Nickel titanium temperature memory alloy centrum compression fracture orthopedic repositor and device

A technology of compressing fractures and temperature memory, applied in the field of medical devices, can solve the problems of increased X-ray exposure, contrast agent leakage, balloon bone puncture, etc., to reduce the number of transilluminations, improve safety, and facilitate processing. Effect

Active Publication Date: 2006-09-13
苏州奥森佩克医疗科技有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high-pressure-resistant balloon used in kyphoplasty is made of special materials, imported from abroad, and the cost is high; a contrast agent is required during use; the balloon is in danger of being punctured by bone in the vertebral body, which may cause the contrast agent to leak and cause serious damage. Blood vessels and spinal canal
[0006] The current clinical percutaneous pedicle puncture operation is divided into steps, and the operation is cumbersome. The C-arm X-ray machine monitors it multiple times, which increases the X-ray exposure of the operator.

Method used

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  • Nickel titanium temperature memory alloy centrum compression fracture orthopedic repositor and device
  • Nickel titanium temperature memory alloy centrum compression fracture orthopedic repositor and device
  • Nickel titanium temperature memory alloy centrum compression fracture orthopedic repositor and device

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Embodiment Construction

[0027] According to different parts of the vertebral body and different compression geometry, the following parameters are designed for selection:

[0028] The overall length of the temperature memory alloy vertebral body compression fracture orthopedic resetter is designed in three specifications: 20mm, 25mm, 30mm; the top length is 2mm; the body length is 14mm, 19mm, 24mm; the tail connecting tube is 4mm.

[0029] According to the parameters of the pedicle, three specifications of the diameter of the connecting tube are designed, the outer diameter / inner diameter are 4.4mm / 3.8mm, 5.0mm / 4.2mm, 6.0mm / 5.2mm.

[0030] The orthopedic reducer is a 0.75mm memory alloy plate with a thickness of 1mm, and the tail end is moved to a connecting tube with a thickness of 0.3mm to 0.5mm.

[0031] According to the height of the vertebral body in different parts, the height of the orthopedic reducer after fully stretched is designed into three specifications: 10mm, 13mm, and 16mm.

[0032] ...

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Abstract

A NiTi marmem type correcting restorer for treating the compressed bone fracture of vertebral body has a spherical, semi-spherical, ellipsoidal, or bottle-shaped main body, a top end with a small hole, and a tail tube able to be matched with the top end for push-in device. Its main body has a tubular shape at low ambient temp and can be restored to its original shape in human body for supporting the fracture position.

Description

technical field [0001] The design of the invention relates to a medical device, in particular to an implantable nickel-titanium temperature memory alloy orthopedic resetter for reduction and reinforcement of spinal vertebral body compression fractures. Background technique [0002] Vertebral compression fractures of the spine are a common disease, and there are different natures and types of vertebral fractures at different ages. The traditional treatment of vertebral compression fractures is the posterior short-segment pedicle screw technique based on the three-column theory of the spine. The screw is implanted into the normal pedicle adjacent to the upper and lower sides of the affected vertebra. The "stretch-compression" principle of the peripheral ligaments of the body was used to reset the affected vertebra; the internal fixation was removed after the fracture healed, and two operations were performed. [0003] Posterior pedicle screw technology has been clinically use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/70A61B17/16A61B17/56A61B17/88
Inventor 刘小勇
Owner 苏州奥森佩克医疗科技有限公司
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