Hemostatic ablation forceps
By designing an adjustable-angle hemostasis and ablation forceps, the problem of the non-adjustable electrode angle of traditional hemostasis and ablation forceps is solved, achieving precise hemostasis and ablation effects and improving the flexibility and convenience of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING HUATENG INNOVATION TECH CO LTD
- Filing Date
- 2025-02-27
- Publication Date
- 2026-08-04
AI Technical Summary
The electrode angle of traditional hemostatic ablation forceps is not adjustable, making it difficult to adjust flexibly according to specific surgical conditions, which increases the difficulty of operation and makes it impossible to achieve precise hemostasis and ablation effects.
A hemostasis and ablation forceps was designed. By using a hinged slide bar and a moving electrode, the angle between the fixed and moving electrodes can be adjusted. Combined with a spring structure, the electrode angle can be flexibly adjusted. The electrodes are powered by electrical wires to achieve precise hemostasis and ablation.
It enables flexible adjustment of the contact angle and range between the electrode and the tissue according to different surgical needs, improving the accuracy and convenience of hemostasis and ablation.
Smart Images
Figure CN224584842U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of surgical medical device technology, specifically to hemostatic ablation forceps. Background Technology
[0002] In surgical procedures, hemostasis and tissue ablation are crucial operational steps, directly impacting the success of the surgery and the patient's prognosis. Hemostatic ablation forceps, as key instruments for achieving this purpose, are widely used in clinical practice. Traditional hemostatic ablation forceps typically consist of electrodes, a forceps body, and an operating handle. The electrodes are connected to a power source via electrical leads, utilizing the thermal effect generated by electrical energy to achieve hemostasis and ablation of tissue. However, existing hemostatic ablation forceps have some shortcomings in practical use.
[0003] On the one hand, the human body has a complex and diverse physiological structure, and the space and tissue morphology of surgical sites vary. Lesions are often hidden and have limited space, making it difficult for electrodes with fixed angles to accurately reach the lesion site, thus increasing the difficulty of the operation. On the other hand, different surgical needs require different ranges and degrees of hemostasis and ablation. Sometimes it is necessary to ablate and stop bleeding over a large area of tissue, while other times it is necessary to precisely treat tiny bleeding points. However, the electrode angle of traditional hemostasis and ablation forceps is not adjustable, making it difficult to flexibly adjust the contact angle and range between the electrode and the tissue according to the specific surgical situation, thus failing to achieve precise hemostasis and ablation effects.
[0004] Therefore, hemostatic and ablation forceps are required, with an adjustable angle between the moving and fixed electrodes, which can effectively achieve precise hemostasis and ablation effects. Utility Model Content
[0005] The purpose of this invention is to provide a hemostatic ablation forceps to address the shortcomings of existing technologies.
[0006] Hemostatic ablation forceps, including:
[0007] The body is in the shape of a hollow cylindrical tube. A flat notch is opened at one end of the body, and a long slot is opened at the circumference of the other end of the body near the edge. A through hole is opened inside the body.
[0008] A push ring is fitted onto the body near the opening of the long slot. A limit pin is riveted to the push ring, and the limit pin slides into the long slot.
[0009] A slide rod is fitted inside the through hole of the main body. One end of the slide rod extends from the inside of the main body to the outside. The slide rod is riveted to the limit pin near the limit pin. The other end of the slide rod extends from the inside of the main body to the flat notch position and is hinged to the fixed pole and the moving pole. The fixed pole position remains stationary. The moving pole is hinged to the slide rod to adjust the angle between the fixed pole and the moving pole.
[0010] Furthermore, a hinge ring is provided at the position where the slide rod is hinged to the moving pole, and a fixing block is fixedly connected to one end of the fixed pole. The fixing block is cylindrical and is fitted into the flat notch. An adjustment groove is opened inside the fixing block. The end of the moving pole that extends into the adjustment groove is provided with a hinge ear. The hinge ear passes through the adjustment groove and extends into the flat notch to hinge with the hinge ring at the end of the slide rod.
[0011] Furthermore, a friction part is provided on the side wall of the push ring near the limiting pin. The friction part is elliptical in shape and conforms to the shape of a finger.
[0012] Furthermore, the surface of the friction part is provided with a plurality of protrusions, each of which is a component made of silicone material.
[0013] Furthermore, both the fixed electrode and the moving electrode are circular ring structures, and cylindrical electrofusion electrodes are provided on the sidewalls of the rings.
[0014] Furthermore, the cylindrical electrofusion electrode is bent, and the bending form includes left bend, right bend, left curve, and right curve.
