An orthopedic navigation tracker fixation device

Abstract

The utility model relates to orthopaedic surgery technical field, and disclose a kind of orthopaedic navigation tracer's fixing device, including mainboard, the mainboard top is clamped with cable tie, mainboard top is clamped with connecting plate, the mainboard top is threadedly connected with hollow screw, and hollow screw penetrates cable tie, the connecting plate top is threadedly connected with first threaded bolt, and first threaded bolt extends to hollow screw inner cavity, and the connecting plate top is fixedly connected with base;This orthopaedic navigation tracer's fixing device, utilize cable tie and be bound in the backbone lateral wall, and cable tie is penetrated from mainboard bottom, while cable tie is taut, again utilize hollow screw and penetrate cable tie, cable tie is fixed in mainboard top, subsequently first threaded bolt can be utilized and penetrate connecting plate and extend to hollow screw inner cavity, thus the base on the connecting plate top is fixedly installed, screw does not need to drill into backbone interior to realize fixation, and it plays the effect of protecting backbone.

Description

Technical Field

[0001] This utility model relates to the field of orthopedic surgery technology, specifically to a fixation device for an orthopedic navigation tracker. Background Technology

[0002] During orthopedic navigation surgery, it is often necessary to fix the tracer at a specific location on the bone shaft. Current methods for fixing minimally invasive bone tracers involve using screws or metal pins to secure the tracer to the bone shaft.

[0003] Directly drilling screws into the bone shaft can easily cause the following problems: (1) Space-occupying effect: Metal pins or screws will occupy the space in the medullary cavity, which is not suitable for surgeries that require implantation of prostheses or internal fixation devices in the medullary cavity of the bone shaft, such as total hip replacement and intramedullary nail implantation; (2) Fracture risk: Metal pins or screws fixed in the bone shaft will leave pin holes or nail holes, which is not suitable for surgeries with high fracture risk, such as revision of total hip arthroplasty and surgery for severe bone shaft deformities; (3) Poor fixation effect: The fixation effect of metal pins or screws fixed in the bone shaft depends on the holding force of the metal pins or screws on the bone. The bone quality has a significant impact on the fixation effect. For patients with cancellous bone or osteoporosis, loosening is likely to occur, resulting in loss of accuracy of navigation surgery. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a fixation device for an orthopedic navigation tracker, which has the advantage of binding and fixing the skeleton, avoiding the problem of screws being drilled into the skeleton for fixation.

[0005] To achieve the purpose of fixing the binding backbone, this utility model provides the following technical solution:

[0006] A fixation device for an orthopedic navigation tracker includes a main board, a cable tie snapped onto the top of the main board, a connecting plate snapped onto the top of the main board, and further includes:

[0007] The motherboard is threaded with a hollow screw at the top, and the hollow screw passes through a cable tie. The connecting plate is threaded with a first threaded bolt at the top, and the first threaded bolt extends into the cavity of the hollow screw. The connecting plate is fixedly connected with a base at the top.

[0008] According to some embodiments, the base has a first sliding groove at the top, a first connecting block is slidably connected to the inner wall of the first sliding groove, a second sliding groove is provided at the top of the first connecting block, a second connecting block is slidably connected to the inner wall of the second sliding groove, and a navigation tracking device is fixedly connected to the top of the second connecting block.

[0009] According to some embodiments, the top of the first connecting block is threaded with a second threaded bolt, which is used to fix the first connecting block, and the top of the second connecting block is threaded with a third threaded bolt, which is used to fix the second connecting block.

[0010] Beneficial effects

[0011] This utility model provides a fixation device for an orthopedic navigation tracker, which has the following beneficial effects:

[0012] (1) The fixation device of the orthopedic navigation tracker uses a cable tie to bind the bone shaft side wall and passes through the bottom of the main board. At the same time, the cable tie is tightened and then a hollow screw is used to pass through the cable tie to fix the cable tie to the top of the main board. Then, the first threaded bolt can be used to pass through the connecting plate and extend to the inner cavity of the hollow screw, thereby fixing the base on the top of the connecting plate. In summary, the screw does not need to be drilled into the bone shaft to achieve fixation, which has the effect of protecting the bone shaft.

[0013] (2) The fixing device of the orthopedic navigation tracer uses the first connecting block to slide in the first groove cavity to adjust the position of the navigation tracer. At the same time, the second connecting block in the second groove cavity can also adjust the position of the navigation tracer, which facilitates the subsequent use of the navigation tracer. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the device of this utility model;

[0015] Figure 2 This is a schematic diagram of the fixing structure of the cable tie and connecting plate of this utility model;

[0016] Figure 3 This is a structural schematic diagram of the base of this utility model.

