WO2023015653A1 - Dispositif d'étanchéité de gaine d'introduction - Google Patents

Dispositif d'étanchéité de gaine d'introduction Download PDF

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Publication number
WO2023015653A1
WO2023015653A1 PCT/CN2021/117587 CN2021117587W WO2023015653A1 WO 2023015653 A1 WO2023015653 A1 WO 2023015653A1 CN 2021117587 W CN2021117587 W CN 2021117587W WO 2023015653 A1 WO2023015653 A1 WO 2023015653A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing
valve body
sealing valve
connector housing
outer end
Prior art date
Application number
PCT/CN2021/117587
Other languages
English (en)
Chinese (zh)
Inventor
夏顺
黄定国
Original Assignee
上海腾复医疗科技有限公司
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
Priority claimed from CN202110915943.7A external-priority patent/CN113577513A/zh
Priority claimed from CN202121860627.6U external-priority patent/CN215741271U/zh
Application filed by 上海腾复医疗科技有限公司 filed Critical 上海腾复医疗科技有限公司
Publication of WO2023015653A1 publication Critical patent/WO2023015653A1/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
    • 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
    • F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
    • F16L5/02—Sealing
    • F16L5/10—Sealing by using sealing rings or sleeves only

Definitions

  • the present application relates to the technical field of medical devices, in particular to a catheter sealing device.
  • Minimally invasive endovascular interventional surgery has gradually become the mainstream trend in the treatment of vascular diseases.
  • all interventional procedures require the introduction of surgical instruments through an introduction sheath.
  • Clinical application requires that the introduction sheath must have both tightness and low introduction resistance. Sealing requires that the introduction sheath can be well sealed to prevent blood from flowing out when used alone or in combination with other instruments.
  • Low introduction resistance requires that the introduction sheath has very little resistance when providing an introduction channel for other instruments, so as to avoid inability to introduce or damage the instrument during introduction.
  • the purpose of some embodiments of the present application is to provide a catheter sealing device, which solves the problem that the existing catheter sealing device cannot achieve both sealing performance and low introduction resistance.
  • An embodiment of the present application provides a catheter sealing device, including: a catheter body; a connector housing, in a tubular structure; a sealing assembly, the sealing assembly includes: an elastically twistable tubular sealing valve body, the catheter body and the inner end of the sealing valve body are all fixed in the connector housing, the conduit body communicates with the sealing valve body; and the adjustment knob is arranged on the connector housing and connected to the The outer end of the sealing valve body is connected to drive the outer end of the sealing valve body to rotate to adjust the sealing force of the sealing valve body; the adjusting knob has an instrument introduction channel communicated with the sealing valve body.
  • the adjusting knob is threadedly connected with the outer end of the connector housing, and the sealing force of the sealing valve body can be adjusted by the number of rotations and the screw pitch.
  • the inner end of the adjustment knob is provided with an internal thread
  • the outer end of the connector housing is provided with an external thread
  • the adjustment knob and the connector housing are threaded through the internal thread and the external thread. connect.
  • the sealing assembly also includes internal fixing parts arranged at both ends of the sealing valve body, and the sealing valve body is fixed on the inner wall of the connector housing through the internal fixing parts at the internal ends of the sealing valve body.
  • the valve body is fixedly connected with the adjusting knob through the inner fixing part at the outer end.
  • sealing valve body is dumbbell-shaped or straight-pipe-shaped.
  • the sealing valve body includes an elastic valve body body and a superslip film layer arranged on the inner wall of the elastic valve body body.
  • the super-slip film layer is made of polytetrafluoroethylene or expanded polytetrafluoroethylene.
  • sealing valve body is a straight tube balloon filled with liquid or gas.
  • the elasticity of the two ends of the straight tubular balloon is greater than that of the middle part of the balloon.
  • the catheter sealing device further includes a transfusion tube connected to the side wall of the connector body, and the transfusion tube communicates with the catheter tube body.
  • the sealing assembly is used as a sealing structure extending from the adjustment knob at the outer end to the introduction channel at the distal end of the catheter body.
  • the sealing valve body is an elastic and twistable tubular structure, and the inner end of the sealing valve body is sealed. It is fixed in the connector housing and communicated with the conduit body.
  • the outer end of the sealing valve body is connected with the adjustment knob.
