CN219000534U - Electrotome snare for endoscopic surgery - Google Patents

Abstract

The utility model discloses an electric cutting snare for endoscopic surgery, which comprises an operating handle, a snare assembly, an outer sheath tube and an electrifying assembly, wherein the snare assembly comprises a snare loop and a snare traction rope, the snare loop is fixedly connected to a first end of the snare traction rope, a fixed end of the outer sheath tube is connected with an operated end of the operating handle, the snare traction rope is arranged in an inner cavity of the outer sheath tube, a second end of the snare traction rope penetrates through the operating handle to be fixedly connected in the operating handle, the electrifying assembly is connected to the operating handle, one end of the electrifying assembly is electrically connected with the snare traction rope, the snare traction rope is made of a conductive material, and the snare loop is made of a tungsten alloy material. The electrotome snare for the endoscopic surgery provided by the utility model not only can improve the surgery accuracy, but also can effectively improve the safety.

Description

Electrotome snare for endoscopic surgery

Technical Field

The utility model relates to the technical field of medical clinical instruments, in particular to an electrotome snare for endoscopic surgery.

Background

The snare is one of the digestive endoscopy accessories commonly used in endoscopic surgical treatment, and is mainly used for excision of polyps of the digestive tract, raised lesions, flat lesions, and even excision of early cancers of the digestive tract (such as EMR, MBM, etc.).

Snare are largely divided into two categories: one is an energized use snare and one is a non-energized mechanical use snare. Wherein the use of the snare by energizing is more extensive, has been long history on polypectomy, and by continuously developing, the material and process of the electric snare are continuously improved, and the variety of the electric snare is also beginning to be various in combination with the requirements of endoscopists; such as an electrical snare that facilitates large sheet lesion retrieval, the polypectomy (requiring transparent cap assistance) procedure is known as EMRC; polypectomy of EMRL using the cerclage method, polypectomy is called EPMR. However, the existing powered snare usually generates smoke during the electro-cutting process, which affects the operation effect of doctors on one hand and has potential safety hazards on the other hand.

The foregoing background is only for the purpose of facilitating an understanding of the principles and concepts of the utility model and is not necessarily in the prior art to the present application and is not intended to be used as an admission that such background is not entitled to antedate such novelty and creativity by the present application without undue evidence prior to the present application.

Disclosure of Invention

In order to solve the technical problems, the utility model provides an electrotome snare for endoscopic surgery, which not only can improve the accuracy of the surgery, but also can effectively improve the safety.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model discloses an electric cutting snare for endoscopic surgery, which comprises an operating handle, a snare assembly, an outer sheath tube and an electrifying assembly, wherein the snare assembly comprises a snare loop and a snare traction rope, the snare loop is fixedly connected to a first end of the snare traction rope, a fixed end of the outer sheath tube is connected with an operated end of the operating handle, the snare traction rope is arranged in an inner cavity of the outer sheath tube, a second end of the snare traction rope penetrates through the operating handle to be fixedly connected in the operating handle, the electrifying assembly is connected to the operating handle, one end of the electrifying assembly is electrically connected with the snare traction rope, the snare traction rope is made of a conductive material, and the snare loop is made of a tungsten alloy material.

Preferably, the snare loop is of oval configuration.

Preferably, the snare loop is formed using a tungsten alloy helical braid structure.

Preferably, the length of the snare loop along the axial direction of the snare traction rope is 35mm to 40mm, and the length of the snare loop perpendicular to the axial direction of the snare traction rope is 20mm to 25mm.

Preferably, the diameter of the snare traction rope is 0.75-0.8 mm, and the length is 1.8-2 m.

Preferably, the snare traction rope is made of a metal material.

Preferably, the diameter of the outer sheath tube is 2.35-2.4 mm.

Preferably, the energizing assembly is connected to the outer wall of the operating handle in an inclined manner.

Preferably, the operation handle comprises a handle base body, a first handle and a second handle, wherein the first end of the handle base body is integrally connected with the first handle, the second handle is hinged to the first handle or the handle base body, the second end of the snare traction rope penetrates through the handle base body and the second handle to be fixedly connected in the second handle, and the fixed end of the outer sheath tube is connected with the second end of the handle base body.