[0017] In the diagram: 1. Main board; 101. Cable tie; 102. Connecting plate; 2. Hollow screw; 201. First threaded bolt; 202. Base; 203. First slide groove; 204. First connecting block; 205. Second slide groove; 206. Second connecting block; 207. Navigation tracking device; 3. Second threaded bolt; 301. Third threaded bolt. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figures 1-3 A fixing device for an orthopedic navigation tracker includes a main board 1, a cable tie 101 snapped onto the top of the main board 1, a connecting plate 102 snapped onto the top of the main board 1, and further includes:

[0020] A hollow screw 2 is threadedly connected to the top of the main board 1, and the hollow screw 2 passes through the cable tie 101. A first threaded bolt 201 is threadedly connected to the top of the connecting plate 102, and the first threaded bolt 201 extends into the inner cavity of the hollow screw 2. A base 202 is fixedly connected to the top of the connecting plate 102.

[0021] It should be noted that: the cable tie 101 is used to bind the main body to the side wall of the bone shaft, and the cable tie 101 is passed through the bottom of the main body 1. At the same time, the cable tie 101 is tightened to fix the main body 1 to the side wall of the bone shaft. Then, the hollow screw 2 is used to pass through the cable tie 101 and fix the cable tie 101 to the top of the main body 1. Subsequently, the first threaded bolt 201 can be used to pass through the connecting plate 102 and extend into the inner cavity of the hollow screw 2, thereby fixing the base 202 at the top of the connecting plate 102. In summary, the screw does not need to be drilled into the bone shaft to achieve fixation, which has the effect of protecting the bone shaft.

[0022] Reference Figures 1-3 The top of the base 202 is provided with a first sliding groove 203, and a first connecting block 204 is slidably connected to the inner wall of the first sliding groove 203;

[0023] The top of the first connecting block 204 is provided with a second sliding groove 205, the inner wall of the second sliding groove 205 is slidably connected to a second connecting block 206, and the top of the second connecting block 206 is fixedly connected to a navigation tracking device 207.

[0024] It should be noted that the first slide 203 and the second slide 205 are perpendicular to each other. The position of the navigation tracer device 207 can be adjusted by sliding the first connecting block 204 in the inner cavity of the first slide 203. At the same time, the position of the navigation tracer device 207 can also be adjusted by the second connecting block 206 in the inner cavity of the second slide 205, which facilitates the subsequent use of the navigation tracer device 207.

[0025] Reference Figures 1-3 The top of the first connecting block 204 is threadedly connected to a second threaded bolt 3, which is used to fix the first connecting block 204.

[0026] The top of the second connecting block 206 is threadedly connected to a third threaded bolt 301, which is used to fix the second connecting block 206.

[0027] It should be noted that the second threaded bolt 3 is used to fix the first connecting block 204, and the third threaded bolt 301 is used to fix the second connecting block 206, thereby fixing the position of the navigation tracking device 207.

[0028] Operation method: Use cable tie 101 to bind the main body to the side wall of the bone shaft and pass through the bottom of the main body 1. At the same time, tighten the cable tie 101 to fix the main body 1 to the side wall of the bone shaft. Then, use hollow screw 2 to pass through the cable tie 101 and fix the cable tie 101 to the top of the main body 1. Then, the first threaded bolt 201 can be used to pass through the connecting plate 102 and extend into the inner cavity of the hollow screw 2, thereby fixing the base 202 at the top of the connecting plate 102. In summary, the screw does not need to be drilled into the bone shaft to achieve fixation, which has the effect of protecting the bone shaft.

[0029] The first slide 203 and the second slide 205 are perpendicular to each other. The position of the navigation tracer 207 can be adjusted by sliding the first connecting block 204 in the inner cavity of the first slide 203. At the same time, the position of the navigation tracer 207 can also be adjusted by the second connecting block 206 in the inner cavity of the second slide 205, which facilitates the subsequent use of the navigation tracer 207.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixation device for an orthopedic navigation tracker, comprising a main board (1), characterized in that: The motherboard (1) is secured with a cable tie (101) at its top, and a connecting plate (102) is also secured to the top of the motherboard (1). The system also includes: The motherboard (1) is threaded with a hollow screw (2) at the top, and the hollow screw (2) passes through the cable tie (101). The connecting plate (102) is threaded with a first threaded bolt (201) at the top, and the first threaded bolt (201) extends into the inner cavity of the hollow screw (2). The connecting plate (102) is fixedly connected with a base (202) at the top.

2. The fixation device for an orthopedic navigation tracker according to claim 1, characterized in that: The base (202) has a first groove (203) on its top, and a first connecting block (204) is slidably connected to the inner wall of the first groove (203).

3. The fixation device for an orthopedic navigation tracker according to claim 2, characterized in that: The first connecting block (204) has a second sliding groove (205) at its top, and a second connecting block (206) is slidably connected to the inner wall of the second sliding groove (205). A navigation tracking device (207) is fixedly connected to the top of the second connecting block (206).

4. The fixation device for an orthopedic navigation tracker according to claim 3, characterized in that: The top of the first connecting block (204) is threaded with a second threaded bolt (3), which is used to fix the first connecting block (204).

5. The fixation device for an orthopedic navigation tracker according to claim 4, characterized in that: The second connecting block (206) has a third threaded bolt (301) threadedly connected to its top, and the third threaded bolt (301) is used to fix the second connecting block (206).

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