WO2020052345A1 - Pince à tissu pour tube digestif - Google Patents

Pince à tissu pour tube digestif Download PDF

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Publication number
WO2020052345A1
WO2020052345A1 PCT/CN2019/096016 CN2019096016W WO2020052345A1 WO 2020052345 A1 WO2020052345 A1 WO 2020052345A1 CN 2019096016 W CN2019096016 W CN 2019096016W WO 2020052345 A1 WO2020052345 A1 WO 2020052345A1
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WO
WIPO (PCT)
Prior art keywords
arm
hole
forceps
long
long arm
Prior art date
Application number
PCT/CN2019/096016
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English (en)
Chinese (zh)
Inventor
朱宏
金鸿雁
仇卫勤
李常青
冷德嵘
刘春俊
Original Assignee
南微医学科技股份有限公司
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 南微医学科技股份有限公司 filed Critical 南微医学科技股份有限公司
Publication of WO2020052345A1 publication Critical patent/WO2020052345A1/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
    • 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
    • A61B17/128—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 applying or removing clamps or clips
    • A61B17/1285—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 applying or removing clamps or clips for minimally invasive surgery

Definitions

  • the invention relates to the field of medical equipment, in particular to a tissue forceps for digestive tract.
  • the ligation devices on the market such as a pouch ring, require multiple hemostatic clips to assist the nylon ligation device to clamp the edge of the wound, so that the wound can be tightened.
  • the hemostatic clip is turned into the wound because of the large wound and many hemostatic clips. Increasing the ratio not only wastes a certain amount of medical resources, but also increases the pain and financial burden on patients.
  • the technical problem to be solved by the present invention is to provide a tissue forceps for the digestive tract in view of the shortcomings of the prior art.
  • the present invention provides a tissue forceps for digestive tract, which includes a handle and a forceps body.
  • the forceps body includes an openable and retractable forceps arm and a control arm for controlling the opening and closing angle of the forceps arm.
  • a cable is provided, and the handle is controlled by the cable and the control arm to open and close the clamp arm.
  • the clamp arm is a group of long arms
  • the control arm is a group of short arms.
  • One end of the short arm is movably connected to the clamp base, and the other end of the short arm is connected to the middle of the long arm.
  • One end is movably connected to one end of the long arm, and the other end of the push-pull rod is connected to the cable.
  • the short arm includes a first short arm and a second short arm.
  • the first short arm is provided with a set of first through holes
  • the second short arm is provided with a set of second through holes.
  • the first clamp base through hole and the second clamp base through hole are provided.
  • the clamp base includes a first pin, and the first pin passes through the first clamp base through hole, the first through hole, the second through hole and the second clamp base.
  • the hole movably connects the first jib and the second jib to the clamp base;
  • the long arm includes a first long arm and a second long arm.
  • the first long arm is provided with a set of third through holes
  • the second long arm is provided with a set of fourth through holes
  • the push-pull rod is provided with a push-pull rod through-hole.
  • the tie rod is provided with a second pin, and the second pin passes through the third through hole, the push through rod through hole and the fourth through hole to movably connect a group of long arms to the push and pull rod.
  • a cable hole is provided in the middle of the first pin, and a cable connected to the end of the push rod is connected to the handle through the cable hole in the middle of the first pin.
  • the push-pull rod includes a pliers body connection portion and a cable connection portion.
  • the pliers body connection portion is a ring structure.
  • the push-pull rod through hole is provided in the middle of the ring structure.
  • the cable connection portion is connected to the cable. .
  • the outer ring of the cable is provided with a flexible outer tube
  • the outer ring of the flexible outer tube is provided with a positioning outer tube
  • the handle is disposed at the rear end of the positioning outer tube.
  • a barb is provided on the inner side of the long arm to increase the clamping firmness.
  • the outer surface of the long arm is provided with a set of equally spaced scale division lines, which can measure the size of the lesion position under an endoscope.
  • a recess capable of accommodating the short arm is provided on the outer side of the long arm; the recess extends from the middle of the long arm to a position where the long arm and the push-pull rod are movably connected.
  • the outer side of the long arm from the middle to the distal end is a circular arc structure; the outer side of the short arm is also a circular arc structure; the arc radius of the outer arc structure of the long arm and the short arm is equal, They are all less than or equal to the inner wall radius of the outer tube.
  • the middle portion of the long arm is provided with a hinge hole perpendicular to the long arm; the distal end of the short arm is provided with a movable shaft perpendicular to the short arm; and the movable shaft is provided at the hinge Inside the hole so that the short arm is movably connected to the long arm.
  • the hinge hole is a T-shaped hole structure recessed toward the inside of the long arm; and the movable shaft is a T-shaped coupling shaft structure protruding toward the inside of the short arm.
  • the device can quickly and effectively close most large digestive tract wounds, turning them into smaller wounds that can be clamped by ordinary hemostatic clips, and fast and effective suture the wounds with existing hemostatic clips.
  • Figure 1 is a schematic diagram of an explosion
  • Figure 2 is an exploded view of a portion of the forceps
  • FIG. 3 is a schematic structural diagram of a push-pull rod
  • Figure 4a is a schematic view of opening the forceps body
  • Figure 4b is a sectional view of the connection of the long arm and the short arm;
  • FIG. 5 is a schematic diagram of closing the forceps body
  • Figure 6a is a first schematic view showing the state of a forceps body as a scale
  • 6b is a second schematic view showing the state of the forceps body as a scale
  • Fig. 6c is a third schematic view showing the state of the forceps body as a scale.
  • a tissue forceps for digestive tract includes a long arm 1, a short arm 2, a first pin 3, a second pin 4, a push-pull rod 5, a forceps holder 6, a flexible outer tube 7, and Cable 8, positioning outer tube 9 and handle 10, a group of short arms are movably connected to the clamp base, a group of long arms are movably connected to the push-pull rod, and the ends of the short arms are fixedly connected to the outer side wall of the middle of the long arm.
  • the push rod is connected to the cable.
  • a group of long arms 1 is a clamp arm
  • a group of short arms 2 is a control arm.
  • One end of the group of short arms 2 is movably connected to the clamp base, and the other end is connected to the middle of the long arm 1.
  • a set of long arms 1 is movably connected to one end of the push-pull rod 5, and the other end of the push-pull rod 5 is connected to a cable 8.
  • the short arm 2 includes a first short arm 2a and a second short arm 2b.
  • the first short arm 2a is provided with a set of first through holes 11a
  • the second short arm 2b is provided with a set of second through holes 11b
  • the clamp base 6 The end is provided with a first jaw base through hole 6a and a second jaw base through hole 6b, respectively.
  • the jaw base includes a first pin 3, and the first pin 3 passes through the first jaw base through hole 6a, the first through hole 11a, and the second
  • the through hole 11b and the second forceps through hole 6b movably connect the first short arm 2a and the second short arm 2b to the forceps 6;
  • the long arm 1 includes a first long arm 1a and a second long arm 1b.
  • the first long arm 1a is provided with a set of third through holes 12a
