Electric coagulation forceps capable of electrically coagulating blood vessels with different diameters

Abstract

The utility model relates to the field of medical instruments, in particular to electric coagulation forceps capable of electrically coagulating blood vessels with different diameters. The blood vessel clamping electrode comprises an electrode holder and two forceps arms arranged on the electrode holder, clamping surfaces, used for clamping blood vessels, on forceps tips at the far ends of the forceps arms sequentially comprise a first clamping area, a second clamping area and a third clamping area from the far end to the near end, the clamping widths of the clamping areas are gradually decreased from the near end to the far end, and the clamping areas are used for clamping the blood vessels in different diameter ranges respectively. Insulating layers wrap the surfaces of the tweezers arms and the tweezers tips, wire grooves are formed in the inner side faces of the tweezers arms, and anti-skidding grooves are formed in the near-end holding portions of the tweezers arms. According to the electric coagulation forceps, the electric coagulation forceps can be matched with and electrically coagulate blood vessels with different diameters, meanwhile, damage of the forceps tips to surrounding tissue is reduced through reasonable design, electric coagulation energy is locked within the clamping range of the forceps tips and does not overflow, continuous, safe, effective and accurate electric coagulation can be achieved, and the refined operation effect is achieved.

Description

Technical Field

[0001] This application relates to the field of medical devices, and in particular to an electrocoagulation forceps that can electrocoagulate blood vessels of different diameters. Background Technology

[0002] In the field of surgical medicine, electrocoagulation forceps play a crucial role as an important surgical instrument in procedures such as hemostasis. With the continuous development of medical technology, the precision of surgeries is increasing, and the requirements for vascular management are also rising. Especially in some delicate surgeries, such as neurosurgery and hepatobiliary surgery, precise electrocoagulation hemostasis of blood vessels of different diameters is required to ensure the smooth progress of the surgery and the safety of the patient. Traditional electrocoagulation forceps meet the basic needs of surgery to a certain extent, but as the difficulty and precision of surgeries increase, their limitations are gradually becoming apparent.

[0003] Traditional electrocoagulation forceps typically use a single-shaped forceps tip design when handling blood vessels. For vessels of different diameters, healthcare professionals mainly rely on changing the size of the forceps to complete the procedure. When dealing with smaller diameter vessels, some traditional forceps may be reduced in size to attempt contact, but this may result in insufficient forceps strength or difficulty in accurate manipulation; others may attempt to adjust the current, but this often leads to current dispersion. For larger diameter vessels, electrocoagulation forceps with relatively larger tips are used.

[0004] Traditional electrocoagulation forceps have a single, limited tip design, making them suitable only for vessels within a specific diameter range. For smaller, delicate vessels, traditional forceps cannot effectively contact or disperse the current, resulting in inaccurate and ineffective electrocoagulation hemostasis. This limits the applicability of the procedure and makes it difficult to perform precise electrocoagulation on vessels ranging from ultra-fine to small and medium-sized vessels of varying diameters. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this application provides an electrocoagulation forceps that can electrocoagulate blood vessels of different diameters. The forceps can be adapted to and electrocoagulate blood vessels of different diameters. At the same time, through reasonable design, damage to surrounding tissues by the forceps tip is reduced, and the electrocoagulation energy is locked within the clamping range of the forceps tip without overflowing. This enables continuous, safe, effective and precise electrocoagulation, achieving refined surgical results.

[0006] This application is achieved through the following technical solution:

[0007] An electrocoagulation forceps for electrocoagulating blood vessels of different diameters includes an electrode base and two forceps arms disposed on the electrode base. Each forceps arm has a distal tip, and the forceps tip has a clamping surface for clamping blood vessels, which sequentially includes a first clamping area, a second clamping area, and a third clamping area from distal to proximal. The clamping widths of the first, second, and third clamping areas gradually decrease from proximal to distal. The first clamping area is used to clamp blood vessels with a diameter not greater than 0.3 mm, and its clamping width is not greater than 0.4 mm. The second clamping area is used to clamp blood vessels with a diameter in the range of 0.3–0.7 mm, and its clamping width is in the range of 0.4–0.8 mm. The third clamping area is used to clamp blood vessels with a diameter not less than 0.7 mm, and its clamping width is in the range of 0.8–1.3 mm.

