Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Patent
1996-12-13
1998-09-01
Getzow, Scott M.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
A61N 1368
Patent
active
058004670
ABSTRACT:
In a pacing system, the pacing controller induces the leads to deliver an impedance measurement pulse to the right ventricle of the heart at at least a 15 ms interval during a window of time following detection of the R-wave or the delivery of a pacing pulse. The window of time corresponds to a period of ventricular ejection. The two or three measured impedance values are then used to determine an impedance slope that has a strong biological correlation to the contractility of the heart. The impedance slope is then used by the controller of the pacing system to adjust the delivery of pacing pulses for purposes such as maximizing contractility for a given AV delay, PV delay and pacing rate of pacing pulses.
REFERENCES:
patent: 4733667 (1988-03-01), Olive et al.
patent: 5224475 (1993-07-01), Berg et al.
patent: 5361776 (1994-11-01), Samuelson et al.
patent: 5385576 (1995-01-01), Noren et al.
patent: 5447521 (1995-09-01), Anderson et al.
patent: 5507780 (1996-04-01), Finch
patent: 5553611 (1996-09-01), Budd et al.
patent: 5562712 (1996-10-01), Steinhaus et al.
Schaldach, M., "Intracardiac Impedance to Determine Sympathetic Activity in Rate Responsive Pacing", PACE, vol. 15, Part II, pp. 1778-1786, (Nov. 1992).
Bornzin Gene A.
Bradley Kerry
Florio Joseph J.
Park Euljoon
Getzow Scott M.
Pacesetter Inc.
LandOfFree
Cardio-synchronous impedance measurement system for an implantab does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cardio-synchronous impedance measurement system for an implantab, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cardio-synchronous impedance measurement system for an implantab will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-264955