JP2017125741A - thermometer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paste-on thermometer capable of preferably measuring body temperature.SOLUTION: A clinical thermometer 1 includes: a sheet-like base material 11 at least a part of which has light transmissivity; temeperature indicating materials 12 provided at the part having the light transmissivity on a lower surface of the base material 11; and adhesive layers 14 provided on the lower surface of the base material 11. The temeperature indicating materials 12 are formed in a temperature measurement area 100, and cholesteric liquid crystal is used for them. The cholesteric liquid crystal changes its color according to temperature. Results of temperature measurement can be recorded in a recording area 200 on the spot by using seals 13.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a thermometer for measuring body temperature and the like.

  There are various types of thermometers, but the mainstream is to measure the temperature by pressing the temperature sensor at the tip against the measurement site such as the armpit or ear. However, it is difficult to use, for example, it is necessary to hold the temperature sensor against the measurement site by holding a thermometer by hand.

  On the other hand, a stick-type thermometer that is used by sticking to the skin or the like has also been developed. As an example, there is a thin one in which a cholesteric liquid crystal that changes color according to temperature is provided on a sheet-like base material, and examples thereof are described in Patent Documents 1-3. Such a thermometer is affixed to a measurement site of the body, can grasp the body temperature by the color change of the liquid crystal, and is easy to handle.

Japanese Unexamined Patent Publication No. 01-230692 JP 07-103829 A Special Table 2002-527720

  However, in the thermometer described in Patent Documents 1-3, a cholesteric liquid crystal is provided on the surface of the base material opposite to the surface to be attached to the skin or the like. For this reason, when the thermometer is attached to the skin or the like, the base material is interposed between the cholesteric liquid crystal and the skin or the like, which is inferior in terms of instantaneousness and accuracy of temperature measurement.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an affixing type thermometer that can suitably measure body temperature and the like.

  The present invention for solving the above-described problem is provided in a sheet-like base material having at least a part of light-transmitting property and a portion having the light-transmitting property on one surface of the base material. A thermometer having a temperature indicating material that changes color and an adhesive layer provided on the one surface of the substrate.

  The thermometer of the present invention can grasp the temperature by visually observing the color of the temperature indicating material from the outside with the adhesive layer attached to the skin, etc., and is easier to handle than the conventional general thermometer. Body temperature, etc. can be easily measured by pasting anywhere on the back, forehead, etc. without any discomfort. Further, when the thermometer is attached to the skin or the like, no base material is interposed between the temperature indicating material and the skin or the like, so that heat can be transmitted to the temperature indicating material in a short time and the body temperature and the like can be measured instantaneously and accurately.

It is desirable that a gel-like coolant is provided as the adhesive layer. Further, it is desirable that the color change of the temperature indicating material is reversible and the coolant is detachable.
By using the above coolant as the adhesive layer, it is possible to measure the temperature with the temperature indicating material while cooling with the coolant. Also, if the color change of the temperature indicator is reversible, by making the coolant removable, the thermometer can be used repeatedly while replacing the coolant as needed, and when the cooling capacity of the coolant is lost There is no waste and there is no waste.

A cholesteric liquid crystal is preferably used as the temperature indicating material.
By using the cholesteric liquid crystal as the temperature indicating material, it is possible to appropriately grasp the color change according to the temperature.

Further, it is desirable that the color change of the temperature indicating material is reversible and a recording area for recording the temperature measurement result is provided. Furthermore, it is desirable that the recording area is for recording by peeling off a seal at a position corresponding to the temperature measurement result.
When the color change of the temperature indicating material is reversible, the measurement result corresponding to the color of the temperature indicating material can be immediately recorded on the spot by providing a recording area in the thermometer. By using the seal method as described above, the measurement result can be easily recorded.

It is desirable that the recording area is detachable. For example, the recording area may be configured as a sticker attached to the base material, or the recording area may be configured by holding a recording sheet by a holding unit.
In this way, by making the recording area itself detachable, even after recording the measurement results in the recording area of the thermometer, it is exchanged, and the measurement results are newly recorded and accumulated. Can do. In the meantime, the thermometer can be used repeatedly, and when the measurement result is recorded in the recording area, it is not used up and there is no waste. The recording area may be constituted by a seal or may be constituted by holding a sheet by a holding part. In either case, the recording area can be easily exchanged.

