A spinous process clip tracker with displacement monitoring

Abstract

The present invention discloses a spinous process clamp tracker with displacement monitoring, which relates to the technical field of medical devices. The solution includes: a bone clamp, one end of which is used to clamp the spinous process; a first bracket, which is detachably connected to the other end of the bone clamp, and a tracer is arranged on the first bracket, and the tracer is used to locate the spinous process; a second bracket, which transversely penetrates the bone clamp, and the second bracket is rotatably connected to the bone clamp so that the bone clamp rotates circumferentially along the second bracket; a displacement monitoring component is arranged on the second bracket, and the displacement monitoring component is used for a positioning needle to pass through, and the positioning needle is used to pierce into the spinous process. When the bone clamp and the positioning needle are fixedly connected to the spinous process, the displacement monitoring component is used to detect whether the bone clamp has a displacement relative to the spinous process. With such a setting, the present invention can magnify and indicate the displacement of the bone clamp relative to the spinous process through the displacement monitoring component, which is convenient for doctors to discover and adjust in time, and avoid surgical accidents caused by inaccurate positioning of the tracer.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a spinous process clip tracker with displacement monitoring. Background Art

[0002] As a tracer fixator, the spinous process clip tracker is widely used in the spinal surgery of the surgical navigation robot system. The relative position stability between the tracer and the patient is the basis for the accurate positioning of the robotic arm during the operation. The spinous process clip tracker is an important component to ensure the firm connection between the tracer and the patient and the relative position stability. Its usage process is as follows: Select a segment close to the surgical segment and not affecting the surgical operation as the tracer fixation position. After making an incision in the skin with a scalpel, free the muscle tissue around the spinous process, and clamp the spinous process clip tracker with the tracer on the target spinous process and lock it.

[0003] Under normal circumstances, the spinous process clip tracker can stably hold and provide a stable position indication for the surgical navigation robot system. However, during the operation, if a surgical instrument or the doctor touches the spinous process clip tracker or the beacon on it, the spinous process clip tracker may undergo a certain displacement. If the displacement is large, the doctor can detect it, but a relatively small displacement may not necessarily be detected by the doctor, and the small displacement will bring the problem of navigation accuracy deviation, thus bringing risks to the operation. Summary of the Invention

[0004] In view of the above defects or deficiencies in the prior art, the present invention provides a spinous process clip tracker with displacement monitoring.

[0005] To achieve the above object, a spinous process clip tracker with displacement monitoring according to the present invention includes:

[0006] A bone clip, one end of which is used to clamp the spinous process;

[0007] A first bracket, which is detachably connected to the other end of the bone clip, and a tracer is arranged on the first bracket, and the tracer is used to locate the spinous process;

[0008] A second bracket, which transversely penetrates the bone clip, and the second bracket is rotatably connected to the bone clip so that the bone clip rotates circumferentially along the second bracket;

[0009] A displacement monitoring component is arranged on the second bracket, and the displacement monitoring component is used for the positioning needle to pass through. The positioning needle is used to pierce into the spinous process. When the bone clip and the positioning needle are fixedly connected to the spinous process, the displacement monitoring component is used to detect whether the bone clip has a displacement relative to the spinous process.

[0010] Preferably, the displacement monitoring assembly includes a first slider and a first chute. The first chute is arranged on the second bracket, the first slider is slidably connected to the first chute, and the positioning pin penetrates through the first slider;

[0011] The displacement monitoring assembly is used to detect whether the bone clamp and the spinous process are displaced by whether the first slider moves relative to the first chute.

[0012] Preferably, the first slider includes a first side wall and a second side wall. The first side wall and the second side wall are arranged adjacent to each other. The length of the first side wall is greater than the length of the second side wall. The first chute includes a third side wall and a fourth side wall. The third side wall and the fourth side wall are arranged adjacent to each other. The length of the third side wall is greater than the length of the fourth side wall;

[0013] A first convex block is arranged on the first side wall, and a first limiting groove is arranged on the third side wall. The shape and size of the first limiting groove are equal to those of the first convex block, and the depth of the first limiting groove is less than the height of the third side wall;

[0014] When the first convex block is located in the first limiting groove, the displacement monitoring assembly is used to correct the clamping position of the bone clamp for clamping the spinous process.