  • the second long arm 1b is provided with a set of fourth through holes 12b.
  • a push-pull rod through hole 5a is provided, and the push-pull rod is provided with a second pin 4, the second pin 4 passes through the third through-hole 12a, the push-pull rod through-hole 5a and the fourth through-hole 12b to movably connect a group of long arms 1 to Push the lever 5 on.
  • a cable hole 3a is provided in the middle of the first pin 3, and a cable 8 connected to the end of the push-pull rod 5 is connected to the handle 10 through the cable hole 3a in the middle of the first pin 3.
  • the push-pull rod 5 includes a pliers connection portion 13 and a cable connection portion 14.
  • the pliers connection portion 13 is a ring structure.
  • the push-pull rod through hole 5 a is provided in the middle of the ring structure, and the cable connection portion 14. Connect to the cable 8.
  • the cable 8 penetrates into the hole at the cable connection portion 14 of the push-pull rod 5 and is welded or riveted.
  • the outer ring of the cable 8 is provided with a flexible outer tube 7, the outer ring of the flexible outer tube 7 is provided with a positioning outer tube 9, and the handle 10 is disposed at the rear end of the positioning outer tube.
  • the flexible outer tube 7 serves as a protective outer tube for the entire instrument, and can be used as a support for the entire product when the product is opened and closed.
  • Barbs are provided on the inside of the long arms.
  • the unique lever mechanical structure is used.
  • the lever fulcrum of its long arm is changed in position relative to the center axis of the instrument.
  • the lever fulcrum of the long arm is farthest from the center axis of the instrument.
  • the traction force used to close the tissue forceps can be effectively transmitted to the distal end of the long arm holding the tissue.
  • the lever fulcrum of the long arm is getting smaller and smaller from the center axis of the instrument.
  • the traction torque It becomes smaller, and the expansion force of the tissue on the distal end of the long arm does not change or becomes larger, so that it needs to give more traction to obtain the required closing force.
  • the instrument adds a positioning outer tube for applying to the short arm.
  • the tightening force to the center of the instrument assists in the process of clamping; the opening distance of the instrument can theoretically reach the sum of the lengths of the two long arms, that is, the angle between the two long arms can be opened up to 180 degrees, in cooperation with the long arm A barb on the inside of the tip closes the wound with the total length of the two long arms.
  • the distal end of the short arm 2 is connected to the middle part of the long arm 1.
  • the lever fulcrum of the long arm 1 push the proximal handle assembly push rod 5 to The two long arms 1 are opened.
  • the lever fulcrum of the long arms 1 is farthest from the instrument's central axis, and a small force can be applied on the push-pull rod to start closing the jaws.
  • Figure 4a is a schematic view of opening the forceps body
  • 4b is a cross-sectional view of the connection between the long arm and the short arm; the hinge hole 17 on the long arm 1 and the short arm 2 is movably connected to the inner diameter and the outer diameter of the movable shaft 16.
  • Figures 6a, 6b, and 6c are schematic diagrams of the state of the forceps as a scale. From left to right, the top view, front view, and the style viewed under the endoscope when the forceps are opened to 180 °, respectively.
  • the forceps body is opened to 180 °, which is the longest state of the straight state of the forceps body. At this time, the maximum value in the plan view is 27mm.
  • the dividing line 15 divides the forceps body 9 into 3mm intervals. Under the endoscope, we can use this equal distance. To measure the size and location of lesions during endoscopy or surgery, so as to provide good reference data for the next operation.
  • the maximum value max of the pliers head is not limited to the above 27mm, and can be a value that can be achieved in the technical range.
  • the dividing line 15 can be any numerical value, and the distance is not limited to 9 equal parts.
  • Installation steps install the two short arms 2 holes into the pliers base 6 and connect the three pieces with the first pin 3; install the push rod 5 holes into the two long arms 1 and connect with the second pin 4 Insert the distal bending parts of the two short arms 2 into the middle holes of the two long arms 1, respectively.
  • they are connected by hinges; then, the push rod 5 is connected to the cable 8, and the cable is equipped with a flexible outer tube. 7.
  • the flexible outer tube 7 is externally mounted with a positioning outer tube 9.
  • the handle assembly is connected with the cable 8 and the flexible outer tube 7. At this time, a digestive tract tissue forceps are assembled.
  • the tissue forceps are added with a positioning outer tube 9 to assist the wound closing process and the fixed wound does not slip easily from the instrument after the wound is closed.
  • a recess is provided on the outer side of the long arm 1 to accommodate the short arm 2; the recess extends from the middle of the long arm 1 to the long arm 1 and the push-pull rod 5 Activity connection.
  • the depression on the outer side of the long arm 1 can accommodate the short arm 2 after the entire tissue clamp is tightened, so that the outer side of the short arm 2 does not protrude from the outer side of the long arm.
  • the smooth entry into the outer tube 9 makes the tissue forceps less resistant and more flexible during the proximal movement.
  • the long arm 1 and the short arm 2 can also be flexibly moved in the outer tube 9.
  • the long arm 1 can accommodate the short arm 2 after the tissue forceps are tightened, the long arm 1 can also be provided with other structures having the same effect as the depression, for example, the long arm 1 is from the middle
  • the movable connection between the long arm 1 and the push-pull rod 5 may be a two-arm structure, that is, a through-groove structure is provided at the proximal end of the long arm 1, and when the long arm 1 is tightened, the short arm 2 can enter the through groove.
  • the outer side of the long arm 1 from the middle to the distal end is a circular arc structure; the outer side of the short arm 2 is also a circular arc structure; the arc of the outer arc structure of the long arm 1 and the short arm 2
  • the radii are equal and both are less than or equal to the inner wall radius of the outer tube 9. Since the outer tube 9 is a tubular structure, the outer sides of the long arm 1 and the short arm 2 are simultaneously set into a circular arc structure, so that the movable parts of the tissue forceps can be cylindrical as a whole.
  • the outer tube 9 can give the outside of the short arm 2 a supporting force in the direction of the center of the circle, this supporting force is convenient to maintain the opening and closing of the long arm 1 Angle to facilitate control of the long arm 1.
  • the middle portion of the long arm 1 is provided with a hinge hole 17 perpendicular to the long arm 1; the distal end of the short arm 2 is provided with a movement perpendicular to the short arm 2 A shaft 16; the movable shaft 16 is disposed in the hinge hole 17, so that the short arm 2 is movably connected to the long arm 1.
  • the hinge hole 17 is a T-shaped hole structure recessed toward the inside of the long arm 1; the movable shaft 16 is a T-shaped coupling shaft structure protruding toward the inside of the short arm 2.
  • the movable shaft 16 can be rotated in the hinge hole 17 as far as possible so that the movable part does not exceed the arc of the outside of the long arm 1 Edge, thereby reducing the bulges that may be formed by each component, increasing the smoothness of the overall movement.
  • the present invention provides a tissue forceps for the digestive tract. There are many methods and ways to achieve this technical solution. The above are only preferred embodiments of the present invention. It should be noted that, for those skilled in the art, Without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present invention. Each component that is not specified in this embodiment can be implemented by using existing technologies.

