WO2016161613A1 - Novel Ligation Device - Google Patents

Novel Ligation Device Download PDF

Info

Publication number
WO2016161613A1
WO2016161613A1 PCT/CN2015/076229 CN2015076229W WO2016161613A1 WO 2016161613 A1 WO2016161613 A1 WO 2016161613A1 CN 2015076229 W CN2015076229 W CN 2015076229W WO 2016161613 A1 WO2016161613 A1 WO 2016161613A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
ligation
draw
ligation device
novel
Prior art date
Application number
PCT/CN2015/076229
Other languages
French (fr)
Inventor
Zhuangli ZHANG
Yonggang Xiang
Hongfeng BAO
Quanbo GE
Original Assignee
Leo Medical Co., Ltd.
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 Leo Medical Co., Ltd. filed Critical Leo Medical Co., Ltd.
Priority to PCT/CN2015/076229 priority Critical patent/WO2016161613A1/en
Publication of WO2016161613A1 publication Critical patent/WO2016161613A1/en

Links

Images

Classifications

    • 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
    • A61B17/12009—Implements for ligaturing other than by clamps or clips, e.g. using a loop with a slip knot
    • A61B17/12013—Implements for ligaturing other than by clamps or clips, e.g. using a loop with a slip knot for use in minimally invasive surgery, e.g. endoscopic surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
    • A61B17/0487—Suture clamps, clips or locks, e.g. for replacing suture knots; Instruments for applying or removing suture clamps, clips or locks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00238—Type of minimally invasive operation
    • A61B2017/00269—Type of minimally invasive operation endoscopic mucosal resection EMR
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00358—Snares for grasping
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00526—Methods of manufacturing

Definitions

  • the present invention relates to the technical field of medical apparatuses, in particular to a novel ligation device, which is used for treating digestive tract Rebagliati polyps and pedunculated polyps.
  • Digestive tract polyps are a common disease and often cause digestive tract bleeding. Partial polyps, especially adenomatous polyps, may become cancerous. Therefore, once a polyp is found during endoscope examination, it shall be extirpated, so as to achieve the goals of curatively extirpating the polyp, preventing cancerization and treating bleeding.
  • methods for treating digestive tract polyps under an endoscope mainly include high-frequency electrocoagulation and electroresection, microwave and laser cauterization, etc.
  • complications such as burning, bleeding and perforation may occur, and the equipment is comparatively expensive, the operating requirement is comparatively high and the wider application thereof in hospitals at a basic level are restricted.
  • the object of the present invention is to provide a method for treating digestive tract Rebagliati and pedunculated polyps under an endoscope by using a novel ligation device with a ligation ring, which is simple, convenient, quick and safe in operation, and the equipment is simple and the price is low.
  • a novel ligation device consists of a ligation device part and a ligation ring matched with the ligation device part, wherein the ligation device consists of a draw hook, a spring tube, a draw filament, a protection tube, a guide tube, a boosting tube, a handle, etc. ; a leading-out tube, a sliding rod fastener, a grip, a sliding rod and a thumb ring are assembled to form the handle.
  • the draw hook is connected with the draw filament and the draw filament is connected with the boosting tube; the boosting tube is connected with a grip of the handle to form a conveying part; the spring tube is connected with the guide tube, and the guide tube is connected with a sliding rod fastener of the handle to form a conveying outer tube.
  • the ligation device slides up and down on the sliding rod through the grip of the handle to control the boosting tube and the draw filament to move forwards and backwards and finally realize the forward and backward movement of the draw hook.
  • the ligation ring consists of a ligation loop, a sleeve and a draw ring; the ligation loop and the draw ring are molded by setting through a manufacturing tool and are connected to form an integral body, and the sleeve is loaded onto the ligation loop through one end of the draw ring to form an integral body.
  • the draw hook is molded by bending a manufacturing tool.
  • the draw hook, the draw filament and the boosting tube are connected into an integral body by welding.
  • the protection tube is sleeved outside the draw filament.
  • the grip of the handle and the boosting tube are connected together by injection molding, and the grip is slidable on the sliding rod to realize the sliding of the draw hook.
  • the spring tube, the guide tube and the sliding rod fastener are connected together by bonding to form a conveying outer tube.
  • the spring tube is a single-cavity tube with a diameter of 1.8mm to 2.3mm.
  • the spring tube is made of 304 stainless steel material.
  • the ligation loop and the pull ring are molded by setting through a manufacturing tool and are connected to form an integral body.
  • the sleeve is loaded onto the ligation loop through one end of the pull ring to form an integral body.
  • the ligation loop and the pull ring are made of polyamide material.
  • the sleeve is made of silica gel material.
  • the present invention has the beneficial effects that: the damage to tissues is small, the polypus is removed completely, the mucous membrane is repaired rapidly, the curative effect is good and the obvious complication is prevented; the operation is simple, rapid and safe; the equipment is simple, and the cost is low and economic.
  • Fig. 1 is a schematic diagram of a ligation device according to embodiment 1 of the present invention.
  • Fig. 2 is a schematic diagram of a ligation ring according to embodiment 1 of the present invention.
  • Fig. 3 is a schematic diagram of ligation device and ligation ring components according to embodiment 1 of the present invention.
  • Fig. 4 is a schematic diagram of a handle according to embodiment 1 of the present invention.
  • the novel ligation device is provided with a ligation device part and a ligation ring matched with the ligation device.
  • the ligation device comprises a draw hook 1, a spring tube 2, a draw filament 3, a protection tube 4, a guide tube 5, a boosting tube 6 and a handle 7, wherein .
  • the draw hook 1, the draw filament 3, the protection tube 4 and the boosting tube 6 are sequentially connected into an integral body to form a conveying part;
  • the spring tube 2, the guide tube 5 and the handle 7 are sequentially connected into an integral body to form a conveying outer tube;
  • the ligation ring comprises a ligation loop 8, a sleeve 9 and a pull ring 10.
  • the ligation loop 8 and the pull ring 10 are molded by setting through a manufacturing tool and are connected to form an integral body, and the sleeve 9 is loaded onto the ligation loop through one end of the pull ring 10 to form an integral body.
  • the operating method of the present invention comprises the following steps:
  • the present invention has the beneficial effects of simple structure, reliable hooking and small tissue damage.
  • the polypus is removed completely, the mucous membrane is repaired rapidly, the curative effect is good and the obvious complication is prevented.
  • the operation is simple, rapid and safe.
  • the equipment is simple, and the cost is low and economic.

