KROLIK, JEFFREY A.,WATANABE, GWENDOLYN,DOMINGO, JUAN,BETELIA, RAY,DREHER, JAMES H.,MIRZAE, DARYUSH,FERNANDEZ, LUCAS
申请号：
CA2768506
公开号：
CA2768506C
申请日:
2010.07.23
申请国别(地区):
CA
年份:
2018
代理人:
摘要：
An apparatus for treating obstructive material and/or other obstructions in abody lumen of apatient is provided that is operable in different modes to perform variousfunctions for treating abody lumen. The apparatus includes a shaft including proximal and distal ends,a lumenextending therebetween, and a balloon on the distal end. The apparatusincludes a valve on thedistal end that selectively opens or closes an outlet communicating with thelumen. With thevalve open, fluid introduced into the lumen exits the outlet into a bodylumen. With the valveclosed, fluid introduced into the lumen expands the balloon. The valve may bebiased to beclosed, e.g., by a spring element disposed within the balloon. Optionally, theapparatus alsoincludes an actuator for expanding a helical member within the ballooninterior, e.g., eitherbefore or after expanding the balloon, such that the helical member andballoon may adopt anexpanded helical shape for removing material within a body lumen.
