SYSTEM AND METHOD FOR ESTIMATING A QUANTITY OF A BLOOD COMPONENT IN A FLUID CANISTER

• US 20160027173A1
• Filed: 10/06/2015
• Published: 01/28/2016
• Est. Priority Date: 05/14/2012
• Status: Active Grant

• Current Assignee: Gauss Surgical, Gauss Surgical, Inc. (Stryker Corporation)
• Original Assignee: Gauss Surgical
• Inventors: Satish, Siddarth, Zandifar, Ali, Miller, Kevin J
• Granted Patent: US 9,595,104 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 5/02042 Determining blood loss or bleeding, e.g. during a surgical procedure
• CPC Class Codes: G01F 22/00 Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
• CPC Class Codes: G01F 23/292 Light , e.g. infrared or ultraviolet
• CPC Class Codes: G01N 21/25 Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
• CPC Class Codes: G01N 21/84 Systems specially adapted for particular applications
• CPC Class Codes: G01N 21/90 in a container or its contents G01N21/91 takes precedence
• CPC Class Codes: G01N 33/49 Blood chemical methods for determining blood cell populations G01N33/5094; chemical analysis of blood groups or blood types G01N33/80
• CPC Class Codes: G06T 2207/10024 Color image
• CPC Class Codes: G06T 2207/30004 Biomedical image processing
• CPC Class Codes: G06T 7/0012 Biomedical image inspection
• CPC Class Codes: G06T 7/70 Determining position or orientation of objects or cameras camera calibration G06T7/80
• CPC Class Codes: G06T 7/90 Determination of colour characteristics

Abstract

A variation of a method for estimating a quantity of a blood component in a fluid canister includes: within an image of a canister, identifying a reference marker on the canister; selecting an area of the image based on the reference marker; correlating a portion of the selected area with a fluid level within the canister; estimating a volume of fluid within the canister based on the fluid level; extracting a feature from the selected area; correlating the extracted featured with a concentration of a blood component within the canister; and estimating a quantity of the blood component within the canister based on the estimated volume and the concentration of the blood component within the canister.

Claims

1. A method for assessment of blood within a canister, comprising:

at a processor, selecting an area of an image of the canister upon detection of a reference marker on the canister;

at the processor, determining a fluid level within the canister based upon the area within the image;

at the processor, generating an estimated volume of blood within the canister based on the fluid level;

at the processor, extracting a feature from at least one pixel of the area;

at the processor, correlating the feature with a concentration of a blood component within the canister;

at the processor, estimating a quantity of the blood component within the canister based on the estimated volume and the concentration of the blood component within the canister; and

by way of the processor, rendering an analysis indicative of the quantity of the blood component and an estimated total patient blood loss, based upon the estimated volume of blood within the canister.