Tool for attaching and detaching an electrosurgical tool cover and tool cover assembly for a surgical instrument

Abstract

This application provides a tool for attaching and detaching an electrosurgical tool cover and a tool cover assembly for surgical instruments. The tool includes a clamping body. The clamping body has an inner surface that engages with the electrosurgical tool cover, and a force-applying part is provided on the inner surface. The force-applying part has a first force-applying surface, which intersects with the axial direction of the tool to engage with the electrosurgical tool cover in the axial direction of the tool. According to the tool for attaching and detaching an electrosurgical tool cover of this application, when attaching or detaching the electrosurgical tool cover, the first force-applying surface of the force-applying part engages with the electrosurgical tool cover, thereby allowing the clamping body to exert a force on the electrosurgical tool cover in the axial direction. This axial force assists in the attachment and detachment of the electrosurgical tool cover, reducing the operational difficulty of attaching and detaching the electrosurgical tool cover.

Description

Technical Field

[0001] This application relates generally to the technical field of medical devices, and more specifically to a tool for attaching and detaching an electrosurgical tool cover and a tool cover assembly for surgical instruments. Background Technology

[0002] Currently, certain types of electrosurgical instruments, such as bipolar scissors, require the use of an insulating tool cover. An electrosurgical tool cover, positioned on the end effector of an electrosurgical instrument, prevents current from being conducted from the end effector to the patient, thus preventing electrocautery of the patient in non-treatment locations.

[0003] Electrosurgical tool covers are generally assembled and disassembled using tools. However, when the manufacturing tolerance of the electrosurgical tool cover is small, the electrosurgical tool cover fits tightly with the end effector of the surgical instrument, making disassembly difficult. Summary of the Invention

[0004] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This summary section is not intended to limit the key and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] To at least partially solve the above problems, a first aspect of this application provides an assembly / disassembly tool for an electrosurgical tool cover, the assembly / disassembly tool including a clamping body having an inner surface that engages with the electrosurgical tool cover, a force-applying portion being provided on the inner surface, the force-applying portion having a first force-applying surface intersecting the axial direction of the assembly / disassembly tool to engage with the electrosurgical tool cover in the axial direction of the assembly / disassembly tool.

[0006] According to the electrosurgical tool cover assembly and disassembly tool of the first aspect of this application, when assembling or disassembling the electrosurgical tool cover, the first force-acting surface of the force-acting part engages with the electrosurgical tool cover, thereby enabling the clamping body to exert force on the electrosurgical tool cover in the axial direction, using the axial force to assist in the assembly and disassembly of the electrosurgical tool cover, reducing the operational difficulty of assembling or disassembling the electrosurgical tool cover.

[0007] Optionally, the force-applying part is a protrusion to engage with a groove on the electrosurgical tool cover; or

[0008] The force-applying part is a groove to engage with a protrusion on the electrosurgical tool cover.

[0009] Optionally, the force-applying part has a second force-applying surface, which is arranged with the first force-applying surface along the axial direction. The first force-applying surface engages with the electrosurgical tool cover from one side of the axial direction of the assembly / disassembly tool, and the second force-applying surface intersects with the axial direction of the assembly / disassembly tool to engage with the electrosurgical tool cover from the other side of the force-applying part along the axial direction.

[0010] Optionally, a plurality of force-applying parts are provided on the inner surface, and the plurality of force-applying parts are arranged at intervals around the circumferential direction of the clamping body; or

[0011] The inner surface is provided with a plurality of force-applying parts, which are arranged around the axial direction of the clamping body; or

[0012] The force-applying part extends continuously along the entire length of the clamping body in the circumferential direction.

[0013] Optionally, the assembly / disassembly tool further includes a friction-enhancing layer disposed on the inner surface, the material of which is different from the material of the clamping body.

[0014] Optionally, the material of the friction-enhancing layer is selected from gauze, non-woven fabric, polycarbonate, acrylonitrile-butadiene-styrene plastic and nylon.

[0015] Optionally, the material of the friction enhancement layer has wear resistance, and / or the material hardness of the friction enhancement layer is greater than the material hardness of the clamping body.

[0016] Optionally, the inner surface is provided with microstructures, the microstructures causing the roughness of the inner surface to be from 0.05 mm to 0.4 mm.

