Universal adjusting structure and surgical system

Abstract

The embodiment of the utility model provides a universal adjusting structure and a surgical system.The universal adjusting structure comprises an operating assembly and an adjusting assembly, the adjusting assembly comprises a locking piece and an adjusting piece, the locking piece comprises a locking block, a locking ball and a locking rod which are arranged in the first direction, and the adjusting piece comprises a ball cup provided with a containing cavity and a ball located in the containing cavity; one end of the locking rod can extend into the containing cavity and abut against the ball head. The side, close to the locking ball, of the locking block is provided with a first concave part, the locking block is connected with the operation assembly and can be driven by the operation assembly to move so that the locking ball can enter and exit from the first concave part, and in the process that the locking ball enters and exits from the first concave part, the locking rod can move in the first direction so as to be matched with the ball cup to achieve releasing or locking of the ball. According to the embodiment of the invention, the locking ball can smoothly enter or move out of the first concave part, so that the risk that the universal adjusting structure is jammed and the like in the process of releasing or locking the ball head is reduced, and the experience feeling of a user is further improved.

Description

Technical Field

[0001] This application belongs to the field of medical device technology, and in particular relates to a universal adjustment structure and surgical system. Background Technology

[0002] The universal adjustment structure is a mechanical connection device with multi-directional adjustment capabilities. It can move flexibly in multiple degrees of freedom and is widely used in industries such as industry, photography, medicine, and robotics.

[0003] Universal adjustment structures typically use ball joints to achieve multi-degree-of-freedom adjustment of the target instrument. In addition, to facilitate the assembly of the universal adjustment structure with the target instrument, a locking component can be set in the universal adjustment structure to lock and release the ball joint. However, in current universal adjustment structures, the locking component is prone to jamming during the locking or releasing of the ball joint, which affects the user experience. Utility Model Content

[0004] This application provides a universal adjustment structure and surgical system, which reduces the risk of jamming in the universal adjustment structure and improves the user experience.

[0005] In a first aspect, embodiments of this application provide a universal adjustment structure, including an operating component and an adjustment component. The adjustment component includes a locking member and an adjusting member. The locking member includes a locking block, a locking ball, and a locking rod arranged along a first direction. The locking block has a first recess on the side near the locking ball along the first direction. The first direction is parallel to the length direction of the locking rod. The locking block is connected to the operating component and is used to move under the drive of the operating component, so that the locking ball enters or moves out of the first recess. The adjusting member includes a ball head seat with a cavity and a ball head located in the cavity. The end of the locking rod away from the locking ball extends into the cavity and presses against the ball head.

[0006] In some embodiments, at least a portion of the inner wall of the first recess is arc-shaped.

[0007] In some embodiments, the operating component includes a drive shaft and an operating handle. The drive shaft extends along a second direction that intersects with a first direction. The drive shaft is threadedly connected to the operating handle. The drive shaft has a first protrusion that protrudes radially. A locking block is disposed around the drive shaft and abuts against the operating handle or the first protrusion on one side along the second direction.

[0008] In some embodiments, the adjusting assembly further includes a protective sleeve surrounding the outer periphery of the locking block, the sidewall of the protective sleeve having a through hole through which the locking ball presses against the locking block.

[0009] In some embodiments, the number of adjustment components is at least two, the at least two adjustment components are arranged sequentially along the second direction, and at least one adjustment component is rotatably arranged about the axis of the drive shaft.

[0010] In some embodiments, at least two adjusting components include a first adjusting component and a second adjusting component. The first adjusting component is rotatably disposed relative to the drive shaft. In the second adjusting component, the protective sleeve includes a first sub-segment and a second sub-segment. The first sub-segment is disposed around the outer periphery of the locking block, and the second sub-segment is disposed around the outer periphery of the drive shaft. One of the inner wall of the second sub-segment and the outer peripheral wall of the drive shaft forms a second recess, and the other forms a second protrusion. The second recess extends along a second direction, and the second protrusion is engaged in the second recess and is movably disposed in the second recess along the second direction.

[0011] In some embodiments, at least two adjusting components include a first adjusting component and a second adjusting component arranged adjacent to each other. In a second direction, the protective sleeve of the first adjusting component has a first end face tooth formed on the end face of the side of the second adjusting component near the second adjusting component, and the protective sleeve of the second adjusting component has a second end face tooth formed on the end face of the side of the first adjusting component near the first adjusting component. The first end face tooth and the second end face tooth are used to mesh with each other when the ball head is locked.

