Trigger assembly, surgical instrument and surgical instrument system

Abstract

The utility model belongs to the field of medical instruments, and provides a trigger assembly, a surgical instrument and a surgical instrument system.The surgical instrument system comprises the surgical instrument, the surgical instrument comprises the trigger assembly, the trigger assembly comprises a first transmission arm, a second transmission arm, a third transmission arm and a touch control part, and the touch control part is connected between the first transmission arm and the second transmission arm; the first transmission arm is in transmission fit with the touch control piece in the first direction, the second transmission arm is in transmission fit with the touch control piece in the second direction, and the second direction is opposite to the first direction; the third transmission arm is in transmission fit with the touch control part in the third direction and is used for driving the touch control part to move in the third direction, so that the touch control part triggers the switch; the included angle between the third direction and the first direction and the included angle between the third direction and the second direction are 80-100 degrees. The trigger assembly can trigger the switch in three directions, the flexibility is high, the first transmission arm, the second transmission arm and the third transmission arm act on the same touch control piece, and the space occupied by the trigger assembly for the surgical instrument can be reduced.

Description

Technical Field

[0001] This application belongs to the technical field of medical devices, and more specifically, relates to a trigger assembly, a surgical instrument, and a surgical instrument system. Background Art

[0002] Surgical instruments play a crucial role in surgical operations. They can assist doctors in performing various surgeries and operations, improving the success rate of surgeries. With the continuous development of medical technology, the demand for surgical instruments is also increasing, leading to the continuous upgrading of surgical instruments. For example, some electrosurgical instruments can integrate functions such as tissue dissection, clamping, coagulation, and transection.

[0003] Considering human - machine interaction and facilitating the operator to operate the surgical instrument to achieve these functions, switches are usually designed on the housing of the handheld instrument. Electrical connection is achieved by operating the switches, and the arrangement position and quantity of the switches can be designed according to requirements. For example, some surgical instruments directly have a button arranged on the central axis plane of the housing, and the switch is triggered by the operator's thumb or index finger or multiple fingers directly or indirectly, but only one - way pressing can be achieved, which causes inconvenience to the operator. For other surgical instruments, to be compatible with the use of both left - and right - handed people, two switch components are arranged on opposite sides of the central axis plane of the housing. Each switch component includes a switch and a button, and the switch is triggered by the operator's thumb pressing the button. However, this requires an increase in the number of switches and cables, resulting in high costs and a large space occupation. There are also some surgical instruments. To be compatible with trigger scenarios in multiple directions, such as three different axial directions, the design method is to directly set switch components on three different axial directions of the housing. Multiple switch components are electrically connected in parallel or in series, and each switch component includes a switch and a button. This method can flexibly arrange the position of the button, but also has high costs and a large space occupation. Summary of the Utility Model

[0004] The purpose of the embodiments of this application is to provide a trigger assembly, a surgical instrument, and a surgical instrument system to solve the technical problems of high cost and large space occupation in the arrangement of multi - way switches on surgical instruments in the prior art.

[0005] To achieve the above - mentioned purpose, the technical solution adopted in this application is:

[0006] The first aspect provides a triggering component, which is supported by the housing of a surgical instrument and is used to trigger a switch. The triggering component includes a first transmission arm, a second transmission arm, a third transmission arm and a touch control member. The touch control member is connected between the first transmission arm and the second transmission arm. The first transmission arm and the touch control member are in transmission cooperation in a first direction to drive the touch control member to move in the first direction so that the touch control member triggers the switch. The second transmission arm and the touch control member are in transmission cooperation in a second direction to drive the touch control member to move in the second direction so that the touch control member triggers the switch. The second direction is opposite to the first direction. The third transmission arm and the touch control member are in transmission cooperation in a third direction to drive the touch control member to move in the third direction so that the touch control member triggers the switch. The included angle between the third direction and the first direction and the second direction is 80°-100°.

[0007] Optionally, the touch control member has a first touch surface and a second touch surface, and the first touch surface and the second touch surface are symmetrically arranged with respect to each other, and the first touch surface and the second touch surface are inclined with respect to the first direction.

[0008] Optionally, both the first touch surface and the second touch surface are inclined planes, and the touch control member further has a connecting surface, and the first touch surface is connected to the second touch surface through the connecting surface.

[0009] Optionally, the touch control member is slidably connected to the third transmission arm in the first direction.

[0010] Optionally, a first guiding structure is provided on the touch control member, and a second guiding structure is provided on the third transmission arm, and the first guiding structure and the second guiding structure are in sliding cooperation in the first direction.

[0011] Optionally, the triggering component further includes a first button, a second button, a first elastic member and a second elastic member. The first button is in sliding cooperation with the housing in the first direction, and the second button is in sliding cooperation with the housing in the second direction. The first button and the second button respectively protrude from the outer side surface of the housing. The first elastic member abuts between the first button and the first transmission arm, and the second elastic member abuts between the second button and the second transmission arm.

