CN115957004A - Installing support and operation navigation - Google Patents

Abstract

The application provides a mounting bracket and a surgical navigation system, wherein the surgical navigation system comprises a tracer, a connecting rod and a mounting bracket, and the connecting rod is connected between the mounting bracket and the tracer; the mounting bracket comprises a first clamping arm, a second clamping arm, an adjusting device and a bone nail; the first clamping arm is rotatably connected with the second clamping arm, and the adjusting device is respectively connected with the first clamping arm and the second clamping arm so as to adjust the opening and closing angle of the first clamping arm and the second clamping arm; the bone nail is detachably arranged on the first clamping arm or the second clamping arm; the first clamping arm or the second clamping arm is used for being connected with the tracer. The tracer ware can be fixed with the mode that mode and bone nail connected of centre gripping backbone spinous process to the installing support in this application, need not change the installing support according to the operation type of difference, has improved portability and the flexibility of using, and has reduced the manufacturing cost of installing support.

Description

A mounting bracket and surgical navigation system

technical field

The present application belongs to the technical field of medical devices, and more specifically relates to a mounting bracket and a surgical navigation system.

Background technique

The surgical navigation system is a surgical assistance system that guides surgery by generating images of the patient's bones before surgery and registering the patient's position during surgery, which can help doctors locate the operation site more precisely. When using a surgical navigation system for orthopedic surgery, in order to prevent changes in the patient's position or posture from affecting the accuracy of surgical positioning, it is usually necessary to track the patient's position in real time through a tracker.

At present, the tracer is generally fixed by clamping or bone screw connection. Among them, clamping refers to the use of metal clips to fix on the exposed spinous processes of the spine; bone screw connection refers to fixing by pressing the bone nails driven into the tracking site. Due to differences in the type of surgery and the doctor's usage habits, it is often necessary to design different mounting brackets corresponding to the tracer, which is expensive to manufacture and has low flexibility in use.

Contents of the invention

The purpose of the embodiments of the present application is to provide a mounting bracket and a surgical navigation system to solve the technical problems in the prior art that different mounting brackets need to be designed corresponding to the tracers, resulting in high cost and inflexible use.

In order to achieve the above purpose, the technical solution adopted by the present application is: provide a mounting bracket for installing a tracer, the mounting bracket includes a first clamping arm, a second clamping arm, an adjustment device and a bone nail; The first clamping arm is rotatably connected to the second clamping arm, and the adjustment device is respectively connected to the first clamping arm and the second clamping arm to adjust the first clamping arm and the second clamping arm. The opening and closing angle of the second clamping arm; the bone nail is detachably installed on the first clamping arm or the second clamping arm; the first clamping arm or the second clamping arm The holding arm is used to connect with the tracer.

In a possible design, the first clamping arm is rotationally connected to the second clamping arm through a first rotating shaft, and the bone nail is arranged parallel to the first rotating shaft.

In a possible design, the first clamping arm or the second clamping arm is formed with an installation hole for installing a bone screw, and the first clamping arm and/or the second clamping arm The arm is provided with a locking structure for locking the bone nail.

In a possible design, one of the first clamping arm and the second clamping arm is provided with an installation hole for installing the bone screw, and the first clamping arm and the second clamping arm A resisting member is provided on the other of the second clamping arm, and the resisting member presses against the bone nail when the first clamping arm and the second clamping arm approach each other.

In a possible design, the resisting member is rotatably arranged on the first clamping arm or the second clamping arm, and the resisting member can respectively connect at least two The bone nail is pressed tightly.

In a possible design, the adjusting device includes a screw and a nut, the screw is arranged through the first clamping arm and the second clamping arm respectively, and one end of the screw is positioned on the first clamping arm. On the holding arm, the other end of the screw rod extends to the side of the second clamping arm away from the first clamping arm, the nut is threaded on the other end of the screw rod, and the nut abuts against the On the second clamping arm, rotating the nut can drive the second clamping arm to rotate to approach or move away from the first clamping arm.

