Surgical posture adjustment device and posture adjustment system

Abstract

This invention relates to a surgical posture adjustment device and system. The device includes a first joint adjustment component, a second joint adjustment component, and a third joint adjustment component. The second joint adjustment component is connected to the first joint adjustment component, and the third joint adjustment component is connected to the second joint adjustment component. The third joint adjustment component has an installation channel. The first joint adjustment component drives the second joint adjustment component to rotate around a first direction. The second joint adjustment component drives the third joint adjustment component to rotate and move around a second direction. The third joint adjustment component can rotate relative to the second joint adjustment component around a third direction. The first, second, and third directions are all perpendicular to each other. By configuring the first, second, and third joint adjustment components, the installation channel can move in space, achieving multi-degree-of-freedom adjustment of posture and position to align with the target path, thereby improving adjustment accuracy and efficiency.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to surgical posture adjustment devices and systems. Background Technology

[0002] In neurosurgery, surgeons are required to strictly control the orientation and position of instruments to avoid damaging other brain tissues. The axes of surgical instruments (such as biopsy needles and drainage tubes) need to be aligned with the planned surgical path. Current techniques often utilize adjustable supports to adjust the axial position and alignment of the surgical instrument channels to the planned path, effectively assisting the surgeon in maintaining proper posture. However, existing adjustable supports have low precision, affecting surgical efficiency. Summary of the Invention

[0003] Therefore, it is necessary to provide a surgical posture adjustment device to address the technical problem that the existing adjustment brackets have low adjustment accuracy, which affects the efficiency of surgery.

[0004] A surgical posture adjustment device includes a first joint adjustment component, a second joint adjustment component, and a third joint adjustment component;

[0005] The second joint adjustment component is connected to the first joint adjustment component, and the third joint adjustment component is connected to the second joint adjustment component. The third joint adjustment component is provided with an installation channel.

[0006] The first joint adjustment component is used to drive the second joint adjustment component to rotate around a first direction, and the second joint adjustment component is used to drive the third joint adjustment component to rotate around a second direction and move along the second direction. The third joint adjustment component is capable of rotating relative to the second joint adjustment component around a third direction, wherein the first direction, the second direction and the third direction are all perpendicular to each other.

[0007] In one embodiment, the first joint adjustment assembly includes:

[0008] Mounting base;

[0009] A rotating component is rotatably connected to the mounting base about the first direction, and the second joint adjustment assembly is mounted on the rotating component;

[0010] A brake block, connected to the rotating member, is movable relative to the mounting base to press against the mounting base, thereby restricting the rotation of the rotating member relative to the mounting base.

[0011] In one embodiment, the rotating member includes a support frame and a handwheel. The support frame has a mounting hole, the handwheel is received in the mounting hole and abuts against the wall of the mounting hole, and a brake block extends into the mounting hole from the side opposite to the mounting base and is threadedly connected to the handwheel. The handwheel is configured to drive the brake block to move when rotating relative to the support frame, so that the brake block abuts against the mounting base.

[0012] In one embodiment, the mounting base is sleeved on the support frame, and there are two brake blocks arranged opposite to each other with opposite thread directions on their outer peripheral surfaces. The two brake blocks are configured to simultaneously abut against the mounting base when the handwheel is rotated, so as to limit the support frame from shifting in the extension direction of the brake blocks.

[0013] In one embodiment, the support frame has a sliding hole communicating with the mounting hole, the wall of the sliding hole has a limiting member, the brake block has a mating groove corresponding to the limiting member, the limiting member is accommodated in the mating groove, the limiting member and the mating groove are movable relative to each other, and the limiting member is configured to abut against the groove wall of the mating groove when the brake block is pressed against the mounting seat, so as to restrict the movement of the brake block relative to the mounting seat.

[0014] In one embodiment, the second joint adjustment component includes:

[0015] A sleeve is installed on the first joint adjustment assembly, and the sleeve is provided with a mating hole;

[0016] An adjusting arm is inserted into the mating hole. The adjusting arm is slidably connected to the wall of the mating hole along the second direction, and the adjusting arm is rotatable relative to the wall of the mating hole around the second direction.

[0017] A locking element is inserted through the opening of the sleeve. The locking element is used to tighten the opening to restrict the rotation and movement of the adjusting arm relative to the sleeve.

[0018] In one embodiment, the sleeve includes a first pipe segment and a second pipe segment arranged along the second direction, with a gap between the first pipe segment and the second pipe segment. One side of the first pipe segment is connected to the second pipe segment in a radial direction, and the other side is provided with an adjustment channel communicating with the mating hole. The locking member passes through the side wall of the adjustment channel and is used to tighten the adjustment channel to restrict the rotation and movement of the adjustment arm relative to the sleeve.

[0019] In one embodiment, the second joint adjustment assembly further includes a sealing element, the sealing element comprising:

[0020] The sliding block is provided with a mounting groove and a limiting hole for the adjusting arm to pass through. The limiting hole communicates with the mounting groove. The sliding block is used to abut against the end of the sleeve away from the third joint adjusting assembly.

[0021] An elastic element is accommodated in the mounting groove, with one end of the elastic element connected to the groove wall of the mounting groove and the other end abutting against the adjusting arm that passes through the limiting hole;

[0022] A button, at least partially confined within the mounting groove and slidably connected to the groove wall, is configured to be close to the elastic element to compress the elastic element and release the adjusting arm.

[0023] In one embodiment, the second joint adjustment assembly is provided with an assembly hole, and the third joint adjustment assembly includes a rotating seat, a mating end, and a fastener. The mating end is connected to the rotating seat and passes through the assembly hole. The mating end is rotatably connected to the wall of the assembly hole about the third direction. The mounting channel is provided in the rotating seat. The fastener is connected to one end of the mating end that extends out of the assembly hole and is used to abut against the second joint adjustment assembly to restrict the rotation of the mating end relative to the second joint adjustment assembly.

[0024] In one embodiment, the second joint adjustment assembly is provided with a protrusion, the mounting hole is partially disposed within the protrusion, the fastener includes a positioning block and a fixing block, the positioning block is sleeved on the protrusion and threadedly connected to the protrusion, the fixing block is connected to the mating end and partially protrudes outside the protrusion, the positioning block is configured to move relative to the mating end when rotating relative to the mating end, so as to abut against the fixing block, thereby restricting the rotation of the mating end relative to the second joint adjustment assembly.

