Artificial ligament

An artificial ligament and ligament technology, applied in ligaments, muscles and other directions, can solve the problems of large wounds, unstable and lasting bone end fixation, and inability to accurately adjust the length, so as to achieve less joint damage, maintain long-term effectiveness, and reduce stress shielding. Effect

Pending Publication Date: 2019-07-26
THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV +1
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] In view of this, the purpose of the present invention is to provide an artificial ligament to solve the problems of large wounds, inaccurate length adjustment and weak and durable fixation of bone ends in the existing fixation methods.

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Embodiment Construction

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0030] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention relates to an artificial ligament and belongs to the technical field of replacement prostheses. The artificial ligament comprises a ligament body and a bone anchor module; the bone anchor module comprises a first anchor, a second anchor and a length adjusting mechanism, wherein the first anchor and the second anchor are arranged at both ends of the ligament body, the length adjustingmechanism is arranged between the first anchor and the ligament body, the first anchor is rotatingly connected with the ligament body through the length adjusting mechanism, and both the first anchorand the second anchor are provided with connecting threads for connecting a bone tunnel and driving flanges for driving rotation. According to the artificial ligament, by means of the bone anchor module, the ligament body can be fixed inside an articular cavity only simply by forming small sections of holes at both ends of a joint bone, so that a patient can achieve low surgical injury and quickrecovery; when being fixed, the artificial ligament can avoid rotating relative to the joint bone or increasing the length; meanwhile, the length of the ligament body can be adjusted through the length adjusting mechanism to reach an optimal state, so that the artificial ligament can functionally replace a natural ligament.

Description

technical field [0001] The invention relates to the technical field of replacement prostheses, in particular to an artificial ligament with firm bone ends, adjustable length and less surgical damage. Background technique [0002] With the rapid development of material science and biomechanics, the properties of artificial ligaments are getting closer to natural ligaments. At present, artificial ligaments mainly produced by LARS are widely used in damaged joints. [0003] The firm combination between the artificial ligament and the host bone is the key to the effect and service life of ligament replacement. The existing artificial ligament fixation methods mainly include: axial screw extrusion type and transverse screw suspension type. The axial screw extrusion type uses metal screws to squeeze the artificial ligament in the bone canal to form fixation. This solution reduces the contact area between the ligament and the bone tunnel, and the internal space of the ligament is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/08
CPCA61F2/08
Inventor 王富友张玲
Owner THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV
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