CN211511970U

CN211511970U - Cutter under scope

Info

Publication number: CN211511970U
Application number: CN201920924994.4U
Authority: CN
Inventors: 张建国
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-09-18
Anticipated expiration: 2029-06-19

Abstract

The utility model discloses a cutter under scope, include: cutting mechanism, cutting mechanism include two expansion pipes, two cutting filaments and be used for accomodating the pipe of accomodating of expansion pipe, and the expansion pipe includes arc pipe and connecting pipe, and the rear end of arc pipe is connected with the front end of connecting pipe, and the preceding tip of accomodating the pipe is provided with the round pin axle, and the round pin axle is located between two expansion pipes, and the cutting filament passes the expansion pipe, the front end fixed connection of two cutting filaments to the junction is provided with first barb, is located the cutting filament of first barb both sides and is provided with the second barb respectively. The cutter under the endoscope is simple in structure and convenient to operate, the cutting mechanism comprises two expansion pipes, two cutting wires and a storage pipe for storing the expansion pipes, the expansion pipes comprise arc pipes and connecting pipes, the front ends of the cutting wires are fixedly connected, and the cutting wires are provided with first barbs and second barbs; the cutter under the endoscope is matched with the endoscope for use, can cut polyp which is not grown to be convex at the early stage at one time, and has good cutting effect.

Description

Cutter under scope

Technical Field

The utility model relates to the technical field of medical equipment, more specifically say, the utility model relates to a cutter under scope.

Background

Polyps refer to neoplasms growing on the surface of human tissues, and modern medicine generally refers to neoplasms growing on the surface of human mucosa as polyps, including hyperplastic, inflammatory, hamartoma, adenomas and other tumors; for example, the term "vocal cords polyp" growing on the vocal cords, the term "gastric polyp" appearing on the stomach wall, and the term "intestinal polyp" in the intestinal lumen. The electric snare is a common medical instrument for performing endoscopic operations such as gastrointestinal polypectomy and the like, and the existing electric snare basically comprises the following components: the snare is connected with the snare operating handle through a metal wire, and the metal wire is sleeved with a sleeve connected with the snare operating handle.

The existing electric snare is only suitable for the condition that polyps grow out, the electric snare is sleeved on the polyps to cut the polyps, but the polyps which do not grow to be convex in the early stage are in a flat state, and the existing electric snare cannot cut the flat polyps at one time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cutter under scope for solve the not enough of prior art.

In order to achieve the above object, the utility model provides a cutter under scope, include:

cutting mechanism, cutting mechanism includes two expansion pipes, two cutting silks and is used for accomodating the pipe of accomodating of expansion pipe, the expansion pipe includes arc pipe and connecting pipe, the rear end of arc pipe with the front end of connecting pipe is connected, the preceding tip of accomodating the pipe is provided with the round pin axle, the round pin axle is located between two expansion pipes, the cutting silk passes the expansion pipe, two the front end fixed connection of cutting silk to the junction is provided with first barb, is located be provided with the second barb on the cutting silk of first barb both sides respectively.

Preferably, the two arc pipes have opposite arc directions, so that the expansion pipe is in an open state when pushed out of the accommodating pipe, and the arc pipes are made of memory alloy, so that the arc pipes are in a linear state when positioned in the accommodating pipe; the connecting pipe is obtuse-angle shaped.

Preferably, wherein the angle between the first barb, the second barb and the cutting filament is 0-90 °.

Preferably, the diameter of the cutting wire is 0.3mm-0.5 mm.

Preferably, wherein the expansion tube is provided with an insulating coating.

Preferably, wherein, cutting mechanism sets up the distal end at the operation main part, the operation main part includes handle mechanism, steel wire, sheath pipe and spring pipe, the distal end of sheath pipe with accomodate the union coupling, the spring pipe sets up in the sheath pipe, the distal end and two of spring pipe the rear end of connecting pipe is connected, the steel wire is located in the spring pipe, its distal end with the rear end of cutting wire is connected, the proximal end of sheath pipe the proximal end of spring pipe the proximal end of steel wire all with handle mechanism's front end is connected.

