WO2015062101A1 - Pince d'arrêt d'écoulement de cathéter médical apte à une commande à une seule main - Google Patents

Pince d'arrêt d'écoulement de cathéter médical apte à une commande à une seule main Download PDF

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Publication number
WO2015062101A1
WO2015062101A1 PCT/CN2013/086473 CN2013086473W WO2015062101A1 WO 2015062101 A1 WO2015062101 A1 WO 2015062101A1 CN 2013086473 W CN2013086473 W CN 2013086473W WO 2015062101 A1 WO2015062101 A1 WO 2015062101A1
Authority
WO
WIPO (PCT)
Prior art keywords
locking
medical catheter
sleeve
lock lever
movable
Prior art date
Application number
PCT/CN2013/086473
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/CN2013/086473 priority Critical patent/WO2015062101A1/fr
Publication of WO2015062101A1 publication Critical patent/WO2015062101A1/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
    • A61M39/22—Valves or arrangement of valves
    • A61M39/28—Clamping means for squeezing flexible tubes, e.g. roller clamps
    • 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
    • A61M39/28—Clamping means for squeezing flexible tubes, e.g. roller clamps
    • A61M39/284—Lever clamps
    • 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
    • A61M39/28—Clamping means for squeezing flexible tubes, e.g. roller clamps
    • A61M39/286—Wedge clamps, e.g. roller clamps with inclined guides