Abstract

A novel ligation device comprises a ligation device part and a ligation ring matched to the ligation device part. The ligation device part comprises a draw hook (1), a spring tube (2), a draw filament (3), a protection tube (4), a guide tube (5), a boosting tube (6) and a handle (7). The draw hook (1) is connected to the draw filament (3) which is connected to the boosting tube (6). The boosting tube (6) and the grip (13) of the handle (7) are connected to form a conveying part. The spring tube (2) is connected to the guide tube (5). The guide tube (5) is connected with the slide bar buckle of the handle (7) to form a conveying outer tube. The ligation ring comprises a ligation loop (8), a sleeve (9) and a draw ring (10). The ligation loop (8) and the draw ring (10) are molded by manufacture tools to form an integral body. The sleeve (9) is loaded on the ligation loop to form an integral body by one end of the draw ring (10). The novel ligation device has simple structure, reliable hooking and small tissue damage. The polypus is removed completely, the mucous membrane is repaired rapidly, the curative effect is good and the obvious complication is prevented. The operation is simple, rapid and safe. The equipment is simple, and the cost is low and economic.

Description

Novel Ligation Device
Background of the Present Invention
Field of Invention
The present invention relates to the technical field of medical apparatuses, in particular to a novel ligation device, which is used for treating digestive tract Rebagliati polyps and pedunculated polyps.
Description of Related Arts
Digestive tract polyps are a common disease and often cause digestive tract bleeding. Partial polyps, especially adenomatous polyps, may become cancerous. Therefore, once a polyp is found during endoscope examination, it shall be extirpated, so as to achieve the goals of curatively extirpating the polyp, preventing cancerization and treating bleeding. At present, methods for treating digestive tract polyps under an endoscope mainly include high-frequency electrocoagulation and electroresection, microwave and laser cauterization, etc. However, complications such as burning, bleeding and perforation may occur, and the equipment is comparatively expensive, the operating requirement is comparatively high and the wider application thereof in hospitals at a basic level are restricted.
Summary of the Present Invention
In order to solve the above-mentioned problems, the object of the present invention is to provide a method for treating digestive tract Rebagliati and pedunculated polyps under an endoscope by using a novel ligation device with a ligation ring, which is simple, convenient, quick and safe in operation, and the equipment is simple and the price is low.
In order to realize the above-mentioned object, the present invention adopts the following technical solution:
A novel ligation device consists of a ligation device part and a ligation ring matched with the ligation device part, wherein the ligation device consists of a draw hook, a spring tube, a draw filament, a protection tube, a guide tube, a boosting tube, a handle, etc. ； a leading-out tube, a sliding  rod fastener, a grip, a sliding rod and a thumb ring are assembled to form the handle. The draw hook is connected with the draw filament and the draw filament is connected with the boosting tube； the boosting tube is connected with a grip of the handle to form a conveying part； the spring tube is connected with the guide tube, and the guide tube is connected with a sliding rod fastener of the handle to form a conveying outer tube. The ligation device slides up and down on the sliding rod through the grip of the handle to control the boosting tube and the draw filament to move forwards and backwards and finally realize the forward and backward movement of the draw hook. The ligation ring consists of a ligation loop, a sleeve and a draw ring； the ligation loop and the draw ring are molded by setting through a manufacturing tool and are connected to form an integral body, and the sleeve is loaded onto the ligation loop through one end of the draw ring to form an integral body.
In the novel ligation device, the draw hook is molded by bending a manufacturing tool.
In the novel ligation device, the draw hook, the draw filament and the boosting tube are connected into an integral body by welding.
In the novel ligation device, the protection tube is sleeved outside the draw filament.
In the novel ligation device, the grip of the handle and the boosting tube are connected together by injection molding, and the grip is slidable on the sliding rod to realize the sliding of the draw hook.
