US 12,420,059 B2
Pressure-sensing guidewire
Richard Ducharme, Buffalo, NY (US)
Assigned to Ampullae, Inc., Buffalo, NY (US)
Filed by Ampullae, Inc., Buffalo, NY (US)
Filed on Oct. 25, 2021, as Appl. No. 17/510,257.
Claims priority of provisional application 63/123,095, filed on Dec. 9, 2020.
Claims priority of provisional application 63/105,015, filed on Oct. 23, 2020.
Prior Publication US 2022/0126061 A1, Apr. 28, 2022
Int. Cl. A61M 25/00 (2006.01); A61M 25/01 (2006.01); A61M 25/09 (2006.01)
CPC A61M 25/0067 (2013.01) [A61M 25/0102 (2013.01); A61M 2025/0002 (2013.01); A61M 2025/0042 (2013.01); A61M 2025/09183 (2013.01); A61M 2205/0266 (2013.01); A61M 2205/0294 (2013.01); A61M 2205/3331 (2013.01); A61M 2205/581 (2013.01); A61M 2205/582 (2013.01); A61M 2205/583 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An endovascular device, comprising:
(a) a proximal end, configured for communicating a pressure signal to a receiver;
(b) a distal end comprising a pressure sensor that is based on (i) a piezoelectric polymer layer encapsulating an exposed tip of a core wire, the exposed tip being located at the distal end; and (ii) first and second electrodes, electrically insulated from each other, each contacting the piezoelectric polymer layer, wherein the pressure sensor derives the pressure signal from the first and second electrodes; and
(c) a device body, which provides one or more conductors for carrying the pressure signal from the distal end to the proximal end.