WO2018062268A1 - Female connector - Google Patents

Female connector Download PDF

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Publication number
WO2018062268A1
WO2018062268A1 PCT/JP2017/034952 JP2017034952W WO2018062268A1 WO 2018062268 A1 WO2018062268 A1 WO 2018062268A1 JP 2017034952 W JP2017034952 W JP 2017034952W WO 2018062268 A1 WO2018062268 A1 WO 2018062268A1
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WO
WIPO (PCT)
Prior art keywords
female
cap
sealing body
female connector
male
Prior art date
Application number
PCT/JP2017/034952
Other languages
French (fr)
Japanese (ja)
Inventor
瀧本和彦
国重隆彦
佐藤喜典
Original Assignee
株式会社ジェイ・エム・エス
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社ジェイ・エム・エス filed Critical 株式会社ジェイ・エム・エス
Priority to CN201780058428.3A priority Critical patent/CN109715517B/en
Publication of WO2018062268A1 publication Critical patent/WO2018062268A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/10—Tube connectors; Tube couplings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
    • B65D51/20—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing
    • B65D51/22—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing having means for piercing, cutting, or tearing the inner closure

Definitions

  • the present invention relates to a female connector that can be preferably provided in a container in which a liquid material is stored.
  • RTH Ready To Hang
  • bags bags (so-called pouches) are pre-filled with a liquid containing nutrients to be administered to patients are widely used.
  • a connector pouring port
  • an administration set a flexible tube connected to the upstream end of the catheter inserted into the patient's body
  • the connector provided in the bag is a male connector provided with a cylindrical male member, and a female connector (for example, see Patent Document 1) into which the male member can be inserted is provided at the upstream end of the administration set. Yes.
  • Patent Documents 2 and 3 describe a male connector provided in a bag.
  • This male connector is sometimes referred to as so-called “twist-off” (“snap-off”), which is configured to be opened by removing a sealing body (breaking member) that seals the flow path.
  • Type male connector The sealing body is provided at the tip of the cylindrical male member in which the flow path is formed so as to seal the opening of the flow path.
  • the male member and the sealing body are connected via a thinned weakened portion. When the sealing body is twisted, the weakened portion is broken, the sealing body is separated from the male member, and the flow path of the male member is opened.
  • FIG. 13A and FIG. 13A A female connector 910 shown in FIG. 13B and a male connector 920 shown in FIG. 14A and FIG. 14B as a downstream (patient side) connector (hereinafter referred to as “patient side connector”) with respect to the flow of the liquid substance are nutritional medical devices.
  • patient side connector an upstream side (container side) connector
  • FIG. 13A and FIG. A female connector 910 shown in FIG. 13B and a male connector 920 shown in FIG. 14A and FIG. 14B as a downstream (patient side) connector (hereinafter referred to as “patient side connector”) with respect to the flow of the liquid substance are nutritional medical devices.
  • patient side connector The international standardization of ISO 80369-3 is under consideration.
  • a female connector (container side connector) 910 shown in FIGS. 13A and 13B has a hollow cylindrical female member 911.
  • the inner peripheral surface 912 of the female member 911 is a tapered surface (so-called female tapered surface) whose inner diameter increases as it approaches the tip.
  • a screw-shaped projection (male screw) 915 is formed on the outer peripheral surface of the female member 911.
  • a male connector (patient side connector) 920 shown in FIG. 14A and FIG. 14B has a cylindrical male member 921 and an outer cylinder 923 surrounding the male member 921.
  • the outer peripheral surface 922 of the male member 921 is a tapered surface (so-called male tapered surface) whose outer diameter decreases as it approaches the tip.
  • the male member 921 is formed with a flow path 927 that penetrates the male member 921 along the longitudinal direction thereof.
  • the inner peripheral surface 928 of the male member 921 that defines the flow path 927 is a cylindrical surface having a constant inner diameter in the longitudinal direction of the male member 921 or a tapered surface having a larger inner diameter as it approaches the tip of the male member 921 (so-called Female taper surface).
  • a female screw 925 is formed on the inner peripheral surface of the outer cylinder 923 facing the male member 921.
  • the female connector 910 and the male connector 920 are connected by inserting the male member 921 into the female member 911 and screwing the screw-shaped protrusion 915 and the female screw 925 together. Since the inner peripheral surface 912 of the female member 911 and the outer peripheral surface 922 of the male member 921 are tapered surfaces having the same diameter and taper angle, they form a liquid-tight seal and come into surface contact.
  • the screw-like protrusion 915 and the female screw 925 that are screwed together constitute a screw lock mechanism for locking the connection state between the female connector 910 and the male connector 920.
  • the female connector 910 When a female connector (container-side connector) 910 (see FIGS. 13A and 13B) compliant with ISO 80369-3 is attached to a bag as an extraction port to constitute an RTH preparation, the female connector 910 is provided with the above-mentioned Patent Document 2, Similarly to the male connector 3, it is desirable that a sealing body for sealing the flow path is provided and configured to be opened by removing the sealing body.
  • a first object of the present invention is to provide a female connector that includes a female member into which a male member can be inserted and is opened by removing a sealing body that seals a flow path.
  • a second object of the present invention is to provide a female connector that includes a female member into which a male member can be inserted, and in which a liquid material hardly adheres to the inner peripheral surface of the female member.
  • the first female connector of the present invention can be connected to a male connector having a cylindrical male member.
  • the female connector includes a female member having a hollow cylindrical shape, a small diameter portion provided at a proximal end of the female member and having an inner diameter smaller than an inner diameter of the female member, and the small diameter portion via an annular thin portion. And a sealing body that seals the small-diameter portion.
  • the thin-walled portion is configured to be breakable so that the sealing body is separated from the small-diameter portion and the small-diameter portion is opened.
  • the second female connector of the present invention can be connected to a male connector having a cylindrical male member.
  • the female connector includes a female member having a hollow cylindrical shape, an inner cylinder having a hollow cylindrical shape arranged coaxially with the female member, and surrounded by the female member, and an annular thin portion. And a sealing body that is connected to the inner cylinder and seals the flow path provided in the inner cylinder. The thin portion is configured to be ruptured so that the sealing body is separated from the inner cylinder and the flow path of the inner cylinder is opened.
  • the liquid material does not adhere to the inner peripheral surface of the female member unless the sealing portion is removed.
  • FIG. 1A is an exploded perspective view of a female connector and a cap according to Embodiment 1 of the present invention as viewed from below.
  • FIG. 1B is an exploded perspective view of the female connector and the cap according to Embodiment 1 of the present invention as viewed from above.
  • FIG. 1C is an exploded cross-sectional view of the female connector and the cap according to Embodiment 1 of the present invention cut along a plane including the central axis.
  • FIG. 1D is an exploded cross-sectional view of the female connector and the cap according to the first embodiment of the present invention cut along another plane including the central axis.
  • FIG. 1E is a perspective view of the female connector according to Embodiment 1 of the present invention as viewed from the distal end side.
  • FIG. 1F is a perspective view of the cap according to the first embodiment of the present invention as viewed from the side where the cap is attached to the female connector.
  • FIG. 2A is a cross-sectional view taken along a plane including the central axis of the female connector according to Embodiment 1 of the present invention, to which a cap is attached.
  • FIG. 2B is a cross-sectional view taken along another plane including the central axis of the female connector according to Embodiment 1 of the present invention, to which a cap is attached.
  • FIG. 3 is a cross-sectional perspective view showing a state in which a male connector is connected to the opened female connector according to Embodiment 1 of the present invention.
  • FIG. 4A is a perspective view of a female connector according to Embodiment 2 of the present invention as viewed from the distal end side.
  • FIG. 4B is a perspective view of the cap according to the second embodiment of the present invention as viewed from the side where the cap is attached to the female connector.
  • FIG. 5A is a cross-sectional view taken along a plane including the central axis of the female connector according to Embodiment 2 of the present invention, to which a cap is attached.
  • FIG. 5B is a cross-sectional view taken along another plane including the central axis of the female connector according to Embodiment 2 of the present invention, to which a cap is attached.
  • FIG. 6A is a perspective view of a female connector according to Embodiment 3 of the present invention as viewed from the distal end side.
  • FIG. 6B is a cross-sectional perspective view of a cap according to Embodiment 3 of the present invention.
  • FIG. 7A is a cross-sectional view taken along a plane including the central axis of the female connector according to Embodiment 3 of the present invention, to which a cap is attached.
  • FIG. 7B is a cross-sectional view taken along another plane including the central axis of the female connector according to Embodiment 3 of the present invention, to which a cap is attached.
  • FIG. 8A is an exploded perspective view seen from below the female connector and the cap according to the fourth embodiment of the present invention.
  • FIG. 8A is an exploded perspective view seen from below the female connector and the cap according to the fourth embodiment of the present invention.
  • FIG. 8B is an exploded perspective view of the female connector and the cap according to Embodiment 4 of the present invention as viewed from above.
  • FIG. 8C is an exploded cross-sectional view of the female connector and the cap according to the fourth embodiment of the present invention cut along a plane including the central axis.
  • FIG. 8D is an exploded cross-sectional view of the female connector and the cap according to the fourth embodiment of the present invention cut along another plane including the central axis.
  • FIG. 8E is a cross-sectional perspective view of the female connector according to Embodiment 4 of the present invention as seen from the distal end side.
  • FIG. 9A is a sectional view taken along a plane including the central axis of the female connector according to Embodiment 4 of the present invention, to which a cap is attached.
  • FIG. 9B is a cross-sectional view taken along another plane including the central axis of the female connector according to Embodiment 4 of the present invention, to which a cap is attached.
  • FIG. 10A is an exploded perspective view of a female connector and a cap according to Embodiment 5 of the present invention as viewed from below.
  • FIG. 10B is an exploded perspective view of the female connector and the cap according to Embodiment 5 of the present invention as viewed from above.
  • FIG. 10C is an exploded cross-sectional perspective view of the female connector and the cap according to the fifth embodiment of the present invention cut along a plane including the central axis.
  • FIG. 10D is an exploded cross-sectional perspective view of the female connector and the cap according to the fifth embodiment of the present invention cut along another plane including the central axis.
  • FIG. 11A is a sectional view taken along a plane including the central axis of the female connector according to Embodiment 5 of the present invention, to which a cap is attached.
  • FIG. 11B is a cross-sectional view taken along another plane including the central axis of the female connector according to Embodiment 5 of the present invention, to which a cap is attached.
  • FIG. 12 is a cross-sectional view showing a state in which a male connector is connected to the opened female connector according to Embodiment 5 of the present invention.
  • FIG. 13A is a perspective view of a female connector considered as ISO 80369-3.
  • FIG. 13B is a cross-sectional view taken along a plane including the central axis of the female connector.
  • FIG. 14A is a perspective view of a male connector being considered as ISO80369-3.
  • FIG. 14B is a cross-sectional view taken along a plane including the central axis of the male connector.
  • the sealing body may be disposed on the same side as the female member with respect to the small diameter portion. Such a configuration is advantageous for easily performing the operation of opening the female connector because it is easy to access the sealing body from the female member side.
  • the said sealing body may be arrange
  • the female member collides with a peripheral object in a state where the cap is not attached to the female member, it is unlikely that an external force is applied to the sealing body. This is advantageous in avoiding cracks and fractures.
  • a female connector can be easily opened by inserting a stick
  • a liquid-tight seal is formed between the outer peripheral surface of the inner cylinder and the inner peripheral surface of the male member when the male connector is connected to the female connector. It may be configured as follows. The liquid-tight seal prevents the liquid material from flowing between the inner cylinder and the male member to the outer peripheral surface of the male member. Therefore, such a configuration is advantageous for maintaining the sanitary condition of the male connector well.
  • the female member may be configured not to be fluid-tightly fitted to the male member when the male connector is connected to the female connector. Such a configuration facilitates the close contact between the inner cylinder and the male member locally and reliably, which is advantageous in improving the liquid tightness of the seal formed between the inner cylinder and the male member. .
  • the sealing body may be surrounded by the female member and spaced from the female member. According to this configuration, by applying a radial force to the sealing body and displacing it, the thin portion can be broken and the female connector can be opened. In addition, such a configuration allows the cap insertion portion to be inserted into the gap between the sealing body and the female member, so that when the external force is applied, the cap unintentionally falls off the female member. This is advantageous in reducing the possibility of being lost.
  • the sealing body may not protrude from the tip of the female member. In such a configuration, even if the female connector collides with a peripheral object in a state where the cap is not attached to the female member, it is unlikely that an external force is applied to the sealing body. This is advantageous in avoiding cracks and fractures.
  • the sealing body may protrude from the tip of the female member. According to such a configuration, it is possible to open the female connector by breaking the thin-walled portion by directly applying a force to the sealing body without using a cap.
  • the first and second female connectors of the present invention may further include a cap that can be attached to and detached from the female member. Such a configuration is advantageous for maintaining good hygiene of the female member.
  • the cap When an external force in the central axis direction of the female member and an external force in a direction perpendicular to the central axis direction are applied to the cap mounted on the female member, the cap is substantially displaced with respect to the female member.
  • the cap may be configured so that the displaced cap does not collide with the sealing body. Such a configuration is advantageous in avoiding unintentional cracking and breakage of the thin-walled portion when an external force is applied to the cap, such as when the cap collides with a surrounding object.
  • Each of the sealing body and the cap may have an engaging structure that engages with each other.
  • the female connector can be opened by a simple operation of rotating the cap with the cap attached to the female member.
  • the sealing body engaged with the cap via the engagement structure is taken out from the female connector together with the cap. According to such a configuration, it is possible to prevent the sealing body separated from the female connector from dropping off or being lost. In addition, the cap can be prevented from falling off the female member due to gravity or light vibration before the thin portion is broken.
  • the cap may include an insertion portion that can be inserted into the female member.
  • the engagement structure of the cap may be provided in the insertion portion.
  • FIG. 1A is an exploded perspective view of the female connector 1 and the cap 80 according to Embodiment 1 of the present invention as viewed from below
  • FIG. 1B is an exploded perspective view of the female connector 1 and the cap 80 as viewed from above
  • 1C is an exploded sectional view of the female connector 1 and the cap 80 along one plane including the central axis 1a
  • FIG. 1D is a sectional view of the female connector 1 and the cap 80 along another plane including the central axis 1a.
  • FIG. The cross section of FIG. 1D is orthogonal to the cross section of FIG. 1C.
  • FIG. 1E is a perspective view of the female connector 1 as seen from the distal end side.
  • FIG. 1F is a perspective view of the cap 80 as viewed from the side where the cap 80 is attached to the female connector 1.
  • the central axis 1 a is a central axis common to the female connector 1 and the cap 80.
  • a direction parallel to the central axis 1a is referred to as “vertical direction”, and “upper” and “lower” are defined based on FIGS. 1A to 1D. However, “upper” and “lower” do not mean the orientation of the female connector 1 and the cap 80 in actual use.
  • the dimension along the central axis 1a is referred to as “height”.
  • the direction orthogonal to the central axis 1a is referred to as “radial direction”, and the direction of rotation around the central axis 1a is referred to as “circumferential direction”.
  • the female connector 1 includes a female connector main body 10 and a welded portion 50.
  • a thin plate-like partition plate 59 having a substantially rhombic plan view shape is provided between the female connector main body 10 and the welded portion 50.
  • the partition plate 59 protrudes outward along the radial direction from the female connector main body 10 and the welded portion 50.
  • the female connector body 10 includes a female member 11 having a hollow cylindrical shape coaxial with the central axis 1a.
  • the inner peripheral surface 12 of the female member 11 is a tapered surface (so-called female tapered surface) whose inner diameter increases as it approaches the tip (the lower end in FIGS. 1C and 1D).
  • a screw-shaped projection (male thread) 15 is provided on the outer peripheral surface of the female member 11.
  • the base end of the female member 11 (the end opposite to the distal end of the female member 11, the portion corresponding to the partition plate 59 in the first embodiment)
  • a small-diameter portion 13 having an inner diameter smaller than the inner peripheral surface 12 is provided.
  • the small-diameter portion 13 is a circular opening coaxial with the female member 11.
  • the sealing body 30 is connected to the edge of the small-diameter portion 13 through the thin portion 14.
  • the sealing body 30 has a substantially cylindrical shape as a whole.
  • the sealing body 30 is disposed in the female member 11 coaxially with the female member 11 on the same side as the female member 11 with respect to the small-diameter portion 13.
  • the sealing body 30 is spaced apart from the inner peripheral surface 12 of the female member 11 in the radial direction so as to be surrounded by the female member 11.
  • the thin portion 14 is continuous in an annular shape so as to seal between the circular end edge of the small-diameter portion 13 and the circular end edge on the proximal end side of the sealing body 30. As a result, the opening of the small diameter portion 13 is sealed by the sealing body 30.
  • the thin-walled portion 14 is a weakened portion that is thinner than any of the small-diameter portion 13, the female member 11, and the sealing body 30 in the vicinity thereof, and as a result, has a relatively low mechanical strength.
  • a substantially cross-shaped protrusion 32 is provided at the tip of the sealing body 30.
  • the welded portion 50 is a substantially quadrangular prism body having a substantially rhombic plan view shape similar to the partition plate 59.
  • Two flexible sheets (not shown) are stacked with the welded portion 50 sandwiched therebetween, and the outer peripheral edges of the two sheets are welded by a heat seal method to produce a bag filled with a liquid material.
  • the sheet is welded to the outer surface (welded surface) 51 of the welded portion 50.
  • the female connector 1 can be used as a dispensing port for taking out the liquid material filled in the bag.
  • the bag may be an RTH preparation filled with a liquid substance to be administered to a patient in enteral nutrition, for example.
  • the shape of the welding part 50 does not need to be a substantially quadrangular prism body, and the arbitrary shape which can be welded to a sheet
  • the flow path 52 communicating with the small diameter portion 13 passes through the welded portion 50.
  • the inner diameter of the flow path 52 is larger than the inner diameter of the small diameter portion 13.
  • the cap 80 includes a bottom plate 89 and an outer wall 88 provided along the outer peripheral edge of the bottom plate 89, and has a bottomed box shape opened to the female connector 1 side.
  • the bottom plate 89 has a substantially rhombus shape
  • the outer wall 88 forms a substantially quadrangular prism surface.
  • the cap 80 further includes an inner wall 85 that is inscribed in the outer wall 88 and an insertion portion 81 that is surrounded by the inner wall 85.
  • the inner wall 85 and the insertion portion 81 both have a hollow cylindrical shape, are arranged coaxially with the central axis 1a, and are spaced apart from each other in the radial direction.
  • the height from the bottom plate 89 is substantially the same between the outer wall 88 and the inner wall 85, and the insertion portion 81 is lower than these.
  • a circumferentially continuous annular rib 86 is provided at a position slightly spaced from the bottom plate 89 on the inner peripheral surface of the inner wall 85.
  • the annular rib 86 is a protrusion protruding toward the central axis 1 a from the inner peripheral surface of the inner wall 85.
  • four protrusions 82 protruding toward the center are provided on the inner peripheral surface of the insertion portion 81.
  • the four protrusions 82 are arranged at equal intervals in the circumferential direction.
  • the material of the female connector 1 is preferably a hard material, and considering the weldability of the sheet constituting the bag to the welded portion 50, a resin material such as polypropylene or polyethylene is preferable.
  • the material of the cap 80 is also preferably a hard material, and is not limited, but examples thereof include polycarbonate, polypropylene, polyacetal, polyamide, hard polyvinyl chloride, polyethylene, styrene ethylene, polyethylene terephthalate, polybutylene terephthalate, and butylene styrene block copolymer.
  • a resin material is preferred.
  • Each of the female connector 1 and the cap 80 can be integrally manufactured as a whole by injection molding the above resin material.
  • FIGS. 2A and 2B are cross-sectional views along the same cross section as FIG. 1C
  • FIG. 2B is a cross-sectional view along the same cross section as FIG. 1D.
  • a sheet constituting a bag storing the liquid material is welded to the welding portion 50 of the female connector 1.
  • the female member 11 of the female connector 1 is inserted into the gap between the inner wall 85 of the cap 80 and the insertion portion 81.
  • the insertion portion 81 of the cap 80 is inserted into the gap between the female member 11 of the female connector 1 and the sealing body 30.
  • the sealing body 30 of the female connector 1 is inserted into the insertion portion 81 of the cap 80.
  • the tips of the outer wall 88 and the inner wall 85 of the cap 80 are in contact with the partition plate 59 of the female connector 1.
  • the screw-shaped protrusion 15 protruding from the outer peripheral surface of the female member 11 is engaged with an annular rib 86 provided on the inner peripheral surface of the inner wall 85 of the cap 80.
  • the cap 80 does not fall off from the female member 11 due to gravity or light vibration.
  • the annular rib 86 of the cap 80 needs to get over the screw-like protrusion 15 of the female member 11. At this time, the operator can feel a click and recognize that the cap 80 has been attached and detached reliably.
  • the inner periphery of the insertion portion 81 of the cap 80 is formed on the substantially cross-shaped protrusion 32 (see FIG. 1E) provided at the tip of the sealing body 30 of the female connector 1.
  • Four protrusions 82 protruding from the surface are engaged. For this reason, the cap 80 cannot be rotated relative to the sealing body 30.
  • the female connector 1 In order to enterally feed the patient with the liquid in the bag, the female connector 1 needs to be opened.
  • the cap 80 In order to open the female connector 1, the cap 80 may be rotated with respect to the female member 11. Since the protrusion 82 of the cap 80 is engaged with the protrusion 32 of the sealing body 30, when the cap 80 is rotated, the rotational force applied to the cap 80 is transmitted to the sealing body 30. It rotates integrally with the cap 80. Since the thin portion 14 has relatively low mechanical strength, the thin portion 14 is broken and the sealing body 30 is separated from the small diameter portion 13. As a result, the small diameter portion 13 is opened. The cap 80 and the sealing body 30 are removed from the female connector 1.
  • FIG. 3 is a cross-sectional perspective view of the female connector 1 to which the male connector 100 is connected.
  • the female connector 1 shown in FIG. 3 is the same as the female connector 1 shown in FIGS. 1A to 1E except that the thin portion 14 is broken and the sealing body 30 is removed.
  • the male connector 100 is provided at the upstream end of an administration set used for enteral nutrition, for example.
  • the administration set is for connecting a port (that is, female connector 1) of a bag storing a liquid substance and a catheter (for example, a PEG catheter or a nasal catheter) inserted into a patient's body.
  • the male connector 100 includes a male connector body 120 at one end and a base 110 at the other end.
  • the male connector body 120 conforms to ISO80369-3.
  • the same elements as those of the male connector 920 shown in FIGS. 14A and 14B are denoted by the same reference numerals, and detailed description thereof is omitted.
  • a male member 921 of the male connector 100 is inserted into the female member 11 of the female connector 1, and a female screw 925 is screwed into the screw-shaped protrusion 15. Since the inner peripheral surface 12 of the female member 11 is a tapered surface having the same diameter and taper angle as the outer peripheral surface 922 of the male member 921, they form a liquid-tight seal and come into surface contact.
  • the small diameter portion 13 and the flow path 927 of the male member 921 communicate with each other.
  • the screw-shaped protrusion 15 and the female screw 925 that are screwed together constitute a screw lock mechanism for locking the connection state between the female connector 1 and the male connector 100.
  • the base 110 is provided with a connecting cylinder 112.
  • the connecting cylinder 112 is coaxial with the male member 921 and communicates with a flow path 927 provided in the male member 921.
  • the upstream end of the flexible hollow tube constituting the administration set is inserted and fixed in the connection tube 112.
  • the liquid substance stored in the bag flows through the flow path 52 of the female connector 1, the small diameter portion 13, the female member 11, and the flow path 927 of the male member 921 to the administration set in this order.
  • the female connector 1 of the first embodiment includes the female member 11 having a hollow cylindrical shape and the sealing body 30 that seals the small-diameter portion 13.
  • the RTH preparation can be configured by attaching the female connector 1 to a bag in which a liquid material is stored.
  • the sealing body 30 can be removed from the female connector 1 immediately before the liquid is administered to the patient, and then the male connector 100 provided at the upstream end of the administration set can be connected to the female connector 1.
  • the sealing body 30 is provided so as to seal the small-diameter portion 13 of the female connector 1. This has the following effects.
  • the flow path of the female connector 1 can be sealed even if the sealing body 30 is provided at the tip of the female member 11 via the thin portion.
  • the sealing body seals the female connector, since the small diameter portion 13 is opened, the liquid material in the bag fills the space in the female member 11 through the small diameter portion 13. Thereafter, when the sealing body is removed from the female connector 1, the liquid material adheres to the inner peripheral surface 12 of the female member 11. A male member 921 is inserted into the female member 11 (see FIG. 3).
  • the liquid material adhering to the inner peripheral surface 12 of the female member 11 makes it difficult to fit the inner peripheral surface 12 of the female member 11 and the outer peripheral surface 922 of the male member 921 in a liquid-tight manner. For this reason, there is a possibility that leakage of liquid material from between the inner peripheral surface 12 and the outer peripheral surface 922 and a decrease in connection strength between the female connector 1 and the male connector 100 may occur.
  • the liquid material adhering to the inner peripheral surface 12 of the female member 11 overflows from the female member 11, and a gap between the male member 921 and the outer cylinder 923 is obtained. Flows into 926.
  • the liquid material attached to the inner peripheral surface 12 of the female member 11 is transferred to the outer peripheral surface 922 of the male member 921 after separating the male connector 100 from the female connector 1.
  • the gap 926 is very narrow, it is difficult to wipe off and remove the liquid material that has flowed into the gap 926 and the liquid material that has adhered to the outer peripheral surface 922 of the male member 921. For this reason, the male connector 100 (particularly the gap 926 of the male connector main body 120) is likely to be in an unsanitary state.