  • the outer end of the sealing valve body can be driven to rotate by operating the adjustment knob, thereby driving the sealing valve body to twist.
  • the degree of torsion of the valve body adjusts the size of its sealing force.
  • the catheter sealing device of the embodiment of the present application can simultaneously take into account the sealing performance and low-resistance introduction performance, greatly improving the convenience of operation.
  • FIG. 1 is a schematic structural view of a catheter sealing device provided in an embodiment of the present application
  • Fig. 2 is a schematic cross-sectional structural view of the conduction state of the catheter sealing device provided by the embodiment of the present application;
  • FIG. 3 is a schematic cross-sectional structural view of the sealing state of the catheter sealing device provided by the embodiment of the present application.
  • Fig. 4 is a structural schematic diagram of a sealing component of the catheter sealing device provided in the embodiment of the present application.
  • Fig. 5 is a structural schematic diagram of another sealing assembly of the catheter sealing device provided in the embodiment of the present application.
  • Fig. 6 is a structural schematic diagram of another sealing component of the catheter sealing device provided in the embodiment of the present application.
  • FIG. 7 is a structural schematic diagram of the sealing state of the sealing assembly of the conduit sealing device shown in FIG. 6 .
  • proximal end and the distal end mentioned in this application have the same meaning in terms of orientation, that is, in the state of use, the distal end is the end away from the operator, the proximal end is the end close to the operator, and the operator is at the proximal end. Control conduit seal.
  • orientation or positional relationship indicated by the terms “inner”, “outer”, “middle”, etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating Or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the application.
  • a catheter sealing device provided by Embodiment 1 of the present application can be used for endovascular interventional surgery.
  • the catheter sealing device of the embodiment of the present application mainly includes: a catheter tube body 1 , a connector housing 2 , a sealing assembly 3 , an adjustment knob 4 and an infusion tube 5 .
  • the connector housing 2 has a tubular structure and is used for the sealed connection of the catheter body 1 , the infusion tube 5 and the sealing assembly 3 .
  • the infusion tube 5 is connected to the side wall of the connector housing 2 .
  • the transfusion tube 5 communicates with the catheter body 1, and thrombus suction and the like can be carried out by the transfusion tube 5.
  • the catheter sealing device may not include an infusion tube.
  • the connector housing 2 is mainly used for the sealed connection between the catheter body 1 and the sealing assembly 3 .
  • the sealing assembly 3 is disposed in the connector housing 2 .
  • the sealing assembly 3 includes: an elastically twistable tubular sealing valve body 30 , the inner ends of the conduit body 1 and the sealing valve body 30 are fixed in the connector housing 2 , and the conduit body 1 communicates with the sealing valve body 30 .
  • the adjustment knob 4 is arranged on the connector housing 2 and connected with the outer end of the sealing valve body 30 , for driving the outer end of the sealing valve body 30 to rotate to adjust the sealing force of the sealing valve body 30 .
  • the adjustment knob 4 has an instrument introduction channel communicated with the sealing valve body 30 .
  • An axial instrument introduction channel is formed in the catheter sealing device from the outer end of the adjustment knob 4 to the distal end of the catheter tube body 1 .
  • the sealing assembly 3 may further include: internal fixing parts arranged at both ends of the sealing valve body 30 .
  • the sealing valve body 30 is fixed on the inner wall of the connector housing 2 through the inner fixing part 31 at the inner end, and is fixedly connected with the adjusting knob 4 through the inner fixing part 32 at the outer end.
  • Both the inner fixing part 31 sealing the inner end of the valve body 30 and the inner fixing part 32 sealing the outer end of the valve body 30 are annular support parts.
  • the sealing valve body 30 is supported and fixed on the inner wall of the connector housing 2 by an inner fixing member 31 at its inner end.
  • the outer end of the adjusting knob 4 forms a fixing ring 40 extending axially inward, and the sealing valve body 30 is supported and fixed in the fixing ring 40 of the adjusting knob 4 through the inner fixing member 32 at the outer end.
  • the two ends of the sealing valve body 30 may not be provided with internal fixing parts, but the inner ends of the sealing valve body 30 are directly sleeved on the fixing ring formed in the connector housing 2, and the sealing valve body 30 The outer end is sheathed on the annular fixing structure of the adjusting knob 4 .
