WO2024135075A1 - 医療機器接続構造及び医療機器 - Google Patents

医療機器接続構造及び医療機器 Download PDF

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Publication number
WO2024135075A1
WO2024135075A1 PCT/JP2023/037906 JP2023037906W WO2024135075A1 WO 2024135075 A1 WO2024135075 A1 WO 2024135075A1 JP 2023037906 W JP2023037906 W JP 2023037906W WO 2024135075 A1 WO2024135075 A1 WO 2024135075A1
Authority
WO
WIPO (PCT)
Prior art keywords
flow path
rotating
path connection
connection
medical device
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2023/037906
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English (en)
French (fr)
Japanese (ja)
Inventor
和矢 秋山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Terumo Corp
Original Assignee
Terumo Corp
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 Terumo Corp filed Critical Terumo Corp
Priority to JP2024565629A priority Critical patent/JPWO2024135075A1/ja
Priority to CN202380086058.XA priority patent/CN120379720A/zh
Publication of WO2024135075A1 publication Critical patent/WO2024135075A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/08—Screw-threaded joints; Forms of screw-threads for such joints with supplementary elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00—Joints with sleeve or socket

Definitions

  • This disclosure relates to a medical device connection structure and a medical device.
  • a medical device connection structure includes a first connector having a first flow path connection part and a rotating part that can rotate around the central axis of the first flow path connection part relative to the first flow path connection part when rotated, and a second connector having a second flow path connection part and a locking part provided on the outer periphery of the second flow path connection part, the rotating part having a screwing part that can be screwed into the inner periphery of the locking part when the first flow path connection part is connected to the second flow path connection part (see, for example, Patent Document 1).
  • the present disclosure therefore aims to provide a medical device connection structure and medical device that are less likely to come loose unintentionally.
  • a first connector having a first flow path connection portion and a rotating portion that is rotatable around a central axis of the first flow path connection portion relative to the first flow path connection portion by receiving a rotating operation;
  • a second connector including a second flow path connecting portion and a lock portion provided on an outer circumferential side of the second flow path connecting portion and connectable to the first connector;
  • the first flow path connection portion has a first screw portion that can be screwed into an inner circumferential surface of the lock portion
  • the rotation portion has a second screw portion that can be screwed into the inner circumferential surface of the lock portion, a regulating portion that, when the first flow path connection portion is connected to the second flow path connection portion and the first screw portion and the second screw portion are screwed into the locking portion, rotates the rotating portion by contacting the rotating portion, while allowing the rotating portion to rotate relative to the first flow path connection portion, and regulates movement of the rotating portion toward the connection port in the axial direction along the central axis of the first flow path connection
  • the rotating portion is movable in the axial direction relative to the first flow path connecting portion toward the connection port side and toward a non-connection port side, the non-connection port side being the opposite side,
  • the pivot portion has at least one recess
  • the first flow path connection portion has a protruding portion protruding radially outward from the central axis,
  • the medical device connection structure according to any one of [1] to [3], wherein the surface of the protrusion on the non-connection port side constitutes the restricting portion.
  • the rotating portion is annular,
  • the medical device connection structure according to any one of claims [1] to [6], wherein the outer peripheral surface of the rotating portion has the second screw-type portion.
  • the first fluid connection is configured as a female luer part;
  • the medical device connection structure according to any one of [1] to [10], wherein the second flow path connection portion is configured as a male luer portion.
  • the medical device connection structure according to any one of [1] to [11], comprising a medical device having the first connector and at least one other connector having a connection port communicating with the connection port of the first flow path connection portion of the first connector.
  • a medical device comprising: a first connector having a first flow path connection portion and a rotating portion that is rotatable around a central axis of the first flow path connection portion relative to the first flow path connection portion by receiving a rotating operation; the first connector is connectable to a second connector having a second flow path connection portion and a lock portion provided on an outer circumferential side of the second flow path connection portion, the first flow path connection portion has a first screw portion that can be screwed into an inner circumferential surface of the lock portion, the rotation portion has a second screw portion that can be screwed into the inner circumferential surface of the lock portion, the first flow path connection portion is connected to the second flow path connection portion, and when the first screw portion and the second screw portion are screwed into the lock portion, the first flow path connection portion has a rotation operation on the rotating portion, which, by contacting the rotating portion, restricts movement of the rotating portion toward the connection port in the axial direction along the central axis of the first flow path connection portion while allowing rotation of the rotating
  • the present disclosure provides a medical device connection structure and a medical device that are less likely to come loose unintentionally.
  • FIG. 1 is an external view showing a first medical device in a medical device connection structure according to one embodiment.