  According to the present invention, it is possible to provide a sticking-type thermometer that can measure body temperature and the like.

The figure which shows the thermometer 1. Diagram showing temperature measurement by thermometer 1 Diagram showing recording of measurement results The figure which shows the thermometer 1 ' Diagram showing recording areas 200 ', 200 " The figure which shows the thermometer 1a The figure which shows the thermometer 1a 'and 1a " The figure which shows the thermometer 1b The figure which shows the thermometer 1c The figure which shows the thermometer 1d The figure which shows the thermometer 1e

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

[First embodiment]
FIG. 1 is a view showing a thermometer 1 (thermometer) according to the first embodiment of the present invention. Fig.1 (a) is the figure which looked at the thermometer 1 from the top, FIG.1 (b) is sectional drawing of the thickness direction by line AA of Fig.1 (a).

  The thermometer 1 is affixed to the skin or the like and measures body temperature. The thermometer 1 is provided with a temperature measuring region 100 and a recording region 200 on a sheet-like base material 11, and is configured to be thin as a whole.

  The substrate 11 is formed of a resin such as PET (polyethylene terephthalate), and at least a part thereof is a transparent portion having translucency. A temperature indicator 12 to be described later is provided in this transparent portion. Other portions may be transparent or opaque.

  The temperature measuring region 100 is a region for measuring the temperature and displaying the measurement result, and the temperature indicating material 12 is provided on the lower surface (one surface) of the base material 11. In addition, the lower surface of the base material 11 is a surface on the attachment side when the thermometer 1 is attached to the skin or the like.

  The temperature indicating material 12 is a thermochromic material that changes color according to temperature. In this embodiment, a material that changes color when a predetermined temperature is reached is used. Further, in the present embodiment, the temperature indicating material 12 is a material that reversibly changes color (reversible thermochromic material), and cholesteric liquid crystal is used here.

  The temperature indicating material 12 can be formed on the base material 11 by printing, for example, but the forming method is not limited thereto. Further, the color change means a change in the apparent color, and includes a change in transparency.

  A cholesteric liquid crystal is known but briefly explained. The liquid crystal molecules have a structure in which the major axis direction of the liquid crystal molecules changes spirally between the upper and lower layers. The period of is changed. As a result, the optical properties of the cholesteric liquid crystal change to change the color appearance, and the temperature of the cholesteric liquid crystal can be grasped by this color.

  As the cholesteric liquid crystal, known ones can be used, and the temperature at which the color changes can be varied depending on the amount of additives to be blended. As described above, the color change of the cholesteric liquid crystal is reversible, and the color is restored when the temperature is restored. Since the material of the cholesteric liquid crystal and the above-mentioned additives are known as described in Patent Document 1 and the like, detailed description thereof is omitted.

  In the present embodiment, seven cholesteric liquid crystals that change color when the threshold value is 36.0, 36.5, 37.0, 37.5, 38.0, 38.5, or 39.0 ° C. or more are provided as the temperature indicator 12. These temperature indicating materials 12 are arranged in a line at intervals, and a corresponding threshold value is displayed in the vicinity of each temperature indicating material 12. In the present embodiment, the threshold value is set in increments of 0.5 ° C. However, the threshold value is not limited to this, and may be set in increments of 1 ° C., for example.

  The recording area 200 is an area for recording the temperature measurement result. In the example of FIG. 1A, the measurement result for three times can be recorded. In the present embodiment, the measurement result for one time can be recorded using the seven seals 13 arranged in a line along the arrangement of the temperature indicating materials 12. The seal 13 is provided at a position corresponding to each temperature indicating material 12. In this embodiment, the color of the seal 13 is different from that of the base material 11. A method for recording the measurement result by the seal 13 will be described later.