  • the adjusting knob 4 can be a cylindrical structure, and the adjusting knob 4 is threadedly connected with the outer end of the connector housing 2, and the sealing force of the sealing valve body 30 can be adjusted by the number of rotations and the screw pitch.
  • the inner end of the adjustment knob 4 is provided with an internal thread
  • the outer end of the connector housing 2 is provided with an external thread
  • the adjustment knob 4 and the connector housing 2 are threaded through the internal thread and the external thread.
  • the inner end of the adjustment knob 4 is provided with an external thread
  • the outer end of the connector housing 2 is provided with an internal thread
  • the adjustment knob 4 and the connector housing 2 are screwed together through the external thread and the internal thread.
  • the threaded connection method is not only convenient for the adjustment knob 4 to drive the sealing assembly 3 to rotate, but also can play a role of rotation locking, which is convenient for locking the sealing assembly 3 at any position. It can be understood that the adjustment knob 4 can also adopt other structures that are conveniently disposed on the connector housing 2 and can drive the sealing assembly 3 to rotate and lock, and no specific limitation is set here.
  • the sealing assembly 3 is the main part for opening and sealing the introduction passage, and its sealing valve body 30 is twisted and deformed under the driving of the adjustment knob 4, thereby reducing the passage in the sealing valve body 30 until it is completely closed.
  • the sealing valve body 30 is twisted more than two times, good sealing performance can be provided.
  • the sealing valve body 30 is not twisted, it can be in an open state as shown in FIG. Injury introduced instrument.
  • the narrowing degree of the introduction channel and the closing force after closing can be quantitatively controlled by adjusting the pitch and the rotation angle of the knob 4, so that the sealing performance is precisely and controllable.
  • the sealing valve body 30 may include an elastic valve body body 300 and a super-slip film layer 301 disposed on the inner wall of the elastic valve body body 300 .
  • the elastic valve body 300 is made of elastic material, which needs to have certain support and twistability.
  • the structure of the super-sliding film layer 301 can be made of polytetrafluoroethylene (PTFE) or expanded polytetrafluoroethylene (e-PTFE).
  • the sealing valve body 30 may be in the shape of a dumbbell.
  • the elasticity of the dumbbell-shaped sealing valve body 30 gradually increases from the middle to both ends. Therefore, when the sealing valve body 30 is subjected to torsion force, the central part is more likely to be torsionally deformed, making the sealing performance better and easier to control.
  • the sealing valve body 30 may also be in the shape of a straight pipe.
  • the straight pipe-shaped sealing valve body 30 can provide a larger introduction diameter in a natural state.
  • the sealing valve body 30 can also be a straight tubular balloon filled with liquid or gas.
  • the straight tubular balloon has a sealed structure, and a certain amount of liquid or gas is sealed inside.
  • the balloon structure sealing the valve body 30 can be made of elastic body and has good compliance.
  • Figure 7 when the adjustment knob 4 is rotated, the liquid or gas in the straight tube-shaped balloon-shaped sealing valve body 30 is squeezed to the middle by both ends, and the balloon is inflated in the middle, and finally reaches a tightness. combined state.
  • the elasticity of the two ends of the straight tubular balloon is greater than the elasticity of the middle portion of the balloon.
  • the length of its two ends can be made into a solid valve body, and the thickness of the solid valve body can also be made smaller, so that when the sealing valve body 30 is subjected to torsional force, Liquid or gas is squeezed towards the middle part.
  • the catheter sealing device In the interventional operation, the catheter sealing device according to the embodiment of the present application is inserted into the blood vessel according to the standard operation, and the adjustment knob is rotated to make the sealing valve body 30 to a tight state, which can play a role in hemostasis. Take the device to be introduced, loosen the adjustment knob 4 according to the size of the device, open the introduction channel to the required size, and quickly insert the device to be introduced, then observe the bleeding situation and rotate the adjustment knob until the bleeding is just stopped.
  • the catheter sealing device of the embodiment of the present application has adjustable inner diameter and adjustable sealing force.
  • the sealing force can be adjusted according to the demand, and can reduce the introduction and return as much as possible under the premise of achieving the hemostasis effect. Withdraw resistance.
  • the operation time can be saved, and the device can be prevented from being damaged by large resistance. Therefore, the catheter sealing device of the embodiment of the present application can simultaneously take into account the sealing performance and low-resistance introduction performance, greatly improving the convenience of operation.

