CN105784186A - Disposable thermometer - Google Patents
Disposable thermometer Download PDFInfo
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- CN105784186A CN105784186A CN201610160110.3A CN201610160110A CN105784186A CN 105784186 A CN105784186 A CN 105784186A CN 201610160110 A CN201610160110 A CN 201610160110A CN 105784186 A CN105784186 A CN 105784186A
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- phase
- change material
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- temperature
- disposable thermometer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/06—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using melting, freezing, or softening
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
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
The present invention relates to a kind of disposable thermometer.
Background technology
Medical body temperature in respect of three kinds, glass mercury column type clinical thermometer, electronic thermometer and Er Wen clinical thermometer.Three kinds of equal costs of thermometer are high, all can not single use.Reusable clinical thermometer needs sterilization every time after using, once disinfection is not in place, then may result in cross infection.
Find through retrieval, what effective disposable thermometer utility model patent (application number: N200610029740) utilized at present is that the principle that liquid expands with heat and contract with cold makes, and still selected glass on material selects, the process of medical waste is also required to classification and processes.
Summary of the invention
In order to meet disposable thermometer cheap, without sterilization and easy to handle purpose, the present invention proposes a kind of disposable thermometer.The phase transition temperature difference of the different phase-change material of this thermometer measures temperature.When measuring body temperature, thermometer and human contact, then phase transition temperature is all melted lower than the phase-change material of body temperature, is recrystallized into as regular crystal after cooling, and maximum temperature corresponding to the separating surface of solid-liquid interface, crystallization and powder or the phase-change material that undergoes phase transition is body temperature.
For achieving the above object, the present invention can be solved by the following technical programs:
The disposable thermometer of the present invention, phase-change material powder is positioned in the container of the definite shape that plastics are made, by have the phase-change material of different phase transition temperature undergo phase transition generation separating surface or again crystallization make phase-change material outward appearance change to characterize body temperature, described phase-change material includes aliphatic hydrocarbon, fatty alcohol, fatty acid, fatty acid ester；Described aliphatic hydrocarbon includes AI3-36122～n-tetracosane；Described fatty alcohol includes positive tridecanol～cetyl alcohol；Described fatty acid includes positive ten carbonic acid～positive 18 carbonic acid；Described fatty acid ester includes methyl stearate, ethyl stearte, methyl nonadecanoate, nonadecanoic acid ethyl ester, 20 acid methyl ester, 20 acetoacetic ester fatty acid esters；The phase-change material with different phase transition temperature refers to the mixture of two or three different phase-change materials；Described definite shape is for including array shape, polygon or letter shape.
As currently preferred technical scheme:
Disposable thermometer of the present invention, described phase-change material is the mixture of AI3-28404 and n-docosane, and the corresponding relation of its temperature and molar ratio is:
Disposable thermometer of the present invention, described phase-change material is the mixture of tetradecanol and pentadecanol, and the corresponding relation of its molar ratio and temperature is:
Disposable thermometer of the present invention, described phase-change material is pentadecanol and the mixture of ten acid, and the corresponding relation of its molar ratio and temperature is:
Disposable thermometer of the present invention, described phase-change material is lauric acid/dodecanoic acid and the mixture of ten acid, and the corresponding relation of its molar ratio and temperature is:
Disposable thermometer of the present invention, described phase-change material is the mixture of stearic acid, the acid of positive Kui and Palmic acid, and the corresponding relation of its molar ratio and temperature is:
Disposable thermometer of the present invention, described phase-change material powder diameter ranges for 0.0001～2mm；One end of described container is connected to handle, and decreased food is 1～10cm；The temperature-measuring range of described body temperature is 35～42 DEG C, and temperature accuracy is 0.1～0.5 DEG C.
Disposable thermometer of the present invention, described container material includes polyethylene, polypropylene, polrvinyl chloride, polyethylene terephthalate, polymethyl methacrylate, Merlon, polystyrene, polyvinyl alcohol contracting butyl ester, poly-(styrene-co-acrylonitrile), acrylonitrile-butadiene-styrene copolymer, polyether sulfone or PETG.
