An assembly for delivering optical signals comprising a nuclear magnetic resonance system comprised of magnets, an NMR programmable logic unit, a signal input channel, and a command output channel; an optical interface assembly electrically connected to the nuclear magnetic resonance system, the opt
An assembly for delivering optical signals comprising a nuclear magnetic resonance system comprised of magnets, an NMR programmable logic unit, a signal input channel, and a command output channel; an optical interface assembly electrically connected to the nuclear magnetic resonance system, the optical interface assembly comprising a first laser modulated so as to produce laser optical signals, an interface optical to electrical signal convertor; and a catheter assembly connected to said optical interface assembly, the catheter assembly comprising a proximal end, a distal end, a fiber optic cable assembly, an electronics assembly disposed at the distal end comprised of a catheter electrical to optical signal convertor and a catheter optical to electrical signal convertor, and a first receiving coil disposed at the distal end.
대표청구항▼
We claim: 1. An assembly for delivering optical signals comprising a nuclear magnetic resonance system comprised of a magnet, an NMR programmable logic unit, a signal input channel, and a command output channel; an optical interface assembly electrically connected to said nuclear magnetic resonance
We claim: 1. An assembly for delivering optical signals comprising a nuclear magnetic resonance system comprised of a magnet, an NMR programmable logic unit, a signal input channel, and a command output channel; an optical interface assembly electrically connected to said nuclear magnetic resonance system, said optical interface assembly comprising a first laser modulated so as to produce laser optical signals, an interface optical to electrical signal convertor; and a catheter assembly connected to said optical interface assembly, said catheter assembly comprising a proximal end, a distal end, a fiber optic cable assembly, an electronics assembly disposed at said distal end comprised of a catheter electrical to optical signal convertor and a catheter optical to electrical signal convertor, and a first receiving coil disposed at said distal end, wherein: a. said NMR programmable logic unit of said nuclear magnetic resonance system sends command signals through said command output channel to said optical interface assembly for use in modulating said first laser; b. said laser optical signals received through said fiber optic cable assembly from said first laser are converted into catheter electrical signals by said catheter optical to electrical signal convertor; c. said first receiving coil is adapted to receive electromagnetic signals and deliver coil electrical signals to said electronics assembly of said catheter assembly; d. said coil electrical signals are converted by said catheter electrical to optical signal convertor to catheter optical signals and said catheter optical signals are delivered through said fiber optic cable assembly to said interface optical to electrical signal convertor; and e. said catheter optical signals are converted by said interface optical to electrical signal convertor into interface electrical signals and are delivered said signal input channel of said nuclear magnetic resonance system. 2. The assembly as recited in claim 1, wherein said optical interface assembly further comprises an interface programmable logic unit adapted to receive said command signals from said command output channel of said nuclear magnetic resonance system and to perform said modulating said first laser based upon said command signals. 3. The assembly as recited in claim 1, wherein said electronics assembly of said catheter assembly further comprises a switch for blocking or permitting the passage of said coil electrical signals to said catheter electrical to optical signal convertor. 4. The assembly as recited in claim 3, wherein said switch is opened by the delivery of light resulting from said modulating said first laser to said catheter optical to electrical signal convertor, said delivery of said light resulting from said modulating said first laser. 5. The assembly as recited in claim 4, wherein said assembly further comprises a second receiving coil, and wherein said switch is a multi-state switch used to select which of said first or second receiving coils provides said coil electrical signal to said electronics assembly of said catheter assembly based upon said modulating said first laser. 