Preferably, the handle mechanism comprises a first operating handle, a second operating handle and a third operating handle, the first operating handle is a hollow cylinder, a rotating mechanism connected with the distal end of the sheath tube is arranged at the front end of the first operating handle, a first finger ring is arranged at the rear end of the first operating handle, and two opposite first strip-shaped sliding grooves are arranged on the side wall of the first operating handle;

the second operating handle is arranged in the first operating handle in a sliding manner, the front end of the second operating handle is connected with the near end of the spring tube, the second operating handle is a hollow cylinder, the side wall of the second operating handle is provided with a second strip-shaped sliding groove corresponding to one first strip-shaped sliding groove, a second finger ring is arranged on the second operating handle, and the second finger ring is connected with the side wall of the second operating handle through the other first strip-shaped sliding groove;

the third operating handle is arranged in the second operating handle in a sliding mode, is a hollow cylinder and is connected with the rear end of the steel wire at the front end.

Preferably, a third finger ring and an electrode tip are arranged on a side wall of the third operating handle, the third finger ring and the electrode tip are both connected with the side wall of the third operating handle through one of the first strip-shaped chute and the second strip-shaped chute, the rear end of the steel wire penetrates through the front end of the third operating handle and extends into the third operating handle, and the steel wire is electrically connected with the conductive column of the electrode tip.

Compared with the prior art, the utility model discloses at least, including following beneficial effect:

1. the cutter under the endoscope has simple structure and convenient operation, and by arranging the cutting mechanism, the cutting mechanism comprises two expansion pipes, two cutting wires and a storage pipe for storing the expansion pipes, the expansion pipes comprise arc pipes and connecting pipes, the cutting wires penetrate through the expansion pipes, the front ends of the cutting wires are fixedly connected, the connecting parts are provided with first barbs, and the cutting wires positioned at the two sides of the first barbs are respectively provided with second barbs; the cutter under the endoscope is matched with the endoscope for use, can cut polyp which is not grown to be convex at the early stage at one time, and has good cutting effect.

The present invention provides an under-endoscope cutter, which embodies some of the advantages, objects and features of the present invention through the following description, and some of the advantages, objects and features of the present invention will be understood by those skilled in the art through the study and practice of the present invention.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a front view of a cutting mechanism of an endoscopic lower cutter according to the present invention.

Fig. 2 is a schematic view of a part of the structure of the dilating tube in the endoscopic cutter of the present invention.

Fig. 3 is a schematic view of a partial structure of a cutting wire in the endoscopic cutting device of the present invention.

Fig. 4 is a schematic view of a part of the structure of the endoscopic cutting device of the present invention.

Fig. 5 is a schematic structural view of an operation body in the endoscopic cutting device of the present invention.

Detailed Description

The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can implement the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

As shown in fig. 1-5, the utility model provides an under-endoscope cutter, which comprises:

cutting mechanism 100, cutting mechanism 100 includes two expansion pipes 1, two cutting wires 2 and is used for accomodating expansion pipe 1 accomodate pipe 3, expansion pipe 1 includes arc pipe 11 and connecting pipe 12, the rear end of arc pipe 11 with the front end of connecting pipe 12 is connected, the preceding tip of accomodating pipe 3 is provided with round pin axle 4, round pin axle 4 is located between two expansion pipes 1, cutting wire 2 passes expansion pipe 1, two the front end fixed connection of cutting wire 2 to the junction is provided with first barb 5, is located be provided with second barb 6 on the cutting wire 2 of 5 both sides of first barb respectively.

The working principle of the technical scheme is as follows: this cutter cooperation scope uses under scope, when scope reachs the polyp pathological change department on the internal chamber of patient way, push away extension tube 1 and cutting wire 2 from accomodating pipe 3 in, the arc tube 11 in the extension tube 1 expandes cutting wire 2, then medical personnel control cutting wire 2's front end again and be close to polyp pathological change department, two arc tubes 11 support the top on the chamber wall, first barb 5 on the cutting wire 2, second barb 6 will lock to the not pathological change department of being close to polyp pathological change department, as shown in figure 1, cutting wire 2, two arc tubes 11 are circular roughly and surround polyp pathological change department, then shrink cutting wire 2, cutting wire 2 overlaps polyp pathological change department, cut polyp pathological change department for cutting wire 2 power supply again.

