Electric snare
By designing an electrical snail that integrates a snail and a mucosal incision surgery, the problem of inability to effectively remove ≥2cm pedicle-free polyps and poor coagulation effects in the prior art was solved, and efficient resection and coagulation effects were improved.
Patent Information
- Application Number
- CN202421655764.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-15
AI Technical Summary
The existing electrical snails cannot be effectively removed when dealing with pedicle-free polyps of ≥2cm, and the coagulation effect is not ideal, resulting in high surgical cost and low efficiency.
An electrical snail was designed, and a cable and tee joint were installed in the sheath tube, which integrates the snail and mucosal incision surgery, and a coagulant was injected through the coagulant injection tube to improve the coagulation effect.
Efficient resection of pedicle-free polyps ≥2cm was achieved, reducing surgical costs, improving surgical efficiency, and ensuring the coagulation effect by injecting coagulant.
Smart Images
Figure CN222899291U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of surgical instruments, in particular to an electric snare. Background Art
[0002] A snare is an instrument that uses a nylon rod to tighten a slip knot pre-tied with an absorbable thread or synthetic thread to ligate blood vessels, polyps or other duct structures. It is convenient to operate and has been applied to various laparoscopic abdominal surgeries. The electric snare is used in conjunction with an endoscope to remove polyps or other redundant tissues in the digestive tract. It is used to remove early benign and malignant lesions of the stomach and intestines, generally applicable to benign lesions and earlier malignant lesions of the esophagus, stomach, and colon. It is mainly suitable for single or multiple polyps in the upper digestive tract with a sub-pedicle or a pedicle, but an electric snare is not applicable to remove sessile polyps ≥2 cm in size; it can also be used to retrieve foreign bodies in the respiratory tract.
[0003] For sessile polyps ≥2 cm in size, the current surgical method is to first use a mucosal cutting knife for resection and then use a snare to remove it. This method has a higher cost as it requires unpacking and using two sets of equipment. In addition, although the electric snare has excellent blood coagulation effect, it still cannot guarantee a 100% blood coagulation effect.
[0004] Therefore, this application designs an electric snare to solve the above problems. Content of the Utility Model
[0005] The utility model provides an electric snare to make up for the deficiencies in the prior art.
[0006] An electric snare, including a sheath tube, is characterized in that:
[0007] A cable connecting the snare is arranged inside the sheath tube. One end of the sheath tube is communicated with a three-way joint. One joint of the three-way joint is connected to a core rod. A sliding ring connecting the cable is arranged on the core rod. The position of the sliding ring is adjusted to drive the snare in and out of the sheath tube.
[0008] Further, to better implement the utility model, the original tip position of the snare is set as a mucosal cutting knife.
[0009] Further, to better implement the utility model, a coagulant injection tube passes through one of the joints of the three-way joint, and one end of the coagulant injection tube extends into the sheath tube but does not protrude from the sheath tube.
[0010] Further, to better implement the utility model, scale marking lines are arranged on the core rod. After the sliding ring is pushed to the scale marking lines, the mucosal cutting knife exposes out of the sheath tube, and the main body of the snare remains hidden inside the sheath tube.
[0011] The beneficial effects of the utility model are:
[0012] The utility model integrates a snare and a mucosal incision knife into one device, which can reduce costs and improve surgical efficiency. When the blood coagulation effect is not good during the operation, the coagulant can also be injected through the three-way joint and dripped from the sheath tube to the incision site. Brief Description of the Drawings
[0013] Figure 1 is a schematic three-dimensional structure diagram of the utility model;
[0014] Figure 2 is a schematic structural diagram of the snare part of the utility model;
[0015] Figure 3 is a schematic diagram of the exposed part of the snare when the slip ring of the utility model moves to the scale marking line;
[0016] Figure 4 is a schematic structural diagram of the existing electric snare.
[0017] In the figure,
[0018] 1. Sheath tube, 2. Snare, 3. Three-way joint, 4. Core rod, 5. Slip ring, 6. Scale marking line, 7. Coagulant injection tube, 201. Mucosal incision knife. Detailed Description of the Preferred Embodiments
[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Usually, the components of the embodiments of the present utility model described and illustrated herein can be arranged and designed in various different configurations.
[0020] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present utility model.
[0021] Figures 1 - 3This is a specific embodiment of the present utility model, which is an electric snare. A cable connecting the snare 2 is arranged inside the sheath 1. One end of the sheath 1 is communicated with a three-way joint 3. One joint of the three-way joint 3 is connected to a core rod 4. A sliding ring 5 for connecting the cable is arranged on the core rod 4. The position of the sliding ring 5 is adjusted to drive the snare in and out of the sheath 1. The original tip position of the snare 2 is set as a mucosal incision knife 201. One of the joints of the three-way joint 3 is penetrated by a coagulant injection tube 7. One end of the coagulant injection tube 7 extends into the sheath 1 but does not protrude from the sheath 1. A scale marking line 6 is arranged on the core rod 4. When the sliding ring 5 is pushed to the scale marking line 6, the mucosal incision knife 201 protrudes from the sheath 1, and the main body of the snare 2 remains hidden in the sheath 1.
[0022] When this embodiment is in use, the sliding ring 5 is pushed to the scale marking line 6, and the state where the mucosal incision knife 201 protrudes is as Figure 3 shown. At this time, the polyp can be cut by energization. After the cutting is completed, the sliding ring 5 is pushed forward again to expose the entire snare 2, and the next snaring operation can be carried out. When the situation of unable to coagulate blood occurs, coagulant is injected into the coagulant injection tube 7, and the coagulant drips from the end of the sheath 1 to the position where blood coagulation is required.
[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not restrictive. Other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present utility model shall be covered by the scope of the claims of the present utility model as long as they do not depart from the spirit and scope of the technical solutions of the present utility model.
Claims
1. An electric snare, comprising a sheath tube (1), characterized in that: A cable connected to the snare (2) is arranged inside the sheath tube (1); one end of the sheath tube (1) is connected to a three-way joint (3); one joint of the three-way joint (3) is connected to a core rod (4); a slip ring (5) connected to the cable is arranged on the core rod (4); and the snare is driven in and out of the sheath tube (1) by adjusting the position of the slip ring (5).
2. The electric snare according to claim 1, characterized in that: The original tip position of the snare (2) is set as a mucosal cutter (201).
3. The electric snare according to claim 1, characterized in that: A coagulant injection tube (7) is passed through one of the three-way connectors (3), and one end of the coagulant injection tube (7) extends into the sheath tube (1) but does not protrude from the sheath tube (1).
4. The electric snare according to claim 1, characterized in that: The core rod (4) is provided with a scale mark line (6). When the slip ring (5) is pushed onto the scale mark line (6), the mucosal cutter (201) is exposed from the sheath tube (1), and the main body of the snare (2) is still hidden in the sheath tube (1).