Bipolar electric coagulation forceps with adjustable length
By separating the bipolar electrocoagulation forceps into a forceps bar and a forceps handle, and adopting an adjustable length design, the inventory and switching problems of traditional bipolar electrocoagulation forceps are solved, reducing costs and improving surgical efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN FENGHENGJING MEDICAL TECH CO LTD
- Filing Date
- 2025-01-16
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional bipolar electrocoagulation forceps have high inventory and production management costs for manufacturers due to the difference in forceps length. In addition, the forceps length needs to be frequently switched during the operation, which distracts the doctor and increases the operation time.
Design an adjustable-length bipolar electrocoagulation forceps, the forceps body is divided into forceps bar and forceps handle, the length is adjusted by a drum spring, the materials selected are 304 stainless steel, H62 copper and ABS, the end of the forceps bar retracts and extends inside the forceps handle, the adjustment range is 100mm-250mm, and a limit cap and sealing ring are used for connection.
It reduces manufacturers' inventory and production management costs, avoids distracting doctors by switching forceps, shortens surgical time, and improves surgical efficiency and accuracy.
Smart Images
Figure CN224193563U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a bipolar electrocoagulation forceps with adjustable length. Background Technology
[0002] Bipolar electrocoagulation forceps consists of two electrodes assembled on the same support. When the high-frequency host outputs a high-frequency current with a certain waveform, the high-frequency current flows between the two electrodes and acts directly on human tissue. The two electrodes of the bipolar electrode itself serve as a circuit to electrocoagulate and stop bleeding in the patient's lesion tissue. Generally, a neutral electrode is not required. Traditional bipolar electrocoagulation forceps mainly consist of four parts: forceps body, fixation base, cable and plug.
[0003] In general surgery, bipolar electrocoagulation forceps, compared to traditional hemostasis methods, can more accurately target bleeding points at the surgical site by adjusting the intensity and duration of the current. The specific operation of bipolar electrocoagulation forceps hemostasis involves the doctor holding the fixation base and the two ends of the forceps, with the plug connected to the high-frequency host device. The doctor controls the generation of current in the high-frequency host device by activating the foot pedal. The high-frequency current is transmitted through the cable to the tip of the electrodes at both ends of the forceps. The tip of the forceps contacts the surgical site to form a current loop. The high-frequency current generates heat due to the resistance of human tissue. When the heat raises the temperature of the cells in the tissue to the point where the proteins in the cells denature, the tissue proteins shrink, curl, and denature, thus achieving the effect of electrocoagulation hemostasis.
[0004] Currently, due to the differences in clinical application scenarios and doctors' needs, the length of traditional bipolar electrocoagulation forceps is divided into several sizes. For example, in delicate surgeries (ENT, neurosurgery, hepatobiliary surgery, etc.), doctors need to observe the surgical site closely during the operation to make the coagulation more accurate. Therefore, doctors are accustomed to using bipolar electrocoagulation forceps with shorter forceps. The length of short electrocoagulation forceps on the market is about 100mm-150mm. On the other hand, doctors in general surgery, spinal surgery and other departments are accustomed to using long bipolar electrocoagulation forceps with a forceps length of 160mm-250mm.
[0005] Due to the differences in the length and size of the forceps, there are many models and specifications of bipolar electrocoagulation forceps on the market, which have the following two drawbacks.
[0006] First, it greatly increases manufacturers' costs in terms of inventory and production management;
[0007] Second: For more precise clinical surgeries or surgeries involving multiple surgical sites, doctors need to switch between bipolar electrocoagulation forceps of different lengths during the operation. Therefore, the switching of bipolar electrocoagulation forceps can distract the doctor's attention and increase the patient's operation time, which can easily delay the patient's treatment. Utility Model Content
[0008] The technical problem to be solved by this utility model is to overcome the existing defects and provide a bipolar electrocoagulation forceps with adjustable length. The material is inexpensive and the processing cost is low, which greatly reduces the manufacturer's inventory and production management costs. The length is easy to adjust and will not distract the doctor's surgical attention or increase the additional operation time for patients, thereby facilitating timely treatment of patients and effectively solving the problems in the background art.
[0009] To achieve the aforementioned objective, this utility model adopts the following technical solution:
[0010] An adjustable-length bipolar electrocoagulation forceps includes a base and a forceps handle. One end of the base is connected to a plug via a cable, and the other end of the base is fixed with a forceps handle. A through hole is provided at the end of the forceps handle.
[0011] A drum spring is welded to the end of the tweezers bar, and the drum spring extends into the inside of the through hole. The junction of the tweezers handle and the tweezers bar is connected by a limiting cap.
[0012] Furthermore, the joint between the tweezer handle and the tweezer rod is sealed with a sealing ring.