  • the sealing body 30 is provided so that the small diameter part 13 of the female connector 1 may be sealed (refer FIG. 1C and FIG. 1D). For this reason, unless the sealing body 30 is removed, the liquid material in the bag does not adhere to the inner peripheral surface 12 of the female member 11. If the sealing body 30 is removed from the female connector 1 immediately before the liquid substance is administered to the patient and the male connector 100 is immediately connected, the male substance 100 is attached to the female member 11 without the liquid substance adhering to the inner peripheral surface 12 of the female member 11. Member 921 can be inserted. Therefore, it is unlikely that the above problem will occur.
  • the sealing body 30 that seals the small-diameter portion 13 improves the adhesion between the inner peripheral surface 12 of the female member 11 and the outer peripheral surface 922 of the male member 921 and good hygiene of the gap 926 of the male connector 100. It is advantageous for maintaining the state.
  • the sealing body 30 is disposed on the same side as the female member 11 with respect to the small diameter portion 13. This facilitates access to the sealing body 30 from the female member 11 side, which is advantageous for easily removing the sealing body 30 from the female connector 1.
  • the sealing body 30 is separated from the female member 11 in the radial direction. For this reason, as shown in FIGS. 2A and 2B, the insertion portion 81 of the cap 80 can be inserted into the gap between the sealing body 30 and the female member 11. This allows the insertion portion 81 to be inserted deeply into the female member 11 such that the distal end thereof reaches the vicinity of the proximal end (or small diameter portion 13) of the female member 11. Since the facing region between the female member 11 and the insertion portion 81 is large, there is a region where the outer peripheral surface of the insertion portion 81 and the inner peripheral surface 12 of the female member 11 abut when a radial external force is applied to the cap 80. growing. This is advantageous in reducing the possibility of the cap 80 unintentionally dropping from the female member 11 when such an external force is applied.
  • the insertion portion 81 may not be inserted in the gap between the sealing body 30 and the female member 11.
  • the insertion portion 81 may be inserted into the female member 11 such that the distal end of the insertion portion 81 faces the distal end of the sealing body 30 in the direction of the central axis 1a.
  • the protrusion 82 can be provided at the tip of the insertion portion 81 (the surface facing the sealing body 30).
  • the cap 80 is attached to the female member 11.
  • a bag for example, an RTH preparation
  • a liquid substance is stored is transported to a medical institution such as a hospital with the cap 80 attached to the female connector 1 and until just before enteral nutrition (that is, a female).
  • the cap 80 continues to be attached to the female member 11 (just before opening the connector 1) (see FIGS. 2A and 2B). If the cap 80 is not attached to the female member 11, bacteria may adhere to the female member 11 due to an operator's hand touching the female member 11. Therefore, after that, when the male connector 100 is connected to the female connector 1 and enteral nutrition is performed, bacteria attached to the female member 11 enter the body of the patient or transfer to the male connector 100 to be male.
  • the sanitary condition of the connector 100 (particularly the gap 926) is deteriorated. If the cap 80 is attached to the female member 11 until just before the female connector 1 is opened, the hygienic state of the female member 11 (particularly the inner peripheral surface 12) can be maintained well, and enteral nutrition can be performed. , Bacteria can be prevented from entering the body of the patient or being transferred to the male connector 100.
  • the cap 80 When an external force is applied to the cap 80, such as when the cap 80 collides with a peripheral object while the cap 80 is attached to the female member 11, the cap 80 is displaced with respect to the female connector 1, thereby sealing the insertion portion 81.
  • the sealing body 30 may be displaced by colliding with the body 30.
  • the cap 80 does not substantially displace with respect to the female member 11, or the displaced cap 1 does not collide with the sealing body 30.
  • the cap 80 is preferably configured. Specifically, for example, the following workaround can be considered.
  • the insertion portion 81 of the cap 80 is separated from the sealing body 30 of the female connector 1 in the radial direction.
  • the radial distance between the insertion portion 81 and the sealing body 30 is preferably larger than the radial distance between the insertion portion 81 and the female member 11.
  • the outer peripheral surface of the insertion portion 81 of the cap 80 is fitted to the inner peripheral surface 12 of the female member 11 in a state where the cap 80 is attached to the female member 11 (see FIGS. 2A and 2B).
  • the outer peripheral surface of the insertion portion 81 can be configured with a male tapered surface similar to the outer peripheral surface 922 of the male member 921 (see FIGS. 14A and 14B).
  • the insertion portion 81 is spaced from the sealing body 30 in the radial direction. In this second avoidance measure, since the cap 80 cannot be substantially displaced in the radial direction with respect to the female connector 1, the insertion portion 81 does not collide with the sealing body 30 or displaces the sealing body 30. I won't let you.
  • the insertion portion 81 is configured such that the sealing body 30 is not inserted therein. In the third avoidance measure, even if the cap 80 is displaced in the radial direction with respect to the female connector 1, the insertion portion 81 does not collide with the sealing body 30.
  • the first to third avoidance measures described above are effective in preventing cracking and breakage of the thin wall portion 14 when an external force in the radial direction acts on the cap 80.
  • an avoidance measure for preventing the thin-walled portion 14 from cracking or breaking when an external force in the direction of the central axis 1a acts on the cap 80, for example, the outer wall 88 and / or the inner wall 85 of the cap 80 is
  • the cap 80 does not substantially apply a force in the direction of the central axis 1a to the sealing body 30 (for example, seals with the cap 80).
  • the cap 80 is configured so that the stop body 30 is separated in the direction of the central axis 1a.
  • the second avoidance measure described above is also effective when an external force in the direction of the central axis 1a acts on the cap 80.
  • the cap 80 is sealed in a state where the cap 80 is attached to the female member 11 so that the cap 80 does not collide with the sealing body 30 even if the cap 80 is displaced with respect to the female member 11 by an external force and an external force in the direction of the central axis 1a. It is preferable to separate from the stationary body 30 in the radial direction and the central axis 1a direction.
  • the cap 80 is not attached to the female member 11 until just before the female connector 1 is opened.
  • the cap 80 is not attached to the female member 11.
  • the entire bag for example, RTH preparation
  • the cap 80 is not attached to the female member 11, the above-described problem that the thin portion 14 is cracked or broken due to an external force applied to the cap 80 does not occur.
  • the sealing body 30 is surrounded by the female member 11 and does not protrude from the tip of the female member 11.
  • the cap 80 is not attached to the female member 11 from the viewpoint of preventing the thin portion 14 from being unintentionally cracked or broken by an external force.
  • the cap 80 is used only to remove the sealing body 30 and is attached to the female member 11 immediately before removing the sealing body 30.
  • the sealing body 30 and the cap 80 are provided with a protrusion 32 (see FIG. 1E) and a protrusion 82 (see FIG. 1F) as engaging structures that engage with each other. For this reason, when the cap 80 is rotated around the central axis 1 a with respect to the female member 11, the rotational force applied to the cap 80 is transmitted to the sealing body 30 via the projections 82 and 32, and the thin portion 14 is moved. Can break. Since the sealing body 30 does not protrude from the tip of the female member 11, it is difficult to touch the sealing body 30 directly. According to the first embodiment, the sealing body 30 is removed and the female connector 1 is opened by a simple operation of rotating the cap 80 relative to the female connector 1 with the cap 80 attached to the female member 11. Can do. For this reason, what is called a twist-off type female connector is realizable.
  • the cap 80 may be omitted.
  • the separation of the sealing body 30 in the radial direction from the female member 11 is advantageous for removing the sealing body 30 without using the cap 80.
  • the protrusion 30 is provided on the sealing body 30 and the protrusion 82 is provided on the cap 80 as an engaging structure that is provided on the sealing body 30 and the cap 80 and engages with each other.
  • the combined structure is not limited to this.
  • the engaging structure may have any configuration as long as the rotational force around the central axis 1 a applied to the cap 80 can be transmitted to the sealing body 30.
  • the engagement structure may be configured by a protrusion and a protrusion or a protrusion and a recess that engage with each other.
  • the shape of the convex part and the concave part is arbitrary.
  • the engaging structure is constituted by a convex portion and a concave portion
  • the engagement structure of the sealing body 30 does not need to be provided at the tip of the sealing body 30, and may be provided on the outer peripheral surface of the sealing body 30 as in Embodiment 2 described later.
  • the engagement structure provided in the insertion portion 81 is set according to the position of the engagement structure of the sealing body 30.
  • the engagement structure of the sealing body 30 and the engagement structure of the cap 80 are engaged when the cap 80 approaches the female member 11 along the central axis 1a, and the cap 80 is aligned along the central axis 1a. Is configured to be disengaged from the female member 11.
  • FIG. 4A is a perspective view seen from the distal end side of the female connector 2 according to Embodiment 2 of the present invention.
  • FIG. 4B is a perspective view of the cap 280 according to the second embodiment of the present invention as viewed from the side where the female connector 2 is attached. The second embodiment will be described focusing on the differences from the first embodiment.
  • the longitudinal direction of the sealing body 30 is formed on the outer peripheral surface of the sealing body 30 as shown in FIG. 4A.
  • Four grooves 232 are provided along the line.
  • the grooves 232 are arranged at equal intervals in the circumferential direction.
  • the sealing body 30 of this Embodiment 2 is longer than Embodiment 1, As a result, it protrudes below rather than the front-end
  • four rib-shaped protrusions 282 extending along the longitudinal direction of the insertion portion 81 are provided on the inner peripheral surface of the insertion portion 81 of the cap 280.
  • the protrusions 282 are arranged at equal intervals in the circumferential direction.
  • FIG. 5A and 5B are cross-sectional views of the female connector 2 to which the cap 280 is attached.
  • the cap 280 covers the female member 11 and the sealing body 30 protruding therefrom.
  • the tips of the outer wall 88 and the inner wall 85 of the cap 280 are in contact with the partition plate 59 of the female connector 2.
  • FIG. 5A shows the first embodiment
  • the height of the cap 280 of the second embodiment from the outer wall 88, the inner wall 85, and the bottom plate 89 of the insertion portion 81 is as shown in FIG. Higher than Form 1.
  • the inner peripheral surface of the insertion portion 81 of the cap 280 is inserted into the four grooves 232 (see FIG. 4A) formed on the outer peripheral surface of the sealing body 30 of the female connector 2.
  • Four protrusions 282 protruding from the engagement are engaged. For this reason, the cap 280 cannot be rotated relative to the sealing body 30.
  • the rotational force applied to the cap 280 is applied to the sealing body 30 via the protrusion 282 and the groove 232.
  • the thin portion 14 is broken and the sealing body 30 is separated from the small diameter portion 13.
  • the female connector 2 from which the sealing body 30 has been removed is substantially the same as the female connector 1 of the first embodiment from which the sealing body 30 has been removed.
  • the male connector 100 can be connected to the female connector 2 (see FIG. 3).
  • the sealing body 30 protrudes downward from the tip of the female member 11. For this reason, when the cap 280 is not attached to the female member 11, an external force is applied to the sealing body 30 when the female connector 2 collides with a peripheral object or when an operator touches the female connector 2. There is a possibility that. Thereby, the thin part 14 may crack or break, and a situation may occur in which a liquid material leaks out or bacteria enter the bag. Therefore, in the second embodiment, it is preferable to attach the cap 280 to the female member 11 until immediately before opening the female connector 2.
  • the cap 280 When the cap 280 is attached to the female member 11, as described in the first embodiment, if an unintended external force is applied to the cap 280 due to the cap 280 colliding with a peripheral object, the thin-walled portion 14 is cracked or broken. Can happen. This situation can be avoided by applying a workaround similar to the first to fourth workarounds described in the first embodiment to the second embodiment.
  • the groove 232 is provided on the sealing body 30 and the projection 282 is provided on the cap 280.
  • the combined structure is not limited to this.
  • the number of the grooves 232 and the number of the protrusions 282 do not have to be four, and may be more or less than this.
  • the engaging structure that engages with each other is not limited to the groove 232 and the protrusion 282, but is arbitrary as described in the first embodiment.
  • the engagement structure may be provided at the tip of the sealing body 30 and the bottom surface of the insertion portion 81.
  • the sealing body 30 protrudes beyond the tip of the female member 11, if a radial force is applied to the tip of the sealing body 30 with the cap 280 removed, the thin portion 14 is broken. Thus, the sealing body 30 can be removed. That is, the female connector 2 can be opened without using the cap 280. Therefore, the groove 232 on the outer peripheral surface of the sealing body 30 and / or the protrusion 282 on the inner peripheral surface of the insertion portion 81 can be omitted. By omitting the engagement structure in which the sealing body 30 and the insertion portion 81 are engaged with each other, even if the cap 280 rotates relative to the female connector 2 due to collision of the cap 280 with a peripheral object, the rotation Is not transmitted to the sealing body 11.
  • the cap is attached to the female member 11 in order to maintain the hygienic state of the female member 11 well.
  • the second embodiment is the same as the first embodiment except for the above.
  • the description of the first embodiment is also applied to the second embodiment.
  • FIG. 6A is a perspective view of the female connector 3 according to Embodiment 3 of the present invention as viewed from the front end side.
  • FIG. 6B is a cross-sectional perspective view of a cap 380 according to Embodiment 3 of the present invention.
  • the third embodiment will be described focusing on the differences from the first and second embodiments.
  • a protrusion 335 is provided at the tip of the sealing body 30 of the female connector 3 of the third embodiment.
  • the protrusion 335 includes a columnar protrusion 336 that is coaxial with the sealing body 30, and a pair of side protrusions 337 that protrude in opposite directions along the radial direction from the tip of the columnar protrusion 336 or the vicinity thereof. It has a letter shape.
  • the sealing body 30 of the female connector 3 of the third embodiment is longer than that of the first embodiment, and as a result, the protrusion 335 projects downward from the tip of the female member 11.
  • Two grooves 332 (one groove 332 is not visible in FIG. 6A) along the longitudinal direction of the sealing body 30 (the direction of the central axis 1a) are provided on the outer peripheral surface of the sealing body 30.
  • the grooves 332 are arranged at equal intervals in the circumferential direction.
  • a pair of first protrusions 387 facing each other and a pair of second protrusions 388 facing each other are substantially perpendicular.
  • the second protrusion 388 is provided below the first protrusion 387.
  • two rib-shaped protrusions (third protrusions) 382 along the longitudinal direction are provided on the inner peripheral surface of the insertion portion 81 (only one protrusion 382 is shown in FIG. 6B). )
  • the protrusions 382 are arranged at equal intervals in the circumferential direction.
  • the annular rib 86 provided in the first and second embodiments is not provided on the inner peripheral surface of the inner wall 85 of the cap 380.
  • FIG. 7A and 7B are cross-sectional views of the female connector 3 to which the cap 380 is attached.
  • the first protrusion 387 of the cap 380 is positioned above the side protrusion 337 of the sealing body 30, and both are engaged in the vertical direction. For this reason, although the cap 380 is not provided with the annular rib 86, it does not fall off from the female member 11 due to gravity or light vibration.
  • the two grooves 332 (see FIG. 6A) formed on the outer peripheral surface of the sealing body 30 of the female connector 3 are protruded from the inner peripheral surface of the insertion portion 81 of the cap 380.
  • a protrusion 382 (see FIG. 6B) is fitted and engaged.
  • the side protrusion 337 engages with the second protrusion 388 in the circumferential direction. For this reason, the cap 380 cannot be rotated relative to the sealing body 30.
  • the female connector 3 provided with the protrusion 335 can be integrally manufactured as a whole by, for example, two-color molding.
  • the protrusion 335 can be formed by a primary mold, and the female connector 3 provided with the protrusion 335 can be formed by a secondary mold that houses the protrusion 335.
  • the lateral protrusion 337 and the first protrusion 387 can be engaged by manufacturing the female connector 3 and the cap 380 separately and then pushing the cap 380 toward the female connector 3.
  • the cap 380 when the cap 380 is rotated with respect to the female member 11, the rotational force applied to the cap 380 causes the protrusion 382, the groove 332, and the second protrusion 388. And the side projections 337 are transmitted to the sealing body 30, the thin portion 14 is broken, and the sealing body 30 is separated from the small-diameter portion 13.
  • the female connector 3 from which the sealing body 30 has been removed is substantially the same as the female connector 1 of the first embodiment from which the sealing body 30 has been removed.
  • the male connector 100 can be connected to the female connector 3 (see FIG. 3).
  • the side protrusions 337 of the sealing body 30 engage with the first protrusions 387 of the cap 380 in the vertical direction, and therefore the sealing body 30 cannot be separated from the cap 380. Accordingly, when the cap 380 is rotated with respect to the female connector 3 to break the thin portion 14 and then the cap 380 is separated from the female member 11, the sealing body 30 is housed in the insertion portion 81 together with the cap 380. The female member 11 is taken out. For this reason, the separated sealing body 30 is not dropped or lost.
  • the engaging structure provided on the sealing body 30 and the cap 380 to engage with each other the groove 332 and the protrusion 335 are provided on the sealing body 30, and the protrusions 382, 387, and 388 are provided on the cap 380. It was provided.
  • One for example, the protrusion 382 and the groove 332) may be omitted.
  • the engagement structure for transmitting the rotational force to the sealing body 30 is not limited to the configuration of the present embodiment, and is arbitrary as described in the first and second embodiments.
  • the engagement structure for engaging the cap 380 and the sealing body 30 in the direction of the central axis 1a is not limited to the first protrusion 387 and the side protrusion 337, and can be arbitrarily changed.
  • the engaging structure for transmitting the rotational force applied to the cap 380 to the sealing body 30 and the engaging structure for engaging the cap 380 and the sealing body 30 in the direction of the central axis 1a are configured by a common member. Alternatively, they may be composed of separate members independent of each other.
  • the third embodiment is the same as the first and second embodiments except for the above.
  • the description of the first and second embodiments also applies to the third embodiment.
  • FIG. 8A is an exploded perspective view of the female connector 4 and the cap 480 according to Embodiment 4 of the present invention as viewed from below
  • FIG. 8B is an exploded perspective view of the female connector 4 and the cap 480 as viewed from above
  • 8C is an exploded sectional view of the female connector 4 and the cap 480 along one plane including the central axis 1a
  • FIG. 8D is a sectional view of the female connector 4 and the cap 480 along another plane including the central axis 1a.
  • FIG. The cross section of FIG. 8D is orthogonal to the cross section of FIG. 8C
  • FIG. 8E is a cross-sectional perspective view of the female connector 4 as seen from the distal end side.
  • the cross section of FIG. 8E is the same as the cross section of FIG. 8D.
  • the fourth embodiment will be described focusing on the differences from the first embodiment.
  • the sealing body 30 is disposed on the same side as the female member 11 with respect to the small-diameter portion 13 of the female connector.
  • the sealing body 430 is disposed on the side opposite to the female member 11 with respect to the small-diameter portion 13 in the welded portion 50. It arrange
  • the sealing body 430 has a substantially cylindrical shape or a substantially disc shape as a whole.
  • the thin portion 414 is continuous in an annular shape so as to seal between the circular end edge of the small diameter portion 13 and the circular end edge of the sealing body 430 on the small diameter portion 13 side.
  • a recess 432 is provided on the surface of the sealing body 430 on the small diameter portion 13 side.
  • the recess 432 is a semi-cylindrical recess.
  • the cap 480 includes an insertion portion 481 coaxial with the inner wall 85 in the inner wall 85. As shown in FIG. The distal end of the insertion portion 81 in the first to third embodiments is opened so that the sealing body 30 can be inserted, but the distal end of the insertion portion 481 in the fourth embodiment is not provided with an opening.
  • the insertion portion 481 includes, in order from the bottom plate 89, a base portion 483 and a small-diameter tip portion 484 having a smaller diameter than the base portion 483.
  • a semi-cylindrical convex portion 482 protrudes from the tip of the small diameter tip portion 483.
  • the convex portion 482 protrudes above the outer wall 88 and the inner wall 85 (on the female connector 4 side in FIGS. 8C and 8D).
  • FIGS. 9A and 9B are cross-sectional views of the female connector 4 to which the cap 480 is attached.
  • the base portion 483 and the small diameter tip portion 484 of the cap 480 are inserted into the female member 11 and the small diameter portion 13 of the female connector 4, respectively.
  • a convex portion 482 of the cap 480 is fitted in the concave portion 432 of the sealing body 430.
  • the concave portion 432 and the convex portion 482 each have a semi-cylindrical shape as described above. For this reason, the cap 480 cannot be rotated relative to the sealing body 430.
  • the rotational force applied to the cap 480 is transmitted through the convex portion 482 and the concave portion 432 to the sealing body 430.
  • the thin portion 414 is broken, and the sealing body 430 is separated from the small diameter portion 13.
  • the female connector 4 from which the sealing body 430 has been removed is substantially the same as the female connector 1 of the first embodiment from which the sealing body 30 has been removed.
  • the male connector 100 can be connected to the female connector 4 (see FIG. 3).
  • the sealing body 430 that seals the small-diameter portion 13 is disposed on the side opposite to the female member 11 with respect to the small-diameter portion 13, the thin-walled portion 414 is broken to form a sealing body. By separating 430 from the small-diameter portion 13, the small-diameter portion 13 can be opened.
  • the sealing body 430 is at a deeper position than the small diameter portion 13, it is difficult to access the sealing body 430 from the female member 11 side. For this reason, even if the female connector 4 collides with a peripheral object or an operator touches the female connector 4, there is almost no possibility that an external force is applied to the sealing body 430. For this reason, it is unlikely that the thin-walled portion 414 is unintentionally cracked or broken by an external force, so that a liquid material leaks out or bacteria enter the bag.
  • the female connector 4 can be opened relatively easily.
  • the female connector 4 can be opened.
  • the cap 480 is rotated with respect to the female connector 4 in the state where the cap 480 is attached to the female member 11 as shown in FIGS. 9A and 9B.
  • the female connector 4 Can be opened.
  • the cap 480 is not attached to the female member 11, the rod is inserted into the female member 11, and the rod is simply pushed into the female member 11 with its tip abutted against the sealing body 430.
  • the female connector 4 can be opened.
  • the sealing body 430 is located in the opening surrounded by the small-diameter portion 13, so that the tip of the rod is displaced from the sealing body 430. It is easy to press without.
  • the engaging structure provided in the sealing body 430 and the cap 480 that engage with each other is not limited to the semi-cylindrical concave portion 432 and the convex portion 482, and is arbitrary as described in the first embodiment.
  • the engagement structure provided in the sealing body 430 is not limited to the recess, and may protrude toward the female member 11 side.
  • the engaging structures (the concave portion 432 and the convex portion 482) that engage with each other may be omitted.
  • Embodiment 4 is the same as Embodiment 1 except for the above.
  • the description of the first embodiment is also applied to the fourth embodiment.
  • FIG. 10A is an exploded perspective view of the female connector 5 and the cap 580 according to Embodiment 5 of the present invention as seen from below
  • FIG. 10B is an exploded perspective view of the female connector 5 and the cap 580 as seen from above
  • 10C is an exploded cross-sectional perspective view of the female connector 5 and the cap 580 taken along a plane including a central axis (not shown)
  • FIG. 10D is a central axis (figure of the female connector 5 and the cap 580). It is a disassembled cross-sectional perspective view cut
  • the cross section of FIG. 10D is orthogonal to the cross section of FIG. 10C.
  • the fifth embodiment will be described focusing on the differences from the first to fourth embodiments.
  • the female connector 5 includes an inner cylinder 521 having a hollow cylindrical shape.
  • the inner cylinder 521 is provided in the small diameter portion 13 having a relatively small inner diameter at the proximal end of the female member 11.
  • the inner cylinder 521 is disposed on the same side as the female member 11 with respect to the small-diameter portion 13 so as to be surrounded by the female member 11.
  • the inner cylinder 521 and the female member 11 are disposed coaxially and are spaced apart in the radial direction.
  • the outer peripheral surface 522 of the inner cylinder 521 is provided with a tapered surface (so-called male tapered surface) whose outer diameter decreases as it approaches the tip.
  • the inner cylinder 521 is provided with a flow path 523 along the longitudinal direction of the inner cylinder 521. The flow path 523 communicates with the small diameter portion 13.
  • the sealing body 530 is connected to the tip of the inner cylinder 521 through the thin portion 514.
  • the sealing body 530 has a substantially cylindrical shape as a whole.
  • the sealing body 530 extends from the distal end of the inner cylinder 521 toward the distal end side of the female member 11.
  • the sealing body 530 is coaxial with the female member 11 and is spaced apart from the inner peripheral surface 12 of the female member 11 in the radial direction.
  • the thin portion 514 is annularly continuous so as to seal between the circular edge surrounding the flow path 523 and the circular edge on the inner cylinder 521 side of the sealing body 530 at the tip of the inner cylinder 521. is doing.
  • the thin portion 514 is a weakened portion that is thinner than any of the inner cylinder 521, the female member 11, and the sealing body 530 in the vicinity thereof, and as a result, has a relatively low mechanical strength.
  • the sealing body 530 protrudes downward from the tip of the female member 11.
  • a pair of side protrusions 537 protrude outward along the radial direction from the tip of the sealing body 530 or the vicinity thereof.
  • the sealing body 530 and the pair of side protrusions 537 have a substantially T shape as a whole.
  • the inner peripheral surface 512 of the female member 11 is a cylindrical surface or a female tapered surface having an inner diameter slightly larger than the inner peripheral surface 12 of the first to fourth embodiments and the inner peripheral surface 912 of the female connector 910 shown in FIGS. 13A and 13B. .
  • a pair of first protrusions 587 facing each other and a pair of second protrusions 588 facing each other are provided on the inner peripheral surface of the tubular portion 81 of the cap 580.
  • the direction in which the pair of first protrusions 587 face each other is substantially perpendicular to the direction in which the pair of second protrusions 588 face each other.
  • the second protrusion 588 extends along the vertical direction from the upper side to the lower side with respect to the first protrusion 587.
  • FIGS. 11A and 11B are cross-sectional views of the female connector 5 to which the cap 580 is attached.
  • the cross sections of FIGS. 11A and 11B are the same as the cross sections of FIGS. 10C and 10D, respectively.
  • the first protrusion 587 of the cap 580 is positioned above the side protrusion 537 of the sealing body 530, and both are engaged in the up-down direction.
