JP4766638B2 - Indicator for heating transpiration drug - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an indicator for a heat transpiration drug which is mainly set in a drug heat transpiration container and displays a drug start point and a drug end point of the heat transpiration drug.
[0002]
[Prior art]
Various chemical heating transpiration devices have been proposed in which a thermal transpiration chemical is provided in a chemical heating transpiration container, and the thermal transpiration chemical is heated and evaporated by a heating element.
In this medicine heating transpiration device, an indicator is set in the medicine heating transpiration container, the starting point of the medicine and the ending point of the medicine are displayed by this indicator, and the user can recognize that the medicinal component of the medicine has disappeared. .
[0003]
As the above-mentioned indicator, a substance that changes color by heating, for example, a thermochromic laminate as shown in JP-A-55-152059, is changed from colorless to colored with the elapse of heating time, A combination of disappearance of medicinal components (end point of drug) has been proposed.
In addition, an indicator has been proposed in which a character “end” is displayed using discoloration, or the entire sheet is discolored to the end color.
[0004]
[Problems to be solved by the invention]
As mentioned above, the color change from colorless to colored, or only from a different color, the color at the end of the drug, that is, the end point color is ambiguous and difficult to understand, and the user has lost the medicinal component of the drug It is difficult to recognize.
[0005]
Therefore, an object of the present invention is to provide an indicator for a heat transpiration drug capable of solving the above-mentioned problems.
[0006]
[Means for Solving the Problems]
1st invention is an indicator which displays the chemical | medical agent expiration date using the color change which arises by the irreversible reaction by heating, Comprising: By one color change, a visible mark becomes an invisible mark. It is a heat evaporation medicine indicator characterized by expressing a medicine use state with progress from a medicine start point to a medicine end point by causing two changes of a mark to a visible mark simultaneously in different places .
[0007]
The second aspect, in the first aspect, the first mark that is allowed change to invisible from visible is represented by drug endpoint color, a second mark that is allowed change to visible from invisible Is an indicator for a heat-vaporized medicine expressed in the starting color of the medicine.
[0008]
3rd invention is the indicator for heat | fever evaporation chemical | medical agents characterized by the mark described in 1st or 2nd invention being a character .
[0009]
According to a fourth aspect of the present invention, in the first to third aspects, the color change is not an abrupt, but is an indicator for a heat transpiration agent that gradually progresses with the passage of heating time .
[0010]
[Operation]
According to the first invention, in the indicator, the visible mark changes to an invisible mark and disappears, and the invisible mark changes to a visible mark. Since there are two marks of the second mark that appears, the user can clearly recognize that the medicinal component has disappeared as the drug end point.
[0011]
According to the second aspect of the invention, the user can clearly recognize that the medicinal component has disappeared due to the visual change of the first mark and the second mark as the drug end point.
[0012]
According to the fourth aspect of the invention, by observing the change in which the first mark gradually disappears and the second mark appears as the heating time elapses, the drug use state, that is, the drug efficacy The user can clearly recognize the remaining amount of ingredients.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 1, the drug heating transpiration device 1, the drug containing body holding container 2, and the drug containing body 3 form a drug heating transpiration device.
The chemical heating transpiration container 1 has a shape in which a lower container 10 and an upper container 11 are connected by screws 12. The lower container 10 has a drug-containing body insertion part 13 opened on one side surface and an air intake part 14 that opens a lower part of the drug-containing body insertion part 13 on the lower surface, and a heating element 15 is attached. The maximum surface temperature of the heating element 15 is 50 ° C to 250 ° C.
The heat generating surface 15a of the heat generating body 15 is inclined with respect to the horizontal and opens to the medicine-containing body insertion portion 13.
A switch portion 16, a push button 17, and a lamp 18 are attached to the lower container 10. When the push button 17 is pressed, the switch unit 16 is turned on to energize the heating element 15 to generate heat, and the lamp 18 is turned on.
[0014]
The medicine-containing body holding container 2 is substantially box-shaped with an upper surface plate 20, a lower surface plate 21, a front surface plate 22, a rear surface plate 23, and both side surface plates 24, and an air outlet 25 is formed in the front surface plate 22. An inlet 26 is formed.
There is a gap 27 between the lower plate 21 and the front plate 22, and the lower plate 21 is detachable.
The medicine-containing body holding container 2 is inserted into the medicine-containing body insertion portion 13, and the lower surface plate 21 contacts the heat generating surface 15 a of the heat generating body 15 and hits the stopper 19.
[0015]
The drug-containing body 3 is a rectangular plate impregnated with a drug that evaporates when heated, and is provided in the drug-containing body holding container 2 by removing the lower surface plate 21.
There is a gap for air circulation between the inner surface of the drug-containing body 3 and the surface of the drug-containing body 3, and when the heating element 15 generates heat, the air flows as shown by the arrows, and the evaporated drug diffuses smoothly. Is done.
[0016]
The drug that evaporates by heating is a drug that is released into the air when the maximum temperature of the heating element 15 is 5 ° C. or more from room temperature.
Examples of such agents include insecticides, acaricides, bactericides, insect repellents, fragrances, deodorants, and insect repellents.