In a possible design, the adjustment device further includes a first rotating column and a second rotating column, a first insertion hole is provided on the first clamping arm, and a first insertion hole is provided on the second clamping wall. Two sockets, the first rotating column is rotatably set in the first socket, the second rotating column is rotatably set in the second socket, and the screw rod vertically passes through the first rotating column in turn It is arranged with the second rotating column, one end of the screw is fixed on the first rotating column, and the second rotating column is slidingly matched with the screw.

In a possible design, at least two first protruding teeth are provided on the first clamping arm, at least two second protruding teeth are provided on the second clamping arm, each of the first protruding teeth The teeth are arranged in a staggered manner with each of the second protruding teeth.

The beneficial effect of the installation bracket provided by the application lies in: the installation bracket provided by the embodiment of the application, the application sets a detachable bone nail on the first clamping arm or the second clamping arm, so that the installation bracket can not only The tracker can be fixed by clamping the spinous process of the spine by the first clamping arm and the second clamping arm, and the tracker can also be fixed by bone nail connection. Doctors can choose the tracker according to their own habits. Fixing method, and different operation types can choose different installation methods to install the tracer through the same installation bracket, no need to replace the installation bracket according to different operation types, which improves the portability and flexibility of use, and reduces the installation cost. The manufacturing cost of the bracket is low, and only one installation bracket needs to be designed to meet different installation requirements. In addition, the arrangement of the adjusting device can ensure the reliability of the clamping between the first clamping arm and the second clamping arm.

On the other hand, the present application also provides a surgical navigation system, including a tracer, a connecting rod and the above-mentioned installation bracket, and the connection rod is connected between the installation bracket and the tracer; the tracer The device is installed on the connecting rod in an angle-adjustable manner, and/or, the connecting rod is installed on the mounting bracket in an angle-adjustable manner.

In a possible design, one end of the connecting rod has a first connecting portion, and the first clamping arm or the second clamping arm is provided with a second connecting portion, and the first connecting portion is a First occlusal teeth are distributed along the circumference of the side, and second occlusal teeth are distributed along the circumferential direction on one side of the second connecting part, and the first occlusal teeth and the second occlusal teeth can engage with each other; the surgical navigation system A locking piece is also included, and the locking piece is respectively passed through the first connecting portion and the second connecting portion and locked.

The beneficial effect of the surgical navigation system provided by the present application is that: the surgical navigation system provided by the embodiment of the present application, through the setting of the above-mentioned installation bracket, can fix the tracer by clamping the spinous process of the spine and connecting it with a bone nail, The installation bracket does not need to be replaced according to different operation types, the portability and flexibility of use are improved, and the manufacturing cost of the installation bracket is reduced.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the accompanying drawings that need to be used in the descriptions of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings in the following description are only for the present application For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without paying creative efforts.

FIG. 1 is a three-dimensional schematic diagram of a surgical navigation system provided by an embodiment of the present application;

Fig. 2 is a structural schematic diagram of the mounting bracket in Fig. 1;

Fig. 3 is an exploded schematic view of the mounting bracket in Fig. 2;

Fig. 4 is a schematic cross-sectional view of the surgical navigation system in Fig. 1;

Fig. 5 is a schematic cross-sectional view of the mounting bracket in Fig. 2 along the radial plane of the screw;

Fig. 6 is a schematic structural view of the first clamping arm in Fig. 2;

FIG. 7 is a schematic structural diagram of the second clamping arm in FIG. 2 .

Wherein, each reference sign in the figure:

1. Mounting bracket; 11. First clamping arm; 111. First movable slot; 112. First protruding tooth; 113. First installation slot; 114. Adapter; 115. First jack; 12. Second Two clamping arms; 121, mounting hole; 1211, circular part; 1212, conical part; 122, second movable groove; 123, second convex tooth; 124, second connecting part; 1241, second occlusal tooth; , the second installation groove; 126, the second jack; 13, the first rotating shaft; 14, the adjustment device; 141, the screw; 142, the nut; 1421, the rotating part; 1422, the handle; 143, the first rotating column; 144, 1441, limiting surface; 145, fixed pin; 15, bone nail; 16, pressing member; 161, abutting surface; 17, second rotating shaft; 2, connecting rod; ; 211, the first occlusal teeth; 3, the tracer; 4, the locking member.

