Vertebral body forming device with expansion distance control mechanism

Abstract

The invention relates to the technical field of medical instruments, and discloses a vertebral body forming device with an expansion distance control mechanism. The device comprises a device tube, the device tube is of a circular tube-shaped structure, scales are arranged on the outer circular wall surface of the device tube, a puncture tube is arranged in the device tube, and the puncture tube is of a circular tube-shaped structure. A threaded device tube is arranged at the far side position of the inner circle wall face of the puncture tube, and a puncture propelling mechanism is arranged outside the threaded device tube. By arranging a driving column, during work, medical staff twists a shifting block, the shifting block drives the driving column to rotate, when a limiting block is in threaded connection with the driving column through a driving hole, the driving column can rotate to drive the limiting block to move, a limiting hole formed in the limiting block is connected with the sliding block, at the moment, the limiting block moves to drive the puncture tube to move, and medical staff can further determine the degree of puncture of the device to a patient according to the coverage degree of scales formed in the outer circle wall face of the puncture tube when the limiting 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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