  • the side protrusion 537 engages with the second protrusion 588 in the circumferential direction. For this reason, the cap 580 cannot be rotated relative to the sealing body 530.
  • the female connector 5 provided with the side projections 537 can be integrally manufactured as a whole by, for example, two-color molding. Specifically, a secondary mold in which the side protrusion 537 and a part of the front end side of the sealing body 530 are integrally formed with a primary mold, and the side protrusion 537 and a part of the sealing body 530 are accommodated.
  • the female connector 3 can be formed with a mold. The lateral protrusion 537 and the first protrusion 587 can be engaged by manufacturing the female connector 5 and the cap 580 separately and then pushing the cap 580 toward the female connector 5.
  • the rotational force applied to the cap 580 is passed through the second protrusion 588 and the side protrusion 537. Is transmitted to the sealing body 530, the thin portion 514 is broken, and the sealing body 530 is separated from the inner cylinder 521. The flow path 523 of the inner cylinder 521 is opened.
  • FIG. 12 is a cross-sectional view of the female connector 5 to which the male connector 100 is connected.
  • the female connector 5 in FIG. 12 is the same as the female connector 5 shown in FIGS. 10A to 10D except that the thin-walled portion 514 is broken and the sealing body 530 is removed.
  • the inner cylinder 521 of the female connector 5 is inserted into the male member 921 of the male connector 100.
  • the outer peripheral surface 522 of the inner cylinder 521 is provided with a tapered male taper surface.
  • the minimum outer diameter on the distal end side of the male tapered surface of the outer peripheral surface 522 is smaller than the inner diameter on the distal end side of the inner peripheral surface 928 defining the flow path 927 of the male member 921 and the proximal end of the male tapered surface of the outer peripheral surface 522
  • the maximum outer diameter on the side is larger than the inner diameter of the inner peripheral surface 928 of the male member 921.
  • the male tapered surface of the inner cylinder 521 and the inner peripheral surface 928 of the male member 921 are fitted, and a liquid-tight seal 529 is formed between them.
  • the inner cylinder 521 and the male member 921 are in fluid-tight communication.
  • the male member 921 of the male connector 100 is inserted into the female member 11 of the female connector 5, and the female screw 925 is screwed into the screw-shaped protrusion 15.
  • the screw-like protrusion 15 and the female screw 925 that are screwed together constitute a screw lock mechanism for locking the connection state between the female connector 5 and the male connector 100.
  • the inner peripheral surface 512 of the female member 11 has a larger inner diameter than the inner peripheral surface 12 of the first to fourth embodiments, the inner peripheral surface 512 and the outer peripheral surface 922 of the male member 921 are separated in the radial direction. is doing.
  • the liquid substance stored in the bag passes through the flow path 52 of the female connector 5, the small diameter portion 13, the flow path 523 of the inner cylinder 521, and the flow path 927 of the male member 921 to the administration set (not shown). Flowing.
  • the female connector 5 of the fifth embodiment includes the inner cylinder 521 coaxial with the female member 11 and the sealing body 530 that seals the flow path 523 of the inner cylinder 521 in the female member 11. .
  • the female connector 5 can be attached to a bag in which a liquid material is stored to constitute an RTH preparation.
  • the seal 530 can be removed from the female connector 5 immediately before the liquid is administered to the patient, and then the male connector 100 provided at the upstream end of the administration set can be connected to the female connector 5.
  • the sealing body 530 is provided so as to seal the flow path 523 of the inner cylinder 521. Therefore, as in the first to fourth embodiments in which the sealing body 30 is provided so as to seal the small-diameter portion 13, unless the sealing body 530 is removed from the inner cylinder 521, the liquid in the bag is It does not adhere to the inner peripheral surface 512 of the member 11.
  • the sealing body 530 that seals the flow path 523 of the inner cylinder 521 is advantageous for maintaining the gap 926 of the male connector 100 in a good sanitary state.
  • the inner cylinder 521 and the male member 921 communicate with each other, and a liquid-tight seal 529 is formed between the inner cylinder 521 and the male member 921.
  • the seal 529 prevents the liquid material from flowing to the inner peripheral surface 512 of the female member 11 and the outer peripheral surface 922 of the male member 921. This is advantageous for maintaining the gap 926 of the male connector 100 in good sanitary condition.
  • the liquid-tight seal 529 is formed between the outer peripheral surface 522 of the inner cylinder 521 and the inner peripheral surface 928 of the male member 921. This is advantageous for forming a liquid tight seal with a simple construction.
  • the fact that the outer peripheral surface 522 of the inner cylinder 521 has a male tapered surface forms a liquid-tight seal 529 between the outer peripheral surface 522 of the inner cylinder 521 and the inner peripheral surface 928 of the male member 921. Is advantageous.
  • the inner peripheral surface 512 of the female member 11 and the outer peripheral surface 922 of the male member 921 are fitted in a liquid-tight manner.
  • the fifth embodiment is not limited to this, and the female member 11 has the same inner peripheral surface 12 as the first to fourth embodiments (the inner peripheral surface 912 shown in FIGS. 13A and 13B) in conformity with ISO 80369-3. May be provided.
  • the inner peripheral surface 12 of the female member 11 and the outer peripheral surface 922 of the male member 921 are fitted in a liquid-tight manner, and a liquid-tight seal is formed between them.
  • the in such a configuration since a plurality of seals are formed between the female connector 5 and the male connector 100, when the pressure of the liquid material rises, the liquid material is slightly between the female connector 5 and the male connector 100. It is advantageous for preventing leakage through the gap to the outside world.
  • the side protrusion 537 of the sealing body 530 engages with the first protrusion 587 of the cap 580 in the vertical direction. Therefore, after the cap 580 is rotated with respect to the female connector 5 to break the thin portion 514 and then the cap 580 is separated from the female member 11, the sealing body 530 is housed in the insertion portion 81 together with the cap 580. Separated from the female member 11. For this reason, the separated sealing body 530 is not dropped or lost.
  • the inner cylinder 521 of the female connector 5 is inserted into the male member 921 of the male connector 100.
  • the present invention is not limited to this.
  • a liquid-tight seal may be formed between the distal end of the inner cylinder 521 and the distal end of the male member 921 by abutting the inner cylinder 521 and the male member 921 in the longitudinal direction.
  • the inner diameter of the inner cylinder 521 can be made larger than that in the fifth embodiment, which is advantageous in reducing the flow resistance of the liquid material flowing through the flow path 523 of the inner cylinder 521.
  • any one of the annular rib 86 and the first protrusion 587 provided on the cap 580 may be omitted. Even in this case, the cap 580 does not fall off the female member 11 due to gravity or light vibration.
  • the side projection 537 is provided on the sealing body 530, and the projections 587 and 588 are provided on the cap 580. It was.
  • the second protrusion 588 and the side protrusion 537 are provided as the engagement structure that transmits the rotational force applied to the cap 580 to the sealing body 530.
  • the engagement structure that transmits the rotational force to the sealing body 30 is as follows. The present invention is not limited to this, and is arbitrary as described in the first and second embodiments.
  • the engagement structure for engaging the cap 580 and the sealing body 530 in the direction of the central axis 1a is not limited to the first protrusion 387 and the side protrusion 537, and can be arbitrarily changed.
  • the engaging structure for transmitting the rotational force applied to the cap 580 to the sealing body 530 and the engaging structure for engaging the cap 580 and the sealing body 530 in the direction of the central axis 1a are configured by a common member. Alternatively, they may be composed of separate members independent of each other.
  • the engagement structure for engaging the cap 580 and the sealing body 530 in the direction of the central axis 1a may be omitted.
  • the engagement structures (the side protrusions 537 and the protrusions 587 and 588) that engage with each other may be omitted.
  • the sealing body 530 does not need to protrude below the tip of the female member 11. That is, unlike the sealing body 30 of Embodiment 1, it does not need to protrude from the front-end
  • FIG. 1 is, unlike the sealing body 30 of Embodiment 1, it does not need to protrude from the front-end
  • the sealing body 530 does not need to extend downward from the tip of the inner cylinder 521.
  • the sealing body 530 may be provided in the flow path 523 of the inner cylinder 521, or the opposite side to the female member 11 with respect to the small diameter portion 13 as in the sealing body 430 of the fourth embodiment.
  • it may be provided so as to protrude toward the flow path 52 in the welded portion 50.
  • the thin-walled portion 514 has an arbitrary position on the inner peripheral surface that defines the flow path 523 of the inner cylinder 521 (an arbitrary position from the distal end to the proximal end of the inner cylinder 521) or the small diameter portion 13 and the sealing body 530. And are connected liquid-tightly.
  • the female connectors 1 to 5 of the first to fifth embodiments described above have the welded portion 50 that is welded to the sheet constituting the bag that stores the liquid material.
  • the female connector of the present invention has the welded portion 50 and the partition plate. 59 may not be provided.
  • the female connector of the present invention in one configuration example, is attached to a port base portion having a welded portion 50 to be welded to a bag seat to form a bag port, and in another configuration example, the flexible connector is flexible. Provided at one end of the tube.
  • the field of use of the present invention is not limited, and can be widely used in any field that handles liquid substances, such as medical treatment, food, and chemistry. Especially, it can utilize preferably in the medical field, especially enteral nutrition.
  • the female connector of the present invention can be preferably used as a dispensing port provided in a container (bag) storing a liquid substance to be administered to a patient, particularly an RTH preparation.

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Abstract

A female member (11) that has a hollow cylinder shape is provided with, at the base end thereof, a small-diameter section (13) that has a smaller inner diameter than the inner diameter of the female member. A sealing body (30) is coupled to the small-diameter section (13) via an annular thin-wall section (14) to seal the small-diameter section (13). The thin-wall section (14) can be ruptured such that the sealing body (30) is decoupled from the small-diameter section (13), and the small-diameter section (13) is opened. When a male connector (100) is connected to a female connector (1) in which the small-diameter section (13) is opened, a male member (921) of the male connector (100) is inserted into the female member (11), and the small-diameter section (13) is communicated with the male member (921).

Description

メスコネクタFemale connector
　本発明は、液状物が貯留された容器に好ましく設けられうるメスコネクタに関する。 The present invention relates to a female connector that can be preferably provided in a container in which a liquid material is stored.
　経腸栄養において、患者に投与される栄養剤を含む液状物を予めバッグ（いわゆるパウチ）に充填したReady To Hang（ＲＴＨ）製剤が広く用いられている。ＲＴＨ製剤では、液状物を注出するためのコネクタ（注出ポート）がバッグに溶着されている。液状物を投与する直前に、コネクタを開口し、コネクタに投与セット（患者の体内に挿入されたカテーテルの上流端に接続される柔軟なチューブ）を接続する。一般に、バッグに設けられるコネクタは、筒状のオス部材を備えたオスコネクタであり、投与セットの上流端には、当該オス部材を挿入可能なメスコネクタ（例えば特許文献１参照）が設けられている。 In enteral nutrition, Ready To Hang (RTH) preparations in which bags (so-called pouches) are pre-filled with a liquid containing nutrients to be administered to patients are widely used. In the RTH preparation, a connector (pouring port) for pouring a liquid material is welded to the bag. Immediately before administration of the liquid substance, the connector is opened, and an administration set (a flexible tube connected to the upstream end of the catheter inserted into the patient's body) is connected to the connector. Generally, the connector provided in the bag is a male connector provided with a cylindrical male member, and a female connector (for example, see Patent Document 1) into which the male member can be inserted is provided at the upstream end of the administration set. Yes.
　特許文献２，３には、バッグに設けられるオスコネクタが記載されている。このオスコネクタは、流路を封止する封止体（折り取り部材）を取り除くことにより開口することができるように構成された、いわゆる「ツイストオフ」（「スナップオフ」と言われることもある）型のオスコネクタである。封止体は、流路が形成された筒状のオス部材の先端に、流路の開口を封止するように設けられる。オス部材と封止体とは、薄肉化された弱化部を介して接続されている。封止体を捩ると、弱化部が破断して封止体がオス部材から分離され、オス部材の流路が開口する。 Patent Documents 2 and 3 describe a male connector provided in a bag. This male connector is sometimes referred to as so-called “twist-off” (“snap-off”), which is configured to be opened by removing a sealing body (breaking member) that seals the flow path. ) Type male connector. The sealing body is provided at the tip of the cylindrical male member in which the flow path is formed so as to seal the opening of the flow path. The male member and the sealing body are connected via a thinned weakened portion. When the sealing body is twisted, the weakened portion is broken, the sealing body is separated from the male member, and the flow path of the male member is opened.
　近年、経腸栄養以外の分野で使用されるコネクタとの誤接続を防止するために、液状物の流れに関して上流側（容器側）のコネクタ（以下「容器側コネクタ」という）として図１３Ａ及び図１３Ｂに示すメスコネクタ９１０が、また、液状物の流れに関して下流側（患者側）のコネクタ（以下「患者側コネクタ」という）として図１４Ａ及び図１４Ｂに示すオスコネクタ９２０が、栄養系の医療機器に関する国際規格ＩＳＯ８０３６９－３として国際標準化することが検討されている。 In order to prevent erroneous connection with a connector used in fields other than enteral nutrition in recent years, as an upstream side (container side) connector (hereinafter referred to as “container side connector”) with respect to the flow of liquid material, FIG. 13A and FIG. A female connector 910 shown in FIG. 13B and a male connector 920 shown in FIG. 14A and FIG. 14B as a downstream (patient side) connector (hereinafter referred to as “patient side connector”) with respect to the flow of the liquid substance are nutritional medical devices. The international standardization of ISO 80369-3 is under consideration.
　図１３Ａ及び図１３Ｂに示すメスコネクタ（容器側コネクタ）９１０は、中空円筒形状のメス部材９１１を有する。メス部材９１１の内周面９１２は、先端に近づくにしたがって内径が大きくなるテーパ面（いわゆるメステーパ面）である。メス部材９１１の外周面には螺状突起（雄ネジ）９１５が形成されている。 A female connector (container side connector) 910 shown in FIGS. 13A and 13B has a hollow cylindrical female member 911. The inner peripheral surface 912 of the female member 911 is a tapered surface (so-called female tapered surface) whose inner diameter increases as it approaches the tip. A screw-shaped projection (male screw) 915 is formed on the outer peripheral surface of the female member 911.
　図１４Ａ及び図１４Ｂに示すオスコネクタ（患者側コネクタ）９２０は、筒形状のオス部材９２１と、オス部材９２１を取り囲む外筒９２３とを有する。オス部材９２１の外周面９２２は、先端に近づくにしたがって外径が小さくなるテーパ面（いわゆるオステーパ面）である。オス部材９２１には、その長手方向に沿ってオス部材９２１を貫通する流路９２７が形成されている。流路９２７を規定するオス部材９２１の内周面９２８は、オス部材９２１の長手方向において内径が一定である円筒面、または、オス部材９２１の先端に近づくにしたがって内径が大きくなるテーパ面（いわゆるメステーパ面）である。外筒９２３のオス部材９２１に対向する内周面には雌ネジ９２５が形成されている。 A male connector (patient side connector) 920 shown in FIG. 14A and FIG. 14B has a cylindrical male member 921 and an outer cylinder 923 surrounding the male member 921. The outer peripheral surface 922 of the male member 921 is a tapered surface (so-called male tapered surface) whose outer diameter decreases as it approaches the tip. The male member 921 is formed with a flow path 927 that penetrates the male member 921 along the longitudinal direction thereof. The inner peripheral surface 928 of the male member 921 that defines the flow path 927 is a cylindrical surface having a constant inner diameter in the longitudinal direction of the male member 921 or a tapered surface having a larger inner diameter as it approaches the tip of the male member 921 (so-called Female taper surface). A female screw 925 is formed on the inner peripheral surface of the outer cylinder 923 facing the male member 921.
　メスコネクタ９１０とオスコネクタ９２０とは、メス部材９１１にオス部材９２１を挿入し、且つ、螺状突起９１５と雌ネジ９２５とを螺合させることにより接続される。メス部材９１１の内周面９１２とオス部材９２１の外周面９２２とは、径及びテーパ角度が一致するテーパ面であるから、両者は、液密なシールを形成して面接触をする。互いに螺合する螺状突起９１５及び雌ネジ９２５は、メスコネクタ９１０とオスコネクタ９２０との接続状態をロックするためのネジロック機構を構成する。 The female connector 910 and the male connector 920 are connected by inserting the male member 921 into the female member 911 and screwing the screw-shaped protrusion 915 and the female screw 925 together. Since the inner peripheral surface 912 of the female member 911 and the outer peripheral surface 922 of the male member 921 are tapered surfaces having the same diameter and taper angle, they form a liquid-tight seal and come into surface contact. The screw-like protrusion 915 and the female screw 925 that are screwed together constitute a screw lock mechanism for locking the connection state between the female connector 910 and the male connector 920.
国際公開第２００８／１５２８７１号パンフレットInternational Publication No. 2008/152871 Pamphlet 特開２００６－３４１９０８号公報JP 2006-341908 A 特開２０１３－０６０２１３号公報JP 2013-060213 A
　ＩＳＯ８０３６９－３に準拠したメスコネクタ（容器側コネクタ）９１０（図１３Ａ及び図１３Ｂ参照）を注出ポートとしてバッグに取り付けてＲＴＨ製剤を構成する場合、メスコネクタ９１０が、上述した特許分文献２，３のオスコネクタと同様に、流路を封止する封止体が設けられて、封止体を取り除くことにより開口されるように構成されることが望まれる。 When a female connector (container-side connector) 910 (see FIGS. 13A and 13B) compliant with ISO 80369-3 is attached to a bag as an extraction port to constitute an RTH preparation, the female connector 910 is provided with the above-mentioned Patent Document 2, Similarly to the male connector 3, it is desirable that a sealing body for sealing the flow path is provided and configured to be opened by removing the sealing body.
　但し、オス部材の先端に封止体を設ける特許分文献２，３と同様に、メス部材９１１の先端に封止体を設けた場合、封止体をメス部材９１１から取り除くより前にメス部材９１１の内周面９１２に液状物が付着する。内周面９１２に付着した液状物は、メス部材９１１の内周面９１２とオス部材９２１の外周面９２２とを液密に嵌合させることを困難にしたり、オスコネクタ９２０のオス部材９２１と外筒９２３との間の隙間９２６に流れ込み、当該隙間９２６の衛生状態を悪化させたりする可能性がある。従って、メス部材９１１の内周面９１２に液状物が付着することは望ましくない。 However, as in Patent Documents 2 and 3 in which a sealing body is provided at the tip of the male member, when the sealing body is provided at the tip of the female member 911, the female member is removed before the sealing body is removed from the female member 911. The liquid material adheres to the inner peripheral surface 912 of 911. The liquid material adhering to the inner peripheral surface 912 makes it difficult to fit the inner peripheral surface 912 of the female member 911 and the outer peripheral surface 922 of the male member 921 in a liquid-tight manner, There is a possibility of flowing into the gap 926 between the cylinder 923 and worsening the sanitary condition of the gap 926. Therefore, it is not desirable that the liquid material adheres to the inner peripheral surface 912 of the female member 911.
　本発明の第１の目的は、オス部材を挿入可能なメス部材を備え、流路を封止する封止体を取り除くことにより開口されるメスコネクタを提供することにある。本発明の第２の目的は、オス部材を挿入可能なメス部材を備え、メス部材の内周面に液状物が付着しにくいメスコネクタを提供することにある。 A first object of the present invention is to provide a female connector that includes a female member into which a male member can be inserted and is opened by removing a sealing body that seals a flow path. A second object of the present invention is to provide a female connector that includes a female member into which a male member can be inserted, and in which a liquid material hardly adheres to the inner peripheral surface of the female member.
　本発明の第１のメスコネクタは、筒状のオス部材を備えたオスコネクタを接続することができる。前記メスコネクタは、中空円筒形状を有するメス部材と、前記メス部材の基端に設けられ、前記メス部材の内径より小さな内径を有する径小部と、環状の薄肉部を介して前記径小部に接続され、前記径小部を封止する封止体とを備える。前記封止体が前記径小部から分離され、前記径小部が開口されるように、前記薄肉部は破断可能に構成されている。前記メスコネクタは、前記径小部が開口された前記メスコネクタに前記オスコネクタが接続されると、前記メス部材に前記オス部材が挿入され、前記径小部は前記オス部材と連通されるように構成されている。 The first female connector of the present invention can be connected to a male connector having a cylindrical male member. The female connector includes a female member having a hollow cylindrical shape, a small diameter portion provided at a proximal end of the female member and having an inner diameter smaller than an inner diameter of the female member, and the small diameter portion via an annular thin portion. And a sealing body that seals the small-diameter portion. The thin-walled portion is configured to be breakable so that the sealing body is separated from the small-diameter portion and the small-diameter portion is opened. In the female connector, when the male connector is connected to the female connector in which the small-diameter portion is opened, the male member is inserted into the female member, and the small-diameter portion is communicated with the male member. It is configured.
　本発明の第２のメスコネクタは、筒状のオス部材を備えたオスコネクタを接続することができる。前記メスコネクタは、中空円筒形状を有するメス部材と、前記メス部材と同軸に、前記メス部材に取り囲まれるように配置された、中空円筒形状を有する内筒と、環状の薄肉部を介して前記内筒に接続され、前記内筒に設けられた流路を封止する封止体とを備える。前記封止体が前記内筒から分離され、前記内筒の前記流路が開口されるように、前記薄肉部は破断可能に構成されている。前記メスコネクタは、前記内筒の前記流路が開口された前記メスコネクタに前記オスコネクタが接続されると、前記メス部材に前記オス部材が挿入され、前記内筒は前記オス部材と連通されるように構成されている。 The second female connector of the present invention can be connected to a male connector having a cylindrical male member. The female connector includes a female member having a hollow cylindrical shape, an inner cylinder having a hollow cylindrical shape arranged coaxially with the female member, and surrounded by the female member, and an annular thin portion. And a sealing body that is connected to the inner cylinder and seals the flow path provided in the inner cylinder. The thin portion is configured to be ruptured so that the sealing body is separated from the inner cylinder and the flow path of the inner cylinder is opened. When the male connector is connected to the female connector in which the flow path of the inner cylinder is opened, the male member is inserted into the female member, and the inner cylinder is communicated with the male member. It is comprised so that.
　本発明によれば、薄肉部を破断して封止部を取り除くことにより開口されるメスコネクタを提供することができる。 According to the present invention, it is possible to provide a female connector that is opened by breaking a thin portion and removing a sealing portion.
　本発明の第１及び第２のメスコネクタでは、封止部が取り除かれない限り、メス部材の内周面に液状物は付着しない。 In the first and second female connectors of the present invention, the liquid material does not adhere to the inner peripheral surface of the female member unless the sealing portion is removed.
