CN202748153U - Thermometer - Google Patents
Thermometer Download PDFInfo
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- CN202748153U CN202748153U CN201220297621.7U CN201220297621U CN202748153U CN 202748153 U CN202748153 U CN 202748153U CN 201220297621 U CN201220297621 U CN 201220297621U CN 202748153 U CN202748153 U CN 202748153U
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Abstract
The utility model relates to the medical instrument field and specifically relates to a thermometer capable of reducing physical damages caused when temperature-sensing liquid flows to the outside. The thermometer comprises a thermometer main body consisting of a temperature-sensing bubble and a display column. The temperature-sensing liquid is contained by the temperature-sensing bubble. The thermometer further comprises a transparent protection film which is covered on the outer surface of the thermometer main body.
Description
Technical field
The utility model relates to medical instruments field, is specifically related to a kind of clinical thermometer.
Background technology
The clinical thermometer that uses at present, the temperature sensing liquid that holds in its bulb, is mercury.
But mercury belongs to noxious material, and when clinical thermometer was broken, the mercury in it can flow to the outside, and mercury generates mercury vapour at normal temperatures, and mercury vapour causes serious injury to health by nervous system and the bone network of breathing or skin contact invasion health.
The utility model content
The utility model provides a kind of clinical thermometer, can be so that clinical thermometer is difficult for broken.
The utility model provides a kind of clinical thermometer, comprises thermometer body, and it comprises bulb, and display column, holds temperature sensing liquid in the described bulb,, also comprises transparent protective film, and it is covered in the outside surface of described thermometer body.
In each embodiment of the utility model, preferably, the thickness of described transparent protective film is 0.1mm-0.2mm.
In each embodiment of the utility model, preferably, the extensibility of described transparent protective film is 150%-300%.
In each embodiment of the utility model, preferably, described transparent protective film is provided with the window of the scale that exposes described display column.
In each embodiment of the utility model, preferably, the described transparent protective film of multilayer is covered in the outside surface of described thermometer body.
Clinical thermometer by each embodiment of the utility model provides, can bring following beneficial effect:
By using the mixed solution that is comprised of gallium, indium, tin and zinc as temperature sensing liquid, in the time of outside temperature sensing liquid is left to clinical thermometer, it less than the injury of mercury vapour to health, has reduced the injury to health to the injury of health;
By the outside surface at clinical thermometer transparent protective film is set, can be so that clinical thermometer be difficult for broken;
By at transparent protective film window being set, can be convenient to calibrate.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in below describing only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawing illustrated embodiments other embodiment and accompanying drawing thereof.
Fig. 1 is the preparation method's of the utility model temperature sensing liquid the process flow diagram of embodiment;
Fig. 2 is the structural representation of the embodiment of the utility model clinical thermometer.
Embodiment
Below with reference to accompanying drawing the technical scheme of each embodiment of the utility model is carried out clear, complete description, obviously, described embodiment only is a part of embodiment of the present utility model, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are resulting all other embodiment under the prerequisite of not making creative work, all belong to the scope that the utility model is protected.
The utility model provides a kind of temperature sensing liquid, and its composition comprises: gallium, indium, tin and zinc, and take parts by weight: the content of described gallium is as 60 parts-68 parts; The content of described indium is 19 parts-25 parts; The content of described tin is 11 parts-17 parts; The content of described zinc is 0.5 part-2 parts.
Described temperature sensing liquid can keep stable liquid quaternary eutectic liquid alloy in 5 °-1450 ° scope; The toxic of described temperature sensing liquid is low, and volatility is low, and is less on the impact that health causes; Described temperature sensing liquid has higher thermal linear expansion coefficient simultaneously, is convenient to the displays temperature scale; Described temperature sensing liquid has higher cohesion, by the stationary point structure that arranges at clinical thermometer, can reach the purpose of the peak of the indication body temperature of surveying.
In parts by weight, the content of gallium can be 60 parts, 61 parts, 62 parts, 63 parts, 64 parts, 64.5 parts, 65 parts, 68 parts etc.
In parts by weight, the content of indium can be 19 parts, 20 parts, 21 parts, 22 parts, 23 parts, 24 parts, 25 parts etc.
In parts by weight, the content of tin can be 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts etc.
In parts by weight, the content of zinc can be 0.5 part, 1.0 parts, 1.2 parts, 1.5 parts, 2 parts etc.
