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Adhesive ball socket joint type artificial navicular bone

A ball-and-socket joint, adhesive technology, used in ankle joints, wrist joints, joint implants, etc., to achieve high degrees of freedom, enhance fixation stability, and avoid wear and tear.

Active Publication Date: 2020-12-29
THE AFFILIATED HOSPITAL OF QINGDAO UNIV
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is still a lack of implants and surgical methods suitable for reconstructing the original scaphoid function and preserving the space and mobility of the radiocarpal joint

Method used

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  • Adhesive ball socket joint type artificial navicular bone
  • Adhesive ball socket joint type artificial navicular bone

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Embodiment Construction

[0015] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described here are only used to explain the present invention, not to limit the present invention.

[0016] Navicular osteonecrosis, collapse, fracture disunion, etc. often lead to symptoms such as wrist joint pain and decreased range of motion. At present, there is still a lack of implants suitable for reconstructing the original scaphoid function and preserving the space and mobility of the radiocarpal joint. In order to solve such problems, the present invention designs an adhesive ball-and-socket joint type artificial scaphoid, which can reconstruct the function of the original scaphoid, retain the flexion, rotation, and other activities of the radiocarpal joint, reduce the pressure on the radial side ...

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Abstract

The invention provides an adhesive ball socket joint type artificial navicular bone. The adhesive ball socket joint type artificial navicular bone is an implant for reconstructing the original navicular bone function and retaining the radiocarpal joint gap and activity, and comprises a navicular bone body and a support body; the navicular bone body is an irregular shape similar to the human navicular bone and composed of a head, a body and a tail, and the support body is composed of a ball head, a neck collar and a handle. A ball socket is formed in the position, opposite to the ball head of the support body, of the body portion of the navicular bone body; the navicular bone body and the ball head form a ball socket joint; the handle is an adhesive type handle, and the adhesive type handleis in a flat banana shape with a certain radian and is smooth in surface, and the two sides of the handle body portion are each provided with two longitudinal grooves. According to the structure, theadhesive type ball socket joint type artificial navicular bone is implanted into the radiocarpal joint through an implantation instrument, and reconstruction of the radiocarpal joint can be achieved.According to the structural characteristics of the device, stress can be dispersed, the radiocarpal joint gap is kept, the good mobility of the radiocarpal joint is kept, and the radiocarpal joint iswell reconstructed.

Description

technical field [0001] The invention belongs to the technical field of repairing and reconstructing the radiocarpal joint by using an implant, in particular to an adhesive ball-and-socket joint type artificial scaphoid. Background technique [0002] Navicular osteonecrosis, nonunion, and delayed union due to trauma, strain, or other causes are clinically difficult problems, resulting in symptoms such as pain and decreased range of motion of the wrist joint. The current treatment methods are mostly scaphoid resection, tendon and other tissue packing, bone graft fusion, etc., with limited effect, which may cause problems such as degeneration of the adjacent carpal bone, reduced range of motion, and narrow space of the radiocarpal joint. At present, there is still a lack of implants and surgical methods suitable for reconstructing the original scaphoid function and preserving the space and mobility of the radiocarpal joint. Contents of the invention [0003] The purpose of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/42
CPCA61F2/4261A61F2002/4264A61F2/30767A61F2002/3006A61F2002/30649
Inventor 张海宁冷萍
Owner THE AFFILIATED HOSPITAL OF QINGDAO UNIV
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