図１Ａは、本発明の実施形態１に係るメスコネクタ及びキャップの下方から見た分解斜視図である。FIG. 1A is an exploded perspective view of a female connector and a cap according to Embodiment 1 of the present invention as viewed from below. 図１Ｂは、本発明の実施形態１に係るメスコネクタ及びキャップの上方から見た分解斜視図である。FIG. 1B is an exploded perspective view of the female connector and the cap according to Embodiment 1 of the present invention as viewed from above. 図１Ｃは、本発明の実施形態１に係るメスコネクタ及びキャップの、中心軸を含む一平面に沿って切断された分解断面図である。FIG. 1C is an exploded cross-sectional view of the female connector and the cap according to Embodiment 1 of the present invention cut along a plane including the central axis. 図１Ｄは、本発明の実施形態１に係るメスコネクタ及びキャップの、中心軸を含む別の一平面に沿って切断された分解断面図である。FIG. 1D is an exploded cross-sectional view of the female connector and the cap according to the first embodiment of the present invention cut along another plane including the central axis. 図１Ｅは、本発明の実施形態１に係るメスコネクタの、先端側から見た斜視図である。FIG. 1E is a perspective view of the female connector according to Embodiment 1 of the present invention as viewed from the distal end side. 図１Ｆは、本発明の実施形態１に係るキャップの、メスコネクタに装着される側から見た斜視図である。FIG. 1F is a perspective view of the cap according to the first embodiment of the present invention as viewed from the side where the cap is attached to the female connector. 図２Ａは、キャップが装着された、本発明の実施形態１に係るメスコネクタの、中心軸を含む一平面に沿った断面図である。FIG. 2A is a cross-sectional view taken along a plane including the central axis of the female connector according to Embodiment 1 of the present invention, to which a cap is attached. 図２Ｂは、キャップが装着された、本発明の実施形態１に係るメスコネクタの、中心軸を含む別の一平面に沿った断面図である。FIG. 2B is a cross-sectional view taken along another plane including the central axis of the female connector according to Embodiment 1 of the present invention, to which a cap is attached. 図３は、開口された本発明の実施形態１に係るメスコネクタに、オスコネクタを接続した状態を示した断面斜視図である。FIG. 3 is a cross-sectional perspective view showing a state in which a male connector is connected to the opened female connector according to Embodiment 1 of the present invention. 図４Ａは、本発明の実施形態２に係るメスコネクタの、先端側から見た斜視図である。FIG. 4A is a perspective view of a female connector according to Embodiment 2 of the present invention as viewed from the distal end side. 図４Ｂは、本発明の実施形態２に係るキャップの、メスコネクタに装着される側から見た斜視図である。FIG. 4B is a perspective view of the cap according to the second embodiment of the present invention as viewed from the side where the cap is attached to the female connector. 図５Ａは、キャップが装着された、本発明の実施形態２に係るメスコネクタの、中心軸を含む一平面に沿った断面図である。FIG. 5A is a cross-sectional view taken along a plane including the central axis of the female connector according to Embodiment 2 of the present invention, to which a cap is attached. 図５Ｂは、キャップが装着された、本発明の実施形態２に係るメスコネクタの、中心軸を含む別の一平面に沿った断面図である。FIG. 5B is a cross-sectional view taken along another plane including the central axis of the female connector according to Embodiment 2 of the present invention, to which a cap is attached. 図６Ａは、本発明の実施形態３に係るメスコネクタの、先端側から見た斜視図である。FIG. 6A is a perspective view of a female connector according to Embodiment 3 of the present invention as viewed from the distal end side. 図６Ｂは、本発明の実施形態３に係るキャップの断面斜視図である。FIG. 6B is a cross-sectional perspective view of a cap according to Embodiment 3 of the present invention. 図７Ａは、キャップが装着された、本発明の実施形態３に係るメスコネクタの、中心軸を含む一平面に沿った断面図である。FIG. 7A is a cross-sectional view taken along a plane including the central axis of the female connector according to Embodiment 3 of the present invention, to which a cap is attached. 図７Ｂは、キャップが装着された、本発明の実施形態３に係るメスコネクタの、中心軸を含む別の一平面に沿った断面図である。FIG. 7B is a cross-sectional view taken along another plane including the central axis of the female connector according to Embodiment 3 of the present invention, to which a cap is attached. 図８Ａは、本発明の実施形態４に係るメスコネクタ及びキャップの下方から見た分解斜視図である。FIG. 8A is an exploded perspective view seen from below the female connector and the cap according to the fourth embodiment of the present invention. 図８Ｂは、本発明の実施形態４に係るメスコネクタ及びキャップの上方から見た分解斜視図である。FIG. 8B is an exploded perspective view of the female connector and the cap according to Embodiment 4 of the present invention as viewed from above. 図８Ｃは、本発明の実施形態４に係るメスコネクタ及びキャップの、中心軸を含む一平面に沿って切断された分解断面図である。FIG. 8C is an exploded cross-sectional view of the female connector and the cap according to the fourth embodiment of the present invention cut along a plane including the central axis. 図８Ｄは、本発明の実施形態４に係るメスコネクタ及びキャップの、中心軸を含む別の一平面に沿って切断された分解断面図である。FIG. 8D is an exploded cross-sectional view of the female connector and the cap according to the fourth embodiment of the present invention cut along another plane including the central axis. 図８Ｅは、本発明の実施形態４に係るメスコネクタの、先端側から見た断面斜視図である。FIG. 8E is a cross-sectional perspective view of the female connector according to Embodiment 4 of the present invention as seen from the distal end side. 図９Ａは、キャップが装着された、本発明の実施形態４に係るメスコネクタの、中心軸を含む一平面に沿った断面図である。FIG. 9A is a sectional view taken along a plane including the central axis of the female connector according to Embodiment 4 of the present invention, to which a cap is attached. 図９Ｂは、キャップが装着された、本発明の実施形態４に係るメスコネクタの、中心軸を含む別の一平面に沿った断面図である。FIG. 9B is a cross-sectional view taken along another plane including the central axis of the female connector according to Embodiment 4 of the present invention, to which a cap is attached. 図１０Ａは、本発明の実施形態５に係るメスコネクタ及びキャップの下方から見た分解斜視図である。FIG. 10A is an exploded perspective view of a female connector and a cap according to Embodiment 5 of the present invention as viewed from below. 図１０Ｂは、本発明の実施形態５に係るメスコネクタ及びキャップの上方から見た分解斜視図である。FIG. 10B is an exploded perspective view of the female connector and the cap according to Embodiment 5 of the present invention as viewed from above. 図１０Ｃは、本発明の実施形態５に係るメスコネクタ及びキャップの、中心軸を含む一平面に沿って切断された分解断面斜視図である。FIG. 10C is an exploded cross-sectional perspective view of the female connector and the cap according to the fifth embodiment of the present invention cut along a plane including the central axis. 図１０Ｄは、本発明の実施形態５に係るメスコネクタ及びキャップの、中心軸を含む別の一平面に沿って切断された分解断面斜視図である。FIG. 10D is an exploded cross-sectional perspective view of the female connector and the cap according to the fifth embodiment of the present invention cut along another plane including the central axis. 図１１Ａは、キャップが装着された、本発明の実施形態５に係るメスコネクタの、中心軸を含む一平面に沿った断面図である。FIG. 11A is a sectional view taken along a plane including the central axis of the female connector according to Embodiment 5 of the present invention, to which a cap is attached. 図１１Ｂは、キャップが装着された、本発明の実施形態５に係るメスコネクタの、中心軸を含む別の一平面に沿った断面図である。FIG. 11B is a cross-sectional view taken along another plane including the central axis of the female connector according to Embodiment 5 of the present invention, to which a cap is attached. 図１２は、開口された本発明の実施形態５に係るメスコネクタに、オスコネクタを接続した状態を示した断面図である。FIG. 12 is a cross-sectional view showing a state in which a male connector is connected to the opened female connector according to Embodiment 5 of the present invention. 図１３Ａは、ＩＳＯ８０３６９－３として検討されているメスコネクタの斜視図である。図１３Ｂは、当該メスコネクタの中心軸を含む面に沿った断面図である。FIG. 13A is a perspective view of a female connector considered as ISO 80369-3. FIG. 13B is a cross-sectional view taken along a plane including the central axis of the female connector. 図１４Ａは、ＩＳＯ８０３６９－３として検討されているオスコネクタの斜視図である。図１４Ｂは、当該オスコネクタの中心軸を含む面に沿った断面図である。FIG. 14A is a perspective view of a male connector being considered as ISO80369-3. FIG. 14B is a cross-sectional view taken along a plane including the central axis of the male connector.
　本発明の前記第１のメスコネクタにおいて、前記封止体は、前記径小部に対して前記メス部材と同じ側に配置されていてもよい。かかる構成は、メス部材側から封止体にアクセスするのが容易であるので、メスコネクタを開口する作業を容易に行うのに有利である。 In the first female connector of the present invention, the sealing body may be disposed on the same side as the female member with respect to the small diameter portion. Such a configuration is advantageous for easily performing the operation of opening the female connector because it is easy to access the sealing body from the female member side.
　あるいは、前記封止体は、前記径小部に対して前記メス部材とは反対側に配置されていてもよい。かかる構成は、メス部材にキャップを装着していない状態においてメス部材が周辺物に衝突するなどしても、封止体に外力が加えられる可能性は低いので、外力によって薄肉部が意図せずにひび割れや破断するのを回避するのに有利である。また、かかる構成によれば、メス部材に棒を挿入して、その先端を封止体に押し当てることにより、メスコネクタを容易に開口することができる。 Or the said sealing body may be arrange | positioned on the opposite side to the said female member with respect to the said small diameter part. In such a configuration, even if the female member collides with a peripheral object in a state where the cap is not attached to the female member, it is unlikely that an external force is applied to the sealing body. This is advantageous in avoiding cracks and fractures. Moreover, according to this structure, a female connector can be easily opened by inserting a stick | rod in a female member and pressing the front-end | tip to a sealing body.
　本発明の前記第２のメスコネクタにおいて、前記内筒の外周面は、前記メスコネクタに前記オスコネクタが接続されたとき前記オス部材の内周面との間に液密なシールが形成されるように構成されていてもよい。液密なシールは、液状物が、内筒とオス部材との間を通ってオス部材の外周面等へ流れるのを防止する。従って、かかる構成は、オスコネクタの衛生状態を良好に維持するのに有利である。 In the second female connector of the present invention, a liquid-tight seal is formed between the outer peripheral surface of the inner cylinder and the inner peripheral surface of the male member when the male connector is connected to the female connector. It may be configured as follows. The liquid-tight seal prevents the liquid material from flowing between the inner cylinder and the male member to the outer peripheral surface of the male member. Therefore, such a configuration is advantageous for maintaining the sanitary condition of the male connector well.
　本発明の前記第２のメスコネクタにおいて、前記メス部材は、前記メスコネクタに前記オスコネクタが接続されたとき前記オス部材と液密に嵌合しないように構成されてもよい。かかる構成は、内筒とオス部材とを局所的且つ確実に密着させることを容易にするので、内筒とオス部材との間に形成されるシールの液密性を向上するのに有利である。 In the second female connector of the present invention, the female member may be configured not to be fluid-tightly fitted to the male member when the male connector is connected to the female connector. Such a configuration facilitates the close contact between the inner cylinder and the male member locally and reliably, which is advantageous in improving the liquid tightness of the seal formed between the inner cylinder and the male member. .
　本発明の第１及び第２のメスコネクタにおいて、前記封止体は、前記メス部材に囲まれ且つ前記メス部材から離間して配置されていてもよい。かかる構成によれば、封止体に半径方向の力を加えて変位させることにより、薄肉部を破断させて、メスコネクタを開口させることができる。また、かかる構成は、キャップの挿入部を封止体とメス部材との間の隙間に挿入することを可能にするので、外力が加えられたときにキャップがメス部材から意図せずに脱落してしまう可能性を低減するのに有利である。 In the first and second female connectors of the present invention, the sealing body may be surrounded by the female member and spaced from the female member. According to this configuration, by applying a radial force to the sealing body and displacing it, the thin portion can be broken and the female connector can be opened. In addition, such a configuration allows the cap insertion portion to be inserted into the gap between the sealing body and the female member, so that when the external force is applied, the cap unintentionally falls off the female member. This is advantageous in reducing the possibility of being lost.
　本発明の第１及び第２のメスコネクタにおいて、前記封止体は、前記メス部材の先端から突出していなくてもよい。かかる構成は、メス部材にキャップを装着していない状態においてメスコネクタが周辺物に衝突するなどしても、封止体に外力が加えられる可能性は低いので、外力によって薄肉部が意図せずにひび割れや破断するのを回避するのに有利である。 In the first and second female connectors of the present invention, the sealing body may not protrude from the tip of the female member. In such a configuration, even if the female connector collides with a peripheral object in a state where the cap is not attached to the female member, it is unlikely that an external force is applied to the sealing body. This is advantageous in avoiding cracks and fractures.
　あるいは、本発明の第１及び第２のメスコネクタにおいて、前記封止体は、前記メス部材の先端から突出していてもよい。かかる構成によれば、キャップを用いることなく、封止体に直接力を加えることにより、薄肉部を破断させて、メスコネクタを開口させることができる。 Alternatively, in the first and second female connectors of the present invention, the sealing body may protrude from the tip of the female member. According to such a configuration, it is possible to open the female connector by breaking the thin-walled portion by directly applying a force to the sealing body without using a cap.
　本発明の第１及び第２のメスコネクタは、前記メス部材に着脱可能なキャップを更に備えていてもよい。かかる構成は、メス部材の衛生状態を良好に維持するのに有利である。 The first and second female connectors of the present invention may further include a cap that can be attached to and detached from the female member. Such a configuration is advantageous for maintaining good hygiene of the female member.
　前記メス部材に装着された前記キャップに前記メス部材の中心軸方向の外力及び前記中心軸方向に直交する方向の外力が加えられた場合に、前記キャップが前記メス部材に対して実質的に変位しないように、または、変位した前記キャップが前記封止体に衝突しないように、前記キャップが構成されていてもよい。かかる構成は、キャップが周辺物に衝突するなどによりキャップに外力が加えられた場合に薄肉部が意図せずにひび割れや破断するのを回避するのに有利である。 When an external force in the central axis direction of the female member and an external force in a direction perpendicular to the central axis direction are applied to the cap mounted on the female member, the cap is substantially displaced with respect to the female member. The cap may be configured so that the displaced cap does not collide with the sealing body. Such a configuration is advantageous in avoiding unintentional cracking and breakage of the thin-walled portion when an external force is applied to the cap, such as when the cap collides with a surrounding object.
　前記封止体及び前記キャップのそれぞれは、互いに係合し合う係合構造を備えていてもよい。 Each of the sealing body and the cap may have an engaging structure that engages with each other.
　一構成例では、前記メス部材に対して前記キャップを回転させると、前記係合構造を介して回転力が前記封止体に伝達され、前記薄肉部が破断される。かかる構成によれば、キャップをメス部材に装着した状態でキャップを回転させるという簡単な操作で、メスコネクタを開口させることができる。 In one configuration example, when the cap is rotated with respect to the female member, a rotational force is transmitted to the sealing body via the engagement structure, and the thin portion is broken. According to this configuration, the female connector can be opened by a simple operation of rotating the cap with the cap attached to the female member.
　別の構成例では、前記キャップを前記メス部材から分離すると、前記係合構造を介して前記キャップに係合された前記封止体が前記キャップとともに前記メスコネクタから取り出される。かかる構成によれば、メスコネクタから分離された封止体が脱落したり紛失したりするのを防止することができる。また、薄肉部を破断する前では、重力や軽振動によってキャップがメス部材から脱落するのを防止することができる。 In another configuration example, when the cap is separated from the female member, the sealing body engaged with the cap via the engagement structure is taken out from the female connector together with the cap. According to such a configuration, it is possible to prevent the sealing body separated from the female connector from dropping off or being lost. In addition, the cap can be prevented from falling off the female member due to gravity or light vibration before the thin portion is broken.
　本発明の第１及び第２のメスコネクタにおいて、前記キャップは前記メス部材に挿入可能な挿入部を備えていてもよい。この場合、前記キャップの前記係合構造は、前記挿入部に設けられていてもよい。キャップが、メス部材に挿入される挿入部を備えることは、外力が加えられたときにキャップがメス部材から意図せずに脱落してしまう可能性を低減するのに有利である。このような挿入部に係合構造を設けることは、キャップの構成を簡単化するのに有利である。 In the first and second female connectors of the present invention, the cap may include an insertion portion that can be inserted into the female member. In this case, the engagement structure of the cap may be provided in the insertion portion. Providing the cap with an insertion portion that is inserted into the female member is advantageous in reducing the possibility of the cap unintentionally falling off the female member when an external force is applied. Providing the engagement structure in such an insertion portion is advantageous for simplifying the configuration of the cap.
　以下に、本発明を好適な実施形態を示しながら詳細に説明する。但し、本発明は以下の実施形態に限定されないことはいうまでもない。以下の説明において参照する各図は、説明の便宜上、本発明の実施形態を構成する主要部材を簡略化して示したものである。従って、本発明は以下の各図に示されていない任意の部材を備え得る。また、本発明の範囲内において、以下の各図に示された各部材を変更または省略し得る。各実施形態の説明において引用する図面において、先行する実施形態で引用した図面に示された部材に対応する部材には、当該先行する実施形態の図面と同じ符号が付してある。そのような部材については、重複する説明が省略されており、先行する実施形態の説明を適宜参酌すべきである。 Hereinafter, the present invention will be described in detail while showing preferred embodiments. However, it goes without saying that the present invention is not limited to the following embodiments. Each drawing referred to in the following description shows simplified main members constituting an embodiment of the present invention for convenience of description. Therefore, the present invention can include any member not shown in the following drawings. Further, within the scope of the present invention, each member shown in the following drawings can be changed or omitted. In the drawings cited in the description of the embodiments, members corresponding to the members shown in the drawings cited in the preceding embodiments are denoted by the same reference numerals as those in the drawings of the preceding embodiments. About such a member, the overlapping description is abbreviate | omitted and you should consider the description of previous embodiment suitably.
　（実施形態１）
　図１Ａは、本発明の実施形態１に係るメスコネクタ１及びキャップ８０の下方から見た分解斜視図であり、図１Ｂは、メスコネクタ１及びキャップ８０の上方から見た分解斜視図である。図１Ｃは、メスコネクタ１及びキャップ８０の、中心軸１ａを含む一平面に沿った分解断面図、図１Ｄは、メスコネクタ１及びキャップ８０の、中心軸１ａを含む別の一平面に沿った分解断面図である。図１Ｄの断面は、図１Ｃの断面と直交する。図１Ｅは、メスコネクタ１の、先端側から見た斜視図である。図１Ｆは、キャップ８０の、メスコネクタ１に装着される側から見た斜視図である。中心軸１ａは、メスコネクタ１及びキャップ８０に共通する中心軸である。以下の説明の便宜のために、中心軸１ａに平行な方向を「上下方向」といい、「上」及び「下」は、図１Ａ～図１Ｄに基づいて定義する。但し、「上」及び「下」は、メスコネクタ１及びキャップ８０の実際の使用時の向きを意味するものではない。また、中心軸１ａに沿った寸法を「高さ」という。また、中心軸１ａに直交する方向を「半径方向」、中心軸１ａの周りを回転する方向を「周方向」という。 (Embodiment 1)
1A is an exploded perspective view of the female connector 1 and the cap 80 according to Embodiment 1 of the present invention as viewed from below, and FIG. 1B is an exploded perspective view of the female connector 1 and the cap 80 as viewed from above. 1C is an exploded sectional view of the female connector 1 and the cap 80 along one plane including the central axis 1a, and FIG. 1D is a sectional view of the female connector 1 and the cap 80 along another plane including the central axis 1a. FIG. The cross section of FIG. 1D is orthogonal to the cross section of FIG. 1C. FIG. 1E is a perspective view of the female connector 1 as seen from the distal end side. FIG. 1F is a perspective view of the cap 80 as viewed from the side where the cap 80 is attached to the female connector 1. The central axis 1 a is a central axis common to the female connector 1 and the cap 80. For convenience of the following description, a direction parallel to the central axis 1a is referred to as “vertical direction”, and “upper” and “lower” are defined based on FIGS. 1A to 1D. However, “upper” and “lower” do not mean the orientation of the female connector 1 and the cap 80 in actual use. The dimension along the central axis 1a is referred to as “height”. The direction orthogonal to the central axis 1a is referred to as “radial direction”, and the direction of rotation around the central axis 1a is referred to as “circumferential direction”.
　図１Ａ～図１Ｄに示されているように、メスコネクタ１は、メスコネクタ本体部１０と溶着部５０とを備える。メスコネクタ本体部１０と溶着部５０との間に、略菱形の平面視形状を有する薄板状の仕切板５９が設けられている。仕切板５９は、メスコネクタ本体部１０及び溶着部５０よりも半径方向に沿って外向きに突出している。 As shown in FIGS. 1A to 1D, the female connector 1 includes a female connector main body 10 and a welded portion 50. A thin plate-like partition plate 59 having a substantially rhombic plan view shape is provided between the female connector main body 10 and the welded portion 50. The partition plate 59 protrudes outward along the radial direction from the female connector main body 10 and the welded portion 50.
　メスコネクタ本体部１０は、中心軸１ａと同軸の中空円筒形状を有するメス部材１１を備える。メス部材１１の内周面１２は、先端（図１Ｃ、図１Ｄにおいて下端）に近づくにしたがって内径が大きくなるテーパ面（いわゆるメステーパ面）である。メス部材１１の外周面には螺状突起（雄ネジ）１５が設けられている。これらは、図１３Ａ及び図１３Ｂに示すメスコネクタ９１０と実質的に同じであり、好ましくはＩＳＯ８０３６９－３に準拠している。 The female connector body 10 includes a female member 11 having a hollow cylindrical shape coaxial with the central axis 1a. The inner peripheral surface 12 of the female member 11 is a tapered surface (so-called female tapered surface) whose inner diameter increases as it approaches the tip (the lower end in FIGS. 1C and 1D). A screw-shaped projection (male thread) 15 is provided on the outer peripheral surface of the female member 11. These are substantially the same as the female connector 910 shown in FIGS. 13A and 13B, and preferably conform to ISO 80369-3.
　図１Ｃ及び図１Ｄに示されているように、メス部材１１の基端（メス部材１１の先端とは反対側の端部、本実施形態１では、仕切板５９に対応する部分）には、内周面１２よりも小さな内径を有する径小部１３が設けられている。径小部１３は、メス部材１１と同軸の円形の開口である。 As shown in FIG. 1C and FIG. 1D, the base end of the female member 11 (the end opposite to the distal end of the female member 11, the portion corresponding to the partition plate 59 in the first embodiment) A small-diameter portion 13 having an inner diameter smaller than the inner peripheral surface 12 is provided. The small-diameter portion 13 is a circular opening coaxial with the female member 11.
　図１Ｃ及び図１Ｄに示されているように、封止体３０が、薄肉部１４を介して径小部１３の端縁に接続されている。封止体３０は、全体として略円柱形状を有する。封止体３０は、径小部１３に対してメス部材１１と同じ側に、メス部材１１と同軸に、メス部材１１内に配置されている。封止体３０は、メス部材１１に囲まれるように、メス部材１１の内周面１２から半径方向に離間している。薄肉部１４は、径小部１３の円形の端縁と、封止体３０の基端側の円形の端縁との間を封止するように、環状に連続している。この結果、径小部１３の開口は、封止体３０により封止されている。薄肉部１４は、その近傍の径小部１３、メス部材１１、封止体３０のいずれよりも薄く、その結果、相対的に機械的強度が低下した弱化部である。図１Ｅに示されているように、封止体３０の先端には、略十字状の突起３２が設けられている。 1C and 1D, the sealing body 30 is connected to the edge of the small-diameter portion 13 through the thin portion 14. The sealing body 30 has a substantially cylindrical shape as a whole. The sealing body 30 is disposed in the female member 11 coaxially with the female member 11 on the same side as the female member 11 with respect to the small-diameter portion 13. The sealing body 30 is spaced apart from the inner peripheral surface 12 of the female member 11 in the radial direction so as to be surrounded by the female member 11. The thin portion 14 is continuous in an annular shape so as to seal between the circular end edge of the small-diameter portion 13 and the circular end edge on the proximal end side of the sealing body 30. As a result, the opening of the small diameter portion 13 is sealed by the sealing body 30. The thin-walled portion 14 is a weakened portion that is thinner than any of the small-diameter portion 13, the female member 11, and the sealing body 30 in the vicinity thereof, and as a result, has a relatively low mechanical strength. As shown in FIG. 1E, a substantially cross-shaped protrusion 32 is provided at the tip of the sealing body 30.
　図１Ａ～図１Ｄに示されているように、溶着部５０は、仕切板５９と相似な略菱形の平面視形状を有する略四角柱体である。柔軟な２枚のシート（図示せず）を、その間に溶着部５０を挟んで重ね合わせ、２枚のシートの外周端縁をヒートシール法により溶着して、液状物を充填するバッグが製造される。シートは、溶着部５０の外側面（溶着面）５１に溶着される。メスコネクタ１は、当該バッグに充填された液状物を取り出すための注出ポートとして使用されうる。バッグは、例えば経腸栄養において患者に投与される液状物が充填されたＲＴＨ製剤であってもよい。なお、溶着部５０の形状は、略四角柱体である必要はなく、シートに溶着可能な任意の形状であってもよい。図１Ｃ及び図１Ｄに示されているように、径小部１３と連通した流路５２が溶着部５０を貫通している。流路５２の内径は、径小部１３の内径より大きい。 As shown in FIGS. 1A to 1D, the welded portion 50 is a substantially quadrangular prism body having a substantially rhombic plan view shape similar to the partition plate 59. Two flexible sheets (not shown) are stacked with the welded portion 50 sandwiched therebetween, and the outer peripheral edges of the two sheets are welded by a heat seal method to produce a bag filled with a liquid material. The The sheet is welded to the outer surface (welded surface) 51 of the welded portion 50. The female connector 1 can be used as a dispensing port for taking out the liquid material filled in the bag. The bag may be an RTH preparation filled with a liquid substance to be administered to a patient in enteral nutrition, for example. In addition, the shape of the welding part 50 does not need to be a substantially quadrangular prism body, and the arbitrary shape which can be welded to a sheet | seat may be sufficient. As shown in FIGS. 1C and 1D, the flow path 52 communicating with the small diameter portion 13 passes through the welded portion 50. The inner diameter of the flow path 52 is larger than the inner diameter of the small diameter portion 13.
　キャップ８０は、底板８９と、底板８９の外周端縁に沿って設けられた外壁８８とを備え、メスコネクタ１の側に開口した有底の箱形状を有する。本実施形態１では、底板８９は略菱形を有し、外壁８８は略四角柱面を構成する。キャップ８０は、更に、外壁８８に内接する内壁８５と、内壁８５に取り囲まれた挿入部８１とを備える。内壁８５及び挿入部８１は、いずれも中空の円筒形状を有し、中心軸１ａと同軸に配置され、互いに半径方向に離間している。底板８９からの高さは、外壁８８と内壁８５とはほぼ同じであり、挿入部８１はこれらより低い。図１Ｃ及び図１Ｄに示されているように、内壁８５の内周面の、底板８９からわずかに離間した位置に、周方向に連続した環状リブ８６が設けられている。環状リブ８６は、内壁８５の内周面よりも中心軸１ａに向かって突出した突起である。図１Ｆに示されているように、中央に向かって突出した４つの突起８２が、挿入部８１の内周面に設けられている。４つの突起８２は、周方向に等間隔で配置されている。 The cap 80 includes a bottom plate 89 and an outer wall 88 provided along the outer peripheral edge of the bottom plate 89, and has a bottomed box shape opened to the female connector 1 side. In the first embodiment, the bottom plate 89 has a substantially rhombus shape, and the outer wall 88 forms a substantially quadrangular prism surface. The cap 80 further includes an inner wall 85 that is inscribed in the outer wall 88 and an insertion portion 81 that is surrounded by the inner wall 85. The inner wall 85 and the insertion portion 81 both have a hollow cylindrical shape, are arranged coaxially with the central axis 1a, and are spaced apart from each other in the radial direction. The height from the bottom plate 89 is substantially the same between the outer wall 88 and the inner wall 85, and the insertion portion 81 is lower than these. As shown in FIGS. 1C and 1D, a circumferentially continuous annular rib 86 is provided at a position slightly spaced from the bottom plate 89 on the inner peripheral surface of the inner wall 85. The annular rib 86 is a protrusion protruding toward the central axis 1 a from the inner peripheral surface of the inner wall 85. As shown in FIG. 1F, four protrusions 82 protruding toward the center are provided on the inner peripheral surface of the insertion portion 81. The four protrusions 82 are arranged at equal intervals in the circumferential direction.
