Disposable electric snare

Abstract

The utility model discloses a disposable electric snare, which relates to the technical field of medical instruments and comprises an electrode ring, a sliding handle and a fixed handle, one side of the sliding handle close to the electrode ring is fixedly connected with an insulating tube, the inner side of the insulating tube is fixedly connected with an electrode column, and the electrode column is fixedly connected with the electrode ring. The fixed handle and the sliding handle are movably connected, the end, close to the electrode ring, of the fixed handle is fixedly connected with an outer pipe, the outer pipe and the insulating pipe are in sliding connection, and the fixed handle is provided with a fixing assembly used for the sliding handle. Meanwhile, after a polyp of a patient is cut off during use, the polyp can be attached to the electrode ring, relative sliding of the electrode ring caused by mistaken touch is prevented, follow-up clamping is facilitated, and meanwhile accidental injury to the patient is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially is related to disposable electric snare. BACKGROUND

[0002] The electric snare is a kind of medical equipment matched with endoscope, mainly used to cut polyp or other redundant tissue in digestive tract, and its structure usually includes wire cutting ring, transmission part and handle part, has variable diameter diamond type design to adapt to different lesions, and the electric snare is made of imported medical stainless steel wire rope, has good elasticity and strength, can realize cold cutting and hot cutting function, and is convenient to operate, in addition, its snare shape is various, including oval, hexagon etc., to adapt to the demand of different polyp shape, and the electric snare also has good shape keeping function, ensures not to be deformed in multiple opening and closing, simultaneously provides multiple hardness selection to meet different clinical needs.

[0003] The disposable electric snare is a kind of medical instrument specially designed for medical operation, is made of special steel wire rope, ensures snare elasticity and strength, and it is compact in structure, convenient to operate, helps to improve operation efficiency and success rate, provides oval, hexagonal etc. Various snare shapes, adapts to different polyp needs, is used in cooperation with high-frequency operation equipment, realizes safe, effective and rapid polyp resection, and one-time design avoids cross-infection risk, and it is an indispensable helper in modern medical operation.

[0004] Most of the existing disposable electric snares may cause the electrode ring to slide out of the outer tube after cutting polyp due to the lack of fixing of the sliding handle, cause secondary injury to the wound of patient, and the electrode ring may be designed to be relatively smooth, cause the polyp to fall after cutting, and be not easy to be clamped subsequently, therefore the disposable electric snare is proposed. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the operation inconvenience and the falling after cutting polyp in prior art, and proposes a disposable electric snare.

[0006] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a disposable electric snare, including electrode ring, sliding handle and fixed handle, one side of sliding handle is fixedly connected with insulating tube near electrode ring, the inboard of insulating tube is fixedly connected with electrode post, electrode post is fixedly connected between electrode ring, the activity connection between fixed handle and sliding handle, one end of fixed handle is fixedly connected with outer tube near electrode ring, the sliding connection between outer tube and insulating tube, be provided with the fixed component for sliding handle on fixed handle, the fixed component includes rotating block and fixed peg, through setting fixed component, can prevent electrode ring from relative sliding in the transportation process, leads to electrode ring to move out the protection of outer tube, occurs irreversible change, leads to electrode ring to appear damage, effectively protects the equipment.

[0008] The above technical solution further comprises:

[0009] One end of the outer tube near the electrode ring is provided with a thread.

[0010] The outer side of the fixed handle is provided with a sliding groove, the sliding groove penetrates through the fixed handle, and the sliding groove is in sliding connection with the sliding handle.

[0011] One side of the fixed handle near the rotating block is provided with a fixed hole, and the opening size of the fixed hole is matched with the size of the fixed peg.

[0012] The side surface of the fixed handle is provided with a sliding hole, and the side of the fixed handle near the sliding hole is fixedly connected with a fixed cylinder.

[0013] The fixed peg is in sliding connection between the fixed cylinder and the sliding hole, and through the fixed component and the electrode ring, after the polyp of the patient is removed, the polyp can be attached to the electrode ring, the electrode ring is fixed through the fixed component, the relative sliding caused by accidental touch is prevented, the subsequent clamping is facilitated, and the patient is prevented from being accidentally injured.

