Integrated drive module, operating handle and surgical instrument

Abstract

The application discloses an integrated driving module, an operating handle and a surgical instrument, and relates to the field of medical instruments.The integrated driving module comprises a base, a first driving assembly and an opening and closing driving assembly.The base comprises a cylinder support part, an opening and closing support part and a mounting part.A passage for accommodating a driving end of a surgical instrument is arranged in the cylinder support part.The first driving assembly and the opening and closing driving assembly are connected with the driving end in a matched mode.The first driving assembly is connected with the cylinder support part and is used for driving a first driving pipe of the driving end to slide along the axial direction of the passage under the action of an external force.The opening and closing support part is arranged outside the cylinder support part.The opening and closing driving assembly is hinged with the opening and closing support part and is used for driving an opening and closing driving rod of the driving end to slide along the axial direction of the passage under the action of an external force.The mounting part is arranged outside the cylinder support part and is used for assembling and connecting with a handle shell of the surgical instrument.The application has the advantages of high strength, low cost and high precision.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an integrated drive module, operating handle, and surgical instruments. Background Technology

[0002] In laparoscopic surgery, various handheld medical instruments, such as grasping forceps and dissecting forceps, are frequently used. These handheld medical instruments are inserted into the abdomen through small-diameter tubes or trocars inserted into small incisions in the skin.

[0003] During the surgery, medical staff manipulate handheld medical devices outside the patient's body to control the actions of the actuators inserted into the patient's body.

[0004] Operating handles are frequently used to improve the ease of manipulating surgical instruments, but the overall strength of operating handles in related technologies is poor, making them prone to deformation during use, which in turn affects the quality of surgery. Summary of the Invention

[0005] This invention aims to address one of the technical problems in related technologies to a certain extent. To this end, this invention provides an integrated drive module, operating handle, and surgical instruments, which simplifies the component structure, provides high strength and ease of manufacturing, and improves operational accuracy.

[0006] To achieve the above objectives, a first aspect of the present invention discloses an integrated drive module for surgical instruments, the integrated drive module comprising a base, a first drive assembly, and an opening / closing drive assembly.

[0007] The base includes a cylindrical support, an opening and closing support, and a mounting part. The cylindrical support has a channel for accommodating the drive end of a surgical instrument. The first drive assembly and the opening and closing drive assembly are respectively connected to the drive end.

[0008] The first driving assembly is connected to the cylinder support and is used to drive the first driving tube at the driving end to slide along the axial direction of the channel when subjected to external force.

[0009] The opening and closing support is disposed on the outside of the cylindrical support. The opening and closing drive assembly is hinged to the opening and closing support and is used to drive the opening and closing drive rod at the drive end to slide along the axial direction of the channel when subjected to external force. The mounting part is disposed on the outside of the cylindrical support and is used to assemble and connect with the handle shell of the surgical instrument.

[0010] Furthermore, the opening and closing support includes a first support and a second support. The first support and the second support are respectively disposed on both sides of the cylindrical support in the axial direction, and the opening and closing drive assembly is hinged to the first support and the second support respectively.

[0011] Furthermore, the second support portion and the mounting portion are located on the same side of the cylindrical support portion, and the first support portion and the mounting portion are respectively formed with connection structures for assembly and connection with the handle housing;

[0012] And / or, a protruding positioning post is formed on the second support portion, the positioning post being used to cooperate with the locking mechanism of the surgical instrument.

[0013] Furthermore, the first support includes a connecting section and a bearing section. The first end of the connecting section is connected to the outer wall of the cylindrical support. The bearing section is disposed at the second end of the connecting section. A gap is formed between the bearing section and the cylindrical support. The opening and closing drive assembly is hinged to the bearing section. The bearing section and the connecting section are respectively provided with connection structures for assembly and connection with the handle housing.

[0014] And / or, the first support portion is disposed in the middle of the cylindrical support portion, and the second support portion is disposed at the rear end of the cylindrical support portion.

[0015] Furthermore, the opening and closing drive assembly includes a handle and a transmission mechanism. One end of the transmission mechanism is hinged to the second support portion, and one end of the handle is hinged to the first support portion and can rotate relative to the first support portion. The handle is used to drive the transmission mechanism to rotate relative to the second support portion.

[0016] Furthermore, the transmission mechanism includes an opening and closing drive unit, which is disposed on the rear side of the cylindrical support unit and is opposite to the channel along the axial direction. The rotation of the handle relative to the base can drive the opening and closing drive unit to move closer to or away from the channel along the axial direction of the channel.

[0017] Furthermore, the opening and closing support portion and the mounting portion are respectively provided with connection structures for assembly and connection with the handle housing;

[0018] And / or, the integrated drive module further includes a fixing sleeve that is assembled and connected to the front end of the cylindrical support, the fixing sleeve being used to limit the axial position of the first drive assembly.

[0019] Furthermore, the cylindrical support portion includes a first cylindrical body and a second cylindrical body connected together, the first driving component is rotatably sleeved on the outer wall surface of the first cylindrical body, and the opening and closing support portion and the mounting portion are both connected to the second cylindrical body.

[0020] The integrated drive module also includes a fixing sleeve that is assembled and connected to the first cylinder. The second cylinder and the fixing sleeve both protrude from the outer wall surface of the first cylinder. The two ends of the first drive assembly are axially limited to the fixing sleeve and the second cylinder.

[0021] Furthermore, the integrated drive module also includes an axial limiting sleeve fitted between the fixed sleeve and the first drive component, the axial limiting sleeve protruding from the outer wall surface of the first cylinder; a connecting platform is formed on the outer surface of the axial limiting sleeve, and a connecting structure is provided on the connecting platform.

[0022] Furthermore, the first driving assembly includes a rotary drive component and a drive pin. The inner wall of the rotary drive component is formed with a helical groove, and the side wall of the cylindrical support portion is formed with a sliding groove corresponding to the helical groove. One end of the drive pin is inserted into the helical groove, and the other end of the drive pin extends through the sliding groove into the channel and is used to connect with the drive end in the channel. The drive pin can move relative to the side wall of the helical groove when the rotary drive component rotates around its own axis, so as to drive the drive end of the surgical instrument to move along the axial direction of the channel.

[0023] Furthermore, the integrated drive module also includes a third drive assembly for rotating the drive end of the surgical instrument. The third drive assembly includes a knob and a rotating sleeve with one end fixedly connected to the knob. The other end of the rotating sleeve is sleeved inside the cylindrical support and rotatably connected to the cylindrical support. The central cavity of the rotating sleeve communicates with the channel. The rotating sleeve is used to be fixedly connected to the drive end of the surgical instrument.

