Acetabular cup driving tool under navigation system

Abstract

The utility model relates to the technical field of medical instruments, in particular to an acetabular cup driving tool under a navigation system, which comprises an acetabular cup connecting rod, one end of the acetabular cup connecting rod is connected with an operating handle, the other end of the acetabular cup connecting rod is connected with an acetabular cup main body, the side wall of the acetabular cup connecting rod is connected with a navigator connecting seat, and the navigator connecting seat is connected with a navigator. The end face of the navigator connecting base is connected with an adapter rod body, the bottom of the adapter rod body is provided with a longitudinal positioning column corresponding to the navigator connecting base, and the side wall of the adapter rod body is connected with a rotating connecting shaft. The navigator connecting seat, the adapter rod main body, the tracking bracket and the reflective ball are arranged in the acetabular cup driving tool under the navigation system, and all the parts interact with one another, so that the driving position of the acetabular cup can be more accurately determined in an operation, and the device is more convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a acetabular cup insertion tool under a navigation system. Background Technology

[0002] Patients with severe hip arthritis or hip dysplasia typically require total hip replacement surgery to restore comfortable walking function. This type of surgery can be performed using navigation-guided hip replacement surgery. This typically involves installing a tracker on the hip replacement tool. The tracker, in conjunction with a navigation camera, positions the hip replacement tool, allowing for real-time display of its location.

[0003] Compared to traditional manual installation, a navigation system can obtain accurate femoral-tibioshaft angle and acetabular anteversion angle, resulting in more precise installation of the acetabular cup, improved surgical stability, reduced risk of prosthesis dislocation, and thus lower probability of short-term revision surgery. To address these issues, a navigation-guided acetabular cup insertion tool is needed. Utility Model Content

[0004] The purpose of this invention is to provide a acetabular cup insertion tool for a navigation system, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] An acetabular cup insertion tool under a navigation system includes an acetabular cup connecting rod. One end of the acetabular cup connecting rod is connected to an operating handle, and the other end is connected to an acetabular cup body. A navigator connecting seat is connected to the side wall of the acetabular cup connecting rod. An adapter rod body is connected to the end face of the navigator connecting seat. A longitudinal positioning post is provided at the bottom of the adapter rod body and corresponding to the navigator connecting seat. A rotating shaft is connected to the side wall of the adapter rod body. A rotating button is connected to the side wall of the rotating shaft. A transverse positioning post is provided on the side wall of the rotating button. A return spring is connected between the rotating button and the adapter rod body. A circular positioning post and a flat positioning post are provided on the end face of the adapter rod body. A tracking bracket is provided on the end face of the adapter rod body and corresponding to the circular and flat positioning posts. Multiple sets of reflective balls are connected to the end face of the tracking bracket.

[0007] As a preferred embodiment of this utility model, the connection between the acetabular cup connecting rod and the acetabular cup body is a threaded connection. A positioning hole is provided on the end face of the navigator connecting seat, corresponding to the longitudinal positioning post. The longitudinal positioning post and the positioning hole are fitted with a clearance fit. The longitudinal positioning post and the positioning hole adopt a Morse taper and a Morse taper hole structure.

[0008] As a preferred embodiment of this utility model, a connecting hole is provided on the side wall of the rotary button and corresponding to the rotary connecting shaft, wherein the connection between the rotary connecting shaft and the connecting hole is a rotary connection, and multiple sets of anti-slip textures are provided on the side wall of the rotary button.

[0009] As a preferred embodiment of this utility model, a positioning hole is provided on the side wall of the navigator connector, corresponding to the transverse positioning post. The transverse positioning post and the positioning hole are fitted with a clearance fit, and the transverse positioning post and the positioning hole adopt a Morse cone and Morse cone hole structure.

[0010] As a preferred embodiment of this utility model, a connecting hole is provided on the side wall of the adapter rod body, corresponding to the reset spring, wherein the reset spring and the connecting hole are fitted with a clearance fit.

[0011] As a preferred embodiment of this utility model, the tracking bracket is provided with positioning holes corresponding to the circular positioning post and the flat positioning post, wherein the circular positioning post and the flat positioning post are fitted with the positioning holes in a clearance fit.

[0012] As a preferred embodiment of this utility model, the tracking bracket and the main body of the adapter rod are connected by bolts on the end faces of the circular positioning post and the flat positioning post.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] In this invention, a navigator connector, adapter rod body, tracking bracket, and reflective ball are incorporated into the acetabular cup insertion tool under the navigation system. By utilizing the interaction between these components, the navigator connector facilitates the installation of the adapter rod body, tracking bracket, and reflective ball during operation. This allows for more precise determination of the acetabular cup insertion position during surgery, making the device more convenient to use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the isotropic structure of this utility model;

[0016] Figure 2 For this utility model Figure 1 A top-view structural diagram;

[0017] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-sectional structure;

[0018] Figure 4 This is an exploded structural diagram of the tracking bracket of this utility model;

[0019] Figure 5This is an exploded structural diagram of the main body of the adapter rod of this utility model;

[0020] Figure 6 This is an exploded structural diagram of the acetabular cup body of this utility model.

