[특허]Implantable device for delivering cardiac drug therapy

Implantable device for delivering cardiac drug therapy 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61N-001/00 A61N-005/04
출원번호	US-0425263 (2006-06-20)
등록번호	US-8275456 (2012-09-25)
발명자 / 주소	Girouard, Steven D. Zhu, Qingsheng
출원인 / 주소	Cardiac Pacemakers, Inc.
대리인 / 주소	Schwegman Lundberg & Woessner, P.A.
인용정보	피인용 횟수 : 0 인용 특허 : 175

초록 ▼

An implantable medical device in which an electrogram is recorded and analyzed in order to detect changes indicative of cardiac ischemia. Cardiac ischemia may be detected by recording an electrogram from a sensing channel of the device and comparing the recorded electrogram with a reference electrog

대표청구항 ▼

1. An implantable cardiac device, comprising: a sense amplifier for receiving an electrogram signal from an electrode;circuitry for storing a reference electrogram;circuitry configured to record an electrogram received by the sense amplifier and to detect a change in the recorded electrogram indicative of cardiac ischemia by comparing the recorded electrogram with the reference electrogram, wherein the circuitry is further configured to perform the comparison by passing the recorded electrogram through a matched filter that cross-correlates the recorded electrogram with the reference electrogram;a minute ventilation sensor for measuring a patient's respiratory rate;a drug delivery apparatus for delivering a quantity of a cardiac drug; and,circuitry configured to actuate the drug delivery apparatus and further configured to initiate drug delivery only if both of the following conditions are met: 1) cardiac ischemia is detected from the recorded electrogram, and 2) the measured respiratory rate is above a specified threshold. 2. The device of claim 1 wherein the drug delivery apparatus includes a catheter. 3. The device of claim 2 wherein the drug delivery apparatus includes a drug reservoir and a pump for pumping a quantity of drug into a lumen of the catheter. 4. The device of claim 3 further comprising a header and wherein the pump and drug reservoir are located in the header of the device. 5. The device of claim 1 wherein the circuitry configured to detect a change in the recorded electrogram quantifies the degree of ischemia and further wherein the circuitry configured to cause delivery of a cardiac drug does so only when the degree of ischemia is above a programmable threshold value. 6. The device of claim 1 wherein the cardiac drug is a thrombolytic drug. 7. The device of claim 1 further comprising an accelerometer for measuring a patient's activity level and wherein the circuitry configured to actuate the drug delivery apparatus does so only if the measured activity level is below a specified threshold value. 8. The device of claim 1 further comprising a pulse generator for delivering pacing pulses and wherein the circuitry configured to record an electrogram is configured to record an evoked response to a pacing pulse. 9. A method for operating a cardiac device implanted in a patient, comprising: sensing intrinsic cardiac activity;recording an electrogram from the sensed cardiac activity;detecting cardiac ischemia by comparing the recorded electrogram with a reference electrogram, wherein the comparison is performed by passing the recorded electrogram through a matched filter that cross-correlates the recorded electrogram with the reference electrogram;measuring the patient's respiratory rate; and,delivering a cardiac drug and initiating cardiac drug delivery only if both of the following conditions are met: 1) cardiac ischemia is detected from the recorded electrogram, and 2) the measured respiratory rate is above a specified threshold. 10. The method of claim 9 further comprising delivering the cardiac drug through a catheter. 11. The method of claim 10 further comprising pumping the cardiac drug from a reservoir. 12. The method of claim 11 wherein the reservoir is located in a header of the cardiac device. 13. The method of claim 9 further comprising quantifying the degree of ischemia and delivering a cardiac drug only when the degree of ischemia is above a programmable threshold value. 14. The method of claim 9 wherein the cardiac drug is a thrombolytic drug. 15. The method of claim 9 further comprising: measuring the patient's activity level; and,delivering a cardiac drug only when an ischemic condition is detected from the recorded electrogram and the measured activity level is below a specified threshold value. 16. The method of claim 9 wherein the recorded electrogram is an evoked response to a pace.

이 특허에 인용된 특허 (175)

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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

연합인증

Implantable device for delivering cardiac drug therapy 원문보기

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대표청구항 ▼

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연합인증

Implantable device for delivering cardiac drug therapy 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

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이 특허에 인용된 특허 (175)

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IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

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