[0024] Furthermore, the rotary drive component includes an operating cylinder and a transmission cylinder. The transmission cylinder is sleeved on the first cylinder body, and both ends of the transmission cylinder abut against the axial limiting sleeve and the second cylinder body, respectively. The operating cylinder is sleeved outside the transmission cylinder and fixedly connected to the transmission cylinder. The rotation of the operating cylinder around its own axis can drive the transmission cylinder to rotate.

[0025] Furthermore, the integrated drive module also includes a third drive component, which includes a knob and a rotating sleeve. The rotating sleeve is rotatably disposed at the front end of the base. The knob is fixedly connected to the rotating sleeve. The central cavity of the rotating sleeve communicates with the channel. The rotating sleeve is used to be fixedly connected to the drive end of a surgical instrument placed in the channel. The rotation of the knob around its own axis can drive the surgical instrument to rotate as a whole around the axis of the channel.

[0026] A second aspect of the present invention discloses an operating handle for a surgical instrument, including a handle housing with a receiving cavity formed therein. The operating handle also includes an integrated drive module from the first aspect. The base is disposed in the receiving cavity and connected to the handle housing via the mounting portion. A guide portion is provided on the inner wall of the handle housing. The guide portion is movably connected to the opening and closing drive assembly and is used to guide the movement path of the opening and closing drive assembly.

[0027] Furthermore, the operating handle also includes a locking mechanism for cooperating with the opening and closing drive assembly. The locking mechanism includes an elastic element and a locking drive element. The locking drive element is throttle-connected to the opening and closing drive assembly. One end of the elastic element is limitedly connected to the opening and closing support portion, and the other end of the elastic element is limitedly connected to the locking drive element.

[0028] And / or, a protruding reinforcing rib is formed on the inner wall of the handle housing, the reinforcing rib is provided with a receiving portion that matches the base, the base is fitted into the receiving portion, and the guide portion is provided on the reinforcing rib.

[0029] A third aspect of the present invention discloses a surgical instrument, including a forceps head assembly, a forceps head drive assembly, and an operating handle. The operating handle adopts the operating handle of the second aspect. The forceps head drive assembly includes a first drive tube and an opening / closing drive rod that are sleeved together. The first drive tube is throttle-connected to the first drive assembly, and the opening / closing drive rod is throttle-connected to the opening / closing drive assembly.

[0030] Furthermore, the clamp head drive assembly also includes an outer sleeve, which is sleeved on the outside of the first drive tube. The integrated drive module also includes a third drive assembly, which includes a knob and a rotating sleeve with one end fixedly connected to the knob. The rotating sleeve is fixedly connected to the outer sleeve.

[0031] The integrated drive module in this technical solution integrates multiple different drive components and can be independently modularized and designed as a whole. During assembly, it can be pre-assembled independently of other modules of the surgical instrument and can be debugged separately. Moreover, during the assembly of the whole machine, it is not affected by the installation of other external accessories, which is conducive to maintaining accuracy and mass production. In addition, multiple integrated drive modules are installed on the base, making the base the main load-bearing component, which can avoid accuracy problems caused by deformation of the handle shell and improve the overall strength.

[0032] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. The preferred embodiments or means of the present invention will be shown in detail in conjunction with the accompanying drawings, but this is not intended to limit the technical solutions of the present invention. In addition, each of these features, elements and components appearing in the following text and drawings is a plurality of, and different symbols or numbers are used for convenience of representation, but all represent parts with the same or similar construction or function. Attached Figure Description

[0033] The present invention will be further described below with reference to the accompanying drawings:

[0034] Figure 1 This is a structural diagram of an integrated drive module according to one embodiment of the present invention;

[0035] Figure 2 This is a side cross-sectional view of an integrated drive module according to one embodiment of the present invention;

[0036] Figure 3 This is a base structure diagram of one embodiment of the present invention;

[0037] Figure 4 This is a structural diagram of the transmission cylinder according to one embodiment of the present invention;

[0038] Figure 5 This is a cross-sectional view of the assembly structure of the sliding sleeve, the eccentric ring, and the eccentric locking component according to one embodiment of the present invention;

[0039] Figure 6 This is a cross-sectional view of the rotating sleeve, locking nut, and fixing sleeve structure according to one embodiment of the present invention;

[0040] Figure 7 This is an overall view of the clamp head assembly assembled into a module according to one embodiment of the present invention;

[0041] Figure 8 This is a schematic diagram of the assembly process according to one embodiment of the present invention;

[0042] Figure 9 This is a schematic diagram of the assembly process according to one embodiment of the present invention;

[0043] Figure 10 This is a front sectional view of the operating handle according to one embodiment of the present invention;

[0044] Figure 11 This is a partial structural diagram of the locking mechanism according to one embodiment of the present invention;

[0045] Figure 12 This is a diagram of the second housing structure according to one embodiment of the present invention;

[0046] Figure 13This is an overall shape view of the operating handle according to one embodiment of the present invention.

[0047] in,

[0048] 10. Base; 11. Bearing part; 111. Cylinder support part; 1111. First cylinder; 1112. Second cylinder; 1113. Slide groove; 112. Opening and closing support part; 1121. First support part; 1121a. Bearing section; 1121b. Connecting section; 1122. Second support part; 12. Mounting part; 121. Connecting structure; 13. Channel; 20. Opening and closing drive assembly; 21. Handle; 22. First connecting rod; 23. Second connecting rod; 24. Lever shaft; 25. Locking drive component; 251. First gear row; 26. Second gear row; 27. Elastic element; 31. Axial limiting sleeve; 311. Connecting platform; 32. Fixing sleeve; 40. First drive assembly; 41. Rotary... 411. Rotary drive component; 412. Operating cylinder; 413. Transmission cylinder; 414. Spiral groove; 42. Drive pin; 50. Third drive assembly; 51. Knob; 52. Rotating sleeve; 60. Handle housing; 61. First housing; 611. Recessed stop; 62. Second housing; 621. Protruding stop; 63. Operating window; 64. Mounting port; 65. Reinforcing rib; 661. First guide groove; 662. Second guide groove; 67. Limiting post; 68. Insertion hole; 69. Insertion pin; 71. Opening / closing drive rod; 72. First drive tube; 73. Outer sleeve; 74. Swing ring; 75. Swing locking component; 76. Sliding sleeve; 761. Pin hole; 77. Locking nut; 78. Insulating sleeve. Detailed Implementation

[0049] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain the present invention and should not be construed as limiting the invention.

