Device for operating vertebroplasty through unilateral vertebral pedicle

Abstract

The invention discloses a device for operating vertebroplasty through a unilateral vertebral pedicle. The device for operating the vertebroplasty through the unilateral vertebral pedicle comprises a guide sleeve which can steer, a universal micro drill and a bone cement injection channel which can steer. The device for operating the vertebroplasty through the unilateral vertebral pedicle has the advantages that operation and mastering are simple, and acceptability among doctors is good; the portion of saccule opening and the portion of bone cement injection are made to be arranged on the front two thirds of the central portion of the centrum, and therefore the ill vertebral is supported firmly and stably; compared with the prior art, the injection portion of the bone cement is closer to the center of the centrum but is far away from the edge of the centrum, and therefore the probability of leakage of the bone cement is reduced. Meanwhile, due to unilateral puncture, the risk that the puncturing channel enters the vertebral canal is reduced, and the risk of the leakage of the bone cement from the vertebral canal is reduced; the entering path of operation is changed from two sides to one side, the time of the operation is obviously shortened, injure to a patient is reduced and radial exposure of the patient and medical staff can be obviously reduced; the injection point of the bone cement in bones is expanded from one point to multiple points so that the bone cement is enabled to disperse more evenly in sclerotin; the using range is wide and completely identical to that of an existing vertebraoplasty technology.

Description

technical field [0001] The invention relates to an operating device for vertebroplasty through unilateral pedicle, belonging to the field of medical instruments. Background technique [0002] In 1987, Galibert et al first described percutaneous vertebroplasty (PVP) for the treatment of pain caused by vertebral hemangioma. Under the guidance of X-rays, a bone biopsy needle is punctured percutaneously through the pedicle into the diseased vertebral body, and bone cement is injected into the vertebral body through the puncture needle to increase the strength of the vertebral body, stabilize the fracture, and relieve pain. It is widely used in pain caused by vertebral osteolytic malignant tumors and osteoporotic fractures. In 1998, Wong et al first performed percutaneous kyphoplasty (PKP), which originated from PVP in concept. The design idea of ​​this technology is different from that of PVP. Before the bone cement is injected, the collapsed endplate is lifted with the expans...

AI Technical Summary

Problems solved by technology

In the thoracic spine, because the shape of the vertebral body is close to a perfect circle, as long as the needle insertion point is slightly outside, the puncture is relatively easy to enter the front center of the vertebral body. Increase the camber angle of the puncture, it is more difficult to enter the anterior central part of the vertebral body, and the operation is more difficult. After the injection of bone cement, the bone cement often causes asymmetric dispersion in the vertebral body

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