　メスコネクタ１の材料は、硬質材料が好ましく、バッグを構成するシートの溶着部５０に対する溶着性を考慮すると、ポリプロピレン、ポリエチレン等の樹脂材料が好ましい。キャップ８０の材料も、硬質材料が好ましく、制限はないが、例えばポリカーボネート、ポリプロピレン、ポリアセタール、ポリアミド、硬質ポリ塩化ビニル、ポリエチレン、スチレンエチレン、ポリエチレンテレフタレート、ポリブチレンテレフタレート、ブチレンスチレンブロック共重合体等の樹脂材料が好ましい。メスコネクタ１及びキャップ８０のそれぞれは、上記の樹脂材料を射出成形することによりその全体が一部品として一体的に製造されうる。 The material of the female connector 1 is preferably a hard material, and considering the weldability of the sheet constituting the bag to the welded portion 50, a resin material such as polypropylene or polyethylene is preferable. The material of the cap 80 is also preferably a hard material, and is not limited, but examples thereof include polycarbonate, polypropylene, polyacetal, polyamide, hard polyvinyl chloride, polyethylene, styrene ethylene, polyethylene terephthalate, polybutylene terephthalate, and butylene styrene block copolymer. A resin material is preferred. Each of the female connector 1 and the cap 80 can be integrally manufactured as a whole by injection molding the above resin material.
　キャップ８０は、図２Ａ及び図２Ｂに示すようにメスコネクタ１に装着される。図２Ａは図１Ｃと同じ断面に沿った断面図であり、図２Ｂは図１Ｄと同じ断面に沿った断面図である。図２Ａ及び図２Ｂでは図示を省略しているが、メスコネクタ１の溶着部５０には、液状物を貯留したバッグを構成するシートが溶着されている。 The cap 80 is attached to the female connector 1 as shown in FIGS. 2A and 2B. 2A is a cross-sectional view along the same cross section as FIG. 1C, and FIG. 2B is a cross-sectional view along the same cross section as FIG. 1D. Although not shown in FIGS. 2A and 2B, a sheet constituting a bag storing the liquid material is welded to the welding portion 50 of the female connector 1.
　メスコネクタ１のメス部材１１が、キャップ８０の内壁８５と挿入部８１との間の隙間に挿入されている。キャップ８０の挿入部８１は、メスコネクタ１のメス部材１１と封止体３０との間の隙間に挿入されている。メスコネクタ１の封止体３０は、キャップ８０の挿入部８１内に挿入されている。キャップ８０の外壁８８及び内壁８５の先端は、メスコネクタ１の仕切板５９に当接している。 The female member 11 of the female connector 1 is inserted into the gap between the inner wall 85 of the cap 80 and the insertion portion 81. The insertion portion 81 of the cap 80 is inserted into the gap between the female member 11 of the female connector 1 and the sealing body 30. The sealing body 30 of the female connector 1 is inserted into the insertion portion 81 of the cap 80. The tips of the outer wall 88 and the inner wall 85 of the cap 80 are in contact with the partition plate 59 of the female connector 1.
　図２Ｂに示されているように、メス部材１１の外周面から突出した螺状突起１５が、キャップ８０の内壁８５の内周面に設けられた環状リブ８６に係合している。このため、キャップ８０は、重力や軽振動によってメス部材１１から脱落することはない。メス部材１１に対してキャップ８０を着脱する際には、キャップ８０の環状リブ８６がメス部材１１の螺状突起１５を乗り越える必要がある。このとき、作業者はクリック感を感じ、キャップ８０の着脱が確実に行われたことを認識することができる。 As shown in FIG. 2B, the screw-shaped protrusion 15 protruding from the outer peripheral surface of the female member 11 is engaged with an annular rib 86 provided on the inner peripheral surface of the inner wall 85 of the cap 80. For this reason, the cap 80 does not fall off from the female member 11 due to gravity or light vibration. When the cap 80 is attached to and detached from the female member 11, the annular rib 86 of the cap 80 needs to get over the screw-like protrusion 15 of the female member 11. At this time, the operator can feel a click and recognize that the cap 80 has been attached and detached reliably.
　図２Ａ及び図２Ｂには明確に示されていないが、メスコネクタ１の封止体３０の先端に設けられた略十字状の突起３２（図１Ｅ参照）にキャップ８０の挿入部８１の内周面から突出した４つの突起８２（図１Ｆ参照）が係合している。このため、封止体３０に対してキャップ８０を相対的に回転させることができない。 Although not clearly shown in FIGS. 2A and 2B, the inner periphery of the insertion portion 81 of the cap 80 is formed on the substantially cross-shaped protrusion 32 (see FIG. 1E) provided at the tip of the sealing body 30 of the female connector 1. Four protrusions 82 (see FIG. 1F) protruding from the surface are engaged. For this reason, the cap 80 cannot be rotated relative to the sealing body 30.
　バッグ内の液状物を患者に投与する経腸栄養を行うためには、メスコネクタ１を開口させる必要がある。メスコネクタ１を開口させるためには、メス部材１１に対してキャップ８０を回転させればよい。キャップ８０の突起８２が封止体３０の突起３２に係合しているので、キャップ８０を回転させると、キャップ８０に加えられた回転力が封止体３０に伝達され、封止体３０はキャップ８０と一体的に回転する。薄肉部１４は相対的に機械的強度が低いので、薄肉部１４が破断され、封止体３０が径小部１３から分離される。この結果、径小部１３が開口する。キャップ８０及び封止体３０は、メスコネクタ１から取り除かれる。 In order to enterally feed the patient with the liquid in the bag, the female connector 1 needs to be opened. In order to open the female connector 1, the cap 80 may be rotated with respect to the female member 11. Since the protrusion 82 of the cap 80 is engaged with the protrusion 32 of the sealing body 30, when the cap 80 is rotated, the rotational force applied to the cap 80 is transmitted to the sealing body 30. It rotates integrally with the cap 80. Since the thin portion 14 has relatively low mechanical strength, the thin portion 14 is broken and the sealing body 30 is separated from the small diameter portion 13. As a result, the small diameter portion 13 is opened. The cap 80 and the sealing body 30 are removed from the female connector 1.
　その後、メスコネクタ１にオスコネクタ１００が接続される。図３は、オスコネクタ１００が接続されたメスコネクタ１の断面斜視図である。図３のメスコネクタ１は、薄肉部１４が破断され、封止体３０が取り除かれている点を除いて、図１Ａ～図１Ｅに示したメスコネクタ１と同じである。 Thereafter, the male connector 100 is connected to the female connector 1. FIG. 3 is a cross-sectional perspective view of the female connector 1 to which the male connector 100 is connected. The female connector 1 shown in FIG. 3 is the same as the female connector 1 shown in FIGS. 1A to 1E except that the thin portion 14 is broken and the sealing body 30 is removed.
　オスコネクタ１００は、例えば経腸栄養を行うときに使用される投与セットの上流端に設けられている。投与セットは、液状物を貯留したバッグのポート（即ち、メスコネクタ１）と、患者の体内に挿入されたカテーテル（例えばＰＥＧカテーテル、経鼻カテーテル）とを接続するためのものである。オスコネクタ１００は、一端にオスコネクタ本体部１２０を備え、他端に基部１１０を備える。 The male connector 100 is provided at the upstream end of an administration set used for enteral nutrition, for example. The administration set is for connecting a port (that is, female connector 1) of a bag storing a liquid substance and a catheter (for example, a PEG catheter or a nasal catheter) inserted into a patient's body. The male connector 100 includes a male connector body 120 at one end and a base 110 at the other end.
　オスコネクタ本体部１２０は、ＩＳＯ８０３６９－３に準拠している。図３において、図１４Ａ及び図１４Ｂに示すオスコネクタ９２０と同じ要素には同じ符号が付してあり、それらの詳細な説明を省略する。メスコネクタ１のメス部材１１にオスコネクタ１００のオス部材９２１が挿入され、且つ、螺状突起１５に雌ネジ９２５が螺合されている。メス部材１１の内周面１２はオス部材９２１の外周面９２２と、径及びテーパ角度が一致するテーパ面であるから、両者は、液密なシールを形成して面接触をする。径小部１３とオス部材９２１の流路９２７とが連通する。互いに螺合する螺状突起１５及び雌ネジ９２５は、メスコネクタ１とオスコネクタ１００との接続状態をロックするためのネジロック機構を構成する。 The male connector body 120 conforms to ISO80369-3. In FIG. 3, the same elements as those of the male connector 920 shown in FIGS. 14A and 14B are denoted by the same reference numerals, and detailed description thereof is omitted. A male member 921 of the male connector 100 is inserted into the female member 11 of the female connector 1, and a female screw 925 is screwed into the screw-shaped protrusion 15. Since the inner peripheral surface 12 of the female member 11 is a tapered surface having the same diameter and taper angle as the outer peripheral surface 922 of the male member 921, they form a liquid-tight seal and come into surface contact. The small diameter portion 13 and the flow path 927 of the male member 921 communicate with each other. The screw-shaped protrusion 15 and the female screw 925 that are screwed together constitute a screw lock mechanism for locking the connection state between the female connector 1 and the male connector 100.
　基部１１０には、接続筒１１２が設けられている。接続筒１１２は、オス部材９２１と同軸であり、且つ、オス部材９２１に設けられた流路９２７と連通する。接続筒１１２に、投与セットを構成する柔軟な中空のチューブの上流端が挿入され固定される。バッグに貯留された液状物は、メスコネクタ１の流路５２、径小部１３、メス部材１１、オス部材９２１の流路９２７を順に通って、投与セットへ流れる。 The base 110 is provided with a connecting cylinder 112. The connecting cylinder 112 is coaxial with the male member 921 and communicates with a flow path 927 provided in the male member 921. The upstream end of the flexible hollow tube constituting the administration set is inserted and fixed in the connection tube 112. The liquid substance stored in the bag flows through the flow path 52 of the female connector 1, the small diameter portion 13, the female member 11, and the flow path 927 of the male member 921 to the administration set in this order.
　以上のように、本実施形態１のメスコネクタ１は、中空円筒形状を有するメス部材１１と、径小部１３を封止する封止体３０とを備える。メスコネクタ１を、液状物を貯留したバッグに取り付けて、ＲＴＨ製剤を構成することができる。液状物を患者に投与する直前にメスコネクタ１から封止体３０を取り除き、次いでメスコネクタ１に、投与セットの上流端に設けられたオスコネクタ１００を接続することができる。 As described above, the female connector 1 of the first embodiment includes the female member 11 having a hollow cylindrical shape and the sealing body 30 that seals the small-diameter portion 13. The RTH preparation can be configured by attaching the female connector 1 to a bag in which a liquid material is stored. The sealing body 30 can be removed from the female connector 1 immediately before the liquid is administered to the patient, and then the male connector 100 provided at the upstream end of the administration set can be connected to the female connector 1.
　封止体３０は、メスコネクタ１の径小部１３を封止するように設けられている。これは、以下の効果を奏する。 The sealing body 30 is provided so as to seal the small-diameter portion 13 of the female connector 1. This has the following effects.
　本実施形態１とは異なり、例えば封止体３０を、薄肉部を介してメス部材１１の先端に設けても、メスコネクタ１の流路を封止することは可能である。この場合、封止体がメスコネクタを封止していても、径小部１３は開口されているので、バッグ内の液状物は径小部１３を通ってメス部材１１内の空間を満たす。その後、メスコネクタ１から封止体を取り除いたとき、メス部材１１の内周面１２に液状物が付着している。このメス部材１１にオス部材９２１が挿入される（図３参照）。 Unlike the first embodiment, for example, the flow path of the female connector 1 can be sealed even if the sealing body 30 is provided at the tip of the female member 11 via the thin portion. In this case, even if the sealing body seals the female connector, since the small diameter portion 13 is opened, the liquid material in the bag fills the space in the female member 11 through the small diameter portion 13. Thereafter, when the sealing body is removed from the female connector 1, the liquid material adheres to the inner peripheral surface 12 of the female member 11. A male member 921 is inserted into the female member 11 (see FIG. 3).
　メス部材１１の内周面１２に付着した液状物は、メス部材１１の内周面１２とオス部材９２１の外周面９２２とを液密に嵌合させることを困難にする。このため、内周面１２と外周面９２２との間からの液状物の漏れ出しや、メスコネクタ１とオスコネクタ１００との接続強度の低下を招く可能性がある。 The liquid material adhering to the inner peripheral surface 12 of the female member 11 makes it difficult to fit the inner peripheral surface 12 of the female member 11 and the outer peripheral surface 922 of the male member 921 in a liquid-tight manner. For this reason, there is a possibility that leakage of liquid material from between the inner peripheral surface 12 and the outer peripheral surface 922 and a decrease in connection strength between the female connector 1 and the male connector 100 may occur.
　また、メス部材１１にオス部材９２１を挿入することにより、メス部材１１の内周面１２に付着していた液状物がメス部材１１からあふれ出し、オス部材９２１と外筒９２３との間の隙間９２６に流れ込む。あるいは、メス部材１１の内周面１２に付着していた液状物が、オスコネクタ１００をメスコネクタ１から分離後に、オス部材９２１の外周面９２２に転着する。図１４Ｂから理解できるように、隙間９２６は非常に狭いので、隙間９２６内に流れ込んだ液状物や、オス部材９２１の外周面９２２に付着した液状物を拭き取り除去することは困難である。このため、オスコネクタ１００（特にオスコネクタ本体部１２０の隙間９２６）は不衛生状態に至りやすい。 Further, by inserting the male member 921 into the female member 11, the liquid material adhering to the inner peripheral surface 12 of the female member 11 overflows from the female member 11, and a gap between the male member 921 and the outer cylinder 923 is obtained. Flows into 926. Alternatively, the liquid material attached to the inner peripheral surface 12 of the female member 11 is transferred to the outer peripheral surface 922 of the male member 921 after separating the male connector 100 from the female connector 1. As can be understood from FIG. 14B, since the gap 926 is very narrow, it is difficult to wipe off and remove the liquid material that has flowed into the gap 926 and the liquid material that has adhered to the outer peripheral surface 922 of the male member 921. For this reason, the male connector 100 (particularly the gap 926 of the male connector main body 120) is likely to be in an unsanitary state.
　これに対して、本実施形態１では、封止体３０は、メスコネクタ１の径小部１３を封止するように設けられている（図１Ｃ及び図１Ｄ参照）。このため、封止体３０を取り除かない限り、バッグ内の液状物は、メス部材１１の内周面１２に付着しない。液状物を患者に投与する直前にメスコネクタ１から封止体３０を取り除き、直ちにオスコネクタ１００を接続すれば、メス部材１１の内周面１２に液状物が付着することなくメス部材１１にオス部材９２１を挿入することができる。従って、上記の問題が生じる可能性は低い。したがって、径小部１３を封止する封止体３０は、メス部材１１の内周面１２とオス部材９２１の外周面９２２との密着性の向上や、オスコネクタ１００の隙間９２６の良好な衛生状態の維持に有利である。 On the other hand, in this Embodiment 1, the sealing body 30 is provided so that the small diameter part 13 of the female connector 1 may be sealed (refer FIG. 1C and FIG. 1D). For this reason, unless the sealing body 30 is removed, the liquid material in the bag does not adhere to the inner peripheral surface 12 of the female member 11. If the sealing body 30 is removed from the female connector 1 immediately before the liquid substance is administered to the patient and the male connector 100 is immediately connected, the male substance 100 is attached to the female member 11 without the liquid substance adhering to the inner peripheral surface 12 of the female member 11. Member 921 can be inserted. Therefore, it is unlikely that the above problem will occur. Therefore, the sealing body 30 that seals the small-diameter portion 13 improves the adhesion between the inner peripheral surface 12 of the female member 11 and the outer peripheral surface 922 of the male member 921 and good hygiene of the gap 926 of the male connector 100. It is advantageous for maintaining the state.
　封止体３０が、径小部１３に対してメス部材１１と同じ側に配置されている。これは、メス部材１１側から封止体３０にアクセスするのを容易にするので、封止体３０をメスコネクタ１から取り除く作業を容易に行うのに有利である。 The sealing body 30 is disposed on the same side as the female member 11 with respect to the small diameter portion 13. This facilitates access to the sealing body 30 from the female member 11 side, which is advantageous for easily removing the sealing body 30 from the female connector 1.
　封止体３０がメス部材１１から半径方向に離間している。このため、図２Ａ及び図２Ｂに示すように、封止体３０とメス部材１１との間の隙間に、キャップ８０の挿入部８１を挿入することができる。これは、挿入部８１を、その先端がメス部材１１の基端（または径小部１３）近傍に達するほどに、メス部材１１内に深く挿入することを可能にする。メス部材１１と挿入部８１との対向領域が大きくなるので、キャップ８０に半径方向の外力が加えられたとき、挿入部８１の外周面とメス部材１１の内周面１２とが当接する領域が大きくなる。これは、そのような外力が加えられたときにキャップ８０がメス部材１１から意図せずに脱落してしまう可能性を低減するのに有利である。 The sealing body 30 is separated from the female member 11 in the radial direction. For this reason, as shown in FIGS. 2A and 2B, the insertion portion 81 of the cap 80 can be inserted into the gap between the sealing body 30 and the female member 11. This allows the insertion portion 81 to be inserted deeply into the female member 11 such that the distal end thereof reaches the vicinity of the proximal end (or small diameter portion 13) of the female member 11. Since the facing region between the female member 11 and the insertion portion 81 is large, there is a region where the outer peripheral surface of the insertion portion 81 and the inner peripheral surface 12 of the female member 11 abut when a radial external force is applied to the cap 80. growing. This is advantageous in reducing the possibility of the cap 80 unintentionally dropping from the female member 11 when such an external force is applied.
　但し、封止体３０とメス部材１１との間の隙間に挿入部８１が挿入されていなくてもよい。例えば、挿入部８１の先端が封止体３０の先端に中心軸１ａ方向に対向するように、挿入部８１はメス部材１１内に挿入されてもよい。この場合、突起８２は挿入部８１の先端（封止体３０に対向する面）に設けることができる。 However, the insertion portion 81 may not be inserted in the gap between the sealing body 30 and the female member 11. For example, the insertion portion 81 may be inserted into the female member 11 such that the distal end of the insertion portion 81 faces the distal end of the sealing body 30 in the direction of the central axis 1a. In this case, the protrusion 82 can be provided at the tip of the insertion portion 81 (the surface facing the sealing body 30).
　メス部材１１にはキャップ８０が装着される。一実施形態では、液状物を貯留したバッグ（例えばＲＴＨ製剤）は、メスコネクタ１にキャップ８０が装着された状態で病院等の医療機関に搬送され、経腸栄養を行う直前まで（即ち、メスコネクタ１を開口する直前まで）、キャップ８０はメス部材１１に装着され続ける（図２Ａ及び図２Ｂ参照）。メス部材１１にキャップ８０が装着されていないと、メス部材１１に作業者の手が触れる等して、メス部材１１に菌が付着する可能性がある。このため、その後、メスコネクタ１にオスコネクタ１００を接続して経腸栄養を行うときに、メス部材１１に付着した菌が、患者の体内に侵入したり、オスコネクタ１００に転着してオスコネクタ１００（特にその隙間９２６）の衛生状態を悪化させたりする。メスコネクタ１を開口する直前までメス部材１１にキャップ８０が装着されていれば、メス部材１１（特にその内周面１２）の衛生状態を良好に維持することができ、経腸栄養の際に、菌が、患者の体内に侵入したり、オスコネクタ１００に転着したりするのを防止できる。 The cap 80 is attached to the female member 11. In one embodiment, a bag (for example, an RTH preparation) in which a liquid substance is stored is transported to a medical institution such as a hospital with the cap 80 attached to the female connector 1 and until just before enteral nutrition (that is, a female). The cap 80 continues to be attached to the female member 11 (just before opening the connector 1) (see FIGS. 2A and 2B). If the cap 80 is not attached to the female member 11, bacteria may adhere to the female member 11 due to an operator's hand touching the female member 11. Therefore, after that, when the male connector 100 is connected to the female connector 1 and enteral nutrition is performed, bacteria attached to the female member 11 enter the body of the patient or transfer to the male connector 100 to be male. The sanitary condition of the connector 100 (particularly the gap 926) is deteriorated. If the cap 80 is attached to the female member 11 until just before the female connector 1 is opened, the hygienic state of the female member 11 (particularly the inner peripheral surface 12) can be maintained well, and enteral nutrition can be performed. , Bacteria can be prevented from entering the body of the patient or being transferred to the male connector 100.
　メス部材１１にキャップ８０を装着した状態でキャップ８０が周辺物に衝突するなどによってキャップ８０に外力が加えられると、キャップ８０がメスコネクタ１に対して変位し、これにより挿入部８１が封止体３０に衝突し封止体３０を変位させることがある。その結果、薄肉部１４がひび割れや破断し、液状物が漏れ出す事態が発生する可能性がある。これを回避するためには、キャップ８０に外力が加えられた場合に、キャップ８０がメス部材１１に対して実質的に変位しないか、または、変位したキャップ１が封止体３０に衝突しないように、キャップ８０が構成されることが好ましい。具体的には、例えば以下の回避策が考えられる。 When an external force is applied to the cap 80, such as when the cap 80 collides with a peripheral object while the cap 80 is attached to the female member 11, the cap 80 is displaced with respect to the female connector 1, thereby sealing the insertion portion 81. The sealing body 30 may be displaced by colliding with the body 30. As a result, there is a possibility that the thin portion 14 is cracked or broken and a liquid material leaks out. In order to avoid this, when an external force is applied to the cap 80, the cap 80 does not substantially displace with respect to the female member 11, or the displaced cap 1 does not collide with the sealing body 30. In addition, the cap 80 is preferably configured. Specifically, for example, the following workaround can be considered.
　第１の回避策では、メス部材１１にキャップ８０を装着した状態（図２Ａ及び図２Ｂ参照）において、キャップ８０の挿入部８１は、メスコネクタ１の封止体３０から半径方向に離間される。より詳細には、挿入部８１と封止体３０との間の半径方向の間隔は、挿入部８１とメス部材１１との間の半径方向の間隔より大きいことが好ましい。この第１の回避策では、キャップ８０がメスコネクタ１に対して半径方向に変位しても、挿入部８１は、メス部材１１には衝突するが、封止体３０には衝突しない。 In the first avoidance measure, in a state where the cap 80 is attached to the female member 11 (see FIGS. 2A and 2B), the insertion portion 81 of the cap 80 is separated from the sealing body 30 of the female connector 1 in the radial direction. . More specifically, the radial distance between the insertion portion 81 and the sealing body 30 is preferably larger than the radial distance between the insertion portion 81 and the female member 11. In the first avoidance measure, even if the cap 80 is displaced in the radial direction with respect to the female connector 1, the insertion portion 81 collides with the female member 11 but does not collide with the sealing body 30.
　第２の回避策では、メス部材１１にキャップ８０を装着した状態（図２Ａ及び図２Ｂ参照）において、キャップ８０の挿入部８１の外周面を、メス部材１１の内周面１２に嵌合させる。例えば、挿入部８１の外周面を、オス部材９２１の外周面９２２（図１４Ａ及び図１４Ｂ参照）と同様のオステーパ面で構成することができる。好ましくは、挿入部８１は封止体３０から半径方向に離間される。この第２の回避策では、キャップ８０はメスコネクタ１に対して半径方向に実質的に変位することができないので、挿入部８１は、封止体３０に衝突しない、または封止体３０を変位させない。 In the second workaround, the outer peripheral surface of the insertion portion 81 of the cap 80 is fitted to the inner peripheral surface 12 of the female member 11 in a state where the cap 80 is attached to the female member 11 (see FIGS. 2A and 2B). . For example, the outer peripheral surface of the insertion portion 81 can be configured with a male tapered surface similar to the outer peripheral surface 922 of the male member 921 (see FIGS. 14A and 14B). Preferably, the insertion portion 81 is spaced from the sealing body 30 in the radial direction. In this second avoidance measure, since the cap 80 cannot be substantially displaced in the radial direction with respect to the female connector 1, the insertion portion 81 does not collide with the sealing body 30 or displaces the sealing body 30. I won't let you.
　第３の回避策では、上述したように、挿入部８１は、その中に封止体３０が挿入されないように構成される。この第３の回避策では、キャップ８０がメスコネクタ１に対して半径方向に変位しても、挿入部８１が封止体３０に衝突することはない。 In the third avoidance measure, as described above, the insertion portion 81 is configured such that the sealing body 30 is not inserted therein. In the third avoidance measure, even if the cap 80 is displaced in the radial direction with respect to the female connector 1, the insertion portion 81 does not collide with the sealing body 30.
　上記の第１～第３の回避策は、キャップ８０に半径方向の外力が作用した場合に薄肉部１４のひび割れや破断を防止するのに有効である。キャップ８０に中心軸１ａ方向の外力が作用した場合に薄肉部１４のひび割れや破断を防止するための回避策（第４の回避策）としては、例えばキャップ８０の外壁８８及び／又は内壁８５がメスコネクタ１の仕切板５９に中心軸１ａ方向に当接したときに、キャップ８０が封止体３０に対して中心軸１ａ方向の力を実質的に加えないように（例えば、キャップ８０と封止体３０とが中心軸１ａ方向に離間するように）、キャップ８０が構成される。上記の第２の回避策は、キャップ８０に中心軸１ａ方向の外力が作用した場合にも有効である。 The first to third avoidance measures described above are effective in preventing cracking and breakage of the thin wall portion 14 when an external force in the radial direction acts on the cap 80. As an avoidance measure (fourth avoidance measure) for preventing the thin-walled portion 14 from cracking or breaking when an external force in the direction of the central axis 1a acts on the cap 80, for example, the outer wall 88 and / or the inner wall 85 of the cap 80 is When the cap 80 abuts against the partition plate 59 of the female connector 1 in the direction of the central axis 1a, the cap 80 does not substantially apply a force in the direction of the central axis 1a to the sealing body 30 (for example, seals with the cap 80). The cap 80 is configured so that the stop body 30 is separated in the direction of the central axis 1a. The second avoidance measure described above is also effective when an external force in the direction of the central axis 1a acts on the cap 80.
