Bipolar electrotome for soft tissue coagulation cutting operation
By designing a bipolar electric knife, tissue clamping, radio frequency ablation and blunt separation are achieved using different clamping forces, the problems of long current path, smoke heat influence and operation difficulty of existing hemorrhoid surgical instruments are solved, and simple and efficient tissue cutting and hemostasis effects are achieved.
Patent Information
- Application Number
- CN202422128040.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-08-30
AI Technical Summary
Existing hemorrhoid surgical instruments have problems such as long current paths, potential impact on other parts of the body, smoke and heat affect the visual field, lack of effective hemostasis function, and difficulty in operation.
A bipolar electric knife is designed to achieve tissue clamping, radio frequency ablation and blunt separation through different clamping forces of dynamic and static toughness. It is equipped with an insulated handle and trigger switch, dynamic and static toughness hinge, conical blade and angle design to enhance operation flexibility.
It realizes simple and efficient tissue cutting and hemostasis, improves the surgical vision and operating space, and improves the flexibility and safety of the surgery.
Smart Images
Figure CN223183606U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a bipolar electric knife used for soft tissue coagulation and cutting surgery, belonging to the field of surgical instruments. Background Art
[0002] Hemorrhoids are a common and frequently occurring anorectal disease, and surgical treatment has always been the mainstay of clinical treatment. However, current surgical instruments present numerous problems in hemorrhoid surgery. Common monopolar high-frequency electrosurgeries require the use of a grounded electrode plate, and the current must pass through the entire body, increasing the length of the current path and potentially impacting other parts of the body. Furthermore, monopolar high-frequency electrosurgeries generate a large amount of smoke and heat during surgery, severely impacting the local surgical field of view of the anus. While ordinary scissors or scalpels perform well in cutting, they lack effective hemostasis, a significant drawback in surgeries requiring rapid hemostasis. While ultrasonic scalpels possess both cutting and hemostasis functions, they are primarily designed for tissue separation and vascular ligation of major organs within the abdominal cavity. They are difficult to operate and lack flexibility when performing precise hemostasis surgery in narrow, circular areas within the anal canal.
[0003] In response to the above problems, a bipolar mixed hemorrhoid electrosurgical unit was designed, which has small damage surface, separation, hemostasis and cutting functions, and is flexible to operate. Summary of the Invention
[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the existing technology and provide a bipolar electric knife for soft tissue coagulation and cutting surgery, which can achieve tissue clamping, radiofrequency ablation and blunt separation through different clamping forces, and is simple and convenient to operate.
[0005] The bipolar electric knife used for mixed hemorrhoid surgery described in the utility model includes a dynamic tendon and a static tendon. The rear ends of the dynamic tendon and the static tendon are both provided with insulating handles, and the middle part of the dynamic tendon is hinged to the middle part of the static tendon; the insulating handle of the static tendon is provided with a trigger switch for controlling the power-on status of the dynamic tendon and the static tendon. Holding the insulating handle and squeezing the trigger switch can achieve ablation cutting.
[0006] Preferably, the trigger switch is a hollow rubber sphere, in which an upper switch contact, a middle switch contact and a lower switch contact are provided. Electrode sheets are provided on the upper switch contact and the middle switch contact. Radiofrequency ablation can be achieved by holding the insulating handle and squeezing the upper switch contact and the middle switch contact.
[0007] Preferably, the dynamic pliers are designed in an arch shape, and the static pliers are designed in a straight line shape, which can achieve a larger opening and closing angle and facilitate operation on the rectal wall.
[0008] Preferably, the dynamically tough and statically tough tips are provided with tapered cutting edges.
[0009] Preferably, the blade portion is provided with two corners to improve the surgical field of view and operating space.
[0010] Preferably, the insulating handle is made of synthetic resin material, and a power cord is provided at the tail of the static and tough insulating handle.
[0011] Compared with the prior art, the beneficial effects of the present invention are:
[0012] (1) The utility model can achieve tissue clamping, radiofrequency ablation and blunt separation through dynamic toughness, static toughness and trigger switch, and different clamping forces, and the operation is simple and convenient;
[0013] (2) The blade is equipped with two 45-degree corners, making it easier for the doctor to see and access the surgical site during operation, improving the surgical field of view and operating space;
[0014] (3) The dynamic and static joints are hinged, and a larger opening and closing angle can be achieved by operating the insulating handle, which is convenient for operation on the rectal wall. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a structural diagram of an embodiment of the present invention.
[0016] Figure 2 This is a schematic diagram of the structure of the dynamic toughness and static toughness corner.
[0017] Figure 3 It is a schematic diagram of the trigger switch structure.