Detailed ways

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

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

It is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, rather than indicating or implying No device or element must have a particular orientation, be constructed, and operate in a particular orientation, and thus should not be construed as limiting the application.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present application, "plurality" means two or more, unless otherwise specifically defined.

Referring to FIG. 1 , the installation bracket 1 provided by the embodiment of the present application will now be described. The mounting bracket 1 is used to install the tracer 3 , specifically to fix the tracer 3 on the part to be tracked, so that the position of the patient can be tracked in real time through the tracer 3 .

The mounting bracket 1 includes a first clamping arm 11, a second clamping arm 12, an adjustment device 14 and a bone nail 15; The holding arm 11 and the second holding arm 12 are connected to adjust the opening and closing angle of the first holding arm 11 and the second holding arm 12; the bone nail 15 is detachably mounted on the first holding arm 11 or the second holding arm On the arm 12 ; the first clamping arm 11 or the second clamping arm 12 is used to connect with the tracer 3 .

Wherein, the first clamping arm 11 is rotationally connected with the second clamping arm 12, which may be that one end of the first clamping arm 11 is rotationally connected with one end of the second clamping arm 12, and then the other end of the first clamping arm 11 is connected to The other end of the second clamping arm 12 is close to each other to be clamped on the exposed spinous process of the spine for fixation, and finally the first clamping arm 11 and the second clamping arm 12 are kept at the clamping angle by the adjusting device 14, To maintain the clamping stability; when it needs to be disassembled, the opening and closing angle between the first clamping arm 11 and the second clamping arm 12 is first increased by the adjusting device 14, so that the first clamping arm 11 and the second clamping arm 12 The two clamping arms 12 release the spinous processes of the spine. It can be understood that in other embodiments of the present application, the position near the middle of the first clamping arm 11 can also be rotationally connected with the position close to the middle of the second clamping arm 12 , and then through the first clamping arm 11 One end and one end of the second clamping arm 12 are close to each other so as to be clamped on the exposed spinous process of the spine for fixation, which is not limited herein.

It should be noted that the bone nail 15 is detachably installed on the first clamping arm 11 or the second clamping arm 12, when the first clamping arm 11 and the second clamping arm 12 are used to fix the tracer 3, In order to prevent the bone screw 15 from affecting the clamping effect, the bone screw 15 is generally disassembled from the first clamping arm 11 or the second clamping arm 12 .

When it is necessary to install the tracer 3 in a manner connected with bone nails 15 due to the needs of the type of operation or the doctor's habit, the bone nails 15 are installed on the first clamping arm 11 or the second clamping arm 12, and then Utilize the bone nail 15 to compress and drive into the tracking site for fixation.

Wherein, the number of bone nails 15 is generally two or more, because the bone nails 15 are inserted into the tracking part through threaded connection, if fixed by one bone nail 15, it is easy to cause the bone nails 15 to rotate and cause the tracer 3. The installation is unstable, but two or more bone nails 15 can avoid the problem of bone nails 15 autorotation. Preferably, the number of bone nails 15 is generally two, which can reduce trauma to the human body while ensuring stable installation.

In summary, the present application arranges detachable bone nails 15 on the first clamping arm 11 or the second clamping arm 12, so that the mounting bracket 1 can not only pass through the first clamping arm 11 and the second clamping arm 12 The tracer 3 is fixed by holding the spinous process of the spine with the holding arm 12, and the tracer 3 can also be fixed by connecting the bone nail 15. The doctor can choose the fixation method of the tracer 3 according to his own usage habits, and different Different types of surgery can use the same installation bracket 1 to choose different installation methods to install the tracer 3, and there is no need to replace the installation bracket 1 according to different operation types, which improves the portability and flexibility of use, and reduces the installation bracket 1 The manufacturing cost is low, and only one installation bracket 1 needs to be designed to meet different installation requirements.

