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Fusion cage

A technology of fusion device and fusion part, which is applied in the field of medical equipment, can solve the problems of patients' pain, unhealed wounds, pain, etc., and achieve the effect of alleviating pain

Pending Publication Date: 2021-06-11
SHANGHAI ARTHROPHIX MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These internal fixators are generally made of titanium alloy and stainless steel. After being implanted in the human body, the internal fixation may break due to stress shielding
The screw and titanium plate will be higher than the normal bone surface during installation, which will irritate the soft tissue, causing local irritation, wound healing, pain and other problems
Moreover, the bone marrow cavity is a hollow structure, which makes it difficult to maintain the fusion angle due to the rotation of the screws and Kirschner wires. In severe cases, it will lead to fusion failure, varus deformity and other adverse consequences
Even if there is no adverse reaction during the fusion process, a second operation is required to remove these internal fixation objects after the fusion process, which further brings pain to the patient

Method used

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Embodiment Construction

[0030] In order to make the purpose, advantages and features of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0031] As used in this specification, the singular forms "a", "an" and "the" include plural referents, and the plural referent "a plurality" includes "two or more" referents, unless the content clearly states otherwise. As used in this specification, the term "or" is generally used in the sense including "and / or", unless the content clearly indicates otherwise, and the terms "install", "connect" and "connect" should be To understand it in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a...

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Abstract

The invention relates to a fusion cage. The fusion cage comprises a column body and a fin extending outwards from the surface of the column body; the projection of the fusion cage on a first plane is in a V shape, a first included angle is formed between two arms of the V shape, the projection of the fusion cage on a second plane is in a Z shape, and a second included angle and a third included angle are formed between a first section and a second section of the Z shape and between the second section and a third section of the Z shape respectively. The first included angle, the second included angle and the third included angle are all obtuse angles, and the first plane is perpendicular to the second plane. When the fusion cage is applied to fingertip joint fusion, the fusion cage is fixedly connected with a target object through the fins and resists rotation, so that the fusion angle is kept, and the joint fusion achieves the expected effect.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a fusion device. Background technique [0002] Fusion of the first metatarsophalangeal joint is a surgical procedure to treat disease or trauma of the first metatarsophalangeal joint, and its main purpose is to relieve pain and correct deformity. As early as the 1860s, there were reports of first metatarsophalangeal joint fusion for hallux valgus. At present, most clinicians recommend the fusion of the first metatarsophalangeal joint as the correction of severe hallux valgus, thumb stiffness, traumatic arthritis, rheumatoid arthritis, and first metatarsophalangeal joint deformity induced by neuromuscular factors. main surgical method. In addition, first metatarsophalangeal joint fusion can also be used in revisions involving failed procedures on the first metatarsophalangeal joint. [0003] Fusion of the first metatarsophalangeal joint allows the thumb to bear more...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/68
CPCA61B17/68
Inventor 陈波葛亮其他发明人请求不公开姓名
Owner SHANGHAI ARTHROPHIX MEDICAL TECH CO LTD
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