Spinous process clip tracker with displacement monitoring function

Abstract

The invention discloses a spinous process clip tracker with a displacement monitoring function, and relates to the technical field of medical instruments, and the spinous process clip tracker comprises a bone clip with one end used for clamping a spinous process; the first support is detachably connected with the other end of the bone clamp, a tracer is arranged on the first support, and the tracer is used for positioning spinous processes; the second support transversely penetrates through the bone clamp, and the second support is rotationally connected with the bone clamp so that the bone clamp can rotate in the circumferential direction of the second support; a displacement monitoring assembly is arranged on the second support and used for allowing the positioning needle to penetrate through, the positioning needle is used for puncturing the spinous process, and when the bone clamp and the positioning needle are fixedly connected with the spinous process, the displacement monitoring assembly is used for detecting whether the bone clamp and the spinous process displace or not. According to the arrangement, the displacement of the bone clamp relative to the spinous process can be amplified and indicated through the displacement monitoring assembly, a doctor can conveniently find and adjust the displacement in time, and operation accidents caused by inaccurate positioning of a tracer are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a spinous process clamp tracker with displacement monitoring function. Background Art

[0002] The spinous process clamp tracker is widely used as a tracer fixator in spinal surgery with surgical navigation robot systems. The relative position stability between the tracer and the patient is the basis for the precise positioning of the robotic arm during surgery. The spinous process clamp tracker is an important component to ensure that the tracer is firmly connected to the patient and the relative position is stable. The use process is as follows: select a segment close to the surgical segment that does not affect the surgical operation as the tracer fixing position, free the muscle tissue around the spinous process after the scalpel incision, and clamp the spinous process clamp tracker with the tracer to the target spinous process and lock it.

[0003] Under normal circumstances, the spinous process clamp tracker can stably support and provide stable position indication for the surgical navigation robot system. However, if a surgical instrument or a doctor touches the spinous process clamp tracker or the beacon on it during the operation, the spinous process clamp tracker may be displaced to a certain extent. If the displacement is large, the doctor can find it, but a relatively small displacement may not be discovered by the doctor. A smaller displacement will cause the problem of navigation accuracy deviation, which will bring risks to the operation. Summary of the invention

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

[0005] To achieve the above object, the present invention provides a spinous process clamp tracker with displacement monitoring, comprising: 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 provided on the first bracket, and the tracer is used to locate the spinous process; A second bracket, which passes through the bone clamp transversely, 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 provided on the second bracket. The displacement monitoring component is used for the positioning needle to pass through. The positioning needle is used to pierce 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 is displaced from the spinous process.

[0006] Preferably, the displacement monitoring assembly comprises a first slider and a first slide groove, the first slide groove is arranged on the second bracket, the first slider is slidably connected to the first slide groove, and the positioning needle passes through the first slider; The displacement monitoring component is used to detect whether the bone clamp is displaced from the spinous process by determining whether the first sliding block moves with the first sliding groove.

[0007] Preferably, the first sliding block includes a first side wall and a second side wall, the first side wall is disposed adjacent to the second side wall, 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 is disposed adjacent to the fourth side wall, 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, and a first limiting groove is arranged on the third side wall, wherein the first limiting groove is equal to the first convex block in shape and size, and the depth of the first limiting groove is less than the height of the third side wall; When the first protrusion is located in the first limiting groove, the displacement monitoring component is used to correct the clamping position of the spinous process by the bone clamp.

[0008] 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; When the first slider is slidably connected to the first sliding groove, the first side wall and the third side wall are arranged perpendicular to each other, the first scale line and the second scale line are arranged corresponding to each other, and when the bone clamp moves relative to the spinous process, the corresponding positions of the first scale line and the second scale line change.

[0009] Preferably, the displacement monitoring assembly further comprises a locking structure, the locking structure comprises a first rotating column, a rotating handle and a first elastic member, and the positioning needle passes through the first rotating column and the rotating handle; The first rotating column is fixedly connected to the first sliding block, the first rotating column passes 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 disposed between the first sliding block and the rotating handle, and 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 sliding block abut against the second bracket.

[0010] Preferably, the second bracket comprises a detection portion and a mounting portion, and the mounting portion is located between the two detection portions; The mounting portion is used to penetrate the bone clamp, the mounting portion is rotatably connected to the bone clamp, a first limiting member is provided on the mounting portion, and the first limiting member is used to fix the second bracket to the bone clamp; The detection portion is used for installing the displacement monitoring component, the detection portion is connected to the installation portion at an angle, and the detection portion is inclined in a direction away from the first bracket.

