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Artificial sacrum prosthesis

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

Active Publication Date: 2012-07-18
BEIJING AKEC MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

The invention provides an artificial sacrum prosthesis, which is arranged among lumbar vertebra and left and right ilia of a patient to replace physiological sacrum of the patient and comprises a prosthesis main body, an upper joint fusion surface and left and right ear-shaped joint fusion surfaces. The upper joint fusion surface is arranged on the upper portion of the prosthesis main body and used for being laminated with a lower end plate of the lumbar vertebra of the patient; the left and right ear-shaped joint fusion surfaces are respectively arranged on two sides of the prosthesis main body and used for being respectively laminated with ear-shaped surfaces of the left and right ilia of the patient. The artificial sacrum prosthesis has the main advantages that the joint fusion surfaces are arranged on the upper portion and the two sides of the artificial sacrum prosthesis, are respectively in connection fusion with the physiological lumbar vertebra and the physiological illia of the patient so as to replace the physiological sacrum of the patient, can facilitate osteocyte generation quickly, promotes bone fusion, plays functions of the sacrum, and achieves the purpose of rebuilding stabilization of joints among the lumbar vertebra, the ilia and the sacrum.

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 Applications(China)
IPC IPC(8): A61F2/28
CPCA61F2/4455A61B17/7055A61F2/44A61F2002/3092
Inventor 刘忠军
Owner BEIJING AKEC MEDICAL
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