Endoscopic cold snare

Abstract

The utility model relates to medical instrument technical field, concretely is a cold cut snare under endoscope, and its technical scheme main point is, including cold cut snare body, the outer end of cold cut snare body is connected with connecting mechanism, the inner end sliding connection of connecting mechanism has auxiliary mechanism, the auxiliary mechanism includes anti -drop ring, the inner end of connecting mechanism is swinged connected in anti -drop ring, the outer end of anti -drop ring is established with anti -drop groove, the rear end of anti -drop ring all is installed with movable rod, through setting up a plurality of anti -drop ring can form the limiting structure in the inside of connecting mechanism, and movable rod can be convenient to produce position movement to be positioned in the operator hand outer end with the anti -drop ring can adjust to suitable position, let this cold cut snare operator hand be more stable in the operation process, and can make operator be more handy in the force and operation, reduce the uncertainty of operation, reduce the difficulty of operation, improved the stability of this cold cut snare operation use.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an endoscopic cold cutting snare. Background Technology

[0002] The endoscopic cold cut snare is an instrument used in endoscopic surgery to mechanically cut diseased tissue without thermal damage. The cold cut snare mainly cuts diseased tissue such as polyps and early tumors directly through mechanical force. It is one of the commonly used instruments in gastrointestinal polyp removal, early tumor removal and other surgeries.

[0003] Existing endoscopic cold cutting snares have certain drawbacks. First, the operation of the endoscopic cold cutting snare is crucial, but the existing snares lack limiting structures at the lifting or force application points. This increases the uncertainty of snare operation, the possibility of dislodgement, the difficulty of the surgery, and the effort required to operate the snare. Therefore, we propose an endoscopic cold cutting snare. Utility Model Content

[0004] The purpose of this utility model is to solve the technical problems mentioned in the background art.

[0005] This utility model adopts the following technical solution: an endoscopic cold cutting snare, including a cold cutting snare body, a connecting mechanism connected to the outer end of the cold cutting snare body, an auxiliary mechanism slidably connected to the inner end of the connecting mechanism, the auxiliary mechanism including an anti-dislodgement ring, the anti-dislodgement ring being movably connected to the inner end of the connecting mechanism, an anti-dislodgement groove being provided on the outer end of the anti-dislodgement ring, and a movable rod being installed at the rear end of each anti-dislodgement ring, with a reset ring sleeved on the outer end of each movable rod. By installing the anti-dislodgement ring and the movable rod, the difficulty of the surgery can be reduced and the stability of the cold cutting snare in operation can be improved.

[0006] Preferably, a guide ring is movably connected to the outer side of the reset ring, and the guide ring is located at the outer end of the movable rod. By installing the reset ring, the adjustment effect of the auxiliary mechanism can be further improved.

[0007] Preferably, the outer end of the guide ring is provided with an adjustment groove, the rear end of the adjustment groove is provided with a connecting groove, and the inner end of the connecting groove is slidably connected to a limit head. The limit head is located at the outer end of the movable rod. By installing the adjustment groove and the connecting groove, the adjustment and anti-slip effect of the anti-slip ring can be further improved.

[0008] Preferably, the cold-cutting ring body includes a fixing tube, a pull ring is installed at the outer end of the fixing tube, a connecting handle is slidably connected to the front side of the fixing tube, and a connecting sleeve is installed in the middle of the connecting handle. By installing the connecting sleeve, the metal wire can be operated more stably and adjusted more conveniently.

[0009] Preferably, the bottom end of the connecting sleeve is connected to a metal wire, the outer end of the metal wire is slidably connected to a connecting pipe, the inner end of the connecting pipe is fitted with a second pipe, and the front side of the second pipe is movably connected to a metal ring sleeve. By installing the second pipe, the large displacement of the metal wire can be reduced, making the structure easier to operate.

[0010] Preferably, both ends of the connecting handle are equipped with ring handles. By installing ring handles, the ring handles can form a connecting structure on the outside of the gripping part, so that the connection between the gripping part and the connecting mechanism is stable.

[0011] Preferably, the outer end of the ring handle is provided with a gripping part, and the outer end of the gripping part is provided with an operating groove. By installing the operating groove, the cold-cutting ring can be easily operated and used.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] In summary, this utility model has the following beneficial effects:

[0014] 1. In this utility model, by setting anti-dislodgement rings and movable rods, multiple anti-dislodgement rings can form a limiting structure inside the connecting mechanism. When the anti-dislodgement rings are in use, the movable rod, in conjunction with the force of the reset ring, can easily move in position, thereby allowing the anti-dislodgement rings to be adjusted to a suitable position on the outside of the operator's hand. This makes the operator's hand more stable during operation, and allows the operator to apply force and operate more easily, reducing operational uncertainty, lowering the difficulty of the surgery, and improving the stability of the operation of the cold cutting snare.

