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Acetabulum file holding positioner

An acetabular rasp and positioner technology, applied in the field of medical devices, can solve the problems of poor stability and increased risk of postoperative loosening, and achieve the effects of ensuring stability, smooth operation, and saving operation time

Inactive Publication Date: 2018-02-27
BEIJING CHUNLIZHENGDA MEDICAL INSTR
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] The existing acetabular reamer and connecting rod can only guarantee its stability when grinding the shape of the entire acetabular socket with a complete spherical structure, and cannot accurately grind the human acetabular cavity according to the size of the acetabular block prosthesis. When the shape of the acetabular fossa cannot be accurately matched with the acetabular block prosthesis, the stability of the prosthesis after implantation in the human body will be very poor, which greatly increases the risk of postoperative loosening

Method used

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Embodiment Construction

[0020] In order to better understand the purpose, structure and function of the present invention, the acetabular file holding positioner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0021] Such as figure 1 with figure 2 As shown, it shows the acetabular file holding positioner of the present invention, which is used to support and position the acetabular file 5 used to file the physiological acetabular socket of the human body, so that the acetabular file 5 stabilizes the bone defect above the acetabulum , Precise grinding and shaping to ensure the stability of the acetabular pad prosthesis implanted in the human acetabulum. The acetabular file holding positioner of the present invention includes a thickness adjustment support 2 and an acetabular fossa support 3. The thickness adjustment support Part 2 is columnar, with a U-shaped groove at the top, and the acetabular file connecting rod 4 is placed in t...

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Abstract

The invention discloses an acetabulum file holding positioner. The acetabulum file holding positioner is used for conducting precise grinding and shaping on a bone defect part above the acetabulum. The acetabulum file holding positioner comprises a thickness adjusting support (2) and an acetabular fossa support (3), wherein the thickness adjusting support (2) is in a columnar shape, the top of thethickness adjusting support (2) is connected with an acetabulum file connecting rod (4), and the thickness adjusting support (2) is used for supporting the acetabulum file connecting rod (4); the acetabular fossa support (3) is fixedly connected with the bottom of the thickness adjusting support (2), in a hemispherical shape, matched with the shape of an acetabulum file (5), arranged on the bottom of the acetabulum file (5), used for supporting the acetabulum file (5) and controls the acetabulum file connecting rod (4) to drive the acetabulum file (5) to rotate around the thickness adjustingsupport (2) on the acetabular fossa support (3). According to the acetabulum file holding positioner, the acetabulum file is positioned by the acetabulum file positioner, the effect that the acetabulum file can conduct precise filing and shaping on the bone defect part above the acetabulum is achieved, and the stability of a prosthesis implanted into the acetabulum of a human body is ensured.

Description

technical field [0001] The invention relates to a medical instrument, in particular to an acetabular file holding positioner. Background technique [0002] Artificial hip joint prosthesis replacement surgery is used in the treatment of hip joint lesions. The diseased femoral head in the patient's body is removed, and the corresponding acetabular spacer prosthesis is installed. Among them, the acetabular fossa of the human body must be ground. Therefore, there are higher requirements for auxiliary surgical instruments in replacement surgery. Acetabular reamers are used for grinding operations, and acetabular reamer holders are clinically important. role. [0003] The existing acetabular reamer and connecting rod can only guarantee its stability when grinding the shape of the entire acetabular socket with a complete spherical structure, and cannot accurately grind the human acetabular cavity according to the size of the acetabular block prosthesis. When the shape of the acet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/17A61B17/16
CPCA61B17/1735A61B17/16A61B17/1746A61B2017/1602
Inventor 史春宝陈立叶解凤宝尚希福周建生项征查正庄金奎丁涛
Owner BEIJING CHUNLIZHENGDA MEDICAL INSTR
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