Patent ID: 11858181
Assignee: SONAVEX, INC.
Field: Other special machines (Mechanical engineering)
Classification: CPC B  A | IPC A  B

Claim 16:
17. A method of use comprising:
providing an echogenic marker including a polymer material including a first region and a second region, the first region continuously enveloping the second region over an entirety of a surface area of the echogenic marker, the echogenic marker includes a plurality of microcavities dispersed within the second region that are configured to reflect ultrasonic signals transmitted at one or more angles toward the echogenic marker when the echogenic marker is implanted in a patient, wherein the plurality of microcavities are formed by foaming the polymer material via a blowing agent injected into the polymer material;
inserting the echogenic marker in a patient;
detecting the echogenic marker using B-mode ultrasound during or after surgery based on ultrasonic signals reflected by the plurality of microcavities dispersed within the second region; and
detecting the echogenic marker in a frame associated with a reflected ultrasonic signal, the frame corresponding to a unique angle of insonation of an ultrasonic signal transmitted toward the echogenic marker during or after surgery.