System and method for estimating a quantity of a blood component in a fluid canister
First Claim
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 redness value in a red component space, a blueness value in the blue component space, and a greenness value in a green component space 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.
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Accused Products
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.
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Citations
17 Claims
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1. A method for assessment of blood within a canister, comprising:
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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 redness value in a red component space, a blueness value in the blue component space, and a greenness value in a green component space 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for assessment of blood within a canister, the method comprising:
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at a processor, receiving an image of the canister; at the processor, correlating a segment of the image with a portion of the canister containing fluid; at the processor, generating an estimated volume of fluid within the canister based on the segment; at the processor, extracting a color intensity value from the segment; at the processor, determining a concentration of a blood component within the canister based upon the color intensity value; and by way of the processor, rendering the analysis at a display of a mobile computing device comprising the processor and an optical sensor configured to capture the image of the canister, the analysis indicative of an amount of the blood component within the canister based upon the estimated volume of fluid and the concentration of the blood component within the fluid canister. - View Dependent Claims (11, 12, 13, 14)
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15. A system for assessment of blood of a patient received into a canister, the system comprising:
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an optical sensor; a processor coupled to the optical sensor; a software module executing on the processor and instructing the optical sensor to capture an image of the canister, the software module further instructing the processor to select an area of the image associated with a portion of the canister containing fluid, to generate an estimated volume of fluid within the canister based on the selected area, to extract a redness value from the selected area, and to estimate a quantity of a blood component within the canister based on the redness value, wherein the software module is configured to extract at least one of a color intensity, a luminosity, a hue, a saturation value, a brightness value, and a gloss value, as the redness value from the selected area, in estimating the quantity of the blood component; and an output module coupled to the processor and receiving instructions from the software module to output an analysis indicative of the quantity of the blood component and the estimated volume of fluid within the canister. - View Dependent Claims (16, 17)
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Specification