WO2019225604A1 - Connecteur mâle à blocage de levier - Google Patents

Connecteur mâle à blocage de levier Download PDF

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Publication number
WO2019225604A1
WO2019225604A1 PCT/JP2019/020112 JP2019020112W WO2019225604A1 WO 2019225604 A1 WO2019225604 A1 WO 2019225604A1 JP 2019020112 W JP2019020112 W JP 2019020112W WO 2019225604 A1 WO2019225604 A1 WO 2019225604A1
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WO
WIPO (PCT)
Prior art keywords
slider
male
lever
male member
connector
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Application number
PCT/JP2019/020112
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English (en)
Japanese (ja)
Inventor
原田靖子
加藤秀俊
沖山忠
Original Assignee
株式会社ジェイ・エム・エス
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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
Publication of WO2019225604A1 publication Critical patent/WO2019225604A1/fr

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    • 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
    • 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
    • A61M39/22—Valves or arrangement of valves
    • A61M39/26—Valves closing automatically on disconnecting the line and opening on reconnection thereof

Definitions

  • the present invention relates to a male connector provided with a lock mechanism for maintaining a connection state with a female connector.
  • a connector composed of a male connector and a female connector is used to form a flow path (sometimes referred to as a “circuit”) through which various liquids such as chemicals and blood flow.
  • a male connector provided with a lock mechanism is known.
  • a lock mechanism a lever lock type is known in which a claw is provided at the tip of a lever (lock lever) that rotates (swings) elastically.
  • Patent Document 1 describes a lever-lock type male connector in which a lock lever having a cantilever support structure is disposed to face a rod-shaped male member. A claw protrudes from the tip (free end) of the lock lever toward the male member. The operation lever extends from the back surface (the side opposite to the male member) of the lock lever to the fixed end side of the lock lever.
  • the claw provided on the lock lever engages with the female connector (locked state). As long as the claw is engaged with the female connector, the connection between the male connector and the female connector is maintained. In this state, when the tip of the operation lever is pushed inward in the radial direction, the lock lever is elastically bent and deformed so that the claw is separated from the male member, and the engagement between the claw and the female connector is released (unlocked). Status). The female connector can be separated from the male connector.
  • the above-mentioned lever lock type male connector of Patent Document 1 can release the engagement of the claw with the female connector by a simple operation of pushing the operation lever inward in the radial direction. For this reason, when the male connector collides with a surrounding object or the male connector becomes a patient's underlay, the operation lever is pushed, and an accident that the female connector is unintentionally separated from the male connector occurs. there is a possibility.
  • An object of the present invention is to prevent a lock state of a lock mechanism from being unintentionally released in a male connector provided with a lever lock type lock mechanism for maintaining a connection state with a female connector.
  • the lever-locked male connector of the present invention includes a rod-shaped male member that can be inserted into and removed from the female connector, a lock lever that is disposed to face the male member, and the lock so as to protrude toward the male member.
  • the male connector further includes a slider that moves between a first position and a second position in a direction parallel to the longitudinal direction of the male member. The claw is configured to be able to engage with the female connector when the male member is inserted into the female connector and the slider is in the first position. When the slider is moved from the first position to the second position, the slider elastically bends and deforms the lock lever so that the claw is separated from the male member.
  • the claw of the lock lever engages with the female connector.
  • the lock lever provided with the claw functions as a lever lock type lock mechanism for maintaining the state where the female connector is connected to the male connector.
  • the lock state of the lock mechanism can be released by moving the slider from the first position to the second position in a direction parallel to the longitudinal direction of the male member. In normal use of the male connector, it is very unlikely that a force toward the second position is unintentionally applied to the slider in the first position. Therefore, the present invention is advantageous in preventing the lock state of the lock mechanism from being unintentionally released.
  • FIG. 1A is a perspective view of a lever-locked male connector according to an embodiment of the present invention with a slider in a first position.
  • 1B is a cross-sectional perspective view of the lever-lock male connector of FIG. 1A.
  • FIG. 2 is an exploded perspective view of the lever lock male connector according to the embodiment of the present invention.
  • FIG. 3A is a cross-sectional perspective view of a male connector body constituting a lever-locked male connector according to one embodiment of the present invention.
  • FIG. 3B is a cross-sectional view of the male connector body constituting the lever-locked male connector according to the embodiment of the present invention.
  • FIG. 4 is a perspective view of a slider constituting the lever lock male connector according to the embodiment of the present invention.
  • FIG. 5 is a cross-sectional perspective view of a male connector main body to which a slider is attached in an embodiment of the present invention.
  • FIG. 6 is a cross-sectional perspective view of a shield constituting the lever-lock male connector according to one embodiment of the present invention.