Preferably, the first handle and the second handle are respectively connected with an annular structure.

Preferably, the energizing assembly is disposed at an acute angle to the axial direction of the outer sheath tube and fixedly connected to the outer wall of the handle base.

Compared with the prior art, the utility model has the beneficial effects that: the electrotome snare for the endoscopic surgery, provided by the utility model, has the advantages that the snare loop is made of the tungsten alloy material, smoke generation in the electrotome process can be prevented, the surgery is more accurate, and the safety is effectively improved.

In a further scheme, the operating handle is provided with a first handle and a second handle which are mutually hinged, and the first handle and the second handle are respectively connected and provided with an annular structure, so that the design similar to a scissor handle is adopted, a doctor can conveniently operate and control, the design of human mechanics is met, and the operating handle is beneficial to operation. Further, the power-on assembly is connected to the outer wall of the operating handle in an inclined mode or is arranged at an acute angle with the axial direction of the outer sheath tube, and therefore the power-on assembly is stable and safe.

Drawings

FIG. 1 is a schematic view of the structure of an electrosurgical snare for endoscopic surgery as disclosed in a preferred embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of the snare loop portion of FIG. 1;

FIG. 3 is an enlarged schematic view of the operating handle and powered assembly portion of FIG. 1.

Detailed Description

The following describes embodiments of the present utility model in detail. It should be emphasized that the following description is merely exemplary in nature and is in no way intended to limit the scope of the utility model or its applications.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. In addition, the connection may be for both the fixing action and the circuit/signal communication action.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing embodiments of the utility model and to simplify the description by referring to the figures, rather than to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

As shown in fig. 1, the preferred embodiment of the present utility model provides an electro-cutting snare for an endoscopic surgery, comprising an operation handle 10, a snare assembly 20, an outer sheath 30 and an energizing assembly 40, wherein the snare assembly 20 comprises a snare loop 21 and a snare traction rope 22, the snare loop 21 is fixedly connected to a first end of the snare traction rope 22, a fixed end of the outer sheath 30 is connected to an operated end of the operation handle 10, the snare traction rope 22 is disposed in an inner cavity of the outer sheath 30, a second end of the snare traction rope 22 is threaded into the operation handle 10 to be fixedly connected to the operation handle 10, the energizing assembly 40 is connected to the operation handle 10, one end of the energizing assembly 40 is electrically connected to the snare traction rope 22, the snare traction rope 22 is made of a conductive material, and the snare loop 21 is made of a tungsten alloy material.

Wherein, the snare loop 21 is made of tungsten alloy material, so that smoke generation in the electrotome process can be prevented, the operation is more accurate, and the safety is effectively improved.

Referring to fig. 2, snare loop 21 has an oval structure, and snare loop 21 is formed using a tungsten alloy spiral braid structure. Wherein the length L1 of the snare loop 21 along the axial direction of the snare traction wire 22 is 35mm to 40mm, and the length L2 of the snare loop 21 perpendicular to the axial direction of the snare traction wire 22 is 20mm to 25mm. In some other embodiments, the collar 21 may also be circular (hard oval), oval (soft oval), spiral coil oval, semicircular and hexagonal, and other shapes, wherein the larger the contact area of the collar 21 used for energizing, the better and more stable the cutting effect, and the combination of the "anti-slip" tungsten alloy material selects the spiral braiding, like the "braid of the small girl", so that the contact area of the collar 21 and the polyp is large enough and the "anti-slip" effect is achieved.

The diameter of the snare traction rope 22 is 0.75-0.8 mm, and the length is 1.8-2 m. The snare traction wire 22 is made of a metal material. The diameter of the outer sheath 30 is 2.35-2.4 mm, and the length is 1.8-2 m. Specifically, the snare traction rope 22 is made of steel wires, is conductive, has strong tension, and can achieve a good tightening and cutting effect.

The outer sheath 30 is made of Polytetrafluoroethylene (PTEE), and the operating handle 10 is made of Polycarbonate (PC).