[0012] In some embodiments, the adjusting assembly further includes a return spring connected to the locking block.

[0013] In some embodiments, in the first direction, at least one end of the locking lever is formed with a third recess for receiving a locking ball or ball head.

[0014] Secondly, embodiments of this application provide a surgical system including any of the above-mentioned universal adjustment structures.

[0015] This application provides a universal adjustment structure and a surgical system. The universal adjustment structure includes an operating component and an adjustment component. The adjustment component includes a locking member and an adjusting member. The locking member includes a locking block, a locking ball, and a locking rod arranged along a first direction. The adjusting member includes a ball head seat with a cavity and a ball head located in the cavity. The end of the locking rod away from the locking ball can extend into the cavity and press against the ball head. The locking block has a first recess on the side along the first direction near the locking ball. The locking block is connected to the operating component and can move under the drive of the operating component, causing the locking ball to enter or move out of the first recess. During the process of the locking ball entering or moving out of the first recess, the locking rod can move along the first direction to cooperate with the ball head seat to release or lock the ball head. This application embodiment utilizes the cooperation between the locking ball and the first recess to release or lock the ball head. The locking ball can smoothly enter or move out of the first recess by its own rolling, thereby helping to reduce the risk of jamming or other issues in the universal adjustment structure during the release or locking of the ball head, and thus improving the user experience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the universal adjustment structure provided in some embodiments of this application;

[0018] Figure 2 for Figure 1 A magnified view of a section at point AA;

[0019] Figure 3 for Figure 1 A magnified view of the area at point BB;

[0020] Figure 4 This is another schematic diagram of the universal adjustment structure provided in some embodiments of this application;

[0021] Figure 5 This is an exploded view of the protective sleeve and drive shaft in the universal adjustment structure provided in some embodiments of this application;

[0022] Figure 6 This is another schematic diagram of the universal adjustment structure provided in some embodiments of this application.

[0023] Explanation of reference numerals in the attached figures:

[0024] Operating component 100; drive shaft 110; first protrusion 111; operating handle 120;

[0025] Adjustment component 200; First adjustment component 200a; Second adjustment component 200b; Locking component 210; Locking block 211; Locking ball 212; Locking rod 213; Adjustment component 220; Ball head seat 221; Ball head 222; Ball body 2221; Connecting part 2222; Protective sleeve 230; First sub-segment 231; Second sub-segment 232; First end face tooth 233a; Second end face tooth 233b; Return spring 240;

[0026] Connector 300; First recessed portion K1; Cavity K2; Second recessed portion S1; Second protrusion S2; First direction X; Second direction Y. Detailed Implementation

[0027] The features and exemplary embodiments of various aspects of this application will now be described in detail. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this application and are not configured to limit this application. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples of this application.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0029] Universal adjustment structures typically utilize ball joints to achieve multi-degree-of-freedom adjustment of the target instrument. Furthermore, to facilitate assembly between the universal adjustment structure and the target instrument, a locking assembly can be incorporated into the universal adjustment structure to lock and release the ball joint. Currently, the locking assembly can consist of a wedge block and a top shaft. One end of the top shaft presses against the ball joint, while the other end forms a wedge surface for engagement with the wedge surface of the wedge block. When the wedge block moves radially along the top shaft, the two wedge surfaces move relative to each other, causing the top shaft to move axially under the action of the wedge block, thereby locking and adjusting the ball joint.

[0030] However, in the above-mentioned locking assembly, the top shaft is prone to rotate around its own axis, which causes the two wedge surfaces to intersect rather than be parallel. When the wedge block moves radially, the friction between the two wedge surfaces will increase significantly, which can easily cause jamming between the wedge block and the top shaft, seriously affecting the user experience.

