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 includes a handle and a hose; There is a shunt plug, the front end of the shunt plug is connected to the hose, and the infusion holes arranged symmetrically in the hose are connected to the front end of the infusion tube through the small diversion channel 2 set in the shunt plug. There is a turntable, and the infusion tube and the guide wire channel pass through the turntable; the guide wire assembly includes an electrode guide wire and a flexible guide wire, and the two pass through the guide wire channel and are not simultaneously set in the electrode guide in the flexible tube. The wire hole can be pulled out, and the wire guide assembly is supported by the wire guide support. The bendable unipolar electrode guide wire and the flexible guide wire of the present invention share one channel, and the infusion channel is two symmetrically arranged independent channels, and the combination of the two can simultaneously realize the mechanical release and electrolysis of the spinal epidural nerve root and chemical release.

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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