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Individualized artificial half joint substitute and its preparing method

A technology of articular surfaces and substitutes, applied in the direction of joint implants, joint implants, etc., can solve the problems of difficult to solve individual replacement, damage to limb development ability, unfavorable rehabilitation and functional recovery, etc., which is beneficial to postoperative rehabilitation. and functional recovery, solving articular cartilage necrosis, and good effect of physiological reconstruction

Inactive Publication Date: 2006-08-02
XI AN JIAOTONG UNIV +1
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Problems solved by technology

[0002] There are two methods of artificial joint substitutes used in the prior art: one method is bilateral total replacement of artificial joints, which removes the undamaged articular surface on the opposite side, increases the scope of surgery, and is not conducive to postoperative rehabilitation and function Recovery, especially for young patients in the developing period, the damage to the epiphysis caused by osteotomy will destroy the developmental ability of the limbs; another method is to use allogeneic bone transplantation, which has articular surface necrosis and poor matching of the articular surface after operation. Problems affecting the recovery of joint function
The above methods are difficult to solve individual replacement

Method used

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  • Individualized artificial half joint substitute and its preparing method
  • Individualized artificial half joint substitute and its preparing method
  • Individualized artificial half joint substitute and its preparing method

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Embodiment Construction

[0020] The accompanying drawing is one of the embodiments of the present invention.

[0021] Below in conjunction with accompanying drawing, content of the present invention will be further described:

[0022] refer to figure 1 As shown, the flow chart is the preparation method of the present invention. Firstly, the patient’s healthy lateral joint is used for CT scanning to obtain image data of bone tissue, and then the image data is processed with mirror symmetry by using image processing technology. Segment the image based on the difference in gray level, extract the contour data, and obtain the articular cartilage and bone contour data, and then input the obtained bone contour data into reverse software or CAD software for three-dimensional reconstruction of the articular bone surface, which also includes the following steps:

[0023] 1. Design biological connectors and intramedullary nail connection posts on the articular bone surface;

[0024] 2. According to the design...

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Abstract

A substitute of personalized artificial semi-facies articularis is composed of semi-articulation body, bioconnector, connecting pile for intramedullary needle, and locator for operation. An artificial articulation is prepared through CT scanning to articulation of patient, image processing, 3D reconfigurating by software, designing semi-articulation body, designing said bioconnector, connecting pile and locating die, fast shaping to obtain prototype, precise fusion casting, and assembling.

Description

1. Technical field [0001] The invention relates to bone and joint repair in the medical industry. 2. Background technology [0002] There are two methods of artificial joint substitutes used in the prior art: one method is bilateral total replacement of artificial joints, which removes the undamaged articular surface on the opposite side, increases the scope of surgery, and is not conducive to postoperative rehabilitation and function Recovery, especially for young patients in the developing period, the damage to the epiphysis caused by osteotomy will destroy the developmental ability of the limbs; another method is to use allogeneic bone transplantation, which has articular surface necrosis and poor matching of the articular surface after operation. Thereby affecting the recovery of joint function. The above methods are difficult to solve individual replacement. 3. Contents of the invention [0003] The invention object of the present invention is to provide a kind of u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/30
Inventor 李涤尘王臻孙明林卢秉恒张虎腾勇
Owner XI AN JIAOTONG UNIV
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