Minimally invasive facetectomy guiding and positioning device and minimally invasive facetectomy guiding and positioning instrument assembly

Abstract

The invention discloses a minimally invasive facetectomy guiding and positioning device. The device has a first end, a second end, a first guide needle for piercing into the vertebral pedicle, and a second guide needle for inserting into the articular process. The invention furthermore provides a minimally invasive facetectomy guiding and positioning instrument assembly. The instrument assembly comprises the minimally invasive facetectomy guiding and positioning device, an expansion sleeve, a separation sleeve, a replacement rod, a hook-shaped sleeve and a ring saw. According to the minimally invasive facetectomy guiding and positioning device and the minimally invasive facetectomy guiding and positioning instrument assembly, a micro endoscopic discectomy system can enter a safe working triangular region of the lumbar vertebra, the articular process approach can be accurately passed in the operation, a proper amount of the articular process can be excised under the minimally invasive condition, the stability of the motion segment of the spine is slightly destroyed, and the nerves are prevented from being injured in the operation; and in addition, a very small wound is incised from the outside skin tissue only via a channel, so that the wound area is greatly reduced and a patient can quickly get well.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a guiding and positioning minimally invasive facet excision instrument. Background technique [0002] The treatment of lumbar degenerative diseases (including lumbar spinal stenosis, spondylolisthesis, degenerative scoliosis and intervertebral discogenic diseases, etc.) is to relieve the compression on the cauda equina nerve by removing the intervertebral disc, ligamentum flavum, articular process, etc., the traditional intervertebral disc Resection is an open operation, which causes great pain and trauma to the patient, and has a long recovery period and slow healing. In recent years, minimally invasive techniques, especially spinal endoscopy, have made gratifying achievements in clinical application, and intervertebral disc resection is performed with the assistance of spinal endoscopy. [0003] At present, minimally invasive vertebral body resection is the development trend...

AI Technical Summary

Problems solved by technology

[0003] At present, minimally invasive vertebral body resection is the development trend of the industry, but there are problems such as the articular process cannot be removed by minimally invasive methods, the operation is difficult to enter the safe working triangle, and the nerves are easily damaged, which makes the operation more difficult. risk

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