WO2022085596A1 - Urination detection device - Google Patents
Urination detection device Download PDFInfo
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- WO2022085596A1 WO2022085596A1 PCT/JP2021/038287 JP2021038287W WO2022085596A1 WO 2022085596 A1 WO2022085596 A1 WO 2022085596A1 JP 2021038287 W JP2021038287 W JP 2021038287W WO 2022085596 A1 WO2022085596 A1 WO 2022085596A1
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- WIPO (PCT)
- Prior art keywords
- urination
- diaper
- temperature
- detection device
- main body
- Prior art date
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/42—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators with wetness indicator or alarm
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/44—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Portable urination aids; Colostomy devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/16—Special arrangements for conducting heat from the object to the sensitive element
Definitions
- the present invention relates to a urination detection device.
- a technique of detecting and notifying the urination of a disposable diaper wearer by a urination sensor For the purpose of reducing the burden of long-term care, there is known a technique of detecting and notifying the urination of a disposable diaper wearer by a urination sensor.
- a method for detecting urination a method for detecting a temperature or humidity increased by urination is known.
- the temperature-based detection method has a drawback that the temperature detected by the sensor is easily affected by the influence of the outside air temperature and the temperature of the object in contact with the temperature, and urination is easily erroneously detected because the temperature rise not due to urination is due to urination.
- the applicant has previously proposed a method using an integral amount of temperature that rises due to urination (see Patent Document 1).
- the present invention relates to a urination detection device including a temperature sensor and a main body device attached to the outer surface of a diaper.
- the urination detection device records a change in the temperature of the outer surface of the diaper in the main body device or an auxiliary device capable of communicating with the main body device, and when the temperature rise rate at the time of urination exceeds a set value, urination occurs. It is preferable to have a urination determination unit for determining that there was a urination.
- the present invention also relates to a urination detection method for measuring the temperature of the outer surface of the diaper at the urination site of the diaper and determining that urination has occurred when the rate of increase in the temperature exceeds a set value.
- FIG. 1A and 1B are views showing the main body of the urination detection device according to the first embodiment of the present invention, in which FIG. 1A is a sectional view taken along line II of FIG. 1B, FIG. 1B is a plan view, and FIG. Is a bottom view.
- FIG. 2 is a perspective view showing a pants-type disposable diaper which is an example of a diaper to which a main body device is attached.
- FIG. 3 is a schematic cross-sectional view showing the main body device attached to the outer surface of the diaper and its vicinity.
- FIG. 4 is an explanatory diagram of a method for measuring a change in the surface temperature of the outer surface of a diaper.
- FIG. 1A is a sectional view taken along line II of FIG. 1B
- FIG. 1B is a plan view
- FIG. 2 is a perspective view showing a pants-type disposable diaper which is an example of a diaper to which a main body device is attached.
- FIG. 5 is a graph showing changes in the surface temperature of the outer surface of the diaper when 40 mL of artificial urine is supplied to the diaper multiple times.
- FIG. 6 is a graph showing details of temperature changes after injection of artificial urine.
- FIG. 7 is a graph showing the temperature change (° C.) per minute that can be detected when the temperature data acquisition intervals are different.
- FIG. 8 is a block diagram of the urination determination unit according to the first embodiment.
- FIG. 9 is a diagram showing a main body device of the urination detection device according to the second embodiment, and is a diagram corresponding to FIG. 1 (a).
- FIG. 10 is a block diagram of the urination determination unit in the second embodiment.
- FIG. 11 is a schematic view showing an example of an inner side wall body or an outer cover having ventilation holes.
- Patent Document 1 could not detect until the temperature raised by urination decreased, it took time from urination to detection, and urination could not be detected quickly in some cases.
- Patent Document 2 and Patent Document 3 propose a method of detecting a temperature change by installing a temperature sensor on the skin facing surface side of a disposable diaper.
- the sensor comes into direct contact with the excrement, cleaning is required to reuse the sensor, which poses a hygienic problem.
- the humidity detection method it is difficult to detect the second and subsequent urinations because the humidity increased by the first urination is likely to be maintained even after the first urination.