[0012] Optionally, the triggering component further includes a cantilever and a third elastic member. One end of the cantilever is connected to the third transmission arm, the other end of the cantilever is hinged to the housing, and the third elastic member abuts between the third transmission arm and the housing; or,

[0013] The trigger assembly further includes a cantilever. One end of the cantilever is connected to the third transmission arm, and the other end of the cantilever is used for fixedly connecting to the housing. The cantilever is an elastically deformable structure.

[0014] Optionally, the third direction is perpendicular to the first direction and the second direction.

[0015] In a second aspect, a surgical instrument is provided, including a handle, a shaft assembly, and an end effector, wherein the handle includes a switch and the trigger assembly according to any one of the above.

[0016] In a third aspect, a surgical instrument system is provided, including a host and the surgical instrument as described above. The host is configured to receive instructions from the surgical instrument to provide energy to the surgical instrument.

[0017] The trigger assembly, surgical instrument, and surgical instrument system provided in this application have the beneficial effect that, compared with the prior art, the second direction of the trigger assembly in this application is opposite to the first direction, and the angle between the third direction and the first and second directions is 80° - 100°. Thus, the switch can be triggered from three directions, with strong flexibility, and it can be applied to scenarios where the switch needs to be triggered from three directions. Moreover, the first transmission arm, second transmission arm, and third transmission arm of the trigger assembly in this application act on the same touch control element, which is beneficial for reducing the number of components. Also, the first transmission arm, second transmission arm, third transmission arm, and touch control element are combined into a whole through the housing, and the overall structure is simple, compact, and has a small volume, which is beneficial for reducing the space occupied by the trigger assembly in the surgical instrument. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic cross-sectional structure diagram of the trigger assembly provided by an embodiment of this application;

[0020] Figure 2 It is a partial front view structure diagram of the trigger assembly provided by an embodiment of this application;

[0021] Figure 3 It is a usage state diagram of the trigger assembly provided by an embodiment of this application;

[0022] Figure 4 It is a schematic three-dimensional structure diagram of the trigger assembly provided by an embodiment of this application Figure 1 ;

[0023] Figure 5 Schematic three-dimensional structure of the trigger assembly provided by an embodiment of the present application Figure 2 ;

[0024] Figure 6 Partial structure schematic of the third drive arm provided by an embodiment of the present application Figure 1 ;

[0025] Figure 7 Partial structure schematic of the third drive arm provided by an embodiment of the present application Figure 2 ;

[0026] Figure 8 Schematic side view structure of the trigger assembly provided by an embodiment of the present application Figure 1 ;

[0027] Figure 9 Partial structure schematic of the third drive arm provided by an embodiment of the present application Figure 3 ;

[0028] Figure 10 Partial structure schematic of the third drive arm provided by an embodiment of the present application Figure 4 ;

[0029] Figure 11 Schematic side view structure of the third drive arm provided by an embodiment of the present application Figure 2 ;

[0030] Figure 12 Schematic cross-sectional structure diagram of the trigger assembly provided by an embodiment of the present application.

[0031] Main reference numeral description:

[0032] 1000, trigger assembly; 10, housing; 20, first drive arm; 21, first guiding structure; 30, third drive arm; 31, second guiding structure; 32, sliding groove; 33, mounting portion; 34, extending portion; 40, touch control member; 41, first touch surface; 42, second touch surface; 43, connecting surface; 50, second drive arm; 60, first button; 70, second button; 80, first elastic member; 90, second elastic member; 100, cantilever; 110, third elastic member; 2000, switch; 2010, contact; F1, first direction; F2, second direction; F3, third direction. Detailed implementation manners

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0035] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0037] Please refer to Figures 1 to 11 together. Now, the trigger assembly 1000 provided in the embodiment of the present application will be described. The trigger assembly 1000 is supported by the housing 10 of the surgical instrument and is used to trigger the switch 2000.

[0038] Please refer to Figure 1 and Figure 2 . The trigger assembly 1000 includes a first transmission arm 20, a second transmission arm 50, a third transmission arm 30 and a touch control 40. The touch control 40 is connected between the first transmission arm 20 and the second transmission arm 50. The first transmission arm 20 and the touch control 40 are in transmission cooperation along a first direction F1, and are used to drive the touch control 40 to move along the first direction F1 so that the touch control 40 triggers the switch 2000. The second transmission arm 50 and the touch control 40 are in transmission cooperation along a second direction F2, and are used to drive the touch control 40 to move along the second direction F2 so that the touch control 40 triggers the switch 2000. The second direction F2 is opposite to the first direction F1. The third transmission arm 30 and the touch control 40 are in transmission cooperation along a third direction F3, and are used to drive the touch control 40 to move along the third direction F3 so that the touch control 40 triggers the switch 2000. The included angle between the third direction F3 and the first direction F1 and the second direction F2 is 80° - 100°.