In the novel ligation device, the spring tube, the guide tube and the sliding rod fastener are connected together by bonding to form a conveying outer tube.
In the novel ligation device, the spring tube is a single-cavity tube with a diameter of 1.8mm to 2.3mm.
In the novel ligation device, the spring tube is made of 304 stainless steel material.
In the novel ligation device, the ligation loop and the pull ring are molded by setting through a manufacturing tool and are connected to form an integral body.
In the novel ligation device, the sleeve is loaded onto the ligation loop through one end of the pull ring to form an integral body.
In the novel ligation device, the ligation loop and the pull ring are made of polyamide material.
In the novel ligation device, the sleeve is made of silica gel material.
The present invention has the beneficial effects that: the damage to tissues is small, the  polypus is removed completely, the mucous membrane is repaired rapidly, the curative effect is good and the obvious complication is prevented； the operation is simple, rapid and safe； the equipment is simple, and the cost is low and economic.
Brief Description of the Drawings
The present invention is further described below in combination with the drawings.
Fig. 1 is a schematic diagram of a ligation device according to embodiment 1 of the present invention；
Fig. 2 is a schematic diagram of a ligation ring according to embodiment 1 of the present invention；
Fig. 3 is a schematic diagram of ligation device and ligation ring components according to embodiment 1 of the present invention；
Fig. 4 is a schematic diagram of a handle according to embodiment 1 of the present invention；
Wherein, 1-draw hook, 2-spring tube, 3-draw filament, 4-protection tube, 5-guide tube, 6-boosting tube, 7-handle, 8-ligation ring, 9-sleeve, 10-pull ring, 11-leading-out tube, 12-sliding rod fastener, 13-grip, 14-sliding rod, 15-thumb ring.
Detailed Description of the Preferred Embodiments
The present invention is further described below in combination with the embodiments and the drawings.
Embodiment 1
Referring to figures 1 to 4, the novel ligation device according to the embodiment of the present invention is provided with a ligation device part and a ligation ring matched with the ligation device. The ligation device comprises a draw hook 1, a spring tube 2, a draw filament 3, a protection tube 4, a guide tube 5, a boosting tube 6 and a handle 7, wherein . the draw hook 1, the draw filament 3, the protection tube 4 and the boosting tube 6 are sequentially connected into an integral body to form a conveying part； the spring tube 2, the guide tube 5 and the handle 7 are sequentially connected into an integral body to form a conveying outer tube； the ligation ring comprises a ligation loop 8, a sleeve 9 and a pull ring 10. The ligation loop 8 and the pull ring 10 are molded by  setting through a manufacturing tool and are connected to form an integral body, and the sleeve 9 is loaded onto the ligation loop through one end of the pull ring 10 to form an integral body.
The operating method of the present invention comprises the following steps:
1) installing the pull ring 10 of the ligation ring on the draw hook 1 of the ligation device, and delivering them together into a biopsy channel of an endoscope；
2) under the monitoring of the endoscope, delivering the ligation device and the ligation ring to a predetermined position, pushing the grip 13 of the handle 7 to move towards a far end and tying the ligation ring at the position of a polyp to be removed； after the ligation ring is tied, pulling the grip 13 of the handle 7 to move towards a near end, wherein the sleeve 9, under the pressing of the spring tube 2, enables the ligation ring to slowly become smaller to achieve the goal of ligation.
3) finally pushing the grip 13 of the handle 7 of the ligation device to move towards the far end, such that the draw hook 1 and the pull ring 10 are exposed outside the spring tube 2, thereby separating the draw hook 1 from the pull ring 10 and withdrawing the ligation device.
The present invention has the beneficial effects of simple structure, reliable hooking and small tissue damage. The polypus is removed completely, the mucous membrane is repaired rapidly, the curative effect is good and the obvious complication is prevented. The operation is simple, rapid and safe. The equipment is simple, and the cost is low and economic.
The above-mentioned embodiments are used for explaining and describing the present invention, rather than limiting the present invention. Any modification and change made to the present invention within the spirit of the present invention and the protection scope of the claims shall fall into the protection scope of the present invention.

