US 11,944,495 B2
Implantable ultrasonic vascular sensor
Axel Brisken, Fremont, CA (US); Jessi Johnson, Sunnyvale, CA (US); Douglas S. Sutton, Pacifica, CA (US); Hanson S. Gifford, III, Woodside, CA (US); Mark Deem, Portola Valley, CA (US); and Fiachra Sweeney, Dublin (IE)
Assigned to Foundry Innovation & Research 1, Ltd., Dublin (IE)
Appl. No. 16/618,308
Filed by Foundry Innovation and Research 1, Ltd., Dublin (IE)
PCT Filed May 31, 2018, PCT No. PCT/EP2018/064383
§ 371(c)(1), (2) Date Nov. 29, 2019,
PCT Pub. No. WO2018/220143, PCT Pub. Date Dec. 6, 2018.
Claims priority of provisional application 62/513,013, filed on May 31, 2017.
Prior Publication US 2020/0253583 A1, Aug. 13, 2020
Int. Cl. A61B 8/00 (2006.01); A61B 8/08 (2006.01); A61B 8/12 (2006.01)
CPC A61B 8/4472 (2013.01) [A61B 8/0891 (2013.01); A61B 8/12 (2013.01); A61B 8/4254 (2013.01); A61B 8/5223 (2013.01); A61B 8/565 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An implantable ultrasonic vascular sensor configured to be implanted in a patient's inferior vena cava (IVC) at a fixed location within the IVC in contact with the IVC wall, comprising:
at least one ultrasound transducer;
a transducer drive circuit;
an implantable support structure configured to move with physiological expansion and contraction of the IVC wall in response to changes in patient fluid volume, wherein said at least one transducer and transducer drive circuit are supported on the support structure, said at least one ultrasound transducer is supported to move with said expansion and contraction of the IVC wall when the support structure moves therewith; and
means for wirelessly transmitting ultrasound data from the at least one ultrasound transducer.