[0017] A second aspect of this application provides a tool for attaching and detaching an electrosurgical tool cover. The tool includes a clamping body having an inner surface that engages with the electrosurgical tool cover. A friction-enhancing layer is provided on the inner surface, and the material of the friction-enhancing layer is different from the material of the clamping body.

[0018] According to the second aspect of this application, the friction-enhancing layer provided on the inner surface of the clamping body of the electrosurgical tool cover assembly tool increases the friction between the assembly tool and the electrosurgical tool cover, thereby reducing the difficulty of assembling and disassembling the electrosurgical tool cover.

[0019] Optionally, the material of the friction-enhancing layer is selected from gauze, non-woven fabric, polycarbonate, acrylonitrile-butadiene-styrene plastic and nylon.

[0020] Optionally, the material of the friction enhancement layer has wear resistance, and / or the hardness of the material of the friction enhancement layer is greater than the hardness of the material of the clamping body.

[0021] Optionally, the inner surface is provided with a microstructure, the microstructure giving the inner surface a roughness of 0.05 mm to 0.4 mm, and the friction-enhancing layer is disposed on the microstructure.

[0022] A third aspect of this application provides an electrosurgical tool cover assembly for a surgical instrument, comprising:

[0023] Electrosurgical tool cover; and

[0024] Based on the above-mentioned assembly and disassembly tools;

[0025] The electrosurgical tool cover has a force receiving portion on its outer surface. The force receiving portion has a first force receiving surface, which intersects with the axial direction of the tool to engage with the first force acting surface in the axial direction of the tool.

[0026] The third aspect of this application provides an electrosurgical tool cover assembly for an easy-to-operate surgical instrument. Attached Figure Description

[0027] The following drawings, illustrating embodiments of this application, are incorporated herein by reference and are used to understand this application. The drawings illustrate embodiments of this application and their descriptions, serving to explain the principles of this application. In the drawings,

[0028] Figure 1 A perspective view of an electrosurgical tool cover assembly of a surgical instrument according to some embodiments of this application;

[0029] Figure 2 A perspective view of the tools for attaching and detaching an electrosurgical tool cover according to some embodiments of this application;

[0030] Figure 3 A perspective view of an electrosurgical tool cover for some embodiments of this application;

[0031] Figure 4 A perspective view of an electrosurgical tool cover assembly of a surgical instrument according to some other embodiments of this application;

[0032] Figure 5 A perspective view of the tool for attaching and detaching an electrosurgical tool cover according to some other embodiments of this application;

[0033] Figure 6 This is a perspective view of an electrosurgical tool cover for some further embodiments of this application;

[0034] Figure 7A perspective view of the tool for attaching and detaching an electrosurgical tool cover according to further embodiments of this application; and

[0035] Figure 8 This is a perspective view of the tool for attaching and detaching an electrosurgical tool cover according to some other embodiments of this application. Detailed Implementation

[0036] In the following description, numerous specific details are set forth to provide a more thorough understanding of this application. However, it will be apparent to those skilled in the art that embodiments of this application may be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described to avoid confusion with embodiments of this application.

[0037] In this document, ordinal numbers such as “first” and “second” used in this application are merely identifiers and do not have any other meaning, such as a specific order. Moreover, for example, the term “first component” does not imply the existence of a “second component”, and the term “second component” does not imply the existence of a “first component”.

[0038] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0039] In this document, terms such as “equal” and “same” are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.

[0040] Unless otherwise stated, the numerical ranges in this document include not only the entire range within its two endpoints, but also the subranges contained therein.

[0041] Please refer to Figure 1 Some embodiments of this application provide an electrosurgical tool cover assembly for a surgical instrument 120, including an electrosurgical tool cover 110 and an installation / removal tool 100 for removing and installing the electrosurgical tool cover 110.

