최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0120922 (2002-04-11) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 196 인용 특허 : 268 |
An optical sense signal generator for medical device's having a photonic catheter containing optical conductors conducting light energy in two directions between electronics at a catheter proximal end and electrical stimulation and sensing components at a catheter distal end. An optical unit receive
An optical sense signal generator for medical device's having a photonic catheter containing optical conductors conducting light energy in two directions between electronics at a catheter proximal end and electrical stimulation and sensing components at a catheter distal end. An optical unit receives light delivered from the catheter proximal end and transmits a first portion of the light while diverting a second portion of the light. The transmitted light is fed to an opto-electrical converter for conversion into electrical stimulation signals. The diverted light is directed to one or more optical modulators that modulate the diverted light output under an applied electrical signal. An electrical circuit generates electrical sense signals corresponding to one or more sensed physiological conditions and provides the signals to the optical modulator(s). This results in modulation of the diverted light output into optical sense signals that are transmitted to the catheter proximal end.
An optical sense signal generator for medical device's having a photonic catheter containing optical conductors conducting light energy in two directions between electronics at a catheter proximal end and electrical stimulation and sensing components at a catheter distal end. An optical unit receive
An optical sense signal generator for medical device's having a photonic catheter containing optical conductors conducting light energy in two directions between electronics at a catheter proximal end and electrical stimulation and sensing components at a catheter distal end. An optical unit receives light delivered from the catheter proximal end and transmits a first portion of the light while diverting a second portion of the light. The transmitted light is fed to an opto-electrical converter for conversion into electrical stimulation signals. The diverted light is directed to one or more optical modulators that modulate the diverted light output under an applied electrical signal. An electrical circuit generates electrical sense signals corresponding to one or more sensed physiological conditions and provides the signals to the optical modulator(s). This results in modulation of the diverted light output into optical sense signals that are transmitted to the catheter proximal end. omprises an output current carrying conductor on the integrated circuit substrate and a pair of series-connected inductor coils. 6. The pacing system of claim 5, wherein the monolithic isolated current replicator further comprises a bridge circuit having four magnetically field-sensitive giant magneto-resistive resistors, an operational amplifier having an amplifier input coupled to the bridge circuit and an amplifier output coupled to the output current loop of the monolithic isolated current replicator; and wherein each of the inductor coils in the input current loop of the monolithic isolated current replicator is associated with a respective one of the magnetically field-sensitive giant magneto-resistive resistors in the bridge circuit and each of the inductors in the output current loop of the monolithic isolated current replicator is associated with a respective one of the magnetically field-sensitive giant magneto-resistive resistors in the bridge circuit. 7. The pacing system of claim 4, wherein: the input current loop of the monolithic isolated current replicator comprises an input current carrying conductor on an integrated circuit substrate and first and second magnetic field inducing coils that generate first and second magnetic fields when a current is present in the input current carrying conductor; and the output current loop of the monolithic isolated current replicator comprises a second current carrying conductor on the integrated circuit substrate and third and fourth magnetic field inducing coils that generate third and fourth magnetic fields when a current is present in the output current carrying conductor; and wherein the monolithic isolated current replicator further comprises: an operational amplifier formed on the integrated circuit having first and second amplifier inputs and an amplifier output coupled to said output current loop; a bridge circuit having each of first, second, third and fourth giant magneto-resistive resistors coupled with a respective one of the first, second, third, and fourth magnetic field inducing coils, each giant magneto-resistive resistor having a first resistance in the absence of an applied magnetic field and a second resistance when exposed to a magnetic field generated by a current applied through the magnetic field inducing coil coupled thereto; and a current source coupled to the bridge circuit; and the inputs of the operational amplifier being coupled across the bridge circuit. 8. The pacing system of claim 1, wherein the first lead is adapted for placement in a first heart chamber and the second lead is adapted for placement in a second heart chamber. 9. The pacing system of claim 1, wherein the first lead is one adapted for placement in the right atrium and the second lead is adapted for placement in the left atrium. 10. The pacing system of claim 1, wherein the first lead is adapted for placement in the right ventricle and the second lead is adapted for placement in the left ventricle. 11. The pacing system of claim 1, wherein the first lead is adapted for placement in an atrial heart chamber and the second is adapted for placement in the ventricular heart chamber. 12. The pacing system of claim 1, wherein the monolithic isolated current replicator is formed of a micro-mechanical fabricated (MEMS) isolation transformer comprising low-loss input and output coils separated by an insulation layer that isolates the input coil from the output coil. , 375/220; US-5903834, 19990500, Wallstedt et al., 455/422; US-5970062, 19991000, Bauchot, 370/345; US-6009096, 19991200, Jaisingh et al., 370/395; US-6018521, 20000100, Timbs et al., 370/342; US-6026304, 20000200, Hilsenrath et al., 455/456; US-6028933, 20000200, Heer et al., 380/009; US-6031904, 20000200, An et al., 379/201.02; US-6049593, 20000400, Acampora, 379/056.2; US-6061562, 20000500, Martin et al., 455/431; US-6216000, 20010400, Blumhardt, 455/435; US-6262980, 20010700, Leung et al., 370/336; US-6272334, 20010800, Rao, 455/418; US-6305020, 20011000, Hoarty et al., 725/095; US-6330443, 20011200, Kirby, 455/432; US-6393290, 20020500, Ufongene, 455/446; US-6407997, 20020600, DeNap et al., 370/352; US-6574470, 20030600, Chow et al., 055/417 WO99/041787, WO; WO99/041788, WO; WO99/047970, WO; WO99/053371, WO; WO99/053373, WO; WO99/056171, WO; WO99/059101, WO; WO99/065011, WO; WO99/065012, WO; WO 00/03291, WO; WO 00/03349, WO; WO 00/05704, WO; WO 00/08689, WO; WO 00/10048, WO; WO 00/16189, WO; WO 00/20922, WO; WO 00/20923, WO; WO 00/26761, WO; WO 00/36465, WO; WO 00/36560, WO; WO 00/36666, WO; WO 00/49593, WO; WO 00/54101, WO; WO 00/75720, WO; WO 00/77570, WO; WO 00/77571, WO; WO 01/11424, WO; WO 01/18090, WO; WO 01/40856, WO; WO 01/65309, WO; WO 01/67170, WO; WO 01/86346, WO; WO 02/057843, WO; WO 02/079869, WO
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