Definitions

  • the present invention relates to a medical catheter stop clip, and more particularly to a medical catheter stop clip that can be operated with one hand.
  • the catheter at both ends of the stop clip is inevitably pressed by hand, especially the catheter at the front of the stop clip (near the end of the human body) will generate negative pressure due to the release of the hand-held compression, blood It will flow back into the catheter from the blood vessel, causing blood to clot and block the catheter, unable to infuse again, and severe thrombosis may occur, causing damage to the patient.
  • the catheter assembly is placed on the patient's body, and the length of the catheter is limited. If the catheter is inadvertently pulled, the catheter assembly will be pulled out of the patient's body. In order to avoid the above accident, the medical staff should be cautious when operating, sometimes stop the flow. If the length is not enough, it is still not guaranteed to drive the blood inside the catheter clean. Therefore, this operation mode is cumbersome, and the workload and psychological burden of the medical staff are greatly increased, and the negative pressure phenomenon cannot be completely eliminated.
  • the object of the present invention is to overcome the deficiencies in the prior art, and to provide an operation that is simple and convenient, does not generate negative pressure during operation, and does not require drawing a medical catheter, and does not cause an operation accident caused by pulling the medical catheter.
  • the medical catheter stop clip can be operated with one hand.
  • the object of the present invention is achieved by the following route.
  • the medical catheter stop clip can be operated with one hand, including a body and a through-hole for the passage through the medical catheter, and the medical catheter has a clamped state and a relaxed state in the through-hole, the main points of which are:
  • the utility model comprises a movable lock bar, wherein the body is a lock bar locking sleeve, wherein the movable lock bar is longitudinally spaced apart with a horizontally elastically retractable locking convex card and a retaining convex card, and the locking convex card and the retaining convex card are both a locking pawl, the movable locking bar is inserted in the locking rod locking sleeve cavity and one of the longitudinal passage movable locking rods is sleeved with the locking rod locking sleeve, the bottom portion of the locking rod is inserted into the through hole, and the locking convex card and the locking rod are locked When the locking sleeve is touched, the medical catheter is clamped on the clamping surface on the
  • the retaining clip ensures that the movable lock lever is always inserted in the lock lever locking sleeve, and the medical catheter passing through the through hole is always at the clamping surface of the bottom surface of the movable lock rod and the bottom side of the through hole. between.
  • the top surface of the movable lock lever and the lower bottom surface of the lock lever lock sleeve are respectively clamped and compressed by the thumb of the single hand and any other fingers, and the lock lock card is released when the movable lock lever is pressed against the lock lever sleeve to the card contact position.
  • the sleeved section is laterally elastically stretched to engage with the corresponding card position of the lock lever locking sleeve, the medical catheter is clamped, and since the locking convex card is the anti-reverse pawl, the movable locking lever is locked in the reverse direction. After releasing the locking card, the movable locking rod is opened relative to the locking rod locking sleeve, and the medical catheter is no longer clamped in the through-hole, and is in a diastolic state, and the anti-distraction card ensures that the movable locking rod does not disengage from the lock.
  • the plug of the rod locking sleeve is laterally elastically stretched to engage with the corresponding card position of the lock lever locking sleeve, the medical catheter is clamped, and since the locking convex card is the anti-reverse pawl, the movable locking lever is locked in the reverse direction. After releasing the locking card, the movable locking rod is opened relative to the locking rod locking slee
  • the object of the present invention can also be achieved by the following means.
  • the movable lock bar is composed of an elastic piece and a main body, and the two elastic pieces are symmetrically distributed on both sides of the main body and elastically connected with the main body, and the two elastic pieces have lateral expansion and contraction, and the locking convex card and the retaining convex card are sequentially spaced along the longitudinal direction of the elastic piece. Distribution, a total of two locking convex cards and two retaining convex cards are symmetrically distributed on the two elastic pieces, respectively, in the clamped state, the two elastic pieces with the locking convex card and the retaining convex card are inserted in the lock bar locking sleeve In the cavity.
  • the locking convex card can be released.
  • a compression spring can be placed between the elastic piece and the main body to achieve elasticity, but the optimized structure should be:
  • the bottoms of the two elastic pieces are connected with the main body, and the upper part of the bottom part is freely extended upward to form an open jaw shape, and the two clamping jaws respectively have a slot between the main body and the main body, and the main body extends upward and protrudes to form the upper part of the upper jaw.
  • the upper top portion is also exposed outside the lock lever locking sleeve, and both the locking convex card and the retaining convex cam are a pawl fixed on the clamping jaw.
