Patent ID: 6964657

Claim:
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.