WO2015154301A1 - Commutateur utilisé à des fins médicales - Google Patents

Commutateur utilisé à des fins médicales Download PDF

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Publication number
WO2015154301A1
WO2015154301A1 PCT/CN2014/075144 CN2014075144W WO2015154301A1 WO 2015154301 A1 WO2015154301 A1 WO 2015154301A1 CN 2014075144 W CN2014075144 W CN 2014075144W WO 2015154301 A1 WO2015154301 A1 WO 2015154301A1
Authority
WO
WIPO (PCT)
Prior art keywords
infusion
joint
connector
seat
solution
Prior art date
Application number
PCT/CN2014/075144
Other languages
English (en)
Chinese (zh)
Inventor
陈永曦
Original Assignee
福建省百仕韦医用高分子股份有限公司
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 福建省百仕韦医用高分子股份有限公司 filed Critical 福建省百仕韦医用高分子股份有限公司
Priority to PCT/CN2014/075144 priority Critical patent/WO2015154301A1/fr
Publication of WO2015154301A1 publication Critical patent/WO2015154301A1/fr

Links

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
    • A61M39/02—Access sites
    • 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
    • A61M39/02—Access sites
    • A61M39/04—Access sites having pierceable self-sealing members
    • 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
    • A61M39/02—Access sites
    • A61M2039/0205—Access sites for injecting media