[0025] In one embodiment, the positioning block includes a rotating ring and a sliding ring. The rotating ring is sleeved on the mating end and threadedly connected to the mating end. The sliding ring is sleeved on the mating end. The rotating ring is configured to move relative to the mating end when rotating relative to the mating end, so as to push the sliding ring to move so that the sliding ring abuts against the fixing block.

[0026] In one embodiment, the fixing block includes a mating rod and a top block. The mating rod is threaded to the mating end, and the top block is rotatably connected to the mating rod. One end of the top block is used to abut against the mating rod, and the other end of the top block is used to abut against the positioning block.

[0027] The present invention also provides a pose adjustment system that can solve at least one of the above-mentioned technical problems.

[0028] A pose adjustment system includes a navigation device and the aforementioned surgical pose adjustment device. The navigation device has a navigation target for installation on the installation channel, and the navigation device is used to position the navigation target to determine the pose of the installation channel.

[0029] Beneficial effects:

[0030] The surgical posture adjustment device provided in this invention includes a first joint adjustment component, a second joint adjustment component, and a third joint adjustment component. The second joint adjustment component is connected to the first joint adjustment component, and the third joint adjustment component is connected to the second joint adjustment component. The third joint adjustment component has an installation channel. The first joint adjustment component drives the second joint adjustment component to rotate around a first direction, and the second joint adjustment component drives the third joint adjustment component to rotate around a second direction and move along the second direction. The third joint adjustment component can rotate relative to the second joint adjustment component around a third direction, wherein the first direction, the second direction, and the third direction are all perpendicular to each other. In this application, the first joint adjustment component drives the second joint adjustment component to rotate around the first direction, and the second joint adjustment component drives the third joint adjustment component to rotate around the second direction and move along the second direction. The third joint adjustment component can rotate relative to the second joint adjustment component around a third direction, allowing the installation channel to move in space. This achieves multi-degree-of-freedom adjustment of the posture and position of the installation channel, aligning the axis of the installation channel with the target path, thereby improving the adjustment accuracy and efficiency of the surgical posture adjustment device.

[0031] The present invention also provides a pose adjustment system, including a navigation device and the aforementioned surgical pose adjustment device. The navigation device has a navigation target mounted on an installation channel, and the navigation device is used to position the navigation target to determine the pose of the installation channel. This pose adjustment system can achieve at least one of the aforementioned technical effects. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of a surgical posture adjustment device provided in an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the first joint adjustment component in a surgical posture adjustment device provided in an embodiment of the present invention;

[0034] Figure 3 This is a partial exploded view of the first joint adjustment component in a surgical posture adjustment device provided in an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of a support frame in a surgical posture adjustment device provided in an embodiment of the present invention;

[0036] Figure 5This is a cross-sectional view of the first joint adjustment component in a surgical posture adjustment device provided according to an embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the second joint adjustment component in a surgical posture adjustment device provided in an embodiment of the present invention;

[0038] Figure 7 This is a schematic diagram of the sealing element in the second joint adjustment assembly of a surgical posture adjustment device provided in an embodiment of the present invention;

[0039] Figure 8 This is a partial schematic diagram of the second joint adjustment component in a surgical posture adjustment device provided in an embodiment of the present invention;

[0040] Figure 9 This is a schematic diagram showing the cooperation between the third joint adjustment component and the second joint adjustment component in a surgical posture adjustment device provided in an embodiment of the present invention;

[0041] Figure 10 This is a cross-sectional view of the third joint adjustment component and the second joint adjustment component in a surgical posture adjustment device provided in an embodiment of the present invention.

[0042] Icon labels:

[0043] 100-First joint adjustment assembly; 110-Mounting base; 111-Rotating hole; 120-Rotating component; 121-Support frame; 122-Handwheel; 123-Mounting hole; 125-Boss; 126-Table surface; 127-Sliding hole; 128-Limiting component; 129-Support arm; 130-Brake block; 131-Limiting step; 132-Matching groove; 133-Adjusting hole; 200-Second joint adjustment assembly ; 210-Sleeve; 211-First pipe section; 212-Second pipe section; 213-Gap; 214-Pipe opening; 215-Adjustment channel; 216-First section; 217-Second section; 218-Third section; 219-Notch; 221-First connecting hole; 222-Second connecting hole; 223-Matching hole; 224-Scale line; 230-Adjusting arm; 231-First connecting rod; 232-Second connecting rod; 2 33-Limiting block; 240-Locking component; 250-Sealing component; 251-Sliding block; 252-Button; 253-Elastic component; 254-Mounting groove; 255-Limiting hole; 260-Mating seat; 261-First mating plate; 262-Second mating plate; 263-Assembly hole; 264-Protrusion; 265-First mating section; 266-Second mating section; 300-Third joint adjustment assembly; 310- Rotating seat; 311-Installation channel; 320-Mating end; 330-Fastener; 331-Positioning block; 332-Rotating ring; 333-Sliding ring; 334-Mating rod; 335-Top block; 336-Fixing block; 337-First end; 338-Second end; 339-Positioning hole; 341-First connecting section; 342-Second connecting section; 400-Frame; 410-Head cover; 500-Navigation target. Detailed Implementation

[0044] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0045] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0047] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0049] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0050] See Figure 1 and Figure 6 , Figure 1 This is a schematic diagram of a surgical posture adjustment device according to an embodiment of the present invention. The surgical posture adjustment device provided in this embodiment includes a first joint adjustment component 100, a second joint adjustment component 200, and a third joint adjustment component 300. The second joint adjustment component 200 is connected to the first joint adjustment component 100, and the third joint adjustment component 300 is connected to the second joint adjustment component 200. The third joint adjustment component 300 is provided with an installation channel 311. The first joint adjustment component 100 is used to drive the second joint adjustment component 200 to rotate around a first direction. The second joint adjustment component 200 is used to drive the third joint adjustment component 300 to rotate around a second direction and move along the second direction. The third joint adjustment component 300 can rotate relative to the second joint adjustment component 200 around a third direction, wherein the first direction, the second direction, and the third direction are all perpendicular to each other.

