Surgical instrument replacement assembly and surgical instrument

Abstract

The application provides a surgical instrument replacement assembly and a surgical instrument, and particularly relates to the technical field of medical instruments. The application provides a surgical instrument replacement assembly, which comprises: an instrument seat arranged at an execution end of a surgical instrument; an execution member, a connecting end of the execution member is inserted into the instrument seat, and the outer side of the execution member is detachably sleeved with a limiting ring; a locking member, which is movably sleeved on the outer side of the limiting ring and is detachably connected with the instrument seat; when the locking member is fixed with the instrument seat, the limiting ring is fixed with the execution member, the first end of the limiting ring abuts against the locking member, and the second end of the limiting ring abuts against the instrument seat. The surgical instrument replacement assembly can expand the applicability and functionality of the surgical instrument and reduce the cost of minimally invasive surgery.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a surgical instrument replacement component and a surgical instrument. Background Technology

[0002] Compared to traditional surgical methods, minimally invasive surgery offers advantages such as less trauma, less pain, and faster recovery. In minimally invasive surgery, surgical instruments work in conjunction with surgical robots to improve efficiency. Electroablation instruments include surgical hooks and electric spatulas. Electric hooks use their actuators to lift tissue, achieving tissue separation and hemostasis. Electric spatulas use their actuators to remove or separate tissue, providing a large area of ​​hemostasis. However, the limited functionality of instruments like electric hooks and spatulas increases the cost of minimally invasive surgery. Utility Model Content

[0003] In view of the above problems, this application provides a surgical instrument replacement component and a surgical instrument, which can solve the technical problem of the single function of surgical instruments.

[0004] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0005] In a first aspect, this application provides a surgical instrument replacement assembly, comprising:

[0006] Instrument holder, located at the actuating end of surgical instruments;

[0007] The actuator has a connecting end that plugs into the instrument base, and a limit ring is detachably sleeved on the outer side of the actuator.

[0008] The locking element is movably sleeved on the outside of the limiting ring, and the locking element is detachably connected to the instrument base;

[0009] When the locking element is fixed to the instrument base, the limiting ring is fixed to the actuator. The first end of the limiting ring abuts against the locking element, and the second end of the limiting ring abuts against the instrument base.

[0010] The surgical instrument replacement assembly provided in this application allows the actuator to move along the insertion direction, thereby being pulled out of the instrument base for easy replacement. The locking element is detachably connected to the instrument base, allowing the actuator to be disassembled. When the locking element is fixed to the instrument base, a limiting ring abuts against both the locking element and the instrument base, completely securing the actuator and completing its replacement and fixation. The surgical instrument replacement assembly allows for the replacement of the actuator, enabling it to perform different functions, thereby expanding the applicability and functionality of surgical instruments and ultimately reducing the cost of minimally invasive surgery.

[0011] In some embodiments of this application, the locking member is provided with a receiving groove and a communicating hole, the communicating hole being disposed at the bottom of the receiving groove, and the communicating hole enabling the receiving groove to communicate with the outside of the locking member;

[0012] The limiting ring is located inside the receiving groove, and the first end of the limiting ring abuts against the bottom of the receiving groove.

[0013] This design prevents damage to the limit ring and improves its stability.

[0014] In some embodiments of this application, the outer wall of the actuator is provided with a protruding limiting portion;

[0015] The limiting part has a limiting surface that abuts against the first end of the limiting ring to restrict the movement of the limiting ring toward the free end of the actuator.

[0016] This design ensures the correct installation position of the limiting ring during the installation process of the actuator, allowing the locking element to be fixedly connected to the instrument base after contact with the limiting ring. Furthermore, the limiting element improves the stability of the limiting ring during surgical procedures, preventing it from moving due to external forces or vibrations, thereby enhancing the operational precision of the surgical instruments.

[0017] In some embodiments of this application, the limiting portion has an outer peripheral surface, and the outer peripheral surface of the limiting portion is adjacent to the limiting surface of the limiting portion;

[0018] The outer peripheral surface of the limiting part fits against the wall of the connecting hole.

