A vertebral body shaper with a mechanism for controlling the expansion distance

Abstract

The invention relates to the technical field of medical devices, and discloses a vertebral body shaper with a mechanism for controlling the expansion distance, including a tube, the tube is a circular tube structure, and the outer circular wall of the tube is provided with scales, and the tube is There is a puncture tube inside. The puncture tube is a circular tube structure. A threader is provided on the far side of the inner circular wall of the puncture tube. The outside of the tube is equipped with a puncture propulsion mechanism. By setting the driving column, the medical staff can twist and move when working. block, the toggle block drives the drive column to rotate, and when the limit block is screwed together with the drive column through the drive hole, the rotation of the drive column can drive the limit block to move, and the limit hole opened on the limit block is connected with the sliding block. The movement of the block can drive the movement of the puncture tube, and the medical staff can further determine the degree of puncture of the patient by the device according to the degree of coverage of the scale on the outer circular wall of the cover tube when the block moves.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a vertebral body shaper with a mechanism for controlling the expansion distance. Background technique [0002] Long-term calcium deficiency in the human body can lead to osteoporosis, which can lead to fractures in severe cases. For vertebral compression fractures caused by osteoporosis, traditional conservative treatment methods emphasize bed rest, but they cannot quickly and effectively relieve the patient's persistent and severe pain. And the aggravation of kyphosis, resulting in reduced chest volume, ventilation disorders, chronic hypoxia, cardiopulmonary dysfunction, and significantly increased mortality. In recent years, percutaneous vertebroplasty and balloon kyphoplasty developed on this basis have the advantages of minimally invasive, rapid pain relief, and sufficient improvement of kyphotic deformity. opened up a new path. [0003] Percutaneous vertebropl...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a vertebral body shaper with a mechanism for controlling the expansion distance, which has the advantages of determining the degree of puncture of the device to the patient, and solves the problem of the distance of the vertebral body shaper when it punctures the human body. Difficult to control; Difficult to control the distance of the vertebral body to the collapsed spine

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