  • FIG. 7A is a perspective view showing a male connector and a female connector immediately before being connected in an embodiment of the present invention. The slider is in the first position.
  • FIG. 7B is a cross-sectional view of FIG. 7A.
  • FIG. 8A is a perspective view showing a male connector and a female connector connected to each other in an embodiment of the present invention. The slider is in the first position, and the locking mechanism is in the locked state.
  • FIG. 8B is a cross-sectional view of FIG. 8A.
  • FIG. 8A is a perspective view showing a male connector and a female connector connected to each other in an embodiment of the present invention. The slider is in the first position, and the locking mechanism is in the locked state.
  • FIG. 9A is a perspective view showing a male connector and a female connector connected to each other in an embodiment of the present invention.
  • the slider is in the second position and the locking mechanism is in an unlocked state.
  • FIG. 9B is a cross-sectional view of FIG. 9A.
  • the engagement of the claw with the female connector may be released.
  • the locking mechanism is reliably switched from the locked state to the unlocked state.
  • One of the slider and the lock lever may include an inclined surface inclined with respect to the longitudinal direction of the male member.
  • the other of the slider and the lock lever may slide on the inclined surface, whereby the claw is moved from the male member.
  • the lock lever may be elastically bent and deformed so as to be separated. According to this aspect, the movement of the slider along the longitudinal direction of the male member can be converted into the movement of the claw in the radial direction with a simple configuration. This is advantageous for simplifying the configuration of the male connector.
  • the lock lever When the female connector is separated from the male connector and the slider is in the first position, the lock lever may not be substantially bent and deformed. According to this aspect, when the connector is not used, the elastic recovery force of the lock lever can be prevented from being lowered by storing the connector in the first position.
  • the slider may be disposed on the opposite side of the male member with respect to the lock lever. According to this aspect, it becomes difficult for an operator or patient to touch the lock lever. This is advantageous, for example, in reducing the possibility of an accident in which the patient accidentally pulls the lock lever radially outward to release the lock state when the lock mechanism is in the lock state.
  • the male connector may further include a guide surface that does not move relative to the male member. When the slider moves between the first position and the second position, the slider may slide on the guide surface. Such an aspect is advantageous for reliably switching the lock mechanism from the locked state to the unlocked state when the slider is moved from the first position to the second position.
  • the male connector may further include a hood configured to position the female connector in a direction perpendicular to the longitudinal direction of the male member.
  • the guide surface may be provided on the hood.
  • the slider may block at least a part of a gap between the lock lever and the hood. Such an embodiment is advantageous for preventing chemicals, blood, and the like from adhering to the operator through the gap.
  • FIG. 1A is a perspective view of a lever-locked male connector (hereinafter simply referred to as “male connector”) 1 according to an embodiment of the present invention.
  • FIG. 1B is a cross-sectional perspective view of the male connector 1.
  • FIG. 2 is an exploded perspective view of the male connector 1. As shown in FIG. 2, the male connector 1 includes a male connector body 10, a slider 40, and a shield 60.
  • FIG. 3A is a cross-sectional perspective view of a male connector main body (hereinafter simply referred to as “main body”) 10, and FIG. 3B is a cross-sectional view of the main body 10.
  • the main body 10 includes a rod-shaped male member 11.
  • the cross section of FIG. 3A and FIG. 3B contains the central axis 1a (refer FIG. 3B) along the longitudinal direction of the male member 11.
  • FIG. 3B the longitudinal direction of the male member 11 is referred to as “vertical direction”, and the direction parallel to a plane orthogonal to the longitudinal direction of the male member 11 is referred to as “horizontal direction”. In the vertical direction, “upper” and “lower” are defined based on the orientation of FIG. 3B.
  • the direction of the straight line orthogonal to the central axis 1a of the male member 11 is referred to as “radial direction” or “diameter direction”, and the direction of rotation around the central axis 1a is referred to as “circumferential direction”.
  • the side away from the central axis 1a is referred to as “outer side”, and the side closer to the central axis 1a is referred to as “inside”.
  • the outer peripheral surface (that is, the side surface) of the male member 11 is a tapered surface whose outer diameter slightly decreases as it approaches the tip (that is, the upper end) of the male member 11.
  • the shape of the outer peripheral surface of the male member 11 is not limited to this, and can be arbitrarily selected.
  • the outer peripheral surface of the male member 11 may be a cylindrical surface having a constant outer diameter in the vertical direction.
  • a flow path 12 is formed along the longitudinal direction thereof.
  • Two lateral holes 13 are provided near the tip of the male member 11 (see FIG. 3B).
  • the lateral hole 13 extends along the radial direction of the male member 11 and communicates with the flow path 12.
  • the two horizontal holes 13 are provided along a straight line, but the number of the horizontal holes 13 is not necessarily two, and may be one or three or more.
  • the base 18 extends from the base end of the male member 11 along the radial direction.
  • the base 18 is a substantially circular flat plate.