　外力による薄肉部１４の意図しないひび割れや破断の防止と、封止体３０をメスコネクタ１から取り除くために行うメスコネクタ１に対するキャップ８０の回転の容易性とを両立させるためには、半径方向の外力及び中心軸１ａ方向の外力によってキャップ８０がメス部材１１に対して変位してもキャップ８０が封止体３０に衝突しないように、キャップ８０をメス部材１１に装着した状態においてキャップ８０は封止体３０に対して半径方向及び中心軸１ａ方向に離間することが好ましい。 In order to achieve both the prevention of unintended cracks and breakage of the thin-walled portion 14 due to external force and the ease of rotation of the cap 80 relative to the female connector 1 for removing the sealing body 30 from the female connector 1, The cap 80 is sealed in a state where the cap 80 is attached to the female member 11 so that the cap 80 does not collide with the sealing body 30 even if the cap 80 is displaced with respect to the female member 11 by an external force and an external force in the direction of the central axis 1a. It is preferable to separate from the stationary body 30 in the radial direction and the central axis 1a direction.
　別の実施形態では、メスコネクタ１を開口する直前まで、メス部材１１にキャップ８０が装着されない。例えば、メスコネクタ１が設けられたバッグ（例えばＲＴＨ製剤）の全体を包装するなどによりメス部材１１の衛生状態を確保することができる場合等では、メス部材１１にキャップ８０を装着する必要はない。メス部材１１にキャップ８０を装着しなければ、キャップ８０に外力が加えられることによって薄肉部１４がひび割れや破断するという上述した問題が生じない。しかも、図１Ｃ及び図１Ｄに示されているように、封止体３０はメス部材１１で取り囲まれ、且つ、メス部材１１の先端から突出していない。このため、メス部材１１にキャップ８０が装着されていない状態でメスコネクタ１が周辺物に衝突するなどしても、封止体３０に外力が加えられる可能性は低い。したがって、外力によって薄肉部１４が意図せずにひび割れや破断するのを回避する観点からは、メス部材１１にキャップ８０が装着されていないことが望ましい。この場合、キャップ８０は、封止体３０を取り除くためにのみ使用され、封止体３０を取り除く直前にメス部材１１に装着される。 In another embodiment, the cap 80 is not attached to the female member 11 until just before the female connector 1 is opened. For example, when the hygienic state of the female member 11 can be ensured by wrapping the entire bag (for example, RTH preparation) provided with the female connector 1, it is not necessary to attach the cap 80 to the female member 11. . If the cap 80 is not attached to the female member 11, the above-described problem that the thin portion 14 is cracked or broken due to an external force applied to the cap 80 does not occur. Moreover, as shown in FIGS. 1C and 1D, the sealing body 30 is surrounded by the female member 11 and does not protrude from the tip of the female member 11. For this reason, even if the female connector 1 collides with a peripheral object in a state where the cap 80 is not attached to the female member 11, the possibility that an external force is applied to the sealing body 30 is low. Therefore, it is desirable that the cap 80 is not attached to the female member 11 from the viewpoint of preventing the thin portion 14 from being unintentionally cracked or broken by an external force. In this case, the cap 80 is used only to remove the sealing body 30 and is attached to the female member 11 immediately before removing the sealing body 30.
　封止体３０及びキャップ８０には、互いに係合し合う係合構造として、突起３２（図１Ｅ参照）及び突起８２（図１Ｆ参照）が設けられている。このため、メス部材１１に対してキャップ８０を中心軸１ａ回りに回転させると、キャップ８０に印加された回転力が突起８２及び突起３２を介して封止体３０に伝達され、薄肉部１４を破断することができる。封止体３０はメス部材１１の先端から突出していないから、封止体３０に直接手を触れることは困難である。本実施形態１によれば、キャップ８０をメス部材１１に装着した状態でキャップ８０をメスコネクタ１に対して回転させるという簡単な操作で、封止体３０を取り除き、メスコネクタ１を開口させることができる。このため、いわゆるツイストオフ型のメスコネクタを実現できる。 The sealing body 30 and the cap 80 are provided with a protrusion 32 (see FIG. 1E) and a protrusion 82 (see FIG. 1F) as engaging structures that engage with each other. For this reason, when the cap 80 is rotated around the central axis 1 a with respect to the female member 11, the rotational force applied to the cap 80 is transmitted to the sealing body 30 via the projections 82 and 32, and the thin portion 14 is moved. Can break. Since the sealing body 30 does not protrude from the tip of the female member 11, it is difficult to touch the sealing body 30 directly. According to the first embodiment, the sealing body 30 is removed and the female connector 1 is opened by a simple operation of rotating the cap 80 relative to the female connector 1 with the cap 80 attached to the female member 11. Can do. For this reason, what is called a twist-off type female connector is realizable.
　もちろん、キャップ８０を用いることなく、メスコネクタ１を開口させることは可能である。例えば、細い棒をメス部材１１内に挿入して、封止体３０に半径方向の力を加えれば、薄肉部１４を破断させて封止体３０を取り除くことが可能である。従って、本実施形態１では、キャップ８０を省略してもよい。封止体３０がメス部材１１から半径方向に離間していることは、キャップ８０を用いずに、封止体３０を取り除くのに有利である。 Of course, it is possible to open the female connector 1 without using the cap 80. For example, if a thin rod is inserted into the female member 11 and a radial force is applied to the sealing body 30, it is possible to break the thin portion 14 and remove the sealing body 30. Therefore, in the first embodiment, the cap 80 may be omitted. The separation of the sealing body 30 in the radial direction from the female member 11 is advantageous for removing the sealing body 30 without using the cap 80.
　上記の例では、封止体３０及びキャップ８０に設けられる、互いに係合し合う係合構造として、封止体３０に突起３２が設けられ、キャップ８０に突起８２が設けられていたが、係合構造はこれに限定されない。係合構造は、キャップ８０に加えられる中心軸１ａ回りの回転力を封止体３０に伝達することができれば、任意の構成を有しうる。例えば、係合構造は、互いに係合し合う凸部と凸部又は凸部と凹部で構成しうる。凸部及び凹部の形状は任意である。係合構造が凸部と凹部で構成される場合、封止体３０及びキャップ８０のうちのいずれに凸部を設けるかは任意である。封止体３０の係合構造は、封止体３０の先端に設けられる必要はなく、後述する実施形態２のように、封止体３０の外周面に設けられてもよい。挿入部８１に設けられる係合構造は、封止体３０の係合構造の位置に応じて設定される。好ましくは、封止体３０の係合構造及びキャップ８０の係合構造は、中心軸１ａに沿ってキャップ８０をメス部材１１に接近させると両者が係合し、中心軸１ａに沿ってキャップ８０をメス部材１１から離間させると両者の係合が解除されるように構成される。 In the above example, the protrusion 30 is provided on the sealing body 30 and the protrusion 82 is provided on the cap 80 as an engaging structure that is provided on the sealing body 30 and the cap 80 and engages with each other. The combined structure is not limited to this. The engaging structure may have any configuration as long as the rotational force around the central axis 1 a applied to the cap 80 can be transmitted to the sealing body 30. For example, the engagement structure may be configured by a protrusion and a protrusion or a protrusion and a recess that engage with each other. The shape of the convex part and the concave part is arbitrary. In the case where the engaging structure is constituted by a convex portion and a concave portion, it is arbitrary which of the sealing body 30 and the cap 80 is provided with the convex portion. The engagement structure of the sealing body 30 does not need to be provided at the tip of the sealing body 30, and may be provided on the outer peripheral surface of the sealing body 30 as in Embodiment 2 described later. The engagement structure provided in the insertion portion 81 is set according to the position of the engagement structure of the sealing body 30. Preferably, the engagement structure of the sealing body 30 and the engagement structure of the cap 80 are engaged when the cap 80 approaches the female member 11 along the central axis 1a, and the cap 80 is aligned along the central axis 1a. Is configured to be disengaged from the female member 11.
　（実施形態２）
　図４Ａは、本発明の実施形態２に係るメスコネクタ２の先端側から見た斜視図である。図４Ｂは、本発明の実施形態２に係るキャップ２８０の、メスコネクタ２に装着される側から見た斜視図である。実施形態１との相違点を中心に、本実施形態２を説明する。 (Embodiment 2)
FIG. 4A is a perspective view seen from the distal end side of the female connector 2 according to Embodiment 2 of the present invention. FIG. 4B is a perspective view of the cap 280 according to the second embodiment of the present invention as viewed from the side where the female connector 2 is attached. The second embodiment will be described focusing on the differences from the first embodiment.
　実施形態１の略十字状の突起３２（図１Ｅ参照）に代えて、本実施形態２では、図４Ａに示されているように封止体３０の外周面に、封止体３０の長手方向に沿った４本の溝２３２が設けられている。溝２３２は、周方向に等間隔で配置されている。また、本実施形態２の封止体３０は、実施形態１より長く、その結果、メス部材１１の先端よりも下方に突出している（後述する図５Ａ及び図５Ｂ参照）。 In the second embodiment, instead of the substantially cross-shaped protrusion 32 (see FIG. 1E) of the first embodiment, the longitudinal direction of the sealing body 30 is formed on the outer peripheral surface of the sealing body 30 as shown in FIG. 4A. Four grooves 232 are provided along the line. The grooves 232 are arranged at equal intervals in the circumferential direction. Moreover, the sealing body 30 of this Embodiment 2 is longer than Embodiment 1, As a result, it protrudes below rather than the front-end | tip of the female member 11 (refer FIG. 5A and FIG. 5B mentioned later).
　図４Ｂに示されているように、キャップ２８０の挿入部８１の内周面には、挿入部８１の長手方向に沿って延びた４本のリブ状の突起２８２が設けられている。突起２８２は、周方向に等間隔で配置されている。 4B, four rib-shaped protrusions 282 extending along the longitudinal direction of the insertion portion 81 are provided on the inner peripheral surface of the insertion portion 81 of the cap 280. The protrusions 282 are arranged at equal intervals in the circumferential direction.
　図５Ａ及び図５Ｂは、キャップ２８０が装着されたメスコネクタ２の断面図である。キャップ２８０は、メス部材１１とこれから突出した封止体３０を覆っている。実施形態１と同様に、キャップ２８０の外壁８８及び内壁８５の先端は、メスコネクタ２の仕切板５９に当接している。図５Ａを実施形態１を示した図２Ｂと比較すれば容易に理解できるように、本実施形態２のキャップ２８０の外壁８８、内壁８５、及び挿入部８１の底板８９からの高さは、実施形態１より高い。 5A and 5B are cross-sectional views of the female connector 2 to which the cap 280 is attached. The cap 280 covers the female member 11 and the sealing body 30 protruding therefrom. As in the first embodiment, the tips of the outer wall 88 and the inner wall 85 of the cap 280 are in contact with the partition plate 59 of the female connector 2. As can be easily understood by comparing FIG. 5A with FIG. 2B showing the first embodiment, the height of the cap 280 of the second embodiment from the outer wall 88, the inner wall 85, and the bottom plate 89 of the insertion portion 81 is as shown in FIG. Higher than Form 1.
　図５Ａ及び図５Ｂには明確に示されていないが、メスコネクタ２の封止体３０の外周面に形成された４つの溝２３２（図４Ａ参照）にキャップ２８０の挿入部８１の内周面から突出した４つの突起２８２（図４Ｂ参照）が嵌入し係合している。このため、封止体３０に対してキャップ２８０を相対的に回転させることができない。 Although not clearly shown in FIGS. 5A and 5B, the inner peripheral surface of the insertion portion 81 of the cap 280 is inserted into the four grooves 232 (see FIG. 4A) formed on the outer peripheral surface of the sealing body 30 of the female connector 2. Four protrusions 282 (see FIG. 4B) protruding from the engagement are engaged. For this reason, the cap 280 cannot be rotated relative to the sealing body 30.
　実施形態１と同様に、本実施形態２においても、メス部材１１に対してキャップ２８０を回転させると、キャップ２８０に加えられた回転力が、突起２８２及び溝２３２を介して封止体３０に伝達され、薄肉部１４が破断され、封止体３０が径小部１３から分離される。封止体３０が取り除かれたメスコネクタ２は、封止体３０が取り除かれた実施形態１のメスコネクタ１と実質的に同じである。実施形態１と同様に、メスコネクタ２にオスコネクタ１００を接続することができる（図３参照）。 Similarly to the first embodiment, also in the second embodiment, when the cap 280 is rotated with respect to the female member 11, the rotational force applied to the cap 280 is applied to the sealing body 30 via the protrusion 282 and the groove 232. The thin portion 14 is broken and the sealing body 30 is separated from the small diameter portion 13. The female connector 2 from which the sealing body 30 has been removed is substantially the same as the female connector 1 of the first embodiment from which the sealing body 30 has been removed. As in the first embodiment, the male connector 100 can be connected to the female connector 2 (see FIG. 3).
　本実施形態２では、封止体３０がメス部材１１の先端よりも下方に突出している。このため、メス部材１１にキャップ２８０が装着されていない場合には、メスコネクタ２が周辺物に衝突したり、作業者がメスコネクタ２に触れたりすることにより、封止体３０に外力が加えられる可能性がある。これにより、薄肉部１４がひび割れや破断して、液状物が漏れ出したり、バッグ内へ菌が侵入したりするという事態が起こりうる。従って、本実施形態２では、メスコネクタ２を開口する直前までメス部材１１にキャップ２８０を装着しておくことが好ましい。 In the second embodiment, the sealing body 30 protrudes downward from the tip of the female member 11. For this reason, when the cap 280 is not attached to the female member 11, an external force is applied to the sealing body 30 when the female connector 2 collides with a peripheral object or when an operator touches the female connector 2. There is a possibility that. Thereby, the thin part 14 may crack or break, and a situation may occur in which a liquid material leaks out or bacteria enter the bag. Therefore, in the second embodiment, it is preferable to attach the cap 280 to the female member 11 until immediately before opening the female connector 2.
　キャップ２８０をメス部材１１に装着した場合には、実施形態１で説明したように、キャップ２８０が周辺物に衝突するなどによってキャップ２８０に意図しない外力が加えられると、薄肉部１４がひび割れや破断する事態が起こりうる。この事態は、実施形態１で説明した第１～第４の回避策と同様の回避策を本実施形態２に適用することによって回避することができる。 When the cap 280 is attached to the female member 11, as described in the first embodiment, if an unintended external force is applied to the cap 280 due to the cap 280 colliding with a peripheral object, the thin-walled portion 14 is cracked or broken. Can happen. This situation can be avoided by applying a workaround similar to the first to fourth workarounds described in the first embodiment to the second embodiment.
　上記の例では、封止体３０及びキャップ２８０に設けられる、互いに係合し合う係合構造として、封止体３０に溝２３２が設けられ、キャップ２８０に突起２８２が設けられていたが、係合構造はこれに限定されない。溝２３２の数及び突起２８２の数は、それぞれ４つである必要はなく、これより多くても少なくてもよい。互いに係合し合う係合構造は、溝２３２及び突起２８２に限定されず、実施形態１で説明したように任意である。係合構造が、封止体３０の先端、及び、挿入部８１の底面に設けられていてもよい。 In the above example, as the engaging structure provided on the sealing body 30 and the cap 280 to engage with each other, the groove 232 is provided on the sealing body 30 and the projection 282 is provided on the cap 280. The combined structure is not limited to this. The number of the grooves 232 and the number of the protrusions 282 do not have to be four, and may be more or less than this. The engaging structure that engages with each other is not limited to the groove 232 and the protrusion 282, but is arbitrary as described in the first embodiment. The engagement structure may be provided at the tip of the sealing body 30 and the bottom surface of the insertion portion 81.
　本実施形態２では、封止体３０がメス部材１１の先端よりも突出しているので、キャップ２８０を取り外した状態で封止体３０の先端に半径方向の力を加えれば、薄肉部１４を破断させて封止体３０を取り除くことができる。即ち、キャップ２８０を用いなくても、メスコネクタ２を開口させることができる。従って、封止体３０の外周面の溝２３２及び／又は挿入部８１の内周面の突起２８２を省略することが可能である。封止体３０と挿入部８１とが相互に係合する係合構造を省略することにより、キャップ２８０が周辺物に衝突するなどによってキャップ２８０がメスコネクタ２に対して回転しても、その回転が封止体１１に伝達されない。これは、キャップ２８０が周辺物に衝突するなどによって、薄肉部１４が意図せずにひび割れや破断するのを防止するのに有利である。この場合、キャップは、メス部材１１の衛生状態を良好に維持するためにメス部材１１に装着される。上述した実施形態１においても、互いに係合し合う係合構造（突起３２及び突起８２）を省略してもよい。 In the second embodiment, since the sealing body 30 protrudes beyond the tip of the female member 11, if a radial force is applied to the tip of the sealing body 30 with the cap 280 removed, the thin portion 14 is broken. Thus, the sealing body 30 can be removed. That is, the female connector 2 can be opened without using the cap 280. Therefore, the groove 232 on the outer peripheral surface of the sealing body 30 and / or the protrusion 282 on the inner peripheral surface of the insertion portion 81 can be omitted. By omitting the engagement structure in which the sealing body 30 and the insertion portion 81 are engaged with each other, even if the cap 280 rotates relative to the female connector 2 due to collision of the cap 280 with a peripheral object, the rotation Is not transmitted to the sealing body 11. This is advantageous in preventing the thin-walled portion 14 from unintentionally cracking or breaking due to the cap 280 colliding with surrounding objects. In this case, the cap is attached to the female member 11 in order to maintain the hygienic state of the female member 11 well. Also in Embodiment 1 mentioned above, you may abbreviate | omit the engagement structure (protrusion 32 and protrusion 82) which mutually engages.
　本実施形態２は、上記を除いて実施形態１と同様である。実施形態１の説明が本実施形態２にも適用される。 The second embodiment is the same as the first embodiment except for the above. The description of the first embodiment is also applied to the second embodiment.
　（実施形態３）
　図６Ａは、本発明の実施形態３に係るメスコネクタ３の先端側から見た斜視図である。図６Ｂは、本発明の実施形態３に係るキャップ３８０の断面斜視図である。実施形態１，２との相違点を中心に、本実施形態３を説明する。 (Embodiment 3)
FIG. 6A is a perspective view of the female connector 3 according to Embodiment 3 of the present invention as viewed from the front end side. FIG. 6B is a cross-sectional perspective view of a cap 380 according to Embodiment 3 of the present invention. The third embodiment will be described focusing on the differences from the first and second embodiments.
　図６Ａに示されているように、本実施形態３のメスコネクタ３の封止体３０の先端には突起３３５が設けられている。突起３３５は、封止体３０と同軸の柱状突起３３６と、柱状突起３３６の先端又はその近傍から半径方向に沿って互いに逆向きに突出した一対の側方突起３３７とを備え、全体とし略Ｔ字形状を有している。本実施形態３のメスコネクタ３の封止体３０は、実施形態１より長く、その結果、突起３３５は、メス部材１１の先端よりも下方に突出している。封止体３０の外周面には、封止体３０の長手方向（中心軸１ａ方向）に沿った２本の溝３３２（図６Ａでは、一方の溝３３２は見えない）が設けられている。溝３３２は、周方向に等間隔に配置されている。 As shown in FIG. 6A, a protrusion 335 is provided at the tip of the sealing body 30 of the female connector 3 of the third embodiment. The protrusion 335 includes a columnar protrusion 336 that is coaxial with the sealing body 30, and a pair of side protrusions 337 that protrude in opposite directions along the radial direction from the tip of the columnar protrusion 336 or the vicinity thereof. It has a letter shape. The sealing body 30 of the female connector 3 of the third embodiment is longer than that of the first embodiment, and as a result, the protrusion 335 projects downward from the tip of the female member 11. Two grooves 332 (one groove 332 is not visible in FIG. 6A) along the longitudinal direction of the sealing body 30 (the direction of the central axis 1a) are provided on the outer peripheral surface of the sealing body 30. The grooves 332 are arranged at equal intervals in the circumferential direction.
　図６Ｂに示されているように、キャップ３８０の管状部８１の内周面に、互いに対向する一対の第１突起３８７と、互いに対向する一対の第２突起３８８（図６Ｂでは、一方の突起３８８のみが示されている）とが設けられている。一対の第１突起３８７が対向する方向と一対の第２突起３８８が対向する方向とは略垂直である。第２突起３８８は、第１突起３８７よりも下側に設けられている。また、挿入部８１の内周面には、その長手方向に沿った２本のリブ状の突起（第３突起）３８２が設けられている（図６Ｂでは、一方の突起３８２のみが示されている）。突起３８２は、周方向に等間隔で配置されている。キャップ３８０の内壁８５の内周面には、実施形態１，２では設けられていた環状リブ８６が設けられていない。 6B, on the inner peripheral surface of the tubular portion 81 of the cap 380, a pair of first protrusions 387 facing each other and a pair of second protrusions 388 facing each other (one protrusion in FIG. 6B). Only 388 is shown). The direction in which the pair of first protrusions 387 face each other and the direction in which the pair of second protrusions 388 face each other are substantially perpendicular. The second protrusion 388 is provided below the first protrusion 387. In addition, two rib-shaped protrusions (third protrusions) 382 along the longitudinal direction are provided on the inner peripheral surface of the insertion portion 81 (only one protrusion 382 is shown in FIG. 6B). ) The protrusions 382 are arranged at equal intervals in the circumferential direction. The annular rib 86 provided in the first and second embodiments is not provided on the inner peripheral surface of the inner wall 85 of the cap 380.
　図７Ａ及び図７Ｂは、キャップ３８０が装着されたメスコネクタ３の断面図である。図７Ａに示されているように、キャップ３８０の第１突起３８７が封止体３０の側方突起３３７よりも上側に位置し、両者は上下方向に係合している。このため、キャップ３８０は環状リブ８６を備えていないにも関わらず、重力や軽振動によってメス部材１１から脱落することはない。 7A and 7B are cross-sectional views of the female connector 3 to which the cap 380 is attached. As shown in FIG. 7A, the first protrusion 387 of the cap 380 is positioned above the side protrusion 337 of the sealing body 30, and both are engaged in the vertical direction. For this reason, although the cap 380 is not provided with the annular rib 86, it does not fall off from the female member 11 due to gravity or light vibration.
　図７Ｂに示されているように、メスコネクタ３の封止体３０の外周面に形成された２つの溝３３２（図６Ａ参照）にキャップ３８０の挿入部８１の内周面から突出した２つの突起３８２（図６Ｂ参照）が嵌入し係合している。また、図６Ａ及び図６Ｂから理解できるように、側方突起３３７が第２突起３８８に周方向に係合する。このため、封止体３０に対してキャップ３８０を相対的に回転させることができない。 As shown in FIG. 7B, the two grooves 332 (see FIG. 6A) formed on the outer peripheral surface of the sealing body 30 of the female connector 3 are protruded from the inner peripheral surface of the insertion portion 81 of the cap 380. A protrusion 382 (see FIG. 6B) is fitted and engaged. Further, as can be understood from FIGS. 6A and 6B, the side protrusion 337 engages with the second protrusion 388 in the circumferential direction. For this reason, the cap 380 cannot be rotated relative to the sealing body 30.
　突起３３５を備えたメスコネクタ３は、例えば二色成形により全体を一部品として一体的に製造することができる。具体的には、一次金型にて突起３３５を成形し、突起３３５を収納した二次金型にて突起３３５を備えたメスコネクタ３を成形することができる。側方突起３３７と第１突起３８７とは、メスコネクタ３及びキャップ３８０をそれぞれ別々に製造した後、キャップ３８０をメスコネクタ３に向かって押し込むことにより係合させることができる。 The female connector 3 provided with the protrusion 335 can be integrally manufactured as a whole by, for example, two-color molding. Specifically, the protrusion 335 can be formed by a primary mold, and the female connector 3 provided with the protrusion 335 can be formed by a secondary mold that houses the protrusion 335. The lateral protrusion 337 and the first protrusion 387 can be engaged by manufacturing the female connector 3 and the cap 380 separately and then pushing the cap 380 toward the female connector 3.
　実施形態１，２と同様に、本実施形態３においても、メス部材１１に対してキャップ３８０を回転させると、キャップ３８０に加えられた回転力が、突起３８２及び溝３３２と、第２突起３８８及び側方突起３３７とを介して封止体３０に伝達され、薄肉部１４が破断され、封止体３０が径小部１３から分離される。封止体３０が取り除かれたメスコネクタ３は、封止体３０が取り除かれた実施形態１のメスコネクタ１と実質的に同じである。実施形態１と同様に、メスコネクタ３にオスコネクタ１００を接続することができる（図３参照）。 Similar to the first and second embodiments, also in the third embodiment, when the cap 380 is rotated with respect to the female member 11, the rotational force applied to the cap 380 causes the protrusion 382, the groove 332, and the second protrusion 388. And the side projections 337 are transmitted to the sealing body 30, the thin portion 14 is broken, and the sealing body 30 is separated from the small-diameter portion 13. The female connector 3 from which the sealing body 30 has been removed is substantially the same as the female connector 1 of the first embodiment from which the sealing body 30 has been removed. As in the first embodiment, the male connector 100 can be connected to the female connector 3 (see FIG. 3).
　本実施形態３では、封止体３０の側方突起３３７がキャップ３８０の第１突起３８７に上下方向に係合するので、封止体３０をキャップ３８０から分離させることができない。従って、メスコネクタ３に対してキャップ３８０を回転させて薄肉部１４を破断した後、キャップ３８０をメス部材１１から分離すると、封止体３０は挿入部８１内に収納された状態でキャップ３８０とともにメス部材１１から取り出される。このため、分離された封止体３０が脱落したり紛失したりすることがない。 In the third embodiment, the side protrusions 337 of the sealing body 30 engage with the first protrusions 387 of the cap 380 in the vertical direction, and therefore the sealing body 30 cannot be separated from the cap 380. Accordingly, when the cap 380 is rotated with respect to the female connector 3 to break the thin portion 14 and then the cap 380 is separated from the female member 11, the sealing body 30 is housed in the insertion portion 81 together with the cap 380. The female member 11 is taken out. For this reason, the separated sealing body 30 is not dropped or lost.
