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BODY-RETAINED CATHETER

  • US 3,726,283 A
  • Filed: 10/07/1971
  • Issued: 04/10/1973
  • Est. Priority Date: 10/07/1971
  • Status: Expired due to Term
First Claim
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1. In a flexible body cavity liquid drainage device having a proximal end, a distal end, at least one drainage eye in said distal end for draining the cavity, a liquid drainage lumen extending from said eye to said proximal end, and inflatable retaining means longitudinally spaced from said eye for retaining said distal end within the body cavity;

  • the improvement further comprising means for inflating said retaining means by fluid flowing through said lumen from said proximal end, said inflating means including means secured to said device adjacent the distal end for blocking fluid flow out through said eye and said distal end from said lumen, said inflating means permitting unobstructed fluid flow through said lumen from said proximal end to said retaining means during said inflating, whereby said inflating means can be inflated through said drainage lumen free of undesired internal constrictions even when inserted into substantially non-linear body ducts.

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