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US 6,887,234 B2Granted
Cryogenic catheter system
AssigneeCryoCath Technologies Inc.
InventorsMarwan Abboud, Johnny Al Asmar, Jean-Pierre Lalonde
Life of this patent
Estimating the term…
Abstract
A cryogenic catheter system provides safe and effective treatment of tissue. The system includes a catheter that is coupled to a console via fluid and electrical umbilicals. The console controls the overall operation of the system based to provide and maintain a predetermined temperature at the catheter tip. The console also controls and monitors operating parameters for providing warning indications to the user and terminating operation of the system in the event of a failure that may compromise patient safety.
Claims10
A catheter system, comprising:
- a cryogenic catheter having a tissue treating end, a mating end, at least one internal flow lumen for the flow of a fluid coolant therein and at least one electrode;
- an umbilical system having a first end coupled to the mating end of the catheter and a second end;
- and
- a console coupled to the second end of the umbilical system and having
- a processor for controlling a first pressure of a fluid coolant flowing into the catheter, for controlling a vacuum pressure of gas coolant flowing from the catheter, for implementing a user selected treatment procedure, for monitoring system operating and safety parameters, and for regulating the flow of a fluid coolant, and
- at least one pressure transducer.
3 more elements
A catheter system, comprising:
- a cryogenic catheter having a tissue treating end, a mating end, at least one internal flow lumen for the flow of a fluid coolant therein and at least one electrode;
- an umbilical system having a first end coupled to the mating end of the catheter and a second end;
- and
- a console coupled to the second end of the umbilical system and having
- a processor for controlling a first pressure of a fluid coolant flowing into the catheter, for regulating vacuum operation in the catheter, for implementing a user selected treatment procedure, for monitoring system operating and safety parameters, and for regulating the flow of a fluid coolant, and
- at least one pressure transducer.
3 more elements
A catheter system, comprising:
- a cyrogenic catheter having a tissue treating end, a mating end, at least one internal flow lumen for the flow of a fluid coolant therein and at least one electrode;
- an umbilical system having a first end coupled to the mating end of the catheter and a second end;
- and
- a console coupled to the second end of the umbilical system and having
- a processor for controlling a first pressure of a fluid coolant flowing into the catheter, and for implementing a user selected treatment procedure, and for monitoring system operating and safety parameters, and for regulating a temperature of the tissue treating end of the catheter, and for controlling a second pressure of the fluid coolant flowing within the cryogenic catheter;
- at least one pressure transducer;
- and
- one or more proportional valves disposed in the console and coupled to the processor for controlling the temperature of the tissue treating end of the catheter.
5 more elements
A catheter system, comprising:
- a cryogenic catheter having a tissue treating end, a mating end and at least one internal flow lumen for the flow of a fluid coolant therein;
- an umbilical system having a first end coupled to the mating end of the catheter and a second end;
- a console coupled to the second end of the umbilical system and having
- a processor for controlling a first pressure of a fluid coolant flowing into the catheter, and for implementing a user selected treatment procedure, and for monitoring system operating and safety parameters, and for regulating a temperature of the tissue treating end of the catheter, and for controlling a second pressure of the fluid coolant flowing within the cryogenic catheter, and
- a blood detection system disposed in the cryogenic catheter.
2 more elements
A catheter system, comprising:
- a cryogenic catheter having a tissue treating end, a mating end and at least one internal flow lumen for the flow of a fluid coolant therein;
- an umbilical system having a first end coupled to the mating end of the catheter and a second end;
- a console coupled to the second end of the umbilical system and having
- a processor for controlling a first pressure of a fluid coolant flowing into the catheter, and for implementing a user selected treatment procedure, and for monitoring system operating and safety parameters, and for regulating a temperature of the tissue treating end of the catheter, and for controlling a second pressure of the fluid coolant flowing within the cryogenic catheter, and
- a leak detection system having first and second electrodes disposed on the cryogenic catheter and coupled to the console, wherein the leak detection system measures a differential electrical impedance between the first electrode and the second electrode.
2 more elements
Dependencies are inferred from the claim text.