[0031] To address at least some of the aforementioned technical problems, embodiments of this application provide a universal adjustment structure and a surgical system. The universal adjustment structure and surgical system provided in the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0032] Please see Figure 1 and Figure 2In a first aspect, embodiments of this application provide a universal adjustment structure, including an operation component 100 and an adjustment component 200. The adjustment component 200 includes a locking member 210 and an adjustment member 220. The locking member 210 includes a locking block 211, a locking ball 212, and a locking rod 213 arranged along a first direction X. The locking block 211 has a first recess K1 on the side near the locking ball 212 along the first direction X. The first direction X is parallel to the length direction of the locking rod 213. The locking block 211 is connected to the operation component 100 and is used to move under the drive of the operation component 100, so that the locking ball 212 enters or moves out of the first recess K1. The adjustment member 220 includes a ball head seat 221 with a cavity K2 and a ball head 222 located in the cavity K2. The end of the locking rod 213 away from the locking ball 212 extends into the cavity K2 and presses against the ball head 222.

[0033] Specifically, the adjustment assembly 200 includes a locking member 210 and an adjustment member 220. The adjustment member 220 is used to achieve multi-degree-of-freedom adjustment of the target instrument. The adjustment member 220 may include a ball head seat 221 and a ball head 222. The ball head seat 221 may have a cavity K2 inside, and the ball head 222 is located in the cavity K2. The ball head 222 being located in the cavity K2 may mean that a part of the ball head 222 is located inside the cavity K2, while another part is located outside the cavity K2. Optionally, the ball head 222 may include a ball 2221 and a connecting part 2222 connected to the ball 2221. The ball 2221 may be disposed in the cavity K2, and the connecting part 2222 may pass through the ball head seat 221 and extend out of the cavity K2 for connection to the target instrument. By rotating the ball 2221 within the cavity K2, multi-degree-of-freedom adjustment of the target instrument can be achieved. Optionally, the adjustment assembly 200 may also include a connector 300, which can be connected to the connection portion 2222 of the ball head 222, and the connector 300 can also be used to connect to the target instrument.

[0034] The locking member 210 is used to lock or release the ball head 222 in the adjusting member 220. The locking member 210 includes a locking block 211, a locking ball 212, and a locking rod 213. The locking rod 213 extends along a first direction X, with the locking ball 212 at one end and the other end passing through the ball head seat 221 and extending into the cavity K2 to press against the ball head 222. The locking block 211 is located on the side of the locking ball 212 away from the locking rod 213 along the first direction X. The locking block 211 has a first recess K1 on the side of the locking block 211 close to the locking ball 212 along the first direction X. The locking block 211 is connected to the operating component 100 and can move under the drive of the operating component 100, so that the locking ball 212 enters or moves out of the first recess K1.

[0035] It can be seen that when the locking ball 212 moves out of the first recess K1, the locking block 211 can apply a locking force to the locking ball 212 and the locking rod 213 in the direction close to the ball head 222, so as to push the locking ball 212 and the locking rod 213 to move in the direction close to the ball head 222. The end of the locking rod 213 away from the locking ball 212 can press the ball head 222 into the ball head seat 221, thereby locking the ball head 222. When the locking ball 212 enters the first recess K1, the locking force of the locking block 211 on the locking ball 212 and the locking rod 213 decreases or even disappears, and the locking rod 213 can release the ball head 222.

[0036] It should be noted that the first recess K1 may include a bottom wall surface and a plurality of side wall surfaces surrounding the bottom wall surface, and the locking ball 212 may enter and exit the first recess K1 via at least one side wall surface. Optionally, at least one side wall surface of the first recess K1 may be inclined outward to form a slope to facilitate the entry and exit of the locking ball 212 into the first recess K1. Optionally, at least one side wall surface of the first recess K1 may be a plane or an arc surface, or at least one side wall surface of the first recess K1 may be composed of a plurality of minute planes; this embodiment does not limit this.

[0037] This embodiment does not limit the movement mode and direction of the locking block 211, as long as the locking ball 212 can enter or exit the first recess K1 during the movement of the locking block 211. For example, the operating component 100 can be used to drive the locking block 211 to move along the second direction Y, and the locking ball 212 enters and exits the first recess K1 during the movement of the locking block 211. Alternatively, the operating component 100 can be used to drive the locking block 211 to rotate about an axis extending in the second direction Y, and the locking ball 212 can enter and exit the first recess K1 during the rotation of the locking block 211. The second direction Y intersects or is perpendicular to the first direction X; for example, the second direction Y can be the width direction of the locking block 211.

