An injectable neurostimulator powered by radio frequency energy

Abstract

The invention discloses an injection type nerve stimulator with power supplied by radio frequency energy. The nerve stimulator is composed of a cylindrical shell provided with a cavity, electrodes connected to through holes in the two ends of the shell in a penetrating mode, a hole formed in a ball head of one electrode, antennae arranged on the inner wall of the shell in a coating mode, a rechargeable battery, a microcontroller, a micro never stimulator module, a data receiving module, a radio frequency energy collection module, a biological and temperature sensor, a pressure sensor and filling, wherein the rechargeable battery, the microcontroller, the micro never stimulator module, the data receiving module, the radio frequency energy collection module, the biological and temperature sensor and the pressure sensor are sequentially arranged in the shell in a spaced mode, sealing is achieved between the electrode and the shell, power is supplied to the functional modules by the radio frequency energy collecting module, the sensors are used for monitoring environment variables and nerve stimulation processes, and the filling is used for space filling and part fixation. The nerve stimulator can be directly injected into target spot nerves or muscular tissue an implanted nerve stimulator can not reach through an injector, and is suitable for low-impulse amplitude stimulation.

Description

technical field [0001] The invention belongs to the technical field of biomedical electronics medical instruments. It relates to an injectable nerve stimulator, and more particularly relates to an injectable nerve stimulator powered by radio frequency energy. The invention is mainly used in biomedicine to stimulate nerves or muscles. Background technique [0002] A neurostimulator is a biomedical electronic device. It is used to generate low-frequency electrical pulses to perform functional nerve electrical stimulation on organisms, so as to relieve pain symptoms, restore or adjust nerve or muscle functions, etc. Neurostimulators can be calibrated by neurologists, nurses, or trained technicians to meet the specific needs of individual patients. Implantable neurostimulators are currently the most mature and widely used in the market. This neurostimulator must be surgically implanted into the body of a human or other animal, which has the following limitations: 1) implanti...

AI Technical Summary

Problems solved by technology

This neurostimulator must be surgically implanted into the body of a human or other animal, which has the following limitations: 1) implanting the implantable neurostimulator in the body requires a long period of surgery (such as It takes about twelve hours to implant a deep brain stimulator), and the patient must endure a certain amount of pain; 2) Compared with the specific target nerve that needs to be stimulated, the size of the implantable neurostimulator is relatively large and cannot be implanted To the target nerve or muscle tissue with limited shape or volume (such as the brain); in order to transmit the stimulation signal to the brain, it is necessary to introduce a long electrode extension wire on the electrode; but the electrode extension wire is easy to move , it is possible to trigger an electrical stimulus in the wrong place, which greatly increases the risk of infection

Moreover, infections induced in any part of the implanted neurostimulator tend to spread throughout the system, in which case the battery or the entire implanted neurostimulator must be replaced surgically again; 3) the current market Implantable neurostimulators commonly used in the world are mainly powered by non-rechargeable batteries, and the power will be exhausted within 4 to 10 years. At this time, another operation is required to replace the battery, so its life cycle is short; 4) implantable After the nerve stimulator is implanted in the body, if discomfort occurs, when it needs to be removed or replaced, it needs to be operated again, so the secondary damage to the body tissue is greater

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