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Supporting rod for femoral head necrosis

A femoral head necrosis and support rod technology, applied in the field of medical devices, can solve the problems of not being able to meet the requirements of patients, inability to cut, and inconvenient removal, etc., and achieve the effects of increasing the probability of bone ingrowth, increasing the surface area, and reducing production costs

Inactive Publication Date: 2017-09-19
倪晓辉
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AI Technical Summary

Problems solved by technology

[0002] With the development of medical services, patients have higher and higher requirements for medical aids. In order to increase the porosity and promote the growth of the femoral head after the femoral head necrosis operation, the patient needs to use support rods to support the femoral head. Originally The support rods used are all made of tantalum metal, which has high production cost and high hardness, cannot be cut, and is inconvenient to take out. At the same time, the existing support rod bone growth is not ideal. Once it slips during the support process, it needs to be redone. Surgery has potential safety hazards and cannot meet the requirements of patients

Method used

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  • Supporting rod for femoral head necrosis
  • Supporting rod for femoral head necrosis

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Embodiment Construction

[0011] The specific content of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0012] Such as figure 1 , figure 2 As shown, the support rod for femoral head necrosis includes: a polyetheretherketone support rod body 1, a threaded connection section 2 is arranged at the lower end of the polyether ether ketone support rod body 1, and a threaded connection section 2 is arranged on the polyetheretherketone support rod body A mulberry-shaped support head 4 is provided on the upper end of the PEEK support rod body 1, and a bone trabecularization coating 6 is provided on the surface of the PEEK support rod body 1.

[0013] Such as figure 1 As shown, in order to facilitate the prompting of the penetration depth of the top end of the femoral head necrosis support rod during use, a small section of metal wire 5 that can be developed under X-rays is provided inside the mulberry-shaped support head 4 .

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Abstract

The invention discloses a support rod for femoral head necrosis which is easy to take out. The upper end of the support rod body is provided with a mulberry-shaped support head, and a bone trabecularization coating is provided on the surface of the PEEK support rod body. The advantages are: Polyether ether ketone polymer material is used instead of tantalum metal for production, which can not only achieve the clinical curative effect similar to tantalum metal, but also greatly reduce the production cost; its elastic modulus is close to that of bone tissue, and it can be cut directly when it is taken out. It is easy to take out; the support head adopts a mulberry shape, which is close to the inner surface shape of the femoral head necrosis area, and increases the surface area in contact with the trabecular bone; the trabecularized coating on the entire surface of the support rod can greatly increase the probability of bone ingrowth, To achieve the purpose of disease treatment.

Description

technical field [0001] The invention relates to a medical device, in particular to a support rod for femoral head necrosis. Background technique [0002] With the development of medical services, patients have higher and higher requirements for medical aids. In order to increase the porosity and promote the growth of the femoral head after the femoral head necrosis operation, the patient needs to use support rods to support the femoral head. Originally The support rods used are all made of tantalum metal, which has high production cost and high hardness, cannot be cut, and is inconvenient to take out. At the same time, the existing support rod bone growth is not ideal. Once it slips during the support process, it needs to be redone. Surgery has potential safety hazards and cannot meet the requirements of patients. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a support rod for femoral head necrosis which is ea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/74
CPCA61B17/74A61B2017/00831
Inventor 倪晓辉
Owner 倪晓辉
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