[0039] Among them, the touch control 40 is used to trigger the switch 2000. The touch control 40 can be driven to move along the first direction F1 by the first transmission arm 20, so that the touch control 40 can trigger the switch 2000; or, the touch control 40 can be driven to move along the second direction F2 by the second transmission arm 50, so that the touch control 40 can trigger the switch 2000; or, the touch control 40 can be driven to move along the third direction F3 by the third transmission arm 30, so that the touch control 40 can trigger the switch 2000.

[0040] The first transmission arm 20 and the touch control 40 being in transmission cooperation along the first direction F1 means that by acting on the first transmission arm 20, the first transmission arm 20 can drive the touch control 40 to move along the first direction F1, so that the touch control 40 triggers the switch 2000. Similarly, the second transmission arm 50 and the touch control 40 being in transmission cooperation along the second direction F2 means that by acting on the second transmission arm 50, the second transmission arm 50 can drive the touch control 40 to move along the second direction F2, so that the touch control 40 triggers the switch 2000. The third transmission arm 30 and the touch control 40 being in transmission cooperation along the third direction F3 means that by acting on the third transmission arm 30, the third transmission arm 30 can drive the touch control 40 to move along the third direction F3, so that the touch control 40 triggers the switch 2000.

[0041] Optionally, the first transmission arm 20, the touch control 40, and the second transmission arm 50 are integrally formed, which is simple to manufacture and has few installation components, facilitating cost reduction. When the first transmission arm 20, the touch control 40, and the second transmission arm 50 are integrally formed, for the convenience of distinguishing the first transmission arm 20, the touch control 40, and the second transmission arm 50, Figure 3 taking the dotted line in [[]] as a reference, the touch control 40 is the part between the two dotted lines, and the first transmission arm 20 and the second transmission arm 50 are respectively the parts on both sides of the two dotted lines.

[0042] Of course, the first transmission arm 20, the touch control 40, and the second transmission arm 50 can also be separately formed, and the first transmission arm 20, the touch control 40, and the second transmission arm 50 are assembled respectively. Or, the first transmission arm 20, the touch control 40, and the second transmission arm 50 are first separately formed, and then after the three are sequentially connected to form a combined body, the combined body is assembled with the housing 10 and / or the third transmission arm 30.

[0043] The first direction F1 being opposite to the second direction F2 means two opposite directions on the same axis. For example, in the horizontal direction, when the first direction F1 represents from right to left, the second direction F2 represents from left to right, so that the switch 2000 can be triggered from both the left and right sides. The included angle between the third direction F3 and the first direction F1 and the second direction F2 is 80° - 100°, so that the orientation of the third direction F3 with respect to the first direction F1 and the second direction F2 is relatively large, enabling the switch 2000 to be triggered from three different directions.

[0044] Optionally, the angle between the third direction F3 and both the first direction F1 and the second direction F2 is 90°, that is, the third direction F3 is perpendicular to the first direction F1 and the second direction F2, so that the switch 2000 can be triggered from a direction perpendicular to the first direction F1 and the second direction F2.

[0045] For the triggering assembly 1000 provided in the present application, compared with the prior art, the trigger control 40 of the triggering assembly 1000 of the present application is used to trigger the switch 2000. By drivingly mating the first transmission arm 20 and the trigger control 40 along the first direction F1, the trigger control 40 can be driven by the first transmission arm 20 to move along the first direction F1, so that the trigger control 40 triggers the switch 2000; by drivingly mating the second transmission arm 50 and the trigger control 40 along the second direction F2, the trigger control 40 can be driven by the second transmission arm 50 to move along the second direction F2, so that the trigger control 40 triggers the switch 2000; by drivingly mating the third transmission arm 30 and the trigger control 40 along the third direction F3, the trigger control 40 can be driven by the third transmission arm 30 to move along the third direction F3, so that the trigger control 40 triggers the switch 2000. The second direction F2 is opposite to the first direction F1, and the angle between the third direction F3 and the first direction F1 and the second direction F2 is 80°-100°, so that the switch 2000 can be triggered from three directions, with strong flexibility and can be applied to scenarios where the switch 2000 needs to be triggered from three directions. For example, the electric device acts on the first transmission arm 20, and the first transmission arm 20 drives the trigger control 40 to move along the first direction F1 to automatically trigger the switch 2000, or the electric device acts on the second transmission arm 50, and the second transmission arm 50 drives the trigger control 40 to move along the first direction F1 to automatically trigger the switch 2000, or the operator acts on the third transmission arm 30, and the third transmission arm 30 drives the trigger control 40 to move along the third direction F3 to manually trigger the switch 2000, realizing the common use of humans and machines. The first transmission arm 20, the second transmission arm 50 and the third transmission arm 30 of the triggering assembly 1000 of the present application act on the same trigger control 40, which is beneficial to reducing the number of parts, and the first transmission arm 20, the second transmission arm 50, the third transmission arm 30 and the trigger control 40 are combined into a whole through the housing 10, and the overall structure is simple, compact and has a small volume, which is beneficial to reducing the space occupied by the triggering assembly 1000 for the surgical instrument.

