WO2016152016A1 - Connecteur mâle et ensemble de perfusion - Google Patents

Connecteur mâle et ensemble de perfusion Download PDF

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Publication number
WO2016152016A1
WO2016152016A1 PCT/JP2016/000882 JP2016000882W WO2016152016A1 WO 2016152016 A1 WO2016152016 A1 WO 2016152016A1 JP 2016000882 W JP2016000882 W JP 2016000882W WO 2016152016 A1 WO2016152016 A1 WO 2016152016A1
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WO
WIPO (PCT)
Prior art keywords
flow path
distal end
housing
male connector
plug
Prior art date
Application number
PCT/JP2016/000882
Other languages
English (en)
Japanese (ja)
Inventor
泰央 上田
Original Assignee
テルモ株式会社
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 テルモ株式会社 filed Critical テルモ株式会社
Priority to JP2017507361A priority Critical patent/JP6709777B2/ja
Publication of WO2016152016A1 publication Critical patent/WO2016152016A1/fr

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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
    • 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 and an infusion set.
  • An infusion line is generally formed by connecting an infusion tube, various medical devices, and the like.
  • an infusion tube When injecting a drug solution to be administered to a patient into a drug solution bag, it is necessary to connect the drug solution bag to a syringe or the like.
  • a male connector and a female connector are used to detachably connect different members.
  • the chemical solution for example, there is a chemical solution containing a drug designated as a powerful drug such as an anticancer drug, and a medical worker can remove such a dangerous chemical solution when attaching / detaching a male connector or a female connector. It is necessary to pay sufficient attention so that the liquid does not adhere to the finger or the like.
  • Patent Document 1 discloses a distal valve that is disposed at a distal end of a housing and includes an internal valve seat disposed in a tubular male portion that engages a female connector (female connector), and a proximal end of the housing.
  • a proximal valve disposed and a rigid drive movably disposed within the housing to move toward the proximal end of the housing to open both the distal and proximal valves
  • An elastic member incorporated in the housing and positioned to bias the drive toward the distal end of the housing to close both the distal and proximal valves;
  • Male connector male connector
  • Called male closed connector or closed male connector It is disclosed.
  • an object of the present invention is to provide a closed male connector and an infusion set capable of suppressing air bubbles from entering the flow channel after priming.
  • a male connector as a first aspect of the present invention has a distal end cylindrical portion that can be inserted into a female connector, and internally includes a flow path including a distal end flow path defined by the distal end cylindrical portion. And a valve body capable of closing and opening the distal end flow path, the valve body having a deformable portion that can be elastically deformed, and the distal end flow path by elastic deformation of the deformable portion.
  • a plug portion movable between a closed position for closing and an open position for opening the distal end flow path, wherein the housing defines a storage space for storing the deformation portion, and the storage The space and the flow path are partitioned by the plug portion when the plug portion is in the closed position and in the open position.
  • the plug portion is movable between the closed position and the open position in a state where the flow path and the accommodation space are partitioned.
  • the housing includes the distal end tubular portion formed on one end side, the proximal end tubular portion formed on the other end side and connectable to a medical device, and the distal end.
  • a body connecting the end tube portion and the proximal end tube portion, and the flow channel includes the distal end flow channel, the proximal end flow channel defined by the proximal end tube portion, and the A body channel that defines a body part that connects the distal end channel and the proximal end channel, and the fluid flows from the proximal end channel to the body.
  • the liquid-tight structure is constituted by a space that flows only through the partial flow path to the distal end flow path.
  • the trunk portion is located between an inner cylinder portion that divides the housing space inside and a radially outer side of the inner cylinder portion, and between the inner cylinder portion.
  • An opening that communicates with the trunk flow path at the distal end of the inner cylindrical section, and the plug portion is connected to the trunk flow path through the opening. It is preferable that the seal portion is formed between the outer wall of the plug portion and the inner wall of the inner cylinder portion.
  • the seal portion is constituted by an annular protrusion formed on the outer wall of the plug portion, or a seal member interposed between the plug portion and the inner cylinder portion. Is preferred.
  • the housing space communicates with the outside of the housing.
  • the plug portion includes a main body portion located in the housing, and is connected to the main body portion and located outside the housing, and the distal end tubular portion is disposed in the female connector. It is preferable to include an engaging portion that engages with the female connector when inserted and moves the main body portion within the housing.
  • the infusion set as the second aspect of the present invention includes the male connector.
  • FIG. 2A is a view of the male connector shown in FIG. 1 viewed from the side
  • FIG. 2B is a view of the male connector shown in FIG. 1 viewed from the distal end side
  • 3 (a) is a sectional view taken along the line II in FIG. 2 (b)
  • FIG. 3 (b) is the same sectional view as FIG. 3 (a), with the female connector shown in FIG.
  • 4A is a perspective view of the male connector shown in FIG. 1 in which the housing body member and the plug are extracted
  • FIG. 4B is a cross-sectional view taken along the line II-II in FIG. 4 (c) is a sectional view taken along line III-III in FIG. 4 (a). It is IV-IV sectional drawing of Fig.4 (a). It is a perspective view which shows the single-piece
  • claw member. It is a perspective view which shows the single body of a cover member. It is a cross-sectional perspective view which shows the VV cross section of FIG. FIG. 10 is a diagram showing a state in which a male connector and a female connector are connected in the same sectional view as FIG. 9.