[0051] Specifically, in this application, the first joint adjustment component 100 drives the second joint adjustment component 200 to rotate around the first direction, and the second joint adjustment component 200 drives the third joint adjustment component 300 to rotate around the second direction and move along the second direction. The third joint adjustment component 300 can rotate relative to the second joint adjustment component 200 around the third direction, so that the installation channel 311 can move in space, thereby realizing multi-degree-of-freedom adjustment of the posture and position of the installation channel 311, so that the axis of the installation channel 311 is aligned with the target path, thereby improving the adjustment accuracy and efficiency of the surgical posture adjustment device.

[0052] It should be noted that, through the arrangement of the first joint adjustment component 100, the second joint adjustment component 200, and the third joint adjustment component 300 in this application, the mounting channel 311 can rotate around the mutually perpendicular first, second, and third directions, thereby achieving 360-degree rotation. That is, regardless of the orientation of the target path, the mounting channel 311 in this application can always be parallel to the target path. The mounting channel 311 in this application is used for surgical instruments to pass through, assisting the surgeon in positioning the instruments; therefore, it is only necessary to ensure that the axis of the mounting channel 311 is aligned with the target path. Furthermore, the second joint adjustment component 200 can also drive the third joint adjustment component 300 to move along the second direction, allowing the mounting channel 311 to move in a first plane perpendicular to the first direction. This ensures that any mounting channel 311 parallel to the target path moves closer to the target path in the first plane, aligning the axis of the mounting channel 311 with the target path, thus enabling the mounting channel 311 to move to the target position.

[0053] It should be noted that the instruction manual is attached. Figure 1 Taking this example, we define XX' as the first direction, YY' as the second direction, and ZZ' as the third direction. The following descriptions will all use the first direction, the second direction, and the third direction.

[0054] See Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of the first joint adjustment component in a surgical posture adjustment device provided in an embodiment of the present invention; Figure 3 This is a partially exploded view of the first joint adjustment assembly in a surgical posture adjustment device according to an embodiment of the present invention. In one embodiment, the first joint adjustment assembly 100 includes a mounting base 110, a rotating member 120, and a braking block 130; the rotating member 120 is rotatably connected to the mounting base 110 about a first direction, and a second joint adjustment assembly 200 is mounted on the rotating member 120; the braking block 130 is connected to the rotating member 120 and is movable relative to the mounting base 110 so that the braking block 130 abuts against the mounting base 110 to restrict the rotation of the rotating member 120 relative to the mounting base 110.

[0055] Specifically, the thickness direction of the mounting base 110 coincides with the first direction. The braking block 130 can be brought close to the mounting base 110 so that one end of the braking block 130 abuts against the mounting base 110, thereby increasing the friction between the braking block 130 and the mounting base 110, restricting the rotation between the rotating member 120 and the mounting base 110, so that the second joint adjustment assembly 200 can be stably maintained in the current position relative to the first joint adjustment assembly 100, improving the reliability of the surgical posture adjustment device.

[0056] See Figure 2 , Figure 3 , Figure 4 and Figure 5 , Figure 4 This is a schematic diagram of a support frame in a surgical posture adjustment device provided in an embodiment of the present invention; Figure 5 This is a cross-sectional view of the first joint adjustment component in a surgical posture adjustment device according to an embodiment of the present invention. In one embodiment, the rotating member 120 includes a support frame 121 and a handwheel 122. The support frame 121 is provided with a mounting hole 123. The handwheel 122 is accommodated in the mounting hole 123 and abuts against the wall of the mounting hole 123. A brake block 130 extends into the mounting hole 123 from the side opposite to the mounting base 110 and is threadedly connected to the handwheel 122. The handwheel 122 is configured to drive the brake block 130 to move when rotating relative to the support frame 121, so that the brake block 130 abuts against the mounting base 110.

[0057] Specifically, the handwheel 122 is provided with an adjustment hole 133, and the brake block 130 is threadedly connected to the wall of the adjustment hole 133. Since the handwheel 122 is accommodated in the mounting hole 123 and abuts against the wall of the mounting hole 123, the movement of the handwheel 122 is restricted. (See attached instruction manual) Figure 2 Taking this as an example, during the rotation of handwheel 122 relative to brake block 130 in direction A, since handwheel 122 does not move and brake block 130 is threadedly connected to the wall of adjustment hole 133, the brake block 130 moves relative to handwheel 122 through threaded transmission, thereby driving brake block 130 to move towards mounting base 110. The design of handwheel 122 facilitates manual control of its rotation to move brake block 130, improving operational convenience.

[0058] Furthermore, the extension direction of the brake block 130 is parallel to the first plane, and the handwheel 122 rotates around the extension direction of the brake block 130, thereby maximizing the clamping force of the brake block 130 against the mounting base 110 and improving the stability of the surgical posture adjustment device.

[0059] Furthermore, the handwheel 122 extends at least partially beyond the mounting hole 123, thereby facilitating manual control of the handwheel 122's rotation. Preferably, both ends of the handwheel 122 extend beyond the mounting hole 123 along the first direction.

[0060] In other embodiments, the brake block 130 may be threaded to the rotating member 120, and the brake block 130 may be moved relative to the mounting base 110 by controlling the rotation of the brake block 130.

[0061] See Figure 3 , Figure 4 and Figure 5In one embodiment, the mounting base 110 is sleeved on the support frame 121, and there are two brake blocks 130. The two brake blocks 130 are arranged opposite to each other, and the threads on the outer peripheral surfaces of the two brake blocks 130 are in opposite directions. The two brake blocks 130 are configured to simultaneously abut against the mounting base 110 when the handwheel 122 is rotated, so as to limit the support frame 121 from shifting in the extension direction of the brake blocks 130.

