Patent ID: 11857361
Assignee: KONINKLIJKE PHILIPS N.V.
Field: Measurement (Instruments)
Classification: CPC A  G | IPC A  G

Claim 0:
1. An intraluminal ultrasound imaging device, comprising:
a flexible elongate member configured to be positioned within a body lumen of a patient, the flexible elongate member comprising a proximal portion, a distal portion, and a longitudinal axis; and
an ultrasound imaging assembly disposed at the distal portion of the flexible elongate member and configured to obtain imaging data while positioned within the body lumen, the ultrasound imaging assembly comprising:
a plurality of substrate islands;
a plurality of acoustic elements formed on each of the plurality of substrate islands, wherein the plurality of acoustic elements comprises a plurality of capacitive micromachined ultrasound transducer (CMUT) elements, wherein each of the plurality of CMUT elements comprises a membrane movable relative to the plurality of substrate islands;
a flexible interconnect coupled to the plurality of substrate islands such that the flexible interconnect directly contacts the membrane and the plurality of substrate islands is arranged around the longitudinal axis of the flexible elongate member, wherein the flexible interconnect comprises a plurality of openings, each opening of the plurality of openings overlapping with an associated acoustic element of the plurality of acoustic elements; and
an acoustically-transparent window disposed over the plurality of acoustic elements, the acoustically-transparent window comprising a plurality of layers formed on top of one another, wherein the plurality of layers comprises:
an innermost layer directly contacting the membrane;

an outermost layer opposite the innermost layer; and
an adhesive layer coupling the outermost layer to another layer of the plurality of layers,

wherein the acoustically-transparent window is disposed over the flexible interconnect.