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Retrograde perfusion system, components and method

  • US 5,024,668 A
  • Filed: 01/20/1987
  • Issued: 06/18/1991
  • Est. Priority Date: 01/20/1987
  • Status: Expired due to Fees
First Claim
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1. A catheter comprising:

  • cannula means having a proximal end, a distal end in fluid communication with a corporeal lumen, and a channel for communication of fluids between said distal and proximal ends, said cannula means being formed for positioning within said corporeal lumen and for connection to external means when positioned in said corporeal lumen;

    balloon means attached to said cannula means proximate said distal end and operable between an inflated condition in which said balloon means substantially occludes said corporeal lumen and a deflated condition in which said balloon means is collapsed about said cannula means, said balloon means being sized and shaped to facilitate fluid flow therepast in said lumen when in said deflated condition;

    connector means attached to said proximal end for connection to a fluid reservoir;

    balloon inflating means associated with said cannula means for operating said balloon means between said inflated and deflated conditions, said balloon inflating means including a second channel formed in said cannula means and a port formed in said cannula means in fluid communication between said second channel and the interior of said balloon means; and

    pressure sensing means to sense the pressure of fluids within said lumen and communicate signals reflective thereof at said proximal end, said pressure sensing means including a port formed in said cannula means between said balloon means and said distal end and a third channel formed in said cannula means in fluid communication with said port to communicate fluid pressure signals therethrough.

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