[0042] Specific combination Figure 2As shown, the assembly / disassembly tool 100 includes a clamping body 101. The clamping body 101 has a cut 139 that extends through the clamping body 101 along its axial direction X, allowing the clamping body 101 to deform outwards from the cut 139 and fit onto the electrosurgical tool cover 110. The clamping body 101 has an inner surface 102 that engages with the electrosurgical tool cover 110, and a force-applying portion 103 is provided on the inner surface 102. The force-applying portion 103 has a first force-applying surface 104 that intersects with the axial direction X of the assembly / disassembly tool 100 to engage with the electrosurgical tool cover 110 in the axial direction X of the assembly / disassembly tool 100. Optionally, the first force-applying surface 104 is perpendicular to the axial direction X of the assembly / disassembly tool 100. When installing or removing the electrosurgical tool cover, the first force application surface 104 engages with the electrosurgical tool cover 110, thereby allowing the clamping body 101 to exert a force (push or pull) on the electrosurgical tool cover 110 along the axial direction X. The axial force is used to assist in the installation and removal of the electrosurgical tool cover, reducing the difficulty of the operation of installing and removing the electrosurgical tool cover.

[0043] Optionally, the first force application surface 104 can apply a thrust to the electrosurgical tool cover 110 along the axial direction X. Correspondingly, refer to Figure 3 A force receiving portion 111 is provided on the outer surface of the electrosurgical tool cover 110. The force receiving portion 111 has a first force receiving surface 112, which intersects with the axial direction X of the assembly / disassembly tool 100 to engage with the first force application surface 104 in the axial direction X of the assembly / disassembly tool 100. When the electrosurgical tool cover 110 is engaged with the assembly / disassembly tool 100, the first force receiving surface 112 engages with the first force application surface 104 at its distal end B to receive the disassembly thrust toward the distal end B. The axial force assists in the disassembly of the electrosurgical tool cover, reducing the operational difficulty of disassembling the electrosurgical tool cover. Even with small manufacturing tolerances, the electrosurgical tool cover is easy to disassemble.

[0044] Optionally, the force-applying part 103 is constructed as a protrusion. The first force-applying surface 104 is located on the outer sidewall of the distal end B of the protrusion. The force-receiving part 111 is configured as a groove on the outer surface of the electrosurgical tool cover 110, and the first force-receiving surface 112 is located on the inner sidewall of the distal end B of the groove. The protrusion of the tool 100 can mate with the groove on the electrosurgical tool cover 110, and the thrust is transmitted to the first force-receiving surface 112 through the first force-applying surface 104, using axial force to assist in the disassembly of the electrosurgical tool cover 110.

[0045] As an alternative (not shown), the force-applying part 103 can also be configured as a groove to engage with a protrusion on the corresponding electrosurgical tool cover 110. A first force-applying surface 104 is located on the inner wall of the distal end B of the groove, and a first force-receiving surface 112 is located on the outer wall of the distal end B of the protrusion. When the electrosurgical tool cover 110 is engaged with the assembly / disassembly tool 100, the first force-receiving surface 112 engages with the first force-applying surface 104 at its proximal end A.

[0046] Optionally, refer to Figure 2 and Figure 3 To apply tension to the electrosurgical tool cover 110 during installation, the force-applying part 103 may have a second force-applying surface 105. Correspondingly, the force-receiving part 111 also has a second force-receiving surface 113, which intersects the axial direction X of the tool 100 to engage with the second force-applying surface 105 in the axial direction X of the tool 100. Specifically, the second force-receiving surface 113 is located on the inner wall of the proximal end A of the groove. When the electrosurgical tool cover 110 is engaged with the tool 100, the second force-receiving surface 113 engages with the proximal end A of the second force-applying surface 105.

[0047] The second force-applying surface 105 and the first force-applying surface 104 are arranged along the axial direction X. When the electrosurgical tool cover 110 is installed or removed using the installation and removal tool 100, the first force-applying surface 104 engages with the electrosurgical tool cover 110 from one side (proximal end A) of the installation and removal tool 100 along the axial direction X, and the second force-applying surface 105 intersects with the installation and removal tool 100 along the axial direction X to engage with the electrosurgical tool cover 110 from the other side (distal end B) of the installation and removal tool 100 along the axial direction X. With the above arrangement, when installing the electrosurgical tool cover 110, the force-applying part 103 transmits a pulling force to the electrosurgical tool cover 110 through the second force-applying surface 105, thereby allowing the electrosurgical tool cover 110 to be fitted onto the surgical instrument 120. When removing the electrosurgical tool cover 110, the force-applying part 103 transmits a pushing force to the electrosurgical tool cover 110 through the first force-applying surface 104, thereby allowing the electrosurgical tool cover 110 to detach from the surgical instrument 120.