  • the hood 20 and the lock lever 30 extend from the outer peripheral edge of the base 18 toward the same side as the male member 11.
  • the hood 20 has a hollow cylindrical shape coaxial with the male member 11, surrounds the male member 11, and is separated from the male member 11 in the radial direction.
  • the hood 20 extends further upward than the male member 11 and the lock lever 30.
  • the inner peripheral surface of the hood 20 (the surface facing the male member 11) is a cylinder having an inner diameter that is substantially the same as or slightly larger than the outer diameter of the female connector 100 (see FIG. 7A described later) to which the male connector 1 is connected. Surface.
  • the lock lever 30 has an elongated thin plate shape (strip shape) with a constant width (dimension in the circumferential direction).
  • the lock lever 30 faces the male member 11 in the radial direction and is disposed substantially parallel to the male member 11.
  • a claw (lock claw) 35 protrudes from the upper end (or the vicinity thereof) of the lock lever 30 toward the male member 11.
  • claw 35 is provided with the inclined surface 35a above the protrusion (part closest to the male member 11).
  • the inclined surface 35a is inclined so as to approach the base 18 toward the protruding end of the claw 35 (that is, to descend).
  • the claw 35 protrudes from the inner peripheral surface of the hood 20 to the male luer 10 side.
  • a slot (cut) 32 having a constant width extends straight from the lower end of the lock lever 30 upward by a predetermined length.
  • the slot 32 penetrates the lock lever 30 in the radial direction.
  • a portion of the lock lever 30 in which the slot 32 is provided (that is, a portion on both sides in the circumferential direction with respect to the slot 32) is referred to as an elastic portion 33.
  • the lock lever 30 has a cantilever support structure in which the lower end of the lock lever 30 connected to the base 18 is a fixed end and the upper end of the lock lever 30 is a free end.
  • the lock lever 30 can be elastically bent and deformed in the direction of arrow A (see FIG. 3B) (radially outward) so that the claw 35 is separated from the male member 11.
  • 3A and 3B including the central axis 1 a of the male member 11 is referred to as a “deformation surface” of the lock lever 30.
  • the lock lever 30 is bent and deformed along the arrow A within the deformation surface.
  • the hood 20 is provided with an opening 22 that penetrates the hood 20 in the radial direction.
  • the lock lever 30 is disposed in the opening 22.
  • the edge defining the opening 22 has a generally inverted “U” shape.
  • the edge of the opening 22 is separated from the lock lever 30 via a gap so that the lock lever 30 can be bent and deformed.
  • the lock lever 30 is substantially along the cylindrical surface along which the hood 20 extends.
  • a guide surface 26 is provided along the edge of the opening 22 that defines the circumferential width of the opening 22.
  • the guide surface 26 is a flat surface that extends along the vertical direction and is perpendicular to the deformation surface of the lock lever 30.
  • a groove 27 is provided adjacent to the guide surface 26 on the side opposite to the opening 22. The groove 27 extends from the upper end of the guide surface 26 along the vertical direction corresponding to a region having a predetermined length.
  • a connecting cylinder 17 is provided coaxially with the male member 11 on the side surface of the base 18 opposite to the male luer 10.
  • the connecting cylinder 17 has a substantially cylindrical shape and communicates with the flow path 12 of the male member 11.
  • the inner peripheral surface of the connection cylinder 17 is a tapered surface (for example, a 6% tapered surface) whose inner diameter increases as the distance from the base 18 increases.
  • a male screw is provided on the outer peripheral surface of the connecting cylinder 17.
  • the connecting cylinder 17 may be compliant with, for example, ISO 594-2.
  • a flexible tube constituting a flow path (also referred to as a circuit) through which a liquid (for example, a chemical solution, blood, etc.) flows can be connected to the connection cylinder 17 directly or indirectly through some connector.
  • the configuration on the side opposite to the male member 11 with respect to the base 18 is arbitrary.
  • the connecting cylinder 17 may have a configuration different from that of the present embodiment, or a configuration other than the connecting cylinder 17 may be provided
  • FIG. 4 is a perspective view seen from the inside of the slider 40.
  • the slider 40 has a substantially arc shape in plan view, and has a shape that approximates a part of a cylindrical surface as a whole.
  • a guide piece 42 having a thin plate shape protrudes from an inner surface 41 which is a concave curved surface of the slider 40.
  • the guide piece 42 is disposed in the vicinity of the lower end of the slider 40 in parallel with the vertical direction.
  • a protrusion 43 extends upward from the upper end of the guide piece 42.
  • the protrusion 43 is separated from the inner surface 41 of the slider 40.
  • An inclined surface 43 a is provided on the edge of the protrusion 43 that faces the inner surface 41.
  • the inclined surface 43a is inclined or curved so as to be away from the inner surface 41 upward (see FIG. 1B).
  • a pair of arms 44 protrude from the inner surface 41 so as to sandwich the guide piece 42 in the horizontal direction.
  • the arm 44 has a thin plate shape.
  • the pair of arms 44 and the guide piece 42 between them are spaced apart and parallel to each other.
  • a claw (engagement claw) 45 protrudes from the tip of each arm 44 (the place farthest from the inner surface 41) toward the guide piece 42.
  • a flat sliding surface 46 is provided at both ends of the slider 40 in the horizontal direction.
  • the sliding surface 46 extends along the vertical direction over the entire vertical length of the slider 40.
  • a protrusion 47 is provided adjacent to the sliding surface 46. The protrusion 47 extends from the upper end of the slider 40 by a predetermined length along the vertical direction.