[0015] Preferably, a first scale line is arranged on the second side wall, and a second scale line is arranged on the surface of the second bracket close to the third side wall;

[0016] When the first slider is slidably connected to the first chute, the first side wall and the third side wall are arranged perpendicular to each other, and the first scale line and the second scale line are arranged corresponding to each other. When the bone clamp moves relative to the spinous process, the corresponding positions of the first scale line and the second scale line change.

[0017] Preferably, the displacement monitoring assembly further includes a locking structure. The locking structure includes a first rotating column, a rotating handle and a first elastic member. The positioning pin penetrates through the first rotating column and the rotating handle;

[0018] The first rotating column is fixedly connected to the first slider. The first rotating column penetrates through the first chute. The rotating handle is sleeved on the first rotating column, and the rotating handle is threadedly connected to the first rotating column;

[0019] The first elastic member is arranged between the first slider and the rotating handle. The first rotating column passes through the first elastic member. When the first elastic member is in a compressed state, the first elastic member is used to make the first slider abut against the second bracket.

[0020] Preferably, the second bracket includes a detection part and a mounting part, and the mounting part is located between the two detection parts;

[0021] The mounting part is used to penetrate through the bone clip, and the mounting part is rotatably connected to the bone clip. A first limiting member is arranged on the mounting part, and the first limiting member is used to fixedly connect the second bracket and the bone clip;

[0022] The detection part is used for installing the displacement monitoring component. The detection part is angularly connected to the mounting part, and the detection part is inclined in a direction away from the first bracket.

[0023] Preferably, a spherical groove is arranged at one end of the bone clip, and a ball head part is arranged at the bottom of the first bracket. The spherical groove is used for installing the ball head part, and the ball head part is rotatably connected to the spherical groove;

[0024] A second rotating column is arranged on the bone clip. The second rotating column penetrates through the spherical groove. A second limiting member is arranged on the side wall of the second rotating column. The second limiting member is threadedly connected to the second rotating column. The second limiting member abuts against the spherical groove. The second limiting member is used to control the vertical movement of the spherical groove so that the second rotating column extends into the spherical groove and abuts against the ball head part.

[0025] Preferably, the bone clip includes a first clip arm and a second clip arm, and the first clip arm and the second clip arm are rotatably connected;

[0026] A second elastic member is arranged at the rotational connection of the first clip arm and the second clip arm. The second elastic member is elastically connected to the first clip arm and the second clip arm respectively. The second elastic member is used to reset the first clip arm and the second clip arm;

[0027] When the bone clip is in the initial state, the ends of the first clip arm and the second clip arm close to the spinous process are close to each other.

[0028] Preferably, the inclination angle range of the detection part is 20 - 40°;

[0029] Preferably, an anti-slip structure is arranged on the surfaces of the first clip arm and the second clip arm facing each other. The anti-slip structure protrudes or recesses from the set surface;

[0030] The anti-slip structure is arranged at the ends of the first clip arm and the second clip arm close to the spinous process.

[0031] Based on this, the beneficial effects of the present invention are as follows:

[0032] 1. Through the solution of the present invention, a displacement monitoring component is provided on the bone clamp. The displacement monitoring component is used for the positioning needle to pass through. When in use, the bone clamp clamps the spinous process, and at the same time the positioning needle pierces into the spinous process to achieve fixation. When a tiny displacement that cannot be detected by the naked eye occurs between the bone clamp and the spinous process, the displacement monitoring component can display this tiny displacement to remind the doctor, ensuring accurate positioning and guaranteeing the safety of the operation;

[0033] 2. Through the solution of the present invention, the displacement monitoring component includes a first sliding groove and a first sliding block. The first sliding groove is arranged on the second bracket, and the first sliding block is slidably connected to the first sliding groove. The positioning needle penetrates through the first sliding block and the first sliding groove. At the same time, a first scale line is arranged on the first sliding block, and a second scale line is circumferentially arranged on the second sliding groove. When a displacement occurs between the bone clamp and the spinous process, the first sliding block slides relative to the first sliding groove, causing the corresponding positions of the first scale line and the second scale line to change. The doctor can calculate the deviation degree of the tracer on the first bracket through the deviation value between the two scale lines. If this deviation degree does not affect the operation, no adjustment is required. If it affects, the bone clamp needs to be realigned;

[0034] 3. Through the solution of the present invention, a first convex block is arranged on the first sliding block, and a first limiting groove is arranged in the second sliding groove. After a displacement occurs between the bone clamp and the spinous process, the bone clamp and the spinous process are loosened, and the bone clamp is quickly aligned by placing the first protrusion in the first limiting groove, avoiding recalibration during the operation and saving operation time;

