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Toe joint prosthesis

A toe joint and prosthesis technology, applied in the field of toe joint prosthesis, can solve the problems of inability to reconstruct the attachment point and joint capsule more effectively, unable to ensure the stability of the toe joint prosthesis, and unfavorable for patient rehabilitation, and achieve good joint stability. performance, improve recovery effect, and facilitate postoperative recovery

Active Publication Date: 2019-03-19
BEIJING CHUNLIZHENGDA MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, on the one hand, the existing toe joint prosthesis cannot effectively fix the first medullary needle prosthesis and the second medullary needle prosthesis to the osteotomy segment of the affected area; on the other hand, it cannot reconstruct the toe joint prosthesis more effectively The attachment point of the nearby muscles and the joint capsule, which cannot guarantee the stability of the toe joint prosthesis after implantation, which is not conducive to the postoperative rehabilitation of the patient, and may even easily cause secondary injury to the patient

Method used

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Examples

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Embodiment Construction

[0029] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.

[0030] figure 1 The structure of the toe joint prosthesis 100 according to the present invention is shown. Such as figure 1 As shown, the toe joint prosthesis includes: a first pin prosthesis 1 and a second pin prosthesis 2 hinged to the first pin prosthesis 1, and the first pin prosthesis 1 includes The first medullary needle 11 inside and the second medullary needle 12 connected with the first medullary needle 11 and located outside the medullary cavity, the second medullary needle 12 is hinged with the second medullary needle prosthesis 2 . Wherein, the outer surface of the first medullary needle 11 and / or th...

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Abstract

The invention relates to the technical field of medical prostheses and discloses a toe joint prosthesis. The toe joint prosthesis comprises a first intramedullary nail prosthesis and a second intramedullary nail prosthesis hinged to the first intramedullary nail prothesis; the first intramedullary nail prothesis comprises a first intramedullary nail arranged inside a medullary cavity, and a secondintramedullary nail connected with the first intermedullary nail and arranged outside the medullary cavity, wherein the second intermedullary nail is hinged to the second intermedullary nail prothesis; the first intermedullary nail and / or the second intermedullary nail and / or the outer surface of the second intermedullary nail prosthesis are provided with three-dimensional porous structure layers. The outer surface of the toe joint prosthesis can acquire good bone ingrowth capacity and good bone creeping capacity, so that the toe joint prosthesis can be more stable in fixation.

Description

technical field [0001] The invention relates to the technical field of medical prosthesis, in particular to a toe joint prosthesis. Background technique [0002] Toe joint prosthesis is a surgical implant used in toe joint replacement to replace the toe joint of human patients. When the toe joint of the human body needs to be repaired due to tumors or comminuted fractures, it is often easy to cause serious bone defects in the toe joint. Severe bone defects not only make the toe joint osteotomy position force bearing capacity worse, but also easily The attachment point defect of the muscles at the toe joint or the damage of the joint capsule are caused. At this time, it is necessary to select a suitable toe joint prosthesis to replace the patient's toe joint. [0003] The existing toe joint prosthesis is mainly composed of the first pin prosthesis and the second pin prosthesis, and the first pin prosthesis and the second pin prosthesis are hinged to realize the movement of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/42
CPCA61F2/4225A61F2002/30772A61F2002/4233A61F2250/0023A61F2/30767A61F2/30942A61F2002/30011A61F2002/30322A61F2002/30331A61F2002/30354A61F2002/30405A61F2002/30461A61F2002/30471A61F2002/30784A61F2002/3092A61F2002/3093A61F2002/30943A61F2002/30948A61F2002/30971A61F2002/30985A61F2002/4251A61F2/4241A61F2002/30624A61F2002/3065A61F2002/30654A61F2002/30769A61F2002/30649
Inventor 史春宝解凤宝许奎雪史文超于跃卢小强董泽宇牛建明孙长英
Owner BEIJING CHUNLIZHENGDA MEDICAL INSTR
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