[0050] The terms "an embodiment," "example," or "trademark" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this invention. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0051] To improve surgical quality and efficiency, the forceps assembly of surgical instruments generally needs to have multiple functions, such as oscillation, opening and closing, and overall rotation. To facilitate the implementation of these functions, corresponding drive components are typically mounted on the operating handle. In related technologies, these drive components are usually separate, independent structures. During assembly, each independent drive component is mounted on the handle housing. This structure can lead to jamming or failure to achieve the expected precision during use. Based on this, the applicant has been searching for solutions and has finally discovered that because the handle housing is generally thin, such as being made of plastic, directly mounting the drive components on the handle housing not only easily damages the housing (although related technologies use stronger materials to avoid damage, this undoubtedly increases production costs), but also easily deforms the housing under stress during use, thus affecting operational precision and surgical quality.

[0052] Based on this, the first aspect of the present invention discloses an integrated drive module for surgical instruments, see attached figure. Figure 1 , 2 The integrated drive module includes a base 10, a first drive assembly 40, and an opening / closing drive assembly 20. The base 10 includes a cylindrical support 111, an opening / closing support 112, and a mounting part 12. The cylindrical support 111 has a channel 13 for accommodating the drive end of a surgical instrument. The first drive assembly 40 and the opening / closing drive assembly 20 are respectively connected to the drive end. The first drive assembly 40 is connected to the cylindrical support 111 and is used to drive the first drive tube 72 of the drive end to slide along the axial direction of the channel 13 when subjected to external force. The opening / closing support 112 is located on the outside of the cylindrical support 111. The opening / closing drive assembly 20 is hinged to the opening / closing support 112 and is used to drive the opening / closing drive rod 71 of the drive end to slide along the axial direction of the channel 13 when subjected to external force. The mounting part 12 is located on the outside of the cylindrical support 111 and is used to assemble and connect with the handle housing 60 of the surgical instrument.

[0053] The integrated drive module in this embodiment is an integrated functional module. During the production stage, it can be pre-assembled independently of the handle shell 60 (outside the handle shell 60). The base 10 serves as the mounting base for the integrated drive module in this embodiment. During the production and debugging stages, multiple drive components can be pre-assembled on the base 10 to form independent functional modules. At this time, the functions of multiple drive components can be debugged separately, avoiding the defect in related technologies where the debugging work requires the drive components to be installed in the handle shell 60 (during the debugging process, it may be necessary to frequently disassemble the components or adjust the installation position of the components, which can easily cause damage to the handle shell 60).

[0054] Furthermore, a channel 13 is formed on the base 10 in this embodiment, wherein the channel 13 is used to install the drive end of the surgical instrument (forceps assembly). In this way, when the drive assembly and the base 10 are assembled, the channel 13 can serve as the installation reference for multiple drive assemblies. Compared with the installation of multiple separate drive assemblies, the assembly of multiple drive assemblies in this embodiment has a unified installation reference, which can effectively improve the assembly accuracy.

[0055] In this embodiment, the base 10 serves as the mounting base and acts as the main force-bearing component during use. The base 10 is fixedly or detachably connected to the handle housing 60, which acts as an auxiliary force-bearing component. Compared to the related technologies where the drive assembly is directly mounted on the handle housing 60 (which is the main force-bearing component), this design can improve the overall structural strength, maintain effective force transmission, avoid force transmission loss, and effectively maintain the opening and closing clamping force of the pliers assembly.

[0056] This embodiment does not specifically limit the driving form of the first driving component 40 and the opening / closing driving component 20, as long as they can drive the corresponding driving ends to produce the corresponding actions. For example, the first driving component 40 can be implemented by converting the rotation of a knob or gear assembly into axial displacement, or it can be a mechanism that directly drives axial displacement, such as a sliding component or a connecting rod assembly; the opening / closing driving component 20 can be configured as a mechanism that converts rotational motion into axial displacement, or it can be configured as a mechanism that indirectly converts axial motion into axial displacement.

[0057] In this embodiment, multiple drive components can drive the drive end of the pliers assembly to produce corresponding actions within the channel 13. In actual operation, multiple drive components correspond to different parts of the drive end and control different actions of the pliers assembly, such as controlling the tilting, pitching, opening and closing of the pliers assembly, or driving the pliers assembly to rotate as a whole.

[0058] Furthermore, this embodiment does not specifically limit how the mounting part 12 of the base 10 is connected to the handle housing 60. In actual installation, the base 10 can be plugged into, snapped into, or connected to the handle housing 60 through a connector, as long as the base 10 can be stably fixed inside the handle housing 60.

[0059] In this embodiment, the base 10 is not exposed during use (it is hidden inside the handle housing 60). The base 10 has a wider range of material options, as long as sufficient rigidity can be guaranteed. Moreover, compared to the handle housing 60, the base 10 is smaller in size, which can reduce the cost of production materials.

[0060] In this embodiment, the base 10 can be integrally formed during the production process, reducing assembly steps, improving production efficiency, and also helping to ensure the assembly accuracy of the drive components and the overall strength of the integrated drive module; as an optional approach, multiple components can also be fixedly connected to form a stable assembly structure.

[0061] As one embodiment of the present invention, see Appendix Figure 3 The opening and closing support part 112 includes a first support part 1121 and a second support part 1122. The first support part 1121 and the second support part 1122 are respectively disposed on opposite sides of the cylindrical support part 111 along the axial direction. The second support part 1122 is disposed at the rear end of the cylindrical support part 111. The first support part 1121 is disposed in the middle of the cylindrical support part 111. The opening and closing drive assembly 20 is hinged to the first support part 1121 and the second support part 1122.

[0062] In this embodiment, the supporting part 11 includes a cylindrical support part 111 and an opening and closing support part 112. During assembly, the cylindrical support part 111 and the opening and closing support part 112 serve as the mounting base for different drive components. By setting different mounting partitions on the base 10, the layout of each drive component connected to the base 10 can be more standardized and orderly, avoiding mutual interference between the drive components and helping to improve assembly efficiency and assembly accuracy.