  • the main body 10 and the slider 40 are preferably made of a hard material. Specifically, resin materials such as polyacetal, polycarbonate, polystyrene, polyamide, polypropylene, and hard polyvinyl chloride can be used. Each of the main body 10 and the slider 40 can be integrally manufactured as a whole by using these resin materials by an injection molding method or the like.
  • the slider 40 is mounted on the main body 10 along the radial direction with the inner surface 41 (see FIG. 4) facing the lock lever 30.
  • FIG. 5 is a cross-sectional perspective view of the main body 10 to which the slider 40 is mounted.
  • the shield 60 (see FIGS. 1B and 2) is omitted.
  • the guide piece 42 and the protrusion 43 of the slider 40 are inserted into the slot 32 of the lock lever 30.
  • the inclined surface 43 a of the protrusion 43 faces the upper end 32 a of the slot 32 on the inner surface of the lock lever 30 in the vertical direction.
  • the arm 44 of the slider 40 is inserted into the opening 22 (see FIG. 2) of the main body 10.
  • the lock lever 30 is located between the two arms 44.
  • a claw 45 provided at the tip of the arm 44 faces the lock lever 30 in the radial direction.
  • the claw 45 is engaged with the lock lever 30. Once the claw 45 engages the lock lever 30, it is difficult to separate the slider 40 from the main body 10 radially outward.
  • the slider 40 covers most of the lock lever 30.
  • a sliding surface 46 (see FIG. 4) of the slider 40 is in contact with or close to the guide surface 26 of the main body 10.
  • the protrusion 47 of the slider 40 is fitted in the groove 27 of the main body 10. Most of the gap (opening 22, see FIG. 2) between the lock lever 30 and the guide surface 26 is blocked by the slider 40.
  • the slider 40 is movable in the vertical direction with respect to the main body 10 while being attached to the main body 10.
  • the downward movement of the slider 40 relative to the main body 10 is restricted by the lower end 46a (see FIG. 4) of the sliding surface 46 of the slider 40 coming into contact with the base 18 of the main body 10 in the vertical direction.
  • the slider 40 is located at the lowest position with respect to the main body 10.
  • the lowest position of the slider 40 with respect to the main body 10 shown in FIGS. 1A, 1B, and 5 is referred to as a “first position”.
  • the lock lever 30 is not substantially bent and deformed.
  • the position of the slider 40 in the radial direction with respect to the main body 10 is regulated by the claw 45 engaging with the lock lever 30 and the sliding surface 46 abutting on the guide surface 26.
  • the circumferential position of the slider 40 with respect to the main body 10 is regulated by the guide piece 42 being fitted into the slot 32, the lock lever 30 being located between the two arms 44, and the protrusion 47 being fitted into the groove 27. Is done.
  • FIG. 6 is a cross-sectional perspective view of the shield 60.
  • the shield 60 includes a head 61, a peripheral wall 65, and a base 68 in this order from top to bottom.
  • the shield 60 can be deformed relatively easily by an external force, and a soft material (so-called elastomer) having elasticity (or flexibility) so that the state before the deformation (natural state) is restored as soon as the external force is removed. ).
  • the soft material that can be used is not limited, but examples include soft polyvinyl chloride, thermoplastic elastomers such as styrene elastomers, olefin elastomers, and polyurethane elastomers, rubbers such as isoprene rubber, silicone rubber, and butyl rubber. be able to.
  • the shield 60 can be integrally manufactured as a whole by using the above materials.
  • the peripheral wall 65 has a hollow cylindrical shape as a whole.
  • the peripheral wall 65 is elastically compressed and deformed so that the vertical dimension is shortened (see FIG. 8B described later). Configured to recover to a state.
  • a tapered (conical) portion whose outer diameter and inner diameter increase downward and a cylindrical portion whose outer diameter and inner diameter are constant in the vertical direction are alternately arranged in the vertical direction on the peripheral wall 65.
  • the structure of the surrounding wall 65 is not limited to this embodiment, For example, a bellows shape etc. can be changed arbitrarily.
  • the head 61 has a lumen 62 that communicates with the internal space of the peripheral wall 65.
  • the inner peripheral surface of the lumen 62 preferably has a shape along the outer peripheral surface of the male member 11 so as to be in close contact with the outer peripheral surface of the male member 11.
  • the inner peripheral surface of the lumen 62 is a cylindrical surface whose inner diameter is constant in the vertical direction.
  • a slit 63 that penetrates the head 61 in the vertical direction is formed at the deepest portion of the lumen 62.
  • the slit 63 is a straight cut having a planar view shape of “ ⁇ ” (minus).
  • a conical (or mushroom-shaped or umbrella-shaped) convex portion 64 protrudes upward. The slit 63 passes through the top of the center of the convex portion 64.
  • the shield 60 is fixed to the main body 10 using the base 68.
  • the base portion 68 of the present embodiment protrudes outward in the radial direction from the lower end of the peripheral wall 65.
  • the base 68 is placed on the base 18 of the main body 10 (see FIG. 1B), and an annular fixing ring (not shown) is externally attached to the shield 60 and placed on the base 68.
  • the fixing ring is locked in a through hole 19 (see FIGS. 1A, 3A, and 5) provided in the hood 20 of the main body.
  • the shield 60 is fixed to the main body 10.
  • the fixing method with respect to the main body 10 of the shield 60 is not limited to this, and is arbitrary. Depending on the fixing method, the configuration of the base 68 may be changed as appropriate.
  • the tip of the male member 11 and the vicinity thereof are inserted into the lumen 62 of the shield 60.
  • the inner peripheral surface of the lumen 62 is expanded by the male member 11 and is in close contact with the male member 11.