- the present invention relates to a urination detection device that can solve the problems solved by the above-mentioned prior art.
- the urination detection device 1 of the first embodiment includes a main body device 2 attached to the outer surface S1 of the diaper.
- the diaper 10 is preferably a disposable diaper.
- the diaper 10 shown in FIG. 2 is a disposable diaper, which is a liquid-permeable surface sheet 12, a liquid-impermeable or water-repellent leak-proof sheet 13, and a liquid-retaining absorber arranged between both sheets 12, 13. It is equipped with 14.
- an exterior sheet 15 made of a non-woven fabric having a single-layer or multi-layer structure is further arranged.
- the diaper 10 has a ventral portion A arranged on the ventral side of the wearer at the time of wearing, a dorsal portion B arranged on the dorsal side, and a crotch portion C located between them.
- the diaper 10 is a pants-type diaper in which both side edges of the ventral side A and both side edges of the dorsal side B are joined to each other, whereby the pair of side seal portions 16, 16 and the waist opening are joined to each other.
- a portion 17 and a pair of leg openings 18, 18 are formed.
- the surface sheet 12, the leak-proof sheet 13, and the absorber 14 various types conventionally used for this type of article can be used without particular limitation.
- various non-woven fabrics, perforated films and the like can be used as the surface sheet 12, and a resin film and a laminated sheet of a resin film and a non-woven fabric or the like can be used as the leak-proof sheet 13.
- the absorber 14 an absorbent core composed of particles of a highly absorbent polymer and a fiber material coated with a core wrap sheet or the like can be used.
- the leak-proof sheet 13 it is preferable to use a moisture-permeable sheet.
- the main body device 2 is a device attached to and used on the outer surface S1 of the diaper.
- the inner surface of the diaper is the surface facing the wearer's skin side when wearing the diaper
- the outer surface of the diaper is the surface facing the wearer's skin side when wearing the diaper.
- the main body device 2 is preferably attached to the outer surface of the diaper at the urination site of the diaper from the viewpoint of accurately obtaining information on the temperature change due to urination.
- the urination site of the diaper is a site where the absorber 14 is present inside. From the viewpoint of more reliable detection of urination, the main body device 2 is preferably attached to the portion of the inseam C where the absorber 14 is present, and is preferably attached to the central portion of the inseam C in the width direction.
- the urination detection device 1 of the first embodiment includes a temperature sensor 3 in the main body device 2. Further, the urination determination unit 5 (see FIG. 8) is provided in the main body device 2. More specifically, the main body device 2 is located on the side opposite to the flat plate-shaped inner side wall 71 forming the surface on the side of the diaper 10 in contact with the outer surface S1 and the side of the diaper 10 in contact with the outer surface S1. It has a diaper-shaped outer cover 72, and is provided with a temperature sensor 3, a humidity sensor 4, and a urination determination unit 5 in a storage space 74 surrounded by an inner side wall body 71 and an outer cover 72.
- thermocouple As the temperature sensor 3, a thermocouple, a thermistor or the like is preferably used.
- the outer surface S1 of the diaper is also referred to as the outer surface S1 of the diaper
- the inner surface S2 of the diaper is also referred to as the inner surface S2 of the diaper.
- FIG. 4 is an explanatory diagram of a method for measuring a change in the surface temperature of the outer surface of the diaper
- FIG. 5 shows the outer surface of the diaper when artificial urine is supplied to the diaper multiple times using the measuring device shown in FIG. It is a graph which showed the change of the surface temperature.
- the diaper 10 is fixed by peeling off the side seal portion and spreading in a plane, and the temperature of the outer surface of the diaper is monitored by the thermometer 81 in contact with the outer surface of the diaper. While doing so, artificial urine was supplied to the inner surface of the diaper three times at 1-hour intervals.
- the periphery of the absorption portion in which the absorber 14 was arranged was fixed to the hanging frame-shaped support portion of the acrylic support 82. Further, a hot water tank 83 was arranged on the upper part of the support 82 to maintain the temperature on the inner surface side of the diaper at about 36 ° C. assuming the skin temperature.