[0019] This prevents foreign objects from entering the surgical instrument replacement assembly through the limiting part, thereby reducing the possibility of bacterial growth after foreign objects enter.

[0020] In some embodiments of this application, the instrument seat is provided with a mounting groove, the opening of which faces the actuator;

[0021] The connecting end of the actuator is provided with a connecting part, which is configured to cooperate with the mounting groove and is inserted into the mounting groove.

[0022] This design enhances the stability of the connection between the actuator and the instrument base, preventing the actuator from detaching during operation due to vibration or external force. Furthermore, the connection between the connector and the mounting slot improves assembly efficiency, simplifies the assembly process, and increases the speed of surgical instrument preparation.

[0023] In some embodiments of this application, the instrument seat is provided with at least one abutment portion, which protrudes from the wall of a portion of the mounting groove;

[0024] The actuator is provided with at least one clearance portion, which is located at the end of the connecting end of the actuator and is formed by a recess in the outer wall of a portion of the connecting portion;

[0025] When the locking part is fixed to the instrument seat, the abutting part abuts against the clearance part.

[0026] This design prevents the actuator from rotating circumferentially during surgical procedures, thus improving its stability.

[0027] In some embodiments of this application, the second end of the limiting ring is flush with the opening of the mounting groove.

[0028] This ensures that the limiting ring will not shift during the surgical procedure, thereby enhancing the stability of the actuator.

[0029] In some embodiments of this application, the locking member is provided with a receiving groove, and the inner sidewall of the receiving groove is provided with a first fastening part;

[0030] The instrument seat is provided with a mounting groove, and a second fastening part is provided on the outer circumferential surface of the groove wall. The second fastening part and the first fastening part are detachably connected.

[0031] This configuration improves the efficiency of assembling and disassembling the locking mechanism and instrument holder, increases the speed of changing the actuator, and thus improves the preparation speed of surgical instruments.

[0032] In some embodiments of this application, the actuator is configured as one of an electric shovel head, an electric hook head, an electric knife head, and an electric needle head.

[0033] By configuring actuators with different functions and connecting actuators with instrument seats, surgical instruments can be adapted to various surgical operation requirements, thereby improving the applicability of surgical instruments.

[0034] Secondly, this application provides a surgical instrument, including the surgical instrument replacement component as described above.

[0035] Surgical instruments can improve the efficiency of surgical procedures.

[0036] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions as described above, other technical problems that this application can solve, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the structure of the surgical instrument replacement assembly provided in the embodiments of this application;

[0039] Figure 2 A schematic diagram of the surgical instrument replacement assembly without locking elements provided in an embodiment of this application;

[0040] Figure 3 A full sectional view of the surgical instrument replacement assembly provided in the embodiments of this application;

[0041] Figure 4 A full sectional view of the locking component provided in the embodiments of this application;

[0042] Figure 5 A schematic diagram of the structure of the executable provided in the embodiments of this application;

[0043] Figure 6 A full sectional view of the executable provided in the embodiments of this application;

[0044] Figure 7 This is a schematic diagram of the structure of the instrument holder provided in the embodiments of this application;

[0045] Figure 8 This is a full sectional view of the instrument holder provided in the embodiments of this application.

[0046] Figure label:

[0047] 100 - Surgical instrument replacement kit;

[0048] 110-Instrument Seat;

[0049] 111-Mounting slot; 112-Abutting part; 113-Second fastening part;

[0050] 120 - Execution Item;

[0051] 121-Limiting part; 122-Connecting part; 123-Allowing part;

[0052] 130 - Limiting ring;

[0053] 140 - Locking element;

[0054] 141-Receiving groove; 142-Connecting hole; 143-First fastening part. Detailed Implementation

[0055] Among related technologies, minimally invasive surgery has advantages over traditional surgical methods, such as less trauma, less pain, and faster recovery. However, because minimally invasive surgery is limited by the size of the incision, it increases the difficulty of the surgical procedure.