  As shown in FIG.1 (b), the adhesion layer 14 is provided in the lower surface of the base material 11, ie, the same surface as the surface in which the temperature indicating material 12 was formed. The pressure-sensitive adhesive layer 14 is provided on almost the entire bottom surface of the substrate excluding the formation range of the temperature indicating material 12 (see the range B surrounded by the dotted line in FIG. 1A). As the adhesive layer 14, an acrylic adhesive, a gel adhesive, a silicone adhesive, or the like that is not harmful to the body is used.

  A protective film 18 made of resin or the like is provided on the lowermost surface of the thermometer 1. The protective film 18 is peeled off, and the body temperature can be measured by attaching the thermometer 1 to the skin or the like of the measurement site with the adhesive layer 14 (see FIG. 2). At this time, the temperature indicating material 12 formed on the same surface as the adhesive layer 14 in the base material 11 comes into direct contact with the skin or the like.

  When the thermometer 1 is attached to the measurement site, the color of the temperature indicating material 12 changes as shown in FIG. 3 according to the temperature of the measurement site. Since the temperature indicating material 12 is provided in the transparent portion of the base material 11, the color of the temperature indicating material 12 can be visually observed from the outside in a state where the thermometer 1 is attached to the measurement site. In the present embodiment, at the predetermined timing, the temperature indicating material 12 whose color has changed is visually checked with the highest threshold value, and the seal 13 at the position corresponding to the threshold value is peeled off.

  In the example of FIG. 3, in the third temperature measurement, the temperature of the measurement site is between 37.5 ° C. and 38.0 ° C., and the color of the temperature indicating material 12 up to 37.5 ° C. is changed. Therefore, the seal 13 at a position corresponding to 37.5 ° C. is peeled off as indicated by an arrow. Then, the appearance of the position where the seal 13 is peeled off changes to the color of the base (base material 11), and thus the measurement result can be recorded. As described above, the measurement result for three times can be recorded in the recording area 200. For example, body temperature at morning and noon can be measured at a hospital or the like, and the change in the body temperature can be grasped by recording the measurement result.

  As described above, the thermometer 1 according to the present embodiment can grasp the temperature by visually observing the color of the temperature indicating material 12 from the outside in a state where the thermometer 1 is attached to the skin or the like with the adhesive layer 14. Compared to easy handling, body temperature can be easily measured by sticking anywhere on the arm, back, forehead, etc. For example, the thermometer 1 can be attached to the infant's back so that the infant will not accidentally remove it. In addition, when the thermometer 1 is attached to the skin or the like, the base material 11 is not interposed between the temperature indicating material 12 and the skin, and heat is transmitted to the temperature indicating material 12 in a short time, so that the body temperature can be measured instantaneously and accurately. it can. In addition, since power is not required for temperature measurement, it can be used even in cases where power cannot be secured, such as during a disaster.

  In this embodiment, since the color change of the temperature indicating material 12 is reversible, the thermometer 1 can be used repeatedly. By providing the recording area 200 in the thermometer 1, the measurement result corresponding to the color of the temperature indicating material 12 can be immediately recorded on the spot. It can be carried out. As described above, the measurement result can be easily recorded by adopting the seal method in which the recording is performed by removing the seal 13 at the position corresponding to the measurement result as described above. Further, by using a cholesteric liquid crystal as the temperature indicating material 12, it is possible to appropriately grasp a change in color according to the temperature.

  However, the present invention is not limited to this. For example, in this embodiment, the body temperature is measured, but the temperature of an object or the like can also be measured.

  Further, the temperature indicator 12 is not particularly limited as long as it is a thermochromic material that changes color according to temperature, and as a reversible thermochromic material, a metal complex salt or condensed aromatic ring compound as shown in Patent Document 3 other than cholesteric liquid crystal. Etc. are also available. Further, as will be described later, an irreversible thermochromic material whose color change is irreversible can also be used. Since the irreversible thermochromic material is also known as described in Patent Document 3 and the like, detailed description thereof is omitted.