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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)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Reproductive Health (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne une pince à tissu pour le tube digestif, comprenant des bras de pince pouvant être ouverts ou fermés et des bras de commande pour commander un angle d'ouverture ou de fermeture des bras de pince. Un câble de traction (7) est disposé dans une poignée (10) ; la poignée (10) commande l'ouverture ou la fermeture des bras de pince au moyen de la coopération du câble de traction (7) et des bras de commande ; les bras de pince sont un ensemble de bras longs (1) et les bras de commande sont un ensemble de bras courts (2) ; une extrémité du bras court (2) est reliée de façon mobile à une base de pince (6), et l'autre extrémité du bras court (2) est reliée à la partie médiane du bras long (1) ; une extrémité d'une tige de poussée-traction (5) est reliée de façon mobile à une extrémité du bras long (1), et l'autre extrémité de la tige de poussée-traction (5) est reliée au câble de traction (7). La pince à tissu peut fermer rapidement et efficacement une grande partie d'une grande surface de plaie du tube digestif, transformer la grande surface de plaie en une petite surface de plaie qui peut être serrée et fermée par une pince hémostatique ordinaire, et suture efficacement la surface de plaie avec la pince hémostatique existante.
PCT/CN2019/096016 2018-09-11 2019-07-15 Pince à tissu pour tube digestif WO2020052345A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811056412.1 2018-09-11
CN201811056412.1A CN109044474A (zh) 2018-09-11 2018-09-11 一种消化道用组织钳