[0062] Specifically, the two brake blocks 130 are symmetrically arranged with respect to the rotation axis of the support frame 121. Since the threads on the outer circumferential surfaces of the two brake blocks 130 rotate in opposite directions, during the rotation of the handwheel 122, the two brake blocks 130 can be synchronously driven to approach the mounting base 110 and simultaneously abut against the mounting base 110. Furthermore, since the two brake blocks 130 are symmetrically arranged, the degree of deformation is the same during the process of each brake block 130 abutting against the corresponding area of ​​the mounting base 110, so that the center position of the support frame 121 does not change. This ensures that the position of the support frame 121 in the first plane perpendicular to the first direction does not shift when it is fixed relative to the mounting base 110, thereby improving the accuracy of the surgical posture adjustment device.

[0063] Furthermore, the mounting base 110 is provided with a rotating hole 111, and the support frame 121 has a platform 126 and a boss 125 protruding from the platform 126 on one side along the first direction. The mounting base 110 is fitted onto the boss 125 and abuts against the platform 126 to support the support frame 121. The outer peripheral surface of the boss 125 abuts against the wall of the rotating hole 111, thereby limiting the offset of the support frame 121 relative to the mounting base 110 in the first plane during rotation, and improving the accuracy of the surgical posture adjustment device.

[0064] Furthermore, a limiting step 131 protrudes from the side of the brake block 130 opposite to the handwheel 122. When the brake block 130 approaches the mounting base 110, the limiting step 131 abuts against the side of the mounting base 110 opposite to the table surface 126, thereby cooperating with the table surface 126 to clamp the mounting base 110, thus restricting the movement of the mounting base 110 and the support frame 121 in the first direction. This further ensures that the position of the support frame 121 does not shift during rotation relative to the mounting base 110, improving the accuracy of the surgical posture adjustment device. It should be noted that when it is necessary to disassemble the support frame 121, the handwheel 122 can be rotated in the opposite direction, causing the brake block 130 to move away from the mounting base 110, thereby releasing the side of the mounting base 110 close to the limiting step 131, allowing the support frame 121 to detach from the mounting base 110.

[0065] See Figure 5 and Figure 6 , Figure 6This is a schematic diagram of the second joint adjustment component in a surgical posture adjustment device according to an embodiment of the present invention. In one embodiment, the support frame 121 is provided with a sliding hole 127 communicating with the mounting hole 123. The wall of the sliding hole 127 is provided with a limiting member 128. The brake block 130 is provided with a mating groove 132 corresponding to the limiting member 128. The limiting member 128 is accommodated in the mating groove 132. The limiting member 128 and the mating groove 132 are movable relative to each other. The limiting member 128 is configured to abut against the groove wall of the mating groove 132 when the brake block 130 abuts against the mounting base 110, so as to restrict the movement of the brake block 130 relative to the mounting base 110.

[0066] Specifically, the size of the mating groove 132 is larger than that of the limiting member 128. During the movement of the brake block 130 relative to the mounting base 110, the limiting member 128 can move relative to the groove wall of the mating groove 132. When the brake block 130 abuts against the mounting base 110, the limiting member 128 abuts against the groove wall of the mating groove 132 on the side away from the mounting base 110, thereby limiting the brake block 130 from continuing to approach the mounting base 110, reducing the deformation of the brake block 130 and the mounting base 110, thereby reducing the offset of the center position of the support frame 121 in the first plane and improving the accuracy of the surgical posture adjustment device.

[0067] Furthermore, the limiting member 128 is threadedly connected to the boss 125, and partially extends into the sliding hole 127 through the hole wall of the sliding hole 127, thereby facilitating the installation and removal of the limiting member 128 and reducing interference to the brake block 130 during installation. Preferably, the limiting member 128 is a stud.

[0068] Furthermore, the wall of the sliding hole 127 includes at least a portion of a flat surface, and the brake block 130 at least partially abuts against the wall of the sliding hole 127, thereby restricting the rotation of the brake block 130. This allows the brake block 130 to move stably under the transmission of the handwheel 122, improving the reliability of the surgical posture adjustment device. Preferably, the sliding hole 127 is a square hole.

[0069] See Figure 1 and Figure 6 In one embodiment, the second joint adjustment assembly 200 includes a sleeve 210, an adjusting arm 230, and a locking member 240. The sleeve 210 is installed on the first joint adjustment assembly 100 and has a mating hole 223. The adjusting arm 230 passes through the mating hole 223 and is slidably connected to the hole wall of the mating hole 223 in a second direction. The adjusting arm 230 is able to rotate relative to the hole wall of the mating hole 223 in the second direction. The locking member 240 passes through the opening 214 of the sleeve 210 and is used to tighten the opening 214 to restrict the rotation and movement of the adjusting arm 230 relative to the sleeve 210.

[0070] Specifically, the extension direction of the sleeve 210 coincides with the second direction, and the adjusting arm 230 is slidably connected to the wall of the mating hole 223 along the second direction. This ensures that the adjusting arm 230 does not deviate on the second plane perpendicular to the second direction during movement and rotation relative to the sleeve 210 along and around the second direction, thus improving the accuracy of the surgical posture adjustment device. The locking member 240 can tighten the tube opening 214, thereby increasing the friction between the adjusting arm 230 and the wall of the mating hole 223, thus restricting the rotation and movement of the adjusting arm 230 relative to the sleeve 210 and improving the reliability of the surgical posture adjustment device.

[0071] Furthermore, the sleeve is also provided with scale lines 224, so that during the operation of the adjusting arm 230 moving relative to the sleeve 210 in the second direction, the moving distance of the adjusting arm 230 can be accurately controlled according to the target distance to be adjusted as needed, thereby improving the convenience and efficiency of adjustment.

[0072] Furthermore, the rotating component 120 also includes a support arm 129, with both ends of the support arm 129 connected to the support frame 121, and the sleeve 210 mounted on the support arm 129. The support arm 129 is arc-shaped to avoid the handwheel 122, thereby reducing interference of the handwheel 122 with the support arm 129 when rotating relative to the support frame 121 and improving the reliability of the surgical posture adjustment device.

[0073] See Figure 6 In one embodiment, the sleeve 210 includes a first pipe segment 211 and a second pipe segment 212 arranged along a second direction. There is a gap 213 between the first pipe segment 211 and the second pipe segment 212. One side of the first pipe segment 211 is connected to the second pipe segment 212 in a radial direction, and the other side is provided with an adjustment channel 215 communicating with the mating hole 223. The locking member 240 passes through the side wall of the adjustment channel 215 and is used to tighten the adjustment channel 215 to restrict the rotation and movement of the adjustment arm 230 relative to the sleeve 210.

