Wearable constant current output device capable of real-time adjustment of stimulation intensity and control method

Abstract

The invention relates to a wearable constant current output device capable of real-time adjustment of the stimulation intensity and a control method thereof. The wearable constant current output device includes a processor and a communication module connected to the processor and used for implementing communication between the processor and a host computer, a power module for supplying power to the entire device, a boosting unit, and a constant current output unit; and a boosting module includes a N-channel boosting module connected to the processor; the constant current output unit comprisesan N-channel constant current output module respectively connected to the processor, wherein N is a positive integer; the device adjusts an stimulation parameter and can output bipolar constant current pulses via multiple channels in real time by the processorf. The wearable constant current output device realizes the adjustment of the stimulation parameter by receiving the serial port data, and can adjust the frequency, the amplitude and the pulse width of the output pulse in real time; the output waveform of the invention is a bipolar pulse, equal positive and negative charges are provided,and charges will not be accumulated in the body tissue. The damage caused to the body tissue is small, and it is not easy to cause muscle fatigue, which solves the problem that the unipolar pulse stimulates the muscle to cause the electric charge to accumulate in the tissue and cause muscle fatigue.

Description

technical field [0001] The invention relates to a wearable constant current output device and a control method whose stimulation intensity can be adjusted in real time. Background technique [0002] Functional electrical stimulation (Functional Electrical Stimulation, FES) therapy is an alternative therapy when the central nervous system lacks stimulation output. It refers to the use of safe electric current to stimulate functional disorders mainly caused by central nervous system diseases such as spinal cord injury, brain trauma and stroke. It is a technical means for the target muscle to send out nerve excitement again, so that the muscle contracts to obtain functional recovery. At present, this technology has been applied in the field of rehabilitation such as cardiovascular exercise for patients with spinal cord injury, assisting paralyzed individuals to move their limbs, correcting the gait of patients with incomplete spinal cord injury during walking, and restoring tis...

AI Technical Summary

Problems solved by technology

[0004] Although there are some FES devices on the market for clinical treatment, most FES devices have some defects: 1. The output electrical stimulation intensity sequence is preset, and the stimulation parameters cannot be adjusted in real time according to the actual situation of the patient during use; 2. The output pulse is unipolar, which causes the accumulation of charges and leads to muscle fatigue; 3. Most of them are single-channel FES devices, which cannot meet the application requirements of electrical stimulation of multiple muscles at the same time; 4. The stimulation output is non-constant current, causing stimulation The amount is unstable, and the patient's comfort is poor; 5. It is powered by mains electricity, and the volume is large, so it cannot be applied in occasions that need to be worn, such as the application when walking in patients with foot drop

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