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특허 상세정보

System and method for measuring battery current

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) A61N-001/378    A61N-001/08   
미국특허분류(USC) 607/029; 607/002
출원번호 US-0395983 (2003-03-25)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Schwegman, Lundberg, Woessner &
인용정보 피인용 횟수 : 21  인용 특허 : 80
초록

Systems, devices and methods are provided for measuring battery current. According to one aspect, a medical device is provided that comprises a battery, a pulse generator, and a current measuring device. The pulse generator draws a pulse generator current from the power source, and the current measuring device determines the pulse generator current or tracks charge depletion from the battery. The current measuring device comprises an oscillator and a counter. The oscillator produces an oscillating output with a frequency of oscillation dependent on the p...

대표
청구항

1. A battery-powered medical device, comprising:circuitry to be powered by and draw current from a battery to provide medical therapy; a current measurement circuit to measure the current drawn from the battery; and means to calibrate the current measuring circuit when the current measurement circuit is measuring the current drawn from the battery. 2. The device of claim 1, wherein:the current measurement circuit includes means to select a first current source or a second current source to charge an oscillator, wherein both the first and second current s...

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  7. Gandhi, Rajesh Krishan; Linder, William J.; Lyden, Michael J.; Stessman, Nicholas J.; Kelly, Jonathan H.; Kalgren, James. Dynamic battery management in an implantable device. USP2011118055343.
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  21. Davis, Jon P.; Goetz, Steven M.; Torgerson, Nathan A.; Singal, Ashish; Davenport, Lynn A.; Sahasrabudhe, Rajeev M.; Gokaldas, Shyam; Anderson, Joel A.; Perz, Leroy L.; Straka, Scott E.. User interface for optimizing energy management in a neurostimulation system. USP20190210204706.