Percutaneous spinal endoscope auxiliary controller

Abstract

The invention discloses a percutaneous spinal endoscope auxiliary controller and relates to the field of medical instruments, the percutaneous spinal endoscope auxiliary controller comprises a fixingseat and a fixing arm connected with the fixing seat, wherein the fixing arm is connected with a fixer; the fixer is connected with a working sleeve; the fixer comprises a fixing frame and a universalring; one end of the fixing frame is connected with the fixing arm; the other end of the fixing frame is provided with a bearing cavity; the bearing cavity is provided with an inner spherical surface; the universal ring can rotate in the bearing cavity; the universal ring is provided with an outer spherical surface matched with the inner spherical surface; the universal ring is provided with a hollow channel; the working sleeve is arranged in the hollow channel and can rotate in the axial direction and / or axially move; the fixing frame is provided with an angular locking assembly for lockingthe universal ring, and the universal ring is provided with an axial locking assembly for locking the working sleeve. According to the invention, the percutaneous spinal endoscope auxiliary controllercan simultaneously achieve angular control on the axial control of the working sleeve, provides a three-dimensional dynamic and static controllable mechanical fulcrum for the operation of the endoscope, and ensures that the operation under the endoscope of a power grinding drill, an instrument and the like is safer, more accurate, more controllable, more efficient and labor-saving.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a percutaneous spinal endoscope controller. Background technique [0002] With the development of minimally invasive spinal surgery technology and the improvement of related instruments and equipment, especially the emergence of endoscopic power drills, the indications of percutaneous spinal endoscopy continue to expand. From the early transforaminal approach to the interlaminar approach From simple lumbar disc herniation, to various types of intervertebral disc herniation, to lumbar spinal stenosis, and to cervical and thoracic disc herniation, spinal stenosis and microscopic Intervertebral fusion, etc., have achieved good clinical results and become the main minimally invasive means of treating spinal diseases. The YESS and TESSYS technologies of early percutaneous spinal endoscopy are mainly interventional endoscopic operation modes, and the technical key points are mainly ...

AI Technical Summary

Problems solved by technology

[0003] In the previous percutaneous spinal endoscopic operation, the working cannula was basically controlled by hand, and the assistant held the working cannula. It took 1.5-2 hours for a minimally invasive operation on the cervical and lumbar spinal canal, and it took more than three for thoracic spinal canal stenosis. Hours, or longer, it is very hard to hold the working cannula during the precise operation under the microscope, which is a physical and endurance challenge for both the operator and the assistant; the control of the working cannula during the operation is completely controlled by the assistant and the operator. It is very easy for the working cannula to slip out of control under excessive fatigue, which poses a potentially huge risk to the spinal cord and nerve roots in front of the orifice; it is difficult to maintain the axis and angle of the working cannula during the coaxial operation under the microscope. Simultaneous precise control, with the working cannula as the fulcrum, it is an extreme technical challenge to grind away the bone that compresses the spinal cord and nerve roots during the operation under the power drill with the working cannula as the fulcrum. A slight shift in the control of the working cannula may damage the spinal cord , nerve roots, bring safety hazards to percutaneous endoscopic operation, and even affect the minimally invasive development of percutaneous spinal endoscopy in cervical, thoracic and lumbar spinal stenosis diseases

[0004] There are still two disadvantages in the current fixation of the working cannula of percutaneous spinal endoscopy: first, the working cannula wall is threaded, and it is fixed by screwing in and embedding in the tissue. The fulcrum function of operating the working cannula still needs to be fixed by the assistant’s hand; second, the current percutaneous spinal endoscope fixation arm has a fixed head that is fixed in one direction, and the working cannula can only be controlled axially to control the depth of the working cannula. And axial rotation (the duckbill direction of the working end of the working sleeve), it cannot realize the control of the angular swing at the same time as the axial control. If the swing needs to be loosened by the bolts of each section of the fixed arm, it can swing to each angle. If it is loose, the axial position of the entire working sleeve may change, so the fixed arm only plays the role of fixing the working sleeve, and cannot assist in controlling the power drill under the microscope and the operation of the instrument.

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