[0013] Furthermore, the drum spring has a "lantern-shaped" structure with a hollowed-out middle section, and the drum spring is made of beryllium bronze.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This length-adjustable bipolar electrocoagulation forceps has the following advantages: the forceps body is designed to be divided into a forceps bar and a forceps handle. The tail end of the forceps bar achieves the function of length adjustment by contraction and extension within the internal limit range of the forceps handle. Its material is inexpensive and the processing cost is low, which greatly reduces the manufacturer's inventory and production management costs. Its length adjustment is convenient and will not distract the doctor's surgical attention or increase the additional surgical time for patients, thus facilitating timely treatment of patients. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a partial structural diagram of the tweezers handle of this utility model;
[0017] Figure 3 This is a schematic diagram of the connection structure between the tweezers bar and the tweezers handle of this utility model.
[0018] In the diagram: 1-tweezers bar, 2-tweezers handle, 3-fixed base, 4-cable, 5-plug, 6-drum spring, 7-sealing ring, 8-limiting cover. Detailed Implementation
[0019] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.
[0020] Please see Figure 1-3 This embodiment provides a technical solution: a bipolar electrocoagulation tweezers with adjustable length, including a fixed base 3 and a tweezers handle 1. One end of the fixed base 3 is connected to a plug 5 via a cable 4, and the other end of the fixed base 3 is fixed with a tweezers handle 2. The end of the tweezers handle 2 is provided with a through hole.
[0021] A drum spring 6 is welded to the end of the tweezers bar 1. The drum spring 6 extends into the inside of the through hole. The junction of the tweezers handle 2 and the tweezers bar 1 is connected by a limiting cover 8.
[0022] Bipolar electrocoagulation forceps consist of two electrodes assembled on the same support. When the high-frequency host outputs a high-frequency current of a certain waveform, the high-frequency current flows between the two electrodes and acts directly on human tissue. The two electrodes of the bipolar electrode itself serve as a circuit to electrocoagulate and stop bleeding in the patient's lesion tissue. Generally, a neutral electrode is not required.
[0023] Traditional bipolar electrocoagulation forceps mainly consist of four parts: the forceps body, the mounting base, the cable, and the plug.
[0024] In general surgery, bipolar electrocoagulation forceps, compared to traditional hemostasis methods, can more accurately target bleeding points at the surgical site by adjusting the intensity and duration of the current. The specific operation involves the surgeon holding the base and the two ends of the forceps. The plug connects to a high-frequency generator. The surgeon controls the current generation of the high-frequency generator by pressing a foot pedal. The high-frequency current is transmitted through a cable to the tips of the electrodes at both ends of the forceps. The tips of the forceps contact the surgical site to form a current loop. The high-frequency current generates heat due to the resistance of the human tissue. When the heat raises the temperature of the cells to a point where the proteins in the cells denature, the tissue proteins contract, curl, and denature, thus achieving electrocoagulation hemostasis.
[0025] Currently, due to differences in clinical application scenarios and doctors' needs, traditional bipolar electrocoagulation forceps are available in multiple sizes. For example, in delicate surgeries (ENT, neurosurgery, hepatobiliary surgery, etc.), doctors need to observe the surgical site closely during the operation to ensure more accurate coagulation. Therefore, doctors usually use shorter bipolar electrocoagulation forceps, which are currently available on the market in the range of 100mm-150mm. On the other hand, doctors in general surgery, spinal surgery, and other departments usually use longer bipolar electrocoagulation forceps with a length of 160mm-250mm.
[0026] Due to the varying lengths of the forceps, there are numerous models and specifications of bipolar electrocoagulation forceps on the market, which presents two main drawbacks. Firstly, it significantly increases manufacturers' inventory and production management costs. Secondly, for more precise surgeries or surgeries involving multiple surgical sites, surgeons need to switch between bipolar electrocoagulation forceps of different lengths during the procedure. This switching process distracts the surgeon, increases patient surgery time, and can potentially delay treatment.
[0027] To address the shortcomings of traditional bipolar electrocoagulation forceps, this invention optimizes the forceps body structure by designing the forceps body as a combination of forceps bar 1 and forceps handle 2 to achieve the function of length extension and retraction adjustment of the forceps body.
[0028] The material of the forceps bar 1 can be 304 stainless steel or H62 copper, the material of the forceps handle 2 can be 304 stainless steel, the material of the fixing base 3 can be ABS, the material of the cable 4 can be the commonly used ABS, and the material of the plug 5 can be ABS+304 stainless steel. All of the above materials meet the requirements of biological evaluation.