In one embodiment, please refer to FIG. 2 to FIG. 4 , the first clamping arm 11 and the second clamping arm 12 are rotationally connected through the first rotating shaft 13, and the bone nail 15 is arranged parallel to the first rotating shaft 13, that is, the second The opening and closing clamping action of a clamping arm 11 and the second clamping arm 12 will not interfere with the length extension direction of the bone screw 15, so that the setting of the bone screw 15 will not interfere with the first clamping arm 11 and the second clamping arm 11. The opening and closing of the clamping arm 12 has an impact, and the existence of the first clamping arm 11 and the second clamping arm 12 will not affect the installation of the bone nail 15, and the first clamping arm 11 or the second clamping arm 12 acts as a The role of the mount for bone nail 15. It can be understood that in other embodiments of the present application, as long as the installation position and installation method of the bone screw 15 are reasonable, the bone screw 15 can also be perpendicular to the first rotation axis 13 or form an acute angle relationship, which is not limited here.

In one embodiment, please refer to FIG. 2 and FIG. 3 , the first clamping arm 11 or the second clamping arm 12 is formed with a mounting hole 121 for installing the bone screw 15 , the first clamping arm 11 and/or the second clamping arm 11 The second clamping arm 12 is provided with a locking structure for locking the bone screw 15 . During installation, one end of the bone screw 15 can be inserted into the installation hole 121 , and then one end of the bone screw 15 can be locked by a locking structure, so as to realize the installation of the bone screw 15 .

In a specific embodiment, please refer to FIG. 2 and FIG. 4 , one of the first clamping arm 11 and the second clamping arm 12 is provided with a mounting hole 121 for installing a bone screw 15 , the first clamping The other one of the arm 11 and the second clamping arm 12 is provided with a resisting member 16 , and the resisting member 16 is pressed against the bone nail 15 when the first clamping arm 11 and the second clamping arm 12 approach each other. When installing, firstly put one end of the bone nail 15 through the installation hole 121, and then adjust the opening and closing angle between the first clamping arm 11 and the second clamping arm 12 through the adjusting device 14 until the tensioning part 16 against the bone nail 15, so that the bone nail 15 is locked and fixed. That is to say, in this embodiment, not only the opening and closing angles of the first clamping arm 11 and the second clamping arm 12 can be adjusted through the adjusting device 14, but also the adjustment device 14 can be used to control the impact of the pressing member 16 on the bone nail 15. The abutting reliability ensures that the bone nail 15 is locked securely. In addition, the locking of the bone screw 15 and the clamping and locking of the two clamping arms are realized through the same adjustment device 14 , which has a simple structure, saves the design cost of the locking structure of the bone screw 15 , and simplifies the entire structure. It can be understood that in other embodiments of the present application, the bone screw 15 can also be locked directly through the locking bolt. For example, when the bone screw 15 is installed on the second clamping arm 12, the A locking bolt is installed on the arm 12 , and the locking bolt 15 is locked by rotating the locking bolt so that the end of the locking bolt abuts against the surface of the bone screw 15 .

Optionally, in this embodiment, the first clamping arm 11 is fixed, and the second clamping arm 12 is rotated under the drive of the adjustment device 14 to approach or move away from the first clamping arm 11; the mounting hole 121 is formed in the second clamping arm 12 On the second clamping arm 12 , the resisting member 16 is disposed on the first clamping arm 11 . When using the clamping method to fix the tracer 3, the first clamping arm 11 and the second clamping arm 12 are clamped on the spinous process of the spine, and then the second clamping arm 12 is driven to the first clamping by the adjusting device 14. The holding arm 11 is rotated close to and locked, so that the first holding arm 11 and the second holding arm 12 are firmly held on the spinous process of the spine; One end of the nail 15 is set through the mounting hole 121, and then the second clamping arm 12 is driven to rotate toward the first clamping arm 11 through the adjusting device 14, so that the pressing member 16 on the first clamping arm 11 is pressed against the bone. On the nail 15, the locking and fixing of the bone nail 15 is realized. It can be understood that, in other embodiments of the present application, the second clamping arm 12 can also be fixedly arranged, and the first clamping arm 11 can be arranged movably, or the first clamping arm 11 and the second clamping arm can also be arranged 12 are movable; in addition, the installation hole 121 can also be formed on the fixed first clamping arm 11, and the pressing member 16 can be installed on the movable second clamping arm 12, and there is no unique limitation here .