[0015] 2. In this utility model, by setting a reset ring, which is an elastic structure, the reset ring can be adjusted simultaneously with the movement of the movable rod and the anti-detachment ring. When the movable rod and the anti-detachment ring lose external force, the movable rod will reset the anti-detachment ring, allowing the anti-detachment ring to be easily adjusted according to the specifications of the hand structure, further improving the adjustment effect of the auxiliary mechanism. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of an endoscopic cold-cutting snare device proposed in this utility model;

[0017] Figure 2 A schematic diagram of the cross-section of the connecting pipe is provided for this utility model;

[0018] Figure 3 A three-dimensional schematic diagram of the auxiliary mechanism is provided for this utility model;

[0019] Figure 4 This is a schematic diagram of the top view of the ring handle of this utility model.

[0020] Legend:

[0021] 1. Cold-cutting ring cutter body; 101. Fixing tube; 102. Pull ring one; 103. Connecting handle; 104. Connecting sleeve; 105. Metal wire; 106. Connecting tube; 107. Pipe two; 108. Metal ring cutting sleeve; 2. Connecting mechanism; 201. Ring handle; 202. Grip part; 203. Operating groove; 3. Auxiliary mechanism; 301. Anti-disengagement ring; 302. Anti-disengagement groove; 303. Movable rod; 304. Reset ring; 305. Guide ring; 306. Adjustment groove; 307. Connecting groove; 308. Limiting head. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1

[0025] Please see Figure 1-4 This utility model provides a technical solution: an endoscopic cold cutting snare, including a cold cutting snare body 1, a connecting mechanism 2 connected to the outer end of the cold cutting snare body 1, an auxiliary mechanism 3 slidably connected to the inner end of the connecting mechanism 2, the auxiliary mechanism 3 including an anti-detachment ring 301, the anti-detachment ring 301 being movably connected to the inner end of the connecting mechanism 2, an anti-detachment groove 302 being provided on the outer end of the anti-detachment ring 301, and a movable rod 303 being installed on the rear end of each anti-detachment ring 301, with a reset ring 304 sleeved on the outer end of the movable rod 303.

[0026] Please see Figure 3-4 A guide ring 305 is movably connected to the outer side of the reset ring 304, and the guide ring 305 is located at the outer end of the movable rod 303.

[0027] Please see Figure 4 An adjustment groove 306 is provided at the outer end of the guide ring 305, and a connecting groove 307 is provided at the rear end of the adjustment groove 306. A limit head 308 is slidably connected to the inner end of the connecting groove 307, and the limit head 308 is located at the outer end of the movable rod 303.

[0028] In this embodiment, multiple anti-detachment rings 301 can form a limiting structure inside the connecting mechanism 2. When the anti-detachment rings 301 are in use, the movable rod 303, in conjunction with the force of the reset ring 304, can easily move in position. The reset ring 304 is an elastic structure, and it can be adjusted simultaneously with the movement of the movable rod 303 and the anti-detachment rings 301. When the movable rod 303 and the anti-detachment rings 301 lose external force, the movable rod 303 resets the anti-detachment rings 301, allowing the anti-detachment rings 301 to adjust according to the hand structure. The specifications can be easily adjusted. The adjustment groove 306 and the connecting groove 307 can restrict the guide ring 305 and the limiting head 308 that move together with the movable rod 303, so that the guide ring 305 and the limiting head 308 are prevented from shifting and falling off during adjustment. This allows the anti-slip ring 301 to be adjusted to a suitable position and positioned at the outside of the operator's hand, making the operator's hand more stable during operation. It also makes the operator more comfortable in applying force and operation, reducing the uncertainty of operation and reducing the difficulty of surgery.

[0029] Example 2

[0030] Please see Figure 1-2 The present invention provides a technical solution: the cold cutting ring body 1 includes a fixing tube 101, a pull ring 102 is installed at the outer end of the fixing tube 101, a connecting handle 103 is slidably connected to the front side of the fixing tube 101, and a connecting sleeve 104 is installed in the middle of the connecting handle 103.

