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1. 发明专利

JP2006272028A Pacemaker 有权
标题翻译：起搏器
公开(公告)号：JP2006272028A
公开(公告)日：2006-10-12
申请号：JP2006199245
申请日：2006-07-21
申请人： Medtronic Inc , メドトロニック・インコーポレーテッド
发明人： HESS MICHAEL F , MARKOWITZ H TOBY , BUSACKER JAMES W
IPC分类号： A61N1/368 , A61N1/362
CPC分类号： A61N1/3627 , A61N1/3682
摘要： PROBLEM TO BE SOLVED: To provide a pacemaker including an adjusting means for automatically adjusting ventricle atrial refractory period (PVARP) between heart rates.
SOLUTION: This pacemaker includes the adjusting means for automatically adjusting PVARP between heart rates, and retains a value to 2:1 block point and an interval value corresponding to the 2:1 block point, and also AV interval value, wherein the adjusting means includes a means for determining the 2:1 block point to the sequence between the given heart rates; and means for setting the PVARP equal to an interval value obtained by subtracting one of the AV interval values from the interval value corresponding to the 2:1 block point.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种起搏器，其包括用于自动调节心率之间的心室心房不应期（PVARP）的调节装置。解决方案：该起搏器包括用于在心率之间自动调节PVARP的调节装置，并且将值保持为2：1的阻挡点和对应于2：1阻挡点的间隔值，以及AV间隔值，其中调整装置包括用于确定给定心率之间的序列的2:1块的装置; 以及用于将PVARP设置为等于通过从对应于2：1块点的间隔值中减去一个AV间隔值而获得的间隔值的装置。版权所有（C）2007，JPO＆INPIT

2. 发明专利

DE69630912D1 未知
公开(公告)号：DE69630912D1
公开(公告)日：2004-01-08
申请号：DE69630912
申请日：1996-09-13
申请人： MEDTRONIC INC
发明人： HESS MICHAEL F , MARKOWITZ H TOBY
IPC分类号： A61N1/368 , A61N1/362

3. 发明专利

CA2204615C ADAPTIVE SEARCH AV AND AUTO PVARP ADAPTATION TO SAME WITH ADDITIONAL BENEFIT 未知
公开(公告)号：CA2204615C
公开(公告)日：2003-10-07
申请号：CA2204615
申请日：1996-08-23
申请人： MEDTRONIC INC
发明人： MARKOWITZ H TOBY , BUSACKER JAMES W , HESS MICHAEL F
IPC分类号： A61N1/368 , A61N1/362
摘要： An AV search method and apparatus is taught with some variation described. It allows a pacemaker to find the appropriate AV interval so as to avoid pacing in the ventricle when it is not necessary, even if there is intermittent AV conduction in the patient. Also, an adaptive PVARP method and apparatus is disclosed that allows the PVARP and AV interval to be adjusted together automatically.

4. 发明专利

CA2205374C MODIFICATION OF PACEMAKER TACHY RESPONSE BASED ON FFRW SENSING 未知
公开(公告)号：CA2205374C
公开(公告)日：2003-09-09
申请号：CA2205374
申请日：1996-08-16
申请人： MEDTRONIC INC
发明人： JURAN CARLEEN J , HESS MICHAEL F , BUSACKER JAMES W , MARKOWITZ H TOBY
IPC分类号： A61N1/362 , A61N1/368
摘要： A pacemaker control method and apparatus for determining the presence of atrial tachyarrhythmias uses a true interval value and compares it to a predetermined tachy value. The true interval value is updat ed based on the presence of far field R waves in PVARP that meet certain sequencing criteria. The criteria selected allows the control method and apparatus to reduce or eliminate event sequences that will generate false positive tachy detection and subsequent mode switching, while still allowing for the detection of tachy events in PVARP.

5. 发明专利

AU2996497A Arrhythmia and fibrillation prevention pacemaker using consistent pacing 未知
公开(公告)号：AU2996497A
公开(公告)日：1997-11-26
申请号：AU2996497
申请日：1997-05-05
申请人： MEDTRONIC INC
发明人： MEADOR JOHN T , HESS MICHAEL F , HILL MICHAEL R S , MEAD R HARDWIN
IPC分类号： A61N1/368 , A61N1/362

6. 发明专利

CA2204603A1 PACEMAKER TACHY DETERMINATION BASED ON 2:1 SENSING 未知
公开(公告)号：CA2204603A1
公开(公告)日：1997-04-03
申请号：CA2204603
申请日：1996-09-13
申请人： MEDTRONIC INC
发明人： HESS MICHAEL F , MARKOWITZ H TOBY
IPC分类号： A61N1/368 , A61N1/362 , A61N1/37
摘要： Some false tachy detection prevention algorithms miss blocked 2:1 sensing and therefore miss some true tachy situations. Here an algorithm that uses sensed far field R waves to determine whether to search for blocked 2:1 sensing is implemented and a search algorithm is also described.

