WO2017156649A1 - Pince jetable pour tissu mou du tractus digestif - Google Patents

Pince jetable pour tissu mou du tractus digestif Download PDF

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Publication number
WO2017156649A1
WO2017156649A1 PCT/CN2016/000232 CN2016000232W WO2017156649A1 WO 2017156649 A1 WO2017156649 A1 WO 2017156649A1 CN 2016000232 W CN2016000232 W CN 2016000232W WO 2017156649 A1 WO2017156649 A1 WO 2017156649A1
Authority
WO
WIPO (PCT)
Prior art keywords
tightening cylinder
soft tissue
metal clip
clip
metal
Prior art date
Application number
PCT/CN2016/000232
Other languages
English (en)
Chinese (zh)
Inventor
李洪谊
刘富忠
李娇
麻树人
吴玲
张永成
李贵阳
柳全乐
孙玉盛
郑金锋
王闯
王耀涓
Original Assignee
沈阳尚贤微创医疗器械股份有限公司
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 沈阳尚贤微创医疗器械股份有限公司 filed Critical 沈阳尚贤微创医疗器械股份有限公司
Publication of WO2017156649A1 publication Critical patent/WO2017156649A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/122—Clamps or clips, e.g. for the umbilical cord
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00743—Type of operation; Specification of treatment sites
    • A61B2017/00818—Treatment of the gastro-intestinal system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B2017/12004—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for haemostasis, for prevention of bleeding

