Ultrasonically visible scoring balloon

摘要

An angioplasty balloon (40) is provided with a plurality of scoring elements (44) extending along the balloon (40). Within the scoring element (44) there are provided channels or lumens (36) extending therethrough. The channels or lumens (36) provide for Rayleigh scattering of ultrasonic waves directed to the balloon (40), thereby being visible by imaging devices. The channels or lumens (36) provide visibility of the balloon (40) during medical procedures, both when the balloon (40) is in a deflated, wrapped, condition and also when the balloon (40) is inflated. It is not necessary to use contrast media to fill the balloon (40).

主权项

1. A medical angioplasty balloon for location within a lumen of a patient, the balloon including a balloon wall extending in the direction of a longitudinal axis of the balloon and provided with one or more scoring or cutting elements, there being embedded within the one or more scoring or cutting elements an elongate channel or lumen having proximal and distal ends, completely circumscribed and enclosed by the balloon wall, sealed at its proximal and distal ends, and filled with a gas, the channel or lumen thereby providing a material discontinuity therewithin to increase ultrasonic visibility.