[0048] Reference Figure 2 and Figure 3Optionally, a plurality of force-applying parts 103 are provided on the inner surface 102, and the plurality of force-applying parts 103 are arranged at intervals around the circumferential direction D of the clamping body 101. Correspondingly, the electrosurgical tool cover 110 is provided with a plurality of force-receiving parts 111, and the plurality of force-receiving parts 111 are arranged at intervals along the circumferential direction of the electrosurgical tool cover 110. When the tool 100 is assembling or disassembling the electrosurgical tool cover 110, each force-applying part 103 is embedded in the force-receiving part 111 in a one-to-one correspondence, thereby further enhancing the stability of the tool 100 in assembling or disassembling the electrosurgical tool cover 110.

[0049] Optionally, the inner surface 102 may also be provided with multiple force-applying parts 103, which are arranged along the axial direction X of the clamping body 101. Correspondingly, the electrosurgical tool cover 110 is provided with multiple force-receiving parts 111, which are arranged at intervals along the axial direction of the electrosurgical tool cover 110. When the tool 100 is assembling or disassembling the electrosurgical tool cover 110, each force-applying part 103 is embedded into the force-receiving part 111 in a one-to-one correspondence, thereby further enhancing the stability of the tool 100 in assembling or disassembling the electrosurgical tool cover 110.

[0050] Figure 4 An electrosurgical tool cover assembly for a surgical instrument 120 according to some other embodiments is disclosed. Optionally, force-applying portions 103 extend continuously along the entire length of the clamping body 101 in the circumferential direction D, and a plurality of force-applying portions 103 are arranged in the axial direction X of the clamping body 101. The clamping body 101 has a cut 139 that penetrates the clamping body 101 along the axial direction X, thereby allowing the clamping body 101 to be deformed outward from the cut 139 and fitted onto the electrosurgical tool cover 110.

[0051] Correspondingly, such as Figure 6 As shown, the groove of the electrosurgical tool cover 110 extends continuously along its entire circumferential direction. When the clamping body 101 is fitted onto the electrosurgical tool cover 110, the force-applying part 103 is embedded in the groove, thereby enabling the clamping body 101 to transmit force to the electrosurgical tool cover 110 at various positions along its own circumferential direction D.

[0052] Optionally, such as Figure 5 and Figure 6As shown, the inner surface 102 may also be provided with multiple force-applying parts 103, which are arranged along the axial direction X of the clamping body 101. Correspondingly, the electrosurgical tool cover 110 is provided with multiple grooves, which are spaced apart along the axial direction of the electrosurgical tool cover 110. When the tool 100 is installing or removing the electrosurgical tool cover 110, each force-applying part 103 is embedded into the groove in a corresponding manner, thereby further enhancing the stability of the tool 100 in installing or removing the electrosurgical tool cover 110.

[0053] Figure 7 A tool 100 for attaching and detaching an electrosurgical tool cover 110 according to some further embodiments is disclosed. The tool 100 may further include a friction-enhancing layer 306 disposed on an inner surface 102. The main body material of the tool 100, i.e., the material of the clamping body 101 (e.g., silicone), and the material of the friction-enhancing layer 306, are different from the material of the clamping body 101, and are used to enhance the friction of the inner surface 102 of the clamping body 101. In other words, the friction between the friction-enhancing layer 306 and the electrosurgical tool cover 110 is greater than the friction between the inner surface 102 of the clamping body 101 and the electrosurgical tool cover 110. Therefore, by providing the friction-enhancing layer 306, the stability of attaching and detaching the electrosurgical tool cover 110 by the tool 100 can be further improved.

[0054] Furthermore, the friction-enhancing layer 306 is made of a wear-resistant material, which can improve the service life of the assembly / disassembly tool 100. Alternatively, the friction-enhancing layer 306 has a higher hardness than the clamping body 101, which can further reduce wear on the assembly / disassembly tool 100 under long-term use and improve its service life.

[0055] In detail, the friction-enhancing layer 306 is made of a material selected from gauze, non-woven fabric, polycarbonate, acrylonitrile-butadiene-styrene plastic and nylon, thereby enhancing the friction between the inner surface 102 and the outer surface of the electrosurgical tool cover 110.