[0017]
An indicator 30 is attached to the front plate 22 of the medicine-containing body holding container 2.
This indicator 30 is visible from the medicine-containing body insertion portion 13.
[0018]
The indicator 30 displays the expiration date of the medicine using a color change caused by an irreversible reaction caused by heating. The visible mark can be changed from a visible mark to an invisible mark by the color change. Two changes to the mark are caused at the same time, that is, two or more places are visually changed at the same time to express the state of use of the medicine along with the progress from the medicine start point to the medicine end point.
Specifically, a color changing portion that changes from a start point color to an end point color using a color change caused by an irreversible reaction due to heating, a first mark that expresses a drug start point with this end point color, and a drug end point with the start point color It is an indicator which has the 2nd mark to express.
[0019]
The discoloration part gradually changes from the start color to the end color as the heating time elapses.
Thus, the user can clearly recognize the drug use state, that is, the remaining amount of the medicinal component of the drug.
[0020]
The degree of the color change is a color difference Δ (delta) E = 10 or more.
Thereby, the visual visibility is good.
That is, when the color difference is ΔE = 10 or less, the visual visibility is extremely lowered.
[0021]
The maximum temperature at which the color changing portion changes color is 35 ° C to 200 ° C.
[0022]
A specific shape of the indicator 30 will be described with reference to FIG.
A plate 34 is provided on the surface of the print layer 33 in a film laminate configuration in which the base layer 31, the color changing layer 32 and the print layer 33 are superposed.
The base layer 31, the color changing layer 32 and the printing layer 33 are shown separately in FIG. 2, but they are overlapped and adhered in advance so as to sandwich the color changing layer 32.
The base layer 31, the discoloration layer 32, and the printing layer 33 that are in close contact with each other are fitted into and attached to a recess 22 a formed on the front plate 22 of the drug-containing body holding container 2.
The plate 34 has a pair of pins 34 a and is attached by fitting the pins 34 a into the holes 22 b of the front plate 22.
[0023]
The base layer 31 is made of an opaque film having a high concealability of 50 microns or more. This base layer 31 has a concealing function for making the influence of the color of the medicine-containing body holding container or the like when the indicator is installed difficult to affect the color of the indicator, and punching, cutting, alignment, suction, extrusion, etc. It has the role of adjusting basic physical properties related to manufacturing.
[0024]
The color changing layer 32 holds a thermochromic material. The color change layer 32 is a color change portion.
The color (starting color) before the color change of the color change layer 32 is the same color as the base layer 31.
[0025]
Examples of the thermochromic substance include a support obtained by impregnating or coating one of two agents exhibiting a color reaction or a color change reaction by mixing or contact, or a film obtained by dissolving or decomposing in a film forming component. 1st layer, 2nd layer which is the resin film which carries out the diffusion transfer of at least one of 2 chemical | medical agents at the desired temperature provided on the 1st layer, and the 3rd layer containing the other chemical | medical agent provided on the 2nd layer The color reaction or color change reaction is caused by mixing or contacting an acid-base substance or an acid-base indicator, an oxidation-reduction agent and an oxidation-reduction indicator, a metal compound and a chelating agent, and the first layer and the color change reaction. A thermochromic laminate made of polyester, polyamide, or acrylic resin is used for the resin film that is the second layer that is diffused and transferred by heating that separates the three layers.
[0026]
The printing layer 33 is based on a transparent film of 5 to 30 microns.
A display mark is printed on the transparent film, generally the back surface (the surface on the side of the color changing layer 32).
The transparent film has a protective function for the discoloration layer 32 and an appropriate oxygen permeation function.
[0027]
The plate 34 is a transparent film and is mixed with an ultraviolet absorber.
The plate 34 prevents the ultraviolet rays from hitting the discoloration layer 32 and prevents the ultraviolet rays from being discolored.
Further, an ultraviolet absorber can be applied to the base film of the printing layer 33 or applied.
[0028]
Next, a first specific example will be described.
The base layer 31 is white. The color changing layer 32 is white before the color change and red after the color change.
As shown in FIG. 2, the print layer 33 has a red “beginning” character (that is, a first mark representing a medicine start point) and a white “finishing” character (ie, a second mark representing a medicine end point). ), An arrow from the character “start” to the character “end” is printed.
The arrow has a red gradation on the character side of “beginning”, the color gradually fades toward the character of “end”, and white character printing on the character side of “end”.
[0029]
At the start of the chemical heating transpiration of the indicator 30, as shown in FIG. 3A, the appearance is such that the characters “beginning” and the arrow near the “beginning” character are visible.
As shown in FIG. 3B, the discoloration layer 32 changes to a light red color as the chemical heating time elapses, and the appearance of the “end” character can be visually recognized.
The difference between the letters “End” and the red color of the discoloration layer 32 is small.
When the medicine heating time further elapses, the discoloration layer 32 changes to a slightly darker red color as shown in FIG. 3C, and the appearance that the “End” character can be visually recognized somewhat clearly.
[0030]
Since the appearance changes in this way, the user can recognize the drug heating time, that is, the remaining amount of the drug contained in the drug-containing body 3, based on the difference between the red letters on the discoloration layer 32 and the characters “beginning”. .