　上記の例では、封止体３０及びキャップ３８０に設けられる、互いに係合し合う係合構造として、封止体３０に溝３３２及び突起３３５が設けられ、キャップ３８０に突起３８２，３８７，３８８が設けられていた。キャップ３８０に加えられる回転力を封止体３０に伝達する係合構造として、突起３８２及び溝３３２の組み合わせと、第２突起３８８及び側方突起３３７の組み合わせとが設けられていたが、いずれか一方（例えば突起３８２及び溝３３２）を省略してもよい。また、回転力を封止体３０に伝達する係合構造は、本実施形態の構成に限定されず、実施形態１，２で説明したように任意である。キャップ３８０と封止体３０とを中心軸１ａ方向に係合させる係合構造は、第１突起３８７及び側方突起３３７に限定されず、任意に変更しうる。キャップ３８０に加えられる回転力を封止体３０に伝達する係合構造と、キャップ３８０と封止体３０とを中心軸１ａ方向に係合させる係合構造とが、共通する部材で構成されてもよいし、互いに独立した別個の部材で構成されてもよい。 In the above example, as the engaging structure provided on the sealing body 30 and the cap 380 to engage with each other, the groove 332 and the protrusion 335 are provided on the sealing body 30, and the protrusions 382, 387, and 388 are provided on the cap 380. It was provided. As an engagement structure for transmitting the rotational force applied to the cap 380 to the sealing body 30, a combination of the protrusion 382 and the groove 332 and a combination of the second protrusion 388 and the side protrusion 337 are provided. One (for example, the protrusion 382 and the groove 332) may be omitted. Further, the engagement structure for transmitting the rotational force to the sealing body 30 is not limited to the configuration of the present embodiment, and is arbitrary as described in the first and second embodiments. The engagement structure for engaging the cap 380 and the sealing body 30 in the direction of the central axis 1a is not limited to the first protrusion 387 and the side protrusion 337, and can be arbitrarily changed. The engaging structure for transmitting the rotational force applied to the cap 380 to the sealing body 30 and the engaging structure for engaging the cap 380 and the sealing body 30 in the direction of the central axis 1a are configured by a common member. Alternatively, they may be composed of separate members independent of each other.
　本実施形態３は、上記を除いて実施形態１，２と同様である。実施形態１，２の説明が本実施形態３にも適用される。 The third embodiment is the same as the first and second embodiments except for the above. The description of the first and second embodiments also applies to the third embodiment.
　（実施形態４）
　図８Ａは、本発明の実施形態４に係るメスコネクタ４及びキャップ４８０の下方から見た分解斜視図であり、図８Ｂは、メスコネクタ４及びキャップ４８０の上方から見た分解斜視図である。図８Ｃは、メスコネクタ４及びキャップ４８０の、中心軸１ａを含む一平面に沿った分解断面図、図８Ｄは、メスコネクタ４及びキャップ４８０の、中心軸１ａを含む別の一平面に沿った分解断面図である。図８Ｄの断面は、図８Ｃの断面と直交する。図８Ｅは、メスコネクタ４の、先端側から見た断面斜視図である。図８Ｅの断面は、図８Ｄの断面と同じである。実施形態１との相違点を中心に、本実施形態４を説明する。 (Embodiment 4)
8A is an exploded perspective view of the female connector 4 and the cap 480 according to Embodiment 4 of the present invention as viewed from below, and FIG. 8B is an exploded perspective view of the female connector 4 and the cap 480 as viewed from above. 8C is an exploded sectional view of the female connector 4 and the cap 480 along one plane including the central axis 1a, and FIG. 8D is a sectional view of the female connector 4 and the cap 480 along another plane including the central axis 1a. FIG. The cross section of FIG. 8D is orthogonal to the cross section of FIG. 8C. FIG. 8E is a cross-sectional perspective view of the female connector 4 as seen from the distal end side. The cross section of FIG. 8E is the same as the cross section of FIG. 8D. The fourth embodiment will be described focusing on the differences from the first embodiment.
　実施形態１～３では、封止体３０は、メスコネクタの径小部１３に対してメス部材１１と同じ側に配置されていた。これに対して、本実施形態４では、図８Ｃ～図８Ｅに示されているように、封止体４３０は、径小部１３に対してメス部材１１とは反対側に、溶着部５０内の流路５２に向かって突出するように配置されている。封止体４３０は、全体として略円柱形状または略円板形状を有する。薄肉部４１４が、径小部１３の円形の端縁と、封止体４３０の径小部１３側の円形の端縁との間を封止するように、環状に連続している。この結果、径小部１３の開口は、封止体４３０により封止されている。図８Ｅに示されているように、封止体４３０の径小部１３側の面には、凹部４３２が設けられている。凹部４３２は、半円柱形状の窪みである。 In Embodiments 1 to 3, the sealing body 30 is disposed on the same side as the female member 11 with respect to the small-diameter portion 13 of the female connector. On the other hand, in the fourth embodiment, as shown in FIGS. 8C to 8E, the sealing body 430 is disposed on the side opposite to the female member 11 with respect to the small-diameter portion 13 in the welded portion 50. It arrange | positions so that it may protrude toward the flow path 52 of this. The sealing body 430 has a substantially cylindrical shape or a substantially disc shape as a whole. The thin portion 414 is continuous in an annular shape so as to seal between the circular end edge of the small diameter portion 13 and the circular end edge of the sealing body 430 on the small diameter portion 13 side. As a result, the opening of the small diameter portion 13 is sealed by the sealing body 430. As shown in FIG. 8E, a recess 432 is provided on the surface of the sealing body 430 on the small diameter portion 13 side. The recess 432 is a semi-cylindrical recess.
　図８Ｂ～図８Ｄに示されているように、キャップ４８０は、内壁８５内に、内壁８５と同軸の挿入部４８１を備える。実施形態１～３の挿入部８１の先端は、封止体３０を挿入することができるように開口していたが、本実施形態４の挿入部４８１の先端には開口は設けられていない。挿入部４８１は、底板８９から順に、基台部４８３と、基台部４８３より小径の小径先端部４８４とを備える。小径先端部４８３の先端から、半円柱形状の凸部４８２が突出している。凸部４８２は、外壁８８及び内壁８５よりも上側（図８Ｃ、図８Ｄにおいてメスコネクタ４側）に突出している。 8B to 8D, the cap 480 includes an insertion portion 481 coaxial with the inner wall 85 in the inner wall 85. As shown in FIG. The distal end of the insertion portion 81 in the first to third embodiments is opened so that the sealing body 30 can be inserted, but the distal end of the insertion portion 481 in the fourth embodiment is not provided with an opening. The insertion portion 481 includes, in order from the bottom plate 89, a base portion 483 and a small-diameter tip portion 484 having a smaller diameter than the base portion 483. A semi-cylindrical convex portion 482 protrudes from the tip of the small diameter tip portion 483. The convex portion 482 protrudes above the outer wall 88 and the inner wall 85 (on the female connector 4 side in FIGS. 8C and 8D).
　図９Ａ及び図９Ｂは、キャップ４８０が装着されたメスコネクタ４の断面図である。メスコネクタ４のメス部材１１及び径小部１３内に、キャップ４８０の基台部４８３及び小径先端部４８４がそれぞれ挿入されている。封止体４３０の凹部４３２内にキャップ４８０の凸部４８２が嵌入している。凹部４３２及び凸部４８２は、いずれも上述したように半円柱形状を有する。このため、封止体４３０に対してキャップ４８０を相対的に回転させることができない。 9A and 9B are cross-sectional views of the female connector 4 to which the cap 480 is attached. The base portion 483 and the small diameter tip portion 484 of the cap 480 are inserted into the female member 11 and the small diameter portion 13 of the female connector 4, respectively. A convex portion 482 of the cap 480 is fitted in the concave portion 432 of the sealing body 430. The concave portion 432 and the convex portion 482 each have a semi-cylindrical shape as described above. For this reason, the cap 480 cannot be rotated relative to the sealing body 430.
　実施形態１と同様に、本実施形態４においても、メス部材１１に対してキャップ４８０を回転させると、キャップ４８０に加えられた回転力が、凸部４８２及び凹部４３２を介して封止体４３０に伝達され、薄肉部４１４が破断され、封止体４３０が径小部１３から分離される。封止体４３０が取り除かれたメスコネクタ４は、封止体３０が取り除かれた実施形態１のメスコネクタ１と実質的に同じである。実施形態１と同様に、メスコネクタ４にオスコネクタ１００を接続することができる（図３参照）。 Similarly to the first embodiment, also in the fourth embodiment, when the cap 480 is rotated with respect to the female member 11, the rotational force applied to the cap 480 is transmitted through the convex portion 482 and the concave portion 432 to the sealing body 430. , The thin portion 414 is broken, and the sealing body 430 is separated from the small diameter portion 13. The female connector 4 from which the sealing body 430 has been removed is substantially the same as the female connector 1 of the first embodiment from which the sealing body 30 has been removed. As in the first embodiment, the male connector 100 can be connected to the female connector 4 (see FIG. 3).
　以上のように、径小部１３を封止する封止体４３０が、径小部１３に対してメス部材１１とは反対側に配置されていても、薄肉部４１４を破断して封止体４３０を径小部１３から分離させることにより、径小部１３を開口させることができる。 As described above, even if the sealing body 430 that seals the small-diameter portion 13 is disposed on the side opposite to the female member 11 with respect to the small-diameter portion 13, the thin-walled portion 414 is broken to form a sealing body. By separating 430 from the small-diameter portion 13, the small-diameter portion 13 can be opened.
　封止体４３０は、径小部１３よりも更に深い位置にあるので、メス部材１１側から封止体４３０にアクセスすることは困難である。このため、メスコネクタ４が周辺物に衝突したり、作業者がメスコネクタ４に触れたりしても、封止体４３０に外力が加えられる可能性はほとんどない。このため、外力によって薄肉部４１４が意図せずにひび割れや破断して、液状物が漏れ出したり、バッグ内へ菌が侵入したりするという事態が起こる可能性は低い。 Since the sealing body 430 is at a deeper position than the small diameter portion 13, it is difficult to access the sealing body 430 from the female member 11 side. For this reason, even if the female connector 4 collides with a peripheral object or an operator touches the female connector 4, there is almost no possibility that an external force is applied to the sealing body 430. For this reason, it is unlikely that the thin-walled portion 414 is unintentionally cracked or broken by an external force, so that a liquid material leaks out or bacteria enter the bag.
　その一方で、メスコネクタ４は比較的容易に開口させることができる。例えば、図９Ａ及び図９Ｂに示したようにメス部材１１にキャップ４８０を装着した状態で、実施形態１～３と同様に、キャップ４８０をメスコネクタ４に対して回転させれば、メスコネクタ４を開口させることができる。あるいは、メス部材１１にキャップ４８０を装着していない状態で、メス部材１１に棒を挿入し、その先端を封止体４３０に突き当てた状態で、棒をメス部材１１内に単に押し込むだけでも、メスコネクタ４を開口させることができる。実施形態１～３とは異なり、本実施形態４では、封止体４３０は、径小部１３で囲まれた開口内に位置しているので、棒の先端を封止体４３０に位置ズレすることなく押し当てるのが容易である。 On the other hand, the female connector 4 can be opened relatively easily. For example, when the cap 480 is rotated with respect to the female connector 4 in the state where the cap 480 is attached to the female member 11 as shown in FIGS. 9A and 9B, the female connector 4 Can be opened. Alternatively, when the cap 480 is not attached to the female member 11, the rod is inserted into the female member 11, and the rod is simply pushed into the female member 11 with its tip abutted against the sealing body 430. The female connector 4 can be opened. Unlike the first to third embodiments, in the fourth embodiment, the sealing body 430 is located in the opening surrounded by the small-diameter portion 13, so that the tip of the rod is displaced from the sealing body 430. It is easy to press without.
　封止体４３０及びキャップ４８０に設けられる、互いに係合し合う係合構造は、半円柱形状の凹部４３２及び凸部４８２に限定されず、実施形態１で説明したように任意である。封止体４３０に設けられる係合構造は、凹部に限定されず、メス部材１１側に突出していてもよい。実施形態１，２で説明したように、本実施形態４において、互いに係合し合う係合構造（凹部４３２及び凸部４８２）を省略してもよい。 The engaging structure provided in the sealing body 430 and the cap 480 that engage with each other is not limited to the semi-cylindrical concave portion 432 and the convex portion 482, and is arbitrary as described in the first embodiment. The engagement structure provided in the sealing body 430 is not limited to the recess, and may protrude toward the female member 11 side. As described in the first and second embodiments, in the fourth embodiment, the engaging structures (the concave portion 432 and the convex portion 482) that engage with each other may be omitted.
　本実施形態４は、上記を除いて実施形態１と同様である。実施形態１の説明が本実施形態４にも適用される。 Embodiment 4 is the same as Embodiment 1 except for the above. The description of the first embodiment is also applied to the fourth embodiment.
　（実施形態５）
　図１０Ａは、本発明の実施形態５に係るメスコネクタ５及びキャップ５８０の下方から見た分解斜視図、図１０Ｂは、メスコネクタ５及びキャップ５８０の上方から見た分解斜視図である。図１０Ｃは、メスコネクタ５及びキャップ５８０の、中心軸（図示せず）を含む一平面に沿って切断された分解断面斜視図、図１０Ｄは、メスコネクタ５及びキャップ５８０の、中心軸（図示せず）を含む別の一平面に沿って切断された分解断面斜視図である。図１０Ｄの断面は、図１０Ｃの断面と直交する。実施形態１～４との相違点を中心に、本実施形態５を説明する。 (Embodiment 5)
10A is an exploded perspective view of the female connector 5 and the cap 580 according to Embodiment 5 of the present invention as seen from below, and FIG. 10B is an exploded perspective view of the female connector 5 and the cap 580 as seen from above. 10C is an exploded cross-sectional perspective view of the female connector 5 and the cap 580 taken along a plane including a central axis (not shown), and FIG. 10D is a central axis (figure of the female connector 5 and the cap 580). It is a disassembled cross-sectional perspective view cut | disconnected along another 1 plane containing not shown. The cross section of FIG. 10D is orthogonal to the cross section of FIG. 10C. The fifth embodiment will be described focusing on the differences from the first to fourth embodiments.
　図１０Ｃ及び図１０Ｄに示されているように、メスコネクタ５は、中空円筒形状を有する内筒５２１を備える。内筒５２１は、メス部材１１の基端の、内径が相対的に小さい径小部１３に設けられている。内筒５２１は、径小部１３に対してメス部材１１と同じ側に、メス部材１１に取り囲まれるように配置されている。内筒５２１とメス部材１１とは、同軸に配置され、半径方向に離間している。内筒５２１の外周面５２２には、先端に近づくにしたがって外径が小さくなるテーパ面（いわゆるオステーパ面）が設けられている。内筒５２１には、内筒５２１の長手方向に沿った流路５２３が設けられている。流路５２３は、径小部１３と連通している。 10C and 10D, the female connector 5 includes an inner cylinder 521 having a hollow cylindrical shape. The inner cylinder 521 is provided in the small diameter portion 13 having a relatively small inner diameter at the proximal end of the female member 11. The inner cylinder 521 is disposed on the same side as the female member 11 with respect to the small-diameter portion 13 so as to be surrounded by the female member 11. The inner cylinder 521 and the female member 11 are disposed coaxially and are spaced apart in the radial direction. The outer peripheral surface 522 of the inner cylinder 521 is provided with a tapered surface (so-called male tapered surface) whose outer diameter decreases as it approaches the tip. The inner cylinder 521 is provided with a flow path 523 along the longitudinal direction of the inner cylinder 521. The flow path 523 communicates with the small diameter portion 13.
　封止体５３０が、薄肉部５１４を介して内筒５２１の先端に接続されている。封止体５３０は、全体として略円柱形状を有する。封止体５３０は、内筒５２１の先端からメス部材１１の先端側に向かって延びている。封止体５３０は、メス部材１１と同軸であり、メス部材１１の内周面１２から半径方向に離間している。薄肉部５１４は、内筒５２１の先端の、流路５２３を取り囲む円形の端縁と、封止体５３０の内筒５２１側の円形の端縁との間を封止するように、環状に連続している。この結果、内筒５２１の流路５２３の先端側の開口は、封止体５３０により封止されている。薄肉部５１４は、その近傍の内筒５２１、メス部材１１、封止体５３０のいずれよりも薄く、その結果、相対的に機械的強度が低下した弱化部である。 The sealing body 530 is connected to the tip of the inner cylinder 521 through the thin portion 514. The sealing body 530 has a substantially cylindrical shape as a whole. The sealing body 530 extends from the distal end of the inner cylinder 521 toward the distal end side of the female member 11. The sealing body 530 is coaxial with the female member 11 and is spaced apart from the inner peripheral surface 12 of the female member 11 in the radial direction. The thin portion 514 is annularly continuous so as to seal between the circular edge surrounding the flow path 523 and the circular edge on the inner cylinder 521 side of the sealing body 530 at the tip of the inner cylinder 521. is doing. As a result, the opening on the distal end side of the flow path 523 of the inner cylinder 521 is sealed by the sealing body 530. The thin portion 514 is a weakened portion that is thinner than any of the inner cylinder 521, the female member 11, and the sealing body 530 in the vicinity thereof, and as a result, has a relatively low mechanical strength.
　封止体５３０は、メス部材１１の先端よりも下方に突出している。封止体５３０の先端又はその近傍から、一対の側方突起５３７が、半径方向に沿って外向きに突出している。封止体５３０及び一対の側方突起５３７は、全体とし略Ｔ字形状を有している。 The sealing body 530 protrudes downward from the tip of the female member 11. A pair of side protrusions 537 protrude outward along the radial direction from the tip of the sealing body 530 or the vicinity thereof. The sealing body 530 and the pair of side protrusions 537 have a substantially T shape as a whole.
　メス部材１１の内周面５１２は、実施形態１～４の内周面１２及び図１３Ａ及び図１３Ｂに示すメスコネクタ９１０の内周面９１２よりわずかに大きな内径を有する円筒面又はメステーパ面である。 The inner peripheral surface 512 of the female member 11 is a cylindrical surface or a female tapered surface having an inner diameter slightly larger than the inner peripheral surface 12 of the first to fourth embodiments and the inner peripheral surface 912 of the female connector 910 shown in FIGS. 13A and 13B. .
　キャップ５８０の管状部８１の内周面に、互いに対向する一対の第１突起５８７と、互いに対向する一対の第２突起５８８とが設けられている。一対の第１突起５８７が対向する方向と一対の第２突起５８８が対向する方向とは略垂直である。第２突起５８８は、第１突起５８７に対して上側から下側へ、上下方向に沿って延びている。 A pair of first protrusions 587 facing each other and a pair of second protrusions 588 facing each other are provided on the inner peripheral surface of the tubular portion 81 of the cap 580. The direction in which the pair of first protrusions 587 face each other is substantially perpendicular to the direction in which the pair of second protrusions 588 face each other. The second protrusion 588 extends along the vertical direction from the upper side to the lower side with respect to the first protrusion 587.
　図１１Ａ及び図１１Ｂは、キャップ５８０が装着されたメスコネクタ５の断面図である。図１１Ａ及び図１１Ｂの断面は、図１０Ｃ及び図１０Ｄの断面とそれぞれ同じである。図１１Ａに示されているように、キャップ５８０の第１突起５８７が封止体５３０の側方突起５３７よりも上側に位置し、両者は上下方向に係合している。 11A and 11B are cross-sectional views of the female connector 5 to which the cap 580 is attached. The cross sections of FIGS. 11A and 11B are the same as the cross sections of FIGS. 10C and 10D, respectively. As shown in FIG. 11A, the first protrusion 587 of the cap 580 is positioned above the side protrusion 537 of the sealing body 530, and both are engaged in the up-down direction.
　図１０Ｃ、図１０Ｄ、図１１Ａから理解できるように、側方突起５３７が第２突起５８８に周方向に係合する。このため、封止体５３０に対してキャップ５８０を相対的に回転させることができない。 As can be understood from FIGS. 10C, 10D, and 11A, the side protrusion 537 engages with the second protrusion 588 in the circumferential direction. For this reason, the cap 580 cannot be rotated relative to the sealing body 530.
　側方突起５３７を備えたメスコネクタ５は、例えば二色成形により全体を一部品として一体的に製造することができる。具体的には、一次金型にて側方突起５３７及び封止体５３０の先端側の一部を一体的に成形し、側方突起５３７及び封止体５３０の一部を収納した二次金型にてメスコネクタ３を成形することができる。側方突起５３７と第１突起５８７とは、メスコネクタ５及びキャップ５８０をそれぞれ別々に製造した後、キャップ５８０をメスコネクタ５に向かって押し込むことにより係合させることができる。 The female connector 5 provided with the side projections 537 can be integrally manufactured as a whole by, for example, two-color molding. Specifically, a secondary mold in which the side protrusion 537 and a part of the front end side of the sealing body 530 are integrally formed with a primary mold, and the side protrusion 537 and a part of the sealing body 530 are accommodated. The female connector 3 can be formed with a mold. The lateral protrusion 537 and the first protrusion 587 can be engaged by manufacturing the female connector 5 and the cap 580 separately and then pushing the cap 580 toward the female connector 5.
　実施形態１～４と同様に、本実施形態５においても、メス部材１１に対してキャップ５８０を回転させると、キャップ５８０に加えられた回転力が、第２突起５８８及び側方突起５３７を介して封止体５３０に伝達され、薄肉部５１４が破断され、封止体５３０が内筒５２１から分離される。内筒５２１の流路５２３が開口される。 Similar to the first to fourth embodiments, in the fifth embodiment, when the cap 580 is rotated with respect to the female member 11, the rotational force applied to the cap 580 is passed through the second protrusion 588 and the side protrusion 537. Is transmitted to the sealing body 530, the thin portion 514 is broken, and the sealing body 530 is separated from the inner cylinder 521. The flow path 523 of the inner cylinder 521 is opened.
　その後、メスコネクタ５にオスコネクタ１００が接続される。図１２は、オスコネクタ１００が接続されたメスコネクタ５の断面図である。図１２のメスコネクタ５は、薄肉部５１４が破断され、封止体５３０が取り除かれている点を除いて、図１０Ａ～図１０Ｄに示したメスコネクタ５と同じである。 Thereafter, the male connector 100 is connected to the female connector 5. FIG. 12 is a cross-sectional view of the female connector 5 to which the male connector 100 is connected. The female connector 5 in FIG. 12 is the same as the female connector 5 shown in FIGS. 10A to 10D except that the thin-walled portion 514 is broken and the sealing body 530 is removed.
　メスコネクタ５の内筒５２１が、オスコネクタ１００のオス部材９２１に挿入されている。上述したように、内筒５２１の外周面５２２には先細のオステーパ面が設けられている。外周面５２２のオステーパ面の先端側での最小外径は、オス部材９２１の流路９２７を規定する内周面９２８の先端側での内径より小さく、且つ、外周面５２２のオステーパ面の基端側での最大外径は、オス部材９２１の内周面９２８の前記内径より大きい。従って、内筒５２１のオステーパ面とオス部材９２１の内周面９２８とが嵌合し、両者間に液密なシール５２９が形成される。この結果、内筒５２１とオス部材９２１とは液密に連通される。 The inner cylinder 521 of the female connector 5 is inserted into the male member 921 of the male connector 100. As described above, the outer peripheral surface 522 of the inner cylinder 521 is provided with a tapered male taper surface. The minimum outer diameter on the distal end side of the male tapered surface of the outer peripheral surface 522 is smaller than the inner diameter on the distal end side of the inner peripheral surface 928 defining the flow path 927 of the male member 921 and the proximal end of the male tapered surface of the outer peripheral surface 522 The maximum outer diameter on the side is larger than the inner diameter of the inner peripheral surface 928 of the male member 921. Accordingly, the male tapered surface of the inner cylinder 521 and the inner peripheral surface 928 of the male member 921 are fitted, and a liquid-tight seal 529 is formed between them. As a result, the inner cylinder 521 and the male member 921 are in fluid-tight communication.
　メスコネクタ５のメス部材１１にオスコネクタ１００のオス部材９２１が挿入され、且つ、螺状突起１５に雌ネジ９２５が螺合されている。互いに螺合する螺状突起１５及び雌ネジ９２５は、メスコネクタ５とオスコネクタ１００との接続状態をロックするためのネジロック機構を構成する。本実施形態５ではメス部材１１の内周面５１２は、実施形態１～４の内周面１２より大きな内径を有するので、内周面５１２とオス部材９２１の外周面９２２とは半径方向に離間している。 The male member 921 of the male connector 100 is inserted into the female member 11 of the female connector 5, and the female screw 925 is screwed into the screw-shaped protrusion 15. The screw-like protrusion 15 and the female screw 925 that are screwed together constitute a screw lock mechanism for locking the connection state between the female connector 5 and the male connector 100. In the fifth embodiment, since the inner peripheral surface 512 of the female member 11 has a larger inner diameter than the inner peripheral surface 12 of the first to fourth embodiments, the inner peripheral surface 512 and the outer peripheral surface 922 of the male member 921 are separated in the radial direction. is doing.
　バッグに貯留された液状物は、メスコネクタ５の流路５２、径小部１３、内筒５２１の流路５２３、オス部材９２１の流路９２７を順に通って、投与セット（図示せず）へ流れる。 The liquid substance stored in the bag passes through the flow path 52 of the female connector 5, the small diameter portion 13, the flow path 523 of the inner cylinder 521, and the flow path 927 of the male member 921 to the administration set (not shown). Flowing.
　以上のように、本実施形態５のメスコネクタ５は、メス部材１１内に、メス部材１１と同軸の内筒５２１と、内筒５２１の流路５２３を封止する封止体５３０とを備える。メスコネクタ５を、液状物を貯留したバッグに取り付けて、ＲＴＨ製剤を構成することができる。液状物を患者に投与する直前にメスコネクタ５から封止体５３０を取り除き、次いでメスコネクタ５に、投与セットの上流端に設けられたオスコネクタ１００を接続することができる。 As described above, the female connector 5 of the fifth embodiment includes the inner cylinder 521 coaxial with the female member 11 and the sealing body 530 that seals the flow path 523 of the inner cylinder 521 in the female member 11. . The female connector 5 can be attached to a bag in which a liquid material is stored to constitute an RTH preparation. The seal 530 can be removed from the female connector 5 immediately before the liquid is administered to the patient, and then the male connector 100 provided at the upstream end of the administration set can be connected to the female connector 5.