6. The assembly as recited in claim 1, wherein said catheter electrical to optical signal convertor further comprises a reference signal source. 7. The assembly as recited in claim 1, wherein said electronics assembly of said catheter assembly further comprises a detuning assembly adapted to change the resonance frequency of said first receiving coil. 8. The assembly as recited in claim 7, wherein said detuning assembly is operated in response to said command signals from said nuclear magnetic resonance system. 9. The assembly as recited in claim 7, wherein said electronics assembly of said catheter assembly further comprises a switch, and said detuning assembly further comprises at least one capacitor for which its capacitance changes with the application of a potential difference to said switch. 10. The assembly as recited in claim 9, wherein said switch is operated in response to said command signals from said nuclear magnetic resonance system. 11. The assembly as recited in claim 9, wherein said capacitance of said at least one capacitor is changed in response to said command signals from said nuclear magnetic resonance system. 12. The assembly as recited in claim 7, wherein said receiving coil further comprises a single inductive loop coil, and a tuning capacitor. 13. The assembly as recited in claim 12, wherein the capacitance of said tuning capacitor is changed in response to said command signals from said nuclear magnetic resonance system. 14. The assembly as recited in claim 7, wherein said electronics assembly of said catheter further comprises a command extraction component for filtering a detuning command to said detuning assembly. 15. The assembly as recited in claim 1, wherein said first receiving coil is selected from the group consisting of a pickup coil, a single loop coil, a multi-loop coil, a loopless antenna, and a dipole antenna. 16. The assembly as recited in claim 1, wherein said first laser provides electrical power to said electronics assembly of said catheter and control signals to said electronics assembly of said catheter. 17. The assembly as recited in claim 16, wherein said catheter optical to electrical signal convertor is comprised of a photovoltaic cell that converts light from said first laser into electrical power. 18. The assembly as recited in claim 1, wherein said optical interface assembly further comprises a second laser, and wherein said first laser generates optical command signals to said electronics assembly of said catheter and said second laser generates optical power for use by said electronics assembly of said catheter. 19. The assembly as recited in claim 18, wherein said catheter optical to electrical signal convertor is comprised of a photovoltaic cell that converts light from said second laser into electrical power. 20. The assembly as recited in claim 1, wherein said laser optical signals are comprised of digital optical signals. 21. The assembly as recited in claim 1, wherein said catheter optical signals are digital optical signals.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (279)
Swanson, David K.; McGee, David; Panescu, Dorin; Whayne, James G.; TenHoff, Harm, Ablation and imaging catheter.
Bournay, Jr., Frederick M.; Giurtino, Joel F., Adapter for converting a metal encapsulated implantable cardiac pacer to an externally worn cardiac pacer.
Sun Weimin ; Abshire Pamela A. ; Panken Eric J. ; Combs William J., Adaptive and morphological system for discriminating P-waves and R-waves inside the human body.
Wolf William D. ; Fraley Mary A. ; Seifried Lynn M. ; Hoch Ronald F., Adhesively- and solder-bonded capacitive filter feedthrough for implantable medical devices.
Robicsek Francis (Charlotte NC) Morency Richard P. (Rock Hill SC), Apparatus and method for activating a pump in response to optical signals from a pacemaker.
Warman Eduardo N. ; Hill Michael R. S. ; Peterson David K. L. ; Mehra Rahul ; Mongeon Luc R., Apparatus for treating atrial tachy arrhythmias with synchronized shocks.
Seifried Lynn M. ; Lessar Joseph F. ; Wolf William D. ; Fraley Mary A. ; Tidemand Kevin K. ; Engmark David B. ; Hoch Ronald F. ; Wiklund Craig L., Capacitive filter feedthrough for implantable medical device.
Hemming Michael Todd ; Peck Bradley C. ; Blow Brian A. ; Morrison Scott M. ; Schuelke Robert John, Capture detection circuit for pulses and physiologic signals.
Moore Thomas C. ; Williams Eric ; White David A. ; Mamayek Donald S. ; Masters Donald ; Belef Martin ; Soursa Veijo, Catheter assembly with distal end inductive coupler and embedded transmission line.
Stevenson Robert A. ; Haskell Donald K. ; Brendel Richard L. ; Woods Jason ; Louder Mike, Chip capacitors and chip capacitor electromagnetic interference filters.