  • FIG. 1 It is a cross-sectional perspective view which shows the VI-VI cross section of FIG. It is a figure which shows the state by which the male connector and the female connector were connected in the same cross sectional view as FIG. It is sectional drawing which shows the modification of a distal end cylinder part. It is a figure which shows the infusion set as one Embodiment of this invention.
  • the male connector 1 includes a housing 2, a valve body 3 located in the housing 2, a claw member 4 fixed to the housing 2, and a housing 2. And a cover member 5 attached to be movable.
  • the housing 2 defines a flow path 6 inside. More specifically, the housing 2 of the present embodiment includes a distal end tubular portion 7 that can be inserted into the female connector 100, a proximal end tubular portion 8 that can be connected to a medical device such as a medical tube, and a distal end. A body 9 that connects the end cylinder 7 and the proximal end cylinder 8, and the flow path 6 is configured by the distal end cylinder 7, the proximal end cylinder 8, and the hollow portion that the body 9 defines.
  • the housing 2 of the present embodiment is configured by a housing main body member 2a that constitutes the distal end cylinder part 7 and the body part 9, and a proximal end side connection member 2b that constitutes the proximal end cylinder part 8. ing.
  • the distal end cylinder portion 7 is inserted into the insertion port 101 of the female connector 100, and the distal end capable of fluid-tightly communicating the flow path 6 in the male connector 1 and the flow path 102 in the female connector 100. It is a cylindrical connection part on the end side. Further, the proximal end cylinder portion 8 is fitted into the medical tube from the distal end side of the medical tube, for example, and fixed to the medical tube, and the flow path 6 and the medical tube in the male connector 1 are fixed. This is a cylindrical connection portion on the proximal end side capable of fluid-tight communication with the inner hollow portion.
  • the barrel portion 9 has a cylindrical outer shape and is a portion that connects the distal end cylindrical portion 7 and the proximal end cylindrical portion 8.
  • the distal end cylinder part 7 projects from one end of the body part 9 and the proximal end cylinder part 8 projects from the other end.
  • the distal end cylinder part 7, the proximal end cylinder part 8 and the trunk part 9 are arranged so that the central axes substantially coincide (in FIG. O ”).
  • the body portion 9 of the present embodiment includes a distal end side body portion 10 continuous with the distal end cylinder portion 7, a proximal end side body portion 11 continuous with the proximal end cylinder portion 8, and a distal end And an intermediate body 12 that connects the side body 10 and the proximal end side body 11.
  • the flow path 6 of the housing 2 includes a distal end flow path 6a defined by a distal end cylindrical part 7 formed on one end side of the housing 2 and a housing 2 in which the distal end cylindrical part 7 is formed.
  • the flow path 6 of this embodiment is comprised liquid-tightly by the space where a liquid flows only from the proximal end flow path 6b to the distal end flow path 6a via the trunk
  • path 6c is divided into the hollow part 13 which the distal end side trunk
  • the first branch flow channel 15 and the second branch flow channel 16 are two hollow portions that connect the hollow portion 13 defined by the side body portion 10 and the hollow portion 14 defined by the proximal end side body portion 11. ing.
  • the proximal end flow path 6b the hollow part 14 defined by the proximal end side body part 11, the first branch flow path 15 (or the second branch flow path 16), the distal end side body
  • the hollow portion 13 defined by the portion 10 and the distal end flow channel 6a are arranged in this order, and these hollow portions communicate with each other to form the flow channel 6.
  • FIG. 4A is a perspective view in which the housing main body member 2a of the housing 2 and the plug body constituting the plug portion 31 of the valve body 3 described later are extracted from the male connector 1 and drawn.
  • . 4B is a cross-sectional view taken along the line II-II in FIG. 4A
  • FIG. 4C is a cross-sectional view taken along the line III-III in FIG.
  • FIG. 5 is a cross-sectional view taken along the line IV-IV in FIG.
  • the intermediate body portion 12 is positioned concentrically on the outer side in the radial direction of the inner cylinder portion 17 and an inner cylinder portion 17 that divides an accommodation space S to be described later.
  • An outer cylinder part 18 that divides the first branch flow path 15 and the second branch flow path 16 described above with the part 17, and a connection part 19 that connects the inner cylinder part 17 and the outer cylinder part 18. ing.
  • the central axis of the trunk portion 9 that is the central axis of the inner cylindrical portion 17 and the outer cylindrical portion 18 substantially coincides with the central axis of the distal end cylindrical portion 7 and the proximal end cylindrical portion 8. (Refer to “center axis O” in FIG. 2).
  • the inner cylinder portion 17 is supported by the outer cylinder portion 18 via a connecting portion 19.
  • the inner cylinder part 17 and the outer cylinder part 18 are located between the outer wall of the inner cylinder part 17 and the inner wall of the outer cylinder part 18 and are integrally formed with the inner cylinder part 17 and the outer cylinder part 18. It is continuous via the connecting part 19.
  • the connecting portion 19 also functions as a partition that separates the first branch channel 15 and the second branch channel 16 in the circumferential direction C of the inner cylinder portion 17 and the outer cylinder portion 18. is doing. Further, as shown in FIG.
  • a notch 20 as an opening penetrating from the inner wall of the inner cylinder portion 17 to the outer wall of the outer cylinder portion 18 is formed on the proximal end side of the connecting portion 19. That is, in FIG. 3, the accommodation space S partitioned inside the inner cylinder portion 17 communicates with the outside of the housing 2, that is, the outside of the male connector 1 through the notch 20. As shown in FIG. 4, the arm portion 36 as the engaging portion in the plug portion 31 of the valve body 3 is assembled to the housing 2 so as to protrude outward of the housing 2 through the notch 20.
