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Mouth gag for shoulder joint humerus head and marrow reaming method

A technology of opener and shoulder joint, which is applied in medical science, surgery, etc. It can solve the problems of dislocation of humeral stem of shoulder joint, mismatch of reamer square file, prosthesis not fully fitting with humerus, etc., so as to facilitate surgery. Post-recovery, improved surgical efficiency, and easy operation

Active Publication Date: 2021-12-10
BEIJING CHUNLIZHENGDA MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current shoulder joint replacement surgery is divided into proximal reaming and distal reaming. The distal reaming is round reamer reaming, and the proximal reaming is square file reaming. However, the reamer may be circular. The problem of mismatching with the square file, if you encounter a patient with better bone quality, it will be difficult to drive the file to the expected position, thus affecting the effect of shoulder joint surgery and causing the prosthesis not to fit the humerus Complete fit, or consequences of misalignment of the humeral stem at the shoulder joint

Method used

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  • Mouth gag for shoulder joint humerus head and marrow reaming method
  • Mouth gag for shoulder joint humerus head and marrow reaming method
  • Mouth gag for shoulder joint humerus head and marrow reaming method

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Embodiment Construction

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by 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 specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0029] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be located on the other component directly or indirectly. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. The indicated orientation or position is based on the orientation or position shown in the drawings, and is only for conv...

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PUM

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Abstract

The invention provides a mouth gag for shoulder joint humerus head. The mouth gag for the shoulder joint humerus head comprises a mouth gag body connected with a holder in a matched mode, and a cutting edge used for pre-reaming of the shoulder joint is arranged at the end, away from the holder, of the mouth gag body. The mouth gag has the advantages that the defect that near-end marrow reaming cannot reach an ideal position or is difficult to drive due to the fact that far-end marrow reaming instruments and near-end marrow reaming instruments are different is overcome, and it can be effectively guaranteed that the square file reaches expected positioning.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an opener and a reaming method for the humeral head of the shoulder joint. Background technique [0002] The current shoulder joint replacement surgery is divided into proximal reaming and distal reaming. The distal reaming is circular reamer reaming, and the proximal reaming is square file reaming. However, the reamer may be circular. The problem of mismatching with the square file, if you encounter a patient with better bone quality, it will also be difficult to drive the file to the expected position, thus affecting the effect of shoulder joint surgery and causing the prosthesis not to fit the humerus A perfect fit, or a consequence of misalignment of the humeral stem of the shoulder joint. Contents of the invention [0003] The present invention provides an opener and a reaming method for the humeral head of the shoulder joint, with the purpose of overcoming at...

Claims

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Application Information

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IPC IPC(8): A61B17/16
CPCA61B17/1604A61B17/164A61B17/1657A61B17/1659A61B17/1684A61B2017/564
Inventor 商超朱更博郭静
Owner BEIJING CHUNLIZHENGDA MEDICAL INSTR
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