a disposable thermometer

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

Active Publication Date: 2019-01-11
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

[0024] Melt and mix n-eicosane and n-docosane in different proportions to form a mixture of different phase transition temperatures, and then crush the mixture in order from low temperature to high temperature and fill it in a tube with a diameter of 8mm from bottom to top. In the linear transparent polypropylene tube ( figure 1 shown), the scale part is 4cm, the temperature range is 35-42°C, and the temperature accuracy is 0.2°C. After filling, the upper end is sealed with cotton, and finally melted and sealed.

[0025] Table 1. Correspondence between composite phase change materials and temperature

[0026]

[0027]

[0028]

[0029] Wherein, the ratio in the table is the molar ratio.

[0030] When measuring body temperature, put the scale part of the thermometer into the armpit, or place it in the mouth, or insert it into the anus, and the scale part of the thermometer should be completely submerged. Take it out after one minute, and the temperature correspondin...

Embodiment 2

[0033] Melt and mix n-hecodecane and n-tricosane in different proportions, other filling conditions, use and incineration are the same as in Example 1, and the corresponding relationship between the ratio of the composite phase change material and the temperature is the same as in Table 1.

Embodiment 3

[0035] Melt and mix n-nonadecane and n-tetracosane in different proportions, other filling conditions, use and incineration are the same as in Example 1, and the corresponding relationship between the ratio of the composite phase change material and the temperature is the same as in Table 1.

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Abstract

The invention discloses a disposable thermometer which is mainly used for measuring body temperature. The selected materials of the thermometer are organic matters, so that the thermometer can be incinerated after use. The thermometer utilizes characteristics of different phase-change materials which can change phase at different temperature, so that the body temperature can be expressed through the phase change, the phase-change materials are mixtures of any two kinds of materials selected from nonadecane to tetracosane at any proportion, and materials of thermometer container comprise transparent plastic materials such as polypropylene, polyethylene and the like. The arrangement shapes of the phase-change materials are line, ring and array. The disposable thermometer is economic, has no need to sterilize and is easy to be disposed.

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 effective utility model patent for disposable thermometers (application number: CN200610029740) is made using the principle of thermal expansion and contraction of liquids, and glass is still used in the selection of materials, and it is also necessary for the treatment of medical waste. classification processing. Contents of the invention [0004] In order to meet the purpose of a disposable thermometer that is cheap, does not need to be sterilized and is easy to handle, the present i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K11/06
CPCG01K11/06
Inventor 邹黎明陆韵菲郭立富
Owner DONGHUA UNIV
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