[0011] Preferably, a spherical groove is provided at one end of the bone clamp, and a ball head is provided at the bottom of the first bracket, the spherical groove is used for installing the ball head, and the ball head is rotatably connected to the spherical groove; A second rotating column is arranged on the bone clamp, and the second rotating column passes through the spherical groove. A second limiting piece is arranged on the side wall of the second rotating column, and the second limiting piece is threadedly connected to the second rotating column, and the second limiting piece abuts against the spherical groove. The second limiting piece 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 piece.

[0012] Preferably, the bone clamp comprises a first clamp arm and a second clamp arm, and the first clamp arm and the second clamp arm are rotatably connected; A second elastic member is provided at the rotation connection between the first clamp arm and the second clamp arm, the second elastic member is elastically connected to the first clamp arm and the second clamp arm respectively, and the second elastic member is used to reset the first clamp arm and the second clamp arm; When the bone clamp is in the initial state, the ends of the first clamp arm and the second clamp arm close to the spinous process are close to each other.

[0013] Preferably, the inclination angle of the detection portion ranges from 20° to 40°.

[0014] Preferably, an anti-slip structure is provided on the surfaces of the first clamp arm and the second clamp arm facing each other, and the anti-slip structure is protruding or recessed from the setting surface; The anti-slip structure is arranged at one end of the first clamp arm and the second clamp arm close to the spinous process.

[0015] Based on this, the beneficial effects of the present invention are: 1. Through the solution of the present invention, a displacement monitoring component is provided on the bone clamp, and the displacement monitoring component is used for positioning the needle to pass through. When in use, the spinous process is clamped by the bone clamp, and the positioning needle is inserted into the spinous process to achieve fixation. When the bone clamp and the spinous process undergo a tiny displacement that cannot be seen by the naked eye, the displacement monitoring component can display the tiny displacement to remind the doctor, thereby ensuring accurate positioning and ensuring the safety of the operation; 2. According to the solution of the present invention, the displacement monitoring component includes a first slide groove and a first slider, the first slide groove is arranged on the second bracket, the first slider is slidably connected with the first slide groove, the positioning needle passes through the first slider and the first slide groove, and at the same time, a first scale line is arranged on the first slider, and a second scale line is circumferentially arranged on the second slide groove. When the bone clamp and the spinous process are displaced, the first slider slides relative to the first slide groove, so that the corresponding positions of the first scale line and the second scale line change. The doctor can calculate the offset degree of the tracer on the first bracket through the deviation values ​​of the two scale lines. If the offset degree does not affect the operation, no adjustment is required. If it does, the bone clamp needs to be realigned; 3. According to the solution of the present invention, a first protrusion is provided on the first slide block, and a first limiting groove is provided in the second slide groove. When the bone clamp and the spinous process are displaced, 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, thereby avoiding recalibration during the surgical process and saving surgical time; 4. Through the solution of the present invention, the first bracket is connected to the bone clamp through the ball head and the spherical groove, so that the first bracket has multiple placement angles, which can make the center plane of the camera the same as the rotation plane, ensuring that the camera is in the best field of view. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 A schematic diagram schematically showing the structure of a spinous process clamp tracker according to an embodiment of the present invention; Figure 2 A diagram schematically showing a first usage state of a displacement monitoring assembly and a second bracket according to an embodiment of the present invention; Figure 3 A diagram schematically showing a second use state of a displacement monitoring assembly and a second bracket according to an embodiment of the present invention; Figure 4 A schematic diagram schematically shows the structure of a bone clamp according to an embodiment of the present invention; Figure 5 A schematic diagram schematically showing the structure of a first bracket according to an embodiment of the present invention; Description of reference numerals: 10-bone clamp, 101-spherical groove, 102-second rotating column, 103-second limiting member, 104-first clamp arm, 105-second clamp 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-installation part, 303-first limiting member, 40-displacement monitoring component, 4 01-first slider, 4011-first side wall, 4012-second side wall, 4013-first scale line, 4014-first protrusion, 402-first slide 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 pin. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0018] 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", "said" and "the" used in the embodiments of the present application are also intended to include plural forms, unless the context clearly indicates other meanings.

