| 摘要 |
A non-occlusive dilation and deployment catheter device 10 comprises a catheter 12 having a distal end 14 configured for entering a patient and a proximal end for manipulating the device. A distender 16 is provided at or near the distal end and is movable between a collapsed configuration (which enables introduction and removal to and from an operative site in a vessel or other hollow organ of a patient) and an expanded configuration (in which the distender assumes a radially expanded condition, defining a flow path 18 there through). The distender has a substantially tubular, radially expandable frame 20 with a plurality of spaced apertures 22. At least one inflatable tube 24 is threaded through the apertures 22 and shaped to extend in a spiral when inflated. The distender is movable to the expanded configuration by inflating the tube, and conversely, movable to the collapsed configuration from the expanded configuration by deflation of the tube. |