Disposable thermometer of the present invention, described array shape includes rectangular array, annular array or quadrangular array；Described array is made up of groove, and groove topography includes square, rectangle, trapezoidal, circular, triangle or pentalpha, and flute pitch is 1～3mm.
Disposable thermometer of the present invention, what described phase-change material occurred becomes solid-liquid phase change mutually；The method of described sign body temperature is the maximum temperature corresponding to separating surface of crystal and powder after the solid-liquid interface or recrystallization produced after phase-change material undergoes phase transition completely.
Beneficial effect
The disposable thermometer of the present invention have cost low, without sterilization and the advantage that uses safe and easy process.
Accompanying drawing explanation
Below according to the drawings and specific embodiments, the invention will be further described:
Fig. 1 is the structural representation of the present invention
Detailed description of the invention
Embodiment 1
AI3-28404 is made into together with n-docosane in varing proportions melting mixing the mixture of different phase transition temperature, then pulverizing to be sequentially filled above one according to phase transition temperature to have below cover plate by mixture has in the polyethylene board of array shape of square indentations, covers cover plate for sealing after filling.Clinical thermometer temperature range is 35～42 DEG C, with every 0.2 DEG C for a groove (Fig. 1 shown in), polyethylene board upper groove is of a size of 2 × 2mm2, deep 2mm, whole polyethylene groove area plate is wide is 1.5～4cm, is about 2～3cm.The position painted black of clinical thermometer cover plate respective slot.
During use, being put into by this clinical thermometer in oxter or mouth, groove area is placed on middle, oxter or does not all have in entrance.Taking out after 1 minute, the maximum temperature corresponding to phase-change material undergone phase transition completely in groove is body temperature.After clinical thermometer cools down recrystallization, then the maximum temperature corresponding to recrystallization phase-change material is then body temperature.
After clinical thermometer use is complete, centralized collection can carry out burning disposal.
Corresponding relation between table 1. composite phase-change material and temperature
Wherein, in form, ratio is mol ratio, lower same.
Embodiment 2
Tetradecanol is made into the mixture with different phase transition temperature together with pentadecanol melting mixing, and being then sequentially filled mixture pulverizing above one according to phase transition temperature has below cover plate in reeded polyethylene board, covers cover plate for sealing after filling.Clinical thermometer temperature range is 35～42 DEG C, with every 0.2 DEG C for a square indentations (Fig. 1 shown in), polyethylene board upper groove is of a size of 2 × 2mm2, deep 2mm, whole polyethylene groove area plate is wide is 1.5～4cm, is about 2～3cm.The position painted black of clinical thermometer cover plate respective slot.
Use and processing method is with embodiment 1.
Corresponding relation between table 2. composite phase-change material and temperature
Embodiment 3
By sour to the pentadecanol of different proportion and ten melting mixing together with the requirement of satisfied different phase transition temperatures, then mixture is pulverized the white crystal formed and is sequentially filled above one according to phase transition temperature to have below cover plate in reeded polyethylene terephthalate plate, after filling, cover cover plate for sealing.Clinical thermometer temperature range is 35～42 DEG C, with every 0.2 DEG C for a groove.Polyethylene terephthalate plate upper groove is of a size of 2 × 2mm2, deep 2mm, whole polyethylene terephthalate groove area plate is wide is 1.5～4cm, is about 2～3cm.The position of clinical thermometer cover plate respective slot is coated with au bleu.
Use and processing method is with embodiment 1.
Corresponding relation between table 3. composite phase-change material and temperature
Embodiment 4
By sour to the pentadecanol of different proportion and ten melting mixing together, AI3-28404 is together with n-docosane melting mixing, requirement with satisfied different phase transition temperatures, then respectively mixture is pulverized the white crystal formed and is filled in above one according to phase transition temperature successively interval to have below cover plate in reeded polyethylene terephthalate plate, after filling, cover cover plate for sealing.Clinical thermometer temperature range is 35～42 DEG C, with every 0.2 DEG C for a groove.Polyethylene terephthalate plate upper groove is of a size of 2 × 2mm2, deep 2mm, whole polyethylene terephthalate groove area plate is wide is 1.5～4cm, is about 2～3cm.The position of clinical thermometer cover plate respective slot is coated with au bleu.
Use and processing method is with embodiment 1.