- the artificial urine physiological saline was used, and the artificial urine kept at 36 ° C. was supplied by the liquid feed pump 84 over about 10 seconds each time.
- FIG. 6 is a graph showing the details of the temperature change after the injection at the time of the first injection shown in FIG. As shown in FIG. 6, the temperature rises sharply from about 8 seconds after the injection time, and reaches the peak within 15 seconds from the injection time. As shown in FIG. 5, the change in temperature at the time of the second injection and the third injection is the same as that at the time of the first injection.
- the temperature of the outer surface of the diaper tends to be lower than the temperature of the inner surface of the diaper with the passage of time after urination.
- the humidity on the inner surface of the diaper decreases slowly after urination, whereas the temperature on the outer surface of the diaper decreases relatively early. Therefore, by continuously monitoring the temperature of the outer surface of the diaper and capturing the temperature rise in which the rising speed exceeds the set value, it is possible to detect the second and subsequent urination.
- the urination determination unit 5 in the first embodiment has a function of recording a change in the temperature of the outer surface of the diaper and determining that urination has occurred when the rate of increase in the temperature exceeds a set value. ..
- the urination determination unit 5 includes a CPU (Central Processing Unit), a storage device such as a ROM (Read Only Memory) and a RAM (Random Access Memory), a timer, and the like.
- the urination determination unit 5 is electrically connected to the temperature sensor 3, and the process performed by the urination determination unit 5 is performed, for example, by the CPU expanding a program stored in a ROM, RAM, or the like into a RAM and executing the process. It will be realized.
- the urination determination unit 5 functionally has a sampling time generation unit 51, a data sampling unit 52, a temperature data holding memory 53, a temperature rise speed detection unit 54, and a rise detection setting. It includes a memory 55 and a urination detection unit 56.
- the sampling time generation unit 51 Based on the temperature data acquisition interval information stored in the storage device, the sampling time generation unit 51 performs urination detection processing from the timing of measuring the temperature by the temperature sensor 3 or the temperature measured by the temperature sensor 3 in the data sampling unit 52. Outputs a timing signal regarding the timing to acquire the temperature data used for.
- the data sampling unit 52 to which the timing signal is input stores the temperature and time data at the time when the timing signal is input in the temperature data holding memory 53.
- the temperature rise speed detection unit 54 calculates the amount of temperature change per predetermined time from the past temperature and time data stored in the temperature data holding memory 53 and the temperature and time information newly acquired by the data sampling unit 52. do.
- the urination detection unit 56 compares the amount of temperature change per predetermined time calculated by the temperature rise rate detection unit 54 with the urination determination standard stored in the rise detection setting memory 55.
- the criterion for determining urination is whether or not the amount of temperature change per predetermined time corresponds to a temperature increase in which the rate of increase exceeds a predetermined value, and if it exceeds, it is determined that urination has occurred.
- the urination determination unit 5 in the first embodiment includes a urination display means 58. It is also possible to detect multiple urinations. Further, a memory for detecting the number of times of urination 57 is provided so that the number of times of urination can be stored or displayed. When the urination detection unit 56 determines that there is urination, the urination display means 58 displays the urination detection information, and the urination count is once for the urination count information stored in the urination detection count memory 57. Make an increase update.
- the urination detection information displayed on the urination display means 58 may be one that displays the fact that urination has occurred on a screen made of a liquid crystal or the like with characters, symbols, colors, etc., and notifies the urination by sound, voice, vibration, or the like. It may be a thing.
- As the urination detection information it is preferable to express the number of urination in addition to the urination.
- the urination determination unit 5 determines that urination has occurred when the temperature rise rate is 0.5 ° C. or higher per minute, that is, 0.5 ° C./1 minute or higher.
- the rate of temperature rise used as a criterion for determining that urination has occurred is preferably 0.5 ° C./1 minute or more, more preferably 1.0 ° C./1 minute or more, and 1 ° C. or more. It is more preferably 5 ° C. or lower / 1 minute or longer.
- the acquisition interval of the temperature data used for determining the temperature rise rate is preferably 2 minutes or less, more preferably 1 minute or less, preferably 1 second or more, more preferably 10 seconds or more, and more preferably. Is 1 second or more and 2 minutes or less, more preferably 1 second or more and 1 minute or less, and further preferably 10 seconds or more and 1 minute or less.
