Patent ID: 11883233
Assignee: KONINKLIJKE PHILIPS N.V.
Field: Medical technology (Instruments)
Classification: CPC A  B  G  H | IPC A  B  G  H

Claim 22:
23. 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 and a distal portion; and
an ultrasound imaging assembly disposed at the distal portion of the flexible elongate member, the ultrasound imaging assembly configured to obtain imaging data of the body lumen, the ultrasound imaging assembly comprising a transducer array comprising:
a spaced-apart substrate segment defined at least partially by a trench adjacent to the spaced-apart substrate segment,
a silicon oxide layer disposed over the spaced-apart substrate segment, and
at least one transducer element disposed on the silicon oxide layer,

wherein the trench is formed by etching the spaced-apart substrate segment through a screen formed by portions of the silicon oxide layer remaining when a plurality of holes are formed through the silicon oxide layer,
wherein the spaced-apart substrate segment comprises a first sidewall adjacent to the trench and below the screen.