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Drainage and infusion catheters having a capillary sleeve forming a reservoir for a fluid antimicrobial agent

  • US 4,623,329 A
  • Filed: 12/15/1983
  • Issued: 11/18/1986
  • Est. Priority Date: 12/15/1983
  • Status: Expired due to Term
First Claim
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1. A catheter for drainage of or infusion into a body cavity, said catheter comprising an elongated tubular shaft having a distal end with at least one port near said distal end to be located in said body cavity to be treated and an open proximal end adapted to be connected to a drainage or infusion conduit, a sleeve extending about and longitudinally of said shaft from a point near said at least one port toward said proximal end of said shaft, said sleeve forming a concentric reservoir for a fluid antimicrobial agent, said sleeve being permeable to the controlled passage of said fluid antimicrobial agent by diffusion, filling means at said proximal end of said shaft for supplying said fluid antimicrobial agent to said reservoir and for replenishing said fluid antimicrobial agent therein, said sleeve having a distal end sealed to said shaft, said sleeve having a proximal end sealed to one of said shaft and said filling means, and distribution means for distributing said fluid antimicrobial agent within said reservoir about the periphery of said reservoir and for transporting said fluid antimicrobial agent along the length of said reservoir, said distribution means comprising a plurality of capillary grooves formed in the inside surface of said sleeve, said grooves being in parallel side-by-side relationship and extending the length of said sleeve.

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