Adaptive control module and implantable nerve stimulation system possessing the adaptive control module
A self-adaptive control and nerve stimulation technology, applied in the field of implantable medical treatment, can solve the problems of easy calculation inaccurate, electrical neutrality imbalance, invalid and so on
Inactive Publication Date: 2017-09-22
SCENERAY
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Problems solved by technology
[0021] However, during the clinical application of implanting in patients for several years, there will be changes in battery voltage in constant voltage stimulation, current changes in constant current stimulation, or semiconductor process changes and other parasitic parameters between chips. and so on will lead to electrical neutral imbalance, which will cause the formula (4) to be invalid
[0022] In addition, in figure 2 Among them, the typical stimulation waveform is a rectangular pulse or a trapezoidal pulse. For pulses with arbitrary waveforms, the calculation of the formula will be very complicated, and the calculation is easy to be inaccurate.
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[0043] The present invention will be described in detail below in conjunction with specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.
[0044] One embodiment of the present invention provides an implantable nerve stimulation system (refer to figure 1 ).
[0045] combine image 3 , the implantable neurostimulation system includes a stimulation unit 200 and an adaptive control module 100 .
[0046] The stimulating part 200 includes a plurality of stimulating electrode contacts 20 and corresponding capacitors 21 .
[0047]Here, the stimulating electrode contact 20 takes two adjacent stimulating electrode contacts AE1 and AE2 as an example, the impedance between the two stimulating electrode contacts AE1 and AE2 can be 1kΩ, and the capa...
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The invention discloses an adaptive control module and an implantable nerve stimulation system possessing the adaptive control module. The implantable nerve stimulation system comprises a stimulation portion. The control module comprises a stimulation unit, a neutralization unit and a control unit. The stimulation unit is used for generating negative charge variation so as to provide a negative stimulation for the stimulation portion. The neutralization unit is used for generating positive charge variation so as to provide positive stimulation for the stimulation portion. In a predetermined stimulation period, the control unit is used for controlling output of the neutralization unit and / or the stimulation unit so that an absolute value of the negative charge variation is equal to an absolute value of the positive charge variation. The module and the system have advantages that (1) the control unit introduced in the invention can realize electric neutrality balance through controlling the output of the neutralization unit and / or the stimulation unit; (2) aiming at an arbitrary stimulation waveform, electric neutrality balance can be guaranteed; and (3) the module and the system are suitable for the electric neutrality balance in clinic constant voltage stimulation and constant current stimulation.
Description
technical field [0001] The invention relates to the field of implantable medical treatment, in particular to an adaptive control module and an implantable nerve stimulation system with the same. Background technique [0002] Implantable medical systems have been more and more widely used in clinical medicine in recent years, usually including implantable neurostimulation systems (including deep brain stimulation system DBS, implantable cerebral cortex stimulation system CNS, implantable spinal cord stimulation Systemic stimulation SCS, implantable sacral nerve stimulation system SNS, implantable vagus nerve stimulation system VNS, etc.), implantable cardiac stimulation system (commonly known as cardiac pacemaker), implantable drug infusion system (IDDS), etc. [0003] Implantable neurostimulation systems such as figure 1 As shown, it usually includes the following components: several stimulating electrode contacts 30 (here, the left brain electrode contacts and right brain ...
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IPC IPC(8): A61N1/372A61N1/08A61N1/36
CPCA61N1/08A61N1/3605A61N1/36128A61N1/372
Inventor 陈方雄李彩俊葛娇姣
Owner SCENERAY