[0021] In the diagram: 1. Acetabular cup connecting rod; 2. Operating handle; 3. Acetabular cup body; 4. Navigator connecting seat; 5. Adapter rod body; 6. Longitudinal positioning post; 7. Rotating shaft; 8. Rotating button; 9. Lateral positioning post; 10. Return spring; 11. Circular positioning post; 12. Flat positioning post; 13. Tracking bracket; 14. Reflector ball. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] For an example, please refer to... Figure 1-6 This utility model provides a technical solution:

[0027] An acetabular cup insertion tool under a navigation system includes an acetabular cup connecting rod 1. One end of the acetabular cup connecting rod 1 is connected to an operating handle 2, and the other end of the acetabular cup connecting rod 1 is connected to an acetabular cup body 3. A navigator connecting seat 4 is connected to the side wall of the acetabular cup connecting rod 1. An adapter rod body 5 is connected to the end face of the navigator connecting seat 4. A longitudinal positioning post 6 is provided at the bottom of the adapter rod body 5 and corresponding to the navigator connecting seat 4. A rotating shaft 7 is connected to the side wall of the adapter rod body 5. A rotating button 8 is connected to the side wall of the rotating shaft 7. A transverse positioning post 9 is provided on the side wall of the rotating button 8. A return spring 10 is connected between the rotating button 8 and the adapter rod body 5. A circular positioning post 11 and a flat positioning post 12 are provided on the end face of the adapter rod body 5. A tracking bracket 13 is provided on the end face of the adapter rod body 5 and corresponding to the circular positioning post 11 and the flat positioning post 12. Multiple sets of reflective balls 14 are connected to the end face of the tracking bracket 13.

[0028] In this embodiment, reference Figure 1 , Figure 2 , Figure 5 and Figure 6 Positioning holes are provided on the tracking bracket 13, corresponding to the circular positioning post 11 and the flat positioning post 12. The circular positioning post 11 and the flat positioning post 12 are fitted with the positioning holes in a clearance fit. The tracking bracket 13 and the adapter rod body 5 are connected to each other by bolts on the end faces of the circular positioning post 11 and the flat positioning post 12. Positioning holes are provided on the end face of the navigator connecting seat 4, corresponding to the longitudinal positioning post 6. The longitudinal positioning post 6 is fitted with the positioning holes in a clearance fit. The longitudinal positioning post 6 and the positioning holes adopt a Morse taper and Morse taper hole structure to connect the acetabular cup connecting rod 1. The acetabular cup connecting rod 1 and the adapter rod body 5 are connected to each other. A connecting hole is provided on the side wall of the rotary button 8, corresponding to the rotary coupling 7. The rotary coupling 7 is connected to the connecting hole by rotation. Multiple anti-slip textures are provided on the side wall of the rotary button 8. A positioning hole is provided on the side wall of the navigator connector 4, corresponding to the transverse positioning post 9. The transverse positioning post 9 and the positioning hole are fitted with a clearance fit. The transverse positioning post 9 and the positioning hole adopt a Morse cone and Morse cone hole structure. A connecting hole is provided on the side wall of the adapter rod body 5, corresponding to the return spring 10. The transverse positioning post 9 is engaged in the fixing groove of the navigator connector 4 under the condition that the return spring 10 and the connecting hole are fitted with a clearance fit, thereby completing the fixation between the mortis cup connecting rod 1 and the adapter rod body 5.

[0029] Furthermore, the connection between the acetabular cup connecting rod 1 and the acetabular cup body 3 is a threaded connection, which facilitates the connection between the acetabular cup connecting rod 1 and the acetabular cup body 3;

[0030] Furthermore, a positioning hole is provided on the end face of the navigator connector 4, corresponding to the longitudinal positioning post 6. The longitudinal positioning post 6 and the positioning hole are fitted with a clearance fit. The longitudinal positioning post 6 and the positioning hole adopt a Morse cone and Morse cone hole structure to facilitate the positioning between the mortise cup connecting rod 1 and the adapter rod body 5.

[0031] Furthermore, a connecting hole is provided on the side wall of the rotary button 8, corresponding to the rotary coupling 7. The rotary coupling 7 is connected to the connecting hole by rotation. Multiple anti-slip textures are provided on the side wall of the rotary button 8. A positioning hole is provided on the side wall of the navigator connector 4, corresponding to the transverse positioning post 9. The transverse positioning post 9 and the positioning hole are fitted with a clearance fit. The transverse positioning post 9 and the positioning hole adopt a Morse cone and Morse cone hole structure. A connecting hole is provided on the side wall of the adapter rod body 5, corresponding to the return spring 10. The return spring 10 and the connecting hole are fitted with a clearance fit, which facilitates the installation of the navigator connector 4 and the adapter rod body 5.

[0032] Furthermore, the tracking bracket 13 is provided with positioning holes corresponding to the circular positioning post 11 and the flat positioning post 12. The circular positioning post 11 and the flat positioning post 12 are fitted with the positioning holes in a clearance fit. The tracking bracket 13 and the adapter rod body 5 are connected by bolts on the end faces of the circular positioning post 11 and the flat positioning post 12, which facilitates the connection between the tracking bracket 13 and the adapter rod body 5.