[0056] In minimally invasive surgery, surgical instruments work in conjunction with surgical robots to improve efficiency. For example, surgical instruments include electroablation devices, commonly including electric hooks and electric spatulas. Electric hooks lift tissue with their ablation ends to achieve tissue separation and hemostasis. Electric spatulas remove or separate tissue with their ablation ends, providing a large area of ​​hemostasis. However, the limited functionality of electric hooks and electric spatulas increases the cost of minimally invasive surgery.

[0057] To address the aforementioned problems, this application provides a surgical instrument replacement assembly. The instrument seat of the replacement assembly is mounted on the actuating end of a surgical instrument. The connecting end of the actuating component is inserted into the instrument seat, and the actuating component can move along the insertion direction to be pulled out of the instrument seat, facilitating replacement. A limiting ring on the outer side of the actuating component is detachably connected to it, and a locking member is movably fitted onto the outer side of the limiting ring. The locking member is detachably connected to the instrument seat, facilitating disassembly of the actuating component. When the locking member is fixed to the instrument seat, the first end of the limiting ring abuts against the locking member, and the second end of the limiting ring abuts against the instrument seat, ensuring complete fixation of the actuating component after insertion, thus completing the replacement and fixation of the actuating component. The surgical instrument replacement assembly allows for the replacement of the actuating component, enabling the assembly to perform different functions, thereby expanding the applicability and functionality of surgical instruments and reducing the cost of minimally invasive surgery.

[0058] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0059] This application provides a surgical instrument. Various surgical procedures can be performed using this instrument. For example, the surgical instrument can be used in conjunction with a laparoscopic surgical robot in minimally invasive surgery for procedures such as cutting, dissecting, and electrocoagulating hemostasis of human tissue, thereby improving the efficiency and safety of surgical procedures.

[0060] Surgical instruments include surgical instrument replacement components. These replacement components are used in surgical instruments, particularly in monopolar ablation instruments. Examples include ablation instruments such as electric hook ablation instruments and electric shovel ablation instruments.

[0061] A monopolar electroablation instrument is constructed by connecting the ablation device to the positive terminal of a high-frequency generator. The negative terminal of the high-frequency generator is electrically connected to a conductive negative plate, which is typically positioned below and in contact with the surgical subject. This creates a complete current path. The electroablation instrument generates a high-frequency current, which is used to perform surgical procedures such as cutting and coagulation. This design prevents the human body from touching the electroablation instrument, thus preventing electric shock and potential health risks.

[0062] Combination Figure 1 , Figure 2 and Figure 3 As shown, the surgical instrument replacement assembly 100 includes an instrument base 110, which is disposed at the actuating end (the end that operates on human tissue) of the surgical instrument. The instrument base 110 allows the actuating end of the surgical instrument to be securely connected to the surgical instrument replacement assembly 100, ensuring the stability of the surgical instrument during use. Furthermore, by controlling the rotation of the instrument base 110, the position of the surgical instrument replacement assembly 100 can be adjusted to meet the position adjustment needs during surgery.

[0063] For example, the instrument base 110 can be made of stainless steel, thereby improving the durability and service life of the instrument base 110.

[0064] The surgical instrument replacement assembly 100 includes an actuator 120. The actuator 120 has opposing free ends and connecting ends. The free end of the actuator 120 is used to contact human tissue. The connecting end of the actuator 120 is used to connect to an instrument base 110. The connecting end of the actuator 120 can be configured as a round rod structure to facilitate the machining and installation of the actuator 120.

[0065] For example, the actuator 120 can be made of stainless steel, which can improve the durability and service life of the actuator 120.

[0066] The connecting end of the actuator 120 is inserted into the instrument base 110, so that the actuator 120 and the instrument base 110 can be installed and removed to improve the applicability of the surgical instrument.

