Application of east-to-take-out peripheral nerve semi-implantation type electric stimulation system

Abstract

The present invention relates to an application of easy-taking peripheral nervous half-implantation type electrical stimulation system. The system is composed of functional output device, functional input device, data output device, information output device, electric power input device and contact device. The invention comprises applications of said system in peripheral nervous injured diseases, including: peripheral nerve denervated caused by violence trauma such as cutting, puncturing, breaking or indirect injury such as fracture, dislocation; peripheral nerve avulsion caused by draw-off; peripheral nerve destroyed caused by crush; peripheral nerve incidental injury caused by operation and neural inflammatory caused by various factors. The system enlarges application range of peripheral nervous half-implantation type electrical stimulation system in medical field, and takes the implanted electrical stimulation guide wire out directly or by assistant instrument monitoring after the treating course for nerve injured patient is finished, reduces tedious operation of taking out again and improves safety and practicality.

Description

technical field [0001] The invention belongs to the field of biomedical engineering, in particular to the application of an easy-to-take-out semi-implanted electrical stimulation system for peripheral nerves. Background technique [0002] With the rapid development of my country's industrial economy and transportation industry, the number of patients with high-energy trauma has increased significantly, and peripheral nerve injuries with a high disability rate, mainly the brachial plexus, have become common clinical and frequently-occurring diseases. For the regeneration of peripheral nerves after injury, although fine microsurgical techniques are used to repair nerves and drugs, hormones and nerve growth factors are used to promote their regeneration, the speed of nerve regeneration is still not ideal. As a kind of physical therapy, electrical stimulation uses the effect of electric current to promote the regeneration of damaged peripheral nerves and prevent muscular atrophy...

AI Technical Summary

Problems solved by technology

But it has the following disadvantages: (1) the effect is poor, mainly due to the limited stimulation intensity, because patients with higher stimulation intensity will feel uncomfortable and have the possibility of skin burns; (2) the interval between two stimulations is too long, because most Skin irritation is carried out in the hospital; (3) patients' compliance is poor

The circular clasp electrode can ensure the largest contact area with the nerve trunk, thereby generating a large local field strength, but its disadvantage is that it is easy to cause direct compression of the nerve (such as the ring is too small) or repeated sliding friction ( If the ring is too large), it will cause fibrous tissue hyperplasia and damage to the blood supply of the nerve. At the same time, it has the risk of cumbersome operation and secondary damage to the nerve when removing the electrode.

Therefore, how to minimize the damage to the nerve and successfully remove the electrode guide wire while ensuring a good stimulation effect has become a thorny problem that limits the widespread application of implantable electrical stimulation.

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