[0014] The inner side of the fixed cylinder is fixedly connected with a limiting block in a symmetrical manner, and the two limiting blocks and the fixed peg are fixedly connected with a spring.

[0015] One end of the fixed peg away from the fixed handle is fixedly connected with a fixed column, the fixed column is in rotary connection with the rotating block, and the rotating block is in contact with the fixed cylinder.

[0016] The utility model has the following beneficial effects:

[0017] 1、 through setting fixed component, can prevent electrode ring from relative sliding in the transportation process, leads to electrode ring to move out the protection of outer tube, occurs irreversible change, leads to electrode ring to appear damage, effectively protects the equipment.

[0018] 2、The utility model discloses a fixed assembly and electrode ring are set up, make after the polypus of patient is removed, can make the polypus adhere on the electrode ring, the fixed assembly is set up, make the electrode ring fixed, prevent the relative sliding of the mistake touch and lead to, the convenient subsequent clamping is taken, and the patient is avoided accidentally hurt simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the overall structure schematic diagram of disposable electric loop snare that the utility model proposes;

[0020] Figure 2 It is the first part structure schematic diagram in the utility model;

[0021] Figure 3 It is the second part structure schematic diagram in the utility model;

[0022] Figure 4 It is the third part structure schematic diagram in the utility model;

[0023] Figure 5 It is Figure 3 It is the structure enlarged diagram of A place in the utility model;

[0024] Figure 6 It is Figure 3 It is the structure enlarged diagram of B place in the utility model.

[0025] In the drawing: 1, outer tube;2, electrode ring;3, limit block;4, fixed column;5, fixed handle;6, sliding handle;7, sliding slot;8, insulating tube;9, electrode column;10, screw;11, fixed hole;12, rotating block;13, fixed cylinder;14, sliding hole;15, fixed peg;16, spring. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0027] Embodiment one

[0028] As Figures 1-6As shown, the utility model provides a disposable electric loop snare, including electrode loop 2, sliding handle 6 and fixed handle 5, the one side fixed connection of sliding handle 6 near electrode loop 2 has insulating tube 8, the inboard fixed connection of insulating tube 8 has electrode post 9, and electrode post 9 is fixedly connected between electrode loop 2, and fixed handle 5 and sliding handle 6 are movably connected between, and the one end fixed connection of fixed handle 5 near electrode loop 2 has outer tube 1, and outer tube 1 is slidably connected between insulating tube 8, and fixed handle 5 is provided with the fixed assembly for sliding handle 6, and the fixed assembly includes rotating block 12 and fixed peg 15;

[0029] The one end of outer tube 1 near electrode loop 2 is provided with screw thread 10;

[0030] The outside of fixed handle 5 is provided with sliding slot 7, and sliding slot 7 penetrates fixed handle 5, and sliding slot 7 is slidably connected between sliding handle 6, and insulating tube 8 is slidably connected between fixed handle 5;

[0031] The one side of fixed handle 5 near rotating block 12 is provided with fixed hole 11, and the opening size of fixed hole 11 is adapted to the size of fixed peg 15.

[0032] In the embodiment, first, before the use of the device, the rotating block 12 is broken upwards, so that the rotating block 12 is in the vertical position, and the rotating block 12 is designed to be longitudinally narrow and transversely wide, so that the rotation of the rotating block 12 drives the fixed column 4 to move upwards, the upward movement of the fixed column 4 drives the fixed peg 15 to slide upwards in the inner side of the fixed cylinder 13, and the compression spring 16 is compressed, until the vertical surface of the rotating block 12 is attached to the top surface of the fixed cylinder 13, at this time, the fixed peg 15 is retracted into the inner side of 13, and the fixed peg 15 is in a temporary fixed state, which is convenient for subsequent use.