[0015] Furthermore, the body is provided with electrical wires inside, one end of which extends to a flat notch and connects to the fixed pole and the moving pole, and the other end of which is arranged along the through hole inside the body and extends to the other end of the body to connect to the socket.
[0016] Furthermore, both the fixed electrode and the moving electrode are components made of medical-grade metal.
[0017] Furthermore, the body, the push ring, the limiting pin, and the slide rod are all components made of medical insulating material.
[0018] Furthermore, a spring is also provided inside the long slot. The spring is fitted outside the slide rod. One end of the spring is fixedly connected to the position where the limiting pin is inserted into the long slot and riveted to the slide rod. The other end of the spring is fixedly connected to the inner end face of the body.
[0019] The advantages of this utility model compared with the prior art are as follows:
[0020] 1. This solution uses a hinged sliding rod and a moving electrode. When the sliding rod slides in the through hole inside the body, it will drive the hinged moving electrode to rotate at a certain angle around the hinge point. Since the moving electrode and the fixed electrode are located at one place and the fixed electrode remains stationary, an angle is formed between the fixed electrode and the moving electrode. The angle between the fixed electrode and the moving electrode can be adjusted by moving the sliding rod back and forth, which is convenient for ablating blood clots and fleshy tissue of different sizes at the lesion site, and also facilitates hemostasis operation.
[0021] 2. This solution incorporates a spring. When the push ring is pushed during surgery to move the slide bar, it compresses the spring, which accumulates elastic potential energy. After the surgery is completed, simply releasing the push ring will cause the spring to push the push ring back to its original position, eliminating the need for manual reset and improving ease of use. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of the hemostatic ablation forceps proposed in this scheme;
[0023] Figure 2 This is an enlarged view of the structure of the hemostatic ablation forceps near the push ring proposed in this scheme;
[0024] Figure 3 This is a schematic diagram of the structure proposed in this scheme, showing the hinged connection between the sliding rod and the moving pole and the fixed pole.
[0025] Figure 4 This is a schematic diagram of the cylindrical electrofusion electrode proposed in this scheme when bent to the right;
[0026] Figure 5 This is a schematic diagram of the cylindrical electrofusion electrode proposed in this scheme when bent to the left;
[0027] Figure 6 This is a schematic diagram of the cylindrical electrofusion electrode proposed in this scheme when it is not bent.
[0028] Figure 7 This is a schematic diagram of the structure of the cylindrical electrofusion electrode proposed in this scheme when bent downwards;
[0029] Figure 8 This is a schematic diagram of the structure of the moving pole, fixed pole, and fixed block at the flat notch proposed in this scheme;
[0030] Figure 9 This is a schematic diagram of the cylindrical electrofusion electrode proposed in this scheme when it is bent to the right;
[0031] Figure 10 This is a schematic diagram of the cylindrical electrofusion electrode proposed in this scheme when bent to the left;
[0032] Figure 11 Schematic diagrams of the cylindrical electrofusion electrode with different degrees of bending proposed in this scheme;
[0033] Figure 12 This is a schematic diagram showing the deflection of the slide rod and the moving pole at the hinge point position proposed in this scheme.
[0034] Reference numerals: 1. Body; 2. Push ring; 3. Fixed pole; 4. Moving pole; 5. Limiting pin; 6. Slide rod; 7. Spring; 8. Friction part; 9. Hinge ring; 10. Fixing block; 11. Adjusting groove; 12. Hinge ear; 13. Socket;
[0035] 101. Flat notch; 102. Long groove; 103. Through hole. Detailed Implementation
[0036] This embodiment provides hemostatic ablation forceps, as per the instruction manual. Figure 1-11 As shown, it specifically includes:
[0037] The body 1 is in the shape of a hollow cylindrical tube. A flat notch 101 is opened at one end of the body 1, and a long groove 102 is opened at the circumference of the other end of the body 1 near the edge. Medical staff hold the body 1 and extend the end with the flat notch 101 to the place where hemostasis is required. A through hole 103 is opened inside.
[0038] Push ring 2 is fitted onto the main body 1 near the opening of the long slot 102. A limit pin 5 is riveted to the push ring 2. The limit pin 5 slides inside the long slot 102. A friction part 8 is also provided on the side wall of the push ring 2 near the limit pin 5. Several protrusions are provided on the surface of the friction part 8 to increase the friction force. Medical staff hold the main body 1 with one hand and push the push ring 2 by squeezing the friction part 8 with the other hand, thereby changing the distance that the limit slot slides inside the long slot 102.