  Furthermore, the structure of the temperature measurement area | region 100 or the recording area | region 200, the planar shape of the base material 11, the temperature indication material 12, the plane arrangement | positioning of the adhesion layer 14, etc. are not specifically limited. For example, the planar shape of the base material 11 can be a heart shape. In the present embodiment, the measurement results for three times can be recorded in the recording area 200. However, the recording area 200 may record four or more measurement results, or record the measurement results for one or two times. It may be.

  Furthermore, as shown in the thermometer 1 ′ of FIG. 4, a protective layer 15 for protecting the temperature indicating material 12 can be provided on the lower surface of the base material 11 so as to cover the temperature indicating material 12. The protective layer 15 can be formed of resin or the like and does not affect the color change characteristics of the temperature indicating material 12.

  Further, the recording area 200 is not limited to the seal type as described above. For example, as shown in part of the upper surface of the substrate in FIG. 5A, the recording region 200 ′ is made a scratch type, and the scratch (13) at the position corresponding to the measurement result is rubbed to rub the base (base material 11) color. The appearance may be changed so that the measurement result can be recorded.

  In the example of FIG. 5A, the temperature corresponding to the scratch portion 13 'is printed in advance on the substrate 11, and when the scratch portion 13' is rubbed, the temperature notation can be visually confirmed. For this reason, in the example of FIG. 5A, the color of the scratch portion 13 ′ is different from the color of the substrate 11, but even if the color is the same, temperature can be recorded by rubbing the scratch portion 13 ′. . It is also possible to carry out a similar temperature notation on the scratch portion 13 '. The same applies to the case where the seal 13 is used as in the recording area 200 described above.

  In addition, as shown in a part of the cross section in FIG. 5B, the recording area 200 ″ may be a push-down type. That is, a hollow dome portion 13 ″ made of plastic or the like is formed in the recording area 200 ″, and the measurement result. When the dome portion 13 ″ located at the position corresponding to is pressed, the dome portion 13 ″ is depressed, and the measurement result can be recorded by changing the shape.

  Furthermore, the recording area can be of a writing type in which a check symbol or the like is written in a cell corresponding to the measurement result, or the temperature of the measurement result is written in the entry column. However, there is the trouble that a pen or the like is required for writing.

  Hereinafter, other examples of the present invention will be described as second to sixth embodiments. Each embodiment will be described with respect to differences from the embodiments described so far, and the same points will be denoted by the same reference numerals in the drawings and the like, and description thereof will be omitted. In addition, the configurations described in each embodiment including the first embodiment can be used in combination as necessary.

[Second Embodiment]
FIG. 6 is a view showing a cross section similar to FIG. 1B for a thermometer 1a according to the second embodiment. The thermometer 1a of this embodiment is different from that of the first embodiment in that a coolant 16 is provided as an adhesive layer on the lower surface of the substrate 11. The planar arrangement of the coolant 16 is the same as that of the adhesive layer 14 of the first embodiment, and is provided on almost the entire lower surface of the base material excluding the formation range of the temperature indicating material 12 (see the range B in FIG. 1A).

  As the coolant 16, a gel-like member having a high water content as used in a conventional cooling gel sheet can be used. Such a gel-like member is known and will not be described in detail.

  When the protective film 18 on the lowermost surface of the thermometer 1 a is peeled off and the thermometer 1 a is attached to the skin or the like of the measurement site with the coolant 16, the body temperature of the measurement site can be measured with the temperature indicator 12 while cooling with the coolant 16.

  In the present embodiment, the coolant 16 is provided on substantially the entire lower surface of the base material 11, but the planar arrangement of the coolant 16 is not limited to this. For example, it is possible to provide the coolant 16 only in the temperature measuring region 100 (excluding the formation range of the temperature indicating material 12) and omit the coolant 16 in the recording region 200. The same applies to the planar arrangement of the adhesive layer 14 of the first embodiment.

  Further, as shown in the thermometer 1a ′ of FIG. 7A, it is possible to adopt a configuration in which a sheet-like heat insulating layer 17 is provided on the lower surface of the coolant 16, and the temperature indicating material 12 is provided on the lower surface of the heat insulating layer 17. It is. In this case, the coolant 16 and the heat insulating layer 17 are also translucent so that the color change of the temperature indicating material 12 can be visually observed from the upper surface side of the substrate 11. 7B, the upper surface of the heat insulating layer 17a may have a substantially arc-shaped curved surface. In this case, the coolant 16 can be easily attached to the skin or the like.