Corresponding relation between table 4. composite phase-change material and temperature
Embodiment 5
It is sequentially filled phase-change material powder (phase-change material powder constitution is in Table 5 and table 6) above one according to the difference of phase transition temperature to have below cover plate in reeded polycarbonate plate, after filling, cover cover plate for sealing.Clinical thermometer temperature range is 35～42 DEG C, with every 0.2 DEG C for a groove.Polycarbonate plate upper groove is of a size of 2 × 2mm2, deep 2mm, whole polyethylene terephthalate groove area plate is wide is 1.5～4cm, is about 2～3cm.The position painted black of clinical thermometer cover plate respective slot.
Use and processing method is with embodiment one.
Corresponding relation between table 5. composite phase-change material and temperature
Corresponding relation between table 6. composite phase-change material and temperature
(note: positive Kui acid is positive ten carbonic acid, and Palmic acid is positive Palmitic acid, and stearic acid is positive 18 carbonic acid)
Embodiment 6
By Heneicosane and n-tricosane melting mixing in varing proportions, other fill conditions, using and burn same embodiment 1, the corresponding relation between its ratio composite phase-change material and temperature is with table 1.
Embodiment 7
By AI3-36122 and n-tetracosane melting mixing in varing proportions, other fill conditions, using and burn same embodiment 2, the corresponding relation between its ratio composite phase-change material and temperature is with table 2.
Embodiment 8
By positive hendecoic acid and positive ficocerylic acid melting mixing in varing proportions, other fill conditions, using and burn same embodiment 1, the corresponding relation between its ratio composite phase-change material and temperature is with table 1.
Embodiment 9
By positive ten tetra-carbonics and positive 15 carbonic acid melting mixing in varing proportions, other fill conditions, using and burn same embodiment 1, the corresponding relation between its ratio composite phase-change material and temperature is with table 1.
Embodiment 10
By methyl stearate and ethyl stearte melting mixing in varing proportions, other fill conditions, using and burn same embodiment 1, the corresponding relation between its ratio composite phase-change material and temperature is with table 1.
Embodiment 11
By methyl stearate and ethyl stearte melting mixing in varing proportions, other fill conditions, using and burn same embodiment 1, the corresponding relation between its ratio composite phase-change material and temperature is with table 1.
Embodiment 12
By methyl nonadecanoate and nonadecanoic acid ethyl ester melting mixing in varing proportions, other fill conditions, using and burn same embodiment 1, the corresponding relation between its ratio composite phase-change material and temperature is with table 1.
Embodiment 13
By 20 acid methyl ester and 20 acetoacetic esters melting mixing in varing proportions, other fill conditions, using and burn same embodiment 1, the corresponding relation between its ratio composite phase-change material and temperature is with table 1.
But, above-mentioned detailed description of the invention is illustrative of, and is to better make to skilled artisans appreciate that this patent, it is impossible to be not understood as this patent is included the restriction of scope；As long as any equivalent change made according to the disclosed spirit of this patent or modification, each fall within the scope that this patent includes.
Claims (10)
1. a disposable thermometer, it is characterized in that: phase-change material powder is positioned in the container of the definite shape that plastics are made, by have the phase-change material of different phase transition temperature undergo phase transition generation separating surface or again crystallization make phase-change material outward appearance change to characterize body temperature, described phase-change material includes aliphatic hydrocarbon, fatty alcohol, fatty acid, fatty acid ester；
Described aliphatic hydrocarbon includes AI3-36122～n-tetracosane；Described fatty alcohol includes positive tridecanol～cetyl alcohol；Described fatty acid includes positive ten carbonic acid～positive 18 carbonic acid；Described fatty acid ester includes methyl stearate, ethyl stearte, methyl nonadecanoate, nonadecanoic acid ethyl ester, 20 acid methyl ester, 20 acetoacetic ester fatty acid esters；
The phase-change material with different phase transition temperature refers to the mixture of two or three different phase-change materials；
Described definite shape is for including array shape, polygon or letter shape.