[0029] This novel bipolar electrocoagulation forceps design splits the forceps body into a forceps bar 1 and a forceps handle 2. The tail end of the forceps bar 1 achieves length adjustment through contraction and extension within the internal confinement range of the forceps handle 2. The specific implementation steps are described below:
[0030] The disassembled forceps handle 1 has a flexible, deformable beryllium bronze drum spring 6 welded to its tail end. The disassembled forceps handle 2 has an internal through-hole. When the doctor holds the forceps handle 1 and slides it, the drum spring 6 at the tail end of the forceps handle 1 is displaced within the through-hole, thus achieving the adjustable telescopic function of this patented application. This patented design allows for adjustable telescopic length within the range of 100mm-250mm. Before adjustment, the overall length of the forceps is 100mm; after adjustment to the maximum limit displacement, the overall length of the forceps is 250mm.
[0031] The tweezers body has a limit cap 8 at the junction of the tweezers bar 1 and the tweezers handle 2. This limit cap prevents the drum spring 6 at the tail end of the tweezers bar 1 from sliding out of the through hole at the front end of the tweezers handle 2, thus providing a limit control function.
[0032] The joint between the forceps handle 2 and the forceps rod 1 is sealed by a sealing ring 7. The sealing ring 7 serves to waterproof the surgical procedure, thereby preventing the surgical electrode from aging and failing.
[0033] The drum spring 6 has a "lantern-shaped" structure with a hollowed-out center. Made of beryllium bronze, the advantages of using drum spring 6 are as follows:
[0034] I. Material advantages: Beryllium bronze is used, which is a non-ferrous alloy with good combination of mechanical, physical, chemical and corrosion resistance. After solution treatment and aging treatment, it has high strength limit, elastic limit, yield limit and fatigue limit comparable to special steel. The material is inexpensive and the processing cost is low.
[0035] II. Structural Advantages: The drum spring 6 adopts a "lantern-style" structure with a hollow design in the middle. Combined with the good ductility and elasticity of its material, the drum spring 6 can ensure excellent elastic performance. When the doctor adjusts the length of the forceps bar 1 according to the needs of use, the forceps bar 1 and the forceps handle 2 can be adjusted by internal contact, which can ensure smooth sliding and save time and effort when the doctor uses it. At the same time, due to its "lantern-style" hollow design, the friction between the forceps handle 2 and the forceps bar 1 is increased, ensuring that the forceps bar 1 will not retract to the forceps handle 2 due to the forceps tip at the front end of the forceps bar 1 contacting human tissue during the doctor's use. The "lantern-style" structure of the drum spring 6 improves the stability of the product's use performance.
[0036] III. Performance Advantages: Beryllium bronze itself possesses high electrical conductivity, thermal conductivity, high hardness and wear resistance, high creep resistance and corrosion resistance. Its high performance in wear and corrosion resistance ensures that the forceps lever 1 will not slip and fail with the increase of product usage. During the operation, the doctor selects the appropriate energy for the operation based on the trauma of the patient's surgical site. Its high conductivity can efficiently transmit the current output by the high-frequency surgical equipment without energy loss, thus improving the effectiveness of energy output and the accuracy of the operation.
[0037] The working principle of the length-adjustable bipolar electrocoagulation forceps provided by this utility model is as follows: when the doctor holds the forceps rod 1 and slides it, the drum spring 6 at the tail end of the forceps rod 1 will be displaced in the through hole inside the forceps rod 1, thus realizing the length-adjustable telescopic function of this patent.
[0038] It is worth noting that the components disclosed in the above embodiments are all general standard parts or parts known to those skilled in the art, and their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. For example, a rotary connection can refer to a rotary connection through a bearing.
[0040] The parts of this utility model not described in detail are prior art. Although this utility model has been specifically shown and introduced in conjunction with preferred embodiments, there are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. However, those skilled in the art should understand that various changes in form and detail can be made to this utility model without departing from the spirit and scope of this utility model as defined by the appended claims, and all such changes shall be within the protection scope of this utility model.
Claims
1. A length-adjustable bipolar electrocoagulation forceps, comprising a base (3) and a forceps bar (1), characterized in that: One end of the fixing base (3) is connected to a plug (5) via a cable (4), and the other end of the fixing base (3) is fixed with a tweezer handle (2), and the end of the tweezer handle (2) is provided with a through hole; The end of the tweezers (1) is welded with a drum spring (6), which extends into the inside of the through hole. The junction of the tweezers handle (2) and the tweezers (1) is connected by a limiting cap (8).
2. The length-adjustable bipolar electrocoagulation tweezers according to claim 1, characterized in that: The joint between the tweezer handle (2) and the tweezer rod (1) is sealed by a sealing ring (7).
3. The length-adjustable bipolar electrocoagulation tweezers according to claim 1, characterized in that: The drum spring (6) has a "lantern" structure with a hollowed-out middle section, and the drum spring (6) is made of beryllium bronze.