[0039] The slide rod 6 is fitted inside the through hole 103 of the body 1. Therefore, the slide rod 6 can slide back and forth in the through hole 103 inside the body 1. One end of the slide rod 6 extends outward along the through hole 103 inside the body 1 and is riveted to the limit pin 5 near the position of the limit pin 5. When the medical staff pushes the push ring 2, the limit pin 5 will drive the connected slide rod 6 to slide inside the body 1, thereby changing the position of the slide rod 6 inside the body 1.
[0040] The other end of the slide rod 6 extends along the internal through hole 103 of the body 1 to the flat notch 101, where the fixed electrode 3 and the moving electrode 4 are hinged. The fixed electrode 3 remains stationary, while the moving electrode 4 is hinged to the slide rod 6. When the slide rod 6 moves toward the flat notch 101, the moving electrode 4 will rotate and open with the flat notch 101 as the fulcrum due to the different position of the fixed electrode 3. The angle between the fixed electrode 3 and the moving electrode 4 will increase. When the slide rod 6 moves in the opposite direction, the angle will decrease. This adjusts the angle between the fixed electrode 3 and the moving electrode 4, making it easier to ablate blood clots at the lesion site.
[0041] Please refer to the instruction manual attached. Figure 3 , 8The hinge connection method between the moving pole 4 and the slide rod 6 in this embodiment is described in detail: a hinge ring 9 is provided at the hinge position between the slide rod 6 and the moving pole 4, a fixing block 10 is fixedly connected to one end of the fixed pole 3, the fixing block 10 is cylindrical and is inserted into the flat notch 101, an adjustment groove 11 is opened inside the fixing block 10, and a hinge ear 12 is provided at the end of the moving pole 4 that extends into the adjustment groove 11. The hinge ear 12 passes through the adjustment groove 11 and extends into the flat notch 101 to hinge with the hinge ring 9 at the end of the slide rod 6.
[0042] Continue to refer to the instruction manual appendix Figure 8 Further explanation of the moving electrode 4 and the fixed electrode 3 in this embodiment: The fixed electrode 3 and the moving electrode 4 are circular ring structures, with cylindrical electrofusion electrodes provided on the sidewalls of the rings to facilitate hemostasis and ablation of the lesion. Simultaneously, an electrical conductor is provided inside the body 1. One end of the electrical conductor extends to the flat notch 101 and connects to the fixed electrode 3 and the moving electrode 4, supplying power to the fixed electrode 3 and the moving electrode 4 through the electrical conductor. The other end of the electrical conductor is arranged along the through hole 103 inside the body 1 and extends to the other end of the body 1, connecting to the socket 13. Please refer to the appendix of the instruction manual for details. Figure 2 This is to facilitate the supply of power to the conductors, and both the fixed pole 3 and the moving pole 4 are made of medical-grade metal materials, such as stainless steel, titanium, and titanium alloys, to facilitate electrical connection between the conductors and thus facilitate the supply of power to the fixed pole 3 and the moving pole 4.
[0043] In this embodiment, the cylindrical electrofusion electrode is configured in a straight line or a bent shape. Please refer to the appendix of the instruction manual. Figure 6 The cylindrical electrofusion electrode here is straight and not bent. Bending forms include, but are not limited to, left bends, right bends, left bends, and right bends. Please refer to the instruction manual for details. Figure 11 Of course, it can also be bent downwards; please refer to the instruction manual for details. Figure 7 Depending on the actual needs, either a straight or bent cylindrical electrofusion electrode can be selected. This will not be elaborated on further here. Setting the electrofusion electrode in a bent shape can make the distribution of current and heat transfer more concentrated on the area where hemostasis and ablation are required, thereby enhancing the hemostasis and ablation effects.
[0044] It is worth mentioning that the main body 1, push ring 2, limit pin 5 and slide rod 6 in this embodiment are all made of medical insulating material, so as to isolate them from electrical wires and make them easy for medical staff to hold and perform surgery.
[0045] Please refer to the instruction manual attached. Figure 2A spring 7 is also installed inside the long slot 102. The spring 7 is fitted outside the slide rod 6. One end of the spring 7 is fixedly connected to the position where the limiting pin 5 is inserted into the long slot 102 and riveted to the slide rod 6. The other end of the spring 7 is fixedly connected to the inner end face of the body 1. Therefore, when the limiting pin 5 moves away from the flat notch 101, it will squeeze the spring 7. When the medical staff releases the limiting pin 5, the elastic potential energy of the spring 7 is released, thereby pushing the limiting pin 5 back to its original position, that is, pushing the slide rod 6 back to its original position.