[0008] By adopting the above technical solution, the electrocoagulation forceps have first, second, and third clamping zones of different widths on their clamping surfaces, which can respectively adapt to blood vessels with diameters no greater than 0.3 mm, 0.3–0.7 mm, and no less than 0.7 mm. There is a strict matching relationship between the effective clamping closure length of the electrocoagulation forceps and the blood vessel. This relationship determines the success rate and safety of hemostasis; the core ratio is closure length ≥ blood vessel diameter × (2–4) times. In this way, precise adaptation and effective clamping of blood vessels of different diameters can be achieved, enabling the electrocoagulation forceps to efficiently cover blood vessels of different diameters, from ultra-fine to small and medium-sized. Surgeons do not need to frequently change instruments of different specifications to complete rapid thermal coagulation of blood vessels of different diameters, significantly improving surgical efficiency. The special clamping zone structure also ensures that the current density is highly concentrated on the small target, achieving rapid and reliable hemostasis and avoiding repeated operations due to poor contact. Furthermore, different clamping zones can precisely act on blood vessels of corresponding diameters, avoiding unnecessary damage to surrounding healthy tissues and improving the safety and reliability of the surgery.

[0009] Optionally, the second clamping area has a trapezoidal structure.

[0010] By adopting the above technical solution, the second clamping area of ​​the forceps tip has a trapezoidal structure. This structural design allows the second clamping area to better adapt to blood vessels with a diameter in the range of 0.3 to 0.7 mm. Compared with other ordinary clamping areas, the trapezoidal structure can adjust the contact area and force according to the change of blood vessel diameter, thereby expanding the applicability of electrocoagulation forceps to blood vessels in this diameter range, further expanding the surgical indications of electrocoagulation forceps, and allowing electrocoagulation forceps to perform electrocoagulation operations on blood vessels in this diameter range more accurately and efficiently.

[0011] Optionally, the first clamping area is a semi-circular arc area formed at the distal end of the second clamping area.

[0012] By adopting the above technical solution, the first clamping area with a semi-circular arc shape is formed at the distal end of the second clamping area, which facilitates better contact with microvessels with a diameter of no more than 0.3 mm. This allows the current to be applied more precisely and concentratedly to these types of vessels, thereby achieving more reliable and effective electrocoagulation hemostasis for microvessels. This avoids the problems of poor coagulation effect or the need for repeated operations due to poor contact, and further improves the applicability and effectiveness of electrocoagulation forceps for electrocoagulation of vessels of different diameters, especially microvessels.

[0013] Optionally, the edge connection between the first clamping area and the second clamping area has a smooth structure.

[0014] By adopting the above technical solution, the transition between the first clamping area and the second clamping area is more natural, avoiding damage to blood vessels from sharp edges, and allowing current to be conducted more smoothly between the two clamping areas, further improving the electrocoagulation effect and reliability.

[0015] Optionally, the arc diameter of the first clamping area is equal to the width of the short side of the second clamping area.

[0016] By adopting the above technical solution, the transition between the first clamping area and the second clamping area is made smoother, and the structural design of the forceps tip is further optimized. It can more accurately adapt to blood vessels of different diameters, expand the electrocoagulation range for ultra-fine to small and medium-sized blood vessels, and help doctors operate more efficiently during surgery, thereby improving surgical efficiency.

[0017] Optionally, the axial length of the second clamping area is 1.5 to 2.5 mm.

[0018] By adopting the above technical solution, the axial length of the second clamping area is set in the range of 1.5 to 2.5 mm, which can more accurately adapt to blood vessels with a diameter in the range of 0.3 to 0.7 mm. This further enhances the electrocoagulation effect and operational stability of the electrocoagulation forceps on blood vessels in this diameter range, improves surgical efficiency, and expands the surgical indications.

[0019] Optionally, the axial length of the third clamping area is 3 to 6 mm.

[0020] By adopting the above technical solutions, electrocoagulation forceps can be better adapted to the electrocoagulation needs of blood vessels with different diameters, ensuring targeted, stable and effective electrocoagulation operations on different blood vessels with a diameter of not less than 0.7 mm, and further improving the precision and reliability of the surgery.

[0021] Optionally, the area of ​​the tweezers arm and the tweezers tip, excluding the clamping surface, is covered with an insulating layer.