[0031]
When the medicine heating time is over and the medicine is finished, that is, when the remaining amount of the medicine contained in the medicine-containing body 3 is less than the effective amount, as shown in FIG. Since the red color of the discoloration layer 32 has the same density, the appearance of the character “start” cannot be visually recognized and the character “end” can be clearly recognized.
[0032]
As such, the user can clearly recognize that the medicinal component has disappeared.
[0033]
Next, a second specific example will be described.
The base layer 31 is white. The color changing layer 32 is white before the color change and red after the color change.
As shown in FIG. 4A, the print layer 33 has a red “start” character, a white “end” character, a white first strip 35, a light red second strip 36, and a slightly darker color. The red third belt-like portion 37 and the red fourth belt-like portion 38 having the same darkness as the characters “beginning” are continuously printed.
[0034]
At the start of the heating of the medicine, as shown in FIG. 4 (a), the appearance is such that the letters “beginning” and the second, third, and fourth belt-like portions 36, 37, and 38 can be visually recognized.
As shown in FIG. 4B, the discoloration layer 32 turns light red as the chemical heating time elapses, and the first, third, and fourth belt portions 35, 37, and 38 can be visually recognized, and the second belt portion. 36 becomes invisible.
When the medicine heating time further elapses, as shown in FIG. 4C, the discoloration layer 32 changes to a slightly dark red color, and the first, second, and fourth belt portions 35, 36, and 38 are visually recognized, and the third belt shape The part 37 becomes invisible.
[0035]
When the medicine heating time is over and the medicine is finished, as shown in FIG. 4 (d), the letters "End" and the first, second, and third belt portions 35, 36, and 37 can be visually recognized. The part 38 becomes invisible.
[0036]
Thus, the chemical heating time can be recognized by visually recognizing the first, second, third, and fourth belt-like portions 35, 36, 37, and 38.
Note that the visual recognition of the characters “beginning” and “end” changes in the same manner as in the first specific example.
[0037]
Next, a third specific example will be described.
As shown in FIG. 5, the left half 33a of the printing layer 33 made of a transparent film is printed in red except for the character shape “S”, and the right half 33b is white except for the character shape “Sen”. Print.
In front of the “su” character extracted transparently in the red print layer of the left half 33a, a white “usable” character is printed.
[0038]
At the start of the heating of the medicine, as shown in FIG.
Since the discoloration layer 32 gradually changes to red as the chemical heating time elapses, the letters “su” are gradually faded as shown in FIG. 6B and FIG. The appearance gradually becomes clearly visible.
[0039]
When the medicine heating time is over and the medicine is over, as shown in FIG. 6 (d), the character “SU” cannot be visually recognized but the appearance of the character “SEN” can be clearly seen. You can see the words "I can't do it".
[0040]
The indicator 30 is preferably provided at a position that is visible from the outside near the heating element 15 of the chemical heating transpiration container 1.
[0041]
【The invention's effect】
According to the first aspect of the present invention, the visual change of the color is caused at two or more places, so that the user can clearly recognize that the medicinal component has disappeared as the end point of the medicine.
[0042]
According to the second aspect of the present invention, the user can clearly recognize that the medicinal component has disappeared as a medicine end point due to a visual change in the colors of the first mark and the second mark.
[0043]
According to the invention according to claim 4 , by observing the change in which one mark gradually disappears and the other mark appears as the heating time elapses, the drug use state, that is, the drug The remaining amount of medicinal ingredients can be clearly recognized by the user.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a chemical heating transpiration apparatus.
FIG. 2 is an exploded perspective view of an indicator mounting portion and an indicator.
FIG. 3 is an explanatory diagram of a color change of a first specific example of an indicator.
FIG. 4 is an explanatory diagram of a color change of a second specific example of the indicator.
FIG. 5 is a perspective view of a printed layer in a third specific example of an indicator.
FIG. 6 is an explanatory diagram of a color change of a third specific example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Drug heating evaporation container, 2 ... Drug containing body holding container, 3 ... Drug containing body, 15 ... Heat generating body, 30 ... Indicator, 31 ... Base layer, 32 ... Discoloring layer, 33 ... Printing layer.

Claims (4)

  An indicator that displays the expiration date of a drug using a color change that occurs due to an irreversible reaction caused by heating. A mark that can be visually recognized is changed from a visible mark to an invisible mark by one color change. An indicator for a heat-evaporating drug that expresses the state of use of the drug along with the progress from the drug start point to the drug end point by causing the two changes to occur simultaneously at different locations.   The first mark that is changed from visible to invisible is expressed by a medicine end point color, and the second mark that is changed from invisible to visible is expressed by a medicine start point color. Item 1. An indicator for a heat transpiration drug according to Item 1.   An indicator for a heat transpiration drug, wherein the mark according to claim 1 or 2 is a letter. The said color change progresses gradually not with a sudden but with progress of heating time, The indicator for heat | fever transpiration | evaporation chemical | medical agents in any one of Claim 1 thru | or 3 characterized by the above-mentioned.

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