[0035] 4. Through the solution of the present invention, the first bracket is connected to the bone clamp through a ball head part and a spherical groove, enabling the first bracket to have multiple placement angles, and being able to make the central plane of the camera the same as the rotation plane, ensuring that the camera is in the best viewing field. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes and advantages of the present application will become more obvious:

[0037] Figure 1 Schematic structural diagram of a spinous process clamp tracker showing an embodiment of the present invention;

[0038] Figure 2 Schematic diagram of the first use state of the displacement monitoring component and the second bracket showing an embodiment of the present invention;

[0039] Figure 3 Schematic diagram of the second use state of the displacement monitoring component and the second bracket showing an embodiment of the present invention;

[0040] Figure 4 Schematic structural diagram of a bone clamp showing an embodiment of the present invention;

[0041] Figure 5 Schematic structural diagram of the first bracket showing an embodiment of the present invention;

[0042] Explanation of reference numerals: 10 - bone clip, 101 - spherical groove, 102 - second rotating column, 103 - second limiting member, 104 - first clamping arm, 105 - second clamping arm, 106 - second elastic member, 107 - anti-slip structure, 20 - first bracket, 201 - tracer, 202 - ball head member, 30 - second bracket, 301 - detection part, 302 - mounting part, 303 - first limiting member, 40 - displacement monitoring assembly, 401 - first slider, 4011 - first side wall, 4012 - second side wall, 4013 - first scale line, 4014 - first convex block, 402 - first sliding groove, 4021 - third side wall, 4022 - fourth side wall, 4023 - second scale line, 4024 - first limiting groove, 403 - locking structure, 4031 - first rotating column, 4032 - rotating handle, 4033 - first elastic member, 50 - positioning needle. Detailed implementation manners

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0044] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The singular forms "a", "the", and "said" used in the embodiments of the present application are also intended to include the plural forms unless the context clearly indicates otherwise.

[0045] It should be understood that although the terms first, second, third, etc. may be used in the embodiments of the present application to describe related structures, these related structures should not be limited to these terms. These terms are only used to distinguish the related structures from each other.

[0046] Depending on the context, the word "if" as used herein can be interpreted as "when" or "while". Similarly, depending on the context, the phrase "if determined" can be interpreted as "when determined" or "when detecting (the stated condition or event)".

[0047] It should be noted that the orientation terms such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described from the angles shown in the drawings and should not be construed as limitations on the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that one element is formed "on" or "under" another element, it can not only be directly formed "on" or "under" another element, but also be indirectly formed "on" or "under" another element through an intermediate element.

[0048] Figure 1 A schematic structural diagram of a spinous process clip tracker schematically showing an embodiment of the present invention is as Figure 1 shown. A spinous process clip tracker with displacement monitoring according to the present invention includes:

[0049] A bone clip 10, one end of which is used to clamp the spinous process;

[0050] A first bracket 20, which is detachably connected to the other end of the bone clip 10. A tracer 201 is provided on the first bracket 20, and the tracer 201 is used to locate the spinous process;

[0051] A second bracket 30, which laterally penetrates the bone clip 10. The second bracket 30 is rotationally connected to the bone clip 10 so that the bone clip 10 rotates circumferentially along the second bracket 30;

[0052] A displacement monitoring component 40 is provided on the second bracket 30. The displacement monitoring component 40 is for a positioning needle 50 to pass through. The positioning needle 50 is used to pierce into the spinous process. When the bone clip 10 and the positioning needle 50 are fixedly connected to the spinous process, the displacement monitoring component 40 is used to detect whether the bone clip 10 has a displacement relative to the spinous process.

[0053] In the traditional technology, after the spinous process clip tracker clamps the spinous process, due to the patient's own factors, the doctor's accidental touch or slight impact of the device, the position of the spinous process clip tracker changes. A relatively large displacement deviation is easy to be found, and the doctor can adjust it in time. However, a relatively small deviation is very difficult to be found, resulting in inaccurate positioning of the tracer 201 and bringing risks to the operation.