In each embodiment of the utility model, preferably, the content of described gallium is 62 parts-65 parts; The content of described indium is 20 parts-23 parts; The content of described tin is 12 parts-15 parts; The content of described zinc is 1 part-1.5 parts.Select according to concrete technology, better in this scope.
The utility model provides a kind of preparation method of temperature sensing liquid, is 10 in vacuum tightness
-4Carry out following step more than the torr:
The liquid towards gallium carries out purification processes, so that the purity of described gallium is 99%-99.996%;
The liquid towards indium carries out purification processes, so that the purity of described indium is 99%-99.996%;
Be that the liquid tin of 99%-99.99% and liquid Zn that purity is 99%-99.99% are mixed with the gallium after processing, indium and purity, obtain mixed solution; Wherein, take parts by weight: the content of described gallium is 60 parts-68 parts; The content of described indium is 19 parts-25 parts; The content of described tin is 11 parts-17 parts; The content of described zinc is 0.5 part-2 parts;
Described mixed solution is heated to 400 °-550 °;
The described mixed solution maintenance constant temperature that temperature is reached 400 °-550 ° continued heating more than 4 hours, obtained temperature sensing liquid.
The liquid towards gallium carries out the step of purification processes and step that the liquid towards indium carries out purification processes does not have sequencing, also can carry out simultaneously.When gallium, indium, tin and zinc are mixed, can stir while mixing.
In each embodiment of the utility model, preferably, carry out the step of purification processes at described liquid towards gallium, comprising: the liquid towards gallium carries out dehydrogenation; Preferably, in being 400 °-450 ° scope, temperature carries out dehydrogenation.This step is that the hydrogen in the liquid gallium is removed, and improves the purity in the liquid gallium.
In each embodiment of the utility model, preferably, carry out the step of purification processes at described liquid towards indium, comprising: the liquid towards indium utilizes the zone melting purification method to carry out purification processes; Preferably, the temperature province of described zone melting purification method is 1100 °-1150 °.Should be understood that the zone melting purification method is prior art, is not described in detail at this.Adopting in this embodiment temperature province is that 1100 °-1150 ° scope is purified, and temperature can be 1100 °, 1120 °, 1130 ° etc.Select according to concrete technology.
In each embodiment of the utility model, preferably, keep constant temperature to continue the step of heating more than 4 hours at described mixed solution, comprising: when keeping constant temperature to continue heating, described mixed solution is stirred.Can accelerate mixing velocity by stirring, so that mix more even.
The utility model provides a kind of clinical thermometer, comprise thermometer body, it comprises bulb, and display column, hold temperature sensing liquid in the described bulb,, the composition of described temperature sensing liquid comprises gallium, indium, tin and zinc, and take parts by weight: the content of described gallium is as 60 parts-68 parts, and the content of described indium is 19 parts-25 parts, the content of described tin is 11 parts-17 parts, and the content of described zinc is 0.5 part-2 parts.
What deposit in the described bulb, is the temperature sensing liquid that comprises gallium, indium, tin and zinc, and described temperature sensing liquid can keep stable liquid quaternary eutectic liquid alloy in 5 °-1450 ° scope; The toxic of described temperature sensing liquid is low, and volatility is low, and is less on the impact that health causes; Described temperature sensing liquid has higher thermal linear expansion coefficient simultaneously, is convenient to the displays temperature scale; Described temperature sensing liquid has higher cohesion, by the stationary point structure that arranges at clinical thermometer, can reach the purpose of the peak of the indication body temperature of surveying.
In each embodiment of the utility model, preferably, further comprise: transparent protective film, it is covered in the outside surface of described thermometer body.Can protect clinical thermometer not smashed by external force; Also can when clinical thermometer is broken, the temperature sensing liquid in the clinical thermometer be wrapped, prevent contaminated environment.
In each embodiment of the utility model, preferably, the thickness of described transparent protective film is 0.1mm-0.2mm.The thickness of transparent protective film can be 0.11 millimeter (mm), 0.12mm, 0.13mm, 0.15mm, 0.18mm, 0.2mm etc.According to process choice.Wherein, millimeter (mm), same in full.
In each embodiment of the utility model, preferably, the extensibility of described transparent protective film is 150%-300%.The extensibility of transparent protective film can be 150%, 160%, 170%, 190%, 220%, 240%, 270%, 300% etc., selects according to concrete technology.