[0046] In an embodiment of the present application, please refer to Figure 1 and Figure 2 , the trigger control 40 has a first touch surface 41 and a second touch surface 42, the first touch surface 41 and the second touch surface 42 are symmetrically arranged with respect to each other, and the first touch surface 41 and the second touch surface 42 are inclined with respect to the first direction F1.

[0047] Specifically, the first pressing surface 41 faces the switch 2000, and in the first direction F1, the distance between the first pressing surface 41 and the switch 2000 gradually decreases. Thus, during the process of the first driving arm 20 pushing the touch control member 40 to move in the first direction F1, the first pressing surface 41 gradually approaches the switch 2000. Therefore, when the touch control member 40 moves a preset stroke in the first direction F1, the first pressing surface 41 contacts and presses the switch 2000, thereby triggering the switch 2000, as Figure 3 . The second pressing surface 42 faces the switch 2000, and in the second direction F2, the distance between the second pressing surface 42 and the switch 2000 gradually decreases. Thus, during the process of the second driving arm 50 pushing the touch control member 40 to move in the second direction F2, the second pressing surface 42 gradually approaches the switch 2000. Therefore, when the touch control member 40 moves a preset stroke in the second direction F2, the second pressing surface 42 contacts and presses the switch 2000, thereby triggering the switch 2000. It can be understood that the first pressing surface 41 and the second pressing surface cooperate to form a V shape approximately.

[0048] In the above technical solution, by inclining the first pressing surface 41 in the direction of the second pressing surface 42 relative to the first direction F1, and inclining the second pressing surface 42 in the direction of the first pressing surface 41 relative to the first direction F1, during the process of the first driving arm 20 pushing the touch control member 40 to move in the first direction F1, the first pressing surface 41 gradually approaches the switch 2000 until the first pressing surface 41 triggers the switch 2000. During the process of the second driving arm 50 pushing the touch control member 40 to move in the second direction F2, the second pressing surface 42 gradually approaches the switch 2000 until the second pressing surface 42 triggers the switch 2000. This makes the structure of the first driving arm 20, the second driving arm 50 and the touch control member 40 cooperating to trigger the switch 2000 simple, which is beneficial to reducing the process difficulty and cost. In addition, the first pressing surface 41 and the second pressing surface 42 are symmetrically arranged, so that the stroke of the first triggering surface triggering the switch 2000 by pushing the touch control member 40 through the first driving arm 20 is the same as the stroke of the second triggering surface triggering the switch 2000 by pushing the touch control member 40 through the second driving arm 50, which is convenient for control.

[0049] Optionally, both the first pressing surface 41 and the second pressing surface 42 are inclined planes, and the touch control member 40 further has a connecting surface 43. The first pressing surface 41 is connected to the second pressing surface 42 through the connecting surface 43.

[0050] Optionally, the connecting surface 43 can be a concave arc surface or a smooth surface.

[0051] The connecting surface 43 is located between the first pressing surface 41 and the second pressing surface 42. In this way, when the touch control 40 is not driven by the first transmission arm 20 or the second transmission arm 50 to trigger the switch 2000, the connecting surface 43 is correspondingly arranged with the switch 2000. At this time, the touch control 40 can be driven by the third transmission arm 30 to move along the third direction F3, so that the touch control 40 triggers the switch 2000.

[0052] It should be noted that in other embodiments, the first pressing surface 41 and the second pressing surface 42 may also be concave arc surfaces or convex arc surfaces.

[0053] In an embodiment of the present application, please refer to Figure 4 and Figure 5 , the touch control 40 is slidably connected to the third transmission arm 30 along the first direction F1.

[0054] Optionally, a chute 32 extending along the first direction F1 is provided on the third transmission arm 30, and the touch control 40 is slidably arranged in the chute 32 along the first direction F1. Or, a chute 32 extending along the first direction F1 is provided on the touch control 40, and the third transmission arm 30 is slidably arranged in the chute 32 along the first direction F1.

[0055] Since the second direction F2 is opposite to the first direction F1, when the touch control 40 is slidably connected to the third transmission arm 30 along the first direction F1, the touch control 40 can slide relative to the third transmission arm 30 along the first direction F1 or the second direction F2. Specifically, the touch control 40 slides relative to the third transmission arm 30 along the first direction F1 under the push of the first transmission arm 20, and the touch control 40 slides relative to the third transmission arm 30 along the second direction F2 under the push of the second transmission arm 50.