[0074] Specifically, the locking member 240 can drive the sidewalls of the adjustment channel 215 to move closer together, thereby tightening the mating hole 223 at the first tube segment 211, increasing the friction between the adjusting arm 230 and the wall of the mating hole 223, thus restricting the rotation and movement of the adjusting arm 230 relative to the sleeve 210. The gap 213 between the first tube segment 211 and the second tube segment 212 reduces the impact on the second tube segment 212 during the tightening process, ensuring that the position of the mounting hole 123 of the second tube segment 212 remains unchanged. This, in turn, ensures that the position of the adjusting arm 230 relative to the sleeve 210 does not shift on the second plane during the locking process, improving the accuracy of the surgical posture adjustment device.

[0075] See Figure 4 and Figure 6 In one embodiment, the first pipe segment 211 includes a first segment 216, a second segment 217, and a third segment 218. The first segment 216 forms the wall of the mating hole 223 on the first pipe segment 211. The two ends of the first segment 216 have gaps 213 to form notches 219. The second segment 217 and the third segment 218 are respectively connected to the two ends of the first segment 216 and are arranged opposite to each other to form an adjustment channel 215. The adjustment channel 215 communicates with the mating hole 223 through the notches 219. A locking member 240 passes through the second segment 217 and the third segment 218. The locking member 240 is used to push the third segment 218 and the second segment 217 closer together to tighten the adjustment channel 215, thereby tightening the diameter of the mating hole 223 on the first pipe segment 211, increasing the friction between the wall of the mating hole 223 and the adjusting arm 230, and restricting the rotation and movement of the adjusting arm 230 relative to the sleeve 210.

[0076] Furthermore, the second segment 217 is provided with a first connecting hole 221 through which the locking member 240 passes, and the third segment 218 is provided with a second connecting hole 222 through which the locking member 240 passes. One of the first connecting hole 221 and the second connecting hole 222 is provided with a threaded hole, and the other is provided with a smooth hole. By rotating the locking member 240 relative to the first pipe segment 211, one of the second segment 217 and the third segment 218 is moved closer to the other, thereby tightening the adjusting channel 215. Preferably, the locking member 240 is a stud.

[0077] In other embodiments, both the second segment 217 and the third segment 218 are provided with threaded holes, and the threads are rotated in opposite directions.

[0078] In other embodiments, both the second segment 217 and the third segment 218 are provided with light holes, and the locking member 240 includes a threaded post and a nut.

[0079] See Figure 1 , Figure 6 and Figure 7 , Figure 7This is a schematic diagram of the sealing element in the second joint adjustment assembly of a surgical posture adjustment device provided in an embodiment of the present invention. In one embodiment, the second joint adjustment assembly 200 further includes a sealing member 250, which includes a sliding block 251, an elastic member 253, and a button 252. The sliding block 251 is provided with a mounting groove 254 and a limiting hole 255 for the adjustment arm 230 to pass through. The limiting hole 255 communicates with the mounting groove 254, and the sliding block 251 is used to abut against one end of the sleeve 210 away from the third joint adjustment assembly 300. The elastic member 253 is accommodated in the mounting groove 254, and one end of the elastic member 253 is connected to the groove wall of the mounting groove 254, while the other end abuts against the adjustment arm 230 passing through the limiting hole 255. The button 252 is at least partially confined within the mounting groove 254 and is slidably connected to the groove wall of the mounting groove 254. The button 252 is configured to be close to the elastic member 253 to compress the elastic member 253 and release the adjustment arm 230.

[0080] Specifically, the elastic element 253 is in a compressed state, thereby pressing against the adjusting arm 230 to limit the movement of the adjusting arm 230 relative to the sliding block 251. The sliding block 251 abuts against the side of the sleeve 210 opposite to the third joint adjusting assembly 300, thus marking the position of the adjusting arm 230. That is, when adjusting the angle of the adjusting arm 230 in the second direction, as long as the sliding block 251 abuts against the sleeve 210, the position of the adjusting arm 230 in the second direction remains unchanged. This ensures that the position of the adjusting arm 230 in the second direction does not shift during angle adjustment, improving the accuracy of the surgical posture adjustment device.

[0081] When the position of the adjusting arm 230 in the second direction needs to be adjusted, the button 252 is pressed. The button 252 moves closer to the elastic element 253, thereby compressing the elastic element 253 and releasing the adjusting arm 230. This allows the adjusting arm 230 to move closer to or further away from the sleeve 210. After adjustment, the sliding block 251 moves relative to the adjusting arm 230 to abut against the sleeve 210. Preferably, the elastic element 253 is a spring.

[0082] Furthermore, the button 252 is connected to the elastic member 253, so that when the button 252 is pressed, the elastic member 253 can be pushed, and at the same time, the button 252 can be prevented from coming out of the mounting slot 254.

[0083] Furthermore, a limiting block 233 is provided at the end of the adjusting arm 230 opposite to the sliding block 251 and the third joint adjusting assembly 300. The limiting block 233 protrudes from the adjusting arm 230 on the second plane to prevent the adjusting arm 230 from disengaging from the sliding block 251, thereby improving the reliability of the surgical posture adjustment device. Preferably, the limiting block 233 is a nut.

[0084] The adjusting arm 230 includes a first connecting rod 231 and a second connecting rod 232 connected by threads. The second connecting rod 232 passes through a limiting hole 255, and one end of the first connecting rod 231 extending out of the sleeve 210 is connected to the third joint adjusting assembly 300. The threaded connection between the first connecting rod 231 and the second connecting rod 232 facilitates the installation and disassembly of the adjusting arm 230, improving the convenience of the surgical posture adjustment device.