Budgifvars Goran,SEX ; Bergstrom Inga,SEX, Combined magnetic field detector and activity detector employing a capacitive sensor, for a medical implant.
Stoop Gustaaf A. P.,NLX ; Wohlgemuth Werner P.,DEX ; Westendorp Hendrikus A.,NLX, Dual chamber pacemaker with single pass lead and with bipolar and unipolar signal processing capability.
Tsitlik Joshua E. (Reisterstown MD) Levin Howard (Cockeysville MD) Halperin Henry (Baltimore MD) Weisfeldt Myron (Baltimore MD), ECG amplifier and cardiac pacemaker for use during magnetic resonance imaging.
Morris ; Sr. G. Ronald ; Morris ; Jr. G. Ronald ; Valentine James W., Electrocardiograph sensor and sensor control system for use with magnetic resonance imaging machines.
Bowers William J. (Aurora CO) Hardwick Phillip D. (Aurora CO), Electrosurgical generator with high-frequency pulse width modulated feedback power control.
Heil John E. ; Heil ; Jr. Ronald W. ; Scheiner Avram ; Lin Yayun ; Bye Lyle A. ; Lattuca J. John,GBX, Endocardial lead having defibrillation and sensing electrodes with septal anchoring.
Edwards Stuart ; Gaiser John ; Utley David ; West Scott ; Chin Jay, Expandable electrode assemblies for forming lesions to treat dysfunction in sphincters and adjoining tissue regions.
Shelton Michael B. (Minneapolis MN) Starkson Ross O. (Woodbury MN) Schmidt Craig L. (Eagan MN) Markowitz H. Toby (Roseville MN), Fault-tolerant elective replacement indication for implantable medical device.
Shelton Michael B. (Minneapolis MN) Starkson Ross O. (Woodbury MN) Schmidt Craig L. (Eagan MN) Markowitz H. Toby (Roseville MN), Fault-tolerant elective replacement indication for implantable medical device.
Fenner Andreas A. ; Larson Lary R. ; Greeninger Daniel R. ; Thompson David L., Feedthrough assembly for implantable medical devices and methods for providing same.
Prohaska Otto J. (2065 Hanover Dr. Cleveland Heights OH 44112), Fiber optic sensing device including pressure detection and human implantable construction.
Lurie Keith G. ; Blanc Jean Jacques,FRX ; Benditt David G. ; Starks Daniel J., Guiding introducer for introducing medical devices into the coronary sinus and process for using same.
Smith Stephen W. ; Light Edward D. ; Fiering Jason O. ; Blaker David M. ; Hruschka Thomas A., Imaging probes and catheters for volumetric intraluminal ultrasound imaging and related systems.
Chen Paris Chuan (Walnut CA) Darbidian Dro (Tujunga CA) Yang Min-Yaug (Monterey Park CA) Katz Samuel M. (Los Angeles CA), Implantable cardiac stimulation device having an improved backup mode of operation and method thereof.
Baker ; Jr. Ross G. (Houston TX) Calfee Richard V. (Houston TX) Haluska Edward A. (Angleton TX) Whistler Stephen J. (Lake Jackson TX), Implantable cardiac stimulator with automatic gain control and bandpass filtering in feedback loop.
Thacker James R. (Lake Jackson TX) Weinberg Alvin H. (Moorpark CA) Moaddeb Shahram (West Hills CA), Implantable lead for sensing a physiologic parameter of the body.
Jorgenson David J. ; Starkson Ross O. ; McVenes Rick D. ; Trautmann Charles D. ; Wahlstrand John D. ; Peck Bradley C., Implantable lead functional status monitor and method.
Wu Steven Z. ; Harish Sameer ; Sanders-Millare Deborra ; Guruwaiya Judy A., Implantable medical device having protruding surface structures for drug delivery and cover attachment.
Truex Buehl E. (Glendora CA) Gibson Scott R. (Granada Hills CA) Weinberg Alvin H. (Moorpark CA), Implantable medical device having shielded and filtered feedthrough assembly and methods for making such assembly.