7. 发明专利

CA2219748A1 METHOD AND APPARATUS FOR VARIABLE RATE CARDIAC STIMULATION 未知
公开(公告)号：CA2219748A1
公开(公告)日：1996-12-27
申请号：CA2219748
申请日：1996-06-04
申请人： MEDTRONIC INC
发明人： HESS MICHAEL F , STROEBEL JOHN C , MARKOWITZ H TOBY
IPC分类号： A61N1/365 , A61N1/362 , A61N1/368
摘要： A method and apparatus for variable rate cardiac stimulation is disclosed, wherein sudden drops in the rate of delivery of stimulation pulses are avoided by means of rate smoothing and peak rate support functions. In one embodiment, circuitry in a cardiac pulse generator detects atrial events and maintains an updated value of the A-A time intervals between certain atrial events. If the preset ratio or total of these A-A intervals are found to have been shorter than the updated value by at least a predetermined amount of time, a rate smoothing function is activated wherein the rate of delivery of stimulating pulses is prevented from changing, from cycle to cycle, by more than a predetermined maximum amount. A peak rate support function preferably employs the same updated value in the computation of "escape" intervals. Following the latest A-A interval, if that A-A interval is less than the updated value, then the updated value is used as the new escape interval. If the latest A-A interval is greater than or equal to the updated value but less than the previous updated value, the current escape interval is used as the new escape interval. If the latest A-A interval is less than both the previous updated volume and the current updated value, the ¢current! value updated is used as the new escape interval, and the pulse generator enters a decay mode wherein the escape interval is gradually and incrementally lengthened to prevent sudden changes in the rate of delivery of stimulation pulses.

8. 发明专利

CA2525378A1 USE OF ACCELEROMETER SIGNAL TO AUGMENT VENTRICULAR ARRHYTHMIA DETECTION 未知
公开(公告)号：CA2525378A1
公开(公告)日：2004-11-25
申请号：CA2525378
申请日：2004-05-10
申请人： MEDTRONIC INC
发明人： HESS MICHAEL F , GEBHARDT URSULA
IPC分类号： A61N1/362 , A61N1/365
摘要： A system and method for detecting and discriminating atrial arrhythmias base d on mechanical signals of cardiac wall motion and electrical signals of cardi ac depolarizations. A mechanical event rate determined from sensed mechanical events is used to corroborate an electrical event rate determined from sense d EGM or ECG signals to classify the heart rhythm. If the event rates are not correlated, other parameterized data from the mechanical signal and electric al signal are evaluated to detect evidence of an arrhythmia. If electrical and mechanical event data do not corroborate a common arrhythmia condition, electrical and mechanical sensing parameters may be adjusted.

9. 发明专利

AU2002366813A8 Cardiac pacing method and system 未知
公开(公告)号：AU2002366813A8
公开(公告)日：2003-07-09
申请号：AU2002366813
申请日：2002-12-20
申请人： MEDTRONIC INC
发明人： RITSCHER DAVID , BROWN MARK L , SHETH NIRAV V , HESS MICHAEL F , MEHRA RAHUL , WARMAN EDUARDO N
IPC分类号： A61N1/365 , A61N1/362 , A61N1/39

10. 发明专利

CA2470877A1 CARDIAC PACING METHOD AND SYSTEM 未知
公开(公告)号：CA2470877A1
公开(公告)日：2003-07-03
申请号：CA2470877
申请日：2002-12-20
申请人： MEDTRONIC INC
发明人： SHETH NIRAV V , BROWN MARK L , RITSCHER DAVID , WARMAN EDUARDO N , MEHRA RAHUL , HESS MICHAEL F
IPC分类号： A61N1/365 , A61N1/362 , A61N1/39
摘要： The invention relates to the use of atrial pacing therapies to treat atrial tachycardia (AT). When an AT episode is detected, an implantable medical device applies an ATP therapy. If the AT episode persists, the ATP therapy may be automatically reapplied at a later time during the course of the same AT episode. In particular, previously used ATP therapies are reapplied when episodic conditions, such as cycle length or cycle regularity , change. Although a particular ATP therapy initially may be unsuccessful in terminating the AT, it may prove successful when the cycle length or regularity of the atrial rhythm changes. As the rhythm slows down, the AT ma y be more responsive to ATP therapies that were previously unsuccessful. As a result, potentially efficacious ATP therapies can be reapplied to terminate AT episodes, and reduce the number of episodes that require more aggressive termination by painful, atrial shocks.

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