Inventor · disambiguated record
Christer Ekwall
Also filed as: EKWALL CHRISTER
22 granted patents·2,260 citations·filing 1980–1999
97Inventor score
Top patents by PatentIndex Score
22 records- 0192US4899750ALead impedance scanning system for pacemakersSIEMENS PACESETTER·Filed 1988·Granted Feb 13, 1990·272 cites·32 claims
- 0285US6584351B1Implantable cardiac stimulator with circuitry for removing noise in sensed electrical signalsPACESETTER AB·Filed 1999·Granted Jun 24, 2003·235 cites·7 claims
- 0385US6314323B1Heart stimulator determining cardiac output, by measuring the systolic pressure, for controlling the stimulationPACESETTER AB·Filed 1999·Granted Nov 6, 2001·225 cites·12 claims
- 0484US6016443AImplantable ischemia detector and implantable stimulator employing samePACESETTER AB·Filed 1998·Granted Jan 18, 2000·207 cites·19 claims
- 0578US6264606B1Ischemia detectorPACESETTER AB·Filed 1998·Granted Jul 24, 2001·236 cites·20 claims
- 0678US6233486B1Ischemia detector and heart stimulator provided with such an ischemia detectorPACESETTER AB·Filed 1998·Granted May 15, 2001·198 cites·23 claims
- 0775US6256538B1Implantable heart stimulatorPACESETTER AB·Filed 1998·Granted Jul 3, 2001·205 cites·17 claims
- 0868US5016634AImplantable medical device with means for telemetric transmission of dataSIEMENS AG·Filed 1990·Granted May 21, 1991·124 cites·9 claims
- 0964US4827934ASensing margin detectors for implantable electromedical devicesSIEMENS PACESETTER·Filed 1987·Granted May 9, 1989·83 cites·20 claims
- 1063US5824016AMedical device used to stimulate tissuePACESETTER AB·Filed 1997·Granted Oct 20, 1998·88 cites·14 claims
- 1163US5578067AMedical electrode system having a sleeve body and control element therefor for selectively positioning an exposed conductor areaPACESETTER AB·Filed 1995·Granted Nov 26, 1996·92 cites·36 claims
- 1263US5193538AIn vivo implantable medical device with battery monitoring circuitrySIEMENS AG·Filed 1990·Granted Mar 16, 1993·99 cites·13 claims
- 1362US6246909B1Implantable cardiac stimulator wherein the pacing rate is controlled dependent on variations in the spontaneous intervalPACESETTER AB·Filed 1997·Granted Jun 12, 2001·85 cites·7 claims
- 1440US6591143B1Bending sensor for an implantable lead and a heart stimulator with a lead having such a sensorPACESETTER AB·Filed 1998·Granted Jul 8, 2003·27 cites·12 claims
- 1539US5541507ADevice for detecting the position of a magnet by analyzing movement of a current-fed coil disposed in the magnetic field of the magnetPACESETTER AB·Filed 1993·Granted Jul 30, 1996·6 cites·14 claims
- 1637US5424642AMagnetic field detector with a resiliently mounted electrical coilSIEMENS AG·Filed 1993·Granted Jun 13, 1995·20 cites·12 claims
- 1736US5683427AElectrophysiological stimulator with variable stimulation pulsePACESETTER AB·Filed 1996·Granted Nov 4, 1997·17 cites·46 claims
- 1835US5571164ACardiac electrode device having at least a portion thereof which is ribbon shapedPACESETTER AB·Filed 1995·Granted Nov 5, 1996·14 cites·19 claims
- 1934US5423866AConstant charge pacemakerSIEMENS AG·Filed 1993·Granted Jun 13, 1995·15 cites·8 claims
- 2032US5601614AMethod and device for determining whether electrical signals in a heart are caused by an atrial depolarizationPACESETTER AB·Filed 1994·Granted Feb 11, 1997·8 cites·16 claims
- 2130US5413109AElectrocardiographic apparatus for analyzing the function of a heart and for pacing the heart dependent on the analysisSIEMENS ELEMA AB·Filed 1993·Granted May 9, 1995·1 cites·12 claims
- 2229US4388928ASignal processing means particularly for heart pacemakersSIEMENS AG·Filed 1980·Granted Jun 21, 1983·3 cites·5 claims
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