[0067] The actuator 120 is configured as one of an electric spatula head, an electric hook head, an electric scalpel head, or an electric needle head. The free end of the electric spatula head has a flat or slightly curved structure, which can be used for the separation and dissection of human tissue, facilitating insertion between tissue layers. The free end of the electric hook head has a hook-shaped or curved structure, used for traction, fixation, or movement of tissue. The free end of the electric scalpel head has a sharp edge, capable of precisely cutting tissue. The free end of the electric needle head has a slender, needle-like structure, capable of penetrating deep into tissue for precise manipulation.

[0068] Furthermore, the connecting ends of the electric shovel head, electric hook head, electric knife head, and electric needle head can be configured with the same structure to facilitate insertion with the instrument base 110.

[0069] Each actuator 120 has a different function, and each actuator 120 with a different function is connected to the instrument base 110, so that the surgical instrument can adapt to a variety of surgical operation requirements, thereby improving the applicability of the surgical instrument.

[0070] In some possible implementations, the connecting end of the actuator 120 is plugged into the instrument base 110, which is connected to the positive terminal of the high-frequency generator. This allows hemostasis to be performed through the free end of the actuator 120.

[0071] The actuator 120 is provided with a limit ring 130, which is used to assist in fixing the actuator 120 to the instrument base 110. The limit ring 130 can be made of stainless steel, which can improve the durability and service life of the limit ring 130.

[0072] The limiting ring 130 is sleeved on the outside of the actuator 120, and the limiting ring 130 and the actuator 120 are detachably connected.

[0073] For example, the limiting ring 130 can be connected to the actuator 120 via threads, which is convenient for installation and allows the limiting ring 130 to be disassembled. In this case, the actuator 120 can be machined with a relief groove to prevent the machining of threads on the entire actuator 120, thereby ensuring that the threads are in the machining position of the actuator 120.

[0074] For example, the limiting ring 130 can be fixedly connected to the actuator 120 by welding process to improve the stability of the connection between the limiting ring 130 and the actuator 120.

[0075] The surgical instrument replacement assembly 100 includes a locking element 140 for securing the limiting ring 130, thereby fixing the actuator 120 to the instrument seat 110.

[0076] In some possible implementations, in order to increase the stability of the locking member 140 fixing the limiting ring 130, a rubber pad can be added between the limiting ring 130 and the locking member 140, thereby increasing the friction between the locking member 140 and the limiting ring 130, which can prevent the locking member 140 from rotating and loosening.

[0077] In some possible implementations, when the actuator 120 is replaced, the free end of the actuator 120 has an irregular shape, making it impossible to remove the limiting ring 130 and the locking member 140. Sequentially removing the limiting ring 130 and the locking member 140 from the connecting end of the actuator 120 facilitates their removal and allows them to be reused, thereby reducing the replacement cost of the surgical instrument replacement assembly 100.

[0078] In some other possible implementations, when the actuator 120 is replaced, the free end of the actuator 120 has an irregular shape, making it impossible to remove the limiting ring 130 and the locking member 140. Since the limiting ring 130 is fixedly connected to the actuator 120, the limiting ring 130 and the locking member 140 cannot be detached from the connecting end of the actuator 120. When replacing the actuator 120, only the actuator 120, the limiting ring 130, and the locking member 140 need to be replaced; no additional disassembly operation is required, which can improve the replacement speed of the actuator 120.

[0079] The locking element 140 is movably sleeved on the outside of the limiting ring 130, and the locking element 140 is detachably connected to the instrument base 110. This arrangement facilitates the detachment of the locking element 140 from the instrument base 110, thereby facilitating the replacement of the surgical instrument replacement assembly 100 with actuators 120 of different functions.

[0080] When the locking member 140 is fixed to the instrument base 110, the first end of the limiting ring 130 abuts against the locking member 140 and the second end of the limiting ring 130 abuts against the instrument base 110, so that after the actuator 120 is inserted into the instrument base 110, the actuator 120 is completely fixed, thus completing the replacement and fixing of the actuator 120.

