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Catheter system and method for injection of a liquid embolic composition and a solidification agent

  • US 6,964,657 B2
  • Filed: 02/11/2003
  • Issued: 11/15/2005
  • Est. Priority Date: 10/17/1997
  • Status: Expired due to Fees
First Claim
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1. A catheter for controlling solidification in vivo of liquid embolic compositions comprising:

  • (a) a first tube formed of a DMSO compatible material the first tube having a lumen;

    (b) a source of liquid embolic composition in fluid communications with the lumen of the first tube, the liquid embolic composition comprising a biocompatible, water-insoluble polymer dissolved in DMSO, the first tube formed of a DMSO compatible material;

    (c) a second tube having a lumen, wherein the first tube is movable from an extended position in which a distal end of the first tube extends beyond a distal end of the second tube and a retracted position in which a distal end of the second tube and a retracted position in which a distal end of the second tube is even with or extends beyond a distal end of the first tube;

    (d) a solidification agent source in fluid communication with the lumen of the second tube, the solidification agent selected to enhance solidification of the liquid embolic composition;

    (e) an actuator for sliding the first tube longitudinally with respect to the second tube;

    (f) a first fluid delivery port connected to a lumen of the first tube for delivery of a liquid embolic composition; and

    (g) a second fluid delivery port connected to a lumen of the second tube for delivery of the solidification agent.

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