  • the proximal end side portion where the notch 20 is formed is a first branch cylinder part 21 and a second branch cylinder part 22 which are two different cylinder parts.
  • the first branch cylinder part 21 and the second branch cylinder part 22 are opposed to each other with the accommodation space S and the notch 20 interposed therebetween (see FIG. 4).
  • the distal end of the inner tube portion 17 of the present embodiment leads to a hollow portion 13 defined by the distal end side body portion 10 of the body channel 6 c.
  • An opening is formed, and the plug body as the plug section 31 of the valve body 3 is in a state of entering the inner cylinder section 17 through this opening. That is, in this embodiment, the plug portion 31 of the valve body 3 to be described later is disposed across the trunk channel 6 c and the inner cylinder portion 17 through an opening formed at the distal end of the inner cylinder portion 17. Yes.
  • the proximal end of the inner cylinder portion 17 of the present embodiment has an opening leading to the hollow portion 14 defined by the proximal end side body portion 11 of the body portion flow path 6 c. Is formed, and a bellows cylinder as a deformed portion 30 of the valve body 3 to be described later is inserted into the inner cylinder portion 17 through this opening, and the bottom plate portion 34 of the bellows cylinder is It is sandwiched between the proximal end of the cylindrical portion 17 and the proximal end side connecting member 2b.
  • the outer cylindrical portion 18 of the intermediate body portion 12 has a distal end side and a proximal end side with respect to the inner cylindrical portion 17 in the central axis direction A (direction parallel to the central axis O).
  • the distal end side barrel portion 10 and the proximal end side barrel portion 11 described above are configured by the outer cylinder portion 18.
  • the substantially cylindrical distal end cylindrical portion 7 is configured such that the inner diameter and the outer diameter are substantially constant regardless of the position in the central axis direction A.
  • the inner diameter and outer diameter of the outer cylinder portion 18 are the distal end cylinder portion 7 in the cross-sectional view of FIG.
  • the inner diameter and the outer diameter of the distal end cylindrical portion 7 are larger than the inner diameter and the outer diameter of the distal end cylinder portion 7 in a sectional view of FIG.
  • a distal end portion 38 of the plug portion 31 of the valve body 3 to be described later has a substantially cylindrical shape, and the outer diameter thereof is substantially equal to the inner diameter of the distal end cylindrical portion 7.
  • the distal end flow path 6 a is closed, and the tip portion 38 is not positioned in the distal end cylindrical portion 7, so In a state of being located (in the distal end side body portion 10 in this embodiment), the distal end flow path 6a is opened. Details will be described later (see FIG. 3 and the like).
  • the outer wall of the distal end cylinder part 7 and the outer wall of the outer cylinder part 18 are continuous via a step surface 23 as an abutting part. ing.
  • the stepped surface 23 abuts against the cap 103 (see FIG. 1) of the female connector 100 when the distal end cylindrical portion 7 of the male connector 1 is inserted into the insertion port 101 of the female connector 100, and has a predetermined depth or more. Restrict insertion.
  • a long groove 24 extending in the circumferential direction C of the outer cylinder portion 18 is formed on the outer wall of the outer cylinder portion 18 of the housing 2 of the present embodiment.
  • Two long grooves 24 of the present embodiment are provided at positions facing each other in a cross section of the outer cylinder portion 18 (a cross section orthogonal to the central axis direction A), and a bottom plate portion 50 of the claw member 4 to be described later is provided in the long groove 24.
  • the inner edge of is fitted. Therefore, the claw member 4 is restricted from moving in the central axis direction A with respect to the housing 2.
  • the housing 2 of the present embodiment is composed of the housing main body member 2a and the proximal end side connecting member 2b, and the proximal end portion of the housing main body member 2a (in the present embodiment, near On the distal end side body portion 11), flange portions 25 a and 25 b supported by the proximal end side connecting member 2 b are provided so as to protrude outward in the radial direction of the outer cylinder portion 18.
  • the flange parts 25 a and 25 b are also divided into two parts by the notch 20 described above, and are formed integrally with the first branch cylinder part 21.
  • the first flange portion 25a and the second flange portion 25b formed integrally with the second branch tube portion 22 are configured.
  • the proximal end side connecting member 2 b is provided on a substantially cylindrical tubular body 26 constituting the proximal end tubular portion 8 and on one end side of the tubular body 26.
  • the proximal end side connection member 2b is connected to the proximal end side surfaces of the first flange portion 25a and the second flange portion 25b described above by, for example, ultrasonic bonding or the like. By being attached, it is supported by the housing body member 2a.
  • FIG. 6 is a perspective view showing a single unit of the proximal end side connecting member 2b.
  • the surface on the distal end side of the flange portion 27 is provided between the first branch cylinder portion 21 and the second branch cylinder portion 22, and between the first flange portion 25 a and the second flange portion 25 b.
  • the opposing distance between the first branch cylinder part 21 and the second branch cylinder part 22 and the opposing distance between the first flange part 25a and the second flange part 25b are set to a predetermined distance.
  • a projection 28 is formed as a position holding portion for holding. Two protrusions 28 are provided at positions facing each other across the proximal end flow path 6b.
