Spinal epidural minimally-invasive catheter system

Abstract

The invention discloses a spinal epidural minimally-invasive catheter system which comprises a minimally-invasive catheter assembly and a guide wire assembly. The minimally-invasive catheter assembly comprises a handle and a hose; a steering wheel is arranged at the front part of the handle; a branching plug is arranged inside the rear side of the steering wheel; the front end of the branching plug is connected with the hose; infusion holes which are symmetrically formed in the hose are connected with the front end of an infusion tube at the tail of the hose by a small flow guide passage II formed in the branching plug; a rotating disk is arranged at the tail of the handle; the infusion tube and a guide wire passage pass through the rotating disk; the guide wire assembly comprises an electrode guide wire and a softness reduction guide wire; the electrode guide wire and the softness reduction guide wire are asynchronously arranged in an electrode guide wire hole in the hose by the guide wire passage and can be pulled out; the guide wire assembly is supported by a guide wire support. According to the invention, the bendable unipolar electrode guide wire and the softness reduction guide wire share one passage; infusion passages are two symmetrically formed independent passages; by combination of the infusion passages, mechanical debonding, electrical debonding and chemical debonding of a spinal epidural nerve root can be simultaneously implemented.

Description

technical field [0001] The invention relates to a device for treating spinal pain, in particular to a spinal epidural minimally invasive catheter system. Background technique [0002] The cause of spinal pain such as low back pain and sciatica has undergone a change from the past mechanical compression theory to the current popular chemical nerve root inflammation theory. , or the continuous overstretching of the affected nerve, resulting in an increase in its internal tension, which cannot be eliminated in a short period of time, thereby causing neuritis; the current popular theory of chemical nerve root inflammation believes that lumbar disc bulge, herniation, prolapse, and dissociation And degeneration often induces the nucleus pulposus, cartilage tissue, nerve branches, etc. to release a variety of inflammatory factors, such as phospholipase A2, tumor necrosis factor, interleukin, platelet growth factor and transforming growth factor, these inflammatory factors will acce...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the following technical problems of the current spinal epidural minimally invasive catheter: 1. The guide wire channel and the infusion channel share the same channel, and it is necessary to send the front end of the tube core to the lesion, and then take out the guide wire before proceeding. However, the tube core has good flexibility. During the process of removing the guide wire, the front end of the tube core may be displaced due to the inability to maintain the original curvature, so that the drug cannot be accurately injected into the lesion. At the same time, the catheter is only Limited to the realization of the infusion function, the infusion and nerve root and surrounding fibrous tissue cannot be stripped simultaneously, which prolongs the operation time; 2. The bending degree of the tube core can be adjusted through the handle, and the bending degree cannot be positioned and maintained, and the strength is difficult to grasp. Excessive operation may cause damage to the nerve root; 3. Electrical resection and radiofrequency ablation cannot be performed on the adhesion tissue around the nerve root

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