[0019] It should be understood that although the terms first, second, third, etc. may be used to describe related structures in the embodiments of the present application, these related structures should not be limited to these terms. These terms are only used to distinguish related structures from each other.

[0020] Depending on the context, the word "if" as used herein may be interpreted as "when" or "when..." Similarly, depending on the context, the phrase "if it is determined" may be interpreted as "when it is determined" or "when (stated condition or event) is detected."

[0021] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that an 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.

[0022] Figure 1 A schematic diagram schematically shows the structure of a spinous process clamp tracker according to an embodiment of the present invention, as shown in FIG. Figure 1 As shown, a spinous process clamp tracker with displacement monitoring of the present invention comprises: A bone clamp 10, one end of which is used to clamp the spinous process; A first bracket 20, which is detachably connected to the other end of the bone clamp 10, and a tracer 201 is provided on the first bracket 20, and the tracer 201 is used to locate the spinous process; The second bracket 30 passes through the bone clamp 10 transversely, and the second bracket 30 is rotatably connected to the bone clamp 10 so that the bone clamp 10 rotates circumferentially along the second bracket 30; A displacement monitoring assembly 40 is provided on the second bracket 30. The displacement monitoring assembly 40 is used for the positioning needle 50 to pass through. The positioning needle 50 is used to pierce the spinous process. When the bone clamp 10 and the positioning needle 50 are fixedly connected to the spinous process, the displacement monitoring assembly 40 is used to detect whether the bone clamp 10 is displaced from the spinous process.

[0023] In traditional technology, after the spinous process clamp tracker clamps the spinous process, the position of the spinous process clamp tracker may change due to the patient's own factors, the doctor's unintentional touch or a slight impact of the equipment. More serious displacement deviations are easy to be discovered, and the doctor can make timely adjustments, while smaller deviations are difficult to be discovered, resulting in inaccurate positioning of the tracer 201, which brings risks to the operation.

[0024] The present invention installs a second bracket 30 on the bone clamp 10 and arranges a displacement monitoring component 40 thereon, which can detect whether the bone clamp 10 and the spinous process are offset. Since a positioning pin 50 is arranged through the displacement monitoring component 40, the positioning pin 50 is also inserted into the spinous process. When the bone clamp 10 and the spinous process are offset, the first bracket 20 and the second bracket 30 connected to the bone clamp 10 will be offset synchronously, while the displacement monitoring component 40 remains in the same position due to the fixing effect of the positioning pin 50, resulting in a change in the relative position of the displacement monitoring component 40 and the second bracket 30, which can be detected by the doctor and can be repositioned and adjusted to ensure the safety of the operation.

[0025] Further, Figure 2 A diagram schematically showing a first usage state of a displacement monitoring assembly and a second bracket according to an embodiment of the present invention, Figure 3 A diagram schematically shows a second usage state of a displacement monitoring assembly and a second bracket according to an embodiment of the present invention, as shown in FIG. Figure 2 , 3 As shown: The displacement monitoring assembly 40 includes a first slider 401 and a first slide groove 402. The first slide groove 402 is disposed on the second bracket 30. The first slider 401 is slidably connected to the first slide groove 402. The positioning pin 50 passes through the first slider 401. The displacement monitoring assembly 40 is used to detect whether the bone clamp 10 is displaced from the spinous process by determining whether the first sliding block 401 moves with the first sliding groove 402 .

[0026] Specifically, the first slider 401 includes a first side wall 4011 and a second side wall 4012, the first side wall 4011 is adjacent to the second side wall 4012, the length of the first side wall 4011 is greater than the length of the second side wall 4012, and the first slide groove 402 includes a third side wall 4021 and a fourth side wall 4022, the third side wall 4021 is adjacent to the fourth side wall 4022, and the length of the third side wall 4021 is greater than the length of the fourth side wall 4022.

[0027] like Figure 2 As shown, when in use, the first side wall 4011 of the first slider 401 is vertically arranged with the third side wall 4021 of the first slide groove 402, so that the first slider 401 can overlap the second bracket 30. When the bone clamp 10 is offset from the spinous process, the second bracket 30 is also offset, thereby causing the first slider 401 to slide and offset along the first slide groove 402. The doctor can record the initial position of the first slider 401 and find out that the bone clamp 10 is offset by comparison.

