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CURRENT MANAGEMENT SYSTEM FOR A STIMULATION OUTPUT STAGE OF AN IMPLANTABLE NEUROSTIMULATION SYSTEM
专利权人:
Inc.;NeuroPace
发明人:
Stephen T. ARCHER
申请号:
US14843785
公开号:
US20150375000A1
申请日:
2015.09.02
申请国别(地区):
US
年份:
2015
代理人:
摘要:
A current management system for use in the stimulation output stage of a neurostimulation system can be programmed to steer different amounts of current through different stimulation electrodes to vary how strongly the tissue adjacent each electrode is stimulated during a particular programmed stimulation episode. An stimulation electrode drive circuit associated with each electrode that is available for stimulation allows independent control of the flow of current through that electrode. A reference electrode is provided in the circuit to source or sink current as necessary to balance the currents going into and out of the patient, so that no stimulation electrode is required to serve that purpose. More specifically, by configuring the circuit to maintain a constant potential at the reference electrode (e.g., a potential that is approximately half way between a top and bottom voltage rail), the reference electrode will source or sink currents as necessary to cause the net current flow into the patient to be equal to the net current flowing out of the patient, thus satisfying Kirchhoff's current law.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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