  • the protrusion 28 is also a positioning portion for aligning the circumferential direction positions of the housing main body member 2a and the proximal end side connecting member 2b when the proximal end side connecting member 2b is attached to the housing main body member 2a. is there.
  • the proximal end body 11 described above and the later-described inner end portion which is the edge portion of the proximal end flow path 6 b, of the surface on the distal end side of the flange portion 27.
  • a branch portion 29 that splits the liquid flowing from the proximal end flow path 6b into the first branch flow path 15 and the second branch flow path 16 is formed together with the bottom plate portion 34 in the deformable portion 30 of the valve body 3.
  • the branch portion 29 is constituted by two projecting pieces that project toward the distal end side from a position facing each other across the proximal end flow path 6b among the distal end side surfaces of the flange portion 27. .
  • each gap in the present embodiment is formed at a position where the central angle is deviated by about 90 degrees from the position where the projection 28 is formed in the circumferential direction of the proximal end cylinder portion 8.
  • Examples of the material of the housing main body member 2a and the proximal end side connecting member 2b constituting the housing 2 include polyolefins such as polyethylene, polypropylene, ethylene-propylene copolymer; ethylene-vinyl acetate copolymer (EVA); Polyvinylidene chloride; Polystyrene; Polyamide; Polyimide; Polyamideimide; Polycarbonate; Poly- (4-methylpentene-1); Ionomer; Acrylic resin; Polymethylmethacrylate; Acrylonitrile-butadiene-styrene copolymer (ABS resin) Acrylonitrile-styrene copolymer (AS resin); butadiene-styrene copolymer; polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polycyclohexane terephthalate (PCT) Polyether; Polyetherketone (PEK); Polyetheretherketone (PEEK); Polyetherimi
  • valve body 3 As shown in FIGS. 3A and 3B, the valve body 3 is positioned relative to the housing 2 so that the distal end flow path 6 a defined by the distal end cylindrical portion 7 can be closed and opened. It is attached. Specifically, the valve body 3 includes a deformable portion 30 that can be elastically deformed in the central axis direction A, and a closed position and a distant position where the distal end flow path 6a is blocked by elastic deformation of the deformable portion 30 in the central axis direction A. And a plug portion 31 movable between an open position for opening the distal end flow path 6a.
  • the deformable portion 30 of the present embodiment is configured by a bellows cylinder.
  • the bellows tube body as the deformable portion 30 is a ceiling formed integrally with the bellows tube portion 32 so as to close the bellows tube portion 32 and the hollow portion in the bellows tube portion 32 at one end side of the bellows tube portion 32.
  • a plate portion 33 and a bottom plate portion 34 formed integrally with the bellows tube portion 32 so as to close the hollow portion at the other end side of the bellows tube portion 32 are provided.
  • the bellows tube portion 32 When the bellows tube portion 32 is compressed in the central axis direction A, the bellows tube portion 32 can be easily elastically deformed in the central axis direction A while the bellows is folded and compressed and deformed.
  • the top plate part 33 has closed the hollow part in the one end side of the bellows cylinder part 32, and in this embodiment, the bellows cylinder part 32 and the top plate part 33 partition the inner cylinder part 17 of the housing 2. Is accommodated in the accommodating space S.
  • the bottom plate part 34 has an outer edge part 34 a extending radially outward from the outer wall of the bellows cylinder part 32, and the outer edge part 34 a is connected to the proximal end of the inner cylinder part 17 in the housing 2 and a protruding piece (branch). It is clamped and compressed by the distal end of part 29).
  • the bellows cylinder as the deformable portion 30 is fixed in the position of the bottom plate portion 34 in the housing 2, and the bellows tube portion 32 and the top plate portion 33 move in the central axis direction A with respect to the bottom plate portion 34. be able to.
  • the plug portion 31 of the present embodiment is configured by a plug body.
  • the plug body as the plug portion 31 is configured to be movable between a closed position where the distal end flow channel 6a is closed by elastic deformation of the deformable portion 30 and an open position where the distal end flow channel 6a is opened. .
  • the plug body of the present embodiment is located in the housing 2 and is located outside the housing 2 by being connected to the main body 35 and a rod-shaped main body 35 that is movable in the distal end flow path 6a. And an arm portion 36 as an engaging portion that engages with the female connector 100 when the distal end cylindrical portion 7 is inserted into the female connector 100 and moves the main body portion 35 within the housing 2. Yes.
  • the main body 35 has a substantially cylindrical outer shape, and the main body 35 protrudes radially outward from the outer wall thereof, and an annular protrusion 37 that contacts the inner peripheral surface of the inner cylindrical portion 17 of the housing 2.
  • a distal end portion 38 that enters the distal end flow path 6a in the distal end cylindrical portion 7 of the housing 2 and can close the distal end flow path 6a is provided.
  • the main body portion 35 of the plug body as the plug portion 31 passes through the opening communicating with the trunk channel 6 c formed at the distal end of the inner cylinder portion 17. It is disposed across the trunk portion flow path 6c and the inner cylinder portion 17 that partitions the accommodation space S. And as shown to Fig.3 (a) and FIG.3 (b), the flow path 6 and the accommodation space S have the state in which the plug body as the plug part 31 exists in the obstruction
  • the state in which the plug portion is in the closed position for closing the distal end flow path may be a state in which the distal end flow path is closed by the plug portion.