[0056] By slidably connecting the touch control 40 to the third transmission arm 30 along the first direction F1, in this way, when the first transmission arm 20 or the second transmission arm 50 drives the touch control 40 to move along the first direction F1 or the second direction F2 to trigger the switch 2000, the touch control 40 slides relative to the third transmission arm 30, and the third transmission arm 30 remains stationary, with a simple structure, convenient and labor-saving operation.

[0057] In an embodiment of the present application, please refer to Figure 5 , a first guiding structure 21 is provided on the touch control 40, a second guiding structure 31 is provided on the third transmission arm 30, and the first guiding structure 21 and the second guiding structure 31 are slidably matched along the first direction F1.

[0058] Wherein, one of the first guiding structure 21 and the second guiding structure 31 is a guide rail, and the other is a guide groove, and the guide groove and the guide rail are slidably engaged along the first direction F1. Optionally, the first guiding structure 21 is a guide rail, and the number of the first guiding structures 21 is two, and they are respectively arranged on the opposite sides in the sliding groove 32, that is, the sliding groove 32 is generally in an H shape, such as Figure 6 , the second guiding structure 31 is a guide groove, and the number of the second guiding structures 31 is two, and they are respectively arranged on the opposite sides of the touch control member 40, and the two first guiding structures 21 and the two second guiding structures 31 are slidably engaged. Or, the first guiding structure 21 is a guide groove, and the number of the first guiding structures 21 is two, and they are respectively arranged on the opposite sides in the sliding groove 32, that is, the sliding groove 32 is generally in an inverted T shape, such as Figure 7 , the second guiding structure 31 is a guide rail, and the number of the second guiding structures 31 is two, and they are respectively arranged on the opposite sides of the touch control member 40, and the two first guiding structures 21 and the two second guiding structures 31 are slidably engaged.

[0059] By slidably engaging the first guiding structure 21 and the second guiding structure 31 along the first direction F1, it is beneficial to improve the stability of the sliding connection between the touch control member 40 and the third transmission arm 30.

[0060] It should be noted that when the first transmission arm 20, the second transmission arm 50 and the touch control member 40 are integrally formed, the two ends of the first guiding structure 21 respectively extend to the first transmission arm 20 and the first transmission arm 20, so that it is also beneficial to improve the stability of the movement of the first transmission arm 20 and the second transmission arm 50.

[0061] In an embodiment of the present application, please refer to Figure 1 , the trigger assembly 1000 further includes a first button 60, a second button 70, a first elastic member 80 and a second elastic member 90. The first button 60 is slidably engaged with the housing 10 along the first direction F1, the second button 70 is slidably engaged with the housing 10 along the second direction F2, the first button 60 and the second button 70 respectively protrude from the outer side surface of the housing 10, the first elastic member 80 abuts between the first button 60 and the first transmission arm 20, and the second elastic member 90 abuts between the second button 70 and the second transmission arm 50.

[0062] Specifically, when it is necessary to drive the touch control member 40 by the first transmission arm 20 to trigger the switch 2000, an acting force in the first direction F1 is applied to the first button 60. For example, when the first button 60 is pressed, the first button 60 compresses the first elastic member 80, so that the first elastic member 80 accumulates elastic potential energy. The first elastic member 80 drives the first transmission arm 20 to move in the first direction F1, and the first transmission arm 20 drives the touch control member 40 to move in the first direction F1. Furthermore, the switch 2000 is triggered by the first touch surface 41 on the touch control member 40. During the movement of the touch control member 40 in the first direction F1, the touch control member 40 drives the second transmission arm 50 to move in the first direction F1, and the second transmission arm 50 compresses the second elastic member 90, so that the second elastic member 90 accumulates elastic potential energy. When the acting force on the first button 60 is withdrawn, such as when the first button 60 is no longer pressed, the first elastic member 80 releases the elastic potential energy and pushes the first button 60 to reset in the second direction F2. The second elastic member 90 releases the elastic potential energy and pushes the first transmission arm 20, the touch control member 40 and the first transmission arm 20 to reset in the second direction F2.

[0063] Similarly, when it is necessary to drive the touch control member 40 by the second transmission arm 50 to trigger the switch 2000, an acting force in the second direction F2 is applied to the second button 70. For example, when the second button 70 is pressed, the second button 70 compresses the second elastic member 90, so that the second elastic member 90 accumulates elastic potential energy. The second elastic member 90 drives the second transmission arm 50 to move in the second direction F2, and the second transmission arm 50 drives the touch control member 40 to move in the second direction F2. Furthermore, the switch 2000 is triggered by the second touch surface 42 on the touch control member 40. During the movement of the touch control member 40 in the second direction F2, the touch control member 40 drives the first transmission arm 20 to move in the second direction F2, and the first transmission arm 20 compresses the first elastic member 80, so that the first elastic member 80 accumulates elastic potential energy. When the acting force on the second button 70 is withdrawn, such as when the second button 70 is no longer pressed, the second elastic member 90 releases the elastic potential energy and pushes the second button 70 to reset in the first direction F1. The first elastic member 80 releases the elastic potential energy and pushes the second transmission arm 50, the touch control member 40 and the second transmission arm 50 to reset in the first direction F1.

