Combined bipolar coagulation forceps with block insulation tips

Abstract

The disclosure provides a combined bipolar electrocoagulation forceps with block insulation forceps tips, and relates to the technical field of medical instrument manufacturing. The main body of the forceps includes a holding end and a working end, and is internally provided with an electrode and externally provided with insulation. The forceps tips are selectively connected with the working end of the main body and are provided in the form of a cone structure with multiple surfaces. One cone surface of the forceps tips is provided as a first working surface, and the remaining cone surfaces are provided as second working surfaces. At least part of the second working surfaces is provided as an insulation area. The holding end is connected through a base, and the first working surfaces of the two forceps tips are oppositely arranged. Through the above technical scheme, the forceps tips in the form of a multi-cone surface body are provided with different working surfaces and block insulation areas. On the basis of ensuring the electrocoagulation hemostasis function, the electrode areas and the insulation areas with different areas can be used to realize the operations of tissue blunt dissection and retraction protection, etc. The different types of electrocoagulation forceps do not need to be frequently replaced during the operation, the operation efficiency and accuracy are improved, and the clinical adaptability and economy are improved.

Description

Technical Field

[0001] This disclosure relates to the field of medical device manufacturing technology, specifically to a combined bipolar electrocoagulation forceps with segmented insulated forceps tips. Background Technology

[0002] Electrocoagulation forceps are widely used in open and microsurgical procedures such as thyroid surgery, breast surgery, and neurosurgery. They rely on the tips (forceps points) of two forceps arms to deliver a high-frequency current for tissue electrocoagulation and hemostasis. The two forceps points typically require exposed metal areas to create a current field. In clinical practice, in addition to holding the tissue for electrocoagulation, the forceps arms also need to be used for manipulations such as pushing and blunt dissection using areas not exposed on the back or lateral wall. Therefore, the forceps arms must have reliable insulation, while the forceps points must have locally exposed conductive metal.

[0003] In related technologies, currently available mature products mainly fall into two categories: one type retains conductivity only on the inner gripping surface of the forceps tip, while the rest of the outer surface is insulated; the other type has the entire metal of the forceps tip completely exposed for conductivity. Because electrocoagulation forceps are manufactured with paired, fixed forceps tips, neither of these types of forceps can perform multiple operations simultaneously, especially in surgeries requiring both blunt dissection and electrocoagulation hemostasis. Different electrocoagulation forceps must be used, which is inconvenient, reduces surgical efficiency and precision, and necessitates the purchase of multiple sets of different types of complete instruments, increasing hospital procurement and management costs. Furthermore, the production of electrocoagulation forceps requires multiple sets of molds, increasing the inventory pressure of spare parts. Utility Model Content

[0004] The purpose of this disclosure is to provide a combined bipolar electrocoagulation tweezers with segmented insulated tweezer tips to at least partially solve the problems existing in the aforementioned related technologies.

[0005] To achieve the above objectives, this disclosure provides a combined bipolar electrocoagulation forceps with segmented insulated tweezers tips, comprising: a main body including a gripping end and a working end, wherein an electrode is disposed inside the main body along its length, and the outer surface of the main body is insulated; and tweezers tips selectively connected to the working end of the main body for connecting to the electrode when connected to the working end, wherein the tweezers tips are configured as a conical structure with multiple surfaces, wherein one conical surface of the tweezers tip is configured as a first working surface, and the remaining conical surfaces are configured as second working surfaces, wherein at least a portion of the second working surface near the working end is configured as an insulating region, and wherein the gripping ends of any two main bodies are configured to be connected via a base, and the two tweezers tips on the two interconnected main bodies are configured with the first working surfaces facing each other.

[0006] Optionally, the main body further includes a bent portion disposed between the gripping end and the working end, so that the gripping end is staggered relative to the working end along the length direction of the main body.

[0007] Optionally, the main body further includes a limiting post disposed on the bent portion. The limiting post extends in a direction perpendicular to the side surface of the main body, and when any two main bodies are connected by the base, the limiting post is positioned opposite to each other.