[0085] See Figure 8 , Figure 9 and Figure 10 , Figure 8 This is a partial schematic diagram of the second joint adjustment component in a surgical posture adjustment device provided in an embodiment of the present invention; Figure 9 This is a schematic diagram showing the cooperation between the third joint adjustment component and the second joint adjustment component in a surgical posture adjustment device provided in an embodiment of the present invention; Figure 10 This is a cross-sectional view of the third joint adjustment component and the second joint adjustment component in a surgical posture adjustment device according to an embodiment of the present invention. In one embodiment, the second joint adjustment component 200 is provided with a mounting hole 263, and the third joint adjustment component 300 includes a rotating seat 310, a mating end 320, and a fastener 330. The mating end 320 is connected to the rotating seat 310 and passes through the mounting hole 263. The mating end 320 is rotatably connected to the wall of the mounting hole 263 about a third direction. An installation channel 311 is provided in the rotating seat 310. The fastener 330 is connected to the end of the mating end 320 that extends out of the mounting hole 263 and is used to abut against the second joint adjustment component 200 to restrict the rotation of the mating end 320 relative to the second joint adjustment component 200.

[0086] Specifically, the axial direction of the mounting hole 263 coincides with the third direction. The second joint adjustment assembly 200 also includes a mating seat 260, which includes a first mating plate 261 and a second mating plate 262 connected to each other. The second mating plate 262 is connected to the end of the adjusting arm 230 away from the sleeve 210. The mounting hole 263 is disposed in the first mating plate 261, and the rotating seat 310 abuts against the first mating plate 261. The mating end 320 is rotatably connected to the wall of the mounting hole 263, thereby restricting the movement of the mating end 320 in the third plane perpendicular to the third direction during the rotation of the mating end 320 relative to the second joint adjustment assembly 200 around the third direction, thus improving the accuracy of the surgical posture adjustment device. The fastener 330 can abut against the second joint adjustment component 200, so that the rotating seat 310 abuts against the first mating plate 261, thereby increasing the friction between the rotating seat 310 and the first mating plate 261, thereby limiting the rotation of the mating end 320 relative to the mounting hole 263 and improving the reliability of the surgical posture adjustment device.

[0087] Furthermore, the midpoint of the axis of the mounting channel 311 falls on the rotation axis of the mating end 320, so that during the rotation of the mating end 320 relative to the first mating plate 261 around a third direction, the midpoint of the axis of the mounting channel 311 can be driven to rotate around a third direction, reducing offsets in other directions and improving the adjustment efficiency of the surgical posture adjustment device.

[0088] Furthermore, the midpoint of the axis of the mounting channel 311 falls on the axis of the adjusting arm 230, so that when the adjusting arm 230 rotates relative to the sleeve 210 in the second direction, it can drive the midpoint of the axis of the mounting channel 311 to rotate around the second direction, reducing the offset in other directions and improving the adjustment efficiency of the surgical posture adjustment device.

[0089] See Figure 7 , Figure 8 and Figure 9 In one embodiment, the second joint adjustment assembly 200 is provided with a protrusion 264, and a mounting hole 263 is partially disposed within the protrusion 264. The fastener 330 includes a positioning block 331 and a fixing block 336. The positioning block 331 is sleeved on the protrusion 264 and threadedly connected to the protrusion 264. The fixing block 336 is connected to the mating end 320 and partially protrudes outside the protrusion 264. The positioning block 331 is configured to move relative to the mating end 320 when rotating relative to the mating end 320, so as to press against the fixing block 336, thereby restricting the rotation of the mating end 320 relative to the second joint adjustment assembly 200.

[0090] Specifically, the fixing block 336 is connected to the mating end 320 and partially protrudes beyond the protrusion 264, thereby restricting the mating end 320 from disengaging from the mounting hole 263. This allows the mating end 320 to rotate relative to the mounting hole 263 about a third direction, adjusting the orientation of the mounting channel 311 in the third direction. When it is necessary to lock the third joint adjustment assembly 300, the positioning block 331 rotates relative to the protrusion 264 to move, thereby pushing the fixing block 336 away from the rotating seat 310. When the positioning block 331 abuts against the fixing block 336, the rotating seat 310 abuts against the first mating plate 261, thereby restricting the rotation of the rotating seat 310 about a third direction. The present application uses a positioning block 331 to abut against a fixing block 336 to restrict the rotation of the rotating seat 310. Compared with the method of restricting the rotation of the rotating seat 310 by tightening the mating end 320 with a nut or the like, this can reduce the torque transmission of the fixing block 336 to the mating end 320. Therefore, when locking the rotating seat 310, the angle of rotation of the rotating seat 310 around a third direction can be reduced, thereby improving the accuracy of the surgical posture adjustment device.

[0091] See Figure 7 , Figure 8 and Figure 9In one embodiment, the positioning block 331 includes a rotating ring 332 and a sliding ring 333. The rotating ring 332 is sleeved on the mating end 320 and threadedly connected to the mating end 320. The sliding ring 333 is sleeved on the mating end 320. The rotating ring 332 is configured to move relative to the mating end 320 when rotating relative to the mating end 320, so as to push the sliding ring 333 to move, so that the sliding ring 333 abuts against the fixing block 336.

[0092] Specifically, the sliding ring 333 is disposed between the rotating ring 332 and the fixed block 336. By separating the rotating ring 332 and the sliding ring 333, the rotating ring 332 transmits thrust to the fixed block 336 through the sliding ring 333 during the rotation of the rotating ring 332 relative to the protrusion 264. This reduces the torque transmitted to the fixed block 336, thereby further reducing the torque transmitted to the mating end 320 and further reducing the angle of rotation of the rotating seat 310 around a third direction, thus improving the accuracy of the surgical posture adjustment device.

[0093] Furthermore, the protrusion 264 includes a first mating section 265 and a second mating section 266. The first mating end 320 is threaded, and the outer peripheral surface of the second mating end 320 is at least partially flat. The sliding ring 333 is sleeved on the second mating end 320 and abuts against the flat surface of the second mating end 320. Thus, during the process of the rotating ring 332 rotating to push the sliding ring 333 to move, the rotation of the sliding ring 333 is restricted, thereby preventing the sliding ring 333 from transmitting torque to the fixed block 336, further reducing the angle of rotation of the rotating seat 310 about a third direction, and improving the accuracy of the surgical posture adjustment device.

