Claims
- 1. A catheter ablation system, comprising:
- an elongated catheter body having a distal segment;
- at least one electrode, extending along said distal segment;
- a plurality of temperature sensors, arranged along said distal segment, adjacent said at least one electrode and providing outputs indicative of temperature;
- a power source means for providing a power output to said at least one electrode; and
- temperature processing means, coupled to said outputs of said temperature sensors and to said power source, for controlling power output from said power source to said at least one electrode as a function of said outputs of said plurality of temperature sensors, wherein said temperature processing means comprises means for comparing temperatures indicated by outputs of said temperature sensors to a known temperature and means for disabling subsequent use of the output of a said sensor to control said power output, if the output of said sensor differs from said known temperature by more than a defined value.
- 2. A system according to claim 1 wherein said defined temperature is normal body temperature.
- 3. A catheter ablation system, comprising:
- an elongated catheter body having a distal segment;
- at least one electrode, extending along said distal segment;
- a plurality of temperature sensors, arranged along said distal segment, adjacent said at least one electrode and providing outputs indicative of temperature;
- a power source means for providing a power output to said at least one electrode; and
- temperature processing means, coupled to said outputs of said temperature sensors and to said power source, for controlling power output from said power source to said at least one electrode as a function of said outputs of said plurality of temperature sensors, wherein said temperature processing means comprises means for monitoring rates of change of temperatures indicated by outputs of said temperature sensors to a defined rate of change and means for disabling subsequent use of the output of a said sensor to control said power output, if the rate of change of the output of said sensor differs from said defined rate of change by more than a defined value.
- 4. An ablation power supply, comprising:
- input means for receiving outputs of a plurality of temperature sensors indicative of temperature;
- a power source means for providing a power output to at least one ablation electrode;
- temperature processing means, coupled to said input means and to said power source, for controlling power output from said power source to said at least one electrode as a function of said outputs of said plurality of temperature sensors, wherein said temperature processing means comprises means for comparing temperatures indicated by outputs of said temperature sensors to a known temperature and means for disabling subsequent use of the output of a said sensor to control said power output, if the output of said sensor differs from said known temperature by more than a defined value.
- 5. A system according to claim 4 wherein said defined temperature is normal body temperature.
- 6. An ablation power supply, comprising:
- input means for receiving outputs from a plurality of temperature sensors indicative of temperature;
- a power source means for providing a power output to at least one ablation electrode; and
- temperature processing means, coupled to said input means and to said power source, for controlling power output from said power source to said at least one electrode as a function of said outputs of said plurality of temperature sensors, wherein said temperature processing means comprises means for monitoring rates of change of temperatures indicated by outputs of said temperature sensors to a defined rate of change and means for disabling subsequent use of the output of a said sensor to control said power output, if the rate of change of the output of said sensor differs from said defined rate of change by more than a defined value.
Parent Case Info
This application is a division of application Ser. No. 08/613,298, filed Mar. 11, 1996, now U.S. Pat. No. 5,755,760.
US Referenced Citations (17)
Foreign Referenced Citations (4)
Number |
Date |
Country |
0617916 |
Oct 1994 |
EPX |
0605796 |
Jan 1996 |
EPX |
9411059 |
May 1994 |
WOX |
9510322 |
Apr 1995 |
WOX |
Non-Patent Literature Citations (2)
Entry |
Cox et al, "A review of Surgery for Atrial Fibrillation", Journal of Cardiovascular Electrophysiology, vol. 2, No. 6, Dec. 1991 p. 541. |
Feld et al., "Radiofrequency Catheter Ablation for the Treatment of Human Type 1 Atrial Flutter", Circulation, vol. 86, No. 4, Oct. 1992 p. 1233. |
Divisions (1)
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Number |
Date |
Country |
Parent |
613298 |
Mar 1996 |
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