- the temperature data acquisition intervals are set to 5 types of 10 seconds, 30 seconds, 1 minute, 2 minutes, and 5 minutes, and the temperature at the time of the previous temperature data acquisition and the temperature at the time of the next temperature data acquisition are shown for each. It is a graph which showed the value which divided the difference (° C.) by the acquisition interval as the temperature change (° C.) per minute.
- the above-mentioned temperature data acquisition interval is preferably the interval between the time points at which the two temperatures used for determining the temperature rise rate are observed, and is based on the continuous data obtained when the temperature is continuously monitored. When the temperature at two appropriate time points is picked up and the temperature rise rate is obtained from the temperature and time interval between those two time points, the interval between the two time points may be used.
- the urination detection device 1 of the present embodiment has a sampling time generation unit 51, a data sampling unit 52, a temperature data holding memory 53, and a temperature, which constitute the above-mentioned urination determination unit 5 in the main body device 2 mounted on the outer surface of the diaper.
- a rising speed detection unit 54 and a urination detection unit 56 are provided, and a power supply unit (not shown) for supplying the power required for these is also provided in the main body device 2.
- the main unit 2 is provided with a sampling time generation unit 51, a data sampling unit 52, a temperature data holding memory 53, a temperature rise speed detection unit 54, a urination detection unit 56, and a power supply unit.
- the power supply cord connecting the parts is not required, and the behavior of the diaper wearer to which the main body device 2 is attached is less likely to be restricted. Thereby, for example, it is possible to acquire data on urination under conditions close to the daily living environment, and for example, it is possible to more accurately predict and manage the timing of changing diapers.
- the main body device of the present invention communicates with the sampling time generation unit 51, the data sampling unit 52, the temperature data holding memory 53, and the outside, which constitute the above-mentioned urination determination unit 5 in the main body device 2 mounted on the outer surface of the diaper. It is also preferable to include possible devices (not shown) and a power supply unit (not shown) that supplies the necessary power to them.
- the main unit 2 is provided with a sampling time generation unit 51, a data sampling unit 52, a temperature data holding memory 53, a device capable of wireless communication with the outside, and a power supply unit, and is an auxiliary device capable of wirelessly communicating with the main unit 2.
- a diaper to which the main body device 2 is attached by transmitting necessary data and making the CPU, storage device, etc. provided in the auxiliary device function as a temperature rise speed detection unit 54, a urination detection unit 56, a urination display means 58, etc. It is possible to prevent the behavior of the wearer from being restricted.
- the main body device 2 includes a humidity sensor 4 in addition to the temperature sensor 3.
- a humidity sensor 4 in addition to the temperature sensor 3.
- the humidity sensor 4 various known ones can be used, and for example, a polymer resistance type or a polymer capacitance type humidity sensor can be used.
- a commercially available product can also be used, and for example, a "humidity sensor CHS type" manufactured by TDK can be used.
- the main body device 2A includes a humidity sensor 4 in addition to the temperature sensor 3. Further, the urination determination unit 5A in the second embodiment uses the information from the humidity sensor 4 to detect urination.
- a preferable configuration of the urination determination unit 5A in the second embodiment will be described with reference to the block diagram shown in FIG.
- the urination determination unit 5A in the second embodiment will be described with respect to the differences from the urination determination unit 5 shown in FIG. 8, and the same points will be omitted.
- FIG. 9 the configuration shown in FIG.
- the urination determination unit 5A includes a humidity data sampling unit 62, a humidity data holding memory 63, and a humidity change detection unit 64.
- the sampling time generation unit 51 outputs the timing signal described above to the temperature data sampling unit 52 based on the data acquisition interval information stored in the storage device.
- the data sampling unit 62 for humidity outputs a timing signal regarding the timing of measuring the humidity by the humidity sensor 4 or the timing of acquiring the humidity data used for the urination detection process from the humidity measured by the humidity sensor 4.