[0031] Please see Figure 1-2 The bottom end of the connecting sleeve 104 is connected to a metal wire 105, the outer end of the metal wire 105 is slidably connected to a connecting pipe 106, the inner end of the connecting pipe 106 is fitted with a pipe 2 107, and the front side of the pipe 2 107 is movably connected to a metal ring sleeve 108.

[0032] In this embodiment, the metal wire 105 passes through the lower end of the fixed tube 101 and the upper end of the connecting handle 103 and is connected to the connecting sleeve 104. The connecting sleeve 104 connects one end of the metal wire 105, making the operation of the metal wire 105 more stable and convenient for adjustment. The structure of the second pipe 107 allows the metal wire 105 to move more smoothly during operation, reduces the displacement of the metal wire 105, and improves the operating effect of the cold cutting ring.

[0033] Example 3

[0034] Please see Figure 1 This utility model provides a technical solution: both ends of the connecting handle 103 are equipped with ring handles 201.

[0035] Please see Figure 1 The outer end of the ring handle 201 is equipped with a gripping part 202, and the outer end of the gripping part 202 is provided with an operating groove 203.

[0036] In this embodiment, the operating groove 203 allows the gripping part 202 to also be easily grasped, enabling the operator to have multiple gripping operation structures, making the cold-cutting snare easy to operate and use.

[0037] Working principle: When using this device, the operator's hand is positioned inside the gripping part 202. Multiple anti-detachment rings 301 form a limiting structure inside the connecting mechanism 2. When the anti-detachment rings 301 are in use, the movable rod 303, in conjunction with the return ring 304, can easily move in position. The return ring 304 is an elastic structure and can be adjusted simultaneously with the movement of the movable rod 303 and the anti-detachment rings 301. When the movable rod 303 and the anti-detachment rings 301 lose external force, the movable rod 303 resets the anti-detachment rings 301. The anti-detachment ring 301 can be easily adjusted according to the specifications of the hand structure, so that the anti-detachment ring 301 can be adjusted to a suitable position on the outside of the operator's hand. This makes the operator's hand more stable during operation, and makes the operator more comfortable in applying force and operation, reducing the uncertainty of operation and reducing the difficulty of surgery. Then, by adjusting the angle through the pull ring 102 and the connecting handle 103, the metal wire 105 is pulled by operation, so that the metal ring cutting sleeve 108 is located outside the polyp, and the cutting work can be carried out.

[0038] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. An endoscopic cold-cutting snare, comprising a cold-cutting snare body (1), characterized in that: The outer end of the cold-cutting ring body (1) is connected to a connecting mechanism (2), and the inner end of the connecting mechanism (2) is slidably connected to an auxiliary mechanism (3). The auxiliary mechanism (3) includes an anti-detachment ring (301), which is movably connected to the inner end of the connecting mechanism (2). The outer end of the anti-detachment ring (301) is provided with an anti-detachment groove (302), and the rear end of the anti-detachment ring (301) is equipped with a movable rod (303). The outer end of the movable rod (303) is fitted with a reset ring (304).

2. The endoscopic cold-cutting snare according to claim 1, characterized in that: A guide ring (305) is movably connected to the outside of the reset ring (304), and the guide ring (305) is located at the outer end of the movable rod (303).

3. The endoscopic cold-cutting snare according to claim 2, characterized in that: The guide ring (305) has an adjustment groove (306) at its outer end, and a connecting groove (307) is provided at its rear end. A limit head (308) is slidably connected to the inner end of the connecting groove (307), and the limit head (308) is located at the outer end of the movable rod (303).

4. The endoscopic cold-cutting snare according to claim 1, characterized in that: The cold-cutting ring body (1) includes a fixing tube (101), a pull ring (102) is installed at the outer end of the fixing tube (101), a connecting handle (103) is slidably connected to the front side of the fixing tube (101), and a connecting sleeve (104) is installed in the middle of the connecting handle (103).

5. An endoscopic cold-cutting snare according to claim 4, characterized in that: The bottom end of the connecting sleeve (104) is connected to a metal wire (105), the outer end of the metal wire (105) is slidably connected to a connecting pipe (106), the inner end of the connecting pipe (106) is fitted with a pipe second (107), and the front side of the pipe second (107) is movably connected to a metal ring sleeve (108).

6. An endoscopic cold-cutting snare according to claim 4, characterized in that: Both ends of the connecting handle (103) are equipped with ring handles (201).

7. An endoscopic cold-cutting snare according to claim 6, characterized in that: The outer end of the ring handle (201) is equipped with a gripping part (202), and the outer end of the gripping part (202) is provided with an operating groove (203).

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