The beneficial effects of the above technical scheme are that: the cutter under the endoscope is simple in structure and convenient to operate, and by arranging the cutting mechanism 100, the cutting mechanism 100 comprises two expansion pipes 1, two cutting wires 2 and a containing pipe 3 for containing the expansion pipes 1, the expansion pipes 1 comprise arc pipes 11 and connecting pipes 12, the cutting wires 2 penetrate through the expansion pipes 1, the front ends of the cutting wires 2 are fixedly connected, the connecting parts are provided with first barbs 5, and the cutting wires 2 positioned on the two sides of the first barbs 5 are respectively provided with second barbs 6; the cutter under the endoscope is matched with the endoscope for use, can cut polyp which is not grown to be convex at the early stage at one time, and has good cutting effect.

In one embodiment, the two arced tubes 11 have opposite arced directions so that the stent 1 is in an expanded state when pushed out of the receiving tube 3, and the arced tubes 11 are made of a memory alloy so that they are in a straight state when positioned in the receiving tube 3; the connecting tube 12 is obtuse-angled.

The working principle of the technical scheme is as follows: the arc directions of the arc-shaped pipes 11 are opposite, so that the arc-shaped pipes 11 can be outwards opened when being pushed out from the accommodating pipes 3, and the cutting wires 2 are unfolded; the connecting pipe 12 is in an obtuse angle shape, the connecting pipe 12 is designed to be an obtuse angle to play a role in strengthening, and meanwhile, the arc-shaped pipe 11 is convenient to abut against the cavity wall.

The beneficial effects of the above technical scheme are that: the cutting wire 2 and the arc-shaped tube 11 can be conveniently used, and the requirements of flat polyp lesion on instruments are met.

In one embodiment, the angle between the first barbs 5, the second barbs 6 and the cutting wire 2 is 0-90 °.

The working principle of the technical scheme is as follows: the angles between the first barbs 5 and the second barbs 6 and the cutting filament 2 can be 0 degrees, 5 degrees, 10 degrees, 20 degrees, 30 degrees, 40 degrees, 50 degrees, 60 degrees, 70 degrees, 80 degrees and 90 degrees, so that polyp lesions in different states can be used, and the polyp lesions can be applied to both flat and long bulges.

The beneficial effects of the above technical scheme are that: the first barb 5 and the second barb 6 are conveniently buckled on the cavity channel.

In one embodiment, the cutting wire 2 has a diameter of 0.3mm to 0.5 mm. The cutting wire 2 is made of a memory alloy.

The working principle of the technical scheme is as follows: the diameter of the cutting wire 2 is 0.3mm-0.5mm to meet the requirements of the medical apparatus of the cavity.

The beneficial effects of the above technical scheme are that: the cutting wire 2 is convenient to use to cut polyp lesion.

In one embodiment, the dilation tube 1 is provided with an insulating coating. The insulating coating is one of an ABS engineering plastic coating, a polytetrafluoroethylene coating, a PE coating, a PVC coating, phenolic resin and epoxy resin.

The working principle of the technical scheme is as follows: the insulating coating plays an insulating role.

The beneficial effects of the above technical scheme are that: the insulating coating prevents the dilation tube 1 from being electrified when the cutting wire 2 is electrified, and the dilation tube can not damage the good cavity wall around the lesion.

In one embodiment, the cutting mechanism 100 is disposed at the distal end of the operating body 101, the operating body 101 includes a handle mechanism 7, a steel wire 8, a sheath 9 and a spring tube 10, the distal end of the sheath 9 is connected to the accommodating tube 3, the spring tube 10 is disposed in the sheath 9, the distal end of the spring tube 10 is connected to the rear ends of the two connecting tubes 12, the steel wire 8 is disposed in the spring tube 10, the distal end of the steel wire is connected to the rear end of the cutting wire 2, and the proximal end of the sheath 9, the proximal end of the spring tube 10, and the proximal end of the steel wire 8 are connected to the front end of the handle mechanism 7.

