Percutaneous vertebral plate cutting and drilling precise depth-limiting threaded type trephine set for minimally invasive spine surgery

Abstract

The invention discloses a percutaneous vertebral plate cutting and drilling precise depth-limiting threaded type trephine set for minimally invasive spine surgery, and belongs to the field of medicalinstruments. The percutaneous vertebral plate cutting and drilling precise depth-limiting threaded type trephine set for the minimally invasive spine surgery comprises a depth-limiting trephine, a limiting soft tissue opening sleeve, a limiting buckle and a saw ring, wherein the limiting soft tissue opening sleeve is arranged at the bottom end of the depth-limiting trephine in a sleeving manner and is detachably connected with the depth-limiting trephine, the limiting buckle is arranged at the top end of the depth-limiting trephine in a sleeving manner and is in threaded connection with the depth-limiting trephine, the saw ring is arranged on the bottom side of the depth-limiting trephine, and a ring cutting bone block locking thread is arranged at the end, close to the saw ring, of the inner side of the depth-limiting trephine. According to the trephine set, minimally invasive targeting of a vertebral plate of a spine is achieved, a bone channel is established through precise ring cutting and drilling, damage is reduced, and the efficiency is improved; and moreover, a surgical mode of cutting the vertebral plate through open bone rongeur forceps in the past is changed, iatrogenicdamage to the vertebral plate is reduced, the trephine set is convenient to operate, the time is saved, the trephine set is scientific and high in safety, and interference and damage to adjacent peripheral soft tissues and neural structures in spinal canals of the spine are reduced.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a percutaneous lamina cutting and drilling precision depth-limiting thread 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 precise, targeted circumcision and drilling of the vertebral lamina and removal of bone fragments to establish a bone channel or partial resection to expand the interlaminar space, so as to establish a surgical path, which is to achieve minimally invasive spinal vertebral surgery. Compared with the traditional open laminectomy technique, the premise of endovascular lesion resection has significant minimally invasive advantages such as less trauma...

AI Technical Summary

Problems solved by technology

In the past, traditional operations were mostly open surgery using lamina rongeurs to bite off the lamina, which required a wide range of paraspinal muscles to be stripped and the structure of the posterior column of the spine to be exposed. The stable tissue structure is seriously damaged, the iatrogenic trauma is large, and the operation efficiency is low, and the postoperative recovery is slow. Additional internal fixation devices are required to rebuild the stability of the spine, resulting in the loss of motion segments and high surgical costs.

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