Claims (9)

  1. A novel ligation device consisting of a ligation device part and a ligation ring matched with the ligation device part, wherein the ligation device consists of a draw hook, a spring tube, a draw filament, a protection tube, a guide tube, a boosting tube, a handle, etc. ； the draw hook is connected with the draw filament, and the draw filament is connected with the boosting tube； the boosting tube is connected with a grip of the handle to form a conveying part； the spring tube is connected with the guide tube, and the guide tube is connected with a sliding rod fastener of the handle to form a conveying outer tube； the ligation ring is made of a solid polyamide filament through hot melting and comprises a ligation loop, a hot-melt knot and a pull ring, wherein the ligation loop, the hot-melt knot and the pull ring are integrally molded, the ligation loop and the pull ring are connected by the a hot-melt knot, and the sleeve is loaded onto the ligation loop through one end of the pull ring to form an integral body.
  2. The novel ligation device according to claim 1, characterized in that the delivery part is nested in a cavity passage of the conveying outer pipe, the draw hook at the head end of the conveying part is located at a far end of the conveying outer pipe and the draw hook is slidable up and down through a sliding rod in the handle.
  3. The novel ligation device according to claim 1, characterized in that the draw hook is molded by bending a manufacturing tool.
  4. The novel ligation device according to claim 1, characterized in that the draw hook, the draw filament and the boosting tube are connected into an integral body by welding, which is slidable back and forth in the cavity passage of the conveying outer pipe.
  5. The novel ligation device according to claim 1, characterized in that the grip of the handle and the boosting tube are connected into an integral body by injection molding, and the grip is slidable up and down on the sliding rod, such that the draw hook is slidable in the cavity passage of the conveying outer tube.
  6. The novel ligation device according to claim 1, characterized in that the protection tube is sleeved outside the draw filament.
  7. The novel ligation device according to claim 1, characterized in that the spring tube is a single-cavity tube with a diameter of 1.8mm to 2.3mm.
  8. The novel ligation device according to claim 1, characterized in that the spring tube is made of 304 stainless steel material, outside the spring tube is provided a cannula sheath, which is securely attached with an end of the guide tube.
  9. The novel ligation device according to claim 1, characterized in that the sleeve is of a transparent hollow tubular structure with elasticity and is made of a silica gel or rubber material.
PCT/CN2015/076229 2015-04-10 2015-04-10 Novel Ligation Device WO2016161613A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/076229 WO2016161613A1 (en) 2015-04-10 2015-04-10 Novel Ligation Device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/076229 WO2016161613A1 (en) 2015-04-10 2015-04-10 Novel Ligation Device

Publications (1)

Publication Number Publication Date
WO2016161613A1 true WO2016161613A1 (en) 2016-10-13

Family

ID=57073024

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/076229 WO2016161613A1 (en) 2015-04-10 2015-04-10 Novel Ligation Device

Country Status (1)

Country Link
WO (1) WO2016161613A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107281613A (en) * 2017-07-03 2017-10-24 大连大学 Extract device in extension type nose bile duct oral cavity
CN109820560A (en) * 2019-03-04 2019-05-31 姜桦 Application of spring leaf and products thereof
CN111248969A (en) * 2020-01-23 2020-06-09 北京领健医疗科技有限公司 Closure clip delivery system
CN112137676A (en) * 2020-09-21 2020-12-29 苏州法兰克曼医疗器械有限公司 Snare for flat polyp operation