[0063] In this embodiment, at least a portion of the mounting portion 12 and the opening / closing support portion 112 are arranged opposite each other, which makes the overall layout more reasonable and more conducive to the stability of force transmission. In addition, a connecting structure 121 is provided on the mounting portion 12 and the opening / closing support portion 112 respectively. The base 10 and the handle housing 60 are detachably or fixedly connected through the connecting structure. In this way, both sides of the base 10 can be connected to the handle housing 60, which can improve the stability of the base 10 installed in the handle housing 60.

[0064] In this embodiment, the mounting part 12 and its opposite opening and closing support part 112 are generally configured as a flat plate structure protruding from the outer wall of the cylindrical support part 111. When the integrated drive module and the handle housing 60 are assembled, the flat plate structure is easier to combine with the handle housing 60, thereby improving the stability of the installation. In addition, in actual installation, the mounting part 12 and its opposite opening and closing support part 112 in this embodiment can be integrally formed with the cylindrical support part 111.

[0065] In this embodiment, the opening and closing support part 112 includes two parts arranged opposite to each other, so that in actual production, the opening and closing support part 112 can adapt to the connection of more different types of drive components and base 10.

[0066] This embodiment does not specifically limit the form of the connection structure 121. In actual installation, the connection structure 121 can be set as a connection hole. During production, the connection between the base 10 and the handle housing 60 is achieved by a connector passing through the connection hole. Of course, the connection structure can also be set as a snap-fit ​​or plug-in structure to achieve snap-fit ​​connection or plug-in connection between the base 10 and the handle housing 60.

[0067] As one embodiment of the present invention, see Appendix Figure 3 The second support portion 1122 and the mounting portion 12 are located on the same side of the cylindrical support portion 111. The first support portion 1121 and the mounting portion 12 are respectively provided with connection structures 121 for assembly and connection with the handle housing 60.

[0068] In one embodiment of the present invention, a protruding positioning post 1123 is formed on the opening and closing support portion 112. In one implementation, the positioning post 1123 is disposed on the second support portion 1122, and the positioning post 1123 is used to cooperate with the locking mechanism of the surgical instrument. The positioning post 1123 serves as the main force-bearing component of the locking mechanism.

[0069] In this embodiment, the first support portion 1121 includes a connecting section 1121b and a bearing section 1121a. The first end of the connecting section 1121b is connected to the outer wall of the cylindrical support portion 111, and the bearing section 1121a is disposed at the second end of the connecting section 1121b. A gap is formed between the bearing section 1121a and the cylindrical support portion 111. The connecting structure 121 is respectively provided on the bearing section 1121a and the connecting section 1121b. The gap between the bearing section 1121a and the cylindrical support portion 111 allows for the provision of installation space for the first drive assembly 40. The first support portion 1121 can meet the requirements for assembling the opening and closing drive assembly 20 without interfering with the installation and operation of the first drive assembly 40.

[0070] In one embodiment of the present invention, the first support portion 1121 is disposed in the middle of the cylindrical support portion 111, and the second support portion 1122 is disposed at the rear end of the cylindrical support portion 111.

[0071] In this embodiment, the first support part 1121 is divided into two sections, with the bearing section 1121a being the main part. In actual installation, the opening and closing drive assembly 20 and the connecting structure 121 are both located in the bearing section 1121a. The bearing section 1121a and the cylinder support part 111 form a gap, which provides sufficient installation space for the components. In this way, when the opening and closing drive assembly 20 is connected to the base 10 and the handle housing 60, the influence of the outer wall of the cylinder support part 111 on the assembly can be better avoided.

[0072] As one embodiment of the present invention, see Appendix Figure 1 , 2 The opening and closing drive assembly 20 includes a handle 21 and a transmission mechanism. One end of the handle 21 is hinged to the first support part 1121, one end of the transmission mechanism is hinged to the second support part 1122, and the other end of the transmission mechanism is hinged to the handle 21. An opening and closing drive part is formed on the transmission mechanism. The opening and closing drive part is disposed on the rear side of the cylindrical support part 111 and is opposite to the channel 13 along the axial direction. The swing of the handle 21 relative to the base 10 can drive the opening and closing drive part to move closer to or away from the channel 13 along the axial direction of the channel 13.

[0073] The integrated drive module in this embodiment includes an opening and closing drive assembly 20, which is used to drive the opening and closing of the pliers head assembly. The opening and closing drive assembly 20 includes a handle 21 and a transmission mechanism, wherein the transmission mechanism is a linkage mechanism, including a first link 22 and a second link 23. One end of the first link 22 is connected to the handle 21, and the other end of the first link 22 is hinged to the first end of the second link 23. The second end of the second link 23 is hinged to the second support part 1122. The opening and closing drive part is formed on the second link 23. The specific drive structure of the opening and closing drive assembly 20 has been described in related technologies and will not be repeated here.

[0074] Unlike related technologies, see Appendix Figure 1 , 2In this embodiment, the handle 21 and the second link 23 are respectively connected to different parts of the opening and closing support 112 (the first support 1121 and the second support 1122). The connection part of the first link 22 and the second link 23 is supported by the handle housing 60 when it is set. That is, in this embodiment, the base 10 is the main force-bearing component of the opening and closing drive assembly 20, and the handle housing 60 is only used as an auxiliary force-bearing component (used to limit the limit of the hinge axis of the first link 22 and the second link 23). When it is set, a second guide groove 662 corresponding to the hinge axis can be provided on the handle housing 60 so that the hinge axis is inserted into the second guide groove 662. This can greatly reduce the force on the handle housing 60 during actual use and reduce the risk of deformation or damage to the handle housing 60.

[0075] Since surgical instruments often require adjustment of the opening size of the forceps assembly during use to facilitate surgical procedures, as can be seen from the above embodiments, the operator drives the opening and closing of the forceps assembly by holding the handle 21 (for example). After adjusting to a suitable opening size, the position of the handle 21 needs to be fixed. It is quite strenuous for the operator to maintain the position of the handle 21 by relying on the gripping force of their hand, so a locking mechanism is required.

[0076] The locking mechanism in this embodiment generally includes an elastic element 27, a locking drive element 25, and a lever shaft 24. The operating handle also includes a locking mechanism for cooperating with the opening and closing drive assembly 20. The locking mechanism includes an elastic element 27 and a locking drive element 25. The locking drive element 25 is throttle-connected to the opening and closing drive assembly 20. One end of the elastic element 27 is limitedly connected to the opening and closing support portion 112, and the other end of the elastic element 27 is limitedly connected to the locking drive element 25.

