US 11,707,594 B2
Systems and method for an optical anesthetic agent level sensor
Russell James Kuzelka, McFarland, WI (US); and Tomi Tapani Pekkarinen, Espoo (FI)
Assigned to GE Precision Healthcare LLC, Milwaukee, WI (US)
Filed by GE Precision Healthcare LLC, Milwaukee, WI (US)
Filed on Sep. 11, 2019, as Appl. No. 16/568,202.
Prior Publication US 2021/0069455 A1, Mar. 11, 2021
Int. Cl. A61M 16/18 (2006.01); A61M 16/20 (2006.01); A61M 16/00 (2006.01)
CPC A61M 16/18 (2013.01) [A61M 16/0003 (2014.02); A61M 16/0057 (2013.01); A61M 16/024 (2017.08); A61M 16/208 (2013.01); A61M 2016/003 (2013.01); A61M 2205/3306 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/3375 (2013.01); A61M 2205/3386 (2013.01); A61M 2205/581 (2013.01); A61M 2205/583 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A system for an anesthetic vaporizer comprising:
a sump configured to hold a liquid anesthetic agent;
a measurement tube including a float positioned therein, a bottom portion of the measurement tube coupled to a cap having a central opening;
a retaining bracket coupled to a top portion surface of the measurement tube;
an optical sensor housed within the retaining bracket, the optical sensor including a light source positioned to emit light toward an interior of the measurement tube and a light detector positioned to receive light from the interior of the measurement tube; and
an optical window housed within the retaining bracket and coupled between the optical sensor and the interior of the measurement tube,
wherein the retaining bracket couples the optical sensor to the sump of the anesthetic vaporizer, the retaining bracket being positioned on an exterior of the sump and the measurement tube being positioned within the sump,
wherein the retaining bracket includes a seal coupled therein, the seal forming a gas-tight barrier between the sump and the retaining bracket.