[0038] The operating component 100 is used to drive the locking block 211 to move. The structure of the operating component 100 can vary depending on the different movement modes of the locking block 211. For example, the operating component 100 may include a translation mechanism such as a cylinder or hydraulic cylinder, which can drive the locking block 211 to move along the second direction Y. Alternatively, the operating component 100 may include a rotation mechanism such as a rotary motor, which can drive the locking block 211 to rotate. Alternatively, the operating component 100 may include an operating handle 120 and a drive shaft 110 threadedly connected to the operating handle 120, which, by turning the operating handle 120, causes the drive shaft 110 to drive the locking block 211 to move along the second direction Y.

[0039] In this embodiment, by means of the cooperation between the locking ball 212 and the first recess K1 of the locking block 211, the locking rod 213 releases or locks the ball head 222. The locking ball 212 can smoothly enter or move out of the first recess K1 by its own rolling, which helps to reduce the risk of jamming or other problems in the universal adjustment structure during the release or locking of the ball head 222, thereby improving the user experience.

[0040] In the universal adjustment structure of this embodiment, the number of adjustment components 200 can be one or more. When there are multiple adjustment components 200, the ball heads 222 of the multiple adjustment components 200 can be connected to different target instruments respectively. Exemplarily, the universal adjustment structure of this application embodiment can be applied to the field of medical devices, and can be used to adjust surgical instruments with multiple degrees of freedom during surgery. When there are multiple adjustment components 200, the ball head 222 of one adjustment component 200 can be connected to the operating table, and the ball heads 222 of other adjustment components 200 can be connected to surgical instruments.

[0041] Please continue reading. Figure 2 In some embodiments, at least part of the inner wall of the first recess K1 is arc-shaped, and the locking ball 212 can roll more smoothly on the arc-shaped inner wall, which helps to further reduce the difficulty of the locking ball 212 entering and exiting the first recess K1, and further reduces the risk of jamming or other situations in the process of locking or releasing the ball head 222 of the universal adjustment structure.

[0042] It should be noted that when at least part of the inner wall of the first recess K1 is arc-shaped, at least one side wall of the first recess K1 can be arc-shaped, and at least one side wall can also form an arc transition with the bottom wall, so that the locking ball 212 can roll more smoothly in the process of entering and exiting the first recess K1.

[0043] Optionally, the arc-shaped inner wall can form an angle of 20° to 45° with the plane containing the second direction Y, so that the locking ball 212 can smoothly enter and exit the first recess K1 through the inner wall of this part.

[0044] Please see Figure 3 In some embodiments, the operating component 100 includes a drive shaft 110 and an operating handle 120. The drive shaft 110 extends along a second direction Y, which intersects with a first direction X. The drive shaft 110 is threadedly connected to the operating handle 120. The drive shaft 110 has a first protrusion 111 that protrudes radially. A locking block 211 is disposed around the drive shaft 110. The locking block 211 abuts against the operating handle 120 or the first protrusion 111 on one side along the second direction Y.

[0045] One of the operating handle 120 and the drive shaft 110 may be provided with external threads, and the other may be provided with internal threads. The threaded connection between the operating handle 120 and the drive shaft 110 is achieved through the meshing of the internal and external threads. The operator can drive the drive shaft 110 to move in the second direction Y by turning the operating handle 120.

[0046] A first protrusion 111 is formed on the drive shaft 110, protruding radially. The first protrusion 111 is spaced apart from the operating handle 120 in the second direction Y. A locking block 211 is arranged around the drive shaft 110, and can be located between the operating handle 120 and the first protrusion 111. During the movement of the drive shaft 110 in the second direction Y, the operating handle 120 and the first protrusion 111 can move closer to or further away from each other in the second direction Y. The locking block 211 can move in the second direction Y under the action of the operating handle 120 or the first protrusion 111.

[0047] In these embodiments, the locking block 211 is arranged around the drive shaft 110 and is threadedly connected to the drive shaft 110 via the operating handle 120. During the process of turning the operating handle 120, the operating handle 120 and the first protrusion 111 can move towards each other or away from each other along the second direction Y, thereby driving the locking block 211 to move along the second direction Y, so that the locking ball 212 can enter or move out of the first recess K1 during the movement of the locking block 211. The structure is simple, the transmission is stable, and it helps to reduce the production cost of the universal adjustment structure.

[0048] Please continue reading. Figure 3 In some embodiments, the adjusting assembly 200 further includes a protective sleeve 230, which is disposed around the outer periphery of the locking block 211. The sidewall of the protective sleeve 230 has a through hole, through which the locking ball 212 presses against the locking block 211.

