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disposable thermometer

A thermometer, disposable technology, applied to thermometers, thermometers with physical/chemical changes, instruments, etc., can solve the problems of high cost, impossible one-time use, cross-infection, etc., and achieve the effect of low cost

Active Publication Date: 2019-01-15
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

All three types of thermometers are expensive and cannot be used at one time
Reusable thermometers need to be disinfected after each use, and if the disinfection work is not in place, it may lead to cross-infection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Melt and mix n-eicosane and n-docosane in different proportions to form a mixture of different phase transition temperatures, then crush the mixture and fill it in an array with a cover plate and square grooves below it in sequence according to the phase transition temperature Shaped polyethylene board, after filling, cover with a cover to seal. The temperature range of the thermometer is 35-42°C, with every 0.2°C as a groove ( figure 1 shown), the size of the groove on the polyethylene plate is 2×2mm 2 , 2mm deep, the width of the entire polyethylene groove area is 1.5-4cm, and the length is about 2-3cm. The position of the thermometer cover corresponding to the groove is painted black.

[0036] When in use, put the thermometer under the armpit or in the mouth, and place the groove area in the middle of the armpit or completely submerged in the mouth. Take it out after 1 minute, and the highest temperature corresponding to the phase-change material that completely u...

Embodiment 2

[0043] Melt and mix n-tetradecyl alcohol and n-pentadecanol together to form a mixture with different phase transition temperatures, then crush the mixture and fill them in sequence according to the phase transition temperature in a polyethylene plate with a cover plate and grooves on the bottom, filling After finishing, close the cover plate and seal. The temperature range of the thermometer is 35-42°C, and every 0.2°C is a square groove ( figure 1 shown), the size of the groove on the polyethylene plate is 2×2mm 2 , 2mm deep, the width of the entire polyethylene groove area is 1.5-4cm, and the length is about 2-3cm. The position of the thermometer cover corresponding to the groove is painted black.

[0044] Use and processing method are with embodiment 1.

[0045] Table 2. Correspondence between composite phase change materials and temperature

[0046]

[0047]

Embodiment 3

[0049] Different proportions of n-pentadecanol and decanoic acid are melted and mixed together to meet the requirements of different phase transition temperatures, and then the white crystals formed by crushing the mixture are sequentially filled in a poly pair with a cover plate and grooves below it according to the phase transition temperature. In the ethylene phthalate plate, after filling, cover with a cover plate to seal. The temperature range of the thermometer is 35-42°C, with every 0.2°C as a groove. Groove size on polyethylene terephthalate board is 2×2mm 2 , 2mm deep, the width of the entire polyethylene terephthalate groove area is 1.5-4cm, and the length is about 2-3cm. The position corresponding to the groove on the cover plate of the thermometer is painted blue.

[0050] Use and processing method are with embodiment 1.

[0051] Table 3. Correspondence between composite phase change materials and temperature

[0052]

[0053]

[0054]

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Abstract

The invention discloses a disposable thermometer, which is mainly used for measuring body temperature. The thermometer is totally made of organic matters, and can be disposed through incineration after use. Phase-change material powders are placed in a container made of plastics, and body temperature is represented through the feature that different phase-change materials have phase change under different temperatures. The phase-change materials comprise aliphatic hydrocarbons, fatty alcohol, fatty acid and fatty acid ester. The aliphatic hydrocarbons comprise n-nonadecane-n-tetracosane; the fatty alcohol comprises n-tridecanol-n-hexadecanol; the fatty acid comprises n-capric acid-n-octadecanoic acid; and the fatty acid ester comprises methyl stearate, ethyl stearate, methyl nonadecanoate, ethyl nonadecanoate, eicosanoic acid methyl ester and eicosanoic acid ethyl ester. The phase-change materials having different phase-change temperatures are mixture of two or three kinds of different phase-change materials. The disposable thermometer is cheap, does not need disinfection and is easy to dispose.

Description

technical field [0001] The invention relates to a disposable thermometer. Background technique [0002] There are three types of medical thermometers, glass mercury thermometers, electronic thermometers and ear thermometers. Three kinds of thermometers are all expensive, and cannot be used in one go. Reusable thermometers need to be disinfected after each use. If the disinfection work is not in place, it may lead to cross-infection. [0003] After searching, it is found that the currently valid utility model patent for disposable thermometers (application number: N200610029740) is made using the principle of liquid thermal expansion and cold contraction, and glass is still used in the selection of materials, and it also needs to be used in the treatment of medical waste. classification processing. Contents of the invention [0004] In order to meet the objectives of a disposable thermometer that is cheap, does not need to be sterilized and is easy to handle, the present...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K11/06C09K5/06
CPCC09K5/06G01K11/06
Inventor 邹黎明陆韵菲郭立富
Owner DONGHUA UNIV
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