A Phrenic Nerve Light Stimulation System with Variable Light Intensity

Abstract

The invention discloses a phrenic nerve optical stimulation system with variable light intensity, which comprises a myoelectric collection device, a controller, a laser, an optical fiber and a light transmission device; Pass it to the controller; the controller is used to receive the diaphragm contraction signal transmitted by the myoelectric collection device, and send an instruction to the laser to emit a specific intensity infrared pulse laser according to the diaphragm contraction signal; the laser is used to emit a specific intensity infrared pulse according to the instruction issued by the controller Laser; the optical fiber is connected between the laser and the light-passing device; the light-passing device is provided with an optical path reflection mirror for changing the optical path of the infrared pulse laser. Using the system of the present invention can directly irradiate nerve tissue with infrared pulsed laser, causing instantaneous energy accumulation in the tissue, thereby establishing a temperature gradient, causing light and heat to be generated in the tissue, thereby inducing nerve activity, and improving the safety and accuracy of use.

Description

technical field [0001] The invention relates to the technical field of medical devices, and more specifically relates to a phrenic nerve light stimulation system with variable light intensity. Background technique [0002] Spinal cord injury is a serious disease that can lead to varying degrees of paralysis of the respiratory muscles and the inability to maintain normal respiratory function. Patients who cannot breathe spontaneously need reconstruction of respiratory function. [0003] In the ventilation mode of traditional respiratory function reconstruction, the ventilator needs to be triggered by pressure or flow to deliver air. Only when the pressure or flow rate in the airway changes to the trigger level of the ventilator, the ventilator can sense and prepare to deliver air. However, in patients with spinal cord injury, the central nervous drive is insufficient or the respiratory muscles are paralyzed. The pressure or flow rate changes caused by early inspiration are n...

AI Technical Summary

Problems solved by technology

[0005] However, the electrodes used for electrical stimulation need to directly contact the target nerve tissue, which is easy to cause contact mechanical damage to the fragile biological tissue; secondly, the impact of the stimulation current will spread to a part of the adjacent area in the tissue, and it is impossible to accurately stimulate smaller neurons. Nerve tissue or even a single neuron within the range; in addition, because the response of the nerve tissue after being stimulated is presented in the form of electrical signals, the stimulus source that is also the electrical signal will be affected when the nerve action potential is detected during the electrical stimulation process. effects, resulting in so-called "artifacts"

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