Pet hip joint replacement device

Abstract

The utility model provides a pet hip joint replacement device, and relates to the technical field of pet medical equipment, in particular to the pet hip joint replacement device. The femoral component comprises a femoral stem, a connecting piece, a femoral head and an acetabular cup, a connector is arranged on one side of the connecting piece, an auxiliary support is installed on the connector through an adjusting screw, and the auxiliary support is fixed to the outer side of the femoral head in an attached mode. The auxiliary support is designed on one side of the femoral stem, so that sinking, rotating, loosening and shifting of the femoral stem can be effectively prevented, the stability of an operation is improved, and the postoperative recovery speed of a pet is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of pet medical equipment, in particular to a pet hip joint replacement device. Background Technique

[0002] With the improvement of people's living standards and the increasing attention to pet health, the pet medical industry has developed rapidly. Pet hip joint diseases, especially hip dysplasia, are one of the common skeletal problems in dogs. This disease can cause hip joint pain, stiffness and even mobility problems, seriously affecting the quality of life of pets. At present, the treatment methods for pet hip joint diseases mainly include two categories: conservative treatment and surgical treatment. Conservative treatment includes non-invasive methods such as drug treatment and physical therapy, while surgical treatment includes hip arthroplasty, total hip replacement, etc.

[0003] In surgical treatment, total hip replacement is a widely used method, which restores the mobility of pets by replacing the damaged hip joint. Existing pet hip joint replacement devices usually consist of a femoral stem, a connecting piece, a femoral head and an acetabular cup. However, these devices have some deficiencies in clinical application. For example, the femoral stem is prone to sinking, rotation or loosening, resulting in poor surgical results and slow recovery of pets.

[0004] Femoral stem sinking refers to the gradual downward movement of the femoral stem after implantation, resulting in changes in the position of the femoral head and affecting the normal function of the hip joint. Femoral stem rotation refers to the rotation of the femoral stem in the femoral medullary cavity, which destroys its stable combination with the femur. In addition, the femoral stem may also become loose or displaced due to insecure fixation. These problems will reduce the surgical success rate and may lead to secondary surgery.

[0005] In order to overcome the above problems, it is necessary to develop a new pet hip joint replacement device, which can improve the surgical success rate and ensure the rapid recovery of pets after surgery. Content of the Utility Model

[0006] The purpose of the utility model is to provide a pet hip joint replacement device, which can effectively prevent the femoral stem from sinking, rotating, loosening and displacing, and improve the stability of the surgery and the postoperative recovery speed of pets.

[0007] The utility model provides a pet hip joint replacement device, including a femoral stem, a connecting piece, a femoral head and an acetabular cup, characterized in that one side of the connecting piece is provided with an interface, and an auxiliary bracket is installed on the interface through an adjusting screw, and the auxiliary bracket is fixedly attached to the outer side of the femur.

[0008] Further, the femoral head includes an inner core and an outer shell. The outer shell wraps the inner core. One end of the inner core is fixedly installed on the connecting member, and the outer shell is rotatably connected to the acetabular cup in all directions. The inner core provides the main load-bearing structure, and the outer shell covers the outside of the inner core to provide a smooth contact surface.

[0009] A further description of the foregoing solution is that the position and angle of the auxiliary bracket are finely adjusted by changing the position of the adjusting screw.

[0010] Optionally, a plurality of fixing holes are provided on the auxiliary bracket to facilitate installation and fixation.

[0011] Compared with the prior art, the present utility model designs an auxiliary bracket on one side of the femoral stem, which can effectively prevent the femoral stem from sinking, rotating, loosening, and displacing, improving the stability of the operation and the postoperative recovery speed of the pet. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0013] Figure 1 It is the overall schematic diagram provided by the embodiment of the present utility model;

[0014] Figure 2 It is another overall schematic diagram provided by the embodiment of the present utility model;

[0015] Figure 3 It is the exploded schematic diagram provided by the embodiment of the present utility model.

[0016] Among them, the reference numerals in the drawings are as follows:

[0017] 1. Femoral stem; 2. Connecting member; 21. Interface; 22. Auxiliary bracket; 23. Adjusting screw; 3. Femoral head; 31. Inner core; 32. Outer shell; 4. Acetabular cup.