[0054] In the present invention, by installing the second bracket 30 on the bone clip 10 and providing the displacement monitoring component 40 thereon, it can detect whether the bone clip 10 and the spinous process are offset. Since the positioning needle 50 penetrates through the displacement monitoring component 40 and the positioning needle 50 also pierces into the spinous process, when the bone clip 10 and the spinous process are offset, the first bracket 20 and the second bracket 30 connected to the bone clip 10 will be offset synchronously, while the displacement monitoring component 40 remains unchanged in position due to the fixing effect of the positioning needle 50, resulting in a change in the relative position between the displacement monitoring component 40 and the second bracket 30, which can thus be detected by the doctor and repositioned and adjusted to ensure the safety of the operation.

[0055] Furthermore,Figure 2 Figure showing the first usage state of the displacement monitoring component and the second bracket according to an embodiment of the present invention Figure 3 Figure showing the second usage state of the displacement monitoring component and the second bracket according to an embodiment of the present invention, as Figure 2 、 3 shown in

[0056] The displacement monitoring component 40 includes a first slider 401 and a first chute 402. The first chute 402 is provided on the second bracket 30. The first slider 401 is slidably connected to the first chute 402. The positioning pin 50 penetrates through the first slider 401;

[0057] The displacement monitoring component 40 is used to detect whether the bone clamp 10 and the spinous process are displaced by whether the first slider 401 moves relative to the first chute 402.

[0058] Specifically, the first slider 401 includes a first side wall 4011 and a second side wall 4012. The first side wall 4011 and the second side wall 4012 are adjacent to each other. The length of the first side wall 4011 is greater than the length of the second side wall 4012. The first chute 402 includes a third side wall 4021 and a fourth side wall 4022. The third side wall 4021 and the fourth side wall 4022 are adjacent to each other. The length of the third side wall 4021 is greater than the length of the fourth side wall 4022.

[0059] As Figure 2 shown, when in use, the first side wall 4011 of the first slider 401 is perpendicularly arranged with the third side wall 4021 of the first chute 402, so that the first slider 401 can be lapped on the second bracket 30. When the bone clamp 10 and the spinous process are displaced, the second bracket 30 is also displaced, and further the first slider 401 slides along the first chute 402 and is displaced. The doctor can record the initial position of the first slider 401 and find that the bone clamp 10 is displaced by comparison.

[0060] Furthermore, a first scale line 4013 is provided on the second side wall 4012 of the first slider 401, and a second scale line 4023 is provided on the surface of the second bracket 30 close to the third side wall 4021 of the first slider 401;

[0061] When the first slider 401 is slidably connected to the first chute 402, the first side wall 4011 and the third side wall 4021 are perpendicularly arranged with each other, and the first scale line 4013 and the second scale line 4023 are correspondingly arranged. When the bone clamp 10 moves relative to the spinous process, the corresponding positions of the first scale line 4013 and the second scale line 4023 change.

[0062] Specifically, multiple second scale lines 4023 can be arranged at intervals. When the first slider 401 is in the initial state, the first scale line 4013 on it is correspondingly arranged with one of the second scale lines 4023. After the bone clamp 10 is offset, the first slider 401 slides, causing the first scale line 4013 to deviate from this second scale line 4023 by a certain distance, and thus being detected by the doctor to find that the bone clamp 10 is offset. At the same time, the deviation angle of the tracer 201 on the first bracket 20 can be calculated through the offset value between the first scale line 4013 and the second scale line 4023. The doctor can compare this deviation angle with the risk value. If the deviation angle is within the risk value, it can be considered that the operation is not affected and no adjustment is required. If it exceeds the risk value, the position of the bone clamp 10 needs to be readjusted to make the positioning of the tracer 201 accurate.

[0063] Meanwhile, in another embodiment of the present invention, on the basis of scale display, an electric signal can be added and connected to the device system to make the displacement value between the first scale line 4013 and the second scale line 4023 more accurate.

[0064] Further, a first convex block 4014 is provided on the first side wall 4011, and a first limiting groove 4024 is provided on the third side wall 4021. The shape and size of the first limiting groove 4024 are the same as those of the first convex block 4014, and the depth of the first limiting groove 4024 is less than the height of the third side wall 4021.

[0065] When the first convex block 4014 is located in the first limiting groove 4024, the displacement monitoring component 40 is used to correct the clamping position of the bone clamp 10 for clamping the spinous process.