[0028] 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 third side wall 4021 of the second bracket 30 close to the first slider 401; When the first slider 401 is slidably connected to the first sliding groove 402, the first side wall 4011 and the third side wall 4021 are arranged perpendicular to each other, the first scale line 4013 and the second scale line 4023 are arranged correspondingly, and 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.

[0029] Specifically, a plurality of second scale lines 4023 may be arranged at intervals. When the first slider 401 is in the initial state, the first scale line 4013 thereon is arranged corresponding to one of the second scale lines 4023. When the bone clamp 10 is offset, the first slider 401 slides to cause the first scale line 4013 to deviate from the second scale line 4023 by a certain distance, so that the doctor can detect the offset of the bone clamp 10. At the same time, the deviation angle of the tracer 201 on the first bracket 20 can be inferred by the value of the offset between the first scale line 4013 and the second scale line 4023. The doctor can compare the deviation angle with the risk value. If the deviation angle is within the risk value, it can be considered that it does not affect the operation and no adjustment is required. If it exceeds the risk value, the position of the bone clamp 10 needs to be readjusted to ensure accurate positioning of the tracer 201.

[0030] At the same time, in another embodiment of the present invention, an electrical signal can be added on the basis of the scale display and connected to the equipment system, so that the displacement value between the first scale line 4013 and the second scale line 4023 is more accurate.

[0031] Furthermore, 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 first limiting groove 4024 is equal in shape and size to 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. When the first protrusion 4014 is located in the first limiting groove 4024 , the displacement monitoring assembly 40 is used to correct the clamping position of the spinous process of the bone clamp 10 .

[0032] Specifically, Figure 3 As shown, when the bone clamp 10 is offset from the spinous process, the first slider 401 slides relative to the first slide groove 402. At this time, the positioning pin 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 protrusion 4014 is located in the first limiting groove 4024, and the first slider 401 is located in the first slide groove 402. At this time, the bone clamp 10 can be tightened to the spinous process again to accurately position the tracer 201. In this way, the bone clamp 10 can be quickly corrected without the need for complex operations such as recalibration and verification, thereby improving the efficiency of the operation.

[0033] Furthermore, the displacement monitoring assembly 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, and the positioning needle 50 passes through the first rotating column 4031 and the rotating handle 4032; The first rotating column 4031 is fixedly connected to the first sliding block 401 , and 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 . The first elastic member 4033 is disposed between the first slider 401 and the rotating handle 4032 , and may 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 .

[0034] With such arrangement, by controlling the rotation of the rotating handle 4032 and controlling the first elastic member 4033 to be in a compressed state, the abutment force between the first slider 401 and the second bracket 30 can be adjusted, thereby controlling the first slider 401 to fit the second bracket 30 and preventing the first slider 401 from shaking.

[0035] Figure 4 A schematic diagram schematically shows the structure of a bone clamp according to an embodiment of the present invention. Figure 5 A schematic diagram schematically shows the structure of a first bracket according to an embodiment of the present invention, as shown in FIG. Figure 4 , 5 As shown: The second bracket 30 includes a detection portion 301 and a mounting portion 302, and the mounting portion 302 is located between the two detection portions 301; The mounting portion 302 is used to penetrate the bone clamp 10, and the mounting portion 302 is rotatably connected to the bone clamp 10. A first stopper 303 is provided on the mounting portion 302, and the first stopper 303 is used to fix the second bracket 30 to the bone clamp 10; The detection portion 301 is used for installing the displacement monitoring assembly 40 . The detection portion 301 is connected to the installation portion 302 at an angle, and the detection portion 301 is inclined in a direction away from the first bracket 20 .

[0036] Specifically, the mounting portion 302 can be configured as a rotating shaft, which passes through the bone clamp 10 to achieve a rotational connection between the two, so that the second bracket 30 can rotate relative to the bone clamp 10. At the same time, a first limiting member 303 is provided on the mounting portion 302, and the first limiting member 303 is threadedly connected to the mounting portion 302. When the bone clamp 10 rotates relative to the second bracket 30 and rotates into place, the first limiting member 303 can be moved to gradually move toward the direction close to the bone clamp 10, thereby abutting the bone clamp 10 and the second bracket 30, so that the two are fixedly connected.

