[특허]Dynamic lead condition detection for an implantable medical device

[미국특허] Dynamic lead condition detection for an implantable medical device 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61N-001/08 A61N-001/37 A61N-001/36 A61N-001/365 A61N-001/372
출원번호	US-0925749 (2007-10-26)
등록번호	US-8868203 (2014-10-21)
발명자 / 주소	Armstrong, Randolph K.
출원인 / 주소	Cyberonics, Inc.
대리인 / 주소	Cyberonics, Inc.
인용정보	피인용 횟수 : 0 인용 특허 : 190

초록 ▼

A method, apparatus, and system for perform dynamic detection of a lead condition associated with a lead assembly in an implantable medical device that provides a controlled current therapeutic electrical signal to a cranial nerve. A pulsed therapeutic electrical signal is provided to a portion of a patient's body. A multiplicity of feedback signals is provided. Each the signal in the multiplicity comprises a voltage signal associated with the lead assembly for a pulse in the pulsed therapeutic electrical signal. For each the feedback signal, a determination is made as to whether the voltage signal is below a predetermined threshold to create a multiplicity of voltage signal comparison results. A determination is made as to whether or not a lead condition problem exists based upon the multiplicity of voltage signal comparison results.

대표청구항 ▼

1. A method comprising: providing a therapeutic electrical signal to a lead assembly of an implantable medical device;receiving return signals in response to the therapeutic electrical signal, each return signal comprising a voltage signal associated with the lead assembly for a pulse of the therapeutic electrical signal;determining, based on the return signals, whether a voltage level of a charge device of the implantable medical device is sufficient to generate a controlled-current level of the therapeutic electrical signal;comparing the return signals to a threshold range;asserting a feedback signal for each return signal outside the threshold range; anddetermining that a lead condition problem exists when the feedback signal is asserted and the voltage level of the charge device is sufficient to generate the controlled-current level of the therapeutic electrical signal. 2. The method of claim 1, wherein the feedback signal includes a voltage low signal when the return signal associated with a particular pulse is below the threshold range and wherein the feedback signal includes a voltage high signal when the return signal for the particular pulse is above the threshold range. 3. The method of claim 1, further comprising determining that the lead condition problem indicates a lead break when the feedback signal indicates an impedance associated with the lead assembly is above a threshold. 4. The method of claim 1, further comprising determining that the lead condition problem indicates a lead short when the feedback signal indicates an impedance associated with the lead assembly is below a threshold. 5. The method of claim 1, wherein the threshold range comprises a first range above a predicted lead voltage and a second range below the predicted lead voltage, wherein the predicted lead voltage is based on a desired lead impedance and the controlled-current level of the therapeutic electrical signal. 6. The method of claim 1, further comprising performing assessments of lead health prior to delivery of subsequent therapeutic electrical signals after determining that the lead condition problem exists. 7. The method of claim 1, further comprising storing data related to the feedback signal, wherein the data includes a time stamp associated with the feedback signal. 8. The method of claim 1, further comprising acquiring patient activity data; and in response to the feedback signal being asserted at a particular time, storing data related to the feedback signal and the patient activity data associated with the particular time. 9. The method of claim 8, further comprising comparing the patient activity data and the data related to the feedback signal at the particular time with corresponding patient activity data and feedback signal data associated with a second particular time when the feedback signal was asserted; and identifying one or more activities common to the particular time and the second particular time. 10. A method comprising: providing a pulsed therapeutic electrical signal to a lead assembly of an implantable medical device;measuring a voltage across leads of the lead assembly responsive to each pulse of the pulsed therapeutic electrical signal;determining, based on the voltage across the leads of the lead assembly responsive to a particular pulse, whether a voltage level of a charge device of the implantable medical device is sufficient to generate a controlled-current level of the pulsed therapeutic electrical signal;asserting a feedback signal when the voltage corresponding to the particular pulse of the pulsed therapeutic electrical signal is outside a threshold range; anddetermining that a lead condition problem exists when the feedback signal is asserted and the voltage level of the charge device is sufficient to generate the controlled-current level of the pulsed therapeutic electrical signal. 11. The method of claim 10, further comprising storing data associated with the feedback signal. 12. The method of claim 10, further comprising determining that the lead condition problem indicates a lead short when the feedback signal indicates an impedance above a threshold. 13. The method of claim 10, wherein the threshold range comprises a first range above a predicted lead voltage and a second range below the predicted lead voltage, wherein the predicted lead voltage is based on a desired lead impedance and the controlled-current level of the pulsed therapeutic electrical signal. 14. The method of claim 10, wherein the feedback signal is a voltage low signal when the voltage corresponding to the particular pulse is below the threshold range and wherein the feedback signal is a voltage high signal when the voltage corresponding to the particular pulse is above the threshold range. 15. The method of claim 10, further comprising acquiring physiological data; and in response to the feedback signal being asserted at a particular time, storing data related to the feedback signal and the physiological data associated with the particular time. 16. The method of claim 15, further comprising comparing the data related to the feedback signal and the physiological data at the particular time with corresponding physiological data and feedback data associated with a second particular time when the feedback signal was asserted; and identifying one or more physiological conditions common between the particular time and the second particular time. 17. A non-transitory computer-readable medium comprising instructions executable by a processor to: cause a pulsed therapeutic electrical signal to be applied to a lead assembly of an implantable medical device;determine, based on a measured voltage across leads of the lead assembly responsive to a particular pulse of the pulsed therapeutic electrical signal, whether a voltage level of a charge device of the implantable medical device is sufficient to generate a controlled-current level of the pulsed therapeutic electrical signal;assert a feedback signal when the measured voltage corresponding to the particular pulse of the pulsed therapeutic electrical signal is outside a threshold range; anddetermine that a lead condition problem exists when the feedback signal is asserted and the voltage level of the charge device is sufficient to generate the controlled-current level of the pulsed therapeutic electrical signal. 18. The non-transitory computer-readable medium of claim 17, wherein the feedback signal is a voltage low signal when the measured voltage corresponding to the particular pulse is below the threshold range and wherein the feedback signal is a voltage high signal when the measured voltage corresponding to the particular pulse is above the threshold range. 19. The non-transitory computer-readable medium of claim 17, wherein the threshold range comprises a first range above a predicted lead voltage and a second range below the predicted lead voltage, wherein the predicted lead voltage is based on a desired lead impedance and the controlled-current level of the pulsed therapeutic electrical signal. 20. The non-transitory computer-readable medium of claim 17, further comprising instructions executable by the processor to determine that the lead condition problem indicates a lead break when the feedback signal indicates an impedance associated with the lead assembly is above a threshold. 21. The non-transitory computer-readable medium of claim 17, further comprising instructions executable by the processor to determine that the lead condition problem indicates a lead short when the feedback signal indicates an impedance associated with lead assembly is below a threshold.

