CN114145836B - Three-wire snare for use under a digestive endoscope - Google Patents
Three-wire snare for use under a digestive endoscope Download PDFInfo
- Publication number
- CN114145836B CN114145836B CN202111455696.3A CN202111455696A CN114145836B CN 114145836 B CN114145836 B CN 114145836B CN 202111455696 A CN202111455696 A CN 202111455696A CN 114145836 B CN114145836 B CN 114145836B
- Authority
- CN
- China
- Prior art keywords
- snare
- traction wire
- base
- wire
- metal ring
- Prior art date
- Legal status (The legal status 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 status listed.)
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- 230000001079 digestive effect Effects 0.000 title claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 64
- 208000037062 Polyps Diseases 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 description 3
- 210000001035 gastrointestinal tract Anatomy 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00601—Cutting
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00982—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1405—Electrodes having a specific shape
- A61B2018/1407—Loop
- A61B2018/141—Snare
Abstract
The invention discloses a three-wire snare applied under a digestive endoscope, which comprises a snare assembly and an operation assembly, wherein the snare assembly comprises a snare metal ring, a snare auxiliary traction wire, a snare base and a snare device shell, the operation assembly comprises a metal ring operating rod, a metal ring operating handle, a traction wire operating rod, a traction wire operating handle and a base assembly, one end of the snare auxiliary traction wire is connected with the end part of the snare metal ring, and the other end of the snare auxiliary traction wire is connected with the traction wire operating rod and is controlled through the traction wire operating handle. The invention forms the snare main body by the metal snare and the traction wire connected with the snare, thereby smartly compensating larger polyps and difficult-to-snare polyps of polyps at difficult positions caused by a single plane of the traditional snare, and leading the operability and deformability of the snare to be higher and more flexible. When the polyp is snared, the size, the angle and the like of the snares can be further adjusted by changing the angle and the length of the traction wire, so that the faster and better polyp snaring can be realized.
Description
Technical Field
The invention relates to the field of snare, in particular to a three-wire snare applied under a digestive endoscope.
Background
Currently, the predominant snare on the market is a ring-shaped snare, which is convenient when the snare is suitably performed on a relatively small polyp or polyp site.
However, existing snare devices suffer from certain drawbacks:
1. when encountering a larger polyp, the snare is difficult to snare the whole polyp inside quickly, which is not convenient enough;
2. furthermore, when a polyp at a more difficult location is encountered, due to the restriction of the plane of the snare itself, there occurs a problem that an appropriate angle cannot be obtained in a short time regardless of the angle of the plane of the snare or the direction of the endoscope probe so that the polyp can be completely snared, even by an experienced endoscopist, which greatly reduces the operation efficiency while also bringing a higher anesthesia risk to the patient.
Disclosure of Invention
In order to overcome the shortcomings of the prior art, one of the objects of the present invention is to provide a three-wire snare for use under a digestive endoscope, which can solve the problem of inefficiency.
One of the purposes of the invention is realized by adopting the following technical scheme:
a three-wire snare applied under a digestive endoscope comprises a snare assembly and an operation assembly,
the snare assembly comprises a snare metal loop, a snare auxiliary traction wire, a snare base and a snare device shell, wherein one end of the snare metal loop is in a snare shape, the other end of the snare metal loop stretches into the snare device shell and is connected and fixed to a metal loop control rod after being converged by a snare metal wire convergence device fixed on the snare base, and the snare metal loop is connected and fixed to the snare device shell through the snare base fixed on the inner wall of the snare device shell; the operation assembly comprises a snare base fixed with the inner wall of the snare device shell, a snare metal wire convergence device connected with the snare base, a metal ring operating lever connected with the snare metal ring, a metal ring operating handle connected with the metal ring operating lever, a traction wire operating handle connected with the traction wire operating lever and a base assembly, wherein one end of a snare auxiliary traction wire is connected with the end part of the snare metal ring, and the other end of the snare auxiliary traction wire is connected with the traction wire operating lever and is controlled through the traction wire operating handle.
Further, a traction wire housing is provided outside the snare auxiliary traction wire.
Further, the snare assist traction wire has a length greater than the traction wire housing.
Further, the snare base is provided with snare wire convergence means.
Further, the snare base is slidably mounted to the snare device housing.
Further, the base assembly is provided with a traction wire sliding rail and a traction wire operating sliding rail which is matched with the traction wire sliding rail, the snare assists the traction wire to be connected with the traction wire operating sliding rail, and the traction wire operating sliding rail is connected with the traction wire operating handle.