  • the distal end portion of the main body portion 35 is used. 38 is fitted into the distal end flow path 6a, and the distal end portion 38 is in close contact with the inner peripheral surface of the distal end cylindrical portion 7, thereby meaning that the distal end flow path 6a is closed (see FIG. 3 (a)).
  • the state in which the plug portion is in the open position for opening the distal end flow path may be a state in which the distal end flow path is not blocked by the plug portion.
  • the tip of the main body portion 35 is used. The portion 38 is not located in the distal end flow channel 6a but is located only in the trunk flow channel 6c, and the distal end flow channel 6a and the hollow portion 13 of the distal end side barrel 10 are directly connected. (Refer to FIG. 3B).
  • the space connecting the accommodation space S and the flow path 6 is blocked by the plug, and is separated so that the accommodation space S and the flow path 6 do not communicate with each other.
  • the annular protrusion 37 in the main body portion 35 of the plug body is located in the inner cylinder portion 17, and the annular protrusion 37 is arranged around the inner cylinder portion 17. In the entire direction (the same direction as the circumferential direction C of the outer cylinder portion 18), the inner circumferential surface of the inner cylinder portion 17 is abutted and the inner circumferential surface of the inner cylinder portion 17 is pressed and brought into close contact.
  • the annular protrusion 37 constitutes a seal portion formed between the outer wall of the main body portion 35 of the plug body as the plug portion 31 and the inner wall of the inner cylinder portion 17.
  • the configuration of the seal portion is not limited to the annular protrusion 37 of the present embodiment.
  • an elastic member such as an O-ring is provided between the outer peripheral surface of the main body portion 35 and the inner peripheral surface of the inner cylinder portion 17. It is also possible to configure the seal portion with a seal member separate from the plug portion 31 and the inner cylinder portion 17, which is interposed between the plug portion 31 and the inner cylinder portion 17.
  • the base end portion (proximal end side end portion) of the main body portion 35 is in contact with the top plate portion 33 of the bellows cylinder as the deformable portion 30. Therefore, the bellows cylinder 32 is compressed and elastically deformed when the main body 35 moves to the proximal end side (see FIG. 3B).
  • the plug body as the plug section 31 can move in the central axis direction A following the elastic deformation of the bellows cylinder as the deformation section 30.
  • the plug body as the plug section 31 moves from the open position to the closed position by the restoring force of the bellows cylinder body as the deformation section 30, the plug body falls off from the distal end cylinder section 7 to the outside.
  • an abutting portion on the housing 2 so as not to be present.
  • a protrusion 60 as an abutting portion that protrudes toward the distal end flow path 6 a on the inner wall of the distal end cylindrical portion 7.
  • the arm portion 36 as the engaging portion extends substantially in parallel with the main body portion 35, and a tip end of the arm portion 36 abuts the female connector 100 when connected to the female connector 100, and the main body portion 35 and the rod-like portion.
  • the plug body as the plug portion 31 of the present embodiment has two arm portions 36 at positions facing each other with the main body portion 35 interposed therebetween.
  • the connecting portion 36b is projected from the outer wall of the main body portion 35 toward the radially outer side at the base end portion of the main body portion 35. As shown in FIGS. 4A and 4B, the connecting portion 36 b protrudes outward of the housing 2 through the notch 20 of the housing 2.
  • the rod-shaped portion 36a is formed continuously from the end portion of the connecting portion 36b, and extends from the end portion of the connecting portion 36b toward the distal end side.
  • the tip (distal end) of the rod-shaped part 36a is disposed so as to abut against the top surface of the cap 103 (see FIG. 1) of the female connector 100. That is, when the male connector 1 is connected to the female connector 100, the tip of the rod-shaped portion 36a engages with the female connector 100, and the main body portion 35 connected to the rod-shaped portion 36a via the connecting portion 36b is the housing 2.
  • the plug body 31 as the plug portion 31 can be moved between the closed position and the open position. Note that when the plug body as the plug portion 31 moves between the closed position and the open position, the connecting portion 36 b moves in the notch 20 of the housing 2.
  • valve body 3 of this embodiment is comprised with the bellows cylinder as the deformation
  • the deformable portion 30 and the plug portion 31 can be configured by a combination of three or more members.
  • the bellows cylinder as the deformable portion 30 of the present embodiment is molded and formed to be elastically deformable.
  • Examples of the material of the bellows cylinder include natural rubber, isoprene rubber, butadiene rubber, styrene-butadiene rubber, nitrile rubber, chloroprene rubber, butyl rubber, acrylic rubber, ethylene-propylene rubber, hydrin rubber, urethane rubber, silicone rubber, and fluorine.
  • Rubber materials such as rubber, various thermoplastics such as styrene, polyolefin, polyvinyl chloride, polyurethane, polyester, polyamide, polybutadiene, trans polyisoprene, fluororubber, chlorinated polyethylene
  • thermoplastics such as styrene, polyolefin, polyvinyl chloride, polyurethane, polyester, polyamide, polybutadiene, trans polyisoprene, fluororubber, chlorinated polyethylene
  • An elastomer may be mentioned, and one or a mixture of two or more of these may be used.
  • the same material as that of the housing 2 described above can be used.
  • FIG. 7 is a perspective view showing the claw member 4 alone. As shown in FIG. 7, the claw member 4 extends in the thickness direction of the bottom plate portion 50 from a flat bottom plate portion 50 that divides a substantially circular opening at the center, and from an outer edge facing the bottom plate portion 50. And two curved plate-like side plate portions 51a and 51b.
