Thoracolumbar spine compression fracture percutaneous minimally invasive distraction reduction device

A compression fracture and reset device technology, applied in the field of medical devices, can solve problems such as ineffective distraction, poor distraction effect, and inability to fully meet clinical needs, so as to achieve strong controllability of operation and prevent overstretch and brace The effect of under-opening

Inactive Publication Date: 2016-03-02
邵阳市中医医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Through the research on the existing technology, the existing percutaneous minimally invasive distraction system cannot be effectively distracted, m...

Method used

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  • Thoracolumbar spine compression fracture percutaneous minimally invasive distraction reduction device
  • Thoracolumbar spine compression fracture percutaneous minimally invasive distraction reduction device
  • Thoracolumbar spine compression fracture percutaneous minimally invasive distraction reduction device

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Embodiment Construction

[0018] In order to let those skilled in the art understand the present invention more clearly and intuitively, the present invention will be further described below in conjunction with the accompanying drawings.

[0019] Such as Figure 1-5 It is a preferred embodiment of the present invention.

[0020] A percutaneous minimally invasive distraction reduction device for thoracolumbar compression fractures, comprising a long-arm pedicle screw 1, a longitudinal connector 2, an extension tube 3, and a spreader 4, and an arm of the long-arm pedicle screw 1 The arm external thread 11 is provided on the part, and the extension tube 3 is cylindrical. The lower section of the extension tube 3 is provided with a tube internal thread 31 that matches with the arm external thread 11, so that the long arm pedicle screw 1 and the extension tube 3 pass through the corresponding The outer thread of the arm and the inner thread 31 of the barrel are matched and connected, and the longitudinal connec...

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Abstract

The invention discloses a thoracolumbar spine compression fracture percutaneous minimally invasive distraction reduction device which comprises long-arm vertebral pedicle screws, a longitudinal connector, lengthened barrels and distraction devices. An arm external thread is arranged on the arm portion of each long-arm vertebral pedicle screw. The lengthened barrels are in a cylindrical shape. The lower section of each lengthened barrel is provided with an internal thread matched with the corresponding arm external thread. The long-arm vertebral pedicle screws and the lengthened barrels are connected through cooperation of the corresponding arm external threads and internal threads. The two ends of the longitudinal connector are connected to the lower ends of the two long-arm vertebral pedicle screws on the same side through nuts. The distraction devices comprise the first distraction device and the second distraction device which are vertically arranged between the two lengthened barrels in a staggered mode and used for adjusting the distance and angle between the lengthened barrels. According to the thoracolumbar spine compression fracture percutaneous minimally invasive distraction reduction device, effective distraction can be achieved for thoracolumbar spine compression fracture percutaneous minimally invasive operation, a C-arm X-ray machine is used for observation in the distraction process to achieve gradual distraction, over distraction and insufficient distraction are effectively prevented, and operation controllability is strong.

Description

Technical field [0001] The invention relates to the field of medical equipment, in particular to a percutaneous minimally invasive expansion and reduction device for thoracolumbar compression fractures. Background technique [0002] For the treatment of vertebral compression fractures, the open surgery in the past is traumatic and has many complications. Percutaneous minimally invasive open reduction is a new type of minimally invasive surgical procedure that has developed rapidly in spinal surgery in recent years. Its clinical application has confirmed its therapeutic effect with few complications. [0003] Through the research of the existing technology, the existing percutaneous minimally invasive expansion system cannot effectively expand, mainly relying on the preoperative posture reduction, and the expansion effect is not good. Therefore, the existing technology cannot fully meet the clinical needs. Summary of the invention [0004] The technical problem to be solved by the ...

Claims

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Application Information

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IPC IPC(8): A61B17/64
CPCA61B17/00234A61B17/6433A61B17/645A61B2017/564
Inventor 丁晖申小平周勇军曾有任张大勇周新谢彪肖峰张爱田陈璐虹
Owner 邵阳市中医医院
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