  • the lateral hole 13 of the male member 11 is liquid-tightly closed by the inner peripheral surface of the lumen 62 (see FIG. 7B described later).
  • the shield 60 is not substantially compressed and deformed in the vertical direction, the slit 63 is closed, the slider 40 is in the first position, and an external force is not substantially applied to the lock lever 30. This state is referred to as an “initial state” of the male connector 1.
  • FIG. 7A is a perspective view showing the male connector 1 immediately before connecting to the female connector 100.
  • FIG. 7B is a cross-sectional view of FIG. 7A.
  • the female connector 100 includes a disk-shaped partition wall member (hereinafter referred to as “septum”) 101 made of an elastic material such as rubber.
  • a linear slit (cut) 102 that penetrates the septum 101 in the thickness direction is formed.
  • the slit 102 is closed in a liquid-tight manner.
  • the septum 101 is placed at the tip of a cylindrical base 110 having an inner cavity 111.
  • a cap 130 is put on the septum 101.
  • the cap 130 is fixed to the base portion 110 by fitting a locking claw 115 protruding from the outer peripheral surface of the base portion 110 into a through hole 135 formed in the cylindrical portion 133.
  • the septum 101 is sandwiched between the base 110 and the cap 130 in the vertical direction.
  • a circular opening 132 is formed at the center of the circular top plate 131 of the cap 130.
  • the slit 102 of the septum 101 is exposed through the opening 132.
  • An annular protrusion 112 that is continuous in the circumferential direction protrudes from the outer peripheral surface of the base 110.
  • the annular protrusion 112 is adjacent to the upper side (the side opposite to the septum 101) with respect to the cylindrical portion 133 of the cap 130.
  • the outer peripheral surface of the annular protrusion 112 constitutes a substantially identical cylindrical surface as the outer peripheral surface of the cylindrical portion 133.
  • a male luer 120 having a tapered outer peripheral surface and a female screw 122 coaxial with the male luer 120 are provided on the opposite side to the base 110.
  • the structure of the part on the opposite side to the base 110 of the female connector 100 is not limited to this, and is arbitrary.
  • the female connector 100 is opposed to the male connector 1.
  • a flexible tube is directly or indirectly connected to the connection tube 17 of the male connector 1
  • a flexible tube is also directly or indirectly connected to the male luer 120 of the female connector 100. It is connected to the.
  • the male connector 1 is in the initial state shown in FIGS. 1A and 1B.
  • the cap 130 of the female connector 100 is inserted into the hood 20 of the male connector 1, and the female connector 100 is further pushed toward the male connector 1.
  • the female connector 100 collides with the convex portion 64 of the shield 60 and moves the head 61 downward.
  • the male member 11 passes through the slit 63 of the shield 60 and further enters the slit 102 of the septum 101.
  • the outer peripheral edge 131 a of the top plate 131 of the cap 130 contacts the inclined surface 35 a of the claw 35 of the lock lever 30.
  • the outer peripheral edge 131a elastically bends and deforms the lock lever 30 in the direction in which the claw 35 is separated from the male luer 10 (the direction of the arrow A in FIG. 3B) while sliding on the inclined surface 35a.
  • the claw 35 slides on the cylindrical portion 133 and the annular protrusion 112 of the cap 130 in order.
  • the lock lever 30 recovers elastically, and the claw 35 engages with the annular protrusion 112.
  • FIG. 8A is a perspective view showing the male connector 1 connected to the female connector 100.
  • FIG. 8B is a cross-sectional view of FIG. 8A.
  • the male member 11 passes through the slit 63 of the shield 60 and the slit 102 of the septum 101 in order.
  • the septum 101 is greatly deformed by the male member 11 toward the lumen 111 side of the base 110.
  • the lateral hole 13 of the male member 11 is exposed in the lumen 111.
  • the flow path 12 of the male member 11 and the lumen 111 of the female connector 100 communicate with each other.
  • the peripheral wall 65 is compressed and deformed so that the shield 60 receives a compressive force in the vertical direction and the vertical dimension thereof is reduced.
  • the lock lever 30 has recovered to substantially the same state as the initial state.
  • the claw 35 of the lock lever 30 is engaged with the annular protrusion 112 of the female connector 100 (locked state).
  • the slider 40 In order to separate the female connector 100 from the male connector 1, the slider 40 is moved upward as shown in FIGS. 9A and 9B.
  • the position of the slider 40 shown in FIGS. 9A and 9B is referred to as a “second position”.
  • the inclined surface 43 a provided on the slider 40 collides with the upper end 32 a of the slot 32 of the lock lever 30 in the process of moving the slider 40 to the second position.
  • the inclined surface 43a moves the upper end 32a radially outward while sliding upward on the upper end 32a.
  • the lock lever 30 (especially its elastic portion 33, see FIGS. 3A and 3B) is elastically bent and deformed, and the claw 35 moves radially outward.
  • the engagement of the claw 35 with the annular protrusion 112 is released (non-locked state).
  • the female connector 100 can be separated from the male connector 1.
  • the septum 101 is elastically restored immediately after the male member 11 is removed, and the slit 102 is closed in a liquid-tight manner.
  • the shield 60 is stretched by its own elastic recovery force.
  • the slit 63 is liquid-tightly closed as soon as the male member 11 is pulled out. Thereafter, the slider 40 is returned to the first position.
  • the lock lever 30 recovers elastically.
  • the male connector 1 returns to the initial state (see FIGS. 1A, 1B, 7A, and 7B).
  • the male connector 1 of this embodiment includes the lock lever 30 provided with the claws 35.
  • the claw 35 can be engaged with the female connector 100 in a state where the male member 11 is inserted.
