Memory fixed type bionic phalanx joint replacement part

A fixed and replacement technology, applied in the direction of ankle joints, joint implants, joint implants, etc., can solve the problems of cumbersome operation, achieve simple operation, reduce treatment and prognosis, and be beneficial to clinical application and promotion Effect

Pending Publication Date: 2022-04-12
李川
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  • Claims
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Problems solved by technology

However, there are also disadvantages that the operation is relatively cumbersome

Method used

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  • Memory fixed type bionic phalanx joint replacement part
  • Memory fixed type bionic phalanx joint replacement part
  • Memory fixed type bionic phalanx joint replacement part

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited in any way. Any transformation or replacement based on the teaching of the present invention belongs to the protection scope of the present invention.

[0016] as attached Figure 1~6 As shown, the memory-fixed bionic phalanx joint replacement part of the present invention is composed of a phalanx fixer body 1 and its functional components, including a phalanx mating surface 11, a phalanx internal support part 13 and a phalanx internal fixation tooth 14. , it is characterized in that the main view surface of the phalanx fixer body 1 is in the shape of "π", and the front end is provided with a phalanx mating surface 11 that cooperates with the metacarpal joint friction and pad 2, and the rear part of the phalanx fixer body 1 is symmetrically arranged A pair of phalanx inner support parts 13 that are abducted from each other; phalan...

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Abstract

The invention discloses a memory fixing type bionic phalanx joint replacement part which is composed of a phalanx fixing part body and functional parts of the phalanx fixing part body and comprises a phalanx matching face, a phalanx inner supporting part and phalanx inner fixing teeth. The main view surface of the phalanx fixing piece body is pi-shaped, the front end of the phalanx fixing piece body is provided with a phalanx matching surface matched with a metacarpal joint friction pad, and the rear part of the phalanx fixing piece body is symmetrically provided with a phalanx inner supporting part and phalanx inner fixing teeth; based on ergonomic structural design and Ni-Ti memory alloy manufacturing, the technical advantages of the ergonomic structural design and the Ni-Ti memory alloy are fully exerted, so that the bionic metacarpophalangeal joint replacement component is better in conformity and good in mechanical cooperation; the unique memory function brings about the unique continuous automatic pressurization function of the internal fixation instrument for the orthopedics department, the continuous cohesive force of the internal fixation instrument provides a good biomechanical condition for healing of an affected bone, and looseness caused by bone healing and human body movement is avoided. The device is simple in structure, easy and convenient to use and beneficial to clinical application and popularization.

Description

technical field [0001] The invention belongs to the technical field of orthopedic instruments, in particular to a memory-fixed bionic phalanx joint replacement part with reasonable structure and easy assembly. Background technique [0002] The hand is the most important labor organ, and the metacarpophalangeal joint is an important structure of the hand. In the course of daily production and life, it is unavoidable for people to suffer accidents that cause fractures of the metacarpal bones and phalanges, or due to diseases such as rheumatoids, the movement of the palms and knuckles is limited, and even the normal physiological functions are lost. For patients with metacarpophalangeal cartilage injury, joint stiffness and surgical release ineffective, or joint function cannot be restored, arthrodesis, toe-metatarsal joint free transplantation and artificial finger joint replacement can be selected for treatment. Arthrodesis is currently the most commonly used treatment with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/42A61F2/46
Inventor 李川郭民政唐志方徐永清徐昕明叶涛贺建林
Owner 李川
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