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Centrum prosthesis

A technology of prosthesis and vertebral body, applied in the field of vertebral body prosthesis, can solve problems such as difficult spine fit, and achieve the effect of broadening applicability

Pending Publication Date: 2018-04-06
BEIJING AKEC MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to provide a vertebral body prosthesis to solve the problem that the vertebral body prosthesis is difficult to effectively cooperate with the patient's spine in the prior art

Method used

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Embodiment Construction

[0028] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0029] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0030] For the convenience of description, spatially relative terms may be used here, such as "on ...", "over ...", "on the surface of ...", "above", etc., to describe the The spatial positional relationship between one device or feature shown and other devices or features. It will be understood that the spatially relative terms are intended to encomp...

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Abstract

The invention provides a centrum prosthesis. The centrum prosthesis comprises an upper portion and a lower portion which are connected with each other, an upper ending plate is arranged at the upper end of the upper portion, a lower ending plate is arranged at the lower end of the lower portion, the upper portion and the lower portion are inserted into an inserting hole through an inserting body,and the inserting body and / or the inserting hole are / is conical, so that a conical connection structure is formed between the upper portion and the lower portion. By means of the centrum prosthesis, astructure of which at least two parts are inserted and matched is adopted, wherein the upper end plate and the lower ending plate which are used for being matched with the human centrum are arrangedon the two parts respectively, therefore the overall size of the human centrum can be adjusted by selecting parts with different sizes so that the centrum prosthesis can be better matched with the human centrum in the human body, thus surrounding tissue is kept in the original position and state, the merging face of the upper ending plate and the lower ending plate is well consistent with a physiological articular surface approaching the human centrum, and the applicability of the centrum prosthesis is improved.

Description

technical field [0001] The invention relates to the field of artificial prosthesis, in particular to a vertebral body prosthesis. Background technique [0002] The human spine will be damaged due to illness or external force, such as vertebral body tumors, severe comminuted fractures, and infectious diseases such as tuberculosis, which may lead to spinal cord and nerve damage or collapse of vertebral segments and angular deformity of the spine. Vertebrectomy is often required in patients with obvious neurological dysfunction or angular deformity. The appearance of artificial vertebral body spinal tumors, spinal tuberculosis and trauma patients provides a more reliable treatment. [0003] The existing artificial vertebral body substitutes can be roughly divided into filling type (bone cement), supporting type (titanium mesh) and supporting fixed type. Due to the difference in design and structure, the biomechanical stability of the above-mentioned various artificial vertebr...

Claims

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Application Information

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IPC IPC(8): A61F2/44
CPCA61F2/4455
Inventor 李健郭卫袁博文
Owner BEIJING AKEC MEDICAL
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