[0066] Specifically, as Figure 3 shown, after the positions of the bone clamp 10 and the spinous process are offset, the first slider 401 slides relative to the first sliding groove 402. At this time, the positioning needle 50 is controlled to rotate so that the first side wall 4011 of the first slider 401 is parallel to the third side wall 4021. The bone clamp 10 is controlled to release the spinous process, and the bone clamp 10 is controlled to move so that the first convex block 4014 is located in the first limiting groove 4024 and the first slider 401 is located in the first sliding groove 402. At this time, clamping the bone clamp 10 to the spinous process again can make the positioning of the tracer 201 accurate. In this way, rapid correction of the bone clamp 10 can be achieved without complex operations such as re-calibration and verification, improving the surgical efficiency.

[0067] Further, the displacement monitoring component 40 further includes a locking structure 403. The locking structure 403 includes a first rotating column 4031, a rotating handle 4032, and a first elastic member 4033. The positioning needle 50 penetrates through the first rotating column 4031 and the rotating handle 4032.

[0068] The first rotating column 4031 is fixedly connected to the first slider 401. The first rotating column 4031 passes through the first sliding groove 402. The rotating handle 4032 is sleeved on the first rotating column 4031, and the rotating handle 4032 is threadedly connected to the first rotating column 4031;

[0069] The first elastic member 4033 is arranged between the first slider 401 and the rotating handle 4032. It can be a spring. The first rotating column 4031 passes through the spring. When the first elastic member 4033 is in a compressed state, the first elastic member 4033 is used to make the first slider 401 abut against the second bracket 30.

[0070] With such a setting, by controlling the rotation of the rotating handle 4032 to control the first elastic member 4033 to be in a compressed state, the abutting force between the first slider 401 and the second bracket 30 can be adjusted, and then the fitting between the first slider 401 and the second bracket 30 can be controlled to prevent the first slider 401 from shaking randomly.

[0071] Figure 4 Schematic diagram showing the structure of a bone clip according to an embodiment of the present invention, Figure 5 Schematic diagram showing the structure of a first bracket according to an embodiment of the present invention, as Figure 4 、 5 shown:

[0072] The second bracket 30 includes a detection portion 301 and a mounting portion 302. The mounting portion 302 is located between the two detection portions 301;

[0073] The mounting portion 302 is used to penetrate the bone clip 10. The mounting portion 302 is rotatably connected to the bone clip 10. A first limiting member 303 is arranged on the mounting portion 302. The first limiting member 303 is used to fixedly connect the second bracket 30 and the bone clip 10;

[0074] The detection portion 301 is used for installing the displacement monitoring assembly 40. The detection portion 301 is angularly connected to the mounting portion 302. The detection portion 301 is inclined away from the first bracket 20.

[0075] Specifically, the mounting portion 302 can be set as a rotating shaft. The rotation connection between the two is realized by passing the rotating shaft through the bone clip 10, so that the second bracket 30 can rotate relative to the bone clip 10. At the same time, a first limiting member 303 is arranged on the mounting portion 302. The first limiting member 303 is threadedly connected to the mounting portion 302. When the bone clip 10 rotates relative to the second bracket 30 and rotates in place, the first limiting member 303 can be moved to make it gradually move in the direction close to the bone clip 10, and then abut the bone clip 10 and the second bracket 30 to make the two fixedly connected.

[0076] The detection part 301 inclines away from the first bracket 20, and the inclination angle range is 20 - 40°, preferably 30°. Such a setting enables the tip of the positioning pin 50 and the clamping end of the bone clamp 10 to contact the same spinous process when the positioning pin 50 penetrates through the detection part 301 of the second bracket 30.

[0077] Furthermore, a spherical groove 101 is provided at one end of the bone clamp 10, and a ball head part 202 is provided at the bottom of the first bracket 20. The spherical groove 101 is used for installing the ball head part 202, and the ball head part 202 is rotatably connected to the spherical groove 101;

[0078] A second rotating column 102 is provided on the bone clamp 10. The second rotating column 102 penetrates through the spherical groove 101. A second limiting part 103 is provided on the side wall of the second rotating column 102. The second limiting part 103 is threadedly connected to the second rotating column 102. The second limiting part 103 abuts against the spherical groove 101, or the second limiting part 103 is fixedly connected to the spherical groove 101. The second limiting part 103 is used to control the vertical movement of the spherical groove 101 so that the second rotating column 102 extends into the spherical groove 101 and abuts against the ball head part 202.