  • FIG. FIG. 2 is a partially enlarged view of FIG.
  • FIG. 3 is an exploded view of the first connector shown in FIG. 2 .
  • 11 is a partial cross-sectional view showing a state when connection of the second connector to the first connector is started;
  • FIG. 5 is a partial cross-sectional external view showing a state when the state shown in FIG. 4 is changed to a quasi-connected state;
  • FIG. 6 is a partial cross-sectional external view showing a state where a rotation operation is performed on the rotation portion from the state shown in FIG. 5 and the rotation portion is restricted by the restricting portion;
  • FIG. 7 is a cross-sectional view showing a state where a further rotation operation is performed from the state shown in FIG. 6 and connection is completed.
  • a medical device connection structure 1 includes a first connector 4 (see Figure 1, etc.) having a first flow path connection portion 2 and a rotating portion 3 that can be rotated around the central axis O of the first flow path connection portion 2 relative to the first flow path connection portion 2 when rotated, and a second connector 7 (see Figure 4, etc.) that has a second flow path connection portion 5 and a lock portion 6 provided on the outer periphery of the second flow path connection portion 5 and can be connected to the first connector 4.
  • a first connector 4 see Figure 1, etc.
  • a rotating portion 3 that can be rotated around the central axis O of the first flow path connection portion 2 relative to the first flow path connection portion 2 when rotated
  • a second connector 7 see Figure 4, etc.
  • the first flow path connection part 2 has a first screw part 8 that can be screwed into the inner circumferential surface of the lock part 6.
  • the rotating part 3 has a second screw part 9 that can be screwed into the inner circumferential surface of the lock part 6.
  • the first flow path connection part 2 has a restricting part 10 that restricts movement of the rotating part 3 toward the connection port side (the side where the connection port 2a is located) in the axial direction along the central axis O of the first flow path connection part 2 while allowing rotation of the rotating part 3 relative to the first flow path connection part 2 by a rotation operation (see the white arrows in Figs. 6 and 7) in a quasi-connected state (the state shown in Fig. 5) in which the first flow path connection part 2 is connected to the second flow path connection part 5 and the first screwing part 8 and the second screwing part 9 are screwed into the locking part 6, as shown in Figs. 6-7.
  • the rotating part 3 can move in the axial direction relative to the first flow path connection part 2 to the connection port side (see the thick arrow in Fig. 6) and to the opposite non-connection port side (see the thick arrow in Fig. 4).
  • the rotating part 3 is in a screwable state due to the movement of the rotating part 3 to the non-connection port side relative to the first flow path connection part 2 (see Fig.
  • the first flow path connection part 2 has a non-connection port side regulating part 11 that regulates the rotation of the rotating part 3 relative to the first flow path connection part 2 and the movement to the non-connection port side by contacting the rotating part 3.
  • the rotating part 3 has at least one recess 12 (see Figures 3 and 4).
  • the number of recesses 12 is two, but this can be increased or decreased.
  • the non-connection port side regulating part 11 is composed of a protrusion 13 that regulates the rotation of the rotating part 3 relative to the first flow path connection part 2 and the movement towards the non-connection port side by contacting at least one recess 12 when the rotating part 3 is in a screwable state due to the movement of the rotating part 3 towards the non-connection port side relative to the first flow path connection part 2. With this configuration, the non-connection port side regulating part 11 can be realized with a simple structure.
  • the first flow path connection portion 2 has a protrusion 14 that protrudes radially outward from the central axis O.
  • the surface of the protrusion 14 on the non-connection port side constitutes the restriction portion 10.
  • the protrusion 14 is provided at the end of the first flow path connection part 2 on the connection port side.
  • the outer peripheral surface of the protrusion 14 has a first screw-fitting portion 8. With this configuration, the first flow path connection portion 2 can be realized with a simple structure.
  • the protrusion 14 is flange-shaped. With this configuration, the first flow path connection part 2 can be realized with a simple structure.
  • the rotating part 3 is annular.
  • the outer peripheral surface of the rotating part 3 has a second screw-type portion 9. With this configuration, the rotating part 3 can be realized with a simple structure.
  • the rotating part 3 has a rotating operation part 15 that protrudes radially outward from the second screw engagement part 9 and can be rotated. With this configuration, the rotating part 3 can be easily rotated via the rotating operation part 15.
  • the rotation operation unit 15 is provided at the end of the rotating unit 3 that is on the non-connection port side. With this configuration, the first connector 4 can be realized with a simple structure.
  • the outer peripheral surface of the rotating operation part 15 has a shape with a series of projections and recesses in the circumferential direction around the entire circumference. This configuration can improve the operability of the rotating part 3.
  • the first screw engagement portion 8 is composed of a first male screw portion. This configuration improves the stability of the connection.
  • the second screw engagement portion 9 is composed of a second male screw portion. This configuration improves the stability of the connection.
  • the inner circumferential surface of the locking portion 6 has a threaded portion 16 that threadably engages with the first threaded portion 8 and the second threaded portion 9.
  • the threaded portion 16 is configured as a female thread. This configuration improves the stability of the connection.