[0064] Optionally, both the first elastic member 80 and the second elastic member 90 are springs or other elastic components. The pressing force and feel of the first button 60 and the second button 70 can be adjusted by adjusting the stiffness and compression amount of the first elastic member 80 and the second elastic member 90.

[0065] Through the cooperation among the first transmission arm 20, the touch control member 40, the second transmission arm 50, the first button 60, the second button 70, the first elastic member 80, and the second elastic member 90, the structure for driving the touch control member 40 to trigger the switch 2000 by the first transmission arm 20 or the second transmission arm 50 is simple and convenient to operate.

[0066] In an embodiment of the application, please refer to Figure 4 , Figure 5 , Figure 8 and Figure 9 , the trigger assembly 1000 further includes a cantilever 100. One end of the cantilever 100 is connected to the third transmission arm 30, and the other end of the cantilever 100 is used for fixedly connecting to the housing 10. The cantilever 100 is an elastically deformable structure.

[0067] Optionally, the third transmission arm 30 includes a mounting portion 33 and an extension portion 34. The mounting portion 33 supports the touch control member 40. Specifically, the touch control member 40 is slidably and cooperatively connected to the mounting portion 33 along the first direction F1. The extension portion 34 is arc-shaped. One end of the extension portion 34 is connected to the mounting portion 33, and the other end of the extension portion 34 extends outside the housing 10, facilitating the operator to apply a force to the extension portion 34, so that the third transmission arm 30 drives the touch control member 40 to move along the third direction F3. One end of the cantilever 100 is connected to the mounting portion 33. Specifically in this embodiment, the mounting portion 33, the extension portion 34 and the cantilever 100 are integrally formed.

[0068] Since the cantilever 100 is an elastically deformable structure, the third transmission arm 30 moves relative to the housing 10 by causing the cantilever 100 to elastically deform. Specifically, when it is necessary to drive the touch control member 40 by the third transmission arm 30 to trigger the switch 2000, a force is applied to the extension portion 34, such as pressing the extension portion 34, to rotate the mounting portion 33. The mounting portion 33 drives the touch control member 40 to move along the first direction F1, so that the touch control member 40 triggers the switch 2000 along the third direction F3. When the mounting portion 33 rotates, the cantilever 100 elastically deforms, so that after the force applied to the extension portion 34 is withdrawn, the cantilever 100 drives the touch control member 40 and the third transmission arm 30 to reset.

[0069] It should be noted that the stiffness of the cantilever 100 beam can be adjusted by using cantilever 100 beams with different cross-sectional sizes, and further, the force and feel of pressing the third transmission arm 30 can be adjusted.

[0070] In another embodiment of the application, please refer to Figure 10 , the trigger assembly 1000 further includes a cantilever 100. One end of the cantilever 100 is connected to the third transmission arm 30, and the other end of the cantilever 100 is hinged to the housing 10.

[0071] By hinging the cantilever 100 to the housing 10, the cantilever 100 can rotate relative to the housing 10. In this way, when a force is applied to the extension portion 34 to rotate the mounting portion 33, the mounting portion 33 drives the touch control member 40 to move along the third direction F3, so that the touch control member 40 triggers the switch 2000 along the third direction F3. When the mounting portion 33 rotates, it drives the cantilever 100 to rotate relative to the housing 10.

[0072] It should be noted that other methods can also be adopted to movably connect the third transmission arm 30 to the housing 10, so that the third transmission arm 30 can drive the touch control member 40 to move along the third direction F3 relative to the housing 10.

[0073] In an embodiment of the application, please refer to Figure 11 , on the basis that the cantilever 100 is hinged to the housing 10, the triggering assembly 1000 further includes a third elastic member 110, and the third elastic member 110 abuts between the third transmission arm 30 and the housing 10.

[0074] Wherein, the third elastic member 110 is connected to the mounting portion 33 of the third transmission arm 30, and the third elastic member 110 is disposed opposite to the cantilever 100.

[0075] Optionally, the third elastic member 110 is a component with elasticity such as a compression spring or a torsion spring. The third elastic member 110 is used to reset the third transmission arm 30. The stiffness and compression amount of the third elastic member 110 can be adjusted to adjust the pressing force on the third transmission arm 30.

[0076] In an embodiment of the application, please refer to Figure 12 , the touch control member 40 is connected between the first transmission arm 20 and the second transmission arm 50. The first transmission arm 20 and the second transmission arm 50 are elastically deformable structures. The third transmission arm 30 is connected to the touch control member 40. The triggering assembly 1000 further includes a first button 60 and a second button 70. The first button 60 is slidably engaged with the housing 10 along the first direction F1 and is connected to the first transmission arm 20. The second button 70 is slidably engaged with the housing 10 along the second direction F2 and is connected to the second transmission arm 50. The first button 60 and the second button 70 respectively protrude from the outer side surface of the housing 10.

