Surgery – Instruments – Cyrogenic application
Reexamination Certificate
2004-03-23
2010-06-01
Peffley, Michael (Department: 3739)
Surgery
Instruments
Cyrogenic application
C606S027000
Reexamination Certificate
active
07727228
ABSTRACT:
A system and method for controlling the inflation, ablation, and deflation of a balloon catheter is provided. The system includes a balloon catheter, a console having a pressurized gas or liquid inflation source, and an umbilical system to deliver pressurized coolant to the balloon catheter. The system comprises a PID (Proportional Integral Derivative) controller or other pressure-sensing device that monitors the amount of pressure and volume within the balloon catheter. During inflation, the pressure and/or volume of fluid within the balloon is maintained at a target amount in order to provide sufficient mechanized pressure against the desired target region. The system limits the inflation pressure such that a safe quantity of gas would be released should a leak occur. If the amount falls below a certain threshold level, gas or fluid egress is presumed and the inflation process is halted.
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Abboud Marwan
Harmouche Chadi
Mahrouche Rachid
Mihalik Teresa Ann
Monger Eric
Christopher & Weisberg P.A.
Medtronic Cryocath LP
Peffley Michael
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