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System and method for monitoring and displaying balloon catheter inflation and deflation data

  • US 5,300,027 A
  • Filed: 03/18/1992
  • Issued: 04/05/1994
  • Est. Priority Date: 03/17/1989
  • Status: Expired due to Term
First Claim
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1. A system for monitoring a balloon-type member that is selectively inflated and deflated and for displaying the condition of the balloon-type member, comprising:

  • a syringe connected to said balloon-type member through tubing, said syringe comprising a barrel and a plunger selectively operable to inflate said balloon-type member by sliding the plunger into the barrel to apply fluid pressure, and by withdrawing the plunger from the barrel to essentially totally deflate the balloon-type member;

    transducer means for sensing whether the balloon-type member is inflated due to applied fluid pressure or is deflated due to removal of applied fluid pressure and for outputting an electrical signal proportional to said sensed fluid pressure, said transducer means being placed in fluid communication with said syringe and the tubing connected thereto;

    electronic circuit means, operatively connected to said transducer means and said display means, for processing said electrical signal, whereby said electronic circuit means electronically derives both a status of pressure applied to said balloon-type member during a first condition of inflation and the corresponding duration thereof, and a status of the removal of applied pressure during a second condition of essentially total deflation of the balloon-type member and the corresponding duration thereof; and

    display means operatively connected to the electronic circuit means for outputting a visual display of the sensed pressure and the corresponding duration thereof.

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