[0018] In the figure: 1. Dynamic toughness; 2. Static toughness; 3. Insulated handle; 4. Trigger switch; 5. Blade;
[0019] 41. Upper switch contact; 42. Middle switch contact; 43. Lower switch contact. DETAILED DESCRIPTION
[0020] Example 1
[0021] like Figure 1-Figure 3 As shown, the bipolar electrosurgical unit for soft tissue coagulation and cutting surgery described in the present invention includes a dynamic member 1 and a static member 2, the middle portion of the dynamic member 1 being hingedly connected to the middle portion of the static member 2. The rear ends of the dynamic member 1 and the static member 2 are each provided with an insulating handle 3, each provided with a finger ring for easy gripping.
[0022] The dynamic handle 1 is designed in an arched shape, while the static handle 2 is designed in a straight line, allowing for a wide opening and closing angle. The tips of the dynamic handles 1 and 2 are bolted to a tapered blade 5, with a slightly sharper inner edge. The blade 5 platform has two corners, improving the surgical field of view and operating space. The dynamic handles 1 and 2 are made of a highly conductive alloy, while the insulating handle 3 is made of a synthetic resin. A power cord is located at the end of the insulating handle 3 of the static handle 2 to power the dynamic handles 1 and 2.
[0023] The insulated handle 3 of the static manipulator 2 is terminated with a trigger switch 4, a hollow rubber sphere containing an upper switch contact 41, a middle switch contact 42, and a lower switch contact 43. Each of the upper and middle switch contacts 41 and 42 is equipped with electrodes. Gripping the two insulated handles 3, so that the insulated handle 3 of the dynamic manipulator 1 contacts the upper switch contact 41, clamps the tissue. Squeezing the insulated handles 3 firmly, so that the upper switch contact 41 contacts the middle switch contact 42, initiates radiofrequency ablation. Further pressure, so that the upper switch contact 41 contacts the lower switch contact 43, allows blunt cutting and separation of degenerated tissue.
[0024] Working process or working principle:
[0025] When mixed hemorrhoid surgery is required, the doctor uses forceps to clamp a corner of the external hemorrhoid with one hand to form tension against the anal margin, and uses the bipolar electric knife of the present invention to clamp the target part, that is, the base of the hemorrhoid. First, pressure is applied to the insulating handles 3 on both sides so that the insulating handles 3 of the movable handle 1 contact the upper switch contact 41 to achieve tissue clamping; then pressure is applied so that the upper switch contact 41 contacts the middle switch contact 42, and the blade 5 discharges to perform radiofrequency ablation on the tissue; after the target tissue is dehydrated and shrunk, pressure is applied again so that the upper switch contact 41 contacts the lower switch contact 43, and the blade 5 bluntly cuts the tissue, completing one tissue cutting. Adjust the position of the bipolar electric knife and perform the next cycle of tissue cutting until all target hemorrhoid tissue is removed.
[0026] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up and down, does not constitute a limitation of the present invention and is only for the convenience of description.
Claims
1. A bipolar electrosurgical unit for soft tissue coagulation and cutting surgery, characterized in that: The invention comprises a dynamic toughness (1) and a static toughness (2), wherein the rear ends of the dynamic toughness and the static toughness are both provided with an insulating handle (3), and the middle part of the dynamic toughness is hinged to the middle part of the static toughness; the insulating handle of the static toughness is provided with a trigger switch (4) for controlling the power-on state of the dynamic toughness and the static toughness, and ablation cutting can be achieved by holding the insulating handle and squeezing the trigger switch (4).
2. The bipolar electric knife for soft tissue coagulation and cutting surgery according to claim 1, characterized in that: The trigger switch (4) is a hollow rubber sphere, in which an upper switch contact (41), a middle switch contact (42) and a lower switch contact (43) are arranged, and electrode sheets are arranged on the upper switch contact (41) and the middle switch contact (42).
3. The bipolar electric knife for soft tissue coagulation and cutting surgery according to claim 2, characterized in that: The dynamic flexure (1) is designed in a bow shape, and the static flexure (2) is designed in a straight line shape.
4. The bipolar electric knife for soft tissue coagulation and cutting surgery according to claim 3, characterized in that: The tips of the dynamic toughness (1) and the static toughness (2) are provided with tapered blades (5).
5. The bipolar electric knife for soft tissue coagulation and cutting surgery according to claim 4, characterized in that: The blade portion is provided with two corners.
6. The bipolar electric knife for soft tissue coagulation and cutting surgery according to claim 1, characterized in that: The insulating handle (3) is made of synthetic resin material, and a power cord is provided at the tail of the insulating handle (3) of the static toughness (2).