[0079] Specifically, the diameter of the notch of the spherical groove 101 is smaller than the diameter of the ball head part 202. A notch is provided on the side wall of the spherical groove 101. When the ball head part 202 is installed into the spherical groove 101, the ball head part 202 is made to expand the spherical groove 101 by further squeezing, and then the ball head part 202 enters the spherical groove 101, enabling the ball head part 202 to rotate in the spherical groove 101 and allowing arbitrary angle adjustment of the tracer 201 on the first bracket 20 so that the tracer 201 is in the best observation area of the camera.

[0080] At the same time, the second limiting part 103 is threadedly connected to the second rotating column 102, and the second limiting part 103 supports the spherical groove 101. When the ball head part 202 is arranged in the spherical groove 101, by controlling the downward movement of the second limiting part 103, the second rotating column 102 gradually extends into the spherical groove 101, abuts against the ball head part 202, and makes the ball head part 202 abut against the inner wall of the spherical groove 101, realizing the fixation of the ball head part 202 and the angle locking of the first bracket 20.

[0081] Furthermore, as Figure 4 shown, the bone clamp 10 includes a first clamping arm 104 and a second clamping arm 105, and the first clamping arm 104 and the second clamping arm 105 are rotatably connected;

[0082] A second elastic part 106 is provided at the rotational connection of the first clamping arm 104 and the second clamping arm 105. The second elastic part 106 is elastically connected to the first clamping arm 104 and the second clamping arm 105 respectively. The second elastic part 106 is used to reset the first clamping arm 104 and the second clamping arm 105;

[0083] When the bone clip 10 is in its initial state, one ends of the first clip arm 104 and the second clip arm 105 that are close to the spinous process are close to each other.

[0084] Specifically, the rotation connection part of the first clip arm 104 and the second clip arm 105 is for the installation part 302 of the second bracket 30 to pass through. It can be a sleeve (not marked in the figure). The first clip arm 104 and the second clip arm 105 are respectively rotationally connected to both sides of the sleeve. When one ends of the first clip arm 104 and the second clip arm 105 are close to each other, the other ends can move away from each other.

[0085] The second elastic member 106 is also sleeved on the sleeve. The second elastic member 106 can be a spring. One end of the spring extends to the first clip arm 104 and is fixedly connected to the first clip arm 104. The other end extends to the second clip arm 105 and is fixedly connected to the second clip arm 105. When one ends of the first clip arm 104 and the second clip arm 105 are close to each other, the spring will be compressed. When not being squeezed, the spring will force the first clip arm 104 and the second clip arm 105 to move away from each other and reset. And when the first clip arm 104 and the second clip arm 105 move away from each other, the other ends will be close to each other. Thus, in the initial state, the bone clip 10 is in a clamped state.

[0086] Furthermore, an anti-slip structure 107 is provided on the surfaces of the first clip arm 104 and the second clip arm 105 that face each other. The anti-slip structure 107 protrudes or depresses from the set surface;

[0087] The anti-slip structure 107 is provided at one ends of the first clip arm 104 and the second clip arm 105 that are close to the spinous process.

[0088] With such a setting, when the first clip arm 104 and the second clip arm 105 clamp the spinous process, the anti-slip structure 107 can increase the friction with the spinous process, and further prevent the bone clip 10 from moving relative to the spinous process.

[0089] In summary, a spinous process clip tracker with displacement monitoring according to the present invention has a function of amplifying and indicating the displacement amount of the bone clip 10, which is convenient for doctors to discover and adjust in time. At the same time, the first scale line 4013 and the second scale line 4023 in the displacement monitoring component 40 can provide an indication in terms of scale for the position restoration of the tracer 201, thereby avoiding the delay and time extension brought by secondary configuration to the operation and improving the operation efficiency.

[0090] The above description is only a preferred embodiment of the present application. Those skilled in the art should understand that the scope of disclosure involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosure concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) disclosed in the present application that have similar functions.

Claims

1. A spinous process clip tracker with displacement monitoring, characterized in that Comprising: A bone clip, one end of which is used to clamp the spinous process; A first bracket, which is detachably connected to the other end of the bone clip, and a tracer is arranged on the first bracket, and the tracer is used to locate the spinous process; A second bracket, which transversely penetrates the bone clip, and the second bracket is rotatably connected to the bone clip so that the bone clip rotates circumferentially along the second bracket; A displacement monitoring component is arranged on the second bracket, the displacement monitoring component is used for the positioning needle to pass through, the positioning needle is used to pierce into the spinous process, and when the bone clip and the positioning needle are fixedly connected to the spinous process, the displacement monitoring component is used to detect whether the bone clip has a displacement relative to the spinous process; The displacement monitoring component includes a first slider and a first sliding groove, the first sliding groove is arranged on the second bracket, the first slider is slidably connected to the first sliding groove, and the positioning needle penetrates through the first slider; The displacement monitoring component is used to detect whether the bone clip has a displacement relative to the spinous process by whether the first slider moves relative to the first sliding groove.

