Colorimetric blood culture interpretation method and device

A technology of blood culture and colorimetry, applied in biochemical cleaning devices, biochemical equipment and methods, enzymology/microbiology devices, etc.

Active Publication Date: 2021-07-06
重庆民朗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0021] The main purpose of the present invention is to provide a colorimetric blood culture interpretation meth

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  • Colorimetric blood culture interpretation method and device
  • Colorimetric blood culture interpretation method and device
  • Colorimetric blood culture interpretation method and device

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Embodiment Construction

[0053] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0054] refer to figure 1 , the present invention provides a colorimetric blood culture interpretation method, comprising:

[0055] S1: judging whether the bacterial culture time reaches the first preset value;

[0056] S2: If yes, obtain the RGB value at the bottom of the blood culture bottle, and judge whether the condition for converting the RGB value into an HSV value is met, where H represents the hue value, S represents the saturation value, and H represents the brightness value;

[0057] S3: If yes, convert the RGB value into an HSV value;

[0058] S4: Obtain the first critical point of change and the second critical point of change corresponding to the H value, wherein the first critical point of change is the critical point at which the H value changes from constant to constant, and the second critical poin...

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Abstract

The invention discloses a colorimetric blood culture interpretation method and device. The method comprises the following steps: judging whether bacterial culture duration reaches a first preset value or not; if yes, acquiring an RGB value of the bottle bottom of a blood culture bottle, and judging whether a condition for converting the RGB value into an HSV value is met or not; if yes, converting the RGB value into an HSV value; acquiring a first change critical point and a second change critical point corresponding to the H value; acquiring H values corresponding to the first change critical point and the second change critical point, and judging whether a difference value of the H values corresponding to the first change critical point and the second change critical point is greater than a second preset value or not; if yes, judging the current moment as a positive judgment moment, and judging whether the S value is greater than or equal to the H value; and if yes, judging that a blood culture result is a positive result. Compared with the prior art, the detection accuracy of the blood culture result is improved, and the detection time is shortened, so that the detection efficiency is improved.

Description

technical field [0001] The invention relates to the field of biological detection, in particular to a colorimetric blood culture interpretation method and device. Background technique [0002] The colorimetric blood culture bottle changes the pressure inside the bottle by inoculating the carbon dioxide or other gases produced when the bacteria are cultured and proliferated in the liquid medium in the bottle, thereby pushing the carbon dioxide in the bottle to pass through the porous silica gel packaging film at the bottom of the bottle and contact the packaging. The biochemical sensor in the silica gel changes color, and the rubber bottom of the blood culture bottle is medium gray in color before use, and the RGB three-color values ​​are close. [0003] The blood culture bottle begins to change color during use, changing from medium gray to yellow, and finally dark yellow. Since this discoloration is irreversible, it can be judged whether there are bacteria in the culture s...

Claims

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Application Information

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IPC IPC(8): C12M1/34G01N21/78C12Q1/04
CPCC12M41/36G01N21/78C12Q1/04
Inventor 陈玉持
Owner 重庆民朗科技有限公司
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