Miniature vertebral body opening device and its transferring device

Abstract

The nickel-titanium memory alloy product miniature vertebral body opening device includes a handle and two claws, the rear ends of two claws and front end of the handle are fixed together, and the front end of two claws is separated into V-shaped form, the centre of the handle is equipped with an axial through hole. It has its matched conveying device including conveying bar and handle, and the front end of the conveying bar is equipped with a projection which can be inserted into the above-mentioned central hole of the handle of the miniature vertebral body opening device.

Description

technical field

[0001] The invention relates to a medical device for treating traumatic vertebral fractures and senile vertebral body collapse, in particular to a device for treating compression fractures, a miniature vertebral body spreader and a delivery device thereof. Background technique

[0002] Vertebral compression fracture is one of the common diseases in orthopedic surgery. The treatment usually involves placing a fixation device in the pedicle of the vertebra adjacent to the diseased vertebra, and then reducing and fixing the vertebral body. For example, Chinese patent 98241135.9 introduces a vertebral body distraction fixation device, which consists of two pedicle fixation screws, a pressurizing rod, a distracting rod and a fastening nut. The structure of this type of device is relatively complicated, and it is necessary to drill a hole in the vertebra adjacent to the diseased vertebra and insert a screw. After the diseased vertebra heals, a second operation is r...

Images