[0008] Optionally, the second working surface further includes an electrode area, and the junction of the electrode area and the insulating area is configured with a cross-sectional structure perpendicular to the surface of the tweezers tip.

[0009] Optionally, the area ratio of the electrode region relative to the second working surface is set to be greater than or equal to 30% of the second working surface.

[0010] Optionally, the insulating region is provided with a plurality of insulating layers along the radial direction of the tweezer tip, and the thickness of the plurality of insulating layers is respectively set to gradually decrease in the direction away from the surface of the tweezer tip.

[0011] Optionally, the outer surface of the insulating layer is uniformly provided with a corrugated texture, which is configured to spread and extend away from the working end.

[0012] Optionally, the multiple conical edges of the tweezers tip are configured with a blunted rounded corner structure, and the conical edges between any two adjacent second working surfaces are provided with an insulating transition portion connected to the insulating layer.

[0013] Optionally, the insulating areas of any two adjacent second working surfaces are configured to be continuously arranged on the same cross section of the tweezer tip, so that the insulating areas of different second working surfaces are relatively flush along the circumference of the tweezer tip.

[0014] Optionally, the tip of the tweezers is configured with a hook-shaped structure, and the tweezers tip is bent relative to each other when any two of the main bodies are connected.

[0015] Optionally, the material of the body is set to hard metal or soft metal, wherein the body set to soft metal is configured to be at least partially bent.

[0016] Through the above technical solution, the detachable forceps tip with a multi-conical structure of this application is equipped with different working surfaces and segmented insulating areas. While ensuring electrocoagulation hemostasis, it allows for intraoperative operations such as blunt tissue dissection and retraction protection through electrode areas and insulating areas of different sizes. Simultaneously, the detachable structure allows for the replacement of forceps tips with different insulating areas on a single instrument set to meet various clinical operation needs, eliminating the need for frequent intraoperative changes of different types of electrocoagulation forceps. This effectively simplifies the surgical procedure, improves surgical efficiency and accuracy, and increases the clinical adaptability and overall cost-effectiveness of bipolar electrocoagulation forceps.

[0017] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of a combined bipolar electrocoagulation tweezers according to an exemplary embodiment.

[0020] Figure 2 This is a schematic diagram of the connection structure of a combined bipolar electrocoagulation tweezers according to an exemplary embodiment.

[0021] Figure 3 This is a schematic diagram of a tweezer tip having a segmented insulating region, according to an exemplary embodiment.

[0022] Figure 4 This is a schematic diagram of a tweezers tip structure with an overall insulating region, according to an exemplary embodiment.

[0023] Figure 5 This is a schematic diagram of a tweezers tip structure with an integral electrode region, according to an exemplary embodiment.

[0024] Figure 6 This is a schematic diagram of the structure of a hook-shaped tweezer tip according to an exemplary embodiment.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1-Main body, 11-Holding end, 12-Working end, 13-Bending part, 14-Limiting post, 2-Base, 3-Tweezers tip, 31-First working surface, 32-Second working surface, 321-Insulation area, 322-Electrode area. Detailed Implementation

[0027] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0028] In this disclosure, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" generally refer to the upper and lower, top and bottom of the relevant components in actual use. "Inner" and "outer" refer to the inner and outer sides of the relevant components relative to the actual contour. Furthermore, the terms "first," "second," etc., used in this disclosure are for distinguishing one element from another and do not have sequential or importance implications.

[0029] This disclosure provides a combined bipolar electrocoagulation tweezers with segmented insulated tweezer tips, as shown in the reference. Figures 1 to 6 The combined bipolar electrocoagulation forceps includes a main body 1, a base 2, and a forceps tip 3. The main body 1 includes a gripping end 11 and a working end 12. Electrodes are arranged along the length direction inside the main body 1. The outer surface of the main body 1 is insulated. The forceps tip 3 is selectively connected to the working end 12 of the main body 1 for connecting with the electrodes when connected to the working end 12. The forceps tip 3 is configured as a conical structure with multiple surfaces. One conical surface of the forceps tip 3 is configured as a first working surface 31, and the remaining conical surfaces are configured as second working surfaces 32. At least a portion of the second working surface 32 near the working end 12 is configured as an insulating area 321. Furthermore, the gripping ends 11 of any two main bodies 1 are configured to be connected through the base 2, and the two forceps tips 3 on the two interconnected main bodies 1 are configured with their first working surfaces 31 facing each other.

