Suction cutting type percutaneous vertebral-plate-drilling precise depth-limiting trephine set for minimally invasive spine surgery

Abstract

The invention discloses a suction cutting type percutaneous vertebral-plate-drilling precise depth-limiting trephine set for minimally invasive spine surgery, belonging to the field of medical instruments. The trephine set comprises a depth-limiting trephine, a depth-limiting soft-tissue strutting sleeve arranged at the bottom end of the depth-limiting trephine in a sleeving mode and detachably connected with the depth-limiting trephine, a depth-limiting grinding disc arranged in the depth-limiting trephine and detachably connected with the depth-limiting trephine, limiting buckles respectively arranged at the top end of the depth-limiting trephine and the top end of the depth-limiting grinding disc in a sleeving mode, and a saw ring arranged on the bottom side of the depth-limiting trephine. With the trephine set in the invention, a channel is opened up for further intraspinal operation of the spine; the trephine set is accurate, safe and efficient, changes the operation mode that a vertebral plate needs to be bitten and cut by a rongeur or needs to be ground off with a spherical high-speed grinding drill bit under X-ray fluoroscopy detection in traditional operation, avoids excessive excision injury to the vertebral plate and condiserable radiation exposure of doctors and patients, reduces interference with and injury to nearby peripheral soft tissues and nerve structures inspinal canalis vertebralis, and is convenient to operate, reduced in operation time, scientific in design, high in efficiency and good in safety.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a suction-cut percutaneous laminar drilling precision depth-limiting ring saw set for minimally invasive spinal surgery. Background technique [0002] Minimally invasive surgery is the mainstream direction of clinical medicine development, and percutaneous minimally invasive technology is an important way to achieve minimally invasive spinal surgery. From the posterior approach of the spine through the skin and soft tissue to achieve minimally invasive precise, targeted circumcision, grinding to achieve regular resection of the target site of the lamina and drilling to establish a bone channel or partial resection to expand the interlaminar space , so as to establish a surgical path for subsequent intraspinal surgery mistakes, which is the premise of achieving minimally invasive spinal canal lesion resection. Compared with traditional open laminectomy techniques, it has less trauma...

AI Technical Summary

Problems solved by technology

It changed the previous traditional surgery that required rongeurs to cut the lamina or use the spherical high-speed grinding drill to grind the lamina under X-ray perspective monitoring, avoiding excessive resection damage to the lamina or preventing the spherical grinding drill from protruding into the vertebral lamina. Injured nerves require a lot of radiation exposure for both doctors and nurses to monitor their position, and the channels created by the rongeur bite or spherical burr grinding the lamina are often irregular, which seriously damages the tissue structure that maintains the stability of the spine. Large trauma, low surgical efficiency, long intraoperative time-consuming, slow postoperative recovery, high risk of nerve injury caused by protruding into the spinal canal, excessive damage to soft tissue and bone structure leads to spinal instability, often requires additional internal fixation device reconstruction Spinal stability, resulting in the loss of motion segments and high surgical costs

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