  • the first male thread portion and the second male thread portion have the same pitch. This configuration improves the stability of the connection.
  • the first flow path connection part 2 is configured as a female luer part.
  • the second flow path connection part 5 is configured as a male luer part. This configuration allows for easy connection.
  • the medical device connection structure 1 has a medical device (also referred to as a first medical device 17) having a first connector 4, and a medical device (also referred to as a second medical device 18) having a second connector 7.
  • the first medical device 17 has the first connector 4 and at least one other connector 19 having a connection port that communicates with the connection port 2a of the first flow path connection portion 2 of the first connector 4 (see Figure 1).
  • the number of other connectors 19 is two, but this can be increased or decreased. With this configuration, a stable connection can be achieved between the at least one other connector 19 and the second connector 7 via the first connector 4.
  • the first medical device 17 can be manufactured, for example, by molding the first flow path connection part 2, the rotating part 3, and the other connector 19 by injection molding or the like, inserting the first flow path connection part 2 into the inner cavity of the rotating part 3 to form the first connector 4, and then joining the non-connection port side end of the first connector 4 (first flow path connection part 2) to the connection port side end of the other connector 19.
  • the screw structure between the first connector 4 and the second connector 7 is a double-thread screw structure. This configuration improves the stability of the connection.
  • the locking portion 6 is rotatable relative to the second flow path connection portion 5. This configuration improves the stability of the connection.
  • the constituent materials of the first flow path connection portion 2, the rotating portion 3, the second flow path connection portion 5, and the lock portion 6 include, for example, polyolefins such as polyethylene, polypropylene, and ethylene-propylene copolymers; ethylene-vinyl acetate copolymers (EVA); polyvinyl chloride; polyvinylidene chloride; polystyrene; polyamide; polyimide; polyamideimide; polycarbonate; poly-(4-methylpentene-1); ionomers; acrylic resins; polymethyl methacrylate; acrylonitrile-butadiene-styrene copolymers (ABS resins); acrylonitrile-styrene copolymers (AS resins); butadiene-styrene copolymers.
  • polyolefins such as polyethylene, polypropylene, and ethylene-propylene copolymers
  • EVA ethylene-vinyl acetate copolymers
  • polyesters such as polyethylene terephthalate (PET), polybutylene terephthalate (PBT), and polycyclohexane terephthalate (PCT); polyether; polyether ketone (PEK); polyether ether ketone (PEEK); polyetherimide; polyacetal (POM); polyphenylene oxide; modified polyphenylene oxide; polysulfone; polyether sulfone; polyphenylene sulfide; polyarylate; aromatic polyester (liquid crystal polymer); polytetrafluoroethylene, polyvinylidene fluoride, and other fluorine-based resins. Blends and polymer alloys containing one or more of these may also be used. In addition, various glass materials, ceramic materials, and metal materials may also be used.
  • the medical device connection structure 1 includes a first connector 4 having a first flow path connection portion 2 and a rotating portion 3 that can rotate around the central axis O of the first flow path connection portion 2 relative to the first flow path connection portion 2 when rotated, a second flow path connection portion 5 and a locking portion 6 provided on the outer periphery of the second flow path connection portion 5, and a second connector 7 that can be connected to the first connector 4, the first flow path connection portion 2 has a first screwing portion 8 that can be screwed into the inner periphery of the locking portion 6, and the rotating portion 3 is connected to the inner periphery of the locking portion 6.
  • the medical device connection structure 1 has a second screw-on portion 9 that can be screwed onto the circumferential surface
  • the first flow path connection portion 2 has a restricting portion 10 that, when the first flow path connection portion 2 is connected to the second flow path connection portion 5 and the first screw-on portion 8 and the second screw-on portion 9 are screwed into the locking portion 6, contact with the rotating portion 3 allows the rotating portion 3 to rotate relative to the first flow path connection portion 2 while restricting the movement of the rotating portion 3 toward the connection port in the axial direction along the central axis O of the first flow path connection portion 2.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Anesthesiology (AREA)
  • Pulmonology (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)
PCT/JP2023/037906 2022-12-23 2023-10-19 医療機器接続構造及び医療機器 Ceased WO2024135075A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2024565629A JPWO2024135075A1 (https=) 2022-12-23 2023-10-19
CN202380086058.XA CN120379720A (zh) 2022-12-23 2023-10-19 医疗器械连接构造以及医疗器械

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-207146 2022-12-23
JP2022207146 2022-12-23

Publications (1)

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WO2024135075A1 true WO2024135075A1 (ja) 2024-06-27

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PCT/JP2023/037906 Ceased WO2024135075A1 (ja) 2022-12-23 2023-10-19 医療機器接続構造及び医療機器

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JP (1) JPWO2024135075A1 (https=)
CN (1) CN120379720A (https=)
WO (1) WO2024135075A1 (https=)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004160214A (ja) * 2002-10-23 2004-06-10 Nikkiso Co Ltd 血液浄化装置用継手
JP2005192782A (ja) * 2004-01-07 2005-07-21 Nipro Corp メスコネクタ
US20120123392A1 (en) * 2010-11-16 2012-05-17 Westmed, Inc. Luer connector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004160214A (ja) * 2002-10-23 2004-06-10 Nikkiso Co Ltd 血液浄化装置用継手
JP2005192782A (ja) * 2004-01-07 2005-07-21 Nipro Corp メスコネクタ
US20120123392A1 (en) * 2010-11-16 2012-05-17 Westmed, Inc. Luer connector

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Publication number Publication date
CN120379720A (zh) 2025-07-25
JPWO2024135075A1 (https=) 2024-06-27

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