  • the housing 2 is disposed so as to penetrate the opening of the bottom plate portion 50, and the inner edge portion of the bottom plate portion 50 that defines the opening is formed on the outer peripheral surface of the outer cylinder portion 18 of the housing 2.
  • the long groove 24 is fitted. Therefore, the claw member 4 is restricted from moving with respect to the housing 2 in the central axis direction A.
  • Steps formed on the holder 107 of the female connector 100 are provided at the front end portions of the side plate portions 51a and 51b so that the male connector 1 is not removed from the female connector 100 when the male connector 1 and the female connector 100 are connected.
  • Claw portions 39a and 39b that are hooked on 106 are formed.
  • the material similar to the above-mentioned housing 2 can be used.
  • FIG. 8 is a perspective view showing a single cover member 5.
  • the cover member 5 includes a bottom plate portion 40 that defines a substantially circular opening at the center, and a cylindrical cover tube portion 41 that is formed integrally with the outer edge of the bottom plate portion 40. It has.
  • the housing 2 is disposed so as to penetrate the opening of the bottom plate portion 40.
  • the cover tube portion 41 is located on the radially outer side (the left side and the right side in the cross-sectional view of FIG. 3) with respect to the housing 2 and the side plate portions 51a and 51b, and around the housing 2 and the side plate portions 51a and 51b.
  • the inner wall of the cover tube portion 41 is arranged in contact with the outer walls of the side plate portions 51 a and 51 b of the claw member 4.
  • the cover member 5 can move in the central axis direction A while the inner edge of the bottom plate portion 40, that is, the inner surface defining the opening slides with the outer wall of the outer cylinder portion 18 of the housing 2. As the cover tube portion 41 moves in the central axis direction A of the bottom plate portion 40, the inner surface thereof moves in the central axis direction A while sliding with the outer walls of the side plate portions 51 a and 51 b of the claw member 4.
  • the cover cylinder part 41 of the cover member 5 includes a first position where the inner wall of the cover cylinder part 41 is located radially outside the claw parts 39 a and 39 b of the claw member 4, and the cover cylinder part 41.
  • the inner wall is configured to be movable in the central axis direction A between a second position that is not located radially outward with respect to the claw portions 39a and 39b.
  • the inner wall of the cover cylinder part 41 in the first position is in contact with the outer walls of the side plate parts 51a and 51b at a position radially outside the claw parts 39a and 39b.
  • the inner wall of the cover cylinder part 41 in the second position is not in contact with the outer walls of the side plate parts 51a and 51b at a position radially outside the claw parts 39a and 39b.
  • the tip portions of the side plate portions 51a and 51b where the claw portions 39a and 39b are formed are easily elastically deformed so as to expand radially outward.
  • the cover tube portion 41 in the state where the cover tube portion 41 is in the first position, compared to the state where the cover tube portion 41 is in the second position, it is difficult for the tip portions of the side plate portions 51a and 51b to elastically deform so as to expand radially outward.
  • the medical worker elastically deforms so that the facing distance between the side plate portions 51a and 51b is increased by connecting and disconnecting the male connector 1 and the female connector 100 with the cover tube portion 41 as the second position.
  • both can be easily connected and disconnected.
  • release can be suppressed by making the cover cylinder part 41 into a 1st position.
  • cover member 5 of this embodiment the material similar to the above-mentioned housing 2 can be used.
  • the accommodation space S of the present embodiment is partitioned by the housing 2 and the valve body 3 so as not to communicate with the flow path 6. Specifically, the housing space S is surrounded by the inner cylinder portion 17 of the housing 2, the plug body as the plug portion 31 of the valve body 3, and the bellows cylinder body as the deformation portion 30 of the valve body 3.
  • an opening leading to the hollow portion 13 of the distal end side body portion 10 is formed at the distal end of the inner cylinder portion 17, and the proximal end side body portion 11 is formed at the proximal end of the inner cylinder portion 17.
  • the opening on the distal end side of the inner cylinder portion 17 is partitioned and closed by a plug body as the plug portion 31, and the proximal end side of the inner cylinder portion 17 is formed. Is closed by a bottom plate portion 34 of the bellows cylinder as the deformable portion 30. Therefore, as shown in FIG. 3, the accommodation space S in which the bellows tube portion 32 and the top plate portion 33 of the bellows tube body are located does not communicate with the flow path 6.
  • the main body portion 35 of the plug body as the plug portion 31 is disposed across the flow path 6 and the inner cylinder portion 17 so as not to communicate the flow path 6 and the accommodation space S. More specifically, the distal end flow path 6a is closed while the outer peripheral surface of the main body portion 35 and the inner peripheral surface of the inner cylinder portion 17 are in close contact with each other to form a seal portion. It can move between a position to be opened (see FIG. 3A) and a position to be opened (see FIG. 3B). Therefore, for example, even if the distal end flow path 6a is opened for priming and the distal end flow path 6a is closed again after priming, the flow path 6 in the male connector 1 remains in the housing space S during this operation. Since it does not communicate, it can suppress that air enters the flow path 6 from the accommodation space S and bubbles are generated in the liquid. Therefore, the risk of air bubbles being carried into the patient's body during infusion after priming can be reduced.
  • the accommodation space S of the present embodiment communicates with the outside of the housing 2, that is, the outside of the male connector 1 through the notch 20 formed as an opening formed in the housing 2. Therefore, the bellows tube portion 32 of the bellows tube body is compressed and deformed in the housing space S by being pushed into the plug body as the plug portion 31 (see FIG. 3B), and the volume of the housing space S is reduced.
