ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,209,899, issued on Jan. 28, was assigned to Stryker Corp. (Portage, Mich.).

"Systems and methods for estimating a blood volume within a canister" was invented by Siddarth Satish (Portola Valley, Calif.), Kevin J. Miller (Mountain View, Calif.), Peter Hyoung (Elmhurst, Ill.), Andrew Hosford (Idaho Falls, Idaho) and Eric Hsieh (Los Altos, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for estimating a blood volume within a canister. The system may include means for detecting a fluid level of the fluid, such as a float sensor mechanism disposed within the canister. An imaging device captures an image of the fluid within the canis...