| 摘要 |
Method and device for treating vascular obstruction using ultrasonic energy in combination with, cryogenic energy and/or an expandable member is disclosed. Ultrasound energy is delivered from a special ly designed ultrasound transducer that is inserted in a blood vessel . Ultrasound energy can be delivered in conjunction with cryogenic energy. Ultrasound energy can also be delivered in conjunction with, an expandable member such as expandable tubing, a hinged transducer, or a balloon. Ultrasound energy can also be delivered in conjunction with both cryogenic energy and an expandable member. The use of ultrasound energy in combination with cryogenic energy and/or an expandable member can treat a vascular obstruction.
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