[0046] Additionally, it must be mentioned that during actual use, when the operator pushes the push ring 2, the push ring 2 causes the riveted pin 5 to move within the long slot. The movement of the limit pin 5 then causes the slide rod 6 to move. As the slide rod 6 moves, the position of the hinge point between the other side of the slide rod 6 and the moving pole 4 will swing. Because the position of the fixed pole 3 remains unchanged, the moving pole 4 will swing around the hinge point, with the swing trajectory forming an arc. Furthermore, because the slide rod 6 itself can undergo slight deformation, although it slides back and forth on the push ring 2 side, it also deflects slightly along the arc trajectory while sliding back and forth on the hinge point side. This, in conjunction with the moving pole 4, causes the moving pole 4 to rotate and open. Please refer to the instruction manual for details. Figure 12 The dotted line represents the initial position of the slide rod 6, and the solid line represents the position of the slide rod 6 after rotation. This is a schematic diagram of the principle. For this reason, the flat notch 101 opened at one end of the main body 1 is flat and notch-shaped, in order to accommodate the swing of the slide rod 6 at the hinge point, so a long strip opening is not used.
[0047] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0048] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0049] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0050] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A hemostatic ablation forceps, characterized in that, include: The body (1) is in the shape of a hollow cylindrical tube. A flat notch (101) is opened at one end of the body (1), and a long slot (102) is opened at the circumference of the other end of the body (1) near the edge. A through hole (103) is opened inside. Push ring (2) is fitted on the body (1) near the opening of the long slot (102). A limit pin (5) is riveted to the push ring (2). The limit pin (5) slides into the long slot (102). A slide rod (6) is fitted inside the through hole (103) of the body (1). One end of the slide rod (6) extends outward along the through hole (103) inside the body (1). The slide rod (6) is riveted to the limiting pin (5) near the limiting pin (5). The other end of the slide rod (6) extends outward along the through hole (103) inside the body (1) to the flat notch (101) where the fixed pole (3) and the moving pole (4) are hinged. The fixed pole (3) remains stationary. The moving pole (4) is hinged to the slide rod (6) to adjust the angle between the fixed pole (3) and the moving pole (4).
2. The hemostatic ablation forceps according to claim 1, characterized in that: A hinge ring (9) is provided at the hinge position of the slide rod (6) and the moving pole (4). A fixing block (10) is fixedly connected to one end of the fixed pole (3). The fixing block (10) is cylindrical and is inserted into the flat notch (101). An adjustment groove (11) is opened inside the fixing block (10). A hinge ear (12) is provided at the end of the moving pole (4) that extends into the adjustment groove (11). The hinge ear (12) passes through the adjustment groove (11) and extends into the flat notch (101) to hinge with the hinge ring (9) at the end of the slide rod (6).
3. The hemostatic ablation forceps according to claim 1, characterized in that: The push ring (2) is also provided with a friction part (8) near the limit pin (5) on its side wall. The friction part (8) is elliptical and fits the shape of a finger.
4. The hemostatic ablation forceps according to claim 3, characterized in that: The friction part (8) has several protrusions on its surface, and each protrusion is a component made of silicone material.
5. The hemostatic ablation forceps according to claim 2, characterized in that: Both the fixed electrode (3) and the moving electrode (4) are circular ring structures, and cylindrical electrofusion electrodes are provided on the side walls of the rings.
6. The hemostatic ablation forceps according to claim 5, characterized in that: The cylindrical electrofusion electrode is bent, and the bending forms include left bend, right bend, left curve, and right curve.
7. The hemostatic ablation forceps according to claim 1, characterized in that: The body (1) is provided with an electrical wire inside. One end of the electrical wire extends to the flat notch (101) and is connected to the fixed pole (3) and the moving pole (4). The other end of the electrical wire is arranged along the through hole (103) inside the body (1) and extends to the other end of the body (1) to connect to the socket (13).
8. The hemostatic ablation forceps according to claim 7, characterized in that: Both the fixed electrode (3) and the moving electrode (4) are components made of medical-grade metal.
9. The hemostatic ablation forceps according to claim 7, characterized in that: The main body (1), the push ring (2), the limiting pin (5), and the slide rod (6) are all components made of medical insulating material.
10. The hemostatic ablation forceps according to claim 1, characterized in that: A spring (7) is also provided inside the long slot (102). The spring (7) is fitted on the outside of the slide rod (6). One end of the spring (7) is fixedly connected to the position where the limiting pin (5) is inserted into the long slot (102) and riveted to the slide rod (6). The other end of the spring (7) is fixedly connected to the inner end face of the body (1).