Scaphoid surgery screw-setting and positioning device and scaphoid surgery screw-setting and positioning method

A positioning device and surgery technology, applied in surgery, surgical navigation system, medical science, etc., can solve the problems of unfavorable patient diagnosis and treatment, high cost, difficult promotion in grassroots hospitals, etc., achieve simple and reliable structure, low cost, and prevent hand errors moving effect

Inactive Publication Date: 2018-01-12
XIANGYA HOSPITAL CENT SOUTH UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Furthermore, due to the high cost of developing such a system, even if the development is successful, it will be difficult to wi

Method used

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  • Scaphoid surgery screw-setting and positioning device and scaphoid surgery screw-setting and positioning method
  • Scaphoid surgery screw-setting and positioning device and scaphoid surgery screw-setting and positioning method
  • Scaphoid surgery screw-setting and positioning device and scaphoid surgery screw-setting and positioning method

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Figure 1 to Figure 4A kind of embodiment of the screw positioning device for scaphoid surgery of the present invention is shown, comprising a hand fixation bracket 1 and a nail positioning bracket 2, the nail positioning bracket 2 includes an L-shaped rotating rod 21, and the vertical rod of the L-shaped rotating rod 21 Installed on the hand fixed bracket 1, the L-shaped rotating rod 21 is equipped with a slider 22 that can rotate and move laterally along the cross bar. 24, the knob 24 is provided with a nail guide tube 25. When in use, first use the hand fixation bracket 1 to fix the patient's hand in the shape required for nail placement, and then use a CT machine to perform a CT scan on the patient's hand in the nail placement shape to find out the position of the nail placement point and the direction of the nail placemen...

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Abstract

The invention discloses a scaphoid surgery screw-setting and positioning device and a scaphoid surgery screw-setting and positioning method. The scaphoid surgery screw-setting and positioning device comprises a hand fixing support and a screw-setting and positioning support; the screw-setting and positioning support includes an L-shaped rotating rod, a vertical rod of the L-shaped rotating rod ismounted on the hand fixing support, a transverse rod of the L-shaped rotating rod is sleeved with a slider that may rotate and traverse along the transverse rod, a lifting rod penetrates the slider, the bottom of the lifting rod is provided with a knob, and the knob is fitted with a screw-setting guide tube. The scaphoid surgery screw-setting and positioning method comprises the steps of S1, fixing a hand; S2, scanning; S3, adjusting and positioning; S4, fixing and removing. The scaphoid surgery screw-setting and positioning device and the scaphoid surgery screw-setting and positioning methodhave the advantages that the structure is simple and reliable, the operation is convenient, the cost is low, and scaphoid screw setting precision and efficiency can be greatly improved.

Description

technical field [0001] The invention mainly relates to a positioning technology for nail placement in scaphoid surgery, in particular to a positioning device and a positioning method for nail placement in navicular bone surgery. Background technique [0002] Scaphoid fracture accounts for 71.2% of carpal fractures and is a common disease in orthopedics. The treatment of fresh scaphoid fractures includes surgical and non-surgical treatments. Non-surgical treatment is mainly long-arm or short-arm tubular plaster fixation, which is mainly suitable for stable fractures. However, external fixation takes a long time and has many complications. Due to long-term plaster fixation, the incidence of complications such as nonunion, osteonecrosis, fracture loosening, muscle atrophy, and joint stiffness is high. Therefore, surgical treatment is often advocated clinically even for non-displaced fractures. Minimally invasive internal fixation with percutaneous screws has gradually becom...

Claims

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Application Information

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IPC IPC(8): A61B17/90A61B34/20A61B6/03
Inventor 唐举玉吴攀峰王聪杨符劲飞
Owner XIANGYA HOSPITAL CENT SOUTH UNIV
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