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Catheter purge device

  • US 5,224,933 A
  • Filed: 03/23/1992
  • Issued: 07/06/1993
  • Est. Priority Date: 03/23/1992
  • Status: Expired due to Fees
First Claim
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1. A catheter device for deflating and inflating a balloon positioned on a distal end of said catheter, comprising:

  • (a) a catheter having a flexible deflatable/inflatable balloon in its distal region and adapted to have a deflation/inflation device connected to its proximal end;

    (b) a balloon inflation lumen communicating with said balloon at the proximal end of said balloon and extending axially along the catheter and adapted to communicate with a deflation/inflation device at its proximal end;

    (c) a directional flow lumen having a substantially smaller diameter than said balloon inflation lumen and distally terminating at the distal end of said balloon, said directional flow lumen extending axially along the length of the catheter and communicating with said balloon inflation lumen at the proximal end of said balloon inflation lumen, and distally of the proximal end of said balloon catheter; and

    (d) one-way valve means positioned within the directional flow lumen at the proximal region of said catheter and distally of the proximal end thereof.

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