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Method and device for identifying small hole blockage of blood cell analyzer

A technology of blood cell analysis and hole plugging, which is applied in the direction of measuring devices, individual particle analysis, particle and sedimentation analysis, etc., can solve problems such as inability to accurately report hole plugging, reference voltage loses reference meaning, etc., to achieve accurate identification and avoid false alarm blockage hole effect

Active Publication Date: 2021-03-26
SHENZHEN COMEN MEDICAL INSTR
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

The defect of this method is that when there is a significant difference between the temperature of the current diluent and the temperature at startup, the reference voltage at startup loses its reference meaning due to the different conductivity of the diluent at different temperatures, and it is impossible to accurately report plugged holes

Method used

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  • Method and device for identifying small hole blockage of blood cell analyzer
  • Method and device for identifying small hole blockage of blood cell analyzer
  • Method and device for identifying small hole blockage of blood cell analyzer

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Embodiment Construction

[0057] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. Wherein, similar elements in different implementations adopt associated similar element numbers. In the following implementation manners, many details are described for better understanding of the present application. However, those skilled in the art can readily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the application are not shown or described in the description, this is to avoid the core part of the application being overwhelmed by too many descriptions, and for those skilled in the art, it is necessary to describe these operations in detail Relevant operations are not necessary, and they can fully understand the relevant operations according to the description in the specification and genera...

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Abstract

The invention discloses a small hole blockage identification method and device, and the method comprises the steps: carrying out the derivation of a small hole voltage curve, obtaining an inflection point of the small hole voltage curve, solving the integral of a derivative function between the inflection points to identify the blockage condition, and obtaining a blockage occurrence or ending timepoint through combining with the position of the inflection point. When hole blockage is found, the small hole blockage working condition can be further judged in combination with the average voltageof the small hole voltage curve within the preset time period, small hole blockage is prevented from being not reported or misreported, and therefore the small hole blockage working condition of thesmall hole can be recognized more accurately.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a method and device for identifying small hole blocking of a blood cell analyzer. Background technique [0002] Hematology analyzers commonly use the Coulter principle to count and group blood cells. Please refer to figure 1 ,Such as figure 1 As shown, there is a small hole in the detector of the analyzer, and there are a pair of positive and negative electrodes on both sides of the small hole, and the positive and negative electrodes are connected to a constant current power supply. The blood sample is mixed evenly in the diluent to obtain a blood cell dilution, and the blood cell dilution is immersed in the small hole. Because cells are poor conductors of electricity, when the blood cells in the diluted sample pass through the small hole under the action of pressure, the resistance between the electrodes changes, thus forming a pulse signal proportional to the cell...

Claims

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Application Information

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IPC IPC(8): G01N15/12
CPCG01N15/12
Inventor 王兴红邹海涛
Owner SHENZHEN COMEN MEDICAL INSTR
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