[0030] In the above embodiments, this device adopts a split-combination structure design. Two independent main bodies 1 are assembled via the base 2 to form a complete bipolar electrocoagulation forceps structure. This design facilitates easy assembly and disassembly, strong adaptability, and convenient replacement and maintenance of individual components. The main body 1 has a fully insulated exterior. Electrodes are arranged in the non-exposed areas inside the main body 1 to achieve conductivity between the two ends of the gripping end 11 and the working end 12. This avoids accidental discharge from the main body 1 that could injure the operator or unaffected areas, improving surgical safety. The replaceable forceps tip 3 is detachably connected to the working end 12 of the main body, allowing for flexible replacement of forceps tip 3 to suit different surgical procedures, operating spaces, and tissue types, thus improving the device's versatility. The forceps tip 3 adopts a multi-faceted conical structure, with a first working surface 31 and a second working surface 32 with an insulating area 321 arranged according to functional zones, achieving a segmented insulating layout on the surface of the forceps tip 3. The first working surface 31, positioned opposite each other, serves as the core electrocoagulation area, forming a current field or current path to clamp the target tissue and complete electrocoagulation hemostasis. An insulating area 321 can be provided on the second working surface 32 near the working end 12, ensuring stable insulation of the forceps tip 3 root and surrounding non-working areas. This effectively prevents accidental contact and discharge between the forceps tip edge or root and surrounding normal tissues, blood vessels, organs, etc., reducing the electrocoagulation range, achieving precise targeted electrocoagulation, reducing surgical complications, and meeting the needs of refined minimally invasive surgical procedures. It should be noted that the accompanying drawings and description below will use a common tetrahedral structure as an example. Other multi-faceted pyramidal structures can be selected based on actual intraoperative needs, which will not be elaborated upon here.

[0031] In some embodiments, refer to Figure 1 and Figure 2 The main body 1 may also include a bent portion 13, which may be disposed between the gripping end 11 and the working end 12, so that the gripping end 11 is staggered relative to the working end 12 along the length direction of the main body 1.

[0032] In the above embodiment, a bending portion 13 is added between the gripping end 11 and the working end 12, forming an axially staggered bending structure between the gripping area and the working area, changing the coaxial layout of the traditional straight electrocoagulation forceps. This structure effectively avoids the problem of the hand gripping area obstructing the surgical field of vision. When the surgeon holds the forceps, the hand position is far away from the front working area, allowing clear observation of the operation status of deep surgical areas or narrow suture tissues, improving the clarity of the surgical field of vision. At the same time, the bent and staggered structure is more in line with the ergonomic gripping angle, which can reduce the wrist torsional load during long-term operation, improve the operation stability and grip comfort, and facilitate the surgeon to complete precise clamping and electrocoagulation operations in deep, narrow, and hidden surgical areas, effectively improving the convenience and accuracy of minimally invasive surgery.

[0033] In some embodiments, refer to Figure 1 and Figure 2 The main body 1 may also include a limiting post 14, which may be disposed in the bending part 13. The limiting post 14 may extend in a direction perpendicular to the side surface of the main body 1, and the limiting post 14 may be disposed opposite to each other when any two main bodies 1 are connected by the base 2.

[0034] In the above embodiment, a limiting post 14 is vertically protruding from the bending portion 13 of the main body, and the limiting posts 14 are aligned with each other after the two sets of main bodies 1 are assembled, forming a stable mechanical limiting structure during the opening and closing of the bipolar electrocoagulation forceps. The paired limiting posts 14 abut against each other, effectively limiting the maximum opening angle of the forceps and avoiding problems such as forceps deformation, electrode force deviation, and forceps tip misalignment caused by excessive opening angles, thus continuously ensuring the alignment accuracy of the first working surfaces 31 of the two forceps tips. Simultaneously, the limiting posts 14 are located in the non-operating area of ​​the bending portion 13, not interfering with the surgical operation and field of vision. The compact and reasonable structural layout can maintain stable forceps opening and closing stroke and accurate alignment for a long time, improving the stability and service life of the equipment and ensuring the accuracy of electrocoagulation operations after repeated operations.