- the humidity data sampling unit 62 to which the timing signal is input stores the humidity and time data at the time when the timing signal is input in the humidity data holding memory 63.
- the humidity change detection unit 64 determines the humidity, the amount of change in humidity, or the amount of change in humidity from the past humidity and time data stored in the humidity data holding memory 63 or the humidity and time information newly acquired by the data sampling unit 62 for humidity. Calculate the amount of humidity change per predetermined time. Then, the urination detection unit 56A makes the first determination based on whether or not the temperature rise rate exceeds a predetermined value, similarly to the urination detection unit 56 in the urination determination unit shown in FIG. Further, when the humidity or the amount of change in humidity exceeds a predetermined value or the amount of change in humidity per predetermined time exceeds a predetermined value, a second determination is made that the change in humidity due to urination has occurred.
- a second determination may be made that the humidity changes due to urination when the humidity exceeds a predetermined relative humidity of 60%, and urination occurs when the amount of increase in humidity exceeds a predetermined value.
- the second determination that the change in humidity due to urination has occurred may be made, and the second determination that the change in humidity due to urination has occurred when the amount of change in humidity per minute exceeds a predetermined amount. May be done.
- the urination detection unit 56A determines that urination has occurred when both the first determination and the second determination satisfy the criteria for determining urination.
- the processing after the urination detection unit 56A determines that urination has occurred is the same as that of the urination detection unit 56.
- the temperature sensor 3 divides the main body devices 2 and 2A into two equal parts, the height T thereof, and the upper half U and the lower half D. It is preferable that it is arranged in the lower half D at the time of urination.
- the height T of the main body device 2 is in the direction perpendicular to the outer surface S1 when attached to the outer surface S1 of the diaper, and the lower half D is arranged closer to the outer surface S1 as compared with the upper half U. Will be done.
- the temperature sensor 3 is arranged in the lower half D, it becomes easy to detect the temperature change of the outer surface S1 of the diaper, and the accuracy of urination detection is improved.
- the main body devices 2 and 2A have an outer cover 72 that covers the temperature sensor 3 on the side opposite to the side that comes into contact with the outer surface of the diaper, and the outer cover 72 and the temperature sensor are provided. It is preferable to have a space between 3 and 3. By forming a space between the outer cover 72 and the temperature sensor 3, it is suppressed that the external temperature affects the detection of urination, and the accuracy of urination detection is improved.
- the material for forming the outer cover 72 include plastic, metal, and ceramic, but from the viewpoint of the temperature detection accuracy of the diaper, it is preferably made of plastic.
- the main body devices 2 and 2A have an inner side wall body 71 on the side in contact with the outer surface of the diaper and an outer cover 72 on the side opposite to the side in contact with the outer surface of the diaper.
- the outer cover 72 that covers the side opposite to the side that comes into contact with the outer surface of the diaper may be made of the same material or different from the inner side wall body 71 that constitutes the side that comes into contact with the outer surface of the diaper, but the outer cover 72 is the inner side. It is preferable that the thermal conductivity is lower than that of at least a part of the wall body 71.
- the thermal conductivity of the outer cover 72 is lower than the thermal conductivity of the whole or a part of the inner side wall body 71, for example, the part of the inner side wall body 71 that overlaps with the temperature sensor 3, the influence of the outside air temperature or contact is made.
- the influence of the temperature of the diaper can be eliminated or reduced, the temperature of the outer surface of the diaper and its change can be measured with higher accuracy, and urination can be detected with higher accuracy.
- the thermal conductivity of the outer cover 72 is preferably 20 W / m ⁇ K or less, and the thermal conductivity of the inner side wall 71 is at least a part, preferably 100 W / m ⁇ K or more. Is preferable.
- the temperature detection unit is a portion that overlaps with the temperature sensor 3, and as shown in FIG. 9, the temperature detection unit may be formed by arranging a temperature transmission member 31 made of a different material on a part of the inner side wall body 71, or the same. It may be a part of the inner side wall body 71 made of a material.
- the portion of the inner side wall body 71 where the thermal conductivity is lower than the thermal conductivity of the outer cover 72 and the portion where the temperature transmission member 31 is arranged are the temperatures on the surface of the main body device 2 facing the outer surface of the diaper. It is preferable that at least a part thereof is arranged in the temperature detection unit which is a part overlapping with the sensor 3.
