Press-fitting tool for inverted shoulder joint prosthesis

A press-fitting tool and shoulder joint technology, which is applied in the field of prosthesis, can solve the problems such as weak connection between the acetabular cup and the humerus, damage to the lining, fracture of the humerus, etc., and achieves the effects of easy popularization and application, safe and reliable use, and simple structure.

Pending Publication Date: 2019-01-11
BEIJING CHUNLIZHENGDA MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the above-mentioned percussion, the operation requirements of the operator are too high, so if there is carelessness in this operation, the risks of humerus fracture, liner damage, and weak connection between the acetabular cup and the humerus are likely to occur.

Method used

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  • Press-fitting tool for inverted shoulder joint prosthesis
  • Press-fitting tool for inverted shoulder joint prosthesis

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0011] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0012] figure 1 It is a structural schematic diagram of a pressing tool for a reverse shoulder joint prosthesis according to an embodiment of the present invention; figure 2 It is a cross-sectional view of a pressing tool for a reverse shoulder joint prosthesis according to an embodiment of the present invention. Such as figure 1 and figure 2 As shown, the pressing tool 10 includes a bracket 1 capable of supporting the acetabular cup of a reverse shoulder joint prosthesis. The bracket 1 is usually constructed of a metallic material, preferably medical grade stainless steel (eg 05cr17ni4cu4nb). The bracket 1 specifically includes a crossbeam 13, a first vertical arm 11 and a second vertical arm 12, and a first bracket hook 14 provided on the bottom end of the first vertical arm 11 and a bottom hook provided on the bottom end of the second...

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Abstract

The invention relates to a press-fitting tool for an inverted shoulder joint prosthesis. The press-fitting tool for an inverted shoulder joint prosthesis comprises a bracket capable of holding a mortar cup of the reverse shoulder joint prosthesis; An indenter having a spherical surface of a spherical socket surface that matches a cushion of a top-pressure inverse shoulder prosthesis; A linear pressure apply mechanism is connected with the bracket and the pressure head. When the cup of the reverse shoulder joint prosthesis is held by the bracket, the linear pressing mechanism can be operated todrive the pressing head to move toward the cup, and the cushion placed between the cup and the cup is pressed into the cup by the pressing head, so that the cushion is locked in the cup. The press-fitting tool can help the operator to press the cushion of the reverse shoulder joint prosthesis into the cup safely, and the cushion is locked in the cup. The press-fit tool can help the operator to press the cushion of the reverse shoulder joint prosthesis into the cup safely.

Description

technical field [0001] The invention belongs to the technical field of prostheses, and in particular relates to a pressing tool for a reversed shoulder joint prosthesis. Background technique [0002] In shoulder arthroplasty, the inverted shoulder prosthesis can effectively relieve the patient's pain and improve the patient's arm lifting ability in the treatment of rotator cuff joint disease, shoulder fracture and other diseases. The existing reverse shoulder joint prosthesis mainly includes the humeral stem, the acetabular cup affixed to the humeral stem, the liner snapped into the acetabular cup, and the liner cooperates with the liner to form an articular surface between the two of the humerus head. [0003] However, since the type and size of the liner and the humeral head need to be selected according to factors such as the patient's condition and body posture, the assembly of the liner and the acetabular cup needs to be performed by the replacement operator (operator ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/46
CPCA61F2/4601A61F2/4612
Inventor 史春宝郭靖解凤宝周广明张贵民王晨曦苑振峰王大伟
Owner BEIJING CHUNLIZHENGDA MEDICAL INSTR
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