[0081] The surgical instrument replacement assembly 100 replaces the actuator 120, enabling the surgical instrument replacement assembly 100 to have different functions, thereby expanding the applicability and functionality of the surgical instruments and reducing the cost of minimally invasive surgery.

[0082] The structure of each component will be described in detail below.

[0083] Reference Figure 4 As shown, the locking member 140 is provided with a receiving groove 141, which is used to fix and receive the limiting ring 130, so that the limiting ring 130 remains stable during operation.

[0084] A connecting hole 142 is provided at the bottom of the receiving groove 141. The connecting hole 142 connects the receiving groove 141 with the outside of the locking member 140, so that the actuator 120 passes through the connecting hole 142 through the locking member 140, which facilitates the assembly of the locking member 140.

[0085] When the actuator 120 is fixed to the instrument seat 110, the limiting ring 130 is located within the receiving groove 141, which can prevent damage to the limiting ring 130. The end face of the first end of the limiting ring 130 abuts against the bottom surface of the receiving groove 141 to improve the stability of the limiting ring 130.

[0086] Specifically, the bottom surface of the receiving groove 141 can be set as a plane so that the end face of the first end of the limiting ring 130 abuts against the bottom of the receiving groove 141, thereby improving the fit between the limiting ring 130 and the receiving groove 141.

[0087] In some possible implementations, the outer peripheral surface of the limiting ring 130 can be fitted against the wall of the receiving groove 141, so that the limiting ring 130 and the locking member 140 are tightly fitted, preventing the limiting ring 130 from wobbling slightly when the surgical instrument vibrates, thereby ensuring the stability of the actuator 120.

[0088] Reference Figure 5 and Figure 6 As shown, the outer wall of the actuator 120 is provided with a protruding limiting portion 121. The limiting portion 121 has a limiting surface that abuts against the end face of the first end of the limiting ring 130 to restrict the movement of the limiting ring 130 toward the free end of the actuator 120. This arrangement ensures the installation position of the limiting ring 130 after it is installed with the actuator 120, allowing the locking member 140 to be fixedly connected to the instrument base 110 after it abuts against the limiting ring 130. In addition, the limiting portion 121 can improve the stability of the limiting ring 130 during surgical operations, preventing it from moving due to external forces or vibrations, thereby improving the operational accuracy of the surgical instruments.

[0089] For example, the limiting ring 130 and the actuator 120 can be connected by threads. The limiting part 121 can restrict the position of the limiting ring 130, thereby restricting the movement of the limiting ring 130 toward the free end of the actuator 120.

[0090] For example, when the limiting ring 130 and the actuator 120 are connected by a welding process, the limiting part 121 can restrict the movement of the limiting ring 130 toward the free end of the actuator 120, so as to facilitate the implementation of the welding operation.

[0091] In some possible implementations, the limiting portion 121 has an outer peripheral surface, which is the outer surface surrounding the limiting portion 121. The outer peripheral surface of the limiting portion 121 is adjacent to the limiting surface of the limiting portion 121.

[0092] The outer peripheral surface of the limiting part 121 fits against the wall of the connecting hole 142, so that the limiting part 121 and the connecting hole 142 are in close contact. This can prevent foreign objects from entering the surgical instrument replacement assembly 100 from the limiting part 121, thereby reducing the possibility of bacterial growth caused by foreign objects and meeting the hygiene standards of surgical instruments.

[0093] Reference Figure 7 and Figure 8 As shown, the instrument base 110 is provided with a mounting groove 111, the opening of which faces the actuator 120. The mounting groove 111 is used to accommodate and fix the actuator 120, ensuring the stability of the actuator 120.

[0094] Combination Figures 4-8 As shown, the connecting end of the actuator 120 is provided with a connecting portion 122, which is configured to cooperate with the mounting groove 111. The connecting portion 122 is inserted into the mounting groove 111 to enhance the stability of the connection between the actuator 120 and the instrument base 110 and prevent the actuator 120 from falling off due to vibration or external force during operation. In addition, the connection between the connecting portion 122 and the mounting groove 111 helps to improve the assembly efficiency of the insertion, simplify the assembly process, and increase the preparation speed of surgical instruments.