Definitions

  • the invention relates to the field of medical instruments, in particular to a disposable soft tissue clip for the digestive tract.
  • the treatment methods and techniques for the internal pathological tissues of the body are also constantly developing.
  • the lesions in the digestive tract are usually treated with endoscopic instruments, and some operations may cause bleeding in the treatment area.
  • endoscopic hemostasis methods include electrocoagulation, laser coagulation, drug hemostasis, and hemostatic clips.
  • the hemostatic clip has a fast hemostasis speed, and the soft tissue heals quickly after operation.
  • the shed body can be discharged from the body, with less trauma and less complications.
  • the existing hemostatic clip product needs to be filled with glue inside the sleeve, and the glue solidifies to form an elastic body, and the function is to prevent the closed metal claw from coming out from the sleeve and keeping the metal claw closed. Therefore, the assembly of the existing hemostatic clip product is complicated, and the production of the product takes a long time.
  • the present invention provides a disposable soft tissue clip for the digestive tract, which adopts a ring protrusion in the tightening cylinder, and utilizes the elastic deformation ability of the protrusion and/or the tightening cylinder, when the hook drives the metal
  • the clip is closed rearwardly into the tightening cylinder, and the protrusion encloses the metal clip to form an interference fit to prevent it from coming out and open; so that the soft tissue clip of the digestive tract can be clamped and prevented by a simple structure, thereby Simplify the manufacturing process of the soft tissue clip of the digestive tract and reduce its manufacturing cost.
  • a disposable gastrointestinal soft tissue clip having a handle, a transport mechanism, a hook and a release mechanism, the release mechanism comprising a metal clip and a tightening cylinder, the metal clip having a curved root and a pair extending forward from the curved root
  • the jaws, the extension arms of the jaws are arranged in a cross;
  • the inner wall of the tightening cylinder is provided with a ring protrusion
  • the curved root of the metal clip is located at the front end of the tightening cylinder
  • the tail end of the hook extends from the rear end of the tightening cylinder into the curved root portion of the tightening cylinder and the metal clip
  • the hook drives the metal clip to move inside the tightening cylinder to close a pair of jaws of the metal clip
  • the curved root on the metal clip enters the tightening cylinder and passes over the protrusion
  • the protrusion clamps the metal clip to prevent metal
  • the clip is pulled out to the front end of the tightening cylinder; the leading end of the hook is connected to the conveying mechanism.
  • the disposable gastrointestinal soft tissue clip is provided with a buckle at the front end of the tightening cylinder, and the extending arm of the clamping jaw opens a finite slot, and when the metal clip moves to the tightening cylinder to close, tighten
  • the buckle at the front end of the cylinder abuts against the limiting groove to prevent the metal clip from coming off the front end of the tightening cylinder.
  • the disposable gastrointestinal soft tissue clip, the inner diameter of the tightening cylinder The maximum width H of the curved root portion is matched when the metal clip is closed, and the height of the projection relative to the inner wall of the tightening cylinder is 0.1 mm to 0.4 mm.
  • the disposable digestive tract soft tissue clip is divided into two parts, namely a sleeve located at the rear end of the tightening cylinder and a metal cylinder located at the front end of the tightening cylinder, wherein the sleeve is made of polymer plastic material.
  • the protrusion is disposed on an inner wall of the middle portion of the sleeve.
  • the disposable gastrointestinal soft tissue clip has a height of 0.1 mm to 0.4 mm with respect to the inner wall of the sleeve.
  • the inner diameter of the sleeve at the front end of the sleeve is The inner diameter of the sleeve at the rear end of the sleeve is
  • the maximum width of the curved root is H
  • the inner diameter of the cylinder Matching the maximum width H of the curved root when the metal clip is closed, Less than the maximum width H of the curved root when the metal clip is closed,
  • the side of the buckle located on the inside of the tightening cylinder has a plane I that cooperates with the wall of the limiting slot, and the opening of the buckle has a plane matching the bottom of the limiting slot.
  • the disposable gastrointestinal soft tissue clip has a tapered surface on the side of the outer portion of the tightening cylinder that cooperates with the limiting groove.
  • the disposable gastrointestinal soft tissue clip comprises a sliding rod, a sliding ring disposed on the sliding rod, a guide wire, a spring tube and a protection tube, the spring tube is sleeved outside the guide wire, and the protection tube is sleeved On the spring tube, one end of the guide wire is connected to the slip ring, and the other end of the guide wire is connected to the head end of the hook, and the handle is disposed at the top end of the slide bar.
  • the invention creates a single-use digestive soft tissue clip with a simple structure, and the combination and cooperation of the structure and the material properties, thereby eliminating the operation of filling the glue in the prior art, and making the assembly process of the disposable digestive soft tissue clip easier.
  • the material of the sleeve is made of polymer plastic, and the formed sleeve has good elastic deformation ability.
  • the metal clip When the metal clip is closed and returned to the sleeve copper, the metal clip can be tightly wrapped to prevent it from coming forward. .
  • a ring of protrusions is arranged inside the sleeve, and when the metal clip is closed, the sleeve is retracted into the sleeve, and the protrusion can increase the tightening force and form an interference fit to further prevent it from coming forward.
  • the size of the curved root is larger than the diameter of the tail of the sleeve, and after the metal clip is closed, the two will also form an interference fit to further prevent the metal clip from coming out and opening.
  • the front end of the metal tube is provided with a buckle, and the metal clip is opened with a finite slot.
  • the buckle at the front end of the metal tube abuts against the metal clip limit groove, further preventing the metal clip from coming forward.
  • the buckle has a conical surface that can cooperate with the limiting groove to guide and limit.
  • Figure 1 is a schematic view showing the structure of a disposable soft tissue clip of the digestive tract.
  • FIG. 2 is a partial cross-sectional structural view of a disposable gastrointestinal soft tissue clip.
  • Figure 3 is a schematic view showing the structure of the metal clip in the release mechanism.
  • Figure 4 is a schematic view showing the structure of the metal clip closed in the release mechanism.
  • FIG. 5 is a schematic structural view of the metal clip shown in FIG. 4.
  • FIG. 5 is a schematic structural view of the metal clip shown in FIG. 4.
  • Figure 6 is a schematic view showing the structure of the tightening cylinder shown in Figure 4.
  • the disposable soft tissue clip of the digestive tract has a handle, a transport mechanism, a hook 4 and a release mechanism.
  • the conveying mechanism comprises a sliding rod 8, a sliding ring 9 disposed on the sliding rod 8, a guide wire 5, a spring tube 6 and a protection tube 7, the spring tube 6 is sleeved outside the guide wire 5, and the protection tube 7 is sleeved on the spring tube 6
  • Upper end of the guide wire 5 is connected to the slip ring 9, and the other end of the guide wire 5 is connected to the head end of the hook 4, and the guide wire 5 and the hook 4 are connected by welding.
  • the handle is disposed at the top end of the slider 8.
  • the release mechanism shown in Figures 3-6 includes a metal clip 1 having a curved root portion 11 and a pair of jaws 12 extending forwardly from the curved root portion 11, the extension arms of the jaws 12 intersecting.
  • the inner wall of the tightening cylinder is provided with a ring of protrusions 31.
  • the curved root portion 11 of the metal clip 1 is located at the front end of the tightening cylinder, and the tail end of the hook 4 extends from the rear end of the tightening cylinder into the tightening cylinder and the metal clip.
  • the curved root portion 11 of the 1 is connected, and the hook 4 drives the metal clip 1 to move inside the tightening cylinder to close the pair of jaws 12 of the metal clip 1, and the curved root portion 11 on the metal clip 1 enters the tightening cylinder and passes over the protrusion 31, the protrusion 31 encloses the metal clip 1 to prevent the metal clip 31 from coming off the front end of the tightening cylinder.
  • the hook 4 and the metal clip 1 are hooked.
  • the maximum width H of the curved root portion 11 is matched when the metal clip 1 is closed, and the height of the projection 31 with respect to the inner wall of the tightening cylinder is 0.1 mm to 0.4 mm.
  • the tightening cylinder is divided into two parts, namely a sleeve 3 at the rear end of the tightening cylinder and a metal cylinder 2 at the front end of the tightening cylinder.
  • the sleeve 3 is made of a polymer plastic material and has a large elastic deformation capability, and the protrusion 31 It is disposed on the inner wall of the middle of the sleeve 3.
  • the height of the projection 31 with respect to the inner wall of the sleeve 3 is 0.1 mm to 0.4 mm.
  • the inner diameter of the sleeve at the front end of the sleeve is The inner diameter of the sleeve at the rear end of the sleeve is
  • the maximum width of the curved root is H
  • the inner diameter of the cylinder Matching the maximum width H of the curved root when the metal clip is closed, Less than the maximum width H of the curved root when the metal clip is closed, More preferably Before the metal clip 1 is closed, the maximum width of the curved root portion 11 is H 1
  • the inner diameter of the tube of the projection 31 is There is a certain size relationship
  • the hook 4 moves backward, the metal clip 1 is brought into the tightening cylinder to close, and the maximum width of the curved root portion 11 of the metal clip 1 is changed from H 1 to H, due to H 1 and The difference is not large, the metal clip 1 can easily enter the sleeve 2 and is satisfied at this time.
  • the sleeve 2 is made of a polymer material having a good elastic deformation ability, when the metal clip 1 instantaneously passes through the protrusion 31 in the sleeve 2, the sleeve protrusion is outwardly deformed, and then the metal clip 1 is quickly wrapped. , forming an interference fit, at this time, the maximum width of the curved root portion 11 of the metal clip 1 Continue to pull the metal clip 1, the metal clip 1 finally enters the tail of the sleeve 2, and the tail of the metal clip 1 has a tendency to restore the initial height due to the initial height. The curved root portion 11 of the metal clip 1 is wrapped by the end of the sleeve 2 to form an interference fit, thereby further preventing the metal clip 1 from being disengaged forward.
  • the front end of the tightening cylinder that is, the front end of the metal cylinder 2 is provided with a buckle 21, and the extending arm of the clamping jaw 12 is opened with a limit groove 13.
  • the buckle of the front end of the metal cylinder 2 21 is abutted against the limiting groove 13 to prevent the metal clip 1 from coming off the front end of the tightening cylinder.
  • the buckle 21 is located on the inner side of the metal cylinder 2 and has a plane I22 that cooperates with the slot wall of the limiting slot 13.
  • the opening of the latch 21 has a plane II 23 that cooperates with the slot bottom of the limiting slot 13.
  • the buckle 21 is located on the outer side of the metal cylinder 2 and has a tapered surface 24 that cooperates with the limiting groove 13.

