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Detachable and reusable digital control unit for monitoring balloon catheter data in a syringe inflation system

  • US 5,449,345 A
  • Filed: 03/30/1994
  • Issued: 09/12/1995
  • Est. Priority Date: 03/17/1989
  • Status: Expired due to Term
First Claim
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1. A system for monitoring inflation or deflation of a balloon-type member and for displaying monitored inflation or deflation data, the system comprising:

  • a syringe for connection to the member through tubing, the syringe comprising a barrel and a plunger selectively operable to inflate the member by applying fluid pressure to the member through the tubing by sliding the plunger within the barrel, and operable to deflate the member by withdrawing the plunger from the barrel;

    transducer means for sensing fluid pressure and for outputting an electrical pressure signal proportional to the sensed fluid pressure, the transducer means adapted for placement in communication with the fluid pressure within the syringe and the tubing connected thereto;

    detachable electronic circuit means for receiving the electrical pressure signal when operatively coupled to the syringe or tubing, and for thereafter electronically processing the pressure signal;

    display means for outputting a visual display of monitored data derived from the electrical pressure signal; and

    means for operatively coupling the detachable electronic circuit means to the syringe or tubing, and the electrical pressure signal being thereafter received by the detachable electronic circuit means so as to enable the data to be derived and monitored, and the detachable electronic circuit means being detachable from the syringe for re-use in another system upon completion of monitoring.

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