[0056] The inventors found that gauze performed better in this application. The reason for this is likely that gauze is hydrophilic and has a high affinity for hydrophilic silicone (such as the clamping body 101, which is made of hydrophilic silicone). Whether through adhesive bonding or integral molding, the friction-enhancing layer 306 exhibits good affinity and high connection strength with the clamping body 101. Furthermore, the melting point of gauze is higher than its molding temperature, facilitating integral molding with silicone materials and making it suitable for connecting the friction-enhancing layer 306 to the clamping body 101. In addition, gauze has good wear resistance, specifically its high hardness, allowing for repeated use and thus extending the service life of the assembly / disassembly tool 100.

[0057] The friction enhancement layer 306 can be directly bonded to the clamping body 101, which can reduce manufacturing costs while ensuring connection strength.

[0058] Optionally, the friction enhancement layer 306 can also be pre-set on the mold core, and then silicone material is injected through injection molding to form the clamping body 101, so that the friction enhancement layer 306 and the clamping body 101 are integrally formed, resulting in high structural strength.

[0059] Optionally, the inner surface 102 is provided with microstructures, which make the roughness of the inner surface 102 greater than 0.05 mm. This ensures the friction between the inner surface 102 and the outer surface of the electrosurgical tool cover 110, improving the stability of the assembly and disassembly of the electrosurgical tool cover 110 by the assembly / disassembly tool 100. Furthermore, the microstructures make the roughness of the inner surface 102 range from 0.05 mm to 0.4 mm, ensuring both the friction between the inner surface 102 and the outer surface of the electrosurgical tool cover 110 and preventing the clamping body 101 from being difficult to detach from the electrosurgical tool cover 110. Specifically, the microstructures can be formed on the inner surface 102 of the clamping body 101 by providing concave-convex structures, toothed structures, or threaded structures on the mold core of the injection-molded clamping body 101. The microstructures can also be formed by etching or machining.

[0060] It is understandable that the inner surface 102 can also be provided with both microstructures and friction enhancement layer 306, thereby enhancing the bonding force between friction enhancement layer 306 and inner surface 102.

[0061] Furthermore, the outer surface of the clamping body 101 may also be provided with the friction-enhancing layer 306 described above to increase the friction between the user's hand and the tool 100, facilitating operation. Conversely, the outer surface of the clamping body 101 may also be provided with the microstructure described above to further enhance the bonding force between the friction-enhancing layer 306 and the outer surface of the clamping body 101.

[0062] In the electrosurgical tool cover assembly of the surgical instrument 120 according to some of the embodiments described above, the force application part 103 and the force receiving part 111 can be formed by various processes.

[0063] For example, the force-applying part 103 (when constructed as a boss) is connected to the inner surface 102 of the clamping body 101 by adhesive bonding or welding. Correspondingly, the force-receiving part 111 (when constructed as a groove) is formed on the outer surface of the electrosurgical tool cover 110 by machining holes. The positions of the force-applying part 103 and the force-receiving part 111 can be flexibly adjusted as needed. In this way, the force-applying part 103 and the clamping body 101 can be made of different materials, which increases the flexibility of the manufacturing process.

[0064] For example, the force-applying part 103 (when constructed as a boss) can also be formed on the inner surface 102 of the clamping body 101 by die casting. Correspondingly, the force-receiving part 111 (when constructed as a groove) is also formed on the outer surface of the electrosurgical tool cover 110 by die casting. The force-applying part 103 and the force-receiving part 111 formed in this way have high bonding strength and low manufacturing cost. It is understood that the force-applying part 103 can be constructed of the same material as the clamping body 101, which is convenient for processing and molding.

[0065] Furthermore, the force-applying part 103 should have high hardness so that it is not easily deformed when it mates with the force-receiving part 111, thereby improving the stability of the assembly and disassembly of the electrosurgical tool cover 110 by the assembly / disassembly tool 100. The force-receiving part 111 (when it is constructed as a groove) should not be too large or too small. The size of the force-receiving part 111 should be slightly larger than that of the force-applying part 103, so that the force-applying part 103 can be easily embedded into the force-receiving part 111 without causing the connection between the force-receiving part 111 to be weak.