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Reproductive Health (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne une pince jetable pour tissu mou du tractus digestif, appartenant au domaine des instruments médicaux. La pince jetable pour tissu mou du tractus digestif est équipée d'une poignée, d'un mécanisme de distribution, d'un crochet (4) et d'un mécanisme de libération. Le mécanisme de libération comprend une pince métallique (1) et un cylindre de serrage, la pince métallique (1) comportant une base en forme d'arc (11) et une paire de mâchoires de serrage (12) s'étendant vers l'avant depuis la base en forme d'arc (11), et des bras d'extension des mâchoires de serrage (12) étant en agencement transversal ; et une paroi interne du cylindre de serrage comportant un cercle de saillies (31), la base en forme d'arc (11) de la pince métallique (1) est située sur l'extrémité avant du cylindre de serrage, et l'extrémité pointe du crochet (4) s'étend dans le cylindre de serrage depuis l'extrémité arrière du cylindre de serrage et est reliée à la base en forme d'arc (11) de la pince métallique (1). Le crochet (4) amène la pince métallique (1) à se déplacer dans le cylindre de serrage pour permettre aux mâchoires de serrage (12) de la pince métallique (1) de se fermer, la base en forme d'arc (11) de la pince métallique (1) pénètre dans le cylindre de serrage et traverse les saillies (31), et les saillies (31) s'enroulent étroitement autour de la pince métallique (1) pour empêcher la pince métallique (1) de se désolidariser vis-à-vis de l'extrémité avant du cylindre de serrage et de s'ouvrir. L'extrémité tête du crochet (4) est reliée au mécanisme de transport, supprimant ainsi l'opération de remplissage de colle et permettant à la technologie d'assemblage de la pince jetable pour tissu mou du tractus digestif d'être plus simple.
PCT/CN2016/000232 2016-03-15 2016-04-29 Pince jetable pour tissu mou du tractus digestif WO2017156649A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610146442.6 2016-03-15
CN201610146442.6A CN105615938A (zh) 2016-03-15 2016-03-15 一次性使用消化道软组织夹