  • the lock lever 30 provided with the claw 35 functions as a lever lock type lock mechanism for maintaining the state where the female connector 100 is connected to the male connector 1.
  • the female connector 100 is connected to the male connector 1 even if a force is applied to the male connector 1 and the female connector 100 in a direction to separate them. It cannot be separated from 1.
  • the male connector 1 includes a slider 40 that moves in a direction parallel to the longitudinal direction of the male member 11 between a first position and a second position.
  • the claw 35 moves in the radial direction in conjunction with the movement of the slider 40 between the first position and the second position.
  • the slider 40 When the slider 40 is in the first position, the claw 35 engages with the female connector 100 into which the male member 11 is inserted, and the locking mechanism is in a locked state (see FIGS. 8A and 8B).
  • the slider 40 is moved to the second position, the engagement of the claw 35 with respect to the female connector 100 is released, and the lock mechanism is brought into an unlocked state in which the locked state is released (see FIGS. 9A and 9B). In the unlocked state, the female connector 100 can be separated from the male connector 1.
  • the locked state can be released by pushing the operation lever inward in the radial direction. For this reason, when the operating lever is pushed due to a male connector colliding with a surrounding object or underlaying a patient, the locked state is unintentionally released.
  • the male connector 1 of this embodiment in order to release the locked state, it is necessary to move the slider 40 from the first position to the second position along the longitudinal direction of the male member 11. Even if the male connector 1 (see FIGS. 8A and 8B), to which the female connector 100 is connected and locked, collides with a surrounding object or underlies a patient, the slider 40 is moved from the first position to the second position. It is very unlikely that a force for moving to a position will be applied. For this reason, the possibility that an accident in which the locked state is unintentionally released and the female connector 100 is separated from the male connector 1 is low. The possibility that the liquid flow path constituted by the male connector 1 and the female connector 100 is unintentionally cut is low, and the male connector 1 is excellent in safety.
  • the interlock between the slider 40 and the claw 35 occurs when the slot upper end 32a of the lock lever 30 slides on the inclined surface 43a of the slider 40.
  • the vertical movement of the slider 40 is converted into the radial movement of the claw 35 (or the lock lever 30).
  • the lock lever 30 In a state where the female connector 100 is separated from the male connector 1 and the slider 40 is in the first position (ie, the initial state, see FIGS. 1A, 1B, 7A, and 7B), the lock lever 30 is substantially No bending deformation. For this reason, when storing for a long period of time without using the male connector 1, it is preferable to set the slider 40 to the first position. This is advantageous in avoiding a problem that the recovery force of the lock lever 30 decreases due to the state in which the lock lever 30 is bent and deformed for a long time, and the claw 35 does not engage with the female connector 100. is there.
  • the slider 40 is disposed radially outward with respect to the lock lever 30 and covers at least a part of the lock lever 30. For this reason, it is difficult for an operator or patient to touch the lock lever 30. This is advantageous, for example, in reducing the possibility of an accident in which the patient accidentally pulls the lock lever 30 outward in the radial direction to release the locked state in the locked state (see FIGS. 8A and 8B). It is.
  • the slider 40 can be disposed close to the lock lever 30 in the radial direction. For this reason, the increase in the radial dimension of the male connector 1 due to the provision of the slider 40 is slight.
  • the male connector of Patent Document 1 described above has problems such as an operation lever protruding from the lock lever being caught by a surrounding object or a patient's clothing.
  • the slider 40 of this embodiment has a smooth convex curved surface (substantially cylindrical surface), the above-described problem of the male connector of Patent Document 1 is solved.
  • the slider 40 closes at least a part of the gap between the edge of the opening 22 of the hood 20 and the lock lever 30. For this reason, possibility that an operator's finger
  • the slider 40 moves along the guide surface 26 between the first position and the second position.
  • the guide surface 26 is provided immovably with respect to the male member 11. This is advantageous in reliably releasing the engagement of the claw 35 with respect to the female connector 100 when the slider 40 is moved from the first position to the second position.
  • the hood 20 is configured so that the female connector 100 can be positioned in the horizontal direction. This is advantageous for stably engaging the claw 35 with the female connector 100.
  • the hood 20 has a cylindrical shape continuous in the circumferential direction and surrounds the male member 11. This is advantageous for improving the strength of the hood 20. For example, since the accuracy of positioning the female connector 100 in the horizontal direction is improved, the claw 35 can be stably engaged with the female connector 100. Further, since the accuracy of the guide surface 26 on which the slider 40 slides is improved, the engagement of the claw 35 with the female connector 100 can be reliably released when the slider 40 is moved from the first position to the second position. It becomes possible. Moreover, the cylindrical hood 20 surrounding the male member 11 makes it difficult for the operator to touch the shield 60. This is advantageous in isolating an operator from chemicals or blood that may be attached to the shield 60 or the like after the female connector 100 is separated.
  • the male connector 1 of the above embodiment includes only one lock lever 30, the male connector of the present invention may include a plurality of lock levers 30.