이 특허에 인용된 특허 (190) 인용/피인용 타임라인 분석

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Franchi Pierre (Vitry/Seine FRX), Probe for cardiac pacemaker.
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Gord John C., Programmable current output stimulus stage for implantable device.
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Ng,Richard; Lopez,Salvador; Khair,Mohammad; Ghaem,Sanjar; Olson,William L., Programmable wireless electrode system for medical monitoring.
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MacDonald, Stuart G., Pulse width cardiac pacing apparatus.
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MacDonald,Stuart G., Pulsewidth electrical stimulation.
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Rick S. Schallhorn ; Gary W. King ; Gregory A. Hrdlicka, Selective activation of electrodes within an inplantable lead.
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Varrichio Anthony J. (Flanders NJ) Winstrom William L. (Andover NJ) Stanislaw Henry (Blairstown NJ), Simultaneous radio frequency and magnetic field microprocessor reset circuit.
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Erickson, John H.; Drees, Scott F., Spinal cord stimulation lead with an anode guard.
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Lauro B. Reno, Stimulation lead connector.
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Archer, Stephen T.; Pless, Benjamin D., Stimulation signal generator for an implantable device.
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Terry ; Jr. Reese S. (Houston TX), Strain relief tether for implantable electrode.
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Loeb Gerald E. (Clarksburg MD), Surgically implantable electrode for nerve bundles.
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Snell Jeffery D. ; Konopka Jeffrey D., System and method for ambulatory monitoring and programming of an implantable medical device.
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Paul A. Levine, System and method for automatically selecting electrode polarity during sensing and stimulation.
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Koopman Jan (Dieren NLX), System and method for determining indicated pacemaker replacement time based upon battery impedance measurement.
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Morgan Wayne A. (Granada Hills CA) Mann Brian M. (Beverly Hills CA), System and method for measuring and storing parametric data pertaining to operating characteristics of an implantable me.
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Dorfmeister Josef ; Frei Mark ; Lerner David ; Osorio Ivan ; Ralston John, System for the prediction, rapid detection, warning, prevention, or control of changes in activity states in the brain o.
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Humphrey Donald R., Systems, methods, and devices for controlling external devices by signals derived directly from the nervous system.
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Larimore Franklin C. (Shoreview MN), T.E.N.S. Electrode.
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Terry ; Jr. Reese S. (Houston TX) Wernicke Joachim F. (League City TX) Baker ; Jr. Ross G. (Houston TX), Therapeutic treatment of migraine symptoms by stimulation.
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Terry ; Jr. Reese S. (Houston TX) Wernicke Joachim F. (League City TX), Therapeutic treatment of sleep disorder by nerve stimulation.
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Plicchi Gianni (Bologna ITX) Ceccarelli Massimo (Cesena ITX), Time sharing multipolar rheography apparatus and method.
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Terry ; Jr. Reese S. ; Baker ; Jr. Ross G. ; Marquette Andre, Treating refractory hypertension by nerve stimulation.
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Terry, Jr., Reese S.; Adkins, Robert A.; Barrett, Burke T., Treatment of congestive heart failure and autonomic cardiovascular drive disorders.
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Wernicke Joachim F. (League City TX) Terry ; Jr. Reese S. (Houston TX), Treatment of dementia by nerve stimulation.