[0077] The elastic element 27 can be configured as a spring, torsion spring, or other component with elastic deformation. In this embodiment, it is configured as a spring. The elastic element 27 is sleeved and connected to the positioning post 1123. The locking drive component 25 is provided with a first toothed row 251. The locking mechanism of this application can lock the handle 21 by the mutual meshing of the first toothed row 251 and the second toothed row 26. See attached drawing. Figure 11 When the first toothed row 251 and the second toothed row 26 are disengaged, the handle 21 can move freely. The working principle of the locking mechanism switching between locking and unlocking states by the engagement of the first toothed row 251 and the second toothed row 26, and the working principle of the locking mechanism fixing the locking lever shaft 24 to different positions by the cooperation between the cam surface between the lever shaft 24 and the locking drive member 25, have been described in relevant technologies and will not be repeated here.

[0078] Unlike related technologies, see Appendix Figure 10This invention optimizes the mounting structure of the lever shaft 24 and the locking drive component 25. By setting a limiting post 67 on the inner wall of the handle housing 60, and setting a positioning hole on the limiting post 67 corresponding to the pivot shaft of the lever shaft 24 and the locking drive component 25, the pivot shaft of the lever shaft 24 and the locking drive component 25 are directly pivotally connected in the positioning hole. Moreover, the cam mating component is clamped between the limiting platform for limiting during installation. There is no need to use a connecting piece to limit the locking mechanism and the housing 60. Limiting is achieved solely through the structural design. Compared with the structure of the related technology that uses a connecting piece for limiting, the overall structure is more optimized and helps to increase the overall strength.

[0079] As one embodiment of the present invention, the integrated drive module further includes a fixing sleeve 32 that is assembled and connected to the front end of the cylindrical support 111, the fixing sleeve 32 being used to limit the axial position of the first drive assembly 40.

[0080] As one embodiment of the present invention, see Appendix Figure 3 The cylindrical support portion 111 includes a first cylindrical body 1111 and a second cylindrical body 1112. The integrated drive module also includes an axial limiting sleeve 31 and a fixing sleeve 32. The second cylindrical body 1112 is disposed at one end of the first cylindrical body 1111. The axial limiting sleeve 31 is connected to the other end of the radial limiting sleeve. The fixing sleeve 32 is used to fix the axial limiting sleeve 31 to the cylindrical support portion 111. The axial limiting sleeve 31 and the second cylindrical body 1112 are located on the outer wall surface of the first cylindrical body 1111. The plurality of drive components also include a first drive component 40. The first drive component 40 includes a rotary drive member 41. The rotary drive member 41 is rotatably sleeved on the first cylindrical body 1111. The two ends of the rotary drive member 41 in the axial direction are limited by the axial limiting sleeve 31 and the second cylindrical body 1112. The rotation of the rotary drive member 41 around its own axis can drive the drive end of the surgical instrument to move along the axial direction of the channel 13.

[0081] The first drive assembly 40 also includes a drive pin 42, and the sidewall of the rotary drive member 41 has a helical groove 413, see attached figure. Figure 4 The side wall of the cylindrical support 111 has a groove 1113 corresponding to the spiral groove 413. One end of the drive pin 42 is inserted into the spiral groove 413, and the other end of the drive pin 42 extends through the groove 1113 into the channel 13 and is used to connect with the drive end in the channel 13. The drive pin 42 can move relative to the side wall of the spiral groove 413 when the rotating drive member 41 rotates around its own axis, so as to drive the drive end of the surgical instrument to move along the axial direction of the channel 13.

[0082] In this embodiment, the integrated drive module includes a first drive component 40, which is used to drive the yaw or pitch of the plier head assembly. The first drive component 40 includes a rotary drive component 41, which is rotatably sleeved on the first cylinder 1111 of the cylinder support 111. The rotary drive component 41 drives the movement of the drive end of the plier head assembly through the structure of the drive pin 42 and the spiral groove 413.

[0083] Unlike related technologies, in this embodiment, one end of the rotary drive component 41 is limited by an axial limiting sleeve 31, which is sleeved and connected to the cylindrical support portion 111 of the base 10. During installation, the axial limiting sleeve 31 can rotate relative to the cylindrical support portion 111. To ensure a reliable connection between the axial limiting sleeve 31 and the base 10, the drive assembly also includes a fixing sleeve 32. The fixing sleeve 32 is sleeved and threadedly connected to the cylindrical support portion 111. The fixing sleeve 32 is used to fix the axial limiting sleeve 31 to the base 10 (similar to the effect of a screw connection). Through the setting of the fixing sleeve 32 and the axial limiting sleeve 31, in actual installation, the assembly is a sleeve fit, and the threaded connection provides a stable connection while facilitating assembly and disassembly. Compared to the limiting function achieved by connecting to the handle housing 60 in related technologies, in this embodiment, both the fixing sleeve 32 and the axial limiting sleeve 31 are attached to the base 10, reducing potential damage to the handle housing 60 during assembly.

[0084] In this embodiment, a connecting platform 311 is formed on the outer surface of the axial limiting sleeve 31. The connecting platform 311 protrudes from the outer surface of the axial limiting sleeve 31, and a connecting structure 121 is provided on the connecting platform 311. For details on the installation, please refer to the attached diagram. Figures 1 to 3 Since the mounting part 12 and the opening and closing support part 112 are located near the rear end of the base 10, that is, the connection part between the base 10 and the handle housing 60 is concentrated at the rear of the base 10, the axial limiting sleeve 31 in this embodiment is located at the front end of the base 10. By setting a connecting platform 311 on the outer surface of the axial limiting sleeve 31, and setting a connecting structure 121 on the connecting platform 311, it can also be connected to the handle housing 60. In this way, there are connection parts between the base 10 and the handle housing 60 at both the front and rear, making the installation of the base 10 more stable.

[0085] As one embodiment of the present invention, see Appendix Figure 1 , 2The rotary drive component 41 includes an operating cylinder 411 and a transmission cylinder 412. The transmission cylinder 412 is sleeved on the first cylinder body 1111. The two ends of the transmission cylinder 412 abut against the axial limiting sleeve 31 and the second cylinder body 1112, respectively. The operating cylinder 411 is sleeved on the outside of the transmission cylinder 412 and is fixedly connected to the transmission cylinder 412. The rotation of the operating cylinder 411 around its own axis can drive the transmission cylinder 412 to rotate.