Schnall Mitchell D. (Lansdowne PA) Lenkinski Robert E. (Drexel Hill PA) Kressel Herbert Y. (Wynnewood PA) Pollack Howard M. (Cheltenham PA), Intracavity probe and interface device for MRI imaging and spectroscopy.
Schnall Mitchell D. (Lansdowne PA) Lenkinski Robert E. (Drexel Hill PA) Kressel Herbert Y. (Wynnewood PA) Pollack Howard M. (Cheltenham PA) Claiborne Theodore C. (Gibsonia. all of PA) Misic George J., Intracavity probe and interface device for MRI imaging and spectroscopy.
Walinsky Paul (Philadelphia PA) Lewin Peter A. (Wyndmoor PA) Reid John M. (Strafford PA), Intravascular, ultrasonic imaging catheters and methods for making same.
Allred ; III Jimmie B. ; Holdren ; III Earl R. ; Belstadt Jack A. ; Mozeko Charles L. ; Mott Richard W. ; Mallon Jeffrey B. ; Wutz Philip S. ; Pyszczek Michael F., Laryngoscope having low magnetic susceptibility and method of assembling.
Daikuzono Norio,JPX ; Hoek John Vanden ; Cook Kenneth P. ; Bross Robert, Laser catheter apparatus for use in arteries or other narrow paths within living organisms.
Kruse John M. (Columbia Heights MN), Low amplitude pacing artifact detection amplifier circuit with driven right leg for filtering high frequency noise cause.
Ward Kevin R. (Columbus OH) Brown Charles G. (Columbus OH) Dzwonczyk Roger R. (Columbus OH), Mechanical adjunct to cardiopulmonary resuscitation (CPR), and an electrical adjunct to defibrillation countershock, car.
Avellanet Francisco J., Medical devices incorporating at least one element made from a plurality of twisted and drawn wires at least one of the wires being a nickel-titanium alloy wire.
Jascob, Bradley; Simon, David; Kessman, Paul; Smith, Aaron, Method and apparatus for electromagnetic navigation of a surgical probe near a metal object.
Tearney Guillermo ; Boppart Stephen A. ; Bouma Brett E. ; Brezinski Mark ; Swanson Eric A. ; Fujimoto James G., Method and apparatus for performing optical measurements using a fiber optic imaging guidewire, catheter or endoscope.
Kraska Robert E. ; Merritt Donald R. ; Schmidt Craig L. ; Skarstad Paul M., Method and system for evaluating an electrochemical cell for use with an implantable medical device.
Koskenmaki David C. (St. Paul MN) Calhoun Clyde D. (Stillwater MN) Tucker Pamela S. (Austin TX) Lambert ; Jr. Robert L. (Georgetown TX), Method of forming metal fiber mat/polymer composite.
Atalar Ergin (Columbia MD) Bottomley Paul A. (Columbia MD) Zerhouni Elias A. (Baltimore MD), Method of internal magnetic resonance imaging and spectroscopic analysis and associated apparatus.
Hemming Michael Todd ; Peck Bradley C. ; Blow Brian A. ; Morrison Scott M. ; Schuelke Robert John, Microprocessor capture detection circuit and method.
Hemming Michael Todd ; Peck Bradley C. ; Blow Brian A. ; Morrison Scott M. ; Schuelke Robert John, Microprocessor capture detection circuit and method.
Hemming Michael Todd ; Peck Bradley C. ; Blow Brian A. ; Morrison Scott M. ; Schuelke Robert John, Microprocessor capture detection circuit and method.
Atalar Ergin ; Lestio Jeffrey C. ; Charles ; Jr. Harry K. ; Carkhuff Bliss G. ; Bottomley Paul A., Miniature magnetic resonance catheter coils and related methods.