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07155333A (en) * 1993-11-22 1995-06-20 Kaigen:Kk Ligator for phlebeurysm
US5906620A (en) * 1995-06-29 1999-05-25 Nakao; Naomi L. Surgical cauterization snare with ligating suture
WO2006082811A1 (en) * 2005-02-04 2006-08-10 Olympus Corporation Medical suture ligation device and medical suture ligation method
WO2006082810A1 (en) * 2005-02-04 2006-08-10 Olympus Corporation Medical suture ligation device and medical suture ligation tool
CN201481494U (en) * 2009-08-27 2010-05-26 安瑞医疗器械(杭州)有限公司 Rotary snare
CN203647415U (en) * 2013-12-27 2014-06-18 常州乐奥医疗科技有限公司 Novel ligation device
CN203724154U (en) * 2013-10-25 2014-07-23 常州乐奥医疗科技有限公司 Novel medical endoscope suture line ring

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07155333A (en) * 1993-11-22 1995-06-20 Kaigen:Kk Ligator for phlebeurysm
US5906620A (en) * 1995-06-29 1999-05-25 Nakao; Naomi L. Surgical cauterization snare with ligating suture
WO2006082811A1 (en) * 2005-02-04 2006-08-10 Olympus Corporation Medical suture ligation device and medical suture ligation method
WO2006082810A1 (en) * 2005-02-04 2006-08-10 Olympus Corporation Medical suture ligation device and medical suture ligation tool
CN201481494U (en) * 2009-08-27 2010-05-26 安瑞医疗器械(杭州)有限公司 Rotary snare
CN203724154U (en) * 2013-10-25 2014-07-23 常州乐奥医疗科技有限公司 Novel medical endoscope suture line ring
CN203647415U (en) * 2013-12-27 2014-06-18 常州乐奥医疗科技有限公司 Novel ligation device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107281613A (en) * 2017-07-03 2017-10-24 大连大学 Extract device in extension type nose bile duct oral cavity
CN109820560A (en) * 2019-03-04 2019-05-31 姜桦 Application of spring leaf and products thereof
CN111248969A (en) * 2020-01-23 2020-06-09 北京领健医疗科技有限公司 Closure clip delivery system
CN111248969B (en) * 2020-01-23 2021-05-18 北京领健医疗科技有限公司 Closure clip delivery system
CN112137676A (en) * 2020-09-21 2020-12-29 苏州法兰克曼医疗器械有限公司 Snare for flat polyp operation
CN112137676B (en) * 2020-09-21 2021-07-06 苏州法兰克曼医疗器械有限公司 Snare for flat polyp operation

Similar Documents

Publication Publication Date Title
WO2016161613A1 (en) Novel Ligation Device
US9795390B2 (en) Hemostatic clip
US10231718B2 (en) Tissue extraction devices and related methods
US8926642B2 (en) Method for extracting tubular structures
US9993249B2 (en) Device combination for connecting hollow organs (anastomosis)
US20140249530A1 (en) Cerclage wire insertion device
BR122013004123A2 (en) METHODS AND APPARATUS FOR STORAGE AND / OR INTRODUCTION OF IMPLANTS FOR OCA ANATOMIC STRUCTURE
JP2014509232A (en) Disposable remote injection needle for endoscope
TW201235002A (en) Method and apparatus for guiding a suture thread
US11696780B2 (en) Papillotome for percutaneous endoscopic gastrostomy
CN107028638B (en) Novel multipurpose ligature device and use method thereof
US20230000496A1 (en) Tether traction systems and methods of use thereof
CN203647415U (en) Novel ligation device
KR20160044509A (en) Catheter
EP2950703B1 (en) Endoscopic injection needle device
CN204050628U (en) Nose bile duct traction apparatus
CN106725689A (en) A kind of ligation under endoscope coil induction system
JP2000342600A (en) Snare for endoscope
CN114469216A (en) Suture adjusting mechanism of blood vessel stitching instrument
CN103040492B (en) Automatic control contracting anvil conveying device passed through mouth
JP2001000440A (en) Clipping tool for endoscope
CN108635007B (en) Disposable repeatable opening and closing endoscope hemostatic clamp
CN220423931U (en) Automatic thread cutting ligator
CN103054617B (en) Contractible and telescopic oral conveying staple anvil device
CN220001849U (en) Ligation device and release device thereof

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15888170

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15888170

Country of ref document: EP

Kind code of ref document: A1