Rotational intravascular ultrasound probe and method of manufacturing the same
AssigneePhilips Image Guided Therapy Corporation
InventorsStephen Charles Davies, Norman H. Hossack, Peter Smith
Life of this patent
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Abstract
A rotational intravascular ultrasound probe for insertion into a vasculature and a method of manufacturing the same. The rotational intravascular ultrasound probe comprises an elongate catheter having a flexible body and an elongate transducer shaft disposed within the flexible body. The transducer shaft comprises a proximal end portion, a distal end portion, a drive shaft extending from the proximal end portion to the distal end portion, an ultrasonic transducer disposed near the distal end portion for obtaining a circumferential image through rotation, and a transducer housing molded to the drive shaft and the ultrasonic transducer.
Claims16
An apparatus, comprising:
- a rotational intravascular ultrasound (IVUS) catheter comprising:
- a drive cable configured to rotate;
- a housing attached to a distal portion of the drive cable;
- a transducer subassembly disposed within the housing and comprising:
- a first matching layer;
- a first electrode layer;
- a transducer layer configured to obtain a circumferential image of a blood vessel;
- a second electrode layer;
- and
- a second matching layer,
- wherein the housing and the transducer subassembly are configured to rotate during rotation of the drive cable,
- wherein the first matching layer and the first electrode layer are positioned on a frontside of the transducer layer,
- wherein the second electrode layer and the second matching layer are positioned on a backside of the transducer layer,
- wherein the housing directly contacts the second matching layer.
Dependencies are inferred from the claim text.