  • the air in the accommodation space S is positively discharged to the outside of the housing 2 through the notch 20. Therefore, it is possible to further suppress the air in the accommodation space S from entering the flow path 6 through between the main body portion 35 and the inner cylindrical portion 17 of the plug body.
  • the bellows cylinder as the deformable portion 30 defines a sealed internal space.
  • an opening is formed in the bellows cylinder portion 32, and the air in the bellows cylinder portion 32 is You may make it discharge
  • FIG. With such a configuration, the deformable portion 30 can be more easily compressed and deformed than the configuration in which no opening is formed in the bellows tube portion 32, and the male connector 1 and the female connector 100 are connected. Operability can be improved.
  • the accommodation space S of the present embodiment includes an opening on the distal end side and an opening on the proximal end side of the inner cylindrical portion 17 of the housing 2, a main body portion 35 of the plug body, and a bottom plate portion 34 of the bellows cylindrical body.
  • the present invention is not limited to this configuration.
  • the bottom plate portion that closes the hollow portion of the inner cylinder portion on the proximal end side is formed integrally with the inner cylinder portion.
  • the housing space may be formed by the inner cylinder portion and the plug body.
  • FIGS. 9 is a cross-sectional perspective view showing the VV cross section of FIG. 1
  • FIG. 10 is a view showing a state where the male connector 1 and the female connector 100 are connected in the same cross-sectional view as FIG. 11 is a cross-sectional perspective view showing a VI-VI cross section of FIG. 1
  • FIG. 12 is a view showing a state where the male connector 1 and the female connector 100 are connected in the same cross-sectional view as FIG. is there.
  • 9 and 10 (VV cross section in FIG. 1) is centered on the central axis O (see FIG. 3 etc.) from the cross section shown in FIG. 11 and FIG. 12 (VI-VI cross section in FIG. 1). A cross section at a position where the central angle is shifted by 90 degrees is shown.
  • a plug portion 31 is provided in the distal end flow path 6 a of the distal end tubular portion 7 of the housing 2.
  • the main body 35 of the plug body enters and closes the distal end flow path 6a. That is, in the state shown in FIGS. 9 and 11, the plug body as the plug portion 31 is in the closed position where the distal end flow path 6 a is closed.
  • the substantially cylindrical tip portion 38 of the main body portion 35 is fitted into the distal end cylinder portion 7, and the outer peripheral surface of the tip portion 38 is in the entire circumferential direction with the inner peripheral surface of the distal end cylinder portion 7. It is in the state which contact
  • the rod-like portion 36a is pushed by the cap 103 and moves to the proximal end side with respect to the housing 2. Further, the main body portion 35 connected to the rod-like portion 36a via the connecting portion 36b also moves in the distal end tubular portion 7 toward the proximal end side as the rod-like portion 36a moves. Further, as the plug portion 31 moves, the distal end cylinder portion 7 of the housing 2 is inserted into the insertion port 101 of the female connector 100 through the slit 105 of the elastic valve body 104.
  • FIGS. 10 and 12 show a state after the tip portion 38 of the main body portion 35 has moved from the distal end flow channel 6a into the trunk flow channel 6c. That is, in the state shown in FIG.10 and FIG.12, the plug body as the plug part 31 exists in the open position which open
  • the distal end flow path 6a is not blocked by the plug portion 31, and thus flows into the proximal end tubular portion 8.
  • a liquid such as a chemical solution is used for the proximal end channel 6b, the hollow portion 14 (see FIG. 3), the first branch channel 15 (or the second branch channel 16) (see FIG. 3), and the hollow portion 13 (see FIG. 3). ), It passes through the flow path 6 in the male connector 1 in the order of the distal end flow path 6a, and flows into the flow path 102 of the female connector 100 (see the arrow in FIG. 10).
  • connection between the male connector 1 and the female connector 100 is completed when the claw portions 39a and 39b of the claw member 4 are caught by the step portion 106 (see FIGS. 1 and 9) of the female connector 100. That is, the state shown in FIGS. 10 and 12 shows a state in which the claw portions 39a and 39b are hooked on the step portion 106 and the connection between the male connector 1 and the female connector 100 is completed.
  • the male connector 1 of the present embodiment includes claw portions 39a and 39b that engage with the stepped portion 106 (see FIGS. 1 and 9) of the female connector 100, and the claw portions 39a and 39b allow the male connector 1 to Although the connection state with the female connector 100 is more reliably maintained, the fixing member that fixes the connection between the male connector and the female connector is not limited to this configuration.
  • the fixing member may be a male member.
  • the male connector is provided with a cylindrical portion in which a female screw portion that is screwed with the male screw portion of the female connector is provided. Also good.
  • FIG. 14 is a view showing an infusion set 70.
  • description is abbreviate
  • the infusion set 70 constitutes an infusion line that connects from an infusion holder such as an infusion bag (not shown in FIG. 14) to an indwelling needle (not shown in FIG. 14).
  • the infusion set 70 includes a medical tube 71, a bottle needle 72 that can puncture the infusion holder, a drip tube 73 that can visually check the flow rate of a liquid such as a chemical solution supplied from the infusion holder, Adjustment clamp 74 that can change the flow rate of the liquid in the medical tube 71 into a plurality of states, a closing clamp 75 that closes the medical tube 71, and a male connector connected to the distal end of the medical tube 71 1 is provided.