In each embodiment of the utility model, preferably, described transparent protective film is provided with the window of the scale that exposes described display column.To should be understood that the scale of observing display column in order being more convenient for, will window to be set on the transparent protective film, the shape of window can for ellipse, rectangle or other special shape, be set according to technique.
In each embodiment of the utility model, preferably, the described transparent protective film of multilayer is covered in the outside surface of described thermometer body.The multi-layer transparent diaphragm can prevent better that clinical thermometer is broken.
The concrete method that is used for making clinical thermometer comprises the steps:
1. the inwall of preprepared thin glass tube vacuumized negative 2 torrs to 10; Heating makes it near soft state to thin glass tube with the tip of gaslight flame; The round core center clamps of thin glass tube is gone out the passage of a band shape with the tong-like cutter head of wolfram steel system, this passage plays the stationary point, namely when the temperature sensing liquid expanded by heating in the clinical thermometer bulb,, pass through this banded passage with the droplet shape, this moment, the display column top was the maximum temperature of display measurement point, when clinical thermometer is taken out measured temperature point, can correctly read the maximum temperature of measured temperature point.
2. will and clamp the round core material that contracted for the special-purpose little triangular glass material of the clinical thermometer that shows display column and be fused into the inner core materials in the tube.
3. round core material one end of the inner core materials in the tube that will connect with gas burner be heated to approach when softening with the wolfram steel cutter with its spread to one horn-like.
4. the special-purpose outer casing glass tube material of clinical thermometer is cut into 280 millimeters long, and the heart is processed into gas burner and draws the shoulder material therein.
5. the hydraucone size of inner core materials in the tube is matched with the position of drawing the shoulder material.
6. the materials in the tube erect through matching is placed on the stainless steel frame, puts into an amount of low-melting-point glass welding powder, then put into to heat in the baking oven to 465 degree together with stainless steel stent and carry out the welding of watery fusion glass.
7. the materials in the tube of welding forming are sealed into bulb, in bulb, one side with gas burner.
8. the end of bulb, that will seal the bubble semiproduct is holded up up and is put in the stainless cylinder of steel, be evacuated to together with stainless cylinder of steel more than 10 negative 4 torrs, and the retention time is more than 8 hours, under vacuum state, synthetic temperature sensing liquid is put into stainless cylinder of steel, be that a liquid level overflow device is arranged in the stainless cylinder of steel, in order to unnecessary temperature sensing liquid is overflowed, and then pour pure nitrogen gas and 3 the atmospheric pressure static pressure that pressurize make after 6 hours in the bulb, and to fill with sufficient temperature sensing liquid.
9. Water Tank with Temp.-controlled put in the semiproduct that will fill with temperature sensing liquid, unnecessary temperature sensing liquid overflowed mourn with gas burner unnecessary little triangular glass material burning-off to be embarked on journey afterwards.
10. will cut in the Water Tanks with Temp.-controlled that semiproduct behind the core are placed on first 37 degree and draw the sign that the line of ink marker is made 37 degree points on the top of display column with pen, same principle is drawn the sign of 41 degree again.
11. measure the distance between 37 degree points and the 41 degree points at two, mix with in advance printed correspondingly be with the graduated scraps of paper, cling with glue and then put into stove room and go the s processing.
12. unnecessary material is removed and seals with gas burner and form a complete clinical thermometer.
In one embodiment, the outside surface of clinical thermometer can also arrange fluorescence coating, is convenient to observe scale in the relatively poor situation of light.Fluorescence coating can be down to being arranged on the scale zone.
In one embodiment, as shown in Figure 1, the preparation method of temperature sensing liquid comprises the steps:
Following step is 10 in vacuum tightness
-4Carry out more than the torr; Should be understood that for vacuum tightness more than or equal to 10
-4Torr.
Step 101 is: the liquid towards gallium carries out dehydrogenation, so that the purity of gallium is 99%-99.996%.This step can be in temperature be 400 ° of-450 ° of scopes, vacuum tightness is 10
-4More than carry out, preferably, the purity of the gallium after the purification is 99.99%.
Step 102 is: the liquid towards indium utilizes the zone melting purification method to process, so that the purity of indium is 99%-99.996%.This step can be carried out in temperature is 1100 ° of-1150 ° of scopes, and preferably, the purity of the indium after the purification is 99.99%.
Do not have sequencing between step 101 and the step 102, can carry out simultaneously yet.