[0086] In this embodiment, the inner wall of the transmission cylinder 412 is provided with a spiral groove 413, and the outer surface of the operating cylinder 411 is generally provided with a convex ridge that is easy to twist, thereby improving the operating friction.

[0087] One embodiment of the integrated drive module of the present invention further includes a third drive component 50, which includes a knob 51 and a rotating sleeve 52. The rotating sleeve 52 is rotatably disposed at the front end of the base 10. The knob 51 is fixedly connected to the rotating sleeve 52. The central cavity of the rotating sleeve 52 communicates with the channel 13. The rotating sleeve 52 is used to be fixedly connected to the drive end of a surgical instrument placed in the channel 13. The rotation of the knob 51 around its own axis can drive the surgical instrument to rotate as a whole around the axis of the channel 13.

[0088] In this embodiment, the third drive component 50 is used to drive the overall rotation of the pliers assembly. See attached drawing. Figure 1 , 2 The third drive assembly 50 includes a knob 51 and a rotating sleeve 52. One end of the rotating sleeve 52 is inserted into the fixed sleeve 32 and the axial limiting sleeve 31 mentioned above. A step is formed on the outer surface of the rotating sleeve 52 that abuts against one end face of the fixed sleeve 32. A locking nut 77 is provided at the end of the rotating sleeve 52. The locking nut 77 presses the rotating sleeve 52 tightly onto the fixed sleeve 32, thereby connecting the rotating sleeve 52 to the base 10. It should be noted that in this embodiment, the rotating sleeve 52 can rotate relative to the base 10, but cannot move axially relative to the base 10.

[0089] During the assembly process, the clamp head assembly, knob 51, rotating sleeve 52 and fixing sleeve 32 can be pre-assembled into modules and then installed together into the base 10. The specific assembly process is described below.

[0090] A second aspect of the present invention discloses an operating handle for a surgical instrument, see attached document. Figure 9The operating handle includes a handle housing 60, in which a receiving cavity is formed. The operating handle also includes an integrated drive module in the first aspect. The base 10 is disposed in the receiving cavity and is detachably connected to the handle housing 60 via the mounting part 12. The inner wall of the handle housing 60 is provided with a guide part. The opening and closing drive assembly is movably disposed in the guide part. The guide part is used to guide the opening and closing drive assembly to drive the opening and closing drive rod 71 at the drive end to slide along the axial direction of the channel 13.

[0091] The operating handle of the present invention includes a handle housing 60 and the integrated drive module disclosed above. During production, the integrated drive module is pre-modularly assembled outside the handle housing 60. After the drive module is assembled, it is then installed into the handle housing 60 together. In this embodiment, the base 10 of the integrated drive module is completely placed inside the handle housing 60 and does not expose the handle housing 60. The mounting part 12 of the handle housing 60 and the base 10 can be detached or fixedly connected. In specific settings, the detachable connection structure can be set as plug-in, snap-in, or connected by connectors.

[0092] In this embodiment, the handle housing 60 is provided with a guide portion to guide the movement of the opening and closing drive assembly, thereby improving the stability of the opening and closing drive assembly's movement. Compared to related technologies where the opening and closing drive assembly is directly hinged to the handle housing 60, in this embodiment, the handle housing 60 only serves as an auxiliary guide, significantly reducing the force exerted during use. This embodiment does not specifically limit the structure of the guide portion; in actual implementation, it is generally set as a guide groove.

[0093] In this embodiment, the handle housing 60 is provided with operation windows 63 corresponding to multiple drive components. The operation part of each drive component is exposed on the handle housing 60 through the corresponding operation window 63 for easy operation.

[0094] To facilitate the assembly of the forceps head assembly, the integrated drive module, and the handle housing 60, the handle housing 60 has a mounting port 64 for inserting the forceps head drive assembly of the surgical instrument. The channel 13 is opposite to the mounting port 64 along the axial direction. The handle housing 60 includes a first housing 61 and a second housing 62, which are snap-fitted and welded together. The first housing 61 and the second housing 62 together define a receiving cavity, and the base 10 is disposed within the receiving cavity.

[0095] See appendix Figure 10 , 1213. In this embodiment, the handle housing 60 includes two opposing half-shells (a first housing 61 and a second housing 62). The mating surfaces of the first housing 61 and the second housing 62 are provided with a mutually interlocking structure. For example, a convex stop 621 can be provided on the mating surface of one of the first housing 61 and the second housing 62, and a concave stop 611 can be provided on the mating surface of the other, so as to achieve a precise fit between the first housing 61 and the second housing 62.

[0096] Furthermore, in actual installation, the first housing 61 and the second housing 62 in this embodiment are connected by welding (e.g., by ultrasonic welding). Compared with the handle housing assembled by screws or other connecting structures in related technologies, on the one hand, there is no need to open the connecting structure 121 on the handle housing 60, which avoids damage to the strength of the handle housing 60. On the other hand, the entire outer surface of the handle housing 60 is smoothly transitioned, making it more aesthetically pleasing. It also avoids the problem of dust easily accumulating at the connection and mating parts of the connecting structure, which could easily contaminate the handle housing 60 and improve the quality of surgery.

[0097] Of course, in actual installation, in order to ensure the precise assembly effect of the first housing 61 and the second housing 62, the present invention can also provide multiple matching positioning structures (insertion holes 68 and insertion pins 69) at different parts of the inner walls of the first housing 61 and the second housing 62, such as at corner positions, which can improve the reliability and accuracy of the assembly of the first housing 61 and the second housing 62.

[0098] To improve the stability of the integrated drive module mounted on the handle housing 60, see Appendix Figure 12 In one embodiment of the present invention, a protruding reinforcing rib and a plurality of connecting posts are formed on the inner wall of the handle housing 60. The reinforcing rib is provided with a receiving portion that matches the base 10. The base 10 is fitted into the receiving portion. The connecting post is provided with a threaded hole. The mounting part 12 is provided with a connecting structure 121 (connecting hole) corresponding to the threaded hole. The mounting part 12 is provided on the reinforcing rib 65 through a connecting part that passes through the connecting hole.

[0099] In this embodiment, the inner wall of the handle housing 60 is provided with reinforcing ribs. It should be noted that the inner walls of both the first housing 61 and the second housing 62 in this embodiment are provided with the aforementioned reinforcing ribs. These reinforcing ribs not only improve the strength of the handle housing 60 itself, but also provide a matching receiving portion for the base 10. The base 10 is fitted into the receiving portion, as shown in the attached figure. Figure 9 , 12As shown, the receiving part can form a coarse limit on the base 10, ensuring that the base 10 can be quickly installed in the roughly correct position, and then fixedly connected to the handle housing 60 by the connector passing through the connection structure 121 (connection hole) on the base 10.