In one embodiment, the resisting member 16 is rotatably disposed on the first clamping arm 11 or the second clamping arm 12 , and the resisting member 16 can respectively abut at least two bone screws 15 on the same straight line. For example, the resisting member 16 is rotated on the first clamping arm 11, and the second clamping arm 12 is provided with two bone nails 15. When the second clamping arm 12 approaches the first clamping arm 11, the bone The nail 15 also approaches the pressing member 16 accordingly, and the pressing member 16 can be driven to rotate by the bone nail 15 when it touches one of the bone screws 15 so that the pressing member 16 just abuts against the two bone nails 15, Therefore, the locking and positioning of two or more bone screws 15 can be realized through one pressing member 16 , and there is no need to provide a pressing member 16 for each bone screw 15 , saving the number of pressing members 16 . In addition, due to the design of the rotation of the pressing member 16, even when the size or installation position of the bone screw 15 deviates due to processing errors or assembly errors, the bone screw 15 can be fitted and locked by the rotation of the pressing member 16. Tight fix.

Please refer to Fig. 4, the abutment member 16 has an abutment surface 161, the abutment surface 161 is a plane, and the abutment surface 161 is used to abut against two or more bone screws 15 on the same straight line to fix the bone screws 15.

Please refer to Fig. 2, the radial section of mounting hole 121 comprises circular part 1211 and conical part 1212, and circular part 1211 is circular, and conical part 1212 communicates with the periphery of circular part 1211, and the width of conical part 1212 is by circular Portion 1211 tapers away from circular portion 1211 to zero. During installation, the bone screw 15 is passed through the circular portion 1211, and when the pressing member 16 abuts against the bone screw 15, at least part of the bone screw 15 is accommodated in the conical portion 1212, thereby increasing the connection between the bone screw 15 and the second At the same time, due to the setting of the conical part 1211, when there is a fit error between the circular part 1211 and the bone screw 15, it can be compensated by the conical part 1211 to ensure that the bone screw 15 is securely installed.

In one embodiment, please refer to FIG. 2 , FIG. 3 and FIG. 5 , the adjusting device 14 includes a screw 141 and a nut 142 , the screw 141 is set through the first clamping arm 11 and the second clamping arm 12 respectively, and one end of the screw 141 is positioned On the first clamping arm 11, the other end of the screw rod 141 extends to the side of the second clamping arm 12 away from the first clamping arm 11, and the nut 142 is threaded on the other end of the screw rod 141, and the nut 142 abuts against the second clamping arm 11. On the second clamping arm 12 , the rotating nut 142 can drive the second clamping arm 12 to rotate to approach or move away from the first clamping arm 11 .

Wherein, the nut 142 is threadedly connected with the screw rod 141, and one end of the screw rod 141 is positioned on the first clamping arm 11, and when the nut 142 rotates clockwise on the screw rod 141, it will move along the screw rod 141 to the direction of the first clamping arm 11. Moving, the movement of the nut 142 on the screw rod 141 will push the second clamping arm 12 to rotate and approach the first clamping arm 11, so that the first clamping arm 11 and the second clamping arm 12 jointly clamp the spinous process of the spine; When the nut 142 rotates counterclockwise on the screw 141, it will move away from the first clamping arm 11 along the screw 141, and the pressing force acting on the second clamping arm 12 will disappear, and the second clamping arm 12 will The following nut 142 is rotated away from the first clamping arm 11 to loosen the spinous process of the spine.