[0033] Embodiment two

[0034] As Figures 1-6 shown, based on the basis of embodiment one, the side of fixed handle 5 is provided with sliding hole 14, and the one side of fixed handle 5 near sliding hole 14 is fixedly connected with fixed cylinder 13, and the fixed cylinder 13 is in the same axial position with sliding hole 14;

[0035] The fixed peg 15 is slidably connected between the fixed cylinder 13 and the sliding hole 14 respectively;

[0036] The inner side of fixed cylinder 13 is fixedly connected with limiting block 3, and the spring 16 is fixedly connected between the two limiting blocks 3 and the fixed peg 15;

[0037] The one end of fixed peg 15 away from fixed handle 5 is fixedly connected with fixed column 4, and the fixed column 4 is rotatably connected between the rotating block 12, and the rotating block 12 is in contact with the fixed cylinder 13.

[0038] In the embodiment, after the above process is completed, when the medical staff removes the polyp of the patient, first, slide the sliding handle 6, the movement of the sliding handle 6 drives the electrode column 9 and the insulating tube 8 to slide together inside the outer tube 1 until the electrode ring 2 is completely moved out of the outside of the outer tube 1, then the polyp of the patient is sleeved by the electrode ring 2, then the electrode column 9 is electrified, the sliding handle 6 is slid downward, the sliding of the sliding handle 6 makes the electrode ring 2 tighten, at this time, the polyp of the patient is removed, because the electrode ring 2 is designed as a rough surface burr design, the polyp can be attached to the electrode ring 2, then the rotating block 12 is pulled downward, so that the rotating block 12 is in a horizontal position, at this time, the spring 16 rebounds, and the sliding of the sliding handle 6 drives the sliding of the fixed hole 11, until the fixed hole 11 slides to the same axial position of the fixed pin 15, under the action of the spring 16, the fixed pin 15 is clamped into the inside of the fixed hole 11, and the electrode ring 2 is fixed, the above process, through the setting of the fixing assembly and the electrode ring 2, after the polyp of the patient is removed, the polyp can be attached to the electrode ring 2, through the setting of the fixing assembly, the electrode ring 2 is fixed, the relative sliding caused by accidental touch is prevented, the subsequent clamping is facilitated, and the patient is prevented from being accidentally injured.

[0039] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A single-use electrical loop snare comprising an electrode loop (2), a sliding handle (6) and a fixed handle (5), characterized in that, The sliding handle (6) is fixedly connected with an insulating tube (8) near one side of the electrode ring (2), the inner side of the insulating tube (8) is fixedly connected with an electrode column (9), the electrode column (9) is fixedly connected with the electrode ring (2), the fixed handle (5) and the sliding handle (6) are movably connected, the fixed handle (5) is fixedly connected with an outer tube (1) near one end of the electrode ring (2), the outer tube (1) is movably connected with the insulating tube (8), the fixed handle (5) is provided with a fixing assembly for the sliding handle (6), and the fixing assembly comprises a rotating block (12) and a fixing bolt (15).

2. The single-use electrical loop snare of claim 1, wherein, The outer tube (1) is provided with a thread (10) near one end of the electrode ring (2).

3. The single-use electrical loop snare of claim 1, wherein, The outer side of the fixed handle (5) is provided with a sliding groove (7), the sliding groove (7) penetrates through the fixed handle (5), and the sliding groove (7) is movably connected with the sliding handle (6).

4. The single-use electrical loop snare of claim 1, wherein, The fixed handle (5) is provided with a fixing hole (11) near one side of the rotating block (12), and the opening size of the fixing hole (11) is matched with the size of the fixing bolt (15).

5. The single-use electrical loop snare of claim 1, wherein, The side surface of the fixed handle (5) is provided with a sliding hole (14), and the fixed handle (5) is fixedly connected with a fixing cylinder (13) near one side of the sliding hole (14).

6. The single-use electrical loop snare of claim 1, wherein, The fixing bolt (15) is movably connected with the fixing cylinder (13) and the sliding hole (14) respectively.

7. The single-use electrical loop snare according to claim 6, wherein, The inner side of the fixing cylinder (13) is fixedly connected with a limiting block (3) in a symmetrical mode, and the two limiting blocks (3) and the fixing bolt (15) are fixedly connected with a spring (16) together.

8. The single-use electrical loop snare of claim 1, wherein, The fixing bolt (15) is fixedly connected with a fixing column (4) away from the fixed handle (5), the fixing column (4) is rotatably connected with the rotating block (12), and the rotating block (12) is in contact with the fixing cylinder (13).

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