[0035] In some embodiments, refer to Figures 1 to 6 The second working surface 32 may also include an electrode area 322, and the junction of the electrode area 322 and the insulating area 321 may be configured as a cross-sectional structure perpendicular to the surface of the tweezer tip 3.

[0036] In the above embodiments, the second working surface 32 can adopt a modular functional partition layout with an upper insulating area 321 and a lower electrode area 322. While retaining the conductivity of the forceps tip, it achieves insulation protection of the root area, balancing precise electrocoagulation with the prevention of accidental injury. The boundary between the insulating area 321 and the electrode area 322 adopts a vertical cross-sectional structure perpendicular to the forceps tip surface. Compared with a sloping transition structure, this cross-sectional boundary is clear and the partitions are regular, effectively avoiding the problems of current diffusion or uncontrollable range of action caused by the gradual transition of the insulating coating. The vertical cross-section can accurately define the boundary between the electrode area 322 and the insulating area 321, so that the electrocoagulation current is concentrated only in the preset electrode area 322 and the first working surface 31, avoiding boundary leakage or stray current diffusion, further improving the targeting and controllability of the electrocoagulation effect, and ensuring the precision and safety of the surgical operation.

[0037] In some embodiments, the area ratio of the electrode region 322 relative to the second working surface 32 can be set to be greater than or equal to 30% of the second working surface 32. In this embodiment, the electrode region 322 can be selected with different areas depending on the type of surgery or the treatment environment of the affected area. When the area ratio of the electrode region 322 to the second working surface 32 is relatively small, it can have a larger insulation protection range, and the coagulation treatment area of ​​the electrode region 322 is also more precise. Similarly, when a forceps tip 3 with a larger area ratio of the electrode region 322 is selected, the forceps tip 3 has a larger coagulation treatment area, which can match affected areas of different sizes. The insulation area 321 can provide insulation protection while adapting the electrode region 322 to the treatment environment of the affected area, ensuring the precision and safety of the surgery.

[0038] In some embodiments, the insulating region 321 may be provided with a plurality of insulating layers along the radial direction of the tweezer tip 3, and the thickness of the plurality of insulating layers may be set to gradually decrease along the direction away from the surface of the tweezer tip 3.

[0039] In the above embodiment, the insulating area 321 adopts a multi-layer composite insulating layer stacked structure, and the thickness of the multi-layer insulating layers decreases from the inside to the outside, forming a gradient insulating structure. The inner thick insulating layer provides high-strength and high-stability basic insulation protection, effectively blocking current leakage and avoiding leakage on the sidewall of the forceps tip. The outer thin insulating layer ensures surface smoothness and structural fit, adapts to the curved contour of the conical forceps tip 3, and avoids problems such as thick coating peeling, flaking, and cracking. The multi-layer insulating structure with gradient thickness not only ensures the reliability and stability of the overall insulation performance, improves the overall adhesion and structural strength of the insulating layer, and prevents the insulation layer from failing due to friction, clamping, or high temperature during surgery, but also controls the overall outer diameter of the forceps tip 3, avoiding the forceps body from becoming bulky and causing operational jamming due to excessive coating thickness, and adapts to the needs of delicate operation in minimally invasive and confined spaces.

[0040] In some embodiments, a corrugated texture is uniformly provided on the outer surface of the insulating layer, and the corrugated texture is configured to spread and extend in a direction away from the working end 12.