In this embodiment, please refer to FIG. 2 , one end of the first clamping arm 11 and one end of the second clamping arm 12 are rotatably connected through the first rotating shaft 13 , and the screw rod 141 runs through the position near the middle of the first clamping arm 11 and the second clamping arm 12 respectively. The position of the second clamping arm 12 near the middle, when the nut 142 is rotated clockwise, the nut 142 pushes the second clamping arm 12 near the middle so that the second clamping arm 12 rotates around its one end and moves toward the first clamping arm. 11, so that the other end of the first clamping arm 11 and the other end of the second clamping arm 12 can approach each other to clamp the spinous process of the spine. It can be understood that in other embodiments of the present application, the first rotating shaft 13 can also be arranged at the position close to the middle of the first clamping arm 11 and the second clamping arm 12, and the screw rod 141 can pass through the first clamping arm 11 and the second clamping arm 12. The positions of one end of the arm 11 and one end of the second clamping arm 12 can also realize the clamping effect of the first clamping arm 11 and the second clamping arm 12 .

5, the nut 142 is T-shaped, and the nut 142 includes a rotating part 1421 threaded on the screw rod 141 and a handle 1422 connected with the rotating part 1421.

In one embodiment, please refer to FIG. 2 , FIG. 3 and FIG. 5 , the adjusting device 14 further includes a first rotating post 143 and a second rotating post 144 , the first clamping arm 11 is provided with a first insertion hole 115 , the second The second clamping arm 12 is provided with a second socket 126, the first rotating column 143 is rotated in the first socket 115, the second rotating column 144 is rotated in the second socket 126, and the screw rod 141 vertically passes through the second socket 126 in turn. A rotating post 143 and a second rotating post 144 are provided. One end of the screw rod 141 is fixed on the first rotating post 143 , and the second rotating post 144 is slidingly matched with the screw rod 141 .

Wherein, please refer to FIG. 2 , the first rotating post 143 and the second rotating post 144 are arranged in parallel, and both are arranged in parallel with the first rotating shaft 13 . Since the positions of the first insertion hole 115 and the second insertion hole 126 are constant, the position of the first rotation column 143 on the first clamping arm 11 is unchanged, and the position of the second rotation column 144 on the second clamping arm 12 is constant. The location is also unchanged. When the nut 142 rotates to push the second clamping arm 12, the second clamping arm 12 rotates, and the angle between the screw rod 141 and the second clamping arm 12 changes, and the screw rod 141 will be in the second clamping arm 12. The swing in the arm 12 causes the screw rod 141 and the second clamping arm 12 to be installed unstable, and the setting of the second rotating column 144 makes the connection between the second clamping arm 12 and the screw rod 141 through the second rotating column 144, and The position of the second rotating column 144 remains unchanged, thereby limiting the position where the second clamping arm 12 is connected to the screw rod 141, and meanwhile, the rotation of the second rotating column 144 relative to the second clamping arm 12 can be used to adapt to the connection between the screw rod 141 and the screw rod 141. The angle change between the second clamping arms 12 further ensures the connection reliability between the second clamping arms 12 and the screw rod 141 .

Likewise, the function of the first rotating post 143 is the same as that of the second rotating post 144 , and the first rotating post 143 ensures the reliability of the connection between the screw rod 141 and the first clamping arm 11 . The difference is that the first rotating post 143 is fixedly connected to the screw rod 141 , and the second rotating post 144 is slidingly connected to the screw rod 141 .

Please refer to Fig. 2, Fig. 3 and Fig. 5, the adjustment device 14 also includes a fixed pin 145, the fixed pin 145 is located in the center hole of the first rotating column 143 and forms an insertion fit with one end of the screw rod 141, thereby limiting the screw rod 141 and the first A relative displacement is generated between the rotating columns 143 .

Please refer to Figures 5 to 7, since the screw 141 needs to swing slightly on the first clamping arm 11 and the second clamping arm 12, in order to avoid structural interference, the first clamping arm 11 is formed with a first movable groove 111 , the second clamping arm 12 is formed with a second movable groove 122 for the screw rod 141 to swing.

