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Internal support device for treating femoral head necrosis

A technology of femoral head necrosis and support device, which is applied to the femoral head, internal fixator, fixator and other directions, can solve the problems that the support area cannot be effectively expanded, the collapse of the femoral head cannot be effectively prevented, and the bone destruction of the femoral head and neck can be achieved. The effect of speeding up lesion repair, preventing collapse and restoring mechanical properties

Inactive Publication Date: 2008-06-18
WEST CHINA HOSPITAL SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the femoral head supporter in the prior art, the purpose of the present invention is to provide a new concept of a femoral head supporter for treating femoral head necrosis, so as to solve the problem of the femoral head supporter implantation in the prior art. After being inserted into the femoral head, the support area cannot be effectively expanded, and the mechanical properties are poor. If it has a large enough support area, it will cause great damage to the bone quality of the femoral head and neck, and cannot effectively prevent the femoral head from collapsing, affecting the femoral head, The mechanical properties of neck bones are likely to cause femoral head and neck fractures and other problems

Method used

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  • Internal support device for treating femoral head necrosis
  • Internal support device for treating femoral head necrosis
  • Internal support device for treating femoral head necrosis

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Embodiment

[0023] The specific structure of the femoral head internal support is as attached figure 1 , attached figure 2 , attached image 3 , attached Figure 4 And shown in accompanying drawing 5. The inner supporter of the femoral head is composed of a supporter body, a supporting part and a manipulation mechanism. Said supporter body is a cylindrical body 2 designed with an end 1 for installing support components. The body of the support is a cavity structure, the inner cavity of the cylinder and the end cavity are connected through a throat 3, the throat is processed with transmission threads, and several holes are designed on the wall of the cylinder to promote the ossification of the bone tissue filler in the cavity. Circulation hole 4. The said supporting part is composed of 5 evenly arranged arc-shaped blades 5, and each blade is installed between the positioning support grooves at the upper end of the cylinder body through the hinge shaft to rotate upwards, and the non-u...

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Abstract

The present invention discloses an internal supporter of femoral head for curing necrosis of femoral head. Said internal supporter mainly is formed from supporter body, supporting component mounted on the supporter body and operation mechanism. Said invention also provides the concrete structure of said supporter and its mounting mode, and said internal supporter can greatly raise cure rate for curing necrosis of femoral head.

Description

1. Technical field [0001] The invention relates to an implant instrument for treating necrosis of the femoral head, in particular to an implant implanted in the femoral head for treating necrosis of the femoral head. 2. Background technology [0002] Femoral head necrosis occurs mostly in young and middle-aged patients, and its etiology and pathogenesis are not yet fully understood. In the treatment of femoral head necrosis, most scholars currently believe that core decompression has a better therapeutic effect on the treatment of femoral head necrosis. The specific method of treating necrosis of the femoral head by core decompression is to drill a core channel at the femoral head through surgery, decompress the core, remove necrotic bone tissue, and then implant autologous or allogeneic bone tissue. [0003] In the treatment of necrosis of the femoral head by core decompression, the prior art usually uses nickel-titanium memory alloy tennis balls as the implanted allogenei...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/74A61F2/36A61B17/56
Inventor 康鹏德裴福兴王杰杨静沈彬党宏胜
Owner WEST CHINA HOSPITAL SICHUAN UNIV
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