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Universal artificial total elbow joint prosthesis

A general-purpose technology for elbow joints, applied in the direction of elbow joints, prostheses, knee joints, etc., can solve the problems of mechanical looseness of the whole elbow joint, failure of elbow joint reconstruction, etc., and achieve improvement of elbow joint function, return to normal length, The effect of reducing looseness

Pending Publication Date: 2021-12-17
PEOPLES HOSPITAL PEKING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the thinner medullary canal of the ulna and its curved curvature, the entire elbow joint is prone to mechanical loosening in the long-term, which leads to the failure of elbow joint reconstruction after tumor resection

Method used

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  • Universal artificial total elbow joint prosthesis
  • Universal artificial total elbow joint prosthesis

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Embodiment Construction

[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer" and the like are based on the orientation or positional relationship shown in the accompanying drawings, and are only for It is convenient to describe the present invention and simplify the description, but does not indicate or imply that the system or el...

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Abstract

The invention relates to a universal artificial total elbow joint prosthesis. The universal artificial total elbow joint prosthesis comprises a humerus handle with the upper end used for being inserted into a humerus marrow cavity and connected with the humerus marrow cavity in a fastened mode, a joint body part with the upper end connected with the humerus handle, and an ulna handle with the lower end used for being inserted into an ulna marrow cavity and connected with the ulna marrow cavity in a fastened mode, wherein the upper end of the ulna handle and the joint body part form a hinge joint through a hinge structure of a pure flexion and extension mechanism. The prosthesis can be widely applied to reconstruction of elbow joint trauma, degenerative joint diseases, rheumatoid arthritis, tumors and the like, the aim of limb structure recovery is achieved, meanwhile, the advantages of immediate stability, stress reduction and the like of the elbow joint are perfectly combined, and therefore the long-term elbow joint function of a patient is remarkably improved.

Description

technical field [0001] The invention relates to an artificial prosthesis, in particular to a general-purpose artificial total elbow joint prosthesis based on 3D printing technology, which belongs to the technical field of medical devices. Background technique [0002] Elbow bone tumors account for 1% of the incidence of bone tumors in the whole body. With the development of radiotherapy and chemotherapy technology, it is possible to locally resect the tumor and preserve the upper limbs. However, due to the denseness of important anatomical structures in the elbow, local excision can lead to instability and loss of function of the elbow-wrist-hand joint. Reconstruction of the elbow joint is required to stabilize the function after tumor resection around the elbow joint, but there are not many reconstruction methods to choose from. Before the advent of total elbow joints, there were only a few reconstructive methods available. Arthrodesis, resection and plastic surgery, and...

Claims

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Application Information

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IPC IPC(8): A61F2/38A61F2/30
CPCA61F2/3804A61F2/30771A61F2/30942A61F2002/30329A61F2002/30784A61F2002/30985A61F2002/3809A61F2002/3831A61F2002/3813
Inventor 郭卫
Owner PEOPLES HOSPITAL PEKING UNIV
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