Single lumen balloon catheter having chemical-resistant or adherence-resistant balloon section.

摘要

This invention is a surgical device. In particular, it is low profile, single lumen catheter (130) preferably having a movable seal (140) or seat that allows the balloon (138) to be inflated by sealing against the movable guidewire (160) or against itself. An additional variation of the invention includes a non-removable guidewire (160) situated in the catheter body (130) in such a way to provide or add stiffness to the otherwise flexible distal section of the catheter (130) during a procedure. An enhanced strain relief transition joint between significantly stiffer proximal section (136) and the more flexible distal section (132) is provided. Finally, methods of using the inventive balloon catheter are also shown. The balloon (406) is preferably produced of one or more materials that are resistant to components of chemical vaso-occclusive compositions (414) or are resistant to adherence to those compositions.