2. disposable thermometer according to claim 1, it is characterised in that: described phase-change material is the mixture of AI3-28404 and n-docosane, and the corresponding relation of its temperature and molar ratio is:
3. disposable thermometer according to claim 1, it is characterized in that: disposable thermometer according to claim 1, it is characterized in that: described phase-change material is the mixture of tetradecanol and pentadecanol, the corresponding relation of its molar ratio and temperature is:
4. disposable thermometer according to claim 1, it is characterised in that: described phase-change material is pentadecanol and the mixture of ten acid, and the corresponding relation of its molar ratio and temperature is:
5. disposable thermometer according to claim 1, it is characterised in that: described phase-change material is lauric acid/dodecanoic acid and the mixture of ten acid, and the corresponding relation of its molar ratio and temperature is:
6. disposable thermometer according to claim 1, it is characterised in that: described phase-change material is the mixture of stearic acid, the acid of positive Kui and Palmic acid, and the corresponding relation of its molar ratio and temperature is:
7. disposable thermometer according to claim 1, it is characterised in that: described phase-change material powder diameter ranges for 0.0001～2mm；One end of described container is connected to handle, and decreased food is 1～10cm；The temperature-measuring range of described body temperature is 35～42 DEG C, and temperature accuracy is 0.1～0.5 DEG C.
8. disposable thermometer according to claim 1, it is characterised in that: described container material includes polyethylene, polypropylene, polrvinyl chloride, polyethylene terephthalate, polymethyl methacrylate, Merlon, polystyrene, polyvinyl alcohol contracting butyl ester, poly-(styrene-co-acrylonitrile), acrylonitrile-butadiene-styrene copolymer, polyether sulfone or PETG.
9. disposable thermometer according to claim 1, it is characterised in that: described array shape includes rectangular array, annular array or quadrangular array；Described array is made up of groove, and groove topography includes square, rectangle, trapezoidal, circular, triangle or pentalpha, and flute pitch is 1～3mm.
10. the disposable thermometer described in claims 1, it is characterised in that: what described phase-change material occurred becomes solid-liquid phase change mutually；The method of described sign body temperature is the maximum temperature corresponding to separating surface of crystal and powder after the solid-liquid interface or recrystallization produced after phase-change material undergoes phase transition completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610160110.3A CN105784186B (en) | 2016-03-21 | 2016-03-21 | Disposable thermometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610160110.3A CN105784186B (en) | 2016-03-21 | 2016-03-21 | Disposable thermometer |
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| Publication Number | Publication Date |
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| CN105784186A true CN105784186A (en) | 2016-07-20 |
| CN105784186B CN105784186B (en) | 2019-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610160110.3A Active CN105784186B (en) | 2016-03-21 | 2016-03-21 | Disposable thermometer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108003839A (en) * | 2017-08-09 | 2018-05-08 | 浙江蓄冷能源科技有限公司 | Binary organic phase-change cold-storage material of non-frozen low-temperature space and preparation method thereof |
| CN112041648A (en) * | 2018-03-14 | 2020-12-04 | 泰坦公司 | Temperature rise and fall indicator using deep eutectic |
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| US4345470A (en) * | 1978-09-28 | 1982-08-24 | Akzona Incorporated | All plastic disposable thermometer |
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| CN102068715A (en) * | 2011-01-21 | 2011-05-25 | 宁波市胜源技术转移有限公司 | Disposable sanitary product |
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2016
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| CN101387556A (en) * | 2008-10-24 | 2009-03-18 | 于旭光 | Non-reversible high-temperature cueing apparatus and method |
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| CN103748445A (en) * | 2011-01-26 | 2014-04-23 | 英迪股份有限公司 | Critical temperature indicator and manufacturing method thereof |
| CN103748445B (en) * | 2011-01-26 | 2015-08-12 | 英迪股份有限公司 | Critical temperature indicator and manufacture method thereof |
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| 于欣 等: "有机/复合相变储能材料研究进展", 《动能材料》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108003839A (en) * | 2017-08-09 | 2018-05-08 | 浙江蓄冷能源科技有限公司 | Binary organic phase-change cold-storage material of non-frozen low-temperature space and preparation method thereof |
| CN112041648A (en) * | 2018-03-14 | 2020-12-04 | 泰坦公司 | Temperature rise and fall indicator using deep eutectic |
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| Publication number | Publication date |
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| CN105784186B (en) | 2019-01-15 |
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