Miesel Keith A. ; Roberts Jonathan P. ; Olson John C. ; LaFond Roger ; Chatelle Brenda ; Stetz Eric M., Multiple sensor assembly for medical electric lead.
Fayram Timothy A. (Gilroy CA) Benedict George J. (Santa Cruz CA), Optical blood flow measurement apparatus and method and implantable defibrillator incorporating same.
Jacobson Peter (4 ; Route de Marienthal 67500 Haguenau FRX) Kroiss Daniel (22 ; Rue Georges Clemenceau 67590 Schweighouse-Moder FRX) Ostroff Alan (21 ; Rue de l\Eglise 67250 Preuschdorf FRX), Optically isolated shock circuit for implantable defibrillator.
Byland James K. (St. Paul MN) DeFranco Michael D. (Andover MN) Hooper William J. (Lake Elmo MN) Sikorski James M. (Moundsview MN) Thompson David L. (Fridley MN), Pacemaker.
Barcel James E. (Simi Valley CA) Weinberg Alvin H. (Moorpark CA) Moaddeb Shahram (Woodland Hills CA) Thacker James R. (Lake Jackson TX), Pacemaker lead for sensing a physiologic parameter of the body.
Stoop Gustaaf A. P.,NLX ; Smit Josephus P. A.,NLX ; Van Dam Peter,NLX, Pacemaker system with inhibition of AV node for rate regulation during atrial fibrillation.
Allred ; III Jimmie B. ; Holdren ; III Earl R. ; Mott Richard W. ; Mozeko Charles L. ; Belstadt Jack A. ; Mallon Jeffrey B. ; Wutz Philip ; Pyszczek Michael F., Penlight having low magnetic susceptibility.
Pons Pascal (Crolles FRX) Molin Renzo Dal (Chatillon FRX), Protection against electromagnetic perturbations of external origin for a active implantable device.
Bonnet Jean-Luc,FRX ; Limousin Marcel,FRX, Rate responsive active implantable medical device such as a pacemaker, defibrillator and/or cardiovertor, including the multisite type.
Anderson Russell E. (Marine on St. Croix MN) Reinke James D. (Maple Grove MN) Vadnais Kirk S. (Roseville MN) Hudrlik Terrence R. (Fridley MN), Ring-to-ring cardiac electrogram pacemaker.
Grundy David A. (Fremont CA) Packard Brian M. (Monticello MN) Warner Glen G. (Morgan Hill CA), Steering mechanism for catheters and methods for making same.
Hinshaw Waldo S. (Solana Beach CA) Paulson Douglas N. (Del Mar CA) Buchanan David S. (Escondido CA) Hirschkoff Eugene C. (Leucadia CA) DiIorio Mark S. (San Diego CA) Black ; Jr. William C. (Del Mar C, Superconducting biomagnetometer with inductively coupled pickup coil.
Paulson Douglas N. (Del Mar CA) Buchanan David S. (San Diego CA) Hirschkoff Eugene C. (Leucadia CA) DiIorio Mark S. (San Diego CA) Black ; Jr. William C. (Del Mar CA), Superconducting biomagnetometer with remote pickup coil.
Imburgia Michael (1602 Grey Owl Ct. Louisville KY 40223) Pool George E. (3812 Hycliffe Ave. Louisville KY 40207), Transesophageal probe having simultaneous pacing and echocardiographic capability, and method of diagnosing heart diseas.
de La Chapelle Michael (Canoga Park CA) Hsu Hui-Pin (Canoga Park CA), Ultra-high speed light activated microwave switch/modulation using photoreactive effect.
Metzger William T. (1760 Cass Ct. Libertyville IL 60048) Jadvar Hossein (c/o Medical Computer Laboratory University of Michigan ; 4421 EECS Bldg. Ann Arbor MI 48109-2122), Variable stiffness esophageal catheter.
Hulbert, Anthony Peter, Wireless magnetic resonance imaging upconversion stage with a paramagnetic amplifier and delay line converting RF signals to microwave signals.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.