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Vertebra support ranging device

A distance-measuring device and vertebral technology, which is applied in the field of medical equipment, can solve the problems of the scale reading method not being intuitive and convenient, and the protrusion height is inconsistent, so as to achieve the effects of easy extraction, avoiding measurement errors, and preventing pollution

Pending Publication Date: 2017-11-24
SECOND AFFILIATED HOSPITAL SECOND MILITARY MEDICAL UNIV
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Problems solved by technology

However, in actual use, especially in the support operation between two non-adjacent vertebrae, there may be inconsistencies in the extension direction and protrusion height of the pedicle screws. There is a difference from the actual value, and the traditional scale reading method is not intuitive and convenient enough

Method used

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Embodiment Construction

[0056] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0057] In the embodiment, the vertebra support ranging device provided by the present invention is mainly composed of a probe rod and a resistance wire 200. The probe rod includes a rod body 101 and a probe 102, wherein the rod body 101 is made of insulating material, and the probe 102 needs to be inserted into, for example, a vertebra In vertebral support devices such as pedicle screws, and to avoid measurement errors caused by the deformation of the probe 102 material, a metal material with high ...

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Abstract

The invention provides a vertebra support ranging device which comprises probing rods and a resistance wire. Each probing rod comprises a rod body and a probe, wherein the rod bodies are prepared from an insulation material, and the resistance wire and the probes are separated by the rod bodies. The probing rods comprise the first probing rod and the second probing rod. The resistance wire is arranged between the first probing rod and the second probing rod in a penetrating mode. By means of the principle of a slide rheostat, the distance between vertebra supports is measured; meanwhile, by means of an electronic display screen, the distance value can be directly read easily and conveniently.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a vertebra support ranging device. Background technique [0002] During the operation of spondylolisthesis, spinal fracture, spinal degenerative disease, and correction of spinal deformity, pedicle screws are usually used to connect to the vertebra, and then the spinal rod is connected to the pedicle screw to complete the support of the vertebra. During the operation, The distance between the pedicle screws must be measured first to determine the length of the spinal rod to be harvested. [0003] The patent document with the publication number CN 1550220A provides a distance measurer for pedicle screws, which has two arms crossed at the axis of rotation, the ends of which can be positioned between two vertebral arches screwed into adjacent vertebrae. At the first screw, the first arm merges on the opposite side of its end into a cross bar provided with an arcuate scale portion, th...

Claims

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Application Information

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IPC IPC(8): A61B90/00G01R33/02
CPCG01R33/02A61B90/06A61B2017/564A61B2090/061Y02A90/30
Inventor 刘铁龙董连峰王静高欣陈广辉刘永刚韩智涛汪洋杨家祥刘伟波刘戈白广建曹佳实胡一为信保全
Owner SECOND AFFILIATED HOSPITAL SECOND MILITARY MEDICAL UNIV
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