Please refer to FIG. 5 to FIG. 7 , in order to realize the rotation of the pressing member 16 and the abutment against the bone screw 15 , the first clamping arm 11 is formed with a first installation groove 113 , and the pressing member 16 rotates through the second rotating shaft 17 Located on the first clamping arm 11, the first installation groove 113 is used to install the part connecting the pressing member 16 and the second rotating shaft 17; the second clamping arm 12 is formed with a second installation groove 125, the second installation groove 125 is used for accommodating the part of the pressing member 16 for abutting against the bone screw 15 . In addition, one end of the first clamping arm 11 has an adapter portion 114 , and the adapter portion 114 extends into the second installation groove 125 and is rotatably disposed on the first rotating shaft 13 .

Please refer to FIG. 4 , the second rotating column 144 is provided with a limiting surface 1441, and the limiting surface 1441 is set in abutment with one end of the nut 142, so that the nut 142 and the second rotating column 144 are planarly abutted, and the abutment is more stable. .

In one embodiment, please refer to FIG. 2 , at least two first protruding teeth 112 are provided on the other end of the first clamping arm 11, and at least two second protruding teeth 123 are provided on the other end of the second clamping arm 12. , when the other end of the first clamping arm 11 and the other end of the second clamping arm 12 clamp each other, each first protruding tooth 112 and each second protruding tooth 123 are respectively inserted into the spinous process of the spine to achieve firm positioning.

Optionally, please refer to FIG. 2 , each first protruding tooth 112 and each second protruding tooth 123 are staggered, that is, each first protruding tooth 112 and each second protruding tooth 123 are respectively inserted into different positions of the spinous process of the spine, The staggered force is formed, so that the clamping force on the spinous process of the spine is tighter, and the fixation is tighter and more secure.

On the other hand, referring to Fig. 1, the present application also provides a surgical navigation system, including a tracer 3, a connecting rod 2 and the above-mentioned mounting bracket 1, and the connecting rod 2 is connected between the mounting bracket 1 and the tracer 3 ; The tracer 3 is installed on the connecting rod 2 in an angle-adjustable manner, and/or, the connecting rod 2 is installed on the mounting bracket 1 in an angle-adjustable manner.

Wherein, the tracer 3 is installed on the connecting rod 2 in an adjustable manner, and/or the connecting rod 2 is installed on the mounting bracket 1 in an adjustable manner, so that the swing of the tracer 3 can be adjusted as required. Adjust the camera angle for clearer and more precise tracking.

In one embodiment, the connecting rod 2 is connected to the second clamping arm 12 in an angle-adjustable manner, and the placement angle of the tracer 3 can be adjusted by adjusting the angle of the connecting rod 2 on the second clamping arm 12 . It can be understood that in other embodiments of the present application, the installation angle of the tracer 3 on the connecting rod 2 can also be set to be adjustable.

In one embodiment, please refer to FIG. 4, one end of the connecting rod 2 has a first connecting portion 21, the second clamping arm 12 is provided with a second connecting portion 124, and one side of the first connecting portion 21 is distributed along the circumference. One occlusal tooth 211, second occlusal teeth 1241 are distributed along the circumferential direction on one side of the second connecting part 124, the first occlusal teeth 211 and the second occlusal teeth 1241 can engage with each other; the surgical navigation system also includes a locking member 4, locking The pieces 4 respectively pass through the first connecting portion 21 and the second connecting portion 124 and are locked. When installing, the locking member 4 is sequentially penetrated through the first connecting part 21 and the second connecting part 124, and then the connecting rod 2 is rotated according to the angle at which the tracer 3 needs to be placed, and each first engaging tooth 211 is aligned with the second connecting part 124. The second engaging teeth 1241 are engaged one by one, and finally the first connecting part 21 and the second connecting part 124 are locked by the locking member 4, thereby realizing the locking of the connecting rod 2 and the second clamping arm 12, and because The mutual engagement of the first meshing teeth 211 and the second meshing teeth 1241 makes the connection between the connecting rod 2 and the second clamping arm 12 more reliable, and no rotation will be found; in addition, the placement of the tracer 3 can also be adjusted according to needs. to adjust the angle.