  • the outer sides of the two jaws are inclined or curved, and the two sides of the locking sleeve locking sleeve are provided with two clamping jaws to form two elastic buckles,
  • the bottoms of the two elastic release tabs are connected to the main body, and the upper part of the bottom portion is freely extended upward to form an open jaw shape, and the two jaws respectively have a slot between the lock lever sleeve body and the dew point on the pinch ear respectively. Compressed on the slope or curved surface of the two elastic piece jaws.
  • the bottom structure of the movable lock lever can be further optimized to:
  • the bottom of the movable lock bar is either a slightly blunt tooth shape, or a high or low stepped tooth shape, or a stepped tooth shape of different heights, and the tooth top line intersects or is perpendicular to the axis of the pipe hole.
  • the sleeve portion of the movable lock lever and the lock lever lock sleeve inserted in the lock lever locking sleeve is either located at the upper portion of the movable lock lever or at the upper and lower portions of the movable lock lever.
  • lock bar locking sleeve can be optimized in the following manner:
  • the lock lever locking sleeve includes a main body having a cavity open at one end, and the movable lock rod is inserted into the cavity from the opening, and the cavity is provided with a sleeved section which is sleeved with a corresponding portion of the movable lock lever and
  • the embossing card may be in the free section from above, the lower end of the cavity intersecting the through-hole and the bottom end of the cavity being the clamping face of the medical catheter.
  • the locking convex card on the movable lock lever is sleeved in the socket section; in the clamped state, the locking convex card is also located in the socket section, or enters the free passage through the socket section.
  • the locking cam can use the step of the socket section and the free section joint as the position to be engaged with the lock lever locking sleeve.
  • the side wall of the cavity corresponding to the retaining clip in the free passage is preferably transparent and open.
  • the other end of the free passage further has a sleeve section, and the bottom end of the movable lock rod sequentially passes through the upper sleeve section, the free section, and then enters the sleeve section to be inserted into the sleeve hole.
  • the main body cavity has a socket section at both ends, and the sleeve of the movable lock rod and the lock rod locking sleeve inserted in the cavity has better stability.
  • the clamping surface of the bottom of the locking rod locking sleeve cavity is either a flat surface or a tooth shape corresponding to the tooth shape of the bottom of the movable locking rod and intermeshing.
  • the axis of the through hole of the locking rod locking sleeve may be parallel to the wide surface of the locking sleeve, in the middle of the narrow surface; or may be perpendicular to the wide surface of the locking sleeve, in the middle of the wide surface.
  • the present invention has the following advantages over the prior art: The operation is simple and convenient, no negative pressure is generated during the operation, and the medical catheter is not required to be pulled, and an operation accident caused by pulling the medical catheter is not generated.
  • FIG. 1 is a schematic view showing the structure of an infusion set provided with a flow stop clip in the prior art.
  • FIG. 2 is a schematic perspective view showing the structure of the one-handed medical catheter stop clip according to the first embodiment of the present invention.
  • FIG 3 is a schematic perspective view showing the structure of the movable lock lever in the one-handed medical catheter stop clip according to the first embodiment of the present invention.
  • FIG. 4 is a schematic perspective view showing the structure of a lock lever locking sleeve in the one-handed medical catheter stop clip according to the first embodiment of the present invention.
  • Fig. 5 is a schematic cross-sectional view showing the structure of a lock lever locking sleeve in the one-handed medical catheter stop clip according to the first embodiment of the present invention.
  • FIG. 6 is a schematic view of the one-handed medical catheter stop clip in the clamped state according to the first embodiment of the present invention.
  • FIG. 7 is a schematic view of the one-handed medical catheter stop clip in the pop-up state according to the first embodiment of the present invention.
  • FIG. 8 is a schematic view of the one-handed medical catheter stop clip according to the first embodiment of the present invention in a diastolic state.
  • Figure 9 is a schematic perspective view showing the structure of a one-handed medical catheter stop clip according to a preferred embodiment of the present invention.
  • Figure 10 is a schematic perspective view of the structure of the movable lock bar in the one-handed medical catheter stop clip of the preferred embodiment of the present invention.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • a medical catheter stop clip can be operated with one hand, including a movable lock bar 1 and a lock bar lock sleeve 2, and a bottom portion of the lock bar lock sleeve 2 is used for Through the through hole 2.2.2 of the medical catheter, the medical catheter 3 has a clamped state and a relaxed state in the through-hole 2.2.2.
  • the movable lock bar 1 is longitudinally spaced apart from the horizontally elastically stretchable locking convex card 1.2.2 and the retaining convex card 1.2.4, the locking convex card 1.2.2 and the retaining convex card 1.2.4 are both a kind of anti-reverse spine
