Stent deployment device with two balloons

Details Stent deployment device with two balloons Stent deployment device with two balloons

A - Human Necessities

61

F

A61F 2/06 (2006.01) A61M 25/10 (2006.01) A61M 29/02 (2006.01)

Patent

CA 2238109

A stent delivery device [10] having a pair of balloons [32, 34] at a proximal end of a catheter [12] and having separate lumens [24, 26] for selectively inflating the respective balloons. The outer balloon [34] is relatively compliant and the inner balloon [32] is relatively non-compliant. A central lumen [28] is provided for a guide wire [30]. A stent [36] is carried by the delivery device within an axially retractable sheath [14] at the distal end of the catheter [12] and is deployed by retraction of the sheath [14] and inflation of the compliant balloon [34], and the stent [36] is subsequently expanded by inflation of the non-compliant balloon [32].

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