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Specimen tube holder

A technology of sample tube and central support, which is applied in the field of sample tube support, can solve the problems of sensitivity change and decrease of electrical signal detection sensitivity, and achieve the effect of increasing electrostatic capacitance and improving liquid level detection sensitivity

Inactive Publication Date: 2020-12-15
SUGENTECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, due to substances that interfere with electrical signals, such as the separation gel (Separate Gel) contained in the sample, the detection sensitivity of electrical signals may decrease. The problem that the sensitivity changes depending on the volume of the sample, etc.

Method used

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Embodiment Construction

[0037] Hereinafter, preferred embodiments of the present invention that can specifically achieve the object of the present invention will be described with reference to the accompanying drawings. In the description of the present embodiment, the same names and the same reference numerals are used for the same configurations, and additional explanations based thereon are omitted.

[0038] Existing electrostatic capacitance liquid level detection methods such as figure 2 As shown, when the probe 20 inserted into the inner side of the sample tube 10 touches the liquid level of the sample 22, the bottom surface 32 of the portion touched by the probe 20 and the lower side of the sample tube 10 each functions as an electrode plate.

[0039] At this time, the electrostatic capacitance and dielectric constant are proportional to the product of the area of ​​the electrode plate, and inversely proportional to the distance between the electrode plates.

[0040] In order to solve variou...

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Abstract

The present invention relates to a specimen tube holder which includes a probe-type capacitance liquid level detection sensor having increased sensitivity and thus enables more precise liquid level recognition. The present invention provides a specimen tube holder comprising: a central holder; and a lateral holder which is made of a conductive material, is spaced apart from a side surface of the central holder so as to have a receiving space formed between the central holder and the lateral holder to allow a specimen tube to be inserted into the receiving space, and has an inner surface formedto be vertically in contact with at least a part of the outer circumferential surface of the specimen tube received in the receiving space.

Description

technical field [0001] The invention relates to a sample tube holder capable of improving the liquid level detection sensitivity of a sample. Background technique [0002] Typically, automated medical equipment is used for the analysis of saliva, blood, urine, etc. At this time, the existing medical equipment composed of a fully automated system automatically performs the processes of detection, suction and dispensing of the liquid level of the sample (saliva, blood, urine, etc.) contained in the sample tube. Different volumes may produce different results, so it is important to aspirate and dispense accurate volumes. [0003] Such automated medical devices as figure 1 The configuration shown is such that after a plurality of sample tubes 10 containing the extracted samples are placed in the rack 30 , probes 20 or needles are inserted from the upper side of the sample tubes 10 to extract or inject samples. [0004] There are many methods for detecting the liquid level of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01L9/06
CPCB01L9/06B01L2200/143B01L2300/0645B01L2200/025B01L2300/123B01L2200/023B01L2300/0609B01L2300/0858B01L2200/028B01L2300/12
Inventor 安承洙宋文宰金成乐柳承范孙美进
Owner SUGENTECH INC
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