Gear Adjustable Lumbar Disc Herniation Target Aimer

Abstract

The invention is applicable to the technical field of medical instruments, and provides a gear adjusting lumbar disc herniation target collimator and a collimation puncture method thereof. The collimator comprises an alpha angle positioner and a beta angle positioner, the alpha angle positioner comprises a fan-shaped alpha angle ruler, a telescopic rod and a first locking part, the telescopic rod can penetrate the center of the alpha angle ruler, the first locking part is used for fastening the telescopic rod, the telescopic rod can circumferentially reciprocate along with the alpha angle ruler by taking the center of the alpha angle ruler as an axis, the beta angle positioner sleeves the telescopic rod and comprises a fan-shaped beta angle ruler and a guide cylinder penetrating the center of the beta angle ruler, and the guide cylinder can be inclined to a plane of the alpha angle ruler by a certain target angle by rotating the beta angle ruler. The collimator is high in operability, accurate in puncture positioning and applicable to collimation puncture of other arbitrary selected targets, X-ray radiation dosage is remarkably decreased, surgical time is shortened, surgical risk is reduced, and surgical effect is improved.

Description

technical field [0001] The invention belongs to the technical field of medical instruments, in particular to a gear-adjusted lumbar disc herniation target collimator. Background technique [0002] With the development of minimally invasive spine surgery, endoscopic removal of lumbar disc herniated nucleus pulposus and other focal tissues (ie targets) that compress nerve roots under the intervertebral foramen is the most minimally invasive spine surgery, and is gradually being used patient accepted. However, because the lumbar intervertebral disc 10 herniated lesion site (target 4) is extremely small, such as figure 1 As shown, in front of the target point 4, there are the vertebral body 20 and the anterior part of the vertebral body adjacent to the abdominal aorta and the great blood vessels of the inferior vena cava, and the rear of the target point 4 is adjacent to the nerve root 40 and the dural sac containing the cerebrospinal fluid and other important tissues, as well ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a gear-adjustable lumbar disc herniation target aiming instrument, which aims to solve the problem of human body caused by repeated puncture due to inaccurate positioning and puncture when puncturing the lesion site target of herniated intervertebral disc in the prior art. Exposure to a large amount of X-ray radiation and the problems of increasing patient pain, operation time and operation risk, and solving the problems of poor minimally invasive surgery effect of transforaminal endoscopy and long learning curve for the operator to master the transforaminal endoscopic technique

Images