Definitions

  • the invention relates to a medical medical auxiliary device, which is a connection switch for liquid shunting, confluence and pumping drainage in medical operation, in particular to a medical switch joint.
  • Fig. 1 In the field of existing medical technology, in order to realize the operation of liquid confluence and pumping and drainage, the method shown in Fig. 1 is adopted, which is Y.
  • the type connector is directly connected to the external indwelling catheter to form a multi-channel communication channel, and the Y-connector interface branch end is fixed with a needle infusion connector or a needleless infusion connector, and the infusion connector is used for connecting a medical device such as an infusion set.
  • Intravascular indwelling catheter end need to drive the reverse flow of blood in the catheter, the operation is too cumbersome, if you do not drive blood operation, Y
  • the type joint must be connected with an expensive needle-free joint capable of generating positive liquid flow, which has a small economic burden on the patient; and in the case of intermittent infusion, the liquid injection channel cannot be shut off, and the liquid flow regulating valve is used to cut off the liquid.
  • Flow due to external shutdown switch distance Y There is still a distance between the type joints, which will cause the infusion of the drug solution to diffuse into the truncated lumen, so that the patient is under-medicated. Therefore, in order to achieve intermittent drug delivery, the puncture needle of the infusion system needs to be pulled out to disconnect the liquid supply. When necessary, the puncture needle is re-attached, and then the liquid supply is turned on. In the case of infusion and drainage, there is the same problem as the intermittent infusion, and the above operation is also cumbersome.
  • the object of the present invention is to overcome the deficiencies in the prior art, and to provide a negative pressure without a negative pressure after the infusion is withdrawn, and the medicine injection channel can be shut off, and the intermittent infusion can be performed.
  • the medical switch joint comprises a joint seat, an infusion joint and a liquid outlet joint, and one or two or more infusion joints are respectively connected with the joint seat, and the joint seat is connected with the human body indwelling device catheter through the liquid outlet joint, and the constituent points thereof are: infusion
  • the joint is sealingly connected with the corresponding part of the joint seat in a manner movable relative to the joint seat, and a valve opened or closed by the movement of the infusion joint relative to the joint seat is bridged between the infusion passage of the inner core of the infusion joint and the inner core of the joint seat Between the liquid passages, the infusion passage communicates with the liquid outlet of the liquid outlet joint through the valve and the liquid passage.
  • the infusion connector corresponding to the switch can be arbitrarily turned off or opened through the valve, and the intermittent infusion can be performed, and the operation is convenient. Since the valve is closer to the indwelling device catheter than the heparin cap on the infusion connector, no negative pressure is generated when the puncture needle is withdrawn and the heparin sodium needle is pulled out.
  • This infusion connector essentially becomes the control switch for this valve.
  • the object of the present invention can also be achieved by the following means.
  • the infusion joint is pre-tensioned with the joint spring in a manner of moving up and down relative to the joint seat, and the inflating joint of the lower end of the moving stroke is locked with the joint seat, and is released by the spring to the infusion joint of the high end of the moving stroke. Free, the low end and the high end point respectively correspond to the closing and opening of the valve.
  • the structure of the control switch described above is actually a structure in which the single-pencil ballpoint pen presses and controls the pen core to move up and down.
  • the ball-point pen end pressing head and the refill correspond to the infusion connector of the present application
  • the ball-point pen cylinder is equivalent to the present invention.
  • the infusion joint is connected to the joint seat in a manner of rotating relative to the joint seat, and the two end points of the rotation stroke respectively correspond to the closing and opening of the valve.
  • the axis of this rotational connection either intersects or bisects coaxially or perpendicularly to the axis of the infusion connector.
  • the joint seat has a cylindrical shape, and one end of the infusion joint is sleeved with the cylindrical shape, and the rotation axis of the socket is coaxial with the axis of the cylinder, but obliquely intersects with the axis of the infusion joint, and the circle of the joint seat
  • the cylindrical inner cavity is an over-liquid chamber, and a cylindrical through-hole is penetrated through the cylindrical side wall of the socket, and the infusion port which is rotated to the open end end is connected with the through-hole.
  • the two infusion joints are respectively installed at both ends of the cylindrical joint.
  • the liquid outlet joint is composed of a conical male joint and a movable nut which is inserted into the outer periphery thereof.
  • the rear end of the male joint has a convex ring card whose nut axis movement is limited, and the male joint is inserted into the conical female joint connected with the extracorporeal indwelling catheter.
  • the movable nut and the female connector are screwed together.
  • the outer peripheral surface of the liquid outlet joint and the inner surface of the female joint can be closely matched, so that the liquid outlet channel communicates with the inner cavity of the female joint and the lumen of the indwelling catheter.
  • the present invention has the following advantages over the prior art: after the infusion is finished, the negative pressure is not generated after the puncture needle is withdrawn, and the liquid injection channel can be shut off, and the intermittent infusion can be performed, and the operation is convenient and suitable. Medical use in a variety of occasions.