Further, the snare base is cylindrical, the snare base being hollow inside.
Further, the base assembly is cylindrical.
Further, the area of the base assembly is larger than the area of the snare base.
Further, the metal ring control handle is circular.
Compared with the prior art, the invention has the beneficial effects that:
the snare assembly comprises a snare metal loop, a snare auxiliary traction wire, a snare base and a snare device shell, wherein one end of the snare metal loop is in a snare shape, the other end of the snare metal loop stretches into the snare device shell, is converged by a snare metal wire convergence device fixed on the snare base, and is connected and fixed on a metal loop control rod after passing through the snare base fixed on the inner wall of the snare device shell; the operation assembly comprises a snare metal wire convergence device connected with a snare base, a metal ring operating rod connected with the metal ring, a metal ring operating handle connected with the metal ring operating rod, a traction wire operating handle connected with the traction wire operating rod and a base assembly, wherein one end of a snare auxiliary traction wire is connected with the end part of the snare metal ring, and the other end of the snare auxiliary traction wire is connected with the traction wire operating rod and is controlled through the traction wire operating handle. When a polyp is found, the snare metal ring and the snare are assisted to draw the wire to be released through the traction wire control handle and the metal ring control handle, the snare metal ring is further close to the polyp, the length of the snare assisted to draw the wire and the angle of the snare metal ring are adjusted through the traction wire control handle, the snare metal ring is enabled to deform and adapt to the size of the target polyp in angle, the traction wire control handle is pulled to enable the snare assisted to draw the wire to be recovered, the snare metal ring is enabled to bend to form a spoon shape to cover the polyp, the snare process is completed more quickly, the situation that the snare is separated from the polyp due to shaking of an endoscope or shrinkage of a digestive tract can be reduced, better and faster polyp snare is achieved, and then the polyp excision is completed through a power supply.
The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention, as well as the preferred embodiments thereof, together with the following detailed description of the invention, given by way of illustration only, together with the accompanying drawings.
Drawings
FIG. 1 is a block diagram of a preferred embodiment of a three-coil snare for use under a digestive endoscope of the present invention;
FIG. 2 is a left side view of the three-coil snare of FIG. 1 in use under a digestive endoscope;
fig. 3 is a right side view of the tri-coil snare of fig. 1 in use under a digestive endoscope.
In the figure: 10. a snare assembly; 11. sleeving a metal ring; 12. the snare aids in pulling the wire; 121. a traction wire housing; 13. a snare base; 14. a snare wire convergence device; 15. a snare device housing; 20. an operating assembly; 21. a metal loop joystick; 22. a metal ring operating handle; 23. a traction wire lever; 24. a traction wire operating handle; 25. a base assembly; 251. a traction wire sliding rail; 252. the traction wire operates the sliding rail.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-3, a three-wire snare for endoscopic application comprises a snare assembly 10 and an operation assembly 20, wherein the snare assembly 10 comprises a snare metal loop 11, a snare auxiliary traction wire 12, a snare base 13 and a snare device housing 15, one end of the snare metal loop 11 is in a snare shape, and the other end extends into the snare device housing 15 to be fixedly connected with a metal loop operation rod 21 in the snare device housing 15;
the operating assembly 20 comprises a snare base 13 connected to the snare device housing 15, a snare wire convergence device 14 connected to the snare base 13, a snare wire lever 22 connected to the snare wire lever 21, a pull wire lever 23, a pull wire lever 24 connected to the pull wire lever 23, a base assembly 25, the snare assist pull wire 12 having one end connected to an end of the snare wire 11 and the other end connected to the pull wire lever 23 and being manipulated by the pull wire lever 24. The invention forms the snare main body by the metal snare and the traction wire connected with the snare, thereby smartly compensating larger polyps and difficult-to-snare polyps of the polyps at difficult positions caused by a single plane of the traditional snare, and leading the operability and deformability of the snare to be higher and more flexible. When the polyp is snared, the size, the angle and the like of the snares can be further adjusted by changing the angle and the length of the traction wire, so that the faster and better polyp snaring can be realized.