[Third embodiment]
FIG. 8A is a view showing a thermometer 1b according to the third embodiment in the same cross section as FIG. This thermometer 1b is different from the second embodiment in that the coolant 16 is detachably provided on the base material 11. The coolant 16 is affixed to the lower surface of the base material 11 via the adhesive layer 19.

  Although the thermometer 1b peels off the protective film 18 and affixes it on skin etc. and performs temperature measurement, the coolant 16 can be replaced | exchanged as needed. For example, when the cooling capacity is lost, as shown in FIG. 8B, the coolant 16 (and the adhesive layer 19) is removed from the substrate 11, and then a new coolant 16 is attached to the substrate 11.

  As shown in FIG. 8C, protective films 18 are pasted on the upper and lower sides of the replacement coolant 16 (and the adhesive layer 19), and the protective film 18 on the adhesive layer 19 side is peeled off. ), The coolant 16 can be attached to the lower surface of the substrate 11 via the adhesive layer 19.

  In the third embodiment, by making the coolant 16 detachable, the thermometer 1b can be used repeatedly while replacing the coolant 16 as necessary, and when the coolant 16 loses its cooling capacity, it is used up. There will be no waste.

[Fourth Embodiment]
FIG. 9 is a view showing a thermometer 1c according to the fourth embodiment. Fig.9 (a) is the figure which looked at the thermometer 1c from the top, FIG.9 (b) is sectional drawing of the perpendicular direction by line CC of Fig.9 (a).

  The thermometer 1c of this embodiment is different from that of the first embodiment in terms of the configuration and usage method of the temperature indicating material 12a.

  That is, the temperature indicating material 12a of this embodiment does not change its color when it reaches a predetermined temperature as in the first embodiment, but changes its color continuously according to the temperature. Further, the temperature indicating material 12a is an irreversible color change (irreversible thermochromic material), and the color once changed does not return to the original color even when the temperature is restored.

  Further, on the side of the temperature indicating material 12a on the upper surface of the base material, a reference 20 indicating the correspondence between the color of the temperature indicating material 12a and the temperature is formed by printing or the like. Note that the display form of the reference 20 is not limited to the example of FIG. For example, it may be an annular shape surrounding the temperature indicating material 12a.

  The thermometer 1c can also measure the body temperature by peeling off the protective film 18 and attaching it to the skin or the like of the measurement site with the adhesive layer 14. However, since the temperature indicating material 12a undergoes irreversible color change according to the temperature, the maximum value of the body temperature during the measurement period is displayed as the color of the temperature indicating material 12a, and the body temperature can be grasped by referring to the reference 20.

  Since the color of the temperature indicating material 12a does not return to the original color, the color indicating temperature changing material itself becomes a recorded material of the measurement result, and there is no need to provide the recording area 200 and record the measurement result as in the first embodiment. The thermometer 1c is used up, and the next time the body temperature is measured, a new thermometer 1c is used.

  The temperature indicating material 12a of the present embodiment can also be a reversible thermochromic material as in the first embodiment. In that case, if the recording area 200 substantially the same as that of the first embodiment is provided, the temperature can be increased. These measurement results can be recorded and can be used repeatedly. Conversely, an irreversible thermochromic material can be used as the temperature indicating material 12 of the first embodiment. In this case, the recording area 200 can be omitted for the same reason as described above.

[Fifth Embodiment]
FIG. 10A shows a thermometer 1d according to the fifth embodiment. This thermometer 1d is different from the first embodiment in that the recording area itself is detachable.

  That is, the recording area 200 a of the present embodiment is configured by attaching the recording sticker 201 to the upper surface of the base material 11. As in the first embodiment, three times of measurement results can be recorded on the recording sticker 201. The recording method can also be a seal type or a scratch type as in the first embodiment. In the present embodiment, the recording sticker 201 is provided with a space 2011 in which the measurement date and time can be entered.