  • the three-way joint can be used in the direction of reversing, that is, the liquid outlet joint is used as the infusion joint, and the infusion joint is used as the liquid outlet joint. At this time, it can be used for the liquid medicine shunting occasion, that is, one end liquid supply, multi-end liquid discharge, which is a Unexpected effects.
  • Fig. 1 is a schematic view showing the structure of a connector of the prior art connected to a hose of a human external indwelling device.
  • Fig. 2 is a structural schematic view showing the connection of the medical switch joint of the embodiment 1 of the present invention and the hose of the external human body indwelling device.
  • FIG. 3 is a structural schematic view showing the medical switch connector of the preferred embodiment of the present invention connected to the female connector of the external human body indwelling device.
  • Figure 4 is a left side view of the medical switch connector of Figures 2 and 3.
  • FIG. 5 is a cross-sectional view showing the structure of an infusion connector in a medical switch joint according to an embodiment of the present invention.
  • Figure 6 is a left view of Figure 5.
  • FIG. 7 is a schematic diagram of an ON state of a medical switch joint according to an embodiment of the present invention.
  • Connector seat 1.1 Flow through hole 1.2 Outlet channel 1.3 Over-fluid chamber 2 Seal ring 3 End cap 4 Infusion connector 4.1 Infusion channel 4.2 Small hole channel 4.3 Mounting hole 4.4 Rotate the sliding cavity.
  • the medical switch connector consists of the connector seat 1, the infusion connector 4 , the liquid outlet joint and the valve composition
  • the joint seat 1 is a T-shaped body formed by three cylindrical bodies, and the end portions of the upper end cylinders of the T-shaped body are symmetrically arranged with the end cover 3 and the sealing ring 2
  • the lateral cylindrical cavity is the liquid passage 1.3
  • the vertical cylindrical body is the liquid outlet joint
  • the inner cavity is the liquid outlet passage 1.2
  • the liquid outlet passage 1.2 is connected with the liquid passage chamber 1.3.
  • the outer circumference of the upper half of the glyph has a stepped shaft shape, and the liquid outlet joint body is directly fixed to the external indwelling catheter; the lower part of the infusion joint 4 has a rotary sliding cavity 4.4, the cavity and the joint seat 1
  • the outer ends of the stepped shafts at both ends are matched by the transition fit and the sealed joint, and can be freely rotated on the stepped shaft.
  • the axial direction of the bore is at an angle with the axis of the infusion joint, the infusion channel is an inner conical channel, and the bottom of the channel is a small hole.
  • Channel 4.2 It is in communication with the rotary sliding bore 4.4.
  • the annular seal ring 2 is made of medical elastic soft material and is placed in the rotary sliding cavity 4.4.
  • the two end faces are mounted in the cavity, and the end face of the sealing ring 2 is closely attached to the end face of the cavity.
  • Connector seat 1 The stepped shaft at both ends passes through the inner hole of the sealing ring 2 and rotates the sliding cavity 4.4. The end of the shaft is flush with the end surface of the sealing ring 2, and the step surface is in close contact with the other end surface of the sealing ring 2.
  • End cap 3 It is a stepped cylinder, the small end is matched with the two ends of the liquid chamber 1.3 on the joint seat 1 , the small end of the end cover passes through the sealing ring, and is inserted into the hole at both ends of the liquid chamber 1.3 to achieve tight sealing fit, and the end cover 3
  • the intermediate step surface tightly presses the end face of the sealing ring 2 and is fixed to the upper end faces of the upper half of the 1T word of the joint.
  • a through hole is formed in the cylindrical side wall corresponding to the rotating sliding cavity 4.4.
  • the small hole channel 4.2 coincides with the through hole 1.1, and the two are connected, so that the infusion channel 4.1 passes through the small hole channel 4.2, the small hole through the hole 1.2
  • the liquid chamber 1.3 is connected to the liquid outlet channel 1.2.
  • the invention is so effective: when the two infusion joints are in the same plane as the joint seat axis, the infusion joint small hole passage 4.2 and the joint seat through the liquid small hole 1.1 is approximately 90 degrees offset, because the outer peripheral surface of the stepped shaft of the joint seat has a sealing fit with the surface of the rotating sliding cavity of the infusion joint, the infusion channel 4.1 and the overflow chamber 1.3 All are closed, and each channel is different from each other.
  • the other side of the infusion port can be oscillated as described above, so that the other infusion channel communicates with the outlet channel, thus realizing the liquid confluence infusion function, If necessary, any of the channels can be cut off at any time for intermittent infusion. According to medical needs, by oscillating the infusion connector, it is also easy to pump the volume of the suction chamber and infuse the drug.
  • the medical switch connector can be a free-standing three-way switch because the tap connector is not fixedly linked to the hose.
  • the liquid outlet joint is composed of a conical male joint and a movable nut which is inserted into the outer periphery thereof.
  • the rear end of the male joint has a convex ring card, the nut axis movement is limited by the ring card, and the male joint is inserted into the cone connected with the extracorporeal indwelling catheter.
  • the female connector, the movable nut and the female connector are screwed together, and the outer peripheral surface of the liquid outlet joint and the inner surface of the female joint can be closely matched due to the snapping action of the movable nut and the ring card, so that the liquid outlet channel and the female joint cavity and The indwelling catheter lumen is connected.