Please refer to FIG. 1 , the rotation axis of the locking member 4 is perpendicular to the connecting rod 2 , and the rotation axis of the locking member 4 is perpendicular to the first rotating shaft 13 . Taking FIG. 1 as an example, the pitch angle of the tracker 3 along the front-back direction can be adjusted through the first connection part 21 and the second connection part 124 .

The above descriptions are only preferred embodiments of the application, and are not intended to limit the application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the application should be included in the protection of the application. within range.

Claims (10)

1. A mounting bracket is used for mounting a tracer, and is characterized by comprising a first clamping arm, a second clamping arm, an adjusting device and bone nails; the first clamping arm is rotatably connected with the second clamping arm, and the adjusting device is respectively connected with the first clamping arm and the second clamping arm so as to adjust the opening and closing angle of the first clamping arm and the second clamping arm; the bone nail is detachably arranged on the first clamping arm or the second clamping arm; the first or second clamp arm is for connecting with the tracer.

2. The mounting bracket of claim 1, wherein the first clamping arm is rotatably coupled to the second clamping arm by a first pivot axis, and the bone pin is disposed parallel to the first pivot axis.

3. The mounting bracket of claim 1, wherein the first clamping arm or the second clamping arm is formed with a mounting hole for mounting a bone screw, and the first clamping arm and/or the second clamping arm is provided with a locking structure for locking the bone screw.

4. The mounting bracket of claim 1, wherein one of the first clamping arm and the second clamping arm defines a mounting hole for mounting the bone screw, and the other of the first clamping arm and the second clamping arm defines an abutment member for abutting the bone screw when the first clamping arm and the second clamping arm are moved toward each other.

5. The mounting bracket of claim 4 wherein the abutment member is rotatably disposed on the first clamping arm or the second clamping arm, and the abutment member is capable of abutting against at least two of the bone nails in a same line.

6. The mounting bracket of any one of claims 1 to 5, wherein the adjustment device comprises a screw and a nut, the screw is disposed through the first clamping arm and the second clamping arm respectively, one end of the screw is positioned on the first clamping arm, the other end of the screw extends to a side of the second clamping arm away from the first clamping arm, the nut is threaded on the other end of the screw, the nut abuts against the second clamping arm, and rotating the nut can drive the second clamping arm to rotate to approach or depart from the first clamping arm.

7. The mounting bracket according to claim 6, wherein the adjusting device further comprises a first rotating column and a second rotating column, the first clamping arm is provided with a first insertion hole, the second clamping wall is provided with a second insertion hole, the first rotating column is rotatably disposed in the first insertion hole, the second rotating column is rotatably disposed in the second insertion hole, the screw rod sequentially and vertically penetrates through the first rotating column and the second rotating column, one end of the screw rod is fixed on the first rotating column, and the second rotating column is slidably engaged with the screw rod.

8. The mounting bracket of any one of claims 1 to 5, wherein the first retaining arm is provided with at least two first teeth and the second retaining arm is provided with at least two second teeth, each of the first teeth being offset from each of the second teeth.

9. A surgical navigation system comprising a tracer, a connecting rod and a mounting bracket according to any one of claims 1 to 8, the connecting rod being connected between the mounting bracket and the tracer; the tracer is mounted on the connecting rod in an angularly adjustable manner and/or the connecting rod is mounted on the mounting bracket in an angularly adjustable manner.

10. The surgical guidance system of claim 9, wherein one end of the connecting rod has a first connecting portion, a second connecting portion is disposed on the first clamping arm or the second clamping arm, first engaging teeth are circumferentially distributed on one side of the first connecting portion, second engaging teeth are circumferentially distributed on one side of the second connecting portion, and the first engaging teeth and the second engaging teeth can be engaged with each other; the operation navigation system further comprises a locking piece, and the locking piece penetrates through the first connecting portion and the second connecting portion and is locked.

Images