[0037] The detection portion 301 is inclined away from the first bracket 20, and its inclination angle range is 20-40°, preferably 30°. This arrangement allows the tip of the positioning needle 50 and the clamping end of the bone clamp 10 to contact the same spinous process when the positioning needle 50 passes through the detection portion 301 of the second bracket 30.

[0038] Furthermore, a spherical groove 101 is provided at one end of the bone clamp 10, and a ball head 202 is provided at the bottom of the first bracket 20. The spherical groove 101 is used for installing the ball head 202, and the ball head 202 is rotatably connected to the spherical groove 101; A second rotating column 102 is arranged on the bone clamp 10, and the second rotating column 102 passes through the spherical groove 101. A second limiting member 103 is arranged on the side wall of the second rotating column 102. The second limiting member 103 is threadedly connected to the second rotating column 102, and the second limiting member 103 abuts against the spherical groove 101, or the second limiting member 103 is fixedly connected to the spherical groove 101. The second limiting member 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 member 202.

[0039] Specifically, the groove diameter of the spherical groove 101 is smaller than the diameter of the ball head component 202, and a notch is provided on the side wall of the spherical groove 101. When the ball head component 202 is installed in the spherical groove 101, the ball head component 202 is further squeezed to open the spherical groove 101, and then the ball head component 202 enters the spherical groove 101, so that the ball head component 202 can rotate in the spherical groove 101, and the tracer 201 on the first bracket 20 can be adjusted to any angle, so that the tracer 201 is in the optimal observation area of ​​the camera.

[0040] At the same time, the second limit member 103 is threadedly connected to the second rotating column 102, and the second limit member 103 supports the spherical groove 101. When the ball head member 202 is set in the spherical groove 101, the second limit member 103 is controlled to move downward, so that the second rotating column 102 gradually extends into the spherical groove 101, abuts the ball head member 202, and makes the ball head member 202 abut against the inner wall of the spherical groove 101, thereby fixing the ball head member 202 and realizing angle locking of the first bracket 20.

[0041] Furthermore, if Figure 4 As shown, the bone clamp 10 includes a first clamp arm 104 and a second clamp arm 105, and the first clamp arm 104 and the second clamp arm 105 are rotatably connected; A second elastic member 106 is provided at the rotation connection between the first clamp arm 104 and the second clamp arm 105. The second elastic member 106 is elastically connected to the first clamp arm 104 and the second clamp arm 105 respectively, and the second elastic member 106 is used to reset the first clamp arm 104 and the second clamp arm 105. When the bone clamp 10 is in the initial state, the ends of the first clamp arm 104 and the second clamp arm 105 close to the spinous process are close to each other.

[0042] Specifically, the rotatable connection between the first clamp arm 104 and the second clamp arm 105 is used for the mounting portion 302 of the second bracket 30 to pass through, which may be a sleeve (not shown in the figure). The first clamp arm 104 and the second clamp arm 105 are rotatably connected to both sides of the sleeve respectively. When one end of the first clamp arm 104 and the second clamp arm 105 are close to each other, the other ends can move away from each other.

[0043] 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 clamp arm 104 and is fixedly connected to the first clamp arm 104, and the other end extends to the second clamp arm 105 and is fixedly connected to the second clamp arm 105. When one end of the first clamp arm 104 and the second clamp arm 105 are close to each other, the spring will be compressed. When there is no squeezing, the spring will force the first clamp arm 104 and the second clamp arm 105 to move away from each other and reset. The moving away of the first clamp arm 104 and the second clamp arm 105 will cause the other ends to move closer to each other, so that in the initial state, the bone clamp 10 is in a clamped state.

[0044] Furthermore, an anti-slip structure 107 is provided on the surfaces of the first clamping arm 104 and the second clamping arm 105 facing each other, and the anti-slip structure 107 is protruding or recessed from the setting surface; The anti-slip structure 107 is disposed at one end of the first clamp arm 104 and the second clamp arm 105 close to the spinous process.

[0045] In this configuration, when the first clamp arm 104 and the second clamp arm 105 clamp the spinous process, the anti-slip structure 107 can increase the friction force with the spinous process, thereby further preventing the bone clamp 10 from moving relative to the spinous process.

[0046] In summary, the spinous process clamp tracker with displacement monitoring of the present invention has the function of amplifying and indicating the displacement of the bone clamp 10, which is convenient for doctors to detect 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 scale indications for the position restoration of the tracer 201, thereby avoiding delays and time extensions caused by secondary configuration to the operation, thereby improving surgical efficiency.