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Cohen, Ehud; Gross, Yossi, Treatment of disorders by unidirectional nerve stimulation.
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Wernicke Joachim F. (League City TX) Terry ; Jr. Reese S. (Houston TX) Baker ; Jr. Ross G. (Houston TX), Treatment of eating disorders by nerve stimulation.
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Wernicke Joachim F. (League City TX) Terry ; Jr. Reese S. (Houston TX) Baker ; Jr. Ross G. (Houston TX), Treatment of eating disorders by nerve stimulation.
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Terry ; Jr. Reese S. (Houston TX) Baker ; Jr. Ross G. (Houston TX) Marquette Andre (Stamford CT), Treatment of motility disorders by nerve stimulation.
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Barrett, Burke T.; Terry, Jr., Reese S., Treatment of movement disorders by near-diaphragmatic nerve stimulation.
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Barrett, Burke T.; Terry, Jr., Reese S., Treatment of neuropsychiatric disorders by near-diaphragmatic nerve stimulation.
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Wernicke Joachim F. (League City TX) Terry ; Jr. Reese S. (Houston TX) Zabara Jacob (Philadelphia PA), Treatment of neuropsychiatric disorders by nerve stimulation.
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Barrett, Burke T.; Roslin, Mitchell S., Treatment of obesity by bilateral sub-diaphragmatic nerve stimulation.
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Barrett, Burke; Reddy, Ramish K.; Roslin, Mitchell S., Treatment of obesity by bilateral vagus nerve stimulation.
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Rutecki Paul (Houston TX) Wernicke Joachim F. (League City TX) Terry ; Jr. Reese S. (Houston TX), Treatment of pain by vagal afferent stimulation.
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Wernicke Joachim F. (League City TX) Terry ; Jr. Reese S. (Houston TX) Baker ; Jr. Ross G. (Houston TX), Treatment of patients in coma by nerve stimulation.
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Hrdlicka, Gregory A.; Skime, Robert, Trial neuro stimulator with lead diagnostics.
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Osorio,Ivan; Bhavaraju,Naresh C., Unitized electrode with three-dimensional multi-site, multi-modal capabilities for detection and control of brain state changes.
상세보기
Ivan Osorio ; Mark G. Frei, Vagal nerve stimulation techniques for treatment of epileptic seizures.
상세보기
Osorio, Ivan; Frei, Mark G., Vagal nerve stimulation techniques for treatment of epileptic seizures.
상세보기
Osorio, Ivan; Frei, Mark G., Vagal nerve stimulation techniques for treatment of epileptic seizures.
상세보기
Osorio, Ivan; Frei, Mark G., Vagal nerve stimulation techniques for treatment of epileptic seizures.
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Osorio, Ivan; Frei, Mark G., Vagal nerve stimulation techniques for treatment of epileptic seizures.
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Caparso, Anthony; Scheiner, Avram, Vascularly stabilized peripheral nerve cuff assembly.
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Baker ; Jr. Ross G. (Houston TX), Voice suppression of vagal stimulation.
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Schulman Joseph H. (Santa Clarita CA) Gord John C. (Venice CA) Strojnik Primoz (Granada Hills CA) Whitmoyer David I. (Los Angeles CA) Wolfe James H. (Canyon Country CA), Voltage/current control system for a human tissue stimulator.
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Yuuchi Takahiro (Hyogo JPX) Tsuchida Yasuyuki (Hyogo JPX) Fujiwara Masakatsu (Kasai JPX), Wireless low-frequency medical treatment device with pulse interruption based upon electrode contact with the body.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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[미국특허] Dynamic lead condition detection for an implantable medical device 원문보기

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[미국특허] Dynamic lead condition detection for an implantable medical device 원문보기

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