Artificial joint capable of being stably connected
By setting barbs and grooves on the outer surface of the artificial joints, the self-growth of bones is used to form secondary fixation, the problem of artificial joint looseness is solved, and stable connection and long-term stability are achieved.
Patent Information
- Application Number
- CN202421127537.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-05-22
AI Technical Summary
In the prior art, artificial joints are prone to loosening after long-term use and cannot effectively and stably connect.
Design a artificial joint that can be firmly connected. By setting barbs and grooves on the outer surface of the installation body, the barbs and nails are used to engage with bones, and combine the self-growth of human bones to form secondary fixation, avoiding the use of bone cement joints.
It realizes a stable connection between artificial joints and bones, reduces the risk of loosening, and improves the stability of long-term use.
Smart Images
Figure CN223143638U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical equipment, in particular to an artificial joint which can be stably connected. Background Art
[0002] Joints are the hub of human movement. Due to trauma or disease, they may become "disabled". In this case, doctors often remove the "disabled" joints and replace them with artificial joints. Human joints are vital organs, while artificial joints are lifeless prostheses.
[0003] Artificial joint replacement is to remove the worn and damaged joint surface and implant an artificial joint like a brace to restore the normal smooth joint surface. In the existing technology, bone cement is often used to fix the bone and the artificial joint after the joint replacement is completed. However, artificial joints are different from human bones after all. Over time, artificial joints may still become loose. Therefore, we have introduced a new artificial joint that can be firmly connected. Utility Model Content
[0004] The main purpose of the utility model is to provide an artificial joint that can be stably connected, which can effectively solve the problems in the background technology.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A stably connected artificial joint comprises a mounting body, the upper end of which is fixedly connected to a shaft rod, the upper end of which is fixedly connected to a ball head, the outer surface of which is slidably connected to a shaft cap, and the upper outer surface of which is provided with six fixing holes.
[0007] Preferably, a plurality of barbed nails are fixedly connected to the left side and the right side of the outer surface of the mounting body, and a plurality of grooves are provided on the front part and the rear part of the outer surface of the mounting body.
[0008] Preferably, the plurality of grooves and the plurality of barbed nails are evenly distributed and do not contact each other.
[0009] Preferably, the mounting body, the shaft, the ball head and the plurality of barbed nails are an integrally formed structure.
[0010] Preferably, the mounting body, shaft rod, ball head, and shaft cap are all made of titanium alloy.
[0011] Preferably, the six fixing holes are distributed in an annular array at equal distances and do not contact each other.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] In the present utility model, a number of barbed nails are provided on both the left and right outer surfaces of the installation body. When the artificial joint is connected to the human bone, the installation body can be directly inserted into the bone section surface. The barbed nails on the outer surface of the installation body will engage with the bone substance, and there is no need to use bone cement for caulking, so it can be firmly fixed to the human bone. In subsequent use, the bone substance of the human bone continues to grow and grow into a number of grooves on the outer surface of the installation body, forming a secondary fixation for the artificial joint and preventing the artificial joint from loosening during long-term subsequent use. Brief Description of the Drawings
[0014] Figure 1 It is a schematic diagram of the overall structure of an artificial joint with stable connection according to the present utility model;
[0015] Figure 2 It is a schematic diagram of the disassembled overall structure of an artificial joint with stable connection according to the present utility model;
[0016] Figure 3 It is a schematic diagram of the overall structure of the shaft cap of an artificial joint with stable connection according to the present utility model;
[0017] Figure 4 It is a schematic diagram of the overall structure of the installation body of an artificial joint with stable connection according to the present utility model.
[0018] In the figure: 1. Installation body; 2. Shaft rod; 3. Ball head; 4. Shaft cap; 41. Fixing hole; 11. Groove; 12. Barbed nail. Specific Embodiment
[0019] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0021] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0022] Please refer to Figures 1-4 , the present utility model provides a technical solution:
[0023] An artificial joint capable of stable connection, including an installation body 1, a shaft rod 2 is fixedly connected to the upper end of the installation body 1, a ball head 3 is fixedly connected to the upper end of the shaft rod 2, a shaft cap 4 is slidably connected to the outer surface of the ball head 3, and six fixing holes 41 are opened in the upper part of the outer surface of the shaft cap 4.
[0024] In this embodiment, a plurality of barbs 12 are fixedly connected to both the left side and the right side of the outer surface of the installation body 1, and a plurality of grooves 11 are opened in both the front part and the rear part of the outer surface of the installation body 1. By providing a plurality of barbs 12 on both the left side and the right side of the outer surface of the installation body 1, when the artificial joint is connected to the human bone, the installation body 1 can be directly inserted into the bone cut surface, and the barbs 12 on the outer surface of the installation body 1 will be engaged with the bone substance, and there is no need to use bone cement for caulking, and it can be stably fixed to the human bone.
[0025] In this embodiment, the plurality of grooves 11 and the plurality of barbs 12 are evenly distributed and do not contact each other. The installation body 1, the shaft rod 2, the ball head 3 and the plurality of barbs 12 are of an integrally formed structure. The installation body 1, the shaft rod 2, the ball head 3 and the shaft cap 4 are all made of titanium alloy material. The six fixing holes 41 are evenly distributed in a circular array and do not contact each other. By providing a plurality of grooves 11 on the outer surface of the installation body 1, after the artificial joint is fixed to the human bone, during subsequent long-term use, the human bone can grow by itself and be connected to the plurality of grooves 11, making the fixation of the artificial joint more firm and preventing it from moving during subsequent use.
[0026] It should be noted that the present utility model is an artificial joint that can be stably connected. By providing a plurality of barbed nails 12 on both the left outer surface and the right outer surface of the installation body 1, when the artificial joint is connected to the human bone, the installation body 1 can be directly inserted into the bone section surface. The barbed nails 12 on the outer surface of the installation body 1 will engage with the bone substance, and there is no need to use bone cement for caulking, so that it can be stably fixed to the human bone. In subsequent use, the bone substance of the human bone continues to grow and grows into a plurality of grooves 11 on the outer surface of the installation body 1, forming a secondary fixation for the artificial joint and preventing the artificial joint from loosening during long-term subsequent use.
[0027] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. An artificial joint capable of stable connection, comprising a mounting body (1), characterized in that: The upper end of the mounting body (1) is fixedly connected to a shaft rod (2), the upper end of the shaft rod (2) is fixedly connected to a ball head (3), the outer surface of the ball head (3) is slidably connected to a shaft cap (4), and six fixing holes (41) are formed in the upper part of the outer surface of the shaft cap (4); A plurality of barbed nails (12) are fixedly connected to both the left side and the right side of the outer surface of the mounting body (1), and a plurality of grooves (11) are formed in both the front part and the rear part of the outer surface of the mounting body (1); The plurality of grooves (11) and the plurality of barbed nails (12) are evenly distributed at equal intervals and do not touch each other; The mounting body (1), the shaft rod (2), the ball head (3) and the plurality of barbed nails (12) are of an integrally formed structure; The six fixing holes (41) are evenly distributed in an annular array at equal intervals and do not touch each other.
2. The artificial joint capable of stable connection according to claim 1, wherein: The mounting body (1), the shaft rod (2), the ball head (3) and the shaft cap (4) are all made of titanium alloy material.