Surgery – Truss – Pad
Patent
1983-09-14
1985-10-29
Kamm, William E.
Surgery
Truss
Pad
A61N 136
Patent
active
045495483
ABSTRACT:
A pacemaker system incorporates an implantable pacemaker and a plurality of electrodes, electrodes preferably being on a pacing lead for a single chamber pacemaker, or a pair of such leads for a dual chamber pacemaker. Programmable connection means are provided for connecting the pacemaker output to a selected combination of lead electrodes, the selection being changed during each pacer cycle to optimize the choice of unipolar and bipolar operation for given pacemaker events. In one mode, the system employs bipolar QRS sensing and unipolar pacing and T-wave sensing. In another mode, the system employs bipolar QRS sensing and pacing, and unipolar T-wave sensing.
REFERENCES:
patent: 3825015 (1974-07-01), Berkovits
patent: 3920024 (1975-11-01), Bowers
patent: 4228303 (1980-10-01), Rickards
patent: 4402322 (1983-09-01), Duggan
patent: 4424812 (1984-01-01), Lesnick
"Bipolar Versus Unipolar Issues in DDD Pacing"; Ross G. Baker, Jr. and Eric N. Falkenberg, Nov.-Dec. 1984, Pace, Part II, vol. 7, pp. 1178-1182.
"Long-Term Comparison of Unipolar and Bipolar Pacing and Sensing Using a New Multiprogrammable Pacemaker System", Pace, vol. 6, May-Jun. 1983, Part I.
Boute Willem
Wittkampf Frederik H. M.
Kamm William E.
Vitafin N.V.
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