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Artificial humeral head replacement

A humeral prosthesis and humeral head technology, applied in the field of medical prosthetics, can solve the problems of incompatibility between model size, anatomical characteristics and motor function requirements, high price, limited clinical effect, etc.

Active Publication Date: 2007-10-31
THE FIRST AFFILIATED HOSPITAL OF THIRD MILITARY MEDICAL UNIVERSITY OF PLA +1
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The main problems in the application of imported artificial shoulder joint prosthesis in my country: ①The imported prosthesis currently used in China is the second and third generation prosthesis technology, which is a product that has been eliminated from abroad, and the clinical effect is very limited; for example, the patent number is CN03127649. 0 Chinese patents, which belong to the first and second generation technologies; ②The size and design model of imported artificial humerus prosthesis are not suitable for Chinese people’s physique, anatomical characteristics and motor function requirements; ③The price is very expensive , most patients cannot afford

Method used

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Embodiment Construction

[0025] In the physiological anatomy of normal people, there is an angle between the axis of the humerus shaft and the axis of the neck of the humerus, which is called the neck-shaft angle. In different people, the neck-shaft angle of the humerus is different, and the distribution range of the neck-shaft angle of different races is also the same. different. For patients who need shoulder joint replacement, the ideal method is to simulate a personalized prosthesis according to the patient's own anatomical structure, but the cost is very high, and patients with ordinary economic conditions cannot afford it. Therefore, a continuously variable design is realized at the joint of the handle and the head of the prosthesis. The variable range can just match the range of neck-shaft angle angle distribution of normal people, so one prosthesis can be suitable for a group of people. Body replacement surgery, which saves materials and reduces costs, and patients with average economic condit...

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Abstract

The invention discloses an artificial head of humerus prosthesis, which is characterized by the following: comprising humerus prosthesis head, humerus prosthesis handle and joint part; fixing the humerus prosthesis head, handle and joint part as a whole; arranging the joint part on the up end of the handle part; rotating with the handle of the humerus prosthesis handle; assuring angle; locking through locked structure; bonding with the joint part and humerus prosthesis handle with gear mode; setting the locked device as metallic chock; adjusting collodiaphysial angle, front-and-after angle of twist and eccentricity according to need. This invention is fit for Chinese soma and dissect characteristics.

Description

technical field [0001] The invention relates to a medical prosthesis, in particular to an artificial humeral head prosthesis for orthopedics. Background technique [0002] The design and development of modern artificial humeral head prosthesis has experienced the development of four generations of prosthesis technology. The first generation is the integral type. It was designed and advocated by Neer in 1951. The main product is Neer I type. The first generation of prosthesis can only provide a single fixed prosthesis stem, and the direction of the humeral head is fixed. , the individual adaptability is extremely limited; the clinical effect is poor, and surgery is difficult to meet the treatment needs of patients, so no one continues to use it at present. [0003] The second generation is a modeled prosthesis, the head and handle are separated, with modeled heads and handles of different sizes to meet the needs of individual patients. The representative is the Neer type II,...

Claims

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Application Information

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IPC IPC(8): A61F2/40
CPCA61F2002/30001A61F2/40
Inventor 唐康来龚继承彭晓东
Owner THE FIRST AFFILIATED HOSPITAL OF THIRD MILITARY MEDICAL UNIVERSITY OF PLA
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