  • the claw, the movable lock lever 1 is inserted in the lock lever locking sleeve 2 and one of the longitudinal passage movable lock lever 1 is sleeved with the lock lever locking sleeve 2, the bottom portion of which extends into the through hole 2.2.2, and the locking convex card 1.2.2
  • the medical catheter 3 is clamped on the clamping surface 2.2.3 on the bottom side of the through hole 2.2.2, and the locking convex card 1.2.2 is separated from the lock lever locking sleeve 2. After the card is touched, it enters the above-mentioned socket section 2.1.1.
  • the movable lock lever 1 is relaxed to the limit state, the retaining convex card 1.2.4 is in contact with
  • the movable lock bar 1 is composed of an elastic piece 1.2 and a main body 1.1, and the two elastic pieces 1.2 are symmetrically distributed on both sides of the main body 1.1 and elastically coupled to the main body 1.1.
  • the bottom of the two elastic pieces 1.2 is connected with the main body 1.1, and the upper part of the bottom portion is freely extended upward to form an open jaw shape, and the two clamping jaws respectively have a slot between the main body 1.1, and the main body 1.1 extends upward and protrudes from the two jaws.
  • the upper top 1.3, the upper top 1.3 is also exposed outside the lock lever locking sleeve 2.
  • the locking convex card 1.2.2 and the retaining convex card 1.2.4 are both pawls fixed on the clamping jaws.
  • the two elastic pieces 1.2 have a lateral telescopic spring, and the locking convex card 1.2.2 and the retaining convex card 1.2.4 are sequentially spaced apart along the longitudinal direction of the elastic piece, and there are two locking convex cards 1.2.2 and two non-stopping portions.
  • the convex cards 1.2.4 are symmetrically distributed on the two elastic sheets 1.2, respectively.
  • the outer side of the two jaws 1.2.3 has an oblique curved surface.
  • the bottom of the movable lock bar 1 has a stepped tooth shape of different heights to form a composite clamping rib 1.1.1, and the step tooth top line is perpendicular to the 2.2.2 axis of the pipe hole.
  • the lock lever locking sleeve includes a main body 2.1 and an elastic release tab 2.2, and two sides of the main body 2.1 are correspondingly provided with two jaws to form two Elastic tripping pinch 2.2
  • the bottom of the two elastic release tabs 2.2 is connected to the main body 2.1, and the upper part of the bottom portion is freely extended upward to form an open jaw shape, and each of the two clamping jaws has a slot between the body and the main body 2.1, and the pinch ears respectively have a dew point 2.2. .1 is pressed on the inclined surface of the jaws of the two elastic pieces 1.2.
  • the main body 2.1 has a cavity 2.1.2 which is open at one end, into which the movable lock bar 1 is inserted, and the cavity 2.1.2 is provided with a corresponding portion of the movable lock bar 1
  • the ferrule paragraph 2.1.1 and the detachment convex card 1.2.4 can be in the free paragraph 2.1.3 from above, the lower end of the cavity 2.1.2 intersects the through hole 2.2.2 and the bottom end face 2.2.3 is The clamping surface of the medical catheter 3.
  • the other end of the free passage 2.1.3 also has a socket section 2.1.1.
  • the bottom end of the movable lock lever 1 passes through the previous socket section 2.1.1, and the free passage 2.1.3 enters the socket section 2.1. .1 Socket and then extend into the tube hole 2.2.2.
  • both ends of the body cavity 2.1.2 have a socket section 2.1.1.
  • the side wall of the cavity corresponding to the detachment convex card 1.2.4 is opened and opened.
  • the clamping surface 2.2.3 at the bottom of the locking sleeve locking sleeve cavity is a combination of a flat surface and a groove.
  • the locking rod locks the through hole 2.2.2
  • the axis is parallel to the wide side of the locking sleeve and is in the middle of the narrow side.
  • the locking convex card 1.2.2 on the movable lock lever 1 is sleeved in the socket section 2.1.1 or the socket section 2.1.1 is ejected; in the clamped state, the convex card is locked 1.2. 2 through the socket section 2.1.1 into the free paragraph 2.1.3, at this time, the locking convex card 1.2.2 uses the step of the joint between the paragraph 2.1.1 and the free paragraph 2.1.3 as the locking rod locking sleeve 2 The location of the card touch.
  • Upper locking plane 1.2.1 Resisting in the socket section 2.1.1 The lower edge surface, at this time, the medical catheter 3 is subjected to the movable locking bar 1 at the bottom of the composite clamping rib 1.1.1 and the locking sleeve clamping surface 2.2.3 co-extruded, the medical catheter 3 inner wall is closely attached to the non-permeable gap, the medical catheter 3 channels are cut off.
  • the locking and clamping structure has no over-limit and over-pressure operation during the clamping process, so that the medical catheter 3 does not occur after the finger is released. Rebounding causes negative pressure in the lumen of the tube, and the body fluid in the patient is not inhaled into the medical catheter end of the patient, thereby avoiding blockage of the medical catheter and prolonging the indwelling time of the medical catheter.
  • the lock lever elastic piece 1.2 Since the lock lever elastic piece 1.2 has a retaining convex card 1.2.4, the movable lock lever 1 After the pop-up is released, the elastic piece 1.2 is restored to the original state, and the stop-locking card 1.2.4 is stopped. The movable lock lever 1 does not completely disengage from the locking rod locking sleeve cavity 2.1.2, which facilitates the re-clamping operation.
  • the medical catheter retaining clip can be operated with one hand, and the locking rod locking sleeve 2 is inserted through the tube hole.
  • the axis is perpendicular to the wide face of the locking sleeve and is in the middle of the wide face.
  • the bottom of the movable lock bar 1 has a slightly blunt tooth shape at the top.