Referring to fig. 3, the operating handle 10 includes a handle base 11, a first handle 12, and a second handle 13, wherein the first end of the handle base 11 is integrally connected with the first handle 12, the second handle 13 is hinged to the first handle 12, the second end of the snare pull wire 22 penetrates the handle base 11 and the second handle 13 to be fixedly connected in the second handle 13, and the fixed end of the outer sheath 30 is connected to the second end of the handle base 11. The second end of the handle base 11 is the operated end of the operating handle 10, and the first handle 12 and the second handle 13 hinged with each other form the operated end of the operating handle 10.

The operation handle 10 is internally provided with a first handle 12 and a second handle 13 which are mutually hinged, the first handle 12 and the second handle 13 are respectively connected and provided with an annular structure, the design is similar to that of a scissor handle, the operation control is convenient for doctors, the design according with human mechanics is convenient, and the operation is facilitated.

The energizing component 40 is obliquely connected to the outer wall of the handle base 11, and the energizing component 40 can be more stable and safer by being obliquely connected to the outer wall of the handle base 11; specifically, the energizing assembly 40 is disposed at an acute angle to the axial direction of the outer sheath 30. While the access wires easily affect the direction of operation if the energizing assembly 40 is accessed perpendicular to the outer wall of the handle base 11, this embodiment advantageously avoids this situation.

The specific operation steps of the electrotome snare for endoscopic surgery provided by the preferred embodiment of the utility model are as follows: 1. inserting the cut-away snare from inside the mirror; 2. looping the polyp with a snare loop 21; 3. the power-on component 40 turns on the power host; 4. the operating handle 10 is tightened and discharged to complete the excision. Wherein the snare loop 21 becomes smaller as the snare pull wire 22 is retracted inside the outer sheath 30, thereby cutting off the meat.

The background section of the present utility model may contain background information about the problem or environment of the present utility model rather than the prior art described by others. Accordingly, inclusion in the background section is not an admission of prior art by the applicant.

The foregoing is a further detailed description of the utility model in connection with specific/preferred embodiments, and it is not intended that the utility model be limited to such description. It will be apparent to those skilled in the art that several alternatives or modifications can be made to the described embodiments without departing from the spirit of the utility model, and these alternatives or modifications should be considered to be within the scope of the utility model. In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "preferred embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction. Although embodiments of the present utility model and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope as defined by the appended claims.

Claims (10)

1. The utility model provides an electric snare that cuts for endoscope operation, its characterized in that, including operating handle, snare subassembly, outer sheath pipe and circular telegram subassembly, the snare subassembly includes snare loop and snare haulage rope, snare loop fixed connection is in snare haulage rope's first end, the stiff end of outer sheath pipe is connected operating handle's operated end, snare haulage rope set up in the inner chamber of outer sheath pipe just snare haulage rope's second end penetrates operating handle is in with fixed connection in the operating handle, circular telegram subassembly connect set up in on the operating handle just circular telegram subassembly's one end electricity is connected snare haulage rope, snare haulage rope adopts conductive material to make, snare loop adopts tungsten alloy material to make.

2. An electro-cutting snare according to claim 1, wherein the snare loop is of oval configuration.

3. The electro-cutting snare of claim 1, wherein the snare loop is formed using a tungsten alloy helical braid structure.

4. An electrotome snare according to claim 1, wherein the snare loop has a length in an axial direction of the snare pull wire of from 35mm to 40mm, and the snare loop has a length perpendicular to the axial direction of the snare pull wire of from 20mm to 25mm.

5. An electrocutting snare according to claim 1, wherein the snare pull wire has a diameter of 0.75mm to 0.8mm and a length of 1.8m to 2m.

6. An electrotome snare according to claim 1, wherein the snare pull wire is made of a metallic material.

7. An electro-cutting snare according to claim 1, wherein the diameter of the outer sheath is from 2.35 to 2.4mm.

8. An electro-cutting snare according to claim 1, wherein the energising assembly is attached obliquely to an outer wall of the operating handle.

9. An electrotome snare according to any one of claims 1 to 8, wherein the operating handle comprises a handle base and a first handle, a second handle, the first end of the handle base and the first handle being integrally connected, and the second handle being hingedly connected to either the first handle or the handle base, the second end of the snare pull wire passing through the handle base and the second handle to be fixedly connected within the second handle, the fixed end of the outer sheath being connected to the second end of the handle base.

10. An electro-cutting snare according to claim 9, wherein the first handle and the second handle are each provided with a loop-shaped structure.

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