  • the distal end of the medical tube 71 is fixed to the proximal end cylinder portion 8 by adhesion or the like while being inserted into the proximal end cylinder portion 8 of the male connector 1.
  • 1 is liquid-tightly connected. That is, the male connector 1 constitutes a distal end portion of an infusion line constituted by the infusion set 70.
  • the bottle needle 72 is punctured into the infusion holder before administration, and the plug portion 31 of the male connector 1 is opened using a dedicated cap member or the like before administration. Priming is performed by moving to. Then, after priming, the cap member is removed from the male connector 1, and the plug portion 31 is returned to the closed position again.
  • the male connector 1 is connected to the female connector 100 (see FIGS. 1 and 9 to 12) attached to the proximal end portion of the indwelling needle placed in the body, so that the plug portion 31. Moves to the open position, so that a liquid such as a medicinal solution in the infusion holder can be supplied into the patient's body via the flow path 6 in the male connector 1 and the flow path 102 in the female connector 100. .
  • the plug portion 31 of the male connector 1 returns to the closed position by the restoring force of the deformable portion 30 in conjunction with the removal operation. And it can suppress that the liquid in the male connector 1 leaks outward from the distal end cylinder part 7, and can reduce the risk that a medical worker will touch liquids, such as a chemical
  • the infusion set 70 of this embodiment is comprised by the structural member mentioned above, it is not restricted to this structure, for example, the infusion set containing another structural member, such as a connector, may be sufficient, An infusion set that does not include a part of the constituent members described above may be used.
  • the male connector and the infusion set according to the present invention can be realized by various specific configurations, and are not limited to the configurations shown in the above-described embodiments, but are the gist of the invention described in the claims. Various modifications are possible without departing from the scope of the present invention.
  • “communication” means not only that the spaces are adjacent and directly connected but also that they are connected via another space. Therefore, for example, the distal end channel 6a of the male connector 1 described above is connected to the proximal end channel 6b via the trunk channel 6c, and the distal end channel 6a is connected to the proximal end channel 6b. Communicated with.
  • the present invention relates to a male connector and an infusion set.

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Pulmonology (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)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

L'invention concerne un connecteur mâle et un ensemble de perfusion qui comprennent : un boîtier qui a une partie cylindrique d'extrémité distale, qui peut être insérée dans un connecteur femelle, et qui délimite intérieurement un trajet d'écoulement comprenant un trajet d'écoulement d'extrémité distale qui est délimité par la partie cylindrique d'extrémité distale ; et un corps de valve qui peut bloquer et débloquer le trajet d'écoulement d'extrémité distale. Le corps de valve comprend une partie de déformation élastiquement déformable et une partie de fiche qui peut se déplacer entre une position de blocage, dans laquelle une déformation élastique de la partie de déformation amène le trajet d'écoulement d'extrémité distale à être bloqué, et une position de déblocage, dans laquelle le trajet d'écoulement d'extrémité distale est débloqué. Le boîtier délimite un espace de logement qui loge la partie de déformation, et l'espace de logement et le trajet d'écoulement sont séparés par la partie de fiche lorsque la partie de fiche est dans la position de blocage et la position de déblocage.
PCT/JP2016/000882 2015-03-26 2016-02-18 Connecteur mâle et ensemble de perfusion WO2016152016A1 (fr)

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Cited By (2)

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CN110384858A (zh) * 2018-04-18 2019-10-29 蔡溪进 防止药液或体液外漏的输液封闭型接头
US11235135B2 (en) 2018-03-19 2022-02-01 Hsi-Chin Tsai Body-fluid-and-medication leak-proof and closed medical connector

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JP2012522577A (ja) * 2009-04-06 2012-09-27 ケアフュージョン ３０３、インコーポレイテッド ニードルレスアクセスデバイスで使用する閉鎖雄型ルアーデバイス

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US6228069B1 (en) * 1999-04-05 2001-05-08 Filtertek Inc. Needleless access device
US6482188B1 (en) * 1999-10-01 2002-11-19 Mission Medical Devices, Inc. Nonvented needle-free injection valve
JP2012512726A (ja) * 2008-12-19 2012-06-07 アイシーユー・メディカル・インコーポレーテッド 閉鎖可能なルアーコネクタを備える医療用コネクタ
JP2012521256A (ja) * 2009-03-22 2012-09-13 エルカム メディカル アグリカルチュラル コーオペラティブ アソシエーション リミテッド 閉じた雄ルアーコネクター
JP2012522577A (ja) * 2009-04-06 2012-09-27 ケアフュージョン ３０３、インコーポレイテッド ニードルレスアクセスデバイスで使用する閉鎖雄型ルアーデバイス

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11235135B2 (en) 2018-03-19 2022-02-01 Hsi-Chin Tsai Body-fluid-and-medication leak-proof and closed medical connector
US11865293B2 (en) 2018-03-19 2024-01-09 Hsi-Chin Tsai Body-fluid-and-medication leak-proof and closed medical connector
CN110384858A (zh) * 2018-04-18 2019-10-29 蔡溪进 防止药液或体液外漏的输液封闭型接头
CN110384858B (zh) * 2018-04-18 2021-05-18 蔡溪进 防止药液或体液外漏的输液封闭型接头

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JP6709777B2 (ja) 2020-06-17
JPWO2016152016A1 (ja) 2018-01-18

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