Ablation catheter positioning system

Details Ablation catheter positioning system Ablation catheter positioning system

1992-06-30

1994-08-30

Pellegrino, Stephen G.

Surgery

Truss

Pad

606 38, 606 41, 607116, A61B 504

Patent

active

053418077

ABSTRACT:
A multi-electrode cardiac catheter has pairs of electrodes connected to sensing circuitry to produce a differential signal. The sensing output is sharply defined and self-normalizing. Preferably a catheter ablation tip electrode is an electrode of one pair, and the differential signal becomes non-zero when the tip contacts surrounding tissue. The shape of the differential signal provides information on the degree of electrode contact, as well as on the on the amount of locally-sensed tissue impedance change. The signal may be used as a trigger enable signal for a cardiac ablation catheter, and the applied level of RF power may be controlled based on the indicated degree of electrode contact and value of tissue impedance.

REFERENCES:
patent: 4540002 (1985-09-01), Atlas
patent: 4630615 (1986-12-01), Yomtov
patent: 4641649 (1987-02-01), Walinsky et al.
patent: 4721115 (1988-01-01), Owens
patent: 4729385 (1988-03-01), Juncosa et al.
patent: 4785815 (1988-11-01), Cohen
patent: 4905696 (1990-03-01), Amundson et al.
patent: 4911174 (1990-03-01), Penderson
patent: 4945912 (1990-08-01), Langberg
patent: 4947857 (1990-08-01), Albert et al.
patent: 4985028 (1991-01-01), Ismar et al.
patent: 5022396 (1991-06-01), Watanabe
patent: 5025794 (1991-06-01), Albert et al.
patent: 5078714 (1992-01-01), Katims et al.
patent: 5109870 (1992-05-01), Silny et al.
patent: 5121750 (1992-06-01), Katims
patent: 5156151 (1992-10-01), Imran

Affiliated with

Also associated with

Rating

Ablation catheter positioning system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ablation catheter positioning system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ablation catheter positioning system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-24414