Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical energy applicator
Patent
1996-09-20
1998-10-20
Bahr, Jennifer
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical energy applicator
607129, 607130, 128642, A61N 100, A61B 504
Patent
active
058240284
ABSTRACT:
An electrode terminal is described for delivering a stimulation pulse to the heart or other tissues containing a linear array of fibers. The electrode terminal is elongated and adapted for orientation in a direction parallel to the tissue fibers. The device of the present invention further includes a power source for electrically energizing the terminal such that the energization of the terminal reduces the nonuniformity of the transmembrane voltage change in the tissue proximate the electrode which is produced during the stimulation pulse. Nonuniform transmembrane voltage changes are associated with arrhythmic conditions. The linear electrode of the present invention can be used for cardiac pacing, defibrillation, and the termination of tachycardia.
REFERENCES:
patent: 4030509 (1977-06-01), Heilman et al.
patent: 4136702 (1979-01-01), Trabucco
patent: 4628937 (1986-12-01), Hess et al.
patent: 4641656 (1987-02-01), Smits
patent: 4969463 (1990-11-01), Dahl et al.
patent: 5230337 (1993-07-01), Dahl et al.
patent: 5327909 (1994-07-01), Kiser et al.
patent: 5342407 (1994-08-01), Dahl et al.
patent: 5360442 (1994-11-01), Dahl et al.
patent: 5405374 (1995-04-01), Stein
patent: 5425364 (1995-06-01), Imran
patent: 5439485 (1995-08-01), Mar et al.
patent: 5456254 (1995-10-01), Pietroski et al.
Knisley S, Davis C. "Membrane Polarization During Point Stimulation in Perfused Rabbit Hearts," Circulation 90; I-176:1994. (abstract).
Knisley S, Hill B, Ideker R, "Virtual Electrode Effects in Myocardial Fibers," Biophysical Journal 66;719-728: 1994.
Saypol J, Bradley R, "A Mechanism for Anisotropic Reentry in Electrically Active Tissue" Biomedical Engineering and Instrumentation Program, National Center for Research Resources, Nat'l Institute of Health, Bethesda, Maryland.
Wikswo J, Lin S, Abbas R, "Virtual Electrodes in Cardic Tissue: A Common Mechanism for Anodal and Cathodal Stimulation" Biophysical Journal 69:2195-2210: 1995.
Knisley S, "Transmembrane Voltage Changes During Unipolar Stimulation of Rabbit Ventricle" Div. of Cardiovascular Disease of the School of Medicine and Dept. of Biomedical Engineering, University of Alabama Birmingham, accepted Aug. 27, 1995.
Bahr Jennifer
Ruddy David M.
The UAB Research Foundation
LandOfFree
Line electrode oriented relative to fiber direction does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Line electrode oriented relative to fiber direction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Line electrode oriented relative to fiber direction will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-239766