Patent ID: 8303510
Filing Date: 2012-11-06
Classification: A61B

Abstract:
1. An imaging device configured to be located in an imaging catheter, the imaging device having a longitudinal axis, said imaging device comprising: a drive shaft having proximal and distal ends; an imaging transducer coupled to the distal end of the drive shaft, the imaging transducer configured and arranged to transmit acoustic signals at a first frequency and with a bandwidth including the first frequency, wherein the imaging transducer faces perpendicular to the longitudinal axis of the imaging device and is rotatable about the longitudinal axis of the imaging device; an ultrasound Doppler transducer coupled to a distal end of the imaging transducer and configured and arranged such that rotation of the imaging transducer causes a corresponding rotation of the ultrasound Doppler transducer, the Doppler transducer configured and arranged to operate concurrently with the imaging transducer, the Doppler transducer configured and arranged to transmit acoustic signals at a second frequency, wherein the bandwidth of the imaging transducer does not overlap with the second frequency of the Doppler transducer, wherein the ultrasound Doppler transducer faces a direction that is parallel to the longitudinal axis of the imaging device; and an isolation ring coupled to and surrounding the Doppler transducer.