Patent ID: 6146373
Filing Date: 2000-11-14
Classification: A61B,A61M

Abstract:
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 second tube connected to the first tube, the second tube having a lumen, wherein the second tube coaxially surrounds the first tube;(c) an actuator for sliding the first tube longitudinally with respect to the second tube;(d) a first fluid delivery port connected to the lumen of the first tube for delivery of a liquid embolic composition which composition comprises a biocompatible, water-insoluble polymer dissolved in DMSO, the first delivery port formed of a DMSO compatible material;(e) a second fluid delivery port connected to the lumen of the second tube for delivery of a solidification agent which encourages solidification of the liquid embolic composition; andan anti-kinking mechanism for preventing kinking of the first tube as it slides in the second tube, the anti-kinking mechanism including a rigid tube connected to the first tube and a sleeve, wherein the rigid tube is slidable within the sleeve.