Abstract

Commutateur utilisé à des fins médicales pour l'écoulement, la convergence et le drainage de liquide dans le cadre d'une perfusion ou d'un prélèvement présentant une tête de contact pour perfusion (4) en contact étanche avec l'emplacement correspondant d'une base (1) de tête de contact et susceptible de se déplacer selon la base (1) de tête de contact qui se déplace en correspondance avec la tête de contact pour perfusion (4) et fait en sorte que la soupape en marche ou à l'arrêt chevauche, dans les contacts pour perfusion (4), le canal de perfusion (4.1) et la cavité (1.3) de passage du liquide dans la base (1) de contact pour perfusion. Le canal de perfusion (4.1) entre en communication avec le canal (1.2) de prélèvement de l'obturateur des contacts de prélèvement moyennant une soupape et la cavité (1.3) de passage du liquide. On évite ainsi, une fois la perfusion terminée et l'aiguille retirée, la pression négative et le blocage du canal de perfusion du médicament même avec une perfusion discontinue En inversant le mode de jonction à trois voies les contacts pour prélèvement tiennent lieu à la fois de contact pour perfusion (4) et de contact pour prélèvement. Applications : dans le domaine de la dérivation d'un médicament liquide, à savoir pour l'acheminement et le prélèvement de liquides.
PCT/CN2014/075144 2014-04-11 2014-04-11 Commutateur utilisé à des fins médicales WO2015154301A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/075144 WO2015154301A1 (fr) 2014-04-11 2014-04-11 Commutateur utilisé à des fins médicales

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/075144 WO2015154301A1 (fr) 2014-04-11 2014-04-11 Commutateur utilisé à des fins médicales

Publications (1)

Publication Number Publication Date
WO2015154301A1 true WO2015154301A1 (fr) 2015-10-15

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Family Applications (1)

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WO (1) WO2015154301A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109045463A (zh) * 2018-10-24 2018-12-21 庞冰冰 一种医用输液转换接头

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4581014A (en) * 1984-04-03 1986-04-08 Ivac Corporation Fluid infusion system
US5618268A (en) * 1995-06-06 1997-04-08 B. Braun Medical Inc. Medical infusion devices and medicine delivery systems employing the same
CN2277166Y (zh) * 1997-02-18 1998-04-01 邓兴环 液体输控器
US6508807B1 (en) * 1998-01-21 2003-01-21 Joseph L Peters Coupling for medical cannulae
WO2009050211A1 (fr) * 2007-10-17 2009-04-23 BSH Bosch und Siemens Hausgeräte GmbH Robinet à boisseau
CN201370832Y (zh) * 2009-03-02 2009-12-30 邱松 一种一次性双通输液器
CN201618217U (zh) * 2010-01-08 2010-11-03 巢齐放 多通路输液器
CN203915620U (zh) * 2014-04-11 2014-11-05 福建省百仕韦医用高分子股份有限公司 医用转动式开关接头
CN203989224U (zh) * 2014-04-11 2014-12-10 福建省百仕韦医用高分子股份有限公司 医用开关接头

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4581014A (en) * 1984-04-03 1986-04-08 Ivac Corporation Fluid infusion system
US5618268A (en) * 1995-06-06 1997-04-08 B. Braun Medical Inc. Medical infusion devices and medicine delivery systems employing the same
CN2277166Y (zh) * 1997-02-18 1998-04-01 邓兴环 液体输控器
US6508807B1 (en) * 1998-01-21 2003-01-21 Joseph L Peters Coupling for medical cannulae
WO2009050211A1 (fr) * 2007-10-17 2009-04-23 BSH Bosch und Siemens Hausgeräte GmbH Robinet à boisseau
CN201370832Y (zh) * 2009-03-02 2009-12-30 邱松 一种一次性双通输液器
CN201618217U (zh) * 2010-01-08 2010-11-03 巢齐放 多通路输液器
CN203915620U (zh) * 2014-04-11 2014-11-05 福建省百仕韦医用高分子股份有限公司 医用转动式开关接头
CN203989224U (zh) * 2014-04-11 2014-12-10 福建省百仕韦医用高分子股份有限公司 医用开关接头

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109045463A (zh) * 2018-10-24 2018-12-21 庞冰冰 一种医用输液转换接头

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