[0066] Figure 8 A tool 100 for attaching and detaching an electrosurgical tool cover 110 according to some other embodiments is shown. The tool 100 includes a clamping body 101 having an inner surface 102 that engages with the electrosurgical tool cover 110. A friction-enhancing layer 306 is provided on the inner surface 102, and the material of the friction-enhancing layer 306 is different from that of the clamping body 101. Because of the friction-enhancing layer 306 provided on the inner surface 102 of the clamping body 101, the friction between the tool 100 and the electrosurgical tool cover 110 is increased, thereby improving the success rate of attaching and detaching the tool 100 and reducing the operational difficulty of the tool 100.

[0067] It is understood that the friction-enhancing layer 306 of the tool 100 for attaching and removing an electrosurgical tool cover 110 according to other embodiments may be constructed identically to the friction-enhancing layer 306 of the embodiments described above. In the tool 100 for attaching and removing an electrosurgical tool cover 110 according to these embodiments, the clamping body 101 provides a connection force with the electrosurgical tool cover 110 by relying on the friction-enhancing layer 306, thereby ensuring the stability of the tool 100 in attaching and removing the electrosurgical tool cover 110.

[0068] For example, the friction between the friction-enhancing layer 306 and the electrosurgical tool cover 110 is greater than the friction between the inner surface 102 of the clamping body 101 and the electrosurgical tool cover 110, thereby enhancing the friction of the inner surface 102 of the clamping body 101. Alternatively, the material of the friction-enhancing layer 306 is wear-resistant, thereby increasing the service life of the assembly / disassembly tool 100. Furthermore, the hardness of the material of the friction-enhancing layer 306 is greater than the hardness of the material of the clamping body 101, thereby further reducing wear on the assembly / disassembly tool 100 under long-term use.

[0069] For example, the friction-enhancing layer 306 is made of a material selected from gauze, nonwoven fabric, polycarbonate, acrylonitrile-butadiene-styrene plastic and nylon, thereby enhancing the friction between the inner surface 102 and the electrosurgical tool cover 110.

[0070] Regarding the connection between the friction enhancement layer 306 and the clamping body 101, the friction enhancement layer 306 can be directly bonded to the clamping body 101, which can reduce manufacturing costs while ensuring connection strength. Alternatively, the friction enhancement layer 306 can be pre-set on the mold core, and then silicone material can be injected through injection molding to form the clamping body 101, so that the friction enhancement layer 306 and the clamping body 101 are integrally formed.

[0071] Similarly, in the tool 100 for attaching and detaching an electrosurgical tool cover 110 according to some other embodiments, the inner surface 102 of the clamping body 101 may also be provided with microstructures.

[0072] The microstructure ensures that the roughness of the inner surface 102 is greater than 0.05 mm, thereby guaranteeing the friction between the inner surface 102 and the outer surface of the electrosurgical tool cover 110 and improving the stability of the assembly and disassembly of the electrosurgical tool cover 110 by the assembly / disassembly tool 100. Furthermore, the microstructure further ensures that the roughness of the inner surface 102 is within the range of 0.05 mm to 0.4 mm, which not only guarantees the friction between the inner surface 102 and the outer surface of the electrosurgical tool cover 110 but also facilitates the separation of the clamping body 101 from the electrosurgical tool cover 110. Specifically, the microstructure can be formed on the inner surface 102 of the clamping body 101 by setting concave-convex structures, toothed structures, or threaded structures on the mold core of the injection-molded clamping body 101.

[0073] It is understandable that the inner surface 102 can also be provided with both microstructures and friction enhancement layer 306, thereby enhancing the bonding force between the friction enhancement layer 306 and the inner surface 102. The microstructures can also be formed by etching or machining.

[0074] Furthermore, the outer surface of the clamping body 101 may also be provided with the friction-enhancing layer 306 described above to increase the friction between the user's hand and the tool 100, facilitating operation. Conversely, the outer surface of the clamping body 101 may also be provided with the microstructure described above to further enhance the bonding force between the friction-enhancing layer 306 and the outer surface of the clamping body 101.

[0075] Similarly, the friction enhancement layer 306 and microstructure according to the above embodiments can also be applied to the outer surface of the electrosurgical tool cover 110, and can also enhance the friction between the electrosurgical tool cover 110 and the inner surface 102 of the clamping body 101, thereby improving the stability of the assembly and disassembly of the electrosurgical tool cover 110 by the assembly and disassembly tool 100.