[0041] In the above embodiment, the diffused corrugated texture on the surface of the outer insulating layer extends along the axial direction of the forceps tip 3 towards the tip, effectively altering the surface fluid adhesion characteristics and tissue adhesion. During surgery, this corrugated structure reduces the large-area continuous adhesion of blood, tissue fluid, and exudate to the insulating area surface, disrupting the formation conditions of the conductive liquid film and effectively preventing cross-area leakage and accidental burns caused by continuous liquid adhesion. Simultaneously, the directional diffused corrugated texture enhances the surface friction damping of the insulating layer, moderately improving the anti-slip effect when gripping delicate tissues, preventing tissue slippage. Furthermore, the texture arrangement aligns with the forceps tip's operating direction, preventing dirt accumulation and facilitating postoperative cleaning and disinfection, thus balancing insulation stability, anti-slip operation, and ease of cleaning. In addition, the diffused corrugated texture prevents damage to the insulating layer when the forceps tip 3 or the main body 1 undergoes physical bending, improving the stability and protection of the working area.

[0042] In some embodiments, refer to Figures 1 to 5 The multiple conical edges of the tweezer tip 3 can be configured as blunt rounded corner structures, and the conical edges between any two adjacent second working surfaces 32 can be provided with an insulating transition portion connected to the insulating layer.

[0043] In the above embodiments, the conical edges of the forceps tip cone structure are rounded to effectively prevent sharp edges from scratching or puncturing fragile human tissues, blood vessels, and organs, thus improving the safety and gentleness of surgical operations. An insulating transition section is provided at the conical edges adjacent to the second working surface 32, and this transition section is integrated with the sidewall insulation layer, achieving seamless transition coverage of the insulating areas 321 on each side at the edge corners. This eliminates the risks of uninsulated corners, concentrated local electric fields, and tip discharge. Through the composite structure of rounded corners and edge insulation transition, the circumferential insulation integrity of the forceps tip is improved, preventing local leakage and tip discharge burns, thus comprehensively ensuring the safety of delicate surgical operations.

[0044] In some embodiments, refer to Figures 1 to 5 The insulating regions 321 of any two adjacent second working surfaces 32 can be configured to be continuously arranged on the same cross section of the tweezer tip 3, so that the insulating regions 321 of different second working surfaces 32 are relatively flush along the circumference of the tweezer tip 3.

[0045] In the above embodiment, the insulation areas 321 of each second working surface 32 are continuously and flush with each other in the same cross-section, so that the root of the forceps tip 3 forms a continuous and complete annular insulation barrier with a consistent height, avoiding local exposure problems caused by insulation gaps or misalignment. The circumferentially flush and continuous insulation structure can unify the insulation protection range of the root of the forceps tip 3, making the insulation boundary height of the entire sidewall consistent, effectively avoiding local leakage and blind spots caused by uneven local insulation height, ensuring that only the preset electrode area 322 of the forceps tip and the first working surface 31 can conduct during electrocoagulation, and the entire root area is stably insulated, further improving the regularity, stability and targeting of the block insulation, and adapting to various minimally invasive electrocoagulation surgeries with high precision and high safety requirements.

[0046] In some embodiments, refer to Figure 6 The tip of the tweezers 3 can be configured as a hook-shaped structure, and the tip of the tweezers 3 can be bent relative to each other when any two main bodies 1 are connected.

[0047] In the above embodiments, the two sets of forceps tips 3 can adopt a relatively curved hook-shaped end structure. The hook-shaped end can form a stable clamping jaw structure, which can effectively hook, clamp, and fix delicate tissues, blood vessels, and thin membranes, preventing tissue slippage and displacement during clamping, and improving clamping stability and fit. The bilaterally curved structure can achieve precise alignment and clamping force, ensuring close contact between the tissue and the working surface during electrocoagulation, uniform heating during electrocoagulation, and stable hemostasis, effectively improving the effect of electrocoagulation closure, hemostasis, and separation. At the same time, the hook-shaped tip is suitable for clamping deep tissues, folded tissues, and hidden gap tissues, making it applicable to a wider range of surgical procedures and more practical.

[0048] In some embodiments, the material of the body 1 may be set to hard metal or soft metal, wherein the body 1 set to soft metal is configured to be at least partially bent.