[0049] In these embodiments, the protective sleeve 230 is arranged around the outer periphery of the locking block 211. On the one hand, it can protect the locking block 211 and the drive shaft 110 and improve their service life. On the other hand, the protective sleeve 230 can also limit the movement of the locking block 211 and improve the stability of the locking block 211.

[0050] It should be noted that the protective sleeve 230 surrounding the outer periphery of the locking block 211 can mean that all the protective sleeves 230 are located on the outer periphery of the locking block 211, or it can mean that a part of the protective sleeve 230 is located on the outer periphery of the locking block 211 and another part is located in other positions. This embodiment does not limit this.

[0051] Optionally, the adjusting assembly 200 may also include a connecting rod, which is arranged around the outer periphery of the locking rod 213. One end of the connecting rod is connected to the side wall of the protective sleeve 230, and the other end can be connected to the ball head seat 221. The locking rod 213 can be protected and fixed by the connecting rod, which helps to improve the service life and stability of the locking rod 213.

[0052] Optionally, the adjustment assembly 200 may also include a limiting sleeve, which can be engaged with the connecting rod and the ball head seat 221 respectively to realize the connection between the connecting rod and the ball head seat 221.

[0053] Optionally, the adjusting assembly 200 may also include an adjusting shim, which may be disposed between the limiting sleeve and the connecting rod to provide stress buffering.

[0054] Please see Figure 4 In some embodiments, the number of adjustment components 200 is at least two, and at least two adjustment components 200 are arranged sequentially along the second direction Y. At least one adjustment component 200 is rotatably arranged around the axis of the drive shaft 110, so that the position of the target instrument connected to the ball head 222 of the adjustment component 200 can be further adjusted.

[0055] Specifically, the number of adjustment components 200 can be two or more. The locking blocks 211 of each adjustment component 200 can be sequentially arranged on the transmission shaft 110 along the second direction Y, and are all located between the operating handle 120 and the first protrusion 111. Adjacent locking blocks 211 can be arranged sequentially or at intervals. This embodiment does not limit this.

[0056] Please see Figure 4 and Figure 5 In some embodiments, at least two adjustment components 200 include a first adjustment component 200a and a second adjustment component 200b. The first adjustment component 200a is rotatably disposed relative to the drive shaft 110. In the second adjustment component 200b, the protective sleeve 230 includes a first sub-segment 231 and a second sub-segment 232. The first sub-segment 231 is disposed around the outer periphery of the locking block 211, and the second sub-segment 232 is disposed around the outer periphery of the drive shaft 110. One of the inner wall of the second sub-segment 232 and the outer peripheral wall of the drive shaft 110 are formed with a second recess S1, and the other is formed with a second protrusion S2. The second recess S1 extends along the second direction Y, and the second protrusion S2 is engaged in the second recess S1 and is movably disposed in the second recess S1 along the second direction Y.

[0057] Specifically, in the first adjustment assembly 200a, both the locking block 211 and the protective sleeve 230 can rotate relative to the drive shaft 110 to further adjust the position of the target instrument connected to the corresponding ball head 222.

[0058] In the second adjusting assembly 200b, the protective sleeve 230 includes a first segment 231 and a second segment 232. The first segment 231 is arranged around the outer periphery of the locking block 211 to protect and limit the locking block 211. The second segment 232 is arranged around the outer periphery of the drive shaft 110, and the inner wall of the second segment 232 can contact the corresponding outer peripheral wall of the drive shaft 110.

[0059] In these embodiments, a second recess S1 is formed on one of the inner wall of the second segment 232 and the outer peripheral wall of the drive shaft 110, and a second protrusion S2 is formed on the other. By engaging the second protrusion S2 in the second recess S1, the second protrusion S2 and the second recess S1 can be used to resist the torque during the rotation of the drive shaft 110, reduce the torque borne by the locking ball 212 and the first recess K1, reduce the risk of damage to the contact surface of the locking ball 212 and the first recess K1 due to long-term torque, and further reduce the risk of the locking block 211 being difficult to reset due to excessive local friction, thus effectively reducing the jamming of the adjustment component 200.

