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Shoulder replacement apparatus

A shoulder joint and neck technology, which is applied to the installation of any prosthesis in the glenoid part, and can solve problems such as position errors

Active Publication Date: 2012-12-12
托马斯·莫里斯·斯图尔特·格雷戈里
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Surgeons are forced to estimate initial position based on preoperative CT scans without the aid of surgical guidance, which can lead to significant positional errors

Method used

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  • Shoulder replacement apparatus
  • Shoulder replacement apparatus
  • Shoulder replacement apparatus

Examples

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Embodiment Construction

[0044] Embodiments of the invention are described below, by way of example only. These examples represent the best mode currently known to applicants for putting the invention into practice, but they are not the only ways in which the invention may be practiced. The description sets forth the function of the embodiment and the sequence of steps for constructing and operating the embodiment. However, the same or equivalent functions and sequences can be achieved by different embodiments.

[0045] As previously stated, optimal performance of shoulder prostheses is achieved by replicating the natural anatomy of the shoulder joint. In order to achieve correct glenoid prosthesis replacement, a reliable indication of this replacement is needed. However, as previously discussed, such indications are difficult to obtain due to the limited surgical opening for placement of the glenoid prosthesis, and potential erosion of the natural glenoid surface.

[0046] figure 1 A view of a sc...

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Abstract

A surgical device (100) for guiding a key wire during a shoulder arthroplasty procedure, comprising a guide (105) for guiding a key wire (160) during the process of drilling into a scapula, and clamp means (101) configured to engage with the scapula neck such that a key wire located in the guide is located in a predetermined geometrical relationship with the scapula neck.

Description

technical field [0001] The present invention relates to devices to aid in the fitting of shoulder prostheses, and in particular, the present invention relates to the fitting of any prosthesis in the glenoid portion of the shoulder. Background technique [0002] Replacing a damaged joint with a prosthesis is a recognized medical treatment for restoring joint function. In order to function properly, and for these prostheses to have maximum longevity, the prostheses must be installed in an optimal position. Fitting in a non-optimal position can result in restricted motion of the joint, increased rates of prosthetic wear, and increased rates of prosthetic loosening. Precise fitting of the prosthesis is therefore a critical part of the joint replacement procedure. [0003] Partial, total, or reverse shoulder arthroplasty is an effective treatment for damaged shoulders, especially for arthritis of the shoulder. Both the humeral and glenoid sides of the shoulder joint are replac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/17A61F2/40A61B17/88A61F2/46A61B17/90
CPCA61B2017/90A61B17/8897A61B2017/1778A61B2019/462A61B17/1796A61B2090/062A61B17/1778A61B17/90A61B17/1615A61B17/1684A61B17/1697A61B17/1739A61B17/8625A61F2/4657A61B2017/2837A61F2/4612A61F2002/4662A61F2002/4668
Inventor 托马斯·莫里斯·斯图尔特·格雷戈里
Owner 托马斯·莫里斯·斯图尔特·格雷戈里
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