2. The spinous process clip tracker with displacement monitoring according to claim 1, wherein The first slider includes a first side wall and a second side wall, the first side wall and the second side wall are adjacent to each other, the length of the first side wall is greater than the length of the second side wall, the first sliding groove includes a third side wall and a fourth side wall, the third side wall and the fourth side wall are adjacent to each other, and the length of the third side wall is greater than the length of the fourth side wall; A first convex block is arranged on the first side wall, a first limiting groove is arranged on the third side wall, the shape and size of the first limiting groove are equal to those of the first convex block, and the depth of the first limiting groove is less than the height of the third side wall; When the first convex block is located in the first limiting groove, the displacement monitoring component is used to correct the clamping position of the bone clip for clamping the spinous process.

3. The spinous process clip tracker with displacement monitoring according to claim 2, characterized in that, A first scale line is arranged on the second side wall, and a second scale line is arranged on the surface of the second bracket close to the third side wall; When the first slider is slidably connected to the first sliding groove, the first side wall and the third side wall are perpendicularly arranged, the first scale line and the second scale line are correspondingly arranged, and when the bone clip moves relative to the spinous process, the corresponding positions of the first scale line and the second scale line change.

4. The spinous process clip tracker with displacement monitoring according to claim 1, characterized in that, The displacement monitoring component further includes a locking structure, the locking structure includes a first rotating column, a rotating handle and a first elastic member, and the positioning needle penetrates through the first rotating column and the rotating handle; The first rotating column is fixedly connected to the first slider, the first rotating column penetrates through the first sliding groove, the rotating handle is sleeved on the first rotating column, and the rotating handle is threadedly connected to the first rotating column; The first elastic member is arranged between the first slider and the rotating handle, the first rotating column passes through the first elastic member, and when the first elastic member is in a compressed state, the first elastic member is used to make the first slider abut against the second bracket.

5. A spinous process clip tracker with displacement monitoring according to claim 1, characterized in that, The second bracket includes a detection part and an installation part, and the installation part is located between the two detection parts; The installation part is used to penetrate the bone clip. The installation part is rotatably connected to the bone clip, and a first limiting member is arranged on the installation part. The first limiting member is used to fixedly connect the second bracket to the bone clip; The detection part is used for installing the displacement monitoring component. The detection part is angularly connected to the installation part, and the detection part is inclined away from the first bracket.

6. The spinous process clip tracker with displacement monitoring according to claim 1, characterized in that, A spherical groove is arranged at one end of the bone clip, and a ball head part is arranged at the bottom of the first bracket. The spherical groove is used for installing the ball head part, and the ball head part is rotatably connected to the spherical groove; A second rotating column is arranged on the bone clip. The second rotating column penetrates through the spherical groove. A second limiting member is arranged on the side wall of the second rotating column. The second limiting member is threadedly connected to the second rotating column. The second limiting member abuts against the spherical groove. The second limiting member is used to control the vertical movement of the spherical groove so that the second rotating column extends into the spherical groove and abuts against the ball head part.

7. A spinous process clip tracker with displacement monitoring according to claim 1, characterized in that, The bone clip includes a first clip arm and a second clip arm, and the first clip arm and the second clip arm are rotatably connected; A second elastic member is arranged at the rotation connection of the first clip arm and the second clip arm. The second elastic member is elastically connected to the first clip arm and the second clip arm respectively. The second elastic member is used to reset the first clip arm and the second clip arm; In the initial state of the bone clip, the ends of the first clip arm and the second clip arm close to the spinous process are close to each other.

8. The spinous process clip tracker with displacement monitoring according to claim 5, characterized in that, The inclination angle range of the detection part is 20 - 40°.

9. A spinous process clip tracker with displacement monitoring according to claim 7, characterized in that, An anti-slip structure is arranged on the surfaces of the first clip arm and the second clip arm facing each other. The anti-slip structure protrudes or depresses from the set surface; The anti-slip structure is arranged at the ends of the first clip arm and the second clip arm close to the spinous process.

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