  • a slider 40 is provided for each lock lever 30.
  • the two lock levers 30 may be arranged symmetrically with respect to the male member 11.
  • the two sliders 40 corresponding to the two lock levers 30 may be configured to move independently, or may be configured to move together by connecting the two sliders 40.
  • the mechanism for deforming the lock lever 30 in the process in which the slider 40 moves from the first position to the second position is not limited to the above embodiment, and can be changed as appropriate.
  • the inclined surface 43a of the slider 40 may be omitted, and instead, the lock lever 30 may be provided with an inclined surface that is inclined (or curved) so as to approach the male member 11 from the first position toward the second position. .
  • the lock lever 30 can be bent and deformed similarly to the above-described embodiment by sliding on the sliding surface.
  • the slider 40 may be detachable from the main body 10.
  • the male connector of the present invention may be configured such that the slider 40 can be separated from the main body 10 when the slider 40 is moved downward beyond the base 18.
  • the slider 40 is attached to the main body 10 only when the locked state by the lock lever 30 is released, and otherwise the slider 40 is detached from the main body 10. This is advantageous in preventing an accident in which the slider 40 in the first position unintentionally moves to the second position and the locked state is released.
  • the second position is disposed above the first position (the distal end side of the male member 11). On the contrary, the second position is disposed below the first position. It may be.
  • the shape of the lock lever 30 is not limited to an elongated thin plate shape extending substantially parallel to the male member 11.
  • the lock lever 30 has a substantially “L” -shaped side view shape that extends radially outward from a fixed end connected to the base 18 and then bends upward at a substantially right angle. May be.
  • the lock lever 30 may not be disposed in the opening 22 of the hood 20.
  • the lock lever 30 may be provided on the radially outer side of the hood 20 and spaced from the hood 20.
  • the claw 35 of the lock lever 30 can be engaged with the female connector 100 through a small opening formed in the hood 20 or above the upper end of the hood 20.
  • the male connector 1 of the above embodiment includes the hollow cylindrical hood 20 surrounding the male member 11, the configuration of the hood 20 is not limited to the above embodiment.
  • the hood does not need to be annularly continuous in the circumferential direction, and may be a plurality of plate-like bodies (or rod-like bodies) extending in parallel with the male member 11, for example.
  • a guide surface 26 on which the slider 40 slides can be provided on at least one of the plurality of plate-like bodies.
  • the hood 20 may be omitted. Since the female connector 100 is roughly positioned in the horizontal direction by inserting the male member 11, the claw 35 of the lock lever 30 can be engaged with the female connector 100.
  • the outer peripheral surface of the female connector 100 can be used as a guide surface on which the slider 40 slides. With the claw 35 engaged with the female connector 100, the slider 40 is moved from the first position to the second position while sliding on the outer peripheral surface of the female connector 100. The slider 40 can bend and deform the lock lever 30 so that the claw 35 moves outward in the radial direction.
  • the portion of the female connector 100 with which the claw 35 of the lock lever 30 engages may be changed as appropriate according to the configuration of the female connector 100.
  • the shape and position of the claw 35 can be changed according to the portion engaged with the female connector 100.
  • the horizontal hole 13 of the male member 11 extends along the radial direction in the above embodiment, but the present invention is not limited to this, and at an arbitrary angle other than a right angle with respect to the central axis 1 a of the male member 11. You may extend along the intersecting straight line.
  • the lateral hole 13 may be omitted, and the flow path 12 may open upward from the tip of the male member 11.
  • the configuration of the shield 60 can be arbitrarily changed.
  • the self-closing slit 63 may be omitted, and the lumen 62 may penetrate the head 61 in the vertical direction.
  • the male connector of the present invention may not have the shield 60.
  • the female connector to which the male connector of the present invention is connected is not limited to the above embodiment.
  • the female connector may be a mixed injection port provided in the middle of the flexible tube.
  • the female connector may not include the septum 101.
  • the female connector may include a rubber stopper such as a mouth of a vial bottle or a port of various containers.
  • the male member 11 is changed to a puncture needle having a sharp tip so that the rubber plug can be punctured.
  • the claw 35 of the lock lever 30 is changed so as to engage with an enlarged diameter flange surrounding the rubber stopper.
  • the application field of the present invention is not particularly limited, but can be widely used as a male connector connected to and disconnected from a female connector.
  • the present invention is advantageous for preventing sudden disconnection of the flow path through which the liquid flows and leakage of the liquid to the outside due to this.
  • the present invention can be preferably used to configure a flow path for, for example, infusion, blood transfusion, and artificial dialysis.
  • the present invention can be preferably used to configure a flow path through which a liquid (for example, a dangerous chemical liquid such as an anticancer drug or blood) that needs to be prevented from being exposed to an operator flows. it can.
  • the present invention is preferably used in the medical field, but can also be used in various fields that handle liquids other than medical foods and chemicals.