[0022] By adopting the above technical solution, an insulating layer is wrapped around the area of ​​the forceps arm and tip, excluding the clamping surface. This effectively shields the current release from the non-working surface, avoiding accidental lateral thermal damage to surrounding healthy tissues or vital organs. This further expands the applicability of electrocoagulation forceps in different surgical scenarios. It can not only reduce lateral thermal damage in complex environments such as neurosurgery and hepatobiliary surgery, but also be applicable to more types of surgery, greatly improving surgical safety, reducing postoperative complications, and expanding surgical indications.

[0023] Optionally, the inner side of the tweezer arm is provided with a wire groove extending along the length direction, the wire groove being used to accommodate electrode leads.

[0024] By adopting the above technical solution, a wire groove extending along the length direction is set on the inner side of the forceps arm to accommodate the electrode leads. This not only prevents the electrode leads from shaking or getting tangled during the operation, making the arrangement of the electrode leads more regular and orderly, but also further expands the surgical operation space, reduces the interference of the electrode leads on the surgical operation, and improves the convenience and smoothness of the surgical operation.

[0025] Optionally, the proximal end of the tweezers arm is formed with a gripping portion, and the outer surface of the gripping portion is provided with several anti-slip grooves.

[0026] By adopting the above technical solution, an anti-slip groove is set on the outer surface of the proximal gripping part of the forceps arm, which can increase the friction when the doctor holds the electrocoagulation forceps, making the grip more stable and reliable, preventing the electrocoagulation forceps from slipping during the operation, and improving the safety and accuracy of the surgical operation.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] This application can adapt to the electrocoagulation needs of blood vessels of different diameters by using different clamping areas, avoiding the problem of incomplete or excessive electrocoagulation by single-size electrocoagulation forceps, and improving surgical results.

[0029] This application eliminates the need for frequent replacement of electrocoagulation forceps of different specifications, reducing surgical time and operational complexity, and improving surgical efficiency;

[0030] This application enables precise electrocoagulation of blood vessels of different diameters, which helps surgical procedures to develop in a more minimally invasive and precise direction, bringing patients a better treatment experience and prognosis. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural schematic diagram of an electrocoagulation forceps capable of electrocoagulating blood vessels of different diameters, as described in the embodiment.

[0032] Figure 2 This is a schematic diagram of the electrocoagulation tweezers without an insulating layer as described in the embodiment;

[0033] Figure 3 This is a partial enlarged view of the insulating layer covering the non-workpiece surface of the tweezers tip in the embodiment;

[0034] Figure 4 This is a magnified view of a portion of the tweezers tip without an insulating layer covering the non-workpiece surface, as described in the embodiment.

[0035] In the figure: 1. Tweezers arm; 11. Wire groove; 12. Grip part; 13. Anti-slip groove; 2. Tweezers tip; 21. Clamping surface; 211. First clamping area; 212. Second clamping area; 213. Third clamping area; 3. Insulating layer; 4. Electrode holder. Detailed Implementation

[0036] The following will be combined with the appendix Figure 1 and Figure 4 The technical solutions of the various embodiments of this application have been clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. Example 1

[0037] Reference Figures 1 to 3 This application discloses an electrocoagulation forceps capable of electrocoagulating blood vessels of different diameters, comprising an electrode base 4 and two forceps arms 1 disposed on the electrode base 4. The distal end of each forceps arm 1 is provided with a forceps tip 2. The forceps tip 2 has a clamping surface 21 for clamping blood vessels, which sequentially includes a first clamping area 211, a second clamping area 212, and a third clamping area 213 from distal to proximal. The clamping widths of the first clamping area 211, the second clamping area 212, and the third clamping area 213 gradually decrease from proximal to distal. The first clamping area 211 is used to clamp blood vessels with a diameter not exceeding 0.3 mm. The tube has a first clamping area 211 with a clamping width of no more than 0.4 mm; a second clamping area 212 is used to clamp blood vessels with a diameter in the range of 0.3 to 0.7 mm, and the clamping width of the second clamping area 212 is in the range of 0.4 to 0.8 mm; a third clamping area 213 is used to clamp blood vessels with a diameter of not less than 0.7 mm, and the clamping width of the third clamping area 213 is in the range of 0.8 to 1.3 mm; it should be noted that the dashed line in the attached figure represents the boundary line between the first clamping area 211, the second clamping area 212 and the third clamping area 213.

