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Thoracic vertebra ligamentum flavum ossification substance complex retroposition device and use method thereof

A technology of ligamentum flavum and complex, which is applied in the field of thoracic spine ossified ligamentum flavum complex retrograde device, to achieve the effects of avoiding spinal cord injury, convenient use, and prolonging operation time

Pending Publication Date: 2020-01-14
ZHEJIANG PROVINCIAL PEOPLES HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The difficulty and risk of this operation brings huge risks and catastrophic consequences to spine surgeons and patients

Method used

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  • Thoracic vertebra ligamentum flavum ossification substance complex retroposition device and use method thereof
  • Thoracic vertebra ligamentum flavum ossification substance complex retroposition device and use method thereof
  • Thoracic vertebra ligamentum flavum ossification substance complex retroposition device and use method thereof

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Embodiment Construction

[0028] A device for moving the ossified ligamentum flavum complex of the present invention and its application method will be described in detail below in conjunction with the accompanying drawings.

[0029] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 As shown, a device for moving back the ossified ligamentum flavum complex of the thoracic spine includes two pedicle screw connecting rods 1 arranged on the left and right sides, and several groups of vertebrae are detachably connected to the two pedicle screw connecting rods 1 . Pedicle screw 2; two pedicle screw connecting rods 1 are detachably connected with several lifting devices 3; the lifting device 3 includes two fixed connectors 3.1 with the same specifications, and the two fixed connectors 3.1 are detachable Connected with a horizontal pull rod 3.2; the fixed connector 3.1 includes a fixed part 3.3, and the fixed part 3.3 is connected with the pedicle screw connecting rod 1; the upper part of the...

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Abstract

The invention provides a thoracic vertebra ligamentum flavum ossification substance complex retroposition device and a use method thereof. Multiple lifting devices are arranged on pedicle screw connecting rods, each lifting device comprises a fixing connecting part and a transverse connection type lifting rod, and each fixing connecting part comprises an adjustable adjusting disc and a lifting rodclamping part. During use, all that is required is to float a thoracic vertebra ligamentum flavum ossification substance complex and realize controllable backward lifting and fixation, direct excision can be avoided, and the purposes of expanding spinal canals and decompressing thoracal spines are achieved. The thoracic vertebra ligamentum flavum ossification substance complex retroposition device and the use method thereof are simple in structure and convenient to use, the adjustable lifting devices are designed, severe complications such as spinal cord injury and dura mater tearing caused by direct separation and excision can be avoided, the safety of operations can be significantly improved, and the retroposition device has great clinical significance particularly for patients accompanied with dura mater adhesion and ossification and is worth popularizing and applying in operative treatment of thoracic vertebra ligamentum flavum ossification patients.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a device for moving back the ossified ligamentum flavum complex of the thoracic spine and a method for using the same. Background technique [0002] Severe thoracic ossification of the ligamentum flavum with spinal cord compression is one of the key points and difficulties in spinal surgery. Especially when the ossification of the ligamentum flavum is adhered to the dura mater, or even the dura mater is ossified, the difficulty and risk of the operation are significantly increased. [0003] Severe ossification of the ligamentum flavum (patients with Sato type IV or V), as well as patients with dural adhesions or dural ossification, are usually treated with posterior thoracic spinal canal decompression, bone grafting, fusion and internal fixation. Attempt to separate the ossified ligamentum flavum and the dura mater that is seriously adhered to it, and resect the ossifica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/70
CPCA61B17/7032
Inventor 张骏黄亚增赵廷潇邵海宇金梦然陈锦平陈炘佶毕擎
Owner ZHEJIANG PROVINCIAL PEOPLES HOSPITAL
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