Artificial sacrum prosthesis

An artificial prosthesis, sacrum technology, applied in the direction of prosthesis, bone implants, internal bone synthesis, etc., can solve the problems of rejection and poor fusion, fracture, poor treatment effect, etc.

Active Publication Date: 2015-02-04
BEIJING AKEC MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a sacral artificial prosthesis to solve the problems of poor treatment effects such as postoperative loosening, fracture, rejection and poor fusion in the existing screw-rod reconstruction or bone graft reconstruction

Method used

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  • Artificial sacrum prosthesis
  • Artificial sacrum prosthesis
  • Artificial sacrum prosthesis

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Embodiment Construction

[0025] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0026] figure 1 A sacral prosthesis according to an embodiment of the present invention is shown in . The sacral artificial prosthesis is made according to the actual three-dimensional data of the patient's physiological sacrum, which is consistent with the patient's original physiological sacrum in size. The three-dimensional actual data of the patient's sacrum can be obtained by CT / MRI / UCT and other tomographic scanning methods and other feasible methods such as X-ray The shape and size of the sacral artificial prosthesis meet the requirements of space occupation and articular surface matching required by the correction and reconstruction plan. The sacral artificial prosthesis comprises: a sacral artificial prosthesis main body 10, an upper artic...

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Abstract

Disclosed is a sacrum artificial prosthesis arranged between the lumbar vertebrae, left ilium and right ilium to replace the physiological sacrum. The sacrum artificial prosthesis comprises a prosthesis main body (10), with a superior joint fusion surface (20) set at the upper part of the prosthesis main body (10) for fitting to the inferior endplate of the lumbar vertebra; left and right auriform joint fusion surfaces (30) are set respectively at the two sides of the prosthesis main body (10) for fitting with the auriform surfaces of the left and right ilium. The main advantages of the sacrum artificial prosthesis are: the upper part and the two sides of the sacrum artificial prosthesis have joint fusion surfaces respectively fused and connected with the physiological lumbar vertebra and ilium to replace the physiological sacrum so as to facilitate the generation of bone cells, promote the fusion of bones and recover function of the sacrum, thereby achieving the purpose of rebuilding the stability of sacroiliac joints of the waist.

Description

technical field [0001] The invention relates to the field of orthopedic implants, in particular to a sacrum artificial prosthesis replacing the natural sacrum. Background technique [0002] The sacrum is an important link in the transition from the spine to the pelvis. It plays an extremely important role in supporting the spine, maintaining the stability of the pelvis, transmitting physiological loads from the upper part of the body, and bearing external weights. Sacral tumors account for a certain proportion of spinal tumors, and surgical resection is currently the main method for the treatment of sacral tumors. However, due to the special location of the sacrum, the operation is difficult, and because the operation usually partially or even completely destroys the lumbosacral and sacroiliac joints, how to restore and reconstruct the stable lumbosacral mechanical function after surgery has always been of great concern to the medical community. problem. The currently rout...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/28
CPCA61F2/4455A61B17/7055A61F2/44A61F2002/3092
Inventor 刘忠军
Owner BEIJING AKEC MEDICAL
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