Landscapes

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

Abstract

L'invention concerne un dispositif d'étanchéité de gaine d'introduction. Le dispositif d'étanchéité de gaine d'introduction comprend un corps de gaine d'introduction (1), un logement de connecteur (2), un ensemble d'étanchéité (3), et un bouton de réglage (4) ; l'ensemble d'étanchéité (3) comprend une valve d'étanchéité (30) tubulaire qui peut être torsadée élastiquement ; les extrémités internes du corps de gaine d'introduction (1) et la valve d'étanchéité (30) sont disposés de manière fixe dans le logement de connecteur (2) ; le corps de gaine d'introduction (1) est en communication avec la valve d'étanchéité (30) ; le bouton de réglage (4) est disposé sur le logement de connecteur (2), relié à l'extrémité extérieure de la valve d'étanchéité (30), et utilisé pour entraîner l'extrémité extérieure de la valve d'étanchéité (30) pour ajuster la force d'étanchéité de la valve d'étanchéité (30) ; le bouton de réglage (4) a un canal d'introduction d'instrument en communication avec la valve d'étanchéité (30). Le dispositif d'étanchéité de gaine d'introduction permet à une gaine d'introduction d'avoir à la fois une propriété d'étanchéité et une faible résistance à l'introduction, ce qui permet d'améliorer la commodité et l'efficacité des opérations chirurgicales.
PCT/CN2021/117587 2021-08-10 2021-09-10 Dispositif d'étanchéité de gaine d'introduction WO2023015653A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202121860627.6 2021-08-10
CN202110915943.7A CN113577513A (zh) 2021-08-10 2021-08-10 一种导管密封装置
CN202121860627.6U CN215741271U (zh) 2021-08-10 2021-08-10 一种导管密封装置
CN202110915943.7 2021-08-10

Publications (1)

Publication Number Publication Date
WO2023015653A1 true WO2023015653A1 (fr) 2023-02-16

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Application Number Title Priority Date Filing Date
PCT/CN2021/117587 WO2023015653A1 (fr) 2021-08-10 2021-09-10 Dispositif d'étanchéité de gaine d'introduction

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WO (1) WO2023015653A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116898389A (zh) * 2023-09-12 2023-10-20 湖南英术生命科技有限公司 一种关节镜组件
CN117282013A (zh) * 2023-10-10 2023-12-26 晨兴(南通)医疗器械有限公司 医疗输送器用导管密封组件及肺动脉取栓器用输送系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3040655A (en) * 1960-03-08 1962-06-26 Edgar W Byars Juice extractor
US3294427A (en) * 1965-08-23 1966-12-27 Gerald R Hunt Cylindrical holder having means to support a held object coaxially therein
WO1986002136A1 (fr) * 1984-09-25 1986-04-10 Armo Gesellschaft Für Bauelemente, Bau- Und Wohnbe Dispositif pour etancheiser les ouvertures dans les murs ou les traversees pour cables et tuyaux
CN211835810U (zh) * 2019-12-31 2020-11-03 杭州启明医疗器械股份有限公司 内平衡式的止血阀以及导管鞘
CN113117227A (zh) * 2019-12-31 2021-07-16 杭州启明医疗器械股份有限公司 自适应止血阀、导管鞘以及介入器械的密封方法
CN113694367A (zh) * 2021-07-09 2021-11-26 江苏朴芃医疗科技有限公司 一种可调节式止血阀装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3040655A (en) * 1960-03-08 1962-06-26 Edgar W Byars Juice extractor
US3294427A (en) * 1965-08-23 1966-12-27 Gerald R Hunt Cylindrical holder having means to support a held object coaxially therein
WO1986002136A1 (fr) * 1984-09-25 1986-04-10 Armo Gesellschaft Für Bauelemente, Bau- Und Wohnbe Dispositif pour etancheiser les ouvertures dans les murs ou les traversees pour cables et tuyaux
CN211835810U (zh) * 2019-12-31 2020-11-03 杭州启明医疗器械股份有限公司 内平衡式的止血阀以及导管鞘
CN113117227A (zh) * 2019-12-31 2021-07-16 杭州启明医疗器械股份有限公司 自适应止血阀、导管鞘以及介入器械的密封方法
CN113694367A (zh) * 2021-07-09 2021-11-26 江苏朴芃医疗科技有限公司 一种可调节式止血阀装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116898389A (zh) * 2023-09-12 2023-10-20 湖南英术生命科技有限公司 一种关节镜组件
CN116898389B (zh) * 2023-09-12 2023-11-28 湖南英术生命科技有限公司 一种关节镜组件
CN117282013A (zh) * 2023-10-10 2023-12-26 晨兴(南通)医疗器械有限公司 医疗输送器用导管密封组件及肺动脉取栓器用输送系统
CN117282013B (zh) * 2023-10-10 2024-05-24 晨兴(南通)医疗器械有限公司 医疗输送器用导管密封组件及肺动脉取栓器用输送系统

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