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WO2020052345A1 true WO2020052345A1 (fr) 2020-03-19

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WO (1) WO2020052345A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109044474A (zh) * 2018-09-11 2018-12-21 南京微创医学科技股份有限公司 一种消化道用组织钳
CN109805986A (zh) * 2019-03-21 2019-05-28 南京微创医学科技股份有限公司 一种医用多爪钳
CN109998606A (zh) * 2019-04-11 2019-07-12 苏州聚生精密冲件有限公司 医疗器械连接件及具有该连接件结构的医用组织夹
CN109953800B (zh) * 2019-05-05 2023-10-10 南微医学科技股份有限公司 一种滑槽式多臂夹
CN111671496B (zh) * 2020-05-29 2023-06-30 北京大学深圳医院 颈椎椎体后方髓核取出装置
CN114983503B (zh) * 2022-05-26 2023-01-31 北京大学深圳医院 一种用于全层缝合的一次性活动舌双臂夹

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120071898A1 (en) * 2003-09-30 2012-03-22 Brian Keith Wells Through the Scope Tension Member Release Clip
CN103750901A (zh) * 2014-02-14 2014-04-30 徐美东 一种多功能高频切开刀
WO2014155743A1 (fr) * 2013-03-29 2014-10-02 国立大学法人 東京工業大学 Pince
CN204600602U (zh) * 2015-03-26 2015-09-02 武功县人民医院 一种磨骨钳
CN207270362U (zh) * 2017-02-24 2018-04-27 上海埃尔顿医疗器械有限公司 一种止血夹子装置
CN207590729U (zh) * 2017-04-26 2018-07-10 徐兴玉 一种医用组合式夹钳
CN109044474A (zh) * 2018-09-11 2018-12-21 南京微创医学科技股份有限公司 一种消化道用组织钳
CN209236283U (zh) * 2018-09-11 2019-08-13 南京微创医学科技股份有限公司 一种消化道用组织钳

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202740078U (zh) * 2012-06-21 2013-02-20 杭州南宇医疗器械有限公司 气管锯齿异物钳

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120071898A1 (en) * 2003-09-30 2012-03-22 Brian Keith Wells Through the Scope Tension Member Release Clip
WO2014155743A1 (fr) * 2013-03-29 2014-10-02 国立大学法人 東京工業大学 Pince
CN103750901A (zh) * 2014-02-14 2014-04-30 徐美东 一种多功能高频切开刀
CN204600602U (zh) * 2015-03-26 2015-09-02 武功县人民医院 一种磨骨钳
CN207270362U (zh) * 2017-02-24 2018-04-27 上海埃尔顿医疗器械有限公司 一种止血夹子装置
CN207590729U (zh) * 2017-04-26 2018-07-10 徐兴玉 一种医用组合式夹钳
CN109044474A (zh) * 2018-09-11 2018-12-21 南京微创医学科技股份有限公司 一种消化道用组织钳
CN209236283U (zh) * 2018-09-11 2019-08-13 南京微创医学科技股份有限公司 一种消化道用组织钳

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