Patent ID: 6200305
Filing Date: 2001-03-13
Classification: A61M

Abstract:
A catheter device having a variable length guidewire lumen adapted for use with a conventional length guidewire, comprising:(a) an elongated inflation shaft having a proximal end, a distal end and an inflation lumen extending longitudinally throughout its length;(b) an extension shaft having a proximal end, a distal end and an extension lumen extending longitudinally throughout its length, the extension shaft proximal end being disposed adjacent the distal end of the inflation shaft such that the inflation lumen and the extension lumen are in fluid communication and form a continuous passageway therethrough;(c) a guidewire shaft having a proximal end, a distal end and a guidewire lumen extending throughout its length, the guidewire shaft disposed longitudinally throughout the length of the extension shaft, the distal end of the guidewire shaft extending beyond the distal end of the extension shaft, and the guidewire lumen dimensioned to slidably receive the guidewire;(d) a balloon member having a distal end and a proximal end, the proximal end of the balloon member being coupled to the distal end of the extension shaft, the distal end of the balloon member being coupled to the guidewire shaft adjacent the distal end of the guidewire shaft, the balloon member defining an interior cavity in fluid communication with the extension lumen; and(e) a variable length shaft formed of an elastomeric material and having a proximal end, a distal end, an outside surface and a variable length guidewire lumen, wherein the distal end of the variable length shaft is coupled to the extension shaft and the proximal end of the variable length shaft may be rolled and unrolled about the outside surface thereof to selectively vary the length of the variable length guidewire lumen.