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Method and apparatus for inflating and deflating balloon catheters

  • US 8,382,747 B2
  • Filed: 10/18/2007
  • Issued: 02/26/2013
  • Est. Priority Date: 03/23/2004
  • Status: Active Grant
First Claim
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1. A coolant system for a medical device, comprising:

  • a first coolant reservoir;

    a first proportional valve in fluid communication with the first coolant reservoir;

    a first controller coupled to the first proportional valve;

    a coolant supply line in fluid communication with the first proportional valve;

    a vacuum source;

    a second proportional valve in fluid communication with the vacuum source;

    a second controller coupled to the second proportional valve;

    a sensor coupled to the second controller; and

    a coolant exhaust line in fluid communication with the second proportional valve, the system being operable in a first mode wherein the first coolant reservoir and vacuumsource are fluidly isolated from each other and a second mode wherein the first coolant reservoir and vacuum source are in fluid communication with each other, the system operable to identify a leak based at least in part on signals from the sensor when the system is operable in the first mode.

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