[0095] For example, the shape of the receiving groove 141 can be set to circular from the opening to the bottom of the groove. The receiving groove 141 with a circular cross-section is convenient for machining. The connecting part 122 of the actuator 120 can be set as a round rod, which is convenient for machining and installation of the actuator 120, and can reduce machining difficulty and machining cost.

[0096] For example, the shape of the receiving groove 141 can be set to rectangular from the opening to the bottom of the groove. The receiving groove 141 with a rectangular cross-section cooperates with the connecting part 122 to prevent the actuator 120 from rotating circumferentially, thereby ensuring the safety of the surgical operation.

[0097] For example, the shape of the receiving groove 141 can be set as a cross-shaped structure from the opening to the bottom of the groove. Similarly, a receiving groove 141 with a cross-shaped cross section can ensure the safety of surgical procedures.

[0098] The second end of the limiting ring 130 abuts against the instrument base 110, and the second end of the limiting ring 130 is flush with the opening of the mounting groove 111. That is, the end face of the second end of the limiting ring 130 abuts against the plane at the opening of the mounting groove 111 on the instrument base 110, thereby ensuring that the limiting ring 130 will not be displaced during the surgical operation, thus enhancing the stability of the actuator 120.

[0099] Continue to combine Figures 4-8 As shown, the instrument base 110 is provided with at least one abutment portion 112, which protrudes from the groove wall of a portion of the mounting groove 111. By removing part of the material in the mounting groove 111, the abutment portion 112 can be machined, thereby improving the machining efficiency of the instrument base 110 and reducing the machining difficulty of the instrument base 110.

[0100] The actuator 120 is provided with at least one clearance portion 123, which is located at the end of the connecting end of the actuator 120. The clearance portion 123 is formed by a recess in the outer wall of a portion of the connecting portion 122. By removing part of the material from the connecting portion 122, the processing efficiency of the actuator 120 is improved and the processing difficulty of the actuator 120 is reduced.

[0101] When the locking member 140 is fixed to the instrument seat 110, the abutting part 112 abuts against the clearance part 123 to prevent the actuator 120 from rotating circumferentially during the surgical operation and to improve the stability of the actuator 120.

[0102] For example, two abutting parts 112 are provided, each abutting part 112 having an abutting surface. Two clearance parts 123 are provided, each clearance part 123 having a clearance surface. By abutting the abutting surface and the clearance surface, rotation of the actuator 120 can be prevented, thereby improving the stability of the actuator 120 during surgical operations.

[0103] In some possible implementations, the inner wall of the receiving groove 141 is provided with a first fastening part 143. For example, the first fastening part 143 can be configured as a slot, a snap, a thread, or other structure.

[0104] The outer circumferential surface of the mounting groove 111 is provided with a second fastening part 113. This prevents the second fastening part 113 from separating from the mounting groove 111 along the axial direction of the mounting groove 111, thereby reducing the installation space occupied and improving compactness. For example, the second fastening part 113 can be configured as a slot, a snap, a thread, or other similar structure.

[0105] The second fastening part 113 and the first fastening part 143 are detachably connected to improve the assembly and disassembly efficiency of the locking member 140 and the instrument seat 110, and to increase the replacement speed of the actuator 120, thereby increasing the preparation speed of surgical instruments.

[0106] For example, the first fastening part 143 is configured with a first thread, which extends helically from the opening to the bottom of the receiving groove 141. The second fastening part 113 is configured with a second thread, which extends helically from the opening to the bottom of the mounting groove 111. The first thread and the second thread have the same direction of rotation, and the length of the first thread is greater than the length of the second thread. By engaging the first thread and the second thread, the second fastening part 113 and the first fastening part 143 are detachably connected.