[0060] Furthermore, in these embodiments, when the second recess S1 extends along the second direction Y and the second protrusion S2 is engaged in the second recess S1, it can move along the second direction Y within the second recess S1, thereby reducing the influence of the arrangement of the second recess S1 and the second protrusion S2 on the movement of the locking block 211, and ensuring that the locking block 211 can move along the second direction Y under the action of the first protrusion 111 of the drive shaft 110 or the operating handle 120.

[0061] It should be noted that, in these embodiments, although the second adjustment component 200b cannot rotate relative to the drive shaft 110, it can rotate together with the drive shaft 110. That is, by controlling the drive shaft 110 to rotate around its own axis, the second adjustment component 200b can be driven to rotate around the axis of the drive shaft 110.

[0062] The second recess S1 is formed on one of the inner wall of the second segment 232 and the outer peripheral wall of the drive shaft 110, and the second protrusion S2 is formed on the other. This can mean that the second protrusion S2 is formed on the inner wall of the second segment 232 and the second recess S1 is formed on the outer peripheral wall of the drive shaft 110; or it can mean that the second recess S1 is formed on the inner wall of the second segment 232 and the second protrusion S2 is formed on the outer peripheral wall of the drive shaft 110.

[0063] The cross-sectional shapes of the second recess S1 and the second protrusion S2 are adapted to each other, and their cross-sectional shapes can be various, such as conical or square. The number of the second protrusion S2 and the second recess S1 corresponds to the number of the second protrusion S2 and the second recess S1. The number of the second protrusion S2 and the second recess S1 can be one or multiple at the same time. When the number of the second protrusion S2 and the second recess S1 is multiple, each second protrusion S2 and each second recess S1 can be arranged circumferentially along the bearing axis.

[0064] For example, when the inner wall of the second sub-segment 232 forms a plurality of second recesses S1, the outer peripheral wall of the drive shaft 110 forms a plurality of corresponding second protrusions S2, and the cross-section of each second protrusion S2 and the second recess S1 is approximately conical, then a part of the drive shaft 110 can be approximately a square shaft, and the inner wall of the second sub-segment 232 is approximately a square hole.

[0065] Please see Figure 6 In some embodiments, at least two adjusting components 200 include a first adjusting component 200a and a second adjusting component 200b arranged adjacent to each other. In the second direction Y, the protective sleeve 230 of the first adjusting component 200a has a first end face tooth 233a formed on the end face of the side of the first adjusting component 200b near the second adjusting component 200b, and the protective sleeve of the second adjusting component 200b has a second end face tooth 233b formed on the end face of the side of the first adjusting component 200a near the first adjusting component 200a. The first end face tooth 233a and the second end face tooth 233b are used to mesh with each other when the ball head 222 is locked, so as to lock the first adjusting component 200a and the second adjusting component 200b in the circumferential direction of the drive shaft 110, thereby reducing the risk that the first adjusting component 200a and the second adjusting component 200b will rotate relative to each other around the axis of the drive shaft 110 due to accident.

[0066] It should be noted that when the drive shaft 110 and the protective sleeve 230 of the second adjusting component 200b are engaged through the second recess S1 and the second protrusion S2, the second adjusting component 200b and the drive shaft 110 can be circumferentially fixed, and the second adjusting component 200b cannot be driven relative to the drive shaft 110. On this basis, the first end face teeth 233a of the first adjusting component 200a and the second end face teeth 233b of the second adjusting component 200b are further configured to mesh with each other when the ball head 222 is locked, thereby achieving circumferential fixation of the first adjusting component 200a when the ball head 222 is locked, reducing the risk of the first adjusting component 200a and the second adjusting component 200b rotating relative to the drive shaft 110 when the ball head 222 is locked.

[0067] Please continue reading. Figures 1 to 4 In some embodiments, the adjustment assembly 200 further includes a return spring 240 connected to the locking block 211.

[0068] Specifically, one end of the reset spring can be connected to the locking block 211, and the other end can be fixedly connected to the protective sleeve 230 or the operating handle 120, etc. When the operating component 100 applies force to the locking block 211, causing it to move, the reset spring 240 undergoes elastic deformation under the action of the locking block 211. After the operating component 100 stops applying force, the reset spring 240 can restore its deformation, driving the locking block 211 to reset. During the movement and reset of the locking block 211, the locking ball 212 can enter or move out of the first recess K1.