[0100] As mentioned above, this invention optimizes the structure of each part of the operating handle, connecting the handle housing 60 and the base 10 through a connecting structure, and achieving a limiting fit through the design of the structure. This greatly reduces the strength required for the handle housing 60, and in actual installation, there is a greater range of material choices for the handle housing 60, which can save production costs.

[0101] See appendix Figure 9 In this embodiment, the handle housing 60 is provided with a first guide groove for guiding the swing of the handle 21, and a second guide groove for guiding the movement of the hinge shaft of the first link and the second link.

[0102] A third aspect of the present invention discloses a surgical instrument, including a forceps head assembly, a forceps head drive assembly, and an operating handle. The output end of the forceps head drive assembly is connected to the forceps head assembly, and the input end of the forceps head drive assembly is connected to the operating handle. The operating handle is the same as the operating handle disclosed in the second aspect. The input end of the forceps head drive assembly is disposed in the channel 13, and the drive assembly is throttle-connected to the input end of the forceps head drive assembly.

[0103] The forceps drive assembly in this embodiment generally includes a first drive tube 72 and an opening / closing drive rod 71 that are nested together. The surgical instrument also includes a tube body disposed outside the first drive tube 72 and the opening / closing drive rod 71, as shown in the attached figure. The outer tube 73, the first drive tube 72, and the opening / closing drive rod 71 are arranged radially from the outside to the inside. During installation, the outer tube 73 cooperates with the knob 51, the first drive tube 72 cooperates with the rotary drive member 41 through the sliding sleeve 76, and the opening / closing drive rod 71 is connected to the second connecting rod 23 in the opening / closing drive assembly 20. In use, the first drive assembly 40 is used to drive the first drive tube 72 to slide axially, specifically by rotating the operating cylinder 411 to drive the first drive tube 72 to slide axially; the opening and closing drive assembly 20 is used to drive the opening and closing drive rod 71 to slide axially along the channel 13, specifically by squeezing and opening the movable handle to drive the opening and closing drive rod 71 to slide axially along the channel 13; the third drive assembly (knob 51) is used to drive the overall rotation of the surgical instrument, specifically by rotating the knob 51 to drive the outer tube 73, the first drive tube 72 and the opening and closing drive rod 71 to rotate together.

[0104] In one embodiment, the first drive tube 72 is connected to the first drive assembly 40 via the following structure: (see attached diagram) Figure 5The yaw lock 75 is fixedly connected to the sliding sleeve 76 (generally by thread). The yaw ring 74 is engaged in the sliding sleeve 76 by the yaw lock 75. The yaw ring 74 can rotate relative to the sliding sleeve 76, but is fixed relative to the sliding sleeve 76 in the axial direction. The sliding sleeve 76 is provided with a pin hole 761 that cooperates with the drive pin 42. The yaw ring 74 is fixedly connected to the first drive tube 72.

[0105] In one embodiment, the third drive assembly 50 is fixedly connected to the outer sleeve 73 via the following structure: see Appendix Figure 6 Insert the rotating sleeve 52 into the fixed sleeve 32 and fix the rotating sleeve 52 onto the fixed sleeve 32 by locking the nut 77. The rotating sleeve 52 can rotate relative to the fixed sleeve 32, but cannot move axially relative to the fixed sleeve 32.

[0106] See appendix Figure 7 In this embodiment, the clamp driving assembly includes a first driving tube 72 and an opening / closing driving rod 71 connected together. The first driving tube 72 is connected to the first driving assembly 40, and the opening / closing driving rod 71 is connected to the opening / closing driving assembly 20.

[0107] In one embodiment, the surgical instrument of this application includes: a relatively independent assembly module consisting of a forceps head assembly, a forceps head drive assembly, and a third drive assembly 50; a relatively independent assembly module formed by the aforementioned integrated drive module; a locking mechanism; and a housing. The installation of these modules reduces assembly difficulty and improves production efficiency. The integrated drive module in this technical solution integrates multiple different drive components, which can be independently modularized and designed as components with independent functions. During assembly, it can be pre-assembled independently of other modules of the surgical instrument, can be individually debugged, has stable performance, and meets the high operational precision requirements of surgical instruments. Furthermore, during the assembly of the entire machine, it is not affected by the installation of other external accessories, is easy to replace, and is beneficial for maintaining precision and mass production. In addition, the base 10 in the integrated drive module, as the main load-bearing component, can avoid assembly damage and precision problems to the plastic handle housing 60, improving overall strength.

[0108] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the present invention will be included within the scope of the claims. The various specific embodiments of the present invention described above can be combined with each other without contradiction.

Claims

1. An integrated drive module for surgical instruments, the integrated drive module comprising a base (10), a first drive assembly (40), and an opening / closing drive assembly (20), characterized in that, The base (10) includes a cylindrical support (111), an opening and closing support (112), and a mounting part (12). The cylindrical support (111) has a channel (13) inside, which is used to accommodate the driving end of the surgical instrument. The first driving assembly (40) and the opening and closing driving assembly (20) are respectively connected to the driving end. The first drive assembly (40) is connected to the cylindrical support (111) and is used to drive the first drive tube (72) at the drive end to slide along the axial direction of the channel (13) when subjected to external force. The opening and closing support part (112) is disposed on the outside of the cylindrical support part (111), and the opening and closing drive assembly (20) is hinged to the opening and closing support part (112) and is used to drive the opening and closing drive rod (71) at the drive end to slide along the axial direction of the channel (13) when subjected to external force. The mounting part (12) is located on the outside of the cylindrical support part (111) and is used to assemble and connect with the handle housing (60) of the surgical instrument.

2. The integrated drive module according to claim 1, characterized in that, The opening and closing support part (112) includes a first support part (1121) and a second support part (1122). The first support part (1121) and the second support part (1122) are respectively disposed on both sides of the cylindrical support part (111) in the axial direction. The opening and closing drive assembly (20) is hinged to the first support part (1121) and the second support part (1122) respectively.