Step 103 is: the gallium after will processing, indium and purity are that the liquid tin of 99%-99.99% and liquid Zn that purity is 99%-99.99% are mixed, and obtain mixed solution.Adopt the form that stirs while mixing more even.
Step 104 is: mixed solution is heated to 400 °-550 °.Can when heating, stir simultaneously,
Step 105 is: the mixed solution that temperature is reached 400 °-550 ° keeps constant temperature to continue heating more than 4 hours, stirs simultaneously, obtains temperature sensing liquid.The constant temperature of this step can have certain temperature gap scope, as long as be no more than difference range.
In one embodiment, as shown in Figure 2, clinical thermometer comprises: thermometer body 1, bulb, 2, display column 3 and transparent protective film 4.Transparent protective film 4 covers the outside surface of thermometer body 1, and the temperature sensing liquids in the bulb, 2 are gallium, indium, tin and zinc, and wherein, take parts by weight: the content of gallium is as 60 parts-68 parts; The content of indium is 19 parts-25 parts; The content of tin is 11 parts-17 parts; The content of zinc is 0.5 part-2 parts.Transparent protective film 4 can protect clinical thermometer not smashed by external force; Also can when clinical thermometer is broken, the temperature sensing liquid in the clinical thermometer be wrapped, prevent contaminated environment.
Temperature sensing liquid that provides by each embodiment of the utility model and preparation method thereof and clinical thermometer, can bring following beneficial effect:
By using the mixed solution that is comprised of gallium, indium, tin and zinc as temperature sensing liquid, in the time of outside temperature sensing liquid is left to clinical thermometer, it less than the injury of mercury vapour to health, has reduced the injury to health to the injury of health;
By the outside surface at clinical thermometer transparent protective film is set, can be so that clinical thermometer be difficult for broken;
By at transparent protective film window being set, can be convenient to calibrate.
The various embodiment that the utility model provides can be as required in any way mutually combination, the technical scheme that obtains by this combination is also in scope of the present utility model.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also comprises these changes and modification interior.
Claims (5)
1. a clinical thermometer comprises thermometer body, and it comprises bulb, and display column, holds temperature sensing liquid in the described bulb,, it is characterized in that:
Also comprise transparent protective film, it is covered in the outside surface of described thermometer body.
2. clinical thermometer as claimed in claim 1 is characterized in that, the thickness of described transparent protective film is 0.1mm-0.2mm.
3. clinical thermometer as claimed in claim 1 is characterized in that, the extensibility of described transparent protective film is 150%-300%.
4. clinical thermometer as claimed in claim 1 is characterized in that, described transparent protective film is provided with the window of the scale that exposes described display column.
5. clinical thermometer as claimed in claim 1 is characterized in that, the described transparent protective film of multilayer is covered in the outside surface of described thermometer body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220297621.7U CN202748153U (en) | 2012-06-21 | 2012-06-21 | Thermometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220297621.7U CN202748153U (en) | 2012-06-21 | 2012-06-21 | Thermometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202748153U true CN202748153U (en) | 2013-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220297621.7U Expired - Lifetime CN202748153U (en) | 2012-06-21 | 2012-06-21 | Thermometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202748153U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134603A (en) * | 2013-02-21 | 2013-06-05 | 徐学海 | Mercury-free clinical thermometer and production method thereof |
| CN103256993A (en) * | 2013-04-22 | 2013-08-21 | 汕头大学医学院第一附属医院 | Anti-break mercury thermometer |
-
2012
- 2012-06-21 CN CN201220297621.7U patent/CN202748153U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134603A (en) * | 2013-02-21 | 2013-06-05 | 徐学海 | Mercury-free clinical thermometer and production method thereof |
| CN103134603B (en) * | 2013-02-21 | 2015-06-24 | 徐学海 | Mercury-free clinical thermometer and production method thereof |
| CN103256993A (en) * | 2013-04-22 | 2013-08-21 | 汕头大学医学院第一附属医院 | Anti-break mercury thermometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 224005 No.36 Yandu West Road, Yandu District, Yancheng City, Jiangsu Province (b) Co-patentee after: Jiangsu Chenyu Medical Equipment Co.,Ltd. Patentee after: Xu Xuehai Address before: 224002 room 1, building 107, Sun Yat ho Road, workers' and peasants' road, Yancheng City, Jiangsu Co-patentee before: JIANGSU YUYUE MEDICAL INSTRUMENT CO.,LTD. Patentee before: Xu Xuehai |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |
|
| CX01 | Expiry of patent term |