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  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

L'invention concerne une pince d'arrêt d'écoulement de cathéter médical apte à une commande à une seule main, comprenant un corps et un trou traversant de cathéter (2.2.2) situé sur le corps et utilisé pour passer à travers des cathéters médicaux, les cathéters médicaux ayant un état serré et un état diastolique dans le trou traversant de cathéter, comprenant également un levier actif (1), son corps étant un manchon de verrouillage de levier de verrou (2), le levier de verrou actif (1) comprenant longitudinalement une carte convexe verrouillée (1.2.2) et une carte convexe anti-prolapsus (1.2.4) extensibles latéralement élastiquement à intervalles réguliers, la carte convexe verrouillée (1.2.2) et la carte convexe anti-prolapsus (1.2.4) étant toutes les deux un linguet antirecul, et le levier de verrou actif étant interposé dans la cavité du manchon de verrouillage de levier de verrou, et un levier de verrou actif à passage longitudinal étant relié par manchon au manchon de verrouillage de levier de verrou. Par comparaison avec l'état antérieur de la technique, la pince de la présente invention a les avantages suivants : la pince est facile à utiliser, et l'intervention ne produit pas de pression négative et n'a pas besoin de retirer des cathéters médicaux, et ne produit donc pas d'accidents d'utilisation résultant du retrait de cathéters médicaux.
PCT/CN2013/086473 2013-11-02 2013-11-02 Pince d'arrêt d'écoulement de cathéter médical apte à une commande à une seule main WO2015062101A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/086473 WO2015062101A1 (fr) 2013-11-02 2013-11-02 Pince d'arrêt d'écoulement de cathéter médical apte à une commande à une seule main

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/086473 WO2015062101A1 (fr) 2013-11-02 2013-11-02 Pince d'arrêt d'écoulement de cathéter médical apte à une commande à une seule main

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WO2015062101A1 true WO2015062101A1 (fr) 2015-05-07

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PCT/CN2013/086473 WO2015062101A1 (fr) 2013-11-02 2013-11-02 Pince d'arrêt d'écoulement de cathéter médical apte à une commande à une seule main

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020172301A1 (fr) * 2019-02-20 2020-08-27 Becton, Dickinson And Company Pince à tube de prolongement assurant un déplacement positif
WO2022251071A1 (fr) * 2021-05-24 2022-12-01 Fresenius Medical Care Holdings, Inc. Colliers de serrage tubulaire symétriques

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5035399A (en) * 1990-05-25 1991-07-30 C.R. Bard, Inc. Protective tubing clamp apparatus
US5323514A (en) * 1992-05-20 1994-06-28 Yoshida Kogyo K. K. Cord stopper
US5361461A (en) * 1993-09-16 1994-11-08 National Molding Corp. Preloadable cord lock
CN102065931A (zh) * 2008-04-01 2011-05-18 泽维克斯公司 安全阻塞器及其使用方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5035399A (en) * 1990-05-25 1991-07-30 C.R. Bard, Inc. Protective tubing clamp apparatus
US5323514A (en) * 1992-05-20 1994-06-28 Yoshida Kogyo K. K. Cord stopper
US5361461A (en) * 1993-09-16 1994-11-08 National Molding Corp. Preloadable cord lock
CN102065931A (zh) * 2008-04-01 2011-05-18 泽维克斯公司 安全阻塞器及其使用方法

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020172301A1 (fr) * 2019-02-20 2020-08-27 Becton, Dickinson And Company Pince à tube de prolongement assurant un déplacement positif
CN113631216A (zh) * 2019-02-20 2021-11-09 贝克顿·迪金森公司 提供正向移位的延伸管夹具
US11351354B2 (en) 2019-02-20 2022-06-07 Becton, Dickinson And Company Extension tube clamp providing positive displacement
US11819656B2 (en) 2019-02-20 2023-11-21 Becton, Dickinson And Company Extension tube clamp providing positive displacement
CN113631216B (zh) * 2019-02-20 2024-03-01 贝克顿·迪金森公司 提供正向移位的延伸管夹具
WO2022251071A1 (fr) * 2021-05-24 2022-12-01 Fresenius Medical Care Holdings, Inc. Colliers de serrage tubulaire symétriques
US11975169B2 (en) 2021-05-24 2024-05-07 Fresenius Medical Care Holdings, Inc. Symmetric tubing clamps

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