[0018] Through the above drawings, the clear embodiments of the present utility model have been shown, and there will be more detailed descriptions later. These drawings and text descriptions are not intended to limit the scope of the concept of the present utility model in any way, but to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Detailed Embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] 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 can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. On the contrary, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation manner. The terms "upper end", "lower end", "left side", "right side", "front end", "rear end" and similar expressions used herein refer to the positional relationship in the accompanying drawings.

[0021] To make the technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0022] Please refer to Figures 1 - 3 As shown, the present invention provides a pet hip joint replacement device, including a femoral stem 1, a connecting member 2, a femoral head 3 and an acetabular cup 4. It is characterized in that an interface 21 is provided on one side of the connecting member 2, and an auxiliary bracket 22 is installed on the interface 21 through an adjusting screw 23, and the auxiliary bracket 22 is fixedly attached to the outside of the femur.

[0023] The femoral stem 1 is used for implanting into the pet femur and has excellent biocompatibility and mechanical stability; the connecting member 2 is a component for connecting the femoral stem 1 and the femoral head 3 to ensure a stable connection between the two; the auxiliary bracket 22 prevents the femoral stem 1 from sinking, rotating, loosening and displacing; the adjusting screw 23 is used to finely adjust the position and angle of the auxiliary bracket 22 to ensure fitting with the femur. The femoral head 3 is used to simulate the shape and function of the pet's natural femoral head 3 and is used in cooperation with the acetabular cup 4.

[0024] As Figure 3As shown, the femoral head 3 includes an inner core 31 and an outer shell 32. The outer shell 32 wraps the inner core 31. One end of the inner core 31 is fixedly installed on the connecting member 2, and the outer shell 32 is rotatably connected to the acetabular cup 4 in all directions. The inner core 31 provides the main load-bearing structure, and the outer shell 32 covers the outside of the inner core 31 to provide a smooth contact surface and reduce friction. By changing the position of the adjusting screw 23, the position and angle of the auxiliary support 22 can be finely adjusted. In this embodiment, a number of fixing holes are provided on the auxiliary support 22 to facilitate installation and fixation. In this embodiment, the auxiliary support 22 is in a curved strip shape and fits the outer side of the femur.

[0025] In order to understand the disclosure of the present utility model more thoroughly and comprehensively, the principle thereof will be further explained below in combination with the usage mode.

[0026] During actual use, according to the size of the pet's femur, a suitable femoral stem 1 is selected. Then, the acetabular cup 4 is installed on the acetabular fossa, the femoral stem 1 is inserted into the femur, and the femoral head 3 is connected to the acetabular cup 4. Then, the auxiliary support 22 is installed on the connecting member 2 using the adjusting screw 23. The position and angle of the femoral stem 1 and the auxiliary support 22 are adjusted through the adjusting screw 23 to ensure precise cooperation with the femoral head 3, and the auxiliary support 22 is fixed to the femur to prevent sinking, rotation, loosening, and displacement of the femoral stem 1.

[0027] Those skilled in the art will readily conceive of other embodiments of the present utility model after considering the specification and practicing the present utility model. This application is intended to cover any variations, uses, or adaptations of the present utility model, which follow the general principles of the present utility model and include known common knowledge or conventional technical means in the technical field not disclosed in the present utility model. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present utility model are pointed out by the following claims.

[0028] It should be understood that the present utility model is not limited to the precise structure already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present utility model is only limited by the appended claims.

Claims

1. A pet hip replacement device, comprising a femoral stem (1), a connector (2), a femoral head (3) and an acetabular cup (4), characterized in that: An interface (21) is provided on one side of the connecting piece (2), and an auxiliary bracket (22) is mounted on the interface (21) via an adjusting screw (23), and the auxiliary bracket (22) is fitted and fixed to the outer side of the femur.

2. A pet hip replacement device according to claim 1, characterized in that: The femoral head (3) comprises an inner core (31) and an outer shell (32), wherein the outer shell (32) wraps the inner core (31), one end of the inner core (31) is fixedly mounted on a connecting member (2), and the outer shell (32) is universally rotatably connected to the acetabulum cup (4).

3. A pet hip replacement device according to claim 1, characterized in that: The position and angle of the auxiliary bracket (22) can be fine-tuned by changing the position of the adjusting screw (23).

4. A pet hip replacement device according to claim 1, characterized in that: The auxiliary bracket (22) is provided with a plurality of fixing holes.

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