  After recording the measurement results for three times on the recording sticker 201, the recording sticker 201 is peeled off and replaced with a new one. As shown in FIG. 10B, a plurality of replacement recording stickers 201 are prepared by being pasted on the mount 21, and one sheet is peeled off from the mount 21 and is pasted on the recording area 200 a of the substrate 11. The recording sticker 201 after recording can be affixed to a vacant part of the mount 21. Thus, the body temperature can be measured and recorded while the recording sticker 201 is replaced, and accumulated as a temperature measurement history.

  As described above, in the fifth embodiment, by making the recording area itself detachable, it is exchanged even after recording the measurement result in the recording area 200a, and the measurement result is newly recorded and measured. The result can be accumulated. In the meantime, the thermometer 1d can be used repeatedly, and when recording is completed in the recording area 200a, it is not used up and there is no waste. Further, since the recording area 200a is constituted by the recording sticker 201, it can be easily replaced.

[Sixth Embodiment]
Fig.11 (a) is a figure which shows the thermometer 1e which concerns on 6th Embodiment. The thermometer 1e of the sixth embodiment is also different from the first embodiment in that the recording area itself is detachable.

  That is, the recording area 200b of the present embodiment is configured by inserting the recording sheet 202 into the plurality of holding units 203 and holding it. The holding unit 203 is provided in a band shape, and the recording sheet 202 is inserted between the holding unit 203 and the base material 11. The configuration of the recording sheet 202 is the same as that of the recording sticker 201 of the fifth embodiment, and the measurement results for three times can be recorded, but detailed description is omitted.

  After recording the measurement results for three times on the recording sheet 202, the recording sheet 202 is removed from the holding unit 203 and replaced with a new recording sheet 202. As shown in FIG. 11 (b), the replacement recording sheet 202 is prepared by being individually inserted into a bag body 23 made of a film provided on the mount 22, and one sheet is removed from the mount 22 and inserted into the holding section 203. Hold. The recording sheet 202 after recording can be inserted into the empty bag body 23 of the mount 22. Thus, body temperature can be measured and recorded while the recording sheet 202 is replaced, and accumulated as a temperature measurement history. Similar to the fifth embodiment, the thermometer 1e can be used without waste in the sixth embodiment, and the recording area 200b can be easily replaced.

  The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to such examples. It will be apparent to those skilled in the art that various changes or modifications can be conceived within the scope of the technical idea disclosed in the present application, and these are naturally within the technical scope of the present invention. Understood.

1, 1′1a, 1a ′, 1a ″, 1b, 1c, 1d, 1e: thermometer 11: base material 12, 12a: temperature indicator 13: seal 13 ′: scratch portion 13 ″: dome portions 14, 19: adhesive layer 15: Protective layer 16: Coolant 17, 17a; Thermal insulation layer 18: Protective film 20: Reference 21, 22: Mount 23: Bag body 100: Temperature measuring area 200, 200 ', 200a, 200b: Recording area 201: Recording seal 202: Recording sheet 203: Holding unit

Claims (9)

A sheet-like substrate at least partially having translucency;
A temperature indicating material provided on a portion having the translucency on one surface of the substrate, and color-changing according to temperature;
An adhesive layer provided on the one surface of the substrate;
Having a thermometer.   The thermometer according to claim 1, wherein a gel-like coolant is provided as the adhesive layer.   The thermometer according to claim 2, wherein the color change of the temperature indicating material is reversible, and the coolant is detachable.   The thermometer according to any one of claims 1 to 3, wherein a cholesteric liquid crystal is used as the temperature indicating material.   The thermometer according to any one of claims 1 to 4, wherein a color change of the temperature indicating material is reversible, and a recording area for recording a temperature measurement result is provided.   6. The thermometer according to claim 5, wherein recording is performed by peeling off a seal at a position corresponding to a temperature measurement result in the recording area.   The thermometer according to claim 5 or 6, wherein the recording area is detachable.   The thermometer according to claim 7, wherein the recording area is configured as a seal attached to the base material.   8. The thermometer according to claim 7, wherein the recording area is configured by holding a recording sheet by a holding unit.

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