The working principle of the technical scheme is as follows: the medical staff controls the cutting mechanism through the operation main body 101, respectively controls the movement of the sheath tube 9 at the distal end of the endoscope through the handle mechanism 7, controls the movement adjustment of the spring tube 10 to the expansion tube 1, and controls the movement adjustment of the steel wire 8 to the cutting wire 2.

The beneficial effects of the above technical scheme are that: the operation of the cutting mechanism by medical personnel is convenient.

In one embodiment, the handle mechanism 7 comprises a first operating handle 71, a second operating handle 72 and a third operating handle 73, the first operating handle 71 is a hollow cylinder, the front end of the first operating handle 71 is provided with a rotating mechanism 74 connected with the distal end of the sheath 9, the rear end of the first operating handle 71 is provided with a first finger ring 75, and the side wall of the first operating handle 71 is provided with two opposite first linear sliding grooves 76;

the second operating handle 72 is slidably disposed in the first operating handle 71, the front end of the second operating handle 72 is connected to the proximal end of the spring tube 10, the second operating handle 72 is a hollow cylinder, the sidewall of the second operating handle 72 is provided with a second strip-shaped sliding slot 77 corresponding to one of the first strip-shaped sliding slots 76, and the second operating handle 72 is provided with a second finger ring 78, the second finger ring 78 is connected to the sidewall of the second operating handle 72 through the other first strip-shaped sliding slot 76;

the third operating handle 73 is slidably disposed in the second operating handle 72, and the third operating handle 73 is a hollow cylinder, and the front end of the third operating handle 73 is connected to the rear end of the steel wire 8.

The rotating mechanism 74 is a common technique in the art and will not be described in detail herein.

The working principle of the technical scheme is as follows: when the medical staff uses the handle mechanism 7, the thumb of the left hand can be inserted into the first finger ring 75, the index finger can be inserted into the second finger ring 78, or the operation can be performed according to the habit of the medical staff; medical personnel's right hand can rotate sheath 9 through rotating rotary mechanism 74, and the forefinger of left hand can drive second operation handle 72 and remove in first operation handle 71, and second operation handle 72 then drives spring tube 10 and removes in sheath 9, and spring tube 10 drives connecting pipe 12 and removes, and connecting pipe 12 drives the arc 11 and removes, and then controls opening size of arc 11.

The beneficial effects of the above technical scheme are that: it is convenient for medical personnel to control the cutting mechanism 100 using the handle mechanism 7.

In one embodiment, a third finger ring 79 and an electrode head 80 are disposed on a side wall of the third operating handle 73, the third finger ring 79 and the electrode head 80 are both connected to the side wall of the third operating handle 73 through one of the first strip-shaped sliding groove 76 and the second strip-shaped sliding groove 77, a rear end of the steel wire 8 passes through a front end of the third operating handle 73 and extends into the third operating handle 73, and the steel wire 8 is electrically connected to the conductive column 81 of the electrode head 80.

The working principle of the technical scheme is as follows: the middle finger of medical personnel's left hand inserts in the third ring 79, the movable third handle 73 that drives of middle finger of medical personnel's left hand moves in second handle 72, third handle 73 drives steel wire 8 and moves in spring tube 10, and then drive two cutting filaments 2 and move in expansion tube 1, and then control cutting filament 2 and stretch out the length of expansion tube 1, steel wire 8 is connected with electrode tip 80, medical personnel puts through the high-frequency electricity with electrode tip 80, steel wire 8, cutting filament 2 all switches on, cutting filament 2 cuts polyp pathological change department.