[0049] In the above embodiments, the main body 1 can be made of either hard metal or soft metal, allowing for flexible selection based on different surgical scenarios and adapting to diverse clinical operational needs. The hard metal main body boasts high structural strength and rigidity, resisting deformation and making it suitable for routine open surgery and routine tissue clamping electrocoagulation. It maintains stable shape and precise alignment over long-term use. The soft metal main body allows for moderate bending deformation, enabling the surgeon to manually fine-tune the bending angle of the forceps tip based on the surgical area angle, operating depth, and tissue location. This alters the forceps tip's working orientation, ensuring that the extended line of the bent forceps tip forms an angle relative to the length of the main body 1. This adapts to special operational needs such as narrow angles, off-center views, and deep, concealed surgical areas, allowing for angle adaptation without instrument replacement. This enhances instrument compatibility and surgical flexibility, reducing the difficulty of the surgical procedure.

[0050] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0051] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0052] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A combined bipolar electrocoagulation tweezers with segmented insulated tweezer tips, characterized in that, include: The main body includes a gripping end and a working end. Electrodes are arranged inside the main body along the length direction, and the outer surface of the main body is insulated. The tweezers tip is selectively connected to the working end of the main body, and is used to connect to the electrode when connected to the working end. The tweezers tip is configured as a conical structure with multiple surfaces, wherein one conical surface of the tweezers tip is configured as a first working surface, and the remaining conical surfaces are configured as second working surfaces. At least a portion of the second working surface near the working end is configured as an insulating region. Furthermore, the gripping ends of any two of the main bodies are configured to be connected via a base, and the two tweezer tips on the two interconnected main bodies are configured with the first working surfaces facing each other.

2. The combined bipolar electrocoagulation tweezers according to claim 1, characterized in that, The main body also includes a bending portion disposed between the gripping end and the working end, so that the gripping end is staggered relative to the working end along the length direction of the main body.

3. The combined bipolar electrocoagulation forceps according to claim 2, characterized in that, The main body also includes a limiting post disposed in the bent portion. The limiting post extends in a direction perpendicular to the side surface of the main body, and when any two main bodies are connected by the base, the limiting post is positioned opposite to each other.

4. The combined bipolar electrocoagulation tweezers according to claim 1, characterized in that, The second working surface also includes an electrode area, and the boundary between the electrode area and the insulating area is configured with a cross-sectional structure perpendicular to the surface of the tweezer tip.

5. The combined bipolar electrocoagulation tweezers according to claim 4, characterized in that, The area ratio of the electrode region relative to the second working surface is set to be greater than or equal to 30% of the second working surface.

6. The combined bipolar electrocoagulation tweezers according to claim 1, characterized in that, The insulating region is provided with multiple insulating layers along the radial direction of the tweezer tip, and the thickness of each of the multiple insulating layers is set to gradually decrease in the direction away from the surface of the tweezer tip.

7. The combined bipolar electrocoagulation tweezers according to claim 6, characterized in that, The outer surface of the insulating layer is uniformly provided with a corrugated texture, which is configured to spread and extend away from the working end.

8. The combined bipolar electrocoagulation tweezers according to claim 6, characterized in that, The multiple conical edges of the tweezers tip are configured with blunt rounded corners, and the conical edges between any two adjacent second working surfaces are provided with an insulating transition portion connected to the insulating layer.

9. The combined bipolar electrocoagulation forceps according to claim 8, characterized in that, The insulating areas of any two adjacent second working surfaces are configured to be continuously arranged on the same cross section of the tweezer tip, so that the insulating areas of different second working surfaces are relatively flush along the circumference of the tweezer tip.

10. The combined bipolar electrocoagulation tweezers according to claim 1, characterized in that, The tip of the tweezers is configured with a hook-shaped structure, and the tweezers tip is bent relative to each other when any two of the main bodies are connected.

11. The combined bipolar electrocoagulation tweezers according to claim 1, characterized in that, The material of the main body is set to hard metal or soft metal, wherein the main body set to soft metal is configured to be at least partially bent.

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