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Simplified defibrillator output circuit    

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United States Patent7389139   
Link to this pagehttp://www.wikipatents.com/7389139.html
Inventor(s)Ostroff; Alan H. (San Clemente, CA)
AbstractHigh side driver circuitry for a defibrillator circuit employs respective capacitors connected to respective gates of silicon controlled rectifiers serving as high side switches. Applying a voltage pulse to a selected capacitor turns on the associated SCR. Positive turn-on of the high side SCRs is insured by inserting a constant current source into the low side activation current path at start-up.
   














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Inventor     Ostroff; Alan H. (San Clemente, CA)
Owner/Assignee     Cameron Health, Inc. (San Clemente, CA)
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Publication Date     June 17, 2008
Application Number     11/224,331
PAIR File History     Application Data   Transaction History
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Litigation
Filing Date     September 12, 2005
US Classification     607/5 607/4
Int'l Classification    
Examiner     Layno; Carl
Assistant Examiner     Morales; Jon-Eric
Attorney/Law Firm     Pramudji; Ari Pramudji Wendt & Tran, LLP
Address
Parent Case     CROSS-REFERENCE TO CO-PENDING AND RELATED APPLICATIONS This application is a continuation of U.S. application Ser. No. 10/011,957, filed Nov. 5, 2001, now U.S. Pat. No. 6,954,670, the entire disclosure of which is incorporated herein by reference. The invention of present application may find use in systems such as are disclosed in the U.S. application Ser. No. 09/663,607, filed Sep. 18, 2000 and entitled "SUBCUTANEOUS ONLY IMPLANTABLE CARDIOVERTER-DEFIBRILLATOR AND OPTIONAL PACER," now U.S. Pat. No. 6,721,597; and U.S. application Ser. No. 09/663,606, filed Sep. 18, 2000 and entitled "UNITARY SUBCUTANEOUS ONLY IMPLANTABLE CARDIOVERTER-DEFIBRILLATOR AND OPTIONAL PACER," now U.S. Pat. No. 6,647,292, the disclosures of which are incorporated herein by reference. Applications related to the foregoing applications include U.S. application Ser. No. 09/940,283, filed Aug. 27, 2001 and entitled "DUCKBILL-SHAPED IMPLANTABLE CARDIOVERTER-DEFIBRILLATOR CANISTER AND METHOD OF USE," now U.S. Pat. No. 7,065,407; U.S. application Ser. No. 09/940,371, filed Aug. 27, 2001 and entitled "CERAMICS AND/OR OTHER MATERIAL INSULATED SHELL FOR ACTIVE AND NON-ACTIVE S-ICD CAN," now U.S. Pat. No. 7,039,465; U.S. application Ser. No. 09/940,468, filed Aug. 27, 2001 and entitled "SUBCUTANEOUS ELECTRODE FOR TRANSTHORACIC CONDUCTION WITH IMPROVED INSTALLATION CHARACTERISTICS," now abandoned; U.S. application Ser. No. 09/941,814, filed Aug. 27, 2001 and entitled `SUBCUTANEOUS ELECTRODE WITH IMPROVED CONTACT SHAPE FOR TRANSTHORACIC CONDUCTION," now abandoned; U.S. application Ser. No. 09/940,356, filed Aug. 27, 2001 and entitled "SUBCUTANEOUS ELECTRODE FOR TRANSTHORACIC CONDUCTION WITH HIGHLY MANEUVERABLE INSERTION TOOL," now abandoned; U.S. application Ser. No. 09/940,340, filed Aug. 27, 2001 and entitled "SUBCUTANEOUS ELECTRODE FOR TRANSTHORACIC CONDUCTION WITH LOW-PROFILE INSTALLATION APPENDAGE AND METHOD OF DOING SAME," now U.S. Pat. No. 6,937,907; U.S. application Ser. No. 09/940,287, filed Aug. 27, 2001 and entitled "SUBCUTANEOUS ELECTRODE FOR TRANSTHORACIC CONDUCTION WITH INSERTION TOOL," now abandoned; U.S. application Ser. No. 09/940,377, filed Aug. 27, 2001 and entitled "METHOD OF INSERTION AND IMPLANTATION OF IMPLANTABLE CARDIOVERTER-DEFIBRILLATOR CANISTERS," now U.S. Pat. No. 6,866,044; U.S. application Ser. No. 11/219,024, filed Sep. 5, 2005 and entitled "CANISTER DESIGNS FOR IMPLANTABLE CARDIOVERTER-DEFIBRILLATORS;" U.S. application Ser. No. 09/940,373 and entitled `RADIAN CURVE-SHAPED IMPLANTABLE CARDIOVERTER-DEFIBRILLATOR CANISTER," now U.S. Pat. No. 6,788,974; U.S. application Ser. No. 09/940,273 and entitled "CARDIOVERTER-DEFIBRILLATOR HAVING A FOCUSED SHOCKING AREA AND ORIENTATION THEREOF," now U.S. Pat. No. 7,069,080; U.S. application Ser. No. 09/940,378, filed Aug. 27, 2001 and entitled "ANTI-BRADYCARDIA PACING FOR A SUBCUTANEOUS IMPLANTABLE CARDIOVERTER-DEFIBRILLATOR," now U.S. Pat. No. 7,146,212; and U.S. application Ser. No. 09/940,266, filed Aug. 27, 2001 and entitled "BIPHASIC WAVEFORM FOR ANTI-TACHYCARDIA PACING FOR A SUBCUTANEOUS IMPLANTABLE CARDIOVERTER-DEFIBRILLATOR," now U.S. Pat. No. 6,856,835; the disclosures of which applications are all incorporated herein by reference.
Priority Data    
USPTO Field of Search     607/4 607/5 607/9 607/14
Patent Tags     simplified defibrillator output circuit
   
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