3. The integrated drive module according to claim 2, characterized in that, The second support part (1122) and the mounting part (12) are located on the same side of the cylindrical support part (111), and the first support part (1121) and the mounting part (12) are respectively provided with a connection structure (121) for assembly connection with the handle housing (60); And / or, a protruding positioning post (1123) is formed on the first support portion (1121), the positioning post (1123) being used to cooperate with the locking mechanism of the surgical instrument.

4. The integrated drive module according to claim 2, characterized in that, The first support part (1121) includes a connecting section (1121b) and a bearing section (1121a). The first end of the connecting section (1121b) is connected to the outer wall of the cylindrical support part (111). The bearing section (1121a) is disposed at the second end of the connecting section (1121b). A gap is formed between the bearing section (1121a) and the cylindrical support part (111). The opening and closing drive assembly (20) is hinged to the bearing section (1121a). The bearing section (1121a) and the connecting section (1121b) are respectively provided with a connecting structure (121) for assembly and connection with the handle housing (60). And / or, the first support part (1121) is disposed in the middle of the cylindrical support part (111), and the second support part (1122) is disposed at the rear end of the cylindrical support part (111).

5. The integrated drive module according to claim 2, characterized in that, The opening and closing drive assembly (20) includes a handle (21) and a transmission mechanism. One end of the transmission mechanism is hinged to the second support part (1122), and one end of the handle (21) is hinged to the first support part (1121) and can rotate relative to the first support part (1121). The handle (21) is used to drive the transmission mechanism to rotate relative to the second support part (1122).

6. The integrated drive module according to claim 5, characterized in that, The transmission mechanism includes an opening and closing drive unit, which is located on the rear side of the cylindrical support unit (111) and is opposite to the channel (13) along the axial direction. The rotation of the handle (21) relative to the base (10) can drive the opening and closing drive unit to move closer to or away from the channel (13) along the axial direction of the channel (13).

7. The integrated drive module according to claim 1, characterized in that, The opening and closing support part (112) and the mounting part (12) are respectively provided with connection structures (121) for assembly and connection with the handle housing (60); And / or, the integrated drive module further includes a fixing sleeve (32) assembled and connected to the front end of the cylindrical support (111), the fixing sleeve (32) being used to limit the axial position of the first drive assembly (40).

8. The integrated drive module according to any one of claims 1 to 7, characterized in that, The cylindrical support (111) includes a first cylindrical body (1111) and a second cylindrical body (1112) connected together. The first driving assembly (40) is rotatably sleeved on the outer wall of the first cylindrical body (1111). The opening and closing support (112) and the mounting part (12) are both connected to the second cylindrical body (1112). The integrated drive module also includes a fixing sleeve (32) that is assembled and connected to the first cylinder (1111). The second cylinder (1112) and the fixing sleeve (32) both protrude from the outer wall surface of the first cylinder (1111). The two ends of the first drive assembly (40) are axially limited to the fixing sleeve (32) and the second cylinder (1112).

9. The integrated drive module according to claim 8, characterized in that, The integrated drive module also includes an axial limiting sleeve (31) sleeved between the fixed sleeve (32) and the first drive assembly (40), the axial limiting sleeve (31) protruding from the outer wall surface of the first cylinder (1111); a connecting platform (311) is formed on the outer surface of the axial limiting sleeve (31), and a connecting structure (121) is provided on the connecting platform (311).

10. The integrated drive module according to claim 8, characterized in that, The first drive assembly (40) includes a rotary drive member (41) and a drive pin (42). The inner wall of the rotary drive member (41) is formed with a spiral groove (413). The side wall of the cylindrical support (111) is formed with a sliding groove (1113) corresponding to the spiral groove (413). One end of the drive pin (42) is inserted into the spiral groove (413), and the other end of the drive pin (42) extends through the sliding groove (1113) into the channel (13) and is used to connect with the drive end in the channel (13). The drive pin (42) can move relative to the side wall of the spiral groove (413) when the rotary drive member (41) rotates around its own axis, so as to drive the drive end of the surgical instrument to move along the axial direction of the channel (13).

11. The integrated drive module according to any one of claims 1 to 7, characterized in that, The integrated drive module also includes a third drive assembly (50) for driving the drive end of the surgical instrument to rotate. The third drive assembly (50) includes a knob (51) and a rotating sleeve (52) with one end fixedly connected to the knob (51). The other end of the rotating sleeve (52) is sleeved inside the cylindrical support (111) and rotatably connected to the cylindrical support (111). The central cavity of the rotating sleeve (52) communicates with the channel (13). The rotating sleeve (52) is used to be fixedly connected to the drive end of the surgical instrument.

12. An operating handle for a surgical instrument, comprising a handle housing (60) having a receiving cavity formed therein, characterized in that, The operating handle further includes an integrated drive module as described in any one of claims 1 to 11. The base (10) is disposed in the receiving cavity and connected to the handle housing (60) through the mounting part (12). The inner wall of the handle housing (60) is provided with a guide part, which is movably connected to the opening and closing drive assembly (20) and is used to guide the movement path of the opening and closing drive assembly (20).

13. The operating handle according to claim 12, characterized in that, The operating handle also includes a locking mechanism for cooperating with the opening and closing drive assembly (20). The locking mechanism includes an elastic element (27) and a locking drive element (25). The locking drive element (25) is connected to the opening and closing drive assembly (20) in a driving manner. One end of the elastic element (27) is limitedly connected to the opening and closing support part (112), and the other end of the elastic element (27) is limitedly connected to the locking drive element. And / or, a protruding reinforcing rib is formed on the inner wall of the handle housing (60), and a receiving portion matching the base (10) is provided on the reinforcing rib (65), the base (10) is fitted into the receiving portion, and the guide portion is provided on the reinforcing rib (65).

14. A surgical instrument comprising a connected forceps head assembly, a forceps head drive assembly, and an operating handle, characterized in that, The operating handle is an operating handle as described in any one of claims 12 to 13. The pliers drive assembly includes a first drive tube (72) and an opening / closing drive rod (71) connected in a sleeve. The first drive tube (72) is throttle-connected to the first drive assembly (40), and the opening / closing drive rod (71) is throttle-connected to the opening / closing drive assembly (20).

15. The surgical instrument according to claim 14, characterized in that, The pliers drive assembly also includes an outer sleeve (73), which is sleeved on the outside of the first drive tube (72). The integrated drive module also includes a third drive assembly (50), which includes a knob (51) and a rotating sleeve (52) with one end fixedly connected to the knob (51). The rotating sleeve (52) is fixedly connected to the outer sleeve (73).

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