[0076] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this application. Terms such as “setup” appearing herein can refer to either a component being directly attached to another component or a component being attached to another component via an intermediary. A feature described in one embodiment herein may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0077] This application has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this application to the described embodiments. Those skilled in the art will understand that many more variations and modifications can be made based on the teachings of this application, and all such variations and modifications fall within the scope of protection claimed in this application.

Claims

1. A tool for attaching and detaching an electrosurgical tool cover, characterized in that, The assembly / disassembly tool includes a clamping body having an inner surface that engages with the electrosurgical tool cover. A force-applying portion is provided on the inner surface, and the force-applying portion has a first force-applying surface that intersects with the axial direction of the assembly / disassembly tool to engage with the electrosurgical tool cover in the axial direction of the assembly / disassembly tool.

2. The tool for assembling and disassembling the electrosurgical tool cover according to claim 1, characterized in that, The force-applying part is a protrusion to engage with a groove on the electrosurgical tool cover; or The force-applying part is a groove to engage with a protrusion on the electrosurgical tool cover.

3. The tool for attaching and detaching the electrosurgical tool cover according to claim 1 or 2, characterized in that, The force-applying part has a second force-applying surface, which is arranged along the axial direction with the first force-applying surface. The first force-applying surface engages with the electrosurgical tool cover from one side of the axial direction of the assembly / disassembly tool, and the second force-applying surface intersects with the axial direction of the assembly / disassembly tool to engage with the electrosurgical tool cover from the other side of the force-applying part along the axial direction.

4. The tool for assembling and disassembling the electrosurgical tool cover according to claim 2, characterized in that, Multiple force-applying parts are provided on the inner surface, and the multiple force-applying parts are arranged at intervals around the circumferential direction of the clamping body; or The inner surface is provided with a plurality of force-applying parts, which are arranged around the axial direction of the clamping body; or The force-applying part extends continuously along the entire length of the clamping body in the circumferential direction.

5. The tool for attaching and detaching an electrosurgical tool cover according to any one of claims 1 to 4, characterized in that, The assembly / disassembly tool also includes a friction-enhancing layer disposed on the inner surface, the material of which is different from the material of the clamping body.

6. The tool for attaching and detaching the electrosurgical tool cover according to claim 5, characterized in that, The material of the friction-enhancing layer is selected from one of the following: gauze, non-woven fabric, polycarbonate, acrylonitrile-butadiene-styrene plastic, and nylon.

7. The tool for attaching and detaching the electrosurgical tool cover according to claim 5, characterized in that, The material of the friction enhancement layer is wear-resistant, and / or the hardness of the material of the friction enhancement layer is greater than the hardness of the material of the clamping body.

8. The tool for attaching and detaching an electrosurgical tool cover according to any one of claims 1 to 4, characterized in that, The inner surface is provided with microstructures, which give the inner surface a roughness of 0.05 mm to 0.4 mm.

9. A tool for assembling and disassembling an electrosurgical tool cover, characterized in that, The assembly / disassembly tool includes a clamping body having an inner surface that engages with the electrosurgical tool cover. A friction-enhancing layer is provided on the inner surface, and the material of the friction-enhancing layer is different from that of the clamping body.

10. The tool for attaching and detaching the electrosurgical tool cover according to claim 9, characterized in that, The material of the friction-enhancing layer is selected from one of the following: gauze, non-woven fabric, polycarbonate, acrylonitrile-butadiene-styrene plastic, and nylon.

11. The tool for attaching and detaching the electrosurgical tool cover according to claim 9, characterized in that, The material of the friction enhancement layer is wear-resistant, and / or the hardness of the material of the friction enhancement layer is greater than the hardness of the material of the clamping body.

12. The tool for attaching and detaching the electrosurgical tool cover according to claim 11, characterized in that, The inner surface is provided with a microstructure, which makes the roughness of the inner surface 0.05 mm to 0.4 mm, and the friction enhancement layer is disposed on the microstructure.

13. An electrosurgical tool cover assembly for a surgical instrument, characterized in that, include: Electrosurgical tool cover; as well as The assembly / disassembly tool according to any one of claims 1 to 8; The electrosurgical tool cover has a force receiving portion on its outer surface. The force receiving portion has a first force receiving surface, which intersects with the axial direction of the tool to engage with the first force acting surface in the axial direction of the tool.

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