The beneficial effects of the above technical scheme are that: the medical staff can control the third operating handle 73 to operate the cutting wire 2, and then the polyp lesion can be cut.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application suitable for this invention, and further modifications may be readily made by those skilled in the art, and the invention is therefore not limited to the specific details shown and described herein without departing from the general concept defined by the claims and their equivalents.

Claims

1. An under-endoscope cutter, comprising:

cutting mechanism (100), cutting mechanism (100) include two expansion pipes (1), two cutting filaments (2) and are used for accomodating the pipe (3) of accomodating of expansion pipe (1), expansion pipe (1) includes arc pipe (11) and connecting pipe (12), the rear end of arc pipe (11) with the front end of connecting pipe (12) is connected, the preceding tip of accomodating pipe (3) is provided with round pin axle (4), round pin axle (4) are located between two expansion pipes (1), cutting filament (2) are passed expansion pipe (1), two the front end fixed connection of cutting filament (2) to the junction is provided with first barb (5), is located be provided with second barb (6) on cutting filament (2) of first barb (5) both sides respectively.

2. An endoscopic cutter according to claim 1, wherein the curved directions of said two curved tubes (11) are opposite to each other so that said dilating tube (1) is in an open state when pushed out of said accommodating tube (3), said curved tubes (11) being made of a memory alloy so that they are in a straight state when positioned in said accommodating tube (3); the connecting pipe (12) is in an obtuse angle shape.

3. An endoscopic cutter according to claim 1, wherein an angle between said first barb (5), said second barb (6) and said cutting wire (2) is 0 ° -90 °.

4. An endoscopic cutter according to claim 1, wherein said cutting wire (2) has a diameter of 0.3mm-0.5 mm.

5. An endoscopic cutter according to claim 1, wherein said dilation tube (1) is provided with an insulating coating.

6. An endoscopic cutter according to claim 1, wherein said cutting mechanism (100) is disposed at a distal end of an operation body (101), said operation body (101) comprises a handle mechanism (7), a steel wire (8), a sheath tube (9) and a spring tube (10), said sheath tube (9) has a distal end connected to said housing tube (3), said spring tube (10) is disposed in said sheath tube (9), said spring tube (10) has a distal end connected to rear ends of two of said connecting tubes (12), said steel wire (8) is disposed in said spring tube (10) and has a distal end connected to a rear end of said cutting wire (2), and said sheath tube (9), said spring tube (10) and said steel wire (8) have proximal ends connected to a front end of said handle mechanism (7).

7. An endoscopic cutter according to claim 6, wherein said handle mechanism (7) comprises a first operating handle (71), a second operating handle (72) and a third operating handle (73), said first operating handle (71) is a hollow cylinder, the front end of said first operating handle is provided with a rotating mechanism (74) connected with the distal end of said sheath tube (9), the rear end of said first operating handle (71) is provided with a first finger ring (75), the side wall of said first operating handle (71) is provided with two opposite first linear sliding grooves (76);

the second operating handle (72) is slidably arranged in the first operating handle (71), the front end of the second operating handle (72) is connected with the proximal end of the spring tube (10), the second operating handle (72) is a hollow cylinder, the side wall of the second operating handle is provided with a second strip-shaped sliding groove (77) corresponding to one first strip-shaped sliding groove (76), the second operating handle (72) is provided with a second finger ring (78), and the second finger ring (78) is connected with the side wall of the second operating handle (72) through the other first strip-shaped sliding groove (76);

the third operating handle (73) is arranged in the second operating handle (72) in a sliding mode, the third operating handle (73) is a hollow cylinder, and the front end of the third operating handle is connected with the rear end of the steel wire (8).

8. An endoscopic cutter according to claim 7, wherein the side wall of the third operating handle (73) is provided with a third finger ring (79) and an electrode tip (80), the third finger ring (79) and the electrode tip (80) are connected with the side wall of the third operating handle (73) through one of the first strip-shaped sliding groove (76) and the second strip-shaped sliding groove (77), the rear end of the steel wire (8) passes through the front end of the third operating handle (73) and extends into the third operating handle (73), and the steel wire (8) is electrically connected with the conductive column (81) of the electrode tip (80).