Cryogenic catheter

Details Cryogenic catheter Cryogenic catheter

1992-06-15

1994-01-25

Aschenbrenner, Peter A.

Surgery

Instruments

Cyrogenic application

606 21, 606 23, 606 25, A61B 1736

Patent

active

052812154

ABSTRACT:
The invention provides a catheter for ice mapping and ablation and a method of ablation using the catheter. The catheter includes at least two lumens for circulating a refrigerating fluid adjacent an ablation device located at the end of a catheter. The refrigerated ablation device is used to chill a localized region of myocardial tissue, thereby permitting the resulting change in electrical activity to be determined. In response to the test results, the ablation device may be used to make a lesion in the myocardial tissue to correct a cardiac arrhythmia. In one embodiment, the ablation device is an electrode which uses radio frequency energy to ablate the myocardial tissue. Alternatively, the ablation device is an electrode adapted for direct current ablation. In another embodiment, the electrode is replaced with an optical fiber in communication with a laser which uses the laser's light energy to ablate tissue. Yet another embodiment is a cryogenic catheter, useful for cooling tissue for other applications, for use as combined or separate mapping and ablation devices, or for use with the ice mapping and ablation means of the present invention. The embodiments may include provisions for steering the catheter and for stabilizing the ablation device at the proposed lesion site.

REFERENCES:
patent: 3272203 (1966-09-01), Chato
patent: 3393679 (1968-07-01), Crump et al.
patent: 3425419 (1969-02-01), Dato
patent: 3512531 (1970-05-01), Crump et al.
patent: 3524446 (1970-08-01), Crump et al.
patent: 3548829 (1970-12-01), Reynolds et al.
patent: 3664344 (1972-05-01), Bryne
patent: 3823718 (1974-07-01), Tromovitch
patent: 3859986 (1975-01-01), Okada et al.
patent: 3910277 (1975-10-01), Zimmer
patent: 3948269 (1976-04-01), Zimmer
patent: 3971383 (1976-07-01), van Gerven
patent: 4022215 (1977-05-01), Benson
patent: 4029102 (1977-06-01), Barger
patent: 4275734 (1981-06-01), Mitchiner
patent: 4278090 (1981-07-01), van Gerven
patent: 4377168 (1983-03-01), Rzasa et al.
patent: 4406656 (1983-09-01), Hattler et al.
patent: 4519389 (1985-05-01), Gudkin et al.
patent: 4601705 (1986-07-01), McCoy
patent: 4641649 (1987-02-01), Walinsky et al.
patent: 4770171 (1988-09-01), Sweren et al.
patent: 4819630 (1989-04-01), De Hart
patent: 4832024 (1989-05-01), Boussignac et al.
patent: 4860744 (1989-08-01), Johnson et al.
patent: 4899741 (1990-02-01), Bentley et al.
patent: 4934340 (1990-06-01), Ebling et al.
patent: 5041973 (1991-08-01), Lebrow et al.
patent: 5056517 (1991-10-01), Fenici
patent: 5108390 (1992-04-01), Potocky et al.
patent: 5147355 (1992-09-01), Friedman et al.
patent: 5151096 (1992-09-01), Khoury
patent: 5161539 (1992-11-01), Evans et al.
The annals of Thoracic Surgery--"Surgical Repair of Wolff-Parkinson-White Syndrome: A New Closed-Heart Technique" by Gerard M. Guiraudon, M.D., et al., vol. 37, No. 1, Jan. 1984, pp. 67-71.
The Journal of Thoracic and Cardiovascular Surgery--"Transannular Cryoablation of Ventricular Tachycardia" by Gerald M. Lawrie, M.D., et al., vol. 98, No. 6, Dec. 1989.
European Heart Journal (1988) "Cryosurgery for Ventricular Bigeminy Using a Transaortic Closed Ventricular Approach" by F. E. E. Vermeulen, et al., pp. 979-990.
"Transvenous Cryoablation of the Bundle of HIS" by Paul C. Gillett, et al., vol. 14, Apr. 1991, pp. 504-510.

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-724781