Systems and methods for deriving electrical characteristics of c

Details Systems and methods for deriving electrical characteristics of c Systems and methods for deriving electrical characteristics of c

1994-01-28

1996-02-27

Kamm, William E.

Surgery

Truss

Pad

128642, A61B 504

Patent

active

054940427

ABSTRACT:
Systems and methods examine heart tissue morphology using three or more spaced apart electrodes, at least two of which are located within the heart in contact with endocardial tissue. The systems and methods transmit electrical current through a region of heart tissue lying between selected pairs of the electrodes, at least one of the electrodes in each pair being located within the heart. The systems and methods derive the electrical characteristic of tissue lying between the electrode pairs based, at least in part, upon sensing tissue impedances. The systems and methods arrange the derived tissue electrical characteristics into groups of equal electrical characteristics. The systems and methods display the groups of equal electrical characteristics in spatial relation to the location of the examined tissue regions. The systems and methods make possible the use of multiple endocardial electrodes for taking multiple measurements of the electrical characteristics of heart tissue. Multiplexing can be used to facilitate data processing The systems and methods also make possible the identification of regions of low relative electrical characteristics, indicative of infarcted tissue, without invasive surgical techniques.

REFERENCES:
patent: 4380237 (1983-04-01), Newbower
patent: 4516151 (1985-05-01), Imran
patent: 4522212 (1985-06-01), Gelinas et al.
patent: 4628937 (1986-12-01), Hess et al.
patent: 4674518 (1987-06-01), Salo
patent: 4699147 (1987-10-01), Chilson et al.
patent: 4852580 (1989-08-01), Wood
patent: 4911174 (1990-03-01), Pederson et al.
patent: 5014973 (1991-08-01), Lebron et al.
patent: 5058583 (1991-10-01), Geddes et al.
patent: 5092239 (1992-03-01), Geddes et al.
patent: 5109870 (1992-05-01), Silny et al.
patent: 5137019 (1992-08-01), Pederson et al.
patent: 5195968 (1993-03-01), Lundquist et al.
patent: 5197467 (1993-03-01), Steinhaus et al.
patent: 5224475 (1993-07-01), Berg et al.
patent: 5228442 (1993-07-01), Imran
patent: 5239999 (1993-08-01), Imran
patent: 5246008 (1993-09-01), Mueller
patent: 5255679 (1993-10-01), Imran
patent: 5279299 (1994-01-01), Imran
patent: 5282840 (1994-02-01), Hudrlik
patent: 5293869 (1994-03-01), Edwards et al.
patent: 5297549 (1994-03-01), Beatty et al.
patent: 5309910 (1994-05-01), Edwards et al.
patent: 5313943 (1994-05-01), Houser et al.
patent: 5324284 (1994-06-01), Imran
patent: 5341807 (1994-08-01), Nardella
patent: 5345936 (1994-09-01), Pomeranz et al.
patent: 5383917 (1995-01-01), Desai et al.
patent: 5397339 (1995-03-01), Desai
Myocardial Electrical Impedance Mapping of Ischemic Sheep Hearts and Healing Aneurysms By: Michael A. Fallert, MD et al. pp. 199-207.

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