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WO2017156649A1 true WO2017156649A1 (fr) 2017-09-21

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WO (1) WO2017156649A1 (fr)

Cited By (4)

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CN108451628A (zh) * 2018-04-08 2018-08-28 西南医科大学附属中医医院 骨科手术钢丝拧合器
CN108969043A (zh) * 2018-08-17 2018-12-11 刘建强 可释放消化道切口闭合装置
CN110432947A (zh) * 2019-08-09 2019-11-12 黄皆澔 连发施夹钳
CN111839649A (zh) * 2020-08-20 2020-10-30 苏州朗特斯医疗科技有限公司 一种组织夹中防止组织滑移的结构

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CN109350171B (zh) * 2018-11-29 2024-04-12 张强 止血及缝合用经消化内窥镜孔道的连体双面夹及操作方法
CN109805977B (zh) * 2019-03-21 2024-03-05 南微医学科技股份有限公司 一种医用止血夹
CN113289268B (zh) * 2021-05-25 2022-11-04 河南科技大学第一附属医院 一种可重复利用放疗金标定位器、定位控制器及定位装置

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CN104248461A (zh) * 2014-09-25 2014-12-31 安瑞医疗器械(杭州)有限公司 夹钳、夹钳推送装置和止血夹
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108451628A (zh) * 2018-04-08 2018-08-28 西南医科大学附属中医医院 骨科手术钢丝拧合器
CN108969043A (zh) * 2018-08-17 2018-12-11 刘建强 可释放消化道切口闭合装置
CN108969043B (zh) * 2018-08-17 2024-05-28 刘建强 可释放消化道切口闭合装置
CN110432947A (zh) * 2019-08-09 2019-11-12 黄皆澔 连发施夹钳
CN110432947B (zh) * 2019-08-09 2024-04-19 伟格尔(广州)医疗设备有限公司 连发施夹钳
CN111839649A (zh) * 2020-08-20 2020-10-30 苏州朗特斯医疗科技有限公司 一种组织夹中防止组织滑移的结构

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