Scoliosis orthopedic split positioner

A scoliosis, split-type technology, applied in the field of medical surgical instruments, can solve problems such as insufficient or excessive orthopedic angle, difficulty in precise placement, and failure of surgery, so as to avoid excessive correction, speed up surgery, and reduce intraoperative bleeding effect

Pending Publication Date: 2019-09-20
丁焕文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] According to current domestic reports, the orthopedic surgery for idiopathic scoliosis mostly uses preoperative two-dimensional imaging image measurement and marking, and intraoperative visual inspection to determine the position of the pedicle screw and the angle of correction. Good, the orthopedic angle is difficult to be insufficient or too large, or even the operation fails
[0005] Therefore, accurate placement of pedicle screws and correction angle are the key techniques of orthopedic surgery for idiopathic scoliosis. Idiopathic scoliosis is accompanied by vertebral body rotation, anatomical variation, and pedicle dysplasia. Insertion is more difficult, which increases the risk of surgery, especially the placement of thoracic pedicle screws has safety concerns, and it is particularly difficult to accurately place pedicle screws for hypoplastic pedicles, and it is urgent to locate orthopedic for idiopathic scoliosis device

Method used

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  • Scoliosis orthopedic split positioner
  • Scoliosis orthopedic split positioner
  • Scoliosis orthopedic split positioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0040](1) Obtain a two-dimensional image of the target spine and reconstruct a three-dimensional anatomical model;

[0041] (2) Accurately measure the Cobb angle through the three-dimensional anatomical model to determine the entry point and direction of the pedicle screw;

[0042] (3) According to the entry point and direction of the pedicle screw, determine the laminar fit to the left block and the lamina to fit the right block.

[0043] (4) According to the left piece of laminar fit and the right piece of lamina fit and the position of insertion, determine the shape of the left piece of spinous process fit and the right piece of spinous process fit, and merge them into the left piece of laminar fit and lamina fit the right block;

[0044] (5) The left block for fitting the spinous process of the spine and the right block for fitting the spinous process of the spine are provided with a mating female buckle and a mating male buckle to obtain a left positioning module and a r...

Embodiment example 2

[0047] (1) Obtain a two-dimensional image of the target spine and reconstruct a three-dimensional anatomical model;

[0048] (2) Accurately measure the Cobb angle through the three-dimensional anatomical model to determine the entry point and direction of the pedicle screw;

[0049] (3) According to the entry point and direction of the pedicle screw, determine the laminar fit to the left block and the lamina to fit the right block.

[0050] (4) According to the left piece of laminar fit and the right piece of lamina fit and the position of insertion, determine the shape of the left piece of spinous process fit and the right piece of spinous process fit, and merge them into the left piece of laminar fit and lamina fit the right block;

[0051] (5) The left block for fitting the spinous process of the spine and the right block for fitting the spinous process of the spine are provided with a mating female buckle and a mating male buckle to obtain a left positioning module and a ...

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PUM

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Abstract

The invention relates to a scoliosis orthopedic split positioner. The scoliosis orthopedic split positioner comprises a left positioning module and a right positioning module and is characterized in that the left positioning module comprises left spinous process fitting blocks and left vertebral plate fitting blocks, a female buckle is arranged on each left spinous process fitting block, and the left side of each left vertebral plate fitting block is provided with a pedicle screw positioning hole of a semi-cylindrical structure; the right positioning module comprises right spinous process fitting blocks and right vertebral plate fitting blocks, a male buckle is arranged on each right spinous process fitting block, and the pedicle screw positioning holes of the right positioning module correspond to those of the left positioning module. The scoliosis orthopedic split positioner has the advantages that a spinous process fitting face is completely matched with the bone, the internal inclination angle and head and tail lateral inclination angles of the vertebral pedicle can be accurately positioned, surgery time can be shortened, and surgical trauma can be reduced.

Description

technical field [0001] The invention relates to the technical field of medical and surgical instruments, in particular to a scoliosis orthopedic split-type positioner. Background technique [0002] 70% of scoliosis is idiopathic scoliosis, mainly scoliosis and rotational deformity of the spine, without congenital spinal abnormalities or other neuromuscular and skeletal diseases. Scoliosis not only presents left and right asymmetric deformities on the coronal plane, but more importantly, also presents asymmetrical lordosis on the central sagittal plane. If adolescent scoliosis is not corrected in time, the scoliosis deformity will gradually aggravate as the growth load increases, and at the same time, rotation and kyphosis may appear, which will seriously affect the growth and shape of adolescents, affect the development and function of the heart and lungs, and cause social and psychological problems. The general indication for surgery is that the Cobb's angle of the curve i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B90/11A61B17/70A61B34/10
CPCA61B90/11A61B17/7076A61B34/10A61B2034/105A61B2034/108
Inventor 丁焕文苗秋菊吴琪
Owner 丁焕文
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