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

Un levier de blocage (30) est disposé face à un élément mâle en forme de tige (11). Une pince (35) est disposée sur le levier de blocage (30) de façon à faire saillie vers l'élément mâle (11). Un connecteur mâle (1) est pourvu d'un curseur (40) qui se déplace entre une première position et une seconde position dans une direction parallèle à la direction longitudinale de l'élément mâle (11). La pince (35) est configurée de manière à être apte à venir en prise avec un connecteur femelle (100) lorsque l'élément mâle (11) est inséré dans le connecteur femelle (100) et le curseur (40) est dans la première position. Lorsque le curseur (40) est déplacé de la première position à la seconde position, le curseur (40) amène le levier de blocage (30) à se déformer en flexion élastiquement de telle sorte que la pince (35) s'éloigne de l'élément mâle (11).
PCT/JP2019/020112 2018-05-22 2019-05-21 Connecteur mâle à blocage de levier WO2019225604A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018097742A JP7163617B2 (ja) 2018-05-22 2018-05-22 レバーロック式オスコネクタ
JP2018-097742 2018-05-22

Publications (1)

Publication Number Publication Date
WO2019225604A1 true WO2019225604A1 (fr) 2019-11-28

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ID=68616153

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/020112 WO2019225604A1 (fr) 2018-05-22 2019-05-21 Connecteur mâle à blocage de levier

Country Status (2)

Country Link
JP (1) JP7163617B2 (fr)
WO (1) WO2019225604A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022149339A1 (fr) * 2021-01-08 2022-07-14 テルモ株式会社 Connecteur mâle et appareil médical

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7445745B2 (ja) 2020-03-19 2024-03-07 テルモ株式会社 コネクタセット及びメスコネクタ

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013154050A1 (fr) * 2012-04-13 2013-10-17 株式会社ジェイ・エム・エス Raccord mâle comportant un mécanisme de verrou
WO2016152169A1 (fr) * 2015-03-26 2016-09-29 テルモ株式会社 Raccord medical
JP2018007719A (ja) * 2016-07-11 2018-01-18 株式会社ジェイ・エム・エス オスコネクタ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013154050A1 (fr) * 2012-04-13 2013-10-17 株式会社ジェイ・エム・エス Raccord mâle comportant un mécanisme de verrou
WO2016152169A1 (fr) * 2015-03-26 2016-09-29 テルモ株式会社 Raccord medical
JP2018007719A (ja) * 2016-07-11 2018-01-18 株式会社ジェイ・エム・エス オスコネクタ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022149339A1 (fr) * 2021-01-08 2022-07-14 テルモ株式会社 Connecteur mâle et appareil médical

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JP2019201777A (ja) 2019-11-28

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