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특허 상세정보

Cardiac pacer with battery consumption monitor circuit

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) A61N-001/36   
미국특허분류(USC) 128/419.PT; 320/048; 340/636
출원번호 US-0710531 (1985-03-12)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Lockwood, Alex, FitzGibbon & Cummings
인용정보 피인용 횟수 : 102  인용 특허 : 5
초록

A battery powered implantable cardiac pacer includes a battery consumption monitor circuit which develops within an internal counter a cumulative count of battery consumption in milliampere hours. The consumption count may be read out to an external indicator by a multiplex circuit to provide to the user an indication of battery life remaining. An over-current feature within the monitor circuit provides an alarm signal in the event that battery consumption exceeds a predetermined maximum level.

대표
청구항

1. A battery-operated implantable pacer comprising, in combination: pacer circuit means operable from a unidirectional current source for supplying pacing pulses to a pacer lead; means including a battery for supplying unidirectional current to said pacer circuit means; current sensing means coupled between said battery and said pacer circuit means for developing a demand signal indicative of the current being drawn from said battery; oscillator means responsive to said demand signal for developing a plurality of pulses each indicative of the consu...

이 특허를 인용한 특허 피인용횟수: 102

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