[0077] Optionally, the touch control member 40 and the third transmission arm 30 are integrally formed. For the convenience of distinguishing the touch control member 40 and the third transmission arm 30, taking Figure 12 the dotted line in as a reference, the part above the dotted line is the touch control member 40, and the part below the dotted line is the third transmission arm 30.

[0078] When it is necessary to drive the contact control member 40 to trigger the switch 2000 through the first transmission arm 20, an acting force in the first direction F1 is applied to the first button 60. For example, when pressing the first button 60, the first button 60 pushes the first transmission arm 20 to move in the first direction F1. The first transmission arm 20 undergoes elastic compressive deformation and drives the contact control member 40 to move in the first direction F1. Then, the switch 2000 is triggered through the first contact surface 41 on the contact control member 40. During the movement of the contact control member 40 in the first direction F1, the contact control member 40 drives the second transmission arm 50 and the third transmission arm 30 to move in the first direction F1, causing the second transmission arm 50 to undergo compressive deformation. When the acting force on the first button 60 is withdrawn, such as no longer pressing the first button 60, the first transmission arm 20 and the second transmission arm 50 rebound and drive the first button 60, the contact control member 40, and the third transmission arm 30 to reset.

[0079] Similarly, when it is necessary to drive the contact control member 40 to trigger the switch 2000 through the second transmission arm 50, an acting force in the second direction F2 is applied to the second button 70. For example, when pressing the second button 70, the second button 70 pushes the second transmission arm 50 to move in the second direction F2. The second transmission arm 50 undergoes elastic compressive deformation and drives the contact control member 40 to move in the second direction F2. Then, the switch 2000 is triggered through the second contact surface 42 on the contact control member 40. During the movement of the contact control member 40 in the second direction F2, the contact control member 40 drives the first transmission arm 20 and the third transmission arm 30 to move in the second direction F2, causing the first transmission arm 20 to undergo compressive deformation. When the acting force on the second button 70 is withdrawn, such as no longer pressing the second button 70, the first transmission arm 20 and the second transmission arm 50 rebound and drive the second button 70, the contact control member 40, and the third transmission arm 30 to reset.

[0080] When it is necessary to drive the contact control member 40 to trigger the switch 2000 through the third transmission arm 30, an acting force is applied to the third transmission arm 30. For example, when pressing the third transmission arm 30, the third transmission arm 30 drives the contact control member 40 to move in the third direction F3. Then, the switch 2000 is triggered through the connecting surface 43 on the contact control member 40. When the contact control member 40 moves in the third direction F3, it drives the first transmission arm 20 and the second transmission arm 50 to undergo elastic deformation.

[0081] Optionally, the first transmission arm 20, the second transmission arm 50, the contact control member 40, the third transmission arm 30, the first button 60, and the second button 70 are integrally formed. The manufacturing process is simple, there are few components, and the assembly steps are few, which is beneficial to reducing production costs. At the same time, with few components, it is not easy to loosen and generate abnormal noises or abnormal phenomena.

[0082] Please refer to Figure 1 、 Figure 2 and Figure 4, an embodiment of the present application further provides a surgical instrument, including a handle, a shaft assembly, and an end effector. Among them, the handle includes a switch 2000 and the trigger assembly 1000 of any one of the above.

[0083] The touch control 40 is correspondingly arranged with the switch 2000. The corresponding arrangement of the touch control 40 and the switch 2000 means that the touch control 40 can trigger the switch 2000 under the action of the first transmission arm 20, the second transmission arm 50, or the third transmission arm 30. Among them, the way the touch control 40 triggers the switch 2000 can be contact triggering or non-contact triggering. For example, contact triggering can be that the touch control 40 triggers the switch 2000 by contacting and pressing the switch 2000, and non-contact triggering can be that the touch control 40 triggers the switch 2000 by means of electromagnetic induction, etc.

[0084] Optionally, a contact head 2010 is arranged between the switch 2000 and the touch control 40. The contact head 2010 is a flexible structure, and the touch control 40 triggers the switch 2000 through the contact head 2010.

[0085] Compared with the prior art, the surgical instrument provided by the present application adopts the above trigger assembly 1000. The trigger assembly 1000 can trigger the switch 2000 from three directions, with strong flexibility, and can be applied to scenarios where the switch 2000 needs to be triggered from three directions. Moreover, the first transmission arm 20, the second transmission arm 50, and the third transmission arm 30 act on the same touch control 40, and the first transmission arm 20, the second transmission arm 50, the third transmission arm 30, and the touch control 40 are combined into a whole through the housing 10. The overall structure is simple, compact, and has a small volume, which is beneficial to reducing the space occupied by the trigger assembly 1000 in the surgical instrument.