[0047] 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 solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosed concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A spinous process clamp tracker with displacement monitoring, characterized in that: include: 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 provided on the first bracket, and the tracer is used to locate the spinous process; A second bracket, which passes through the bone clamp transversely, 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 provided on the second bracket. The displacement monitoring component is used for the positioning needle to pass through. The positioning needle is used to pierce 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 is displaced from the spinous process.

2. A spinous process clamp tracker with displacement monitoring according to claim 1, characterized in that: The displacement monitoring assembly comprises a first slider and a first slide groove, wherein the first slide groove is arranged on the second bracket, the first slider is slidably connected to the first slide groove, and the positioning pin passes through the first slider; The displacement monitoring component is used to detect whether the bone clamp is displaced from the spinous process by determining whether the first sliding block moves with the first sliding groove.

3. A spinous process clamp tracker with displacement monitoring according to claim 2, characterized in that: The first sliding block includes a first side wall and a second side wall, the first side wall is disposed adjacent to the second side wall, 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 is disposed adjacent to the fourth side wall, 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, and a first limiting groove is arranged on the third side wall, wherein the first limiting groove is equal to the first convex block in shape and size, and the depth of the first limiting groove is less than the height of the third side wall; When the first protrusion is located in the first limiting groove, the displacement monitoring component is used to correct the clamping position of the spinous process by the bone clamp.

4. A spinous process clamp tracker with displacement monitoring according to claim 3, 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 arranged perpendicular to each other, the first scale line and the second scale line are arranged corresponding to each other, and when the bone clamp moves relative to the spinous process, the corresponding positions of the first scale line and the second scale line change.

5. The spinous process clamp tracker with displacement monitoring according to claim 2, characterized in that: The displacement monitoring assembly further comprises a locking structure, the locking structure comprising a first rotating column, a rotating handle and a first elastic member, and the positioning needle passes through the first rotating column and the rotating handle; The first rotating column is fixedly connected to the first sliding block, the first rotating column passes 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 disposed between the first sliding block and the rotating handle, and 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 sliding block abut against the second bracket.

6. The spinous process clamp tracker with displacement monitoring according to claim 1, characterized in that: The second bracket comprises a detection portion and a mounting portion, and the mounting portion is located between the two detection portions; The mounting portion is used to penetrate the bone clamp, the mounting portion is rotatably connected to the bone clamp, a first limiting member is provided on the mounting portion, and the first limiting member is used to fix the second bracket to the bone clamp; The detection portion is used for installing the displacement monitoring component, the detection portion is connected to the installation portion at an angle, and the detection portion is inclined in a direction away from the first bracket.

7. The spinous process clamp tracker with displacement monitoring according to claim 1, characterized in that: A spherical groove is provided at one end of the bone clamp, and a ball head is provided at the bottom of the first bracket, the spherical groove is used for installing the ball head, and the ball head is rotatably connected to the spherical groove; A second rotating column is arranged on the bone clamp, and the second rotating column passes through the spherical groove. A second limiting piece is arranged on the side wall of the second rotating column, and the second limiting piece is threadedly connected to the second rotating column, and the second limiting piece abuts against the spherical groove. The second limiting piece 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 piece.

8. The spinous process clamp tracker with displacement monitoring according to claim 1, characterized in that: The bone clamp comprises a first clamp arm and a second clamp arm, wherein the first clamp arm and the second clamp arm are rotatably connected; A second elastic member is provided at the rotation connection between the first clamp arm and the second clamp arm, the second elastic member is elastically connected to the first clamp arm and the second clamp arm respectively, and the second elastic member is used to reset the first clamp arm and the second clamp arm; When the bone clamp is in the initial state, the ends of the first clamp arm and the second clamp arm close to the spinous process are close to each other.

9. The spinous process clamp tracker with displacement monitoring according to claim 6, characterized in that: The inclination angle of the detection part ranges from 20° to 40°.

10. The spinous process clamp tracker with displacement monitoring according to claim 8, characterized in that: An anti-slip structure is provided on surfaces of the first clamp arm and the second clamp arm facing each other, and the anti-slip structure is protruding or recessed from the setting surface; The anti-slip structure is arranged at one end of the first clamp arm and the second clamp arm close to the spinous process.

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