　封止体５３０は、内筒５２１の流路５２３を封止するように設けられている。このため、径小部１３を封止するように封止体３０を設けた実施形態１～４と同様に、封止体５３０を内筒５２１から取り除かない限り、バッグ内の液状物は、メス部材１１の内周面５１２に付着しない。 The sealing body 530 is provided so as to seal the flow path 523 of the inner cylinder 521. Therefore, as in the first to fourth embodiments in which the sealing body 30 is provided so as to seal the small-diameter portion 13, unless the sealing body 530 is removed from the inner cylinder 521, the liquid in the bag is It does not adhere to the inner peripheral surface 512 of the member 11.
　内周面５１２に液状物が付着していると、メス部材１１にオス部材９２１を挿入したときに、内周面５１２に付着していた液状物がメス部材１１からあふれ出し、オス部材９２１と外筒９２３との間の隙間９２６に流れ込んだり、内周面５１２に付着していた液状物が、オスコネクタ１００をメスコネクタ５から分離後に、オス部材９２１の外周面９２２に転着したりする。このため、オスコネクタ１００（特にオスコネクタ本体部１２０の隙間９２６）は不衛生状態に至りやすい。 When the liquid material adheres to the inner peripheral surface 512, when the male member 921 is inserted into the female member 11, the liquid material attached to the inner peripheral surface 512 overflows from the female member 11, and the male member 921 and The liquid material that has flowed into the gap 926 between the outer cylinder 923 or attached to the inner peripheral surface 512 is transferred to the outer peripheral surface 922 of the male member 921 after the male connector 100 is separated from the female connector 5. . For this reason, the male connector 100 (particularly the gap 926 of the male connector main body 120) is likely to be in an unsanitary state.
　本実施形態５では、メス部材１１の内周面５１２に液状物が付着しないので、上記の問題が生じる可能性は低い。即ち、内筒５２１の流路５２３を封止する封止体５３０は、オスコネクタ１００の隙間９２６を良好な衛生状態に維持するのに有利である。 In the fifth embodiment, since the liquid material does not adhere to the inner peripheral surface 512 of the female member 11, the possibility of the above problem occurring is low. That is, the sealing body 530 that seals the flow path 523 of the inner cylinder 521 is advantageous for maintaining the gap 926 of the male connector 100 in a good sanitary state.
　メス部材１１にオス部材９２１を挿入したとき、内筒５２１とオス部材９２１とが連通し、且つ、内筒５２１とオス部材９２１との間に液密なシール５２９が形成される。シール５２９は、液状物が、メス部材１１の内周面５１２やオス部材９２１の外周面９２２へ流れるのを抑える。これは、オスコネクタ１００の隙間９２６を良好な衛生状態に維持するのに有利である。 When the male member 921 is inserted into the female member 11, the inner cylinder 521 and the male member 921 communicate with each other, and a liquid-tight seal 529 is formed between the inner cylinder 521 and the male member 921. The seal 529 prevents the liquid material from flowing to the inner peripheral surface 512 of the female member 11 and the outer peripheral surface 922 of the male member 921. This is advantageous for maintaining the gap 926 of the male connector 100 in good sanitary condition.
　液密なシール５２９は、内筒５２１の外周面５２２とオス部材９２１の内周面９２８との間に形成される。これは、簡単な構成で液密なシールを形成するのに有利である。この場合、内筒５２１の外周面５２２がオステーパ面を有していることは、内筒５２１の外周面５２２とオス部材９２１の内周面９２８との間に液密なシール５２９を形成するのに有利である。 The liquid-tight seal 529 is formed between the outer peripheral surface 522 of the inner cylinder 521 and the inner peripheral surface 928 of the male member 921. This is advantageous for forming a liquid tight seal with a simple construction. In this case, the fact that the outer peripheral surface 522 of the inner cylinder 521 has a male tapered surface forms a liquid-tight seal 529 between the outer peripheral surface 522 of the inner cylinder 521 and the inner peripheral surface 928 of the male member 921. Is advantageous.
　内筒５２１とオス部材９２１とが嵌合し、両者間に液密なシール５２９が形成されたとき、メス部材１１の内周面５１２とオス部材９２１の外周面９２２とは液密に嵌合せず、好ましくは半径方向に離間する。これは、内筒５２１とオス部材９２１とをシール５２９で局所的且つ確実に密着させることができるので、シール５２９の液密性を向上するのに有利である。 When the inner cylinder 521 and the male member 921 are fitted and a liquid-tight seal 529 is formed therebetween, the inner peripheral surface 512 of the female member 11 and the outer peripheral surface 922 of the male member 921 are fitted in a liquid-tight manner. Preferably spaced apart in the radial direction. This is advantageous in improving the liquid tightness of the seal 529 because the inner cylinder 521 and the male member 921 can be locally and reliably brought into close contact with the seal 529.
　但し、本実施形態５はこれに限定されず、メス部材１１に、ＩＳＯ８０３６９－３に準拠した、実施形態１～４と同じ内周面１２（図１３Ａ及び図１３Ｂに示した内周面９１２）が設けられていてもよい。この場合、シール５２９が形成されるのとほぼ同時に、メス部材１１の内周面１２とオス部材９２１の外周面９２２とが液密に嵌合し、両者間にも液密なシールが形成される。かかる構成は、メスコネクタ５とオスコネクタ１００との間に複数のシールが形成されるので、液状物の圧力が上昇した場合に、液状物がメスコネクタ５とオスコネクタ１００との間のわずかな隙間を通過して外界に漏れ出るの防ぐのに有利である。 However, the fifth embodiment is not limited to this, and the female member 11 has the same inner peripheral surface 12 as the first to fourth embodiments (the inner peripheral surface 912 shown in FIGS. 13A and 13B) in conformity with ISO 80369-3. May be provided. In this case, almost simultaneously with the formation of the seal 529, the inner peripheral surface 12 of the female member 11 and the outer peripheral surface 922 of the male member 921 are fitted in a liquid-tight manner, and a liquid-tight seal is formed between them. The In such a configuration, since a plurality of seals are formed between the female connector 5 and the male connector 100, when the pressure of the liquid material rises, the liquid material is slightly between the female connector 5 and the male connector 100. It is advantageous for preventing leakage through the gap to the outside world.
　実施形態３と同様に、封止体５３０の側方突起５３７がキャップ５８０の第１突起５８７に上下方向に係合する。従って、メスコネクタ５に対してキャップ５８０を回転させて薄肉部５１４を破断した後、キャップ５８０をメス部材１１から分離すると、封止体５３０は挿入部８１内に収納された状態でキャップ５８０とともにメス部材１１から分離される。このため、分離された封止体５３０が脱落したり紛失したりすることがない。 As in the third embodiment, the side protrusion 537 of the sealing body 530 engages with the first protrusion 587 of the cap 580 in the vertical direction. Therefore, after the cap 580 is rotated with respect to the female connector 5 to break the thin portion 514 and then the cap 580 is separated from the female member 11, the sealing body 530 is housed in the insertion portion 81 together with the cap 580. Separated from the female member 11. For this reason, the separated sealing body 530 is not dropped or lost.
　上記の実施形態５では、メスコネクタ５の内筒５２１がオスコネクタ１００のオス部材９２１に挿入された。但し、本発明はこれに限定されない。例えば、内筒５２１とオス部材９２１とを、その長手方向に突き合わせることにより、内筒５２１の先端とオス部材９２１の先端との間に液密なシールを形成してもよい。この場合、内筒５２１の内径を上記の実施形態５に比べて大きくしうるので、内筒５２１の流路５２３を流れる液状物の流動抵抗を小さくするのに有利である。 In the fifth embodiment, the inner cylinder 521 of the female connector 5 is inserted into the male member 921 of the male connector 100. However, the present invention is not limited to this. For example, a liquid-tight seal may be formed between the distal end of the inner cylinder 521 and the distal end of the male member 921 by abutting the inner cylinder 521 and the male member 921 in the longitudinal direction. In this case, the inner diameter of the inner cylinder 521 can be made larger than that in the fifth embodiment, which is advantageous in reducing the flow resistance of the liquid material flowing through the flow path 523 of the inner cylinder 521.
　上記の実施形態５において、キャップ５８０に設けられた環状リブ８６及び第１突起５８７のうちのいずれか一方を省略してもよい。この場合でも、キャップ５８０は、重力や軽振動によってメス部材１１から脱落することはない。 In the fifth embodiment, any one of the annular rib 86 and the first protrusion 587 provided on the cap 580 may be omitted. Even in this case, the cap 580 does not fall off the female member 11 due to gravity or light vibration.
　上記の例では、封止体５３０及びキャップ５８０に設けられる、互いに係合し合う係合構造として、封止体５３０に側方突起５３７が設けられ、キャップ５８０に突起５８７，５８８が設けられていた。キャップ５８０に加えられる回転力を封止体５３０に伝達する係合構造として第２突起５８８及び側方突起５３７が設けられていたが、回転力を封止体３０に伝達する係合構造は、これに限定されず、実施形態１，２で説明したように任意である。キャップ５８０と封止体５３０とを中心軸１ａ方向に係合させる係合構造は、第１突起３８７及び側方突起５３７に限定されず、任意に変更しうる。キャップ５８０に加えられる回転力を封止体５３０に伝達する係合構造と、キャップ５８０と封止体５３０とを中心軸１ａ方向に係合させる係合構造とが、共通する部材で構成されてもよいし、互いに独立した別個の部材で構成されてもよい。キャップ５８０と封止体５３０とを中心軸１ａ方向に係合させる係合構造を省略してもよい。実施形態１，２で説明したように、本実施形態５において、互いに係合し合う係合構造（側方突起５３７及び突起５８７，５８８）を省略してもよい。 In the above example, as the engaging structure provided on the sealing body 530 and the cap 580, the side projection 537 is provided on the sealing body 530, and the projections 587 and 588 are provided on the cap 580. It was. The second protrusion 588 and the side protrusion 537 are provided as the engagement structure that transmits the rotational force applied to the cap 580 to the sealing body 530. However, the engagement structure that transmits the rotational force to the sealing body 30 is as follows. The present invention is not limited to this, and is arbitrary as described in the first and second embodiments. The engagement structure for engaging the cap 580 and the sealing body 530 in the direction of the central axis 1a is not limited to the first protrusion 387 and the side protrusion 537, and can be arbitrarily changed. The engaging structure for transmitting the rotational force applied to the cap 580 to the sealing body 530 and the engaging structure for engaging the cap 580 and the sealing body 530 in the direction of the central axis 1a are configured by a common member. Alternatively, they may be composed of separate members independent of each other. The engagement structure for engaging the cap 580 and the sealing body 530 in the direction of the central axis 1a may be omitted. As described in the first and second embodiments, in the fifth embodiment, the engagement structures (the side protrusions 537 and the protrusions 587 and 588) that engage with each other may be omitted.
　封止体５３０は、メス部材１１の先端よりも下方に突出している必要はない。即ち、実施形態１の封止体３０のように、メス部材１１の先端から突出していなくてもよい。 The sealing body 530 does not need to protrude below the tip of the female member 11. That is, unlike the sealing body 30 of Embodiment 1, it does not need to protrude from the front-end | tip of the female member 11. FIG.
　封止体５３０は、内筒５２１の先端から下方に向かって延びている必要はない。例えば、封止体５３０は、内筒５２１の流路５２３内に設けられてもよいし、実施形態４の封止体４３０のように、径小部１３に対してメス部材１１とは反対側に、溶着部５０内の流路５２に向かって突出するように設けられてもよい。この場合、薄肉部５１４は、内筒５２１の流路５２３を規定する内周面の任意の位置（内筒５２１の先端から基端までの任意の位置）または径小部１３と封止体５３０とを液密に接続する。 The sealing body 530 does not need to extend downward from the tip of the inner cylinder 521. For example, the sealing body 530 may be provided in the flow path 523 of the inner cylinder 521, or the opposite side to the female member 11 with respect to the small diameter portion 13 as in the sealing body 430 of the fourth embodiment. In addition, it may be provided so as to protrude toward the flow path 52 in the welded portion 50. In this case, the thin-walled portion 514 has an arbitrary position on the inner peripheral surface that defines the flow path 523 of the inner cylinder 521 (an arbitrary position from the distal end to the proximal end of the inner cylinder 521) or the small diameter portion 13 and the sealing body 530. And are connected liquid-tightly.
　上記の実施形態１～５のメスコネクタ１～５は、液状物を貯留するバッグを構成するシートに溶着される溶着部５０を備えていたが、本発明のメスコネクタは溶着部５０及び仕切板５９を備えていなくてもよい。このような本発明のメスコネクタは、一構成例では、バッグのシートに溶着される溶着部５０を備えたポート基部に装着されて、バッグのポートを構成し、別の構成例では、柔軟なチューブの一端に設けられる。 The female connectors 1 to 5 of the first to fifth embodiments described above have the welded portion 50 that is welded to the sheet constituting the bag that stores the liquid material. However, the female connector of the present invention has the welded portion 50 and the partition plate. 59 may not be provided. In such a female connector of the present invention, in one configuration example, the female connector of the present invention is attached to a port base portion having a welded portion 50 to be welded to a bag seat to form a bag port, and in another configuration example, the flexible connector is flexible. Provided at one end of the tube.
　本発明の利用分野は、制限はなく、液状物を取り扱う任意の分野、例えば、医療、食品、化学等において広範囲に利用することができる。中でも、医療分野、特に経腸栄養において好ましく利用できる。具体的には、本発明のメスコネクタは、患者に投与する液状物を貯留した容器（バッグ）、特にＲＴＨ製剤、に設けられる注出ポートとして好ましく利用できる。 The field of use of the present invention is not limited, and can be widely used in any field that handles liquid substances, such as medical treatment, food, and chemistry. Especially, it can utilize preferably in the medical field, especially enteral nutrition. Specifically, the female connector of the present invention can be preferably used as a dispensing port provided in a container (bag) storing a liquid substance to be administered to a patient, particularly an RTH preparation.
１，２，３，４，５　メスコネクタ
１１　メス部材
１２，５１５　メス部材の内周面
１３　径小部
１４，４１４，５１４　薄肉部
３０，４３０，５３０　封止体
３２，３３５，５３７　突起（係合構造）
８０，２８０，３８０，４８０，５８０　キャップ
８１　挿入部
８２，２８２，３８２，３８７，３８８，５８７，５８８　突起（係合構造）
１００　オスコネクタ
２３２，３３２　溝（係合構造）
４３２　凹部（係合構造）
４８２　凸部（係合構造）
５２１　内筒
５２２　内筒の外周面
５２３　内筒の流路
５２９　シール
９２１　オス部材
９２２　オス部材の外周面
９２８　オス部材の内周面 1, 2, 3, 4, 5 Female connector 11 Female member 12, 515 Female member inner peripheral surface 13 Small diameter portion 14, 414, 514 Thin wall portion 30, 430, 530 Sealed body 32, 335, 537 Projection (engagement) Combined structure)
80, 280, 380, 480, 580 Cap 81 Insertion portion 82, 282, 382, 387, 388, 587, 588 Protrusion (engagement structure)
100 Male connector 232, 332 Groove (engagement structure)
432 Recess (engagement structure)
482 Convex part (engagement structure)
521 Inner cylinder 522 Inner cylinder outer peripheral surface 523 Inner cylinder flow path 529 Seal 921 Male member 922 Male member outer peripheral surface 928 Male member inner peripheral surface

Claims (15)

  1. 　筒状のオス部材を備えたオスコネクタを接続することができるメスコネクタであって、
    　中空円筒形状を有するメス部材と、
    　前記メス部材の基端に設けられ、前記メス部材の内径より小さな内径を有する径小部と、
    　環状の薄肉部を介して前記径小部に接続され、前記径小部を封止する封止体とを備え、
    　前記封止体が前記径小部から分離され、前記径小部が開口されるように、前記薄肉部は破断可能に構成されており、
    　前記メスコネクタは、前記径小部が開口された前記メスコネクタに前記オスコネクタが接続されると、前記メス部材に前記オス部材が挿入され、前記径小部は前記オス部材と連通されるように構成されていることを特徴とするメスコネクタ。     A female connector to which a male connector having a cylindrical male member can be connected,
    A female member having a hollow cylindrical shape;
    A small diameter portion provided at the proximal end of the female member, having a smaller inner diameter than the inner diameter of the female member;
    It is connected to the small diameter portion via an annular thin portion, and includes a sealing body that seals the small diameter portion,
    The thin-walled portion is configured to be breakable so that the sealing body is separated from the small-diameter portion and the small-diameter portion is opened.
    In the female connector, when the male connector is connected to the female connector in which the small-diameter portion is opened, the male member is inserted into the female member, and the small-diameter portion is communicated with the male member. A female connector characterized by being configured as described above.
  2. 　前記封止体は、前記径小部に対して前記メス部材と同じ側に配置されている請求項１に記載のメスコネクタ。 The female connector according to claim 1, wherein the sealing body is disposed on the same side as the female member with respect to the small-diameter portion.
  3. 　前記封止体は、前記径小部に対して前記メス部材とは反対側に配置されている請求項１に記載のメスコネクタ。 The female connector according to claim 1, wherein the sealing body is disposed on the opposite side to the female member with respect to the small-diameter portion.
  4. 　筒状のオス部材を備えたオスコネクタを接続することができるメスコネクタであって、
    　中空円筒形状を有するメス部材と、
    　前記メス部材と同軸に、前記メス部材に取り囲まれるように配置された、中空円筒形状を有する内筒と、
    　環状の薄肉部を介して前記内筒に接続され、前記内筒に設けられた流路を封止する封止体とを備え、
    　前記封止体が前記内筒から分離され、前記内筒の前記流路が開口されるように、前記薄肉部は破断可能に構成されており、
    　前記メスコネクタは、前記内筒の前記流路が開口された前記メスコネクタに前記オスコネクタが接続されると、前記メス部材に前記オス部材が挿入され、前記内筒は前記オス部材と連通されるように構成されていることを特徴とするメスコネクタ。     A female connector to which a male connector having a cylindrical male member can be connected,
    A female member having a hollow cylindrical shape;
    An inner cylinder having a hollow cylindrical shape, arranged coaxially with the female member and surrounded by the female member;
    A sealing body that is connected to the inner cylinder via an annular thin wall portion and seals a flow path provided in the inner cylinder;
    The thin portion is configured to be ruptured so that the sealing body is separated from the inner cylinder, and the flow path of the inner cylinder is opened.
    When the male connector is connected to the female connector in which the flow path of the inner cylinder is opened, the male member is inserted into the female member, and the inner cylinder is communicated with the male member. A female connector characterized by being configured as described above.
  5. 　前記内筒の外周面は、前記メスコネクタに前記オスコネクタが接続されたとき前記オス部材の内周面との間に液密なシールが形成されるように構成されている請求項４に記載のメスコネクタ。 The outer peripheral surface of the said inner cylinder is comprised so that a liquid-tight seal | sticker may be formed between the inner peripheral surface of the said male member when the said male connector is connected to the said female connector. Female connector.
  6. 　前記メス部材は、前記メスコネクタに前記オスコネクタが接続されたとき前記オス部材と液密に嵌合しないように構成されている請求項４又は５に記載のメスコネクタ。 The female connector according to claim 4 or 5, wherein the female member is configured not to be liquid-tightly fitted to the male member when the male connector is connected to the female connector.
  7. 　前記封止体は、前記メス部材に囲まれ且つ前記メス部材から離間して配置されている請求項１、２、４～６のいずれか一項に記載のメスコネクタ。 The female connector according to any one of claims 1, 2, and 4 to 6, wherein the sealing body is surrounded by the female member and is spaced apart from the female member.
  8. 　前記封止体は、前記メス部材の先端から突出していない請求項１、２、４～７のいずれか一項に記載のメスコネクタ。 The female connector according to any one of claims 1, 2, 4 to 7, wherein the sealing body does not protrude from a tip of the female member.
  9. 　前記封止体は、前記メス部材の先端から突出している請求項１、２、４～７のいずれか一項に記載のメスコネクタ。 The female connector according to any one of claims 1, 2, 4 to 7, wherein the sealing body protrudes from a tip of the female member.
  10. 　前記メス部材に着脱可能なキャップを更に備える請求項１～９のいずれか一項に記載のメスコネクタ。 The female connector according to any one of claims 1 to 9, further comprising a cap that is detachable from the female member.
  11. 　前記メス部材に装着された前記キャップに前記メス部材の中心軸方向の外力及び前記中心軸方向に直交する方向の外力が加えられた場合に、前記キャップが前記メス部材に対して実質的に変位しないように、または、変位した前記キャップが前記封止体に衝突しないように、前記キャップが構成されている請求項１０に記載のメスコネクタ。 When an external force in the central axis direction of the female member and an external force in a direction perpendicular to the central axis direction are applied to the cap mounted on the female member, the cap is substantially displaced with respect to the female member. The female connector according to claim 10, wherein the cap is configured so that the displaced cap does not collide with the sealing body.
  12. 　前記封止体及び前記キャップのそれぞれは、互いに係合し合う係合構造を備える請求項１０又は１１に記載のメスコネクタ。 The female connector according to claim 10 or 11, wherein each of the sealing body and the cap has an engaging structure that engages with each other.
  13. 　前記メス部材に対して前記キャップを回転させると、前記係合構造を介して回転力が前記封止体に伝達され、前記薄肉部が破断される請求項１２に記載のメスコネクタ。 The female connector according to claim 12, wherein when the cap is rotated with respect to the female member, a rotational force is transmitted to the sealing body through the engagement structure, and the thin portion is broken.
  14. 　前記キャップを前記メス部材から分離すると、前記係合構造を介して前記キャップに係合された前記封止体が前記キャップとともに前記メスコネクタから取り出される請求項１２又は１３に記載のメスコネクタ。 The female connector according to claim 12 or 13, wherein when the cap is separated from the female member, the sealing body engaged with the cap via the engagement structure is taken out from the female connector together with the cap.
  15. 　前記キャップは前記メス部材に挿入可能な挿入部を備え、
    　前記キャップの前記係合構造は、前記挿入部に設けられている請求項１２～１４のいずれか一項に記載のメスコネクタ。     The cap includes an insertion portion that can be inserted into the female member,
    The female connector according to any one of claims 12 to 14, wherein the engagement structure of the cap is provided in the insertion portion.
PCT/JP2017/034952 2016-09-28 2017-09-27 Female connector WO2018062268A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11674614B2 (en) 2020-10-09 2023-06-13 Icu Medical, Inc. Fluid transfer device and method of use for same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7188958B2 (en) * 2018-09-28 2022-12-13 日本クロージャー株式会社 Spout with cover member
JP7428543B2 (en) * 2020-03-03 2024-02-06 日本クロージャー株式会社 Spout with cover member
JP7428542B2 (en) * 2020-03-03 2024-02-06 日本クロージャー株式会社 Spout with cover member

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50149452U (en) * 1974-05-27 1975-12-11
JPH0872918A (en) * 1994-08-31 1996-03-19 Toppan Printing Co Ltd Set of tap for liquid container and cap
JPH09308694A (en) * 1996-05-22 1997-12-02 Terumo Corp Liquid duct connecting instrument
JP2002204834A (en) * 2001-01-10 2002-07-23 Toyo Seikan Kaisha Ltd Spout
JP2002210023A (en) * 2001-01-19 2002-07-30 Toyo Seikan Kaisha Ltd Catheter connection structure of container
JP2002325850A (en) * 2001-04-27 2002-11-12 Toyo Seikan Kaisha Ltd Spout
JP2010518330A (en) * 2007-02-01 2010-05-27 サン−ゴバン パフォーマンス プラスティックス コーポレイション Connector assembly
WO2012101982A1 (en) * 2011-01-25 2012-08-02 株式会社ジェイ・エム・エス Medical administering set
WO2013002320A1 (en) * 2011-06-30 2013-01-03 テルモ株式会社 Connector assembly and male connector
JP2016526950A (en) * 2013-05-28 2016-09-08 グロメリア セラピューティクス エス．アール．エル． Connected device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009120696A2 (en) * 2008-03-25 2009-10-01 Saint-Gobain Performance Plastics Corporation Connector assembly
CN107261318B (en) * 2012-02-15 2020-12-08 可得制品公司 Aseptic coupling device
JP6345391B2 (en) * 2013-06-05 2018-06-20 株式会社トップ Male connector

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50149452U (en) * 1974-05-27 1975-12-11
JPH0872918A (en) * 1994-08-31 1996-03-19 Toppan Printing Co Ltd Set of tap for liquid container and cap
JPH09308694A (en) * 1996-05-22 1997-12-02 Terumo Corp Liquid duct connecting instrument
JP2002204834A (en) * 2001-01-10 2002-07-23 Toyo Seikan Kaisha Ltd Spout
JP2002210023A (en) * 2001-01-19 2002-07-30 Toyo Seikan Kaisha Ltd Catheter connection structure of container
JP2002325850A (en) * 2001-04-27 2002-11-12 Toyo Seikan Kaisha Ltd Spout
JP2010518330A (en) * 2007-02-01 2010-05-27 サン−ゴバン パフォーマンス プラスティックス コーポレイション Connector assembly
WO2012101982A1 (en) * 2011-01-25 2012-08-02 株式会社ジェイ・エム・エス Medical administering set
WO2013002320A1 (en) * 2011-06-30 2013-01-03 テルモ株式会社 Connector assembly and male connector
JP2016526950A (en) * 2013-05-28 2016-09-08 グロメリア セラピューティクス エス．アール．エル． Connected device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11674614B2 (en) 2020-10-09 2023-06-13 Icu Medical, Inc. Fluid transfer device and method of use for same

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