[0094] See Figure 7 , Figure 8 and Figure 9 In one embodiment, the fixing block 336 includes a mating rod 334 and a top block 335. The mating rod 334 is threaded to the mating end 320, and the top block 335 is rotatably connected to the mating rod 334. One end of the top block 335 is used to abut against the mating rod 334, and the other end of the top block 335 is used to abut against the positioning block 331.

[0095] Specifically, the top block 335 is rotatably connected to the mating rod 334. During the process of the sliding ring 333 abutting against the top block 335, the rotation of the top block 335 does not interfere with the mating rod 334, thereby preventing the mating rod 334 from transmitting torque to the mating end 320 and improving the accuracy of the surgical posture adjustment device.

[0096] Furthermore, the mating end 320 is provided with a positioning hole 339, which includes a first connecting hole section 341 and a second connecting hole section 342. The radial dimension of the second connecting hole section 342 is larger than that of the first connecting hole section 341, and it is located on the side away from the rotating seat 310. The second connecting hole section 342 is an irregularly shaped hole. The mating rod 334 is threaded to the hole wall of the first connecting hole section 341, and the top block 335 partially extends into the second connecting hole section 342 and slides along a third direction with the hole wall of the second connecting hole section 342. Because the second connecting hole section 342 is an irregularly shaped hole, the rotation of the top block 335 is restricted during the process of the sliding ring 333 pushing the top block 335 to move along a third direction. This restricts the torque transmitted from the top block 335 to the mating rod 334, thereby improving the accuracy of the surgical posture adjustment device. Preferably, the second connecting hole section 342 is a flat hole.

[0097] Additionally, the top block 335 includes a first end 337 and a second end 338 connected to each other. The second end 338 extends into the positioning hole 339, and the first end 337 abuts against the inclined surface of the mating rod 334 and is used to abut against the sliding ring 333. When the sliding ring 333 abuts against the first end 337 to restrict the movement of the mating end 320 relative to the first mating plate 261, both the mating rod 334 and the hole wall of the positioning hole 339 can provide support for the top block 335, thereby avoiding stress concentration, improving the service life of the top block 335, and improving the reliability of the surgical posture adjustment device.

[0098] See Figure 1 This invention also provides a posture adjustment system, including a navigation device and the above-mentioned surgical posture adjustment device. The navigation target 500 of the navigation device is used to install on the installation channel 311. The navigation device is used to position the navigation target 500 to determine the posture of the installation channel 311, thereby determining whether the axis of the installation channel 311 is aligned with the target path. This facilitates the operation of the first joint adjustment component 100, the second joint adjustment component 200 and the third joint adjustment component 300, and improves the adjustment accuracy of the posture adjustment system.

[0099] Furthermore, the navigation device also includes a position detector and a processor. The position detector is used to detect the pose information of the navigation target 500 and transmit the obtained position information to the processor. The processor calculates the offset between the mounting channel 311 and the target path based on the target path information, and provides the angle that the first joint adjustment component 100, the second joint adjustment component 200 and the third joint adjustment component 300 need to be adjusted, as well as the length that the second joint adjustment component 200 needs to be adjusted. This facilitates manual control of the first joint adjustment component 100, the second joint adjustment component 200 and the third joint adjustment component 300, so that the axis of the mounting channel 311 is aligned with the target path, thereby improving the efficiency of aligning the mounting channel 311 with the target path.

[0100] See Figure 1 and Figure 6 This invention also provides a posture adjustment device, including surgical instruments and the aforementioned surgical posture adjustment device. The surgical instruments are used to pass through an installation path that is moved to be aligned with a target path. That is, after the installation path is aligned with the target path, the navigation target is removed, and then the surgical instruments are installed on the installation path to assist the doctor in positioning the surgical instruments and improve the accuracy and efficiency of surgical instrument positioning.

[0101] Furthermore, the posture adjustment device also includes a frame 400 and a headgear 410, with the frame 400 connected to the headgear 410 and the mounting base 110 connected to the frame 400, so as to apply the surgical posture adjustment device in neurosurgery. In other embodiments, it can also be used in other surgical procedures.

[0102] In this application, the first joint adjustment component 100 is used to drive the second joint adjustment component 200 to rotate around a first direction, the second joint adjustment component 200 is used to drive the third joint adjustment component 300 to rotate around a second direction and move along the second direction, and the third joint adjustment component 300 can rotate relative to the second joint adjustment component 200 around a third direction, so that the installation channel 311 can move in space. The navigation system can calculate the offset between the navigation target 500 and the target path, thereby obtaining the angles that the first joint adjustment component 100, the second joint adjustment component 200 and the third joint adjustment component 300 need to be adjusted, so as to facilitate the operation of the rotation angles of the first joint adjustment component 100, the second joint adjustment component 200 and the third joint adjustment component 300, so that the axis of the installation channel 311 is aligned with the target path, thereby improving the accuracy and efficiency of the posture adjustment device.

[0103] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0104] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A surgical posture adjustment device, characterized in that, The surgical posture adjustment device includes a first joint adjustment component (100), a second joint adjustment component (200), and a third joint adjustment component (300); The second joint adjustment assembly (200) is connected to the first joint adjustment assembly (100), and the third joint adjustment assembly (300) is connected to the second joint adjustment assembly (200). The third joint adjustment assembly (300) is provided with an installation channel (311). The first joint adjustment component (100) is used to drive the second joint adjustment component (200) to rotate around a first direction, and the second joint adjustment component (200) is used to drive the third joint adjustment component (300) to rotate around a second direction and move along the second direction. The third joint adjustment component (300) is capable of rotating relative to the second joint adjustment component (200) around a third direction, wherein the first direction, the second direction and the third direction are all perpendicular to each other. The first joint adjustment assembly (100) includes: Mounting base (110); A rotating component (120) is rotatably connected to the mounting base (110) about the first direction, and the second joint adjustment assembly (200) is mounted on the rotating component (120); A brake block (130) is connected to the rotating member (120). The brake block (130) is movable relative to the mounting base (110) so that the brake block (130) abuts against the mounting base (110) to restrict the rotation of the rotating member (120) relative to the mounting base (110). The rotating component (120) includes a support frame (121) and a handwheel (122). The support frame (121) has a mounting hole (123). The handwheel (122) is accommodated in the mounting hole (123) and abuts against the wall of the mounting hole (123). The brake block (130) extends into the mounting hole (123) from the side opposite to the mounting base (110) and is threadedly connected to the handwheel (122). The handwheel (122) is configured to drive the brake block (130) to move when rotating relative to the support frame (121), so that the brake block (130) abuts against the mounting base (110). The handwheel (122) extends at least partially beyond the mounting hole (123).

