Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Reexamination Certificate
2007-03-13
2007-03-13
Layno, Carl (Department: 3766)
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
C607S027000
Reexamination Certificate
active
11065008
ABSTRACT:
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 pulse generator current, and the counter provides an oscillation count for the oscillating output. The current measuring device is capable of being calibrated while continuously determining the pulse generator current. In one embodiment, the current measuring device includes at least two current sources, each including an operational amplifier that has an autozeroing feature.
REFERENCES:
patent: 3103617 (1963-09-01), Schneider et al.
patent: 3300658 (1967-01-01), Slusher
patent: 4031899 (1977-06-01), Renirie
patent: 4134408 (1979-01-01), Brownlee et al.
patent: 4259639 (1981-03-01), Renirie
patent: 4276883 (1981-07-01), McDonald et al.
patent: 4290429 (1981-09-01), Blaser
patent: 4323075 (1982-04-01), Langer
patent: 4345604 (1982-08-01), Renirie
patent: 4408607 (1983-10-01), Maurer
patent: 4488555 (1984-12-01), Imran
patent: 4548209 (1985-10-01), Wielders et al.
patent: 4556061 (1985-12-01), Barreras et al.
patent: 4606350 (1986-08-01), Frost
patent: 4659994 (1987-04-01), Poljak
patent: 4672973 (1987-06-01), Hofke
patent: 4709202 (1987-11-01), Koenck et al.
patent: 4712179 (1987-12-01), Heimer
patent: 4830006 (1989-05-01), Haluska et al.
patent: 4868908 (1989-09-01), Pless et al.
patent: 4873490 (1989-10-01), Hecht et al.
patent: 4952864 (1990-08-01), Pless et al.
patent: 4958641 (1990-09-01), Digby et al.
patent: 5030849 (1991-07-01), Brokaw
patent: 5083562 (1992-01-01), De Coriolis et al.
patent: 5137020 (1992-08-01), Wayne et al.
patent: 5137021 (1992-08-01), Wayne et al.
patent: 5159520 (1992-10-01), Toyooka et al.
patent: 5184616 (1993-02-01), Weiss
patent: 5265588 (1993-11-01), Nelson et al.
patent: 5285779 (1994-02-01), Cameron et al.
patent: 5323068 (1994-06-01), Freitas
patent: 5369364 (1994-11-01), Renirie et al.
patent: 5370668 (1994-12-01), Shelton et al.
patent: 5391193 (1995-02-01), Thompson
patent: 5402070 (1995-03-01), Shelton et al.
patent: 5411537 (1995-05-01), Munshi et al.
patent: 5424683 (1995-06-01), Takahashi
patent: 5447522 (1995-09-01), Chang et al.
patent: 5458624 (1995-10-01), Renirie et al.
patent: 5483165 (1996-01-01), Cameron et al.
patent: 5488553 (1996-01-01), Renger
patent: 5496353 (1996-03-01), Grandjean et al.
patent: 5527630 (1996-06-01), Nagata et al.
patent: 5528087 (1996-06-01), Sibata et al.
patent: 5540724 (1996-07-01), Cox
patent: 5562595 (1996-10-01), Neisz
patent: 5591213 (1997-01-01), Morgan
patent: 5596987 (1997-01-01), Chance
patent: 5675258 (1997-10-01), Kadouchi et al.
patent: 5690685 (1997-11-01), Kroll et al.
patent: 5700280 (1997-12-01), Silvian
patent: 5713936 (1998-02-01), Staub et al.
patent: 5721482 (1998-02-01), Benvegar et al.
patent: 5741307 (1998-04-01), Kroll
patent: 5749907 (1998-05-01), Mann
patent: 5769873 (1998-06-01), Zadeh
patent: 5772689 (1998-06-01), Kroll
patent: 5779631 (1998-07-01), Chance
patent: 5800472 (1998-09-01), Mann
patent: 5812383 (1998-09-01), Majid et al.
patent: 5869970 (1999-02-01), Palm et al.
patent: 5896423 (1999-04-01), Okamoto
patent: 5897576 (1999-04-01), Olson et al.
patent: 5904705 (1999-05-01), Kroll et al.
patent: 5925068 (1999-07-01), Kroll
patent: 5929601 (1999-07-01), Kaib et al.
patent: 5959371 (1999-09-01), Dooley et al.
patent: 6016488 (2000-01-01), Bosworth et al.
patent: 6018227 (2000-01-01), Kumar et al.
patent: 6045941 (2000-04-01), Milewits
patent: 6108579 (2000-08-01), Snell et al.
patent: 6114838 (2000-09-01), Brink et al.
patent: 6148235 (2000-11-01), Kuiper
patent: 6154675 (2000-11-01), Juran et al.
patent: 6167309 (2000-12-01), Lyden
patent: 6169387 (2001-01-01), Kaib
patent: 6185461 (2001-02-01), Er
patent: 6198253 (2001-03-01), Kurle et al.
patent: 6313609 (2001-11-01), Brink
patent: 6366809 (2002-04-01), Olson et al.
patent: 6400988 (2002-06-01), Gurewitsch
patent: 6472847 (2002-10-01), Lundberg
patent: 6490486 (2002-12-01), Bradley
patent: 6584355 (2003-06-01), Stessman
patent: 6768288 (2004-07-01), Rosenquist et al.
patent: 2002/0167293 (2002-11-01), Ptasinski et al.
patent: 2003/0204219 (2003-10-01), Gielen
patent: 0739645 (1996-10-01), None
Krig, David B., et al., “System and Method for Monitoring or Reporting Battery Status of Implantable Medical Device”,U.S. Appl. No. 10/706,856, filed Nov. 12, 2003, 24 pgs.
Parsonnet, V. , “Cardiac pacing and pacemakers VII. Power sources for implantable pacemakers. Part I.”,American Heart Journal, 94 (4), (Oct. 1977),pp. 517-528.
Ryan, J. G., “A Four Chip Implantable Defibrillator/Pacemaker Chipset”,Proceedings of the IEEE 1989 Custom Integrated Circuits Conference, San Diego, CA,(1989),7.6.1-7.6.4.
Sherman, Don , “Measure resistance and capacitance without an A/D”,Philips Semiconductors Application Note AN449, Philips Semiconductors, Sunnyvale, CA,(Dec. 1993),pp. 2540-2553.
Takeuchi, E. S., et al., “Energy Storage and Delivery”,Implantable Cardioverter Defribrillators: A Comprehensive Textbook, edited by N.A. Mark Estes III et al., (1994),123-132.
Takeuchi, E. S., et al., “Lithium/Silver Vanadium Oxide Batteries for Implantable Defibrillators”,Pace, 11, (Nov. 1988),2035-2039.
Cardiac Pacemakers Inc.
Layno Carl
Schwegman Lundberg Woessner & Kluth P.A.
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