[0107] Alternatively, the first fastening part 143 can be configured as a resilient snap-fit, with multiple snap-fits spaced apart on the inner wall of the receiving groove 141. The second fastening part 113 can be configured as a slot, corresponding to the resilient snap-fits, and the slot is located on the outer circumferential surface of the groove wall of the mounting groove 111. By engaging the resilient snap-fits with the slot, the assembly and disassembly efficiency of the locking member 140 and the instrument base 110 can be improved.

[0108] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0109] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0110] 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 scope of the technical solutions of the embodiments of this application.

Claims

1. A surgical instrument replacement assembly, characterized in that, include: Instrument holder (110) is located at the execution end of the surgical instrument; An actuator (120) is provided, the connecting end of which is inserted into the instrument base (110), and a limit ring (130) is detachably sleeved on the outer side of the actuator (120). A locking element (140) is movably sleeved on the outside of the limiting ring (130), and the locking element (140) is detachably connected to the instrument seat (110); When the locking member (140) is fixed to the instrument seat (110), the limiting ring (130) is fixed to the actuator (120), the first end of the limiting ring (130) abuts against the locking member (140), and the second end of the limiting ring (130) abuts against the instrument seat (110).

2. The surgical instrument replacement assembly according to claim 1, characterized in that, The locking member (140) is provided with a receiving groove (141) and a communicating hole (142). The communicating hole (142) is located at the bottom of the receiving groove (141) and the communicating hole (142) allows the receiving groove (141) to communicate with the outside of the locking member (140). The limiting ring (130) is located inside the receiving groove (141), and the first end of the limiting ring (130) abuts against the bottom of the receiving groove (141).

3. The surgical instrument replacement assembly according to claim 2, characterized in that, The outer wall of the actuator (120) is provided with a protruding limiting part (121); The limiting part (121) has a limiting surface that can abut against the first end of the limiting ring (130) to restrict the movement of the limiting ring (130) toward the free end of the actuator (120).

4. The surgical instrument replacement assembly according to claim 3, characterized in that, The limiting part (121) has an outer peripheral surface, and the outer peripheral surface of the limiting part (121) is adjacent to the limiting surface of the limiting part (121); The outer peripheral surface of the limiting part (121) can fit against the wall of the connecting hole (142).

5. The surgical instrument replacement assembly according to claim 1, characterized in that, The instrument base (110) is provided with a mounting groove (111), and the opening of the mounting groove (111) faces the actuator (120); The connecting end of the actuator (120) is provided with a connecting part (122), which is configured to cooperate with the mounting groove (111) and is inserted into the mounting groove (111).

6. The surgical instrument replacement assembly according to claim 5, characterized in that, The instrument base (110) is provided with at least one abutment (112), which protrudes from part of the groove wall of the mounting groove (111); The actuator (120) is provided with at least one clearance portion (123), which is located at the end of the connecting end of the actuator (120), and the clearance portion (123) is formed by a partial recess of the outer wall of the connecting portion (122); When the locking member (140) is fixed to the instrument seat (110), the abutting part (112) abuts against the clearance part (123).

7. The surgical instrument replacement assembly according to claim 5, characterized in that, The second end of the limiting ring (130) is flush with the opening of the mounting groove (111).

8. The surgical instrument replacement assembly according to any one of claims 1-7, characterized in that, The locking member (140) is provided with a receiving groove (141), and the inner sidewall of the receiving groove (141) is provided with a first fastening part (143); The instrument seat (110) is provided with a mounting groove (111), and a second fastening part (113) is provided on the outer peripheral surface of the groove wall of the mounting groove (111). The second fastening part (113) and the first fastening part (143) are detachably connected.

9. The surgical instrument replacement assembly according to any one of claims 1-7, characterized in that, The actuator (120) is configured as one of an electric shovel head, an electric hook head, an electric knife head, or an electric needle head.

10. A surgical instrument, characterized in that, Includes the surgical instrument replacement assembly (100) as described in any one of claims 1-9.

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