2. The surgical posture adjustment device according to claim 1, characterized in that, The mounting base (110) is sleeved on the support frame (121). There are two brake blocks (130), which are arranged opposite to each other. The threads on the outer circumferential surfaces of the two brake blocks (130) are turned in opposite directions. The two brake blocks (130) are configured to simultaneously abut against the mounting base (110) when the handwheel (122) is rotated, so as to limit the support frame (121) from deviating in the extension direction of the brake blocks (130).

3. The surgical posture adjustment device according to claim 1, characterized in that, The support frame (121) is provided with a sliding hole (127) communicating with the mounting hole (123). The wall of the sliding hole (127) is provided with a limiting member (128). The brake block (130) is provided with a mating groove (132) corresponding to the limiting member (128). The limiting member (128) is accommodated in the mating groove (132). The limiting member (128) and the mating groove (132) are movable relative to each other. The limiting member (128) is configured to abut against the groove wall of the mating groove (132) when the brake block (130) abuts against the mounting base (110) to restrict the movement of the brake block (130) relative to the mounting base (110).

4. The surgical posture adjustment device according to any one of claims 1-3, characterized in that, The second joint adjustment assembly (200) includes: A sleeve (210) is installed on the first joint adjustment assembly (100), and the sleeve (210) is provided with a mating hole (223); An adjusting arm (230) is inserted into the mating hole (223). The adjusting arm (230) is slidably connected to the wall of the mating hole (223) along the second direction, and the adjusting arm (230) can rotate relative to the wall of the mating hole (223) around the second direction. A locking member (240) is inserted at the opening (214) of the sleeve (210). The locking member (240) is used to tighten the opening (214) to restrict the rotation and movement of the adjusting arm (230) relative to the sleeve (210).

5. The surgical posture adjustment device according to claim 4, characterized in that, The sleeve (210) includes a first pipe segment (211) and a second pipe segment (212) arranged along the second direction. There is a gap (213) between the first pipe segment (211) and the second pipe segment (212). The first pipe segment (211) is connected to the second pipe segment (212) on one side in the radial direction, and an adjustment channel (215) communicating with the mating hole (223) is provided on the other side. The locking member (240) passes through the side wall of the adjustment channel (215) and is used to tighten the adjustment channel (215) to restrict the rotation and movement of the adjustment arm (230) relative to the sleeve (210).

6. The surgical posture adjustment device according to claim 4, characterized in that, The second joint adjustment assembly (200) further includes a sealing member (250), the sealing member (250) comprising: The sliding block (251) is provided with a mounting groove (254) and a limiting hole (255) for the adjusting arm (230) to pass through. The limiting hole (255) communicates with the mounting groove (254). The sliding block (251) is used to abut against the end of the sleeve (210) away from the third joint adjusting assembly (300). An elastic element (253) is accommodated in the mounting groove (254), and one end of the elastic element (253) is connected to the groove wall of the mounting groove (254), and the other end abuts against the adjusting arm (230) that passes through the limiting hole (255); A button (252) is at least partially located within the mounting groove (254) and slidably connected to the groove wall of the mounting groove (254). The button (252) is configured to be close to the elastic member (253) to compress the elastic member (253) to release the adjusting arm (230).

7. The surgical posture adjustment device according to any one of claims 1-3, characterized in that, The second joint adjustment assembly (200) is provided with a mounting hole (263). The third joint adjustment assembly (300) includes a rotating seat (310), a mating end (320), and a fastener (330). The mating end (320) is connected to the rotating seat (310) and passes through the mounting hole (263). The mating end (320) is rotatably connected to the wall of the mounting hole (263) around the third direction. The mounting channel (311) is provided on the rotating seat (310). The fastener (330) is connected to one end of the mating end (320) that extends out of the mounting hole (263) and is used to abut against the second joint adjustment assembly (200) to restrict the rotation of the mating end (320) relative to the second joint adjustment assembly (200).

8. The surgical posture adjustment device according to claim 7, characterized in that, The second joint adjustment assembly (200) is provided with a protrusion (264), and the mounting hole (263) is partially disposed in the protrusion (264). The fastener (330) includes a positioning block (331) and a fixing block (336). The positioning block (331) is sleeved on the protrusion (264) and threadedly connected to the protrusion (264). The fixing block (336) is connected to the mating end (320) and partially protrudes outside the protrusion (264). The positioning block (331) is configured to move relative to the mating end (320) when rotating relative to the mating end (320) to abut against the fixing block (336) to restrict the rotation of the mating end (320) relative to the second joint adjustment assembly (200).

9. The surgical posture adjustment device according to claim 8, characterized in that, The positioning block (331) includes a rotating ring (332) and a sliding ring (333). The rotating ring (332) is sleeved on the mating end (320) and threadedly connected to the mating end (320). The sliding ring (333) is sleeved on the mating end (320). The rotating ring (332) is configured to move relative to the mating end (320) when rotating relative to the mating end (320) to push the sliding ring (333) to move so that the sliding ring (333) abuts against the fixing block (336).

10. The surgical posture adjustment device according to claim 8, characterized in that, The fixing block (336) includes a mating rod (334) and a top block (335). The mating rod (334) is threaded to the mating end (320), and the top block (335) is rotatably connected to the mating rod (334). One end of the top block (335) is used to abut against the mating rod (334), and the other end of the top block (335) is used to abut against the positioning block (331).

11. A posture adjustment system, characterized in that, The device includes a navigation device and a surgical pose adjustment device as described in any one of claims 1-10, wherein the navigation target (500) of the navigation device is used to be installed in the mounting channel (311), and the navigation device is used to position the navigation target (500) to determine the pose of the mounting channel (311).

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