Working principle: when a polyp is found, the snare metal ring 11 and the snare auxiliary traction wire 12 are discharged through the traction wire control handle 24 and the metal ring control handle 22, the snare metal ring 11 is further close to the polyp, the length of the snare auxiliary traction wire 12 and the angle of the snare metal ring 11 are adjusted through the traction wire control handle 24, the deformation and the angle of the snare metal ring 11 are suitable for the size of the target polyp, in the process of the snare polyp, the traction wire control handle 24 enables the snare auxiliary traction wire 12 to be recovered, the snare metal ring 11 is bent to form a spoon shape to hold the polyp, the snare process is completed more quickly, the situation that the snare is separated from the polyp due to shaking of an endoscope or shrinkage of a digestive tract can be reduced, better and faster snare is realized, and then the power supply is communicated to complete the excision of the polyp.
Preferably, the snare-assisted traction wire 12 is provided on the outside with a traction wire housing 121. The snare assist traction wire 12 has a length greater than the traction wire housing 121, improving guiding efficiency.
Preferably, the snare base 13 is provided with snare wire convergence means 14, improving convergence efficiency.
Preferably, the snare base 13 is slidably mounted to the snare device housing 15. The base assembly 25 is provided with a traction wire sliding rail 251 and a traction wire operating sliding rail 252 which is matched with the traction wire sliding rail 251, the snare assists the traction wire 12 to be connected with the traction wire operating sliding rail 252, and the traction wire operating sliding rail 252 is connected with the traction wire operating handle 24. The snare base 13 is cylindrical, and the snare base 13 is hollow inside. The base assembly 25 is cylindrical. The area of the base assembly 25 is larger than the area of the snare base 13. The metal ring control handle 22 is in a circular ring shape. The whole device has compact structure, novel structure, ingenious design, strong applicability and convenient popularization. The invention skillfully compensates larger polyps and difficult-to-snare polyps of the polyps at difficult positions caused by a single plane of the traditional snare by the third traction wire, so that the operability and deformability of the snare are higher and the snare is more flexible. The snare is changed from two dimensions to three dimensions, and the size, angle and the like of the snare can be further adjusted by changing the angle and the length of the traction wire when the polyp is snared, so that faster and better snare can be realized.
The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.
Claims (1)
1. A three-wire snare for use under a digestive endoscope, comprising a snare assembly, an operating assembly, characterized in that:
the snare assembly comprises a snare metal loop, a snare auxiliary traction wire, a snare base and a snare device shell, wherein one end of the snare metal loop is in a snare shape, the other end of the snare metal loop stretches into the snare device shell and is connected and fixed to a metal loop control rod after being converged by a snare metal wire convergence device fixed on the snare base, and the snare metal loop is connected and fixed to the snare device shell through the snare base fixed on the inner wall of the snare device shell;
the operation assembly comprises a snare metal wire convergence device connected with a snare base, a metal ring operation rod connected with the snare metal ring, a metal ring operation handle connected with the metal ring operation rod, a traction wire operation handle connected with the traction wire operation rod, and a base assembly, wherein one end of a snare auxiliary traction wire is connected with the end part of the snare metal ring, the other end of the snare auxiliary traction wire is connected with the traction wire operation rod and is operated through the traction wire operation handle, a traction wire shell is arranged on the outer side of the snare auxiliary traction wire, the length of the snare auxiliary traction wire is larger than that of the traction wire shell, the base assembly is provided with a traction wire sliding rail and a traction wire operation sliding rail which are installed in a matched mode, the snare auxiliary traction wire is connected with the traction wire operation sliding rail, the traction wire operation sliding rail is connected with the traction wire operation handle, and the metal ring operation handle is in a circular ring shape; the traction wire sliding rail is U-shaped along one end of the snare assembly; the traction wire operates the sliding rail to be U-shaped along one end of the operation assembly; the snare metal ring is close to the polyp, and the length of the snare auxiliary traction wire and the angle between the snare auxiliary traction wire and the snare metal ring are adjusted through a traction wire control handle; the snare base is cylindrical, and the snare base is hollow; the base component is cylindrical; the area of the base assembly is larger than the area of the snare base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111455696.3A CN114145836B (en) | 2021-12-01 | 2021-12-01 | Three-wire snare for use under a digestive endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111455696.3A CN114145836B (en) | 2021-12-01 | 2021-12-01 | Three-wire snare for use under a digestive endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114145836A CN114145836A (en) | 2022-03-08 |
| CN114145836B true CN114145836B (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111455696.3A Active CN114145836B (en) | 2021-12-01 | 2021-12-01 | Three-wire snare for use under a digestive endoscope |
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| Country | Link |
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| CN (1) | CN114145836B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114145836A (en) | 2022-03-08 |
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