[0038] For details, please refer to Figure 1 and Figure 2The forceps arm 1 is a crucial component of the electrocoagulation forceps. It is typically made of metal, such as stainless steel or aluminum alloy, which possesses good conductivity and sufficient strength to prevent deformation during use. The forceps arm 1 is usually slender and rod-shaped, an ergonomic design for easy grip and operation. A wire groove 11 extending along the length of the forceps arm 1 is located on its inner side. This groove accommodates the electrode leads. The design of the wire groove 11 not only protects the electrode leads from damage during use but also makes the electrocoagulation forceps structure more compact and orderly. The electrode leads can be made of copper or aluminum, both of which have good conductivity. The shape of the wire groove 11 can vary, such as rectangular, semi-circular, or trapezoidal, as long as it can accommodate the electrode leads.

[0039] refer to Figure 1 and Figure 2 The grip 12 is located near the proximal end of the forceps arm 1, and its outer surface is provided with several anti-slip grooves 13. The anti-slip grooves 13 can be strip-shaped and evenly distributed on the outer surface of the grip 12. This design increases the friction when medical personnel hold the electrocoagulation forceps, preventing them from slipping during operation and improving the safety and accuracy of the operation. Replaceable features can include anti-slip structures such as granular protrusions. The wire groove 11 and the grip 12 are two indispensable parts of the forceps arm 1, together ensuring the normal use of the electrocoagulation forceps. The wire groove 11 ensures current transmission, and the grip 12 facilitates operation by medical personnel; the combination of the two makes the electrocoagulation forceps more reliable and convenient in actual use.

[0040] refer to Figure 1 and Figure 2 The forceps arms 1 and forceps tips 2, except for the gripping surface 21, are all covered with an insulating layer 3. The insulating layer 3 is made of nylon powder, which has excellent insulating properties and can effectively shield the current release from non-working surfaces. Replaceable features include ceramic coatings, which also have good insulating effects. The insulating layer 3 covering the corresponding surfaces acts like a protective coat for the electrocoagulation forceps. During surgery, even if the non-working surfaces of the forceps arms 1 or forceps tips 2 touch surrounding healthy tissue or vital organs, lateral thermal damage can be minimized, greatly improving the safety of the surgery.

[0041] refer to Figure 3 and Figure 4The forceps tip 2 is the part that directly contacts the blood vessel for electrocoagulation. Its material is typically metal, such as stainless steel, titanium alloy, or tungsten alloy. These materials have good conductivity and corrosion resistance, ensuring effective electrocoagulation and a long service life. The first gripping area 211 of the forceps tip 2 is a semi-circular arc region formed at the distal end of the second gripping area 212. This semi-circular arc design better conforms to the shape of small blood vessels, improving the gripping stability. It can also be designed as an elliptical arc region or other arc-shaped areas, achieving a similar effect of adapting to small blood vessels. The edge connection between the first gripping area 211 and the second gripping area 212 has a smooth structure, which avoids damage to the blood vessel during gripping, such as by using a smooth transition with a rounded edge. The arc diameter of the first gripping area 211 is equal to the width of the short side of the second gripping area 212. This design makes the transition between the first gripping area 211 and the second gripping area 212 more natural, improving the overall performance of the electrocoagulation forceps.

[0042] refer to Figure 3 and Figure 4 The second clamping area 212 has a trapezoidal structure. This structure allows its clamping width to transition smoothly along the axial direction, thus better accommodating medium-sized blood vessels with diameters ranging from 0.3 to 0.7 mm, achieving a progressive matching of contact area. The trapezoid can be designed as an isosceles trapezoid, a right trapezoid, etc., to further meet different intraoperative needs. The axial length of the second clamping area 212 is set at 1.5–2.5 mm. This range has dual design considerations: First, when clamping larger blood vessels and using the rear third clamping area 213, it ensures that the exposed conductive part at the tip of the forceps 2 does not exceed 2.5 mm, thereby concentrating and limiting current and heat energy to the target blood vessel area, effectively avoiding lateral thermal damage to adjacent important tissues; Second, a length of not less than 1.5 mm ensures that the forceps tip 2 has a sufficient visual section, facilitating clear observation and precise alignment of the blood vessel under the microscope by the surgeon. If the length is too short, it will lead to positioning difficulties, affecting clamping accuracy, and thus causing hemostasis failure.