[0033] The working process of this utility model is as follows: When using the acetabular cup insertion tool under the navigation system, positioning holes are opened on the tracking bracket 13 corresponding to the circular positioning post 11 and the flat positioning post 12. The circular positioning post 11 and the flat positioning post 12 are fitted with the positioning holes in a clearance fit. The tracking bracket 13 and the adapter rod body 5 are connected to each other by bolts on the end faces of the circular positioning post 11 and the flat positioning post 12. Positioning holes are opened on the end face of the navigator connecting seat 4 corresponding to the longitudinal positioning post 6. The longitudinal positioning post 6 is fitted with the positioning holes in a clearance fit. The longitudinal positioning post 6 and the positioning holes adopt Morse taper and Morse taper hole structures to connect the acetabular cup connecting rod 1. The acetabular cup connecting rod 1 and the adapter rod body 5 are connected to each other. Connecting holes are opened on the side wall of the rotating button 8 corresponding to the rotating shaft 7. The rotating shaft 7 is connected to the connecting hole by a rotating connection. The side wall of the rotating button 8 is provided with multiple anti-slip textures. The side wall of the navigator connecting seat 4 is provided with a positioning hole corresponding to the transverse positioning post 9. The transverse positioning post 9 and the positioning hole are fitted with a clearance fit. The transverse positioning post 9 and the positioning hole adopt a Morse cone and Morse cone hole structure. The side wall of the adapter rod body 5 is provided with a connecting hole corresponding to the return spring 10. Under the condition that the return spring 10 and the connecting hole are fitted with a clearance fit, the transverse positioning post 9 is snapped into the fixing groove of the navigator connecting seat 4, thereby completing the fixation between the acetabular cup connecting rod 1 and the adapter rod body 5. Under the condition that the connection between the acetabular cup connecting rod 1 and the acetabular cup body 3 is a threaded connection, the acetabular cup connecting rod 1 and the acetabular cup body 3 are connected. During surgery, the acetabular cup can be quickly inserted directly under the action of the reflective ball 14.

[0034] 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 acetabular cup insertion tool under a navigation system, comprising an acetabular cup connecting rod (1), characterized in that: One end of the acetabular cup connecting rod (1) is connected to an operating handle (2), and the other end of the acetabular cup connecting rod (1) is connected to the acetabular cup body (3). A navigator connecting seat (4) is connected to the side wall of the acetabular cup connecting rod (1). A converter rod body (5) is connected to the end face of the navigator connecting seat (4). A longitudinal positioning post (6) is provided at the bottom of the converter rod body (5) and corresponding to the navigator connecting seat (4). A rotating shaft (7) is connected to the side wall of the converter rod body (5). A rotary button (8) is connected, and a horizontal positioning post (9) is provided on the side wall of the rotary button (8). A reset spring (10) is connected between the rotary button (8) and the adapter rod body (5). A circular positioning post (11) and a flat positioning post (12) are provided on the end face of the adapter rod body (5). A tracking bracket (13) is provided on the end face of the adapter rod body (5) and corresponding to the circular positioning post (11) and the flat positioning post (12). Multiple sets of reflective balls (14) are connected to the end face of the tracking bracket (13).

2. The acetabular cup insertion tool under a navigation system according to claim 1, characterized in that: The connection between the acetabular cup connecting rod (1) and the acetabular cup body (3) is a threaded connection. The end face of the navigator connecting seat (4) is provided with a positioning hole corresponding to the longitudinal positioning post (6). The longitudinal positioning post (6) and the positioning hole are fitted with a clearance fit. The longitudinal positioning post (6) and the positioning hole adopt a Morse cone and Morse cone hole structure.

3. The acetabular cup insertion tool under a navigation system according to claim 1, characterized in that: The rotating button (8) has a connecting hole on its side wall corresponding to the rotating shaft (7). The rotating shaft (7) and the connecting hole are connected by a rotating connection. The rotating button (8) has multiple anti-slip textures on its side wall.

4. The acetabular cup insertion tool under a navigation system according to claim 1, characterized in that: The navigator connector (4) has a positioning hole on its side wall corresponding to the transverse positioning post (9). The transverse positioning post (9) and the positioning hole are fitted with a clearance fit. The transverse positioning post (9) and the positioning hole adopt a Morse cone and Morse cone hole structure.

5. The acetabular cup insertion tool under a navigation system according to claim 1, characterized in that: The adapter rod body (5) has a connecting hole on its side wall corresponding to the reset spring (10), wherein the reset spring (10) and the connecting hole are fitted with a clearance fit.

6. The acetabular cup insertion tool under a navigation system according to claim 1, characterized in that: The tracking bracket (13) has positioning holes corresponding to the circular positioning post (11) and the flat positioning post (12), wherein the circular positioning post (11) and the flat positioning post (12) are fitted with the positioning holes in a clearance fit.

7. The acetabular cup insertion tool under a navigation system according to claim 1, characterized in that: The tracking bracket (13) and the adapter rod body (5) are connected to each other by bolts on the end faces of the circular positioning post (11) and the flat positioning post (12).

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