Signal generating device and equipment with same

Abstract

The invention is applicable to the field of biomedical engineering technology, and provides a signal generating device and equipment with the same. The signal generating device comprises a pulse signal parameter input interface, a pulse signal generating unit, a unipolar and bipolar switching unit and a voltage power amplifying unit, wherein the pulse signal parameter input interface is used for receiving pulse signal parameters inputted from the outside; the pulse signal generating unit is used for receiving the pulse signal parameters and generating voltage signals with a corresponding frequency value; the unipolar and bipolar switching unit receives the voltage signals and forms unipolar and bipolar voltage signals; and the voltage power amplifying unit is used for amplifying the unipolar and bipolar voltage signals and outputting the amplified signals. Through the unipolar and bipolar signal switching unit, higher-frequency electrical stimulation signals with alternating polarity can be outputted to the outside, charge neutralization is realized, a stimulation threshold is reduced, the effects go deep on a visual system, a visual cortex response is induced, burns caused by long-time use can be avoided, the whole device is safer, and the user can get better use experience.

Description

technical field [0001] The invention belongs to the technical field of biomedical engineering, and in particular relates to a signal generating device and equipment with the signal generating device. Background technique [0002] About 90% of the information that human beings know about the external world is provided by vision. Normal and complete vision is produced in this way: the optical system of the eye images the external objects on the retina, and the photoreceptor cells on the retina convert the image signal into bioelectricity. The signal is then preliminarily processed by the cellular neural network and then transmitted to the visual cortex by the visual nerve fibers. The visual cortex of the brain reprocesses the obtained bioelectrical signal and perceives it to produce vision. Damage or disease in any link of the visual pathway can lead to serious visual problems, such as: retinitis pigmentosa, macular degeneration, low vision, severe amblyopia, etc. [0003] St...

AI Technical Summary

Problems solved by technology

However, the electrical stimulation signal generating equipment of the existing implantable scheme mainly outputs low-frequency single-polarity electrical stimulation, which is subject to many restrictive factors, and there are many problems such as electrical burns, and it will take a long time to enter clinical application.

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