Implantable neurostimulation device with frequency conversion function and system

Abstract

The invention provides an implantable neurostimulation device with a frequency conversion function and a system. The device includes a control unit, a parameter storage unit and an output unit; the parameter storage unit is used to store multiple sets of frequency conversion parameters, the frequency conversion parameters include stimulation frequency, and at least one parameter of amplitude, pulse width, stimulation contact point and duration time; and the control unit is used to obtain at least two sets of the frequency conversion parameters, and control the output unit to output at least two corresponding pulse sequences according to the at least two sets of the frequency conversion parameters.

Description

technical field [0001] The invention relates to the field of implantable medical equipment, in particular to an implantable nerve stimulation device and system with frequency conversion function. Background technique [0002] Traditional implantable deep brain stimulators (DBS) mostly use a single fixed-frequency pulse stimulation. However, clinical studies have shown that DBS has no significant therapeutic effect on the symptoms of tremor, stiffness, unresponsiveness and posture instability in some Parkinson's patients. For other patients, DBS may cause side effects such as cognitive decline, depression, language dysfunction, and decreased balance ability, causing patients to suffer from symptoms such as memory loss, dysphonia, and easy falls. Moreover, once a patient adapts to a fixed frequency of stimulation, the therapeutic effect declines over time. [0003] At present, some DBS attempts to solve the problem of ineffectiveness by increasing the stimulation frequency, ...

AI Technical Summary

Problems solved by technology

However, clinical studies have shown that DBS has no significant therapeutic effect on the symptoms of tremor, stiffness, unresponsiveness and posture instability in some Parkinson's patients

For other patients, DBS may cause side effects such as cognitive decline, depression, language dysfunction, and decreased balance ability, which may cause symptoms such as memory loss, dysphonia, and easy falls.

Moreover, once a patient adapts to a fixed frequency of stimulation, the therapeutic effect declines over time

[0003] At present, some DBS try to solve the problem of ineffectiveness by increasing the stimulation frequency, but continuous high-frequency stimulation also has many disadvantages

First, increasing stimulation frequency also increases the risk of side effects

Secondly, continuous high-frequency stimulation increases power consumption and shortens the service life of equipment

Finally, continuous high-frequency stimulation still uses a single frequency, which cannot solve the problem that the therapeutic effect is reduced due to patient adaptation

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