[0069] In these embodiments, the locking block 211 is automatically reset by the reset elasticity, without the need for the operating component 100 to drive the locking block 211 to reset, which helps to reduce the difficulty of operation and save operating costs.

[0070] In some embodiments, at least one end of the locking rod 213 is formed with a third recess in the first direction X to accommodate the locking ball 212 or the ball head 222, which can constrain the locking ball 212 or the ball head 222 and reduce the risk of the locking ball 212 or the ball head 222 moving.

[0071] It should be noted that the formation of a third recess at at least one end of the locking rod 213 can mean that the third recess is formed at the end of the locking rod 213 near the locking ball 212 or the end near the ball head 222, or it can mean that the third recess is formed at both ends of the locking rod 213. This embodiment does not limit this.

[0072] Optionally, at least part of the inner wall of the third recess is arc-shaped, which can reduce the risk of jamming when the locking ball 212 or the ball head 222 rolls.

[0073] Secondly, embodiments of this application provide a surgical system including the universal adjustment structure described above. The surgical system provided by embodiments of this application has the technical effects of the universal adjustment structure in any of the above embodiments, and the explanations of structures and terms that are the same as or corresponding to those in the above embodiments will not be repeated here.

[0074] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A universal adjustment structure, characterized in that, include: Operational components; An adjusting assembly includes a locking member and an adjusting member. The locking member includes a locking block, a locking ball, and a locking rod arranged along a first direction. The locking block has a first recess on the side near the locking ball along the first direction, and the first direction is parallel to the length direction of the locking rod. The locking block is connected to the operating component and is used to move under the drive of the operating component, so that the locking ball enters or moves out of the first recess. The adjusting member includes a ball head seat with a cavity and a ball head located in the cavity. The end of the locking rod away from the locking ball extends into the cavity and presses against the ball head.

2. The universal adjustment structure according to claim 1, characterized in that, At least a portion of the inner wall of the first recess is arc-shaped.

3. The universal adjustment structure according to claim 1, characterized in that, The operating component includes a drive shaft and an operating handle, the drive shaft extending along a second direction that intersects the first direction. The drive shaft is threadedly connected to the operating handle. The drive shaft has a first protrusion that protrudes radially. The locking block is arranged around the drive shaft. The locking block abuts against the operating handle or the first protrusion on one side along the second direction.

4. The universal adjustment structure according to claim 3, characterized in that, The adjusting assembly also includes a protective sleeve, which is disposed around the outer periphery of the locking block. The side wall of the protective sleeve has a through hole, through which the locking ball presses against the locking block.

5. The universal adjustment structure according to claim 4, characterized in that, The number of adjustment components is at least two, and at least two adjustment components are arranged sequentially along the second direction. At least one adjustment component is rotatably arranged about the axis of the transmission shaft.

6. The universal adjustment structure according to claim 5, characterized in that, At least two of the said adjustment components include a first adjustment component and a second adjustment component. The first adjustment component is rotatably disposed relative to the drive shaft; In the second adjustment assembly, the protective sleeve includes a first sub-segment and a second sub-segment. The first sub-segment is arranged around the outer periphery of the locking block, and the second sub-segment is arranged around the outer periphery of the drive shaft. One of the inner wall of the second sub-segment and the outer peripheral wall of the drive shaft forms a second recess, and the other forms a second protrusion. The second recess extends along the second direction, and the second protrusion is engaged in the second recess and is movably disposed in the second recess along the second direction.

7. The universal adjustment structure according to claim 5, characterized in that, At least two of the said adjustment components include a first adjustment component and a second adjustment component arranged adjacent to each other. In the second direction, the protective sleeve of the first adjusting component has a first end face tooth formed on one side end face near the second adjusting component, and the protective sleeve of the second adjusting component has a second end face tooth formed on one side end face near the first adjusting component. The first end face tooth and the second end face tooth are used to mesh with each other when the ball head is locked.

8. The universal adjustment structure according to any one of claims 1 to 7, characterized in that, The adjusting assembly also includes a return spring, which is connected to the locking block.

9. The universal adjustment structure according to any one of claims 1 to 7, characterized in that, In the first direction, at least one end of the locking rod is formed with a third recess for accommodating the locking ball or the ball head.

10. A surgical system, characterized in that, Includes the universal adjustment structure as described in any one of claims 1 to 9.

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