[0086] An embodiment of the present application further provides a surgical instrument system, including a host and the above surgical instrument. The host is used to receive the instructions of the surgical instrument to provide energy for the surgical instrument.

[0087] Compared with the prior art, the surgical instrument system provided by the present application adopts the above surgical instrument. The trigger assembly 1000 of the surgical instrument can trigger the switch 2000 from three directions, with strong flexibility, and can be applied to scenarios where the switch 2000 needs to be triggered from three directions. Moreover, the first transmission arm 20, the second transmission arm 50, and the third transmission arm 30 act on the same touch control 40, and the first transmission arm 20, the second transmission arm 50, the third transmission arm 30, and the touch control 40 are combined into a whole through the housing 10. The overall structure is simple, compact, and has a small volume, which is beneficial to reducing the space occupied by the trigger assembly 1000 in the surgical instrument.

[0088] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included within the protection scope of the present application.

Claims

1. A trigger assembly (1000), the trigger assembly being supported by a housing (10) of a surgical instrument and being used to trigger a switch (2000); characterized in that: The trigger assembly (1000) comprises a first transmission arm (20), a second transmission arm (50), a third transmission arm (30) and a touch control part (40); the touch control part (40) is connected between the first transmission arm (20) and the second transmission arm (50); the first transmission arm (20) and the touch control part (40) are transmission-coordinated along a first direction (F1) to drive the touch control part (40) to move along the first direction (F1) so that the touch control part (40) triggers the switch (2000); the second transmission arm (50) and the touch control part (40) are transmission-coordinated along a second direction (F2) to drive the touch control part (40) to move along the first direction (F1) so that the touch control part (40) triggers the switch (2000); The third transmission arm (30) cooperates with the touch component (40) to drive the touch component (40) to move along the second direction (F2) so that the touch component (40) triggers the switch (2000), and the second direction (F2) is opposite to the first direction (F1); the third transmission arm (30) cooperates with the touch component (40) to drive along the third direction (F3) so that the touch component (40) triggers the switch (2000); the angle between the third direction (F3) and the first direction (F1) and the second direction (F2) is 80°-100°.

2. The trigger assembly (1000) according to claim 1, characterized in that: The touch control component (40) comprises a first touch surface (41) and a second touch surface (42); the first touch surface (41) and the second touch surface (42) are symmetrically arranged with respect to each other, and the first touch surface (41) and the second touch surface (42) are inclined relative to the first direction (F1).

3. The trigger assembly (1000) according to claim 2, characterized in that: The first touch-pressure surface (41) and the second touch-pressure surface (42) are both inclined planes, and the touch component (40) further comprises a connecting surface (43), and the first touch-pressure surface (41) is connected to the second touch-pressure surface (42) via the connecting surface (43).

4. The trigger assembly (1000) according to claim 1, characterized in that: The touch control component (40) is slidably connected to the third transmission arm (30) along the first direction (F1).

5. The trigger assembly (1000) according to claim 4, characterized in that: The touch control unit (40) is provided with a first guide structure (21), the third transmission arm (30) is provided with a second guide structure (31), and the first guide structure (21) and the second guide structure (31) are slidably matched along the first direction (F1).

6. The trigger assembly (1000) according to any one of claims 1 to 5, characterized in that: The trigger assembly (1000) further comprises a first button (60), a second button (70), a first elastic member (80) and a second elastic member (90); the first button (60) is slidably matched with the housing (10) along the first direction (F1); the second button (70) is slidably matched with the housing (10) along the second direction (F2); the first button (60) and the second button (70) respectively protrude from the outer side surface of the housing (10); the first elastic member (80) is abutted between the first button (60) and the first transmission arm (20); and the second elastic member (90) is abutted between the second button (70) and the second transmission arm (50).

7. The trigger assembly (1000) according to any one of claims 1 to 5, characterized in that: The trigger assembly (1000) further comprises a cantilever (100) and a third elastic member (110), one end of the cantilever (100) being connected to the third transmission arm (30), the other end of the cantilever (100) being hinged to the housing (10), and the third elastic member (110) being abutted between the third transmission arm (30) and the housing (10); or, The trigger assembly (1000) further comprises a cantilever (100), one end of the cantilever (100) being connected to the third transmission arm (30), and the other end of the cantilever (100) being used for being fixedly connected to the housing (10), and the cantilever (100) being an elastically deformable structure.

8. The trigger assembly (1000) according to any one of claims 1 to 5, characterized in that: The third direction (F3) is perpendicular to the first direction (F1) and the second direction (F2).

9. A surgical instrument, characterized in that: It comprises a handle, a shaft assembly and an end effector, wherein the handle comprises a switch and a trigger assembly (1000) as claimed in any one of claims 1 to 8.

10. A surgical instrument system, characterized in that: The device comprises a host and the surgical instrument as claimed in claim 9, wherein the host is used to receive instructions from the surgical instrument to provide energy to the surgical instrument.

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