US 12,324,702 B2
Ultrasonic catheter
Donald Masters, Sylmar, CA (US); and Jesus Andres Lopez, Bloomington, CA (US)
Assigned to Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed by Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed on Nov. 6, 2022, as Appl. No. 18/052,926.
Prior Publication US 2024/0148356 A1, May 9, 2024
Int. Cl. A61B 8/12 (2006.01); A61B 8/00 (2006.01)
CPC A61B 8/12 (2013.01) [A61B 8/445 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An ultrasonic catheter comprising:
a body having a longitudinal axis, a proximal end, and a distal end;
a micro-electromechanical (MEMS) based Piezoelectric Micromachined Ultrasonic Transducer (pMUT) array disposed within the distal end of the body;
a plurality of electronic flex circuits, connected at one end to a handle connector and at other end to a first layer of Adhesive Interconnect (AIC), wherein the handle connector passes ultrasound signals to the distal end via the plurality of electronic flex circuits; and
a distal pMUT interposer disposed between the first layer and a second layer of AIC, with InvisiVia connections, wherein the InvisiVia connections are configured to bring the electronic flex circuit from one side of the distal pMUT interposer to the other,
wherein the MEMS based pMUT array sends a pressure wave and receives a returning pressure wave echo via the InvisiVia connections of the distal pMUT interposer.