[0043] refer to Figure 3 and Figure 4 The axial length of the third clamping area 213 is set to 3–6 mm. This longer design aims to provide sufficient clamping contact area and electrocoagulation zone for larger vessels with a diameter of at least 0.7 mm, ensuring a stable and reliable electrocoagulation effect. For example, for larger vessels, using a third clamping area 213 with a length of approximately 5 mm can significantly improve electrocoagulation efficiency. Simultaneously, this length range works in conjunction with the lengths of the first and second clamping areas 212 to ensure that the effective working length of the forceps tip 2 is reasonably constrained for any applicable vessel diameter, thereby meeting the overall requirements for thermal safety distance control.

[0044] The implementation principle of this embodiment is as follows: This electrocoagulation forceps, capable of electrocoagulating blood vessels of different diameters, features different clamping areas on the forceps tip 2. Each clamping area corresponds to a blood vessel with a different diameter range, enabling the electrocoagulation forceps to precisely perform electrocoagulation operations on blood vessels of different diameters. This avoids the problem of single-size electrocoagulation forceps being unable to adapt to blood vessels of different diameters, and also reduces the inconvenience of frequent changes when using combinations of different sizes of electrocoagulation forceps, thus improving surgical efficiency and electrocoagulation effect. Simultaneously, the design of the wire groove 11 within the forceps arm 1, the insulating layer 3 on the forceps arm 1 and the forceps tip 2, and the anti-slip groove 13 on the grip 12 further enhances the safety and ease of operation of the electrocoagulation forceps, representing a significant improvement and enhancement compared to existing technologies.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the technical solutions of the embodiments of this application.

Claims

1. An electrocoagulation forceps for electrocoagulating blood vessels of different diameters, comprising an electrode base (4) and two forceps arms (1) disposed on the electrode base (4), wherein the distal end of each forceps arm (1) is provided with a forceps tip (2), characterized in that, The clamping surface (21) on the forceps tip (2) for clamping blood vessels includes a first clamping area (211), a second clamping area (212), and a third clamping area (213) from the distal end to the proximal end. The clamping width of the first clamping area (211), the second clamping area (212), and the third clamping area (213) gradually decreases from the proximal end to the distal end. The first clamping area (211) is used to clamp blood vessels with a diameter not greater than 0.3 mm, and the clamping width of the first clamping area (211) is not greater than 0.4 mm. The second clamping area (212) is used to clamp blood vessels with a diameter in the range of 0.3 to 0.7 mm, and the clamping width of the second clamping area (212) is in the range of 0.4 to 0.8 mm. The third clamping area (213) is used to clamp blood vessels with a diameter not less than 0.7 mm, and the clamping width of the third clamping area (213) is in the range of 0.8 to 1.3 mm.

2. The electrocoagulation forceps for electrocoagulating blood vessels of different diameters according to claim 1, characterized in that, The second clamping area (212) has a trapezoidal structure.

3. The electrocoagulation forceps for electrocoagulating blood vessels of different diameters according to claim 2, characterized in that, The first clamping area (211) is a semi-circular arc area formed at the far end of the second clamping area (212).

4. The electrocoagulation forceps for electrocoagulating blood vessels of different diameters according to claim 3, characterized in that, The edge connection between the first clamping area (211) and the second clamping area (212) has a smooth structure.

5. The electrocoagulation forceps for electrocoagulating blood vessels of different diameters according to claim 3, characterized in that, The arc diameter of the first clamping area (211) is equal to the width of the short side of the second clamping area (212).

6. The electrocoagulation forceps for electrocoagulating blood vessels of different diameters according to claim 1, characterized in that, The axial length of the second clamping area (212) is 1.5 to 2.5 mm.

7. The electrocoagulation forceps for electrocoagulating blood vessels of different diameters according to claim 1, characterized in that, The axial length of the third clamping area (213) is 3 to 6 mm.

8. The electrocoagulation forceps according to claim 1, capable of electrocoagulating blood vessels of different diameters, is characterized in that, The areas of the tweezer arms (1) and the tweezer tips (2), except for the clamping surface (21), are covered with an insulating layer (3).

9. The electrocoagulation forceps for electrocoagulating blood vessels of different diameters according to claim 1, characterized in that, The inner side of the tweezer arm (1) is provided with a wire groove (11) extending along the length direction, and the wire groove (11) is used to accommodate electrode leads.

10. The electrocoagulation forceps according to claim 1, capable of electrocoagulating blood vessels of different diameters, is characterized in that, The proximal end of the tweezer arm (1) is formed with a gripping part (12), and the outer surface of the gripping part (12) is provided with several anti-slip grooves (13).

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