- the main body devices 2 and 2A have an outer cover covering the side of the temperature sensor 3 opposite to the side in contact with the outer surface of the diaper, and the outer cover is made of a heat insulating material or has an inner surface or an outer surface. It is preferable that a heat insulating layer made of a heat insulating material is provided or the thickness (thickness) is 1 mm or more.
- the heat insulating material include plastics, ceramics, silicon resins, urethane resins and the like.
- the heat insulating material has a thermal conductivity of 20 W / m ⁇ K or less, more preferably 1 W / m ⁇ K or less.
- the heat insulating layer is provided on, for example, the inner surface, the outer surface, or both inner and outer surfaces of a plastic or metal base material.
- the thickness (thickness) of the outer cover is preferably 1 mm or more, more preferably 2 mm or more. There is no particular upper limit, but it is preferably 5 mm or less from the viewpoint of suppressing discomfort when worn.
- the main body devices 2 and 2A preferably include a temperature transmission member 31 for transmitting the temperature of the outer surface S1 of the diaper to the temperature sensor 3 on the surface facing the outer surface S1 of the diaper. ..
- a columnar temperature transfer made of metal, more specifically stainless steel, copper or aluminum penetrates the opening formed in the inner side wall body 71.
- a member 31 is arranged, one end of the temperature transmission member 31 is in contact with the temperature sensor 3, and when the main body device 2 is attached to the outer surface S1 of the diaper, the other end of the temperature transmission member 31 is in contact with the outer surface S1 of the diaper. It is designed to be in contact.
- the temperature transfer member 31 is preferably made of a material having a high thermal conductivity.
- the temperature transfer member 31 is made of stainless steel, a metal having a relatively high thermal conductivity such as copper or aluminum, or ceramics such as alumina. Is preferable.
- the thermal conductivity of the temperature transfer member 31 is preferably 20 W / m ⁇ K or more, more preferably 100 W / m ⁇ K or more.
- the temperature transmission member 31 may be a gel agent or the like used as a cold insulating agent or the like. Examples of the gel agent include those obtained by wrapping a gel agent in which a polymer absorber is impregnated with a solvent with a polymer membrane.
- the main body devices 2 and 2A have an inner side wall body 71 on the side in contact with the outer surface of the diaper and an outer cover 72 on the side opposite to the side in contact with the outer surface of the diaper.
- the inner side wall 71 and the outer cover 72 are formed with ventilation holes 75 on one or both of them. It is preferable from the viewpoint of detecting one or both of temperature and humidity.
- 11 (a) and 11 (b) are examples in which the vent hole 75 is provided in the outer cover 72 covering the side opposite to the side in contact with the outer surface of the diaper, and FIGS. 11 (c) and 11 (d) show contact with the outer surface of the diaper.
- Vents 75 may be provided in only one of the outer cover 72 and the inner side wall 71, or both may be provided with the vents 75.
- the main body devices 2 and 2A are provided with a fastening material 73 for fastening to the outer surface of the diaper on the surface facing the outer surface of the diaper.
- the fastening material 73 include an adhesive layer formed by applying an adhesive, a male member of a mechanical surface fastener, and the like.
- the method of attaching the main body device 2 to the outer surface S1 of the diaper is not particularly limited, and is fixed with a tape, fixed with an elastic net, or an elastic tubular fixture attached around the body. There is a method of pressing with a diaper. Those that can be detachably fixed to the outer surface of the diaper are preferable.
- the main body device 2 or 2A is fixed to the outer surface of the diaper at the urination site of the diaper, and the temperature of the surface of the outer surface is measured.
- the method for detecting urination which determines that urination has occurred when the rate of increase in temperature exceeds a set value, is an example of a preferred embodiment of the method for detecting urination of the present invention, and is an example of the urination detection device 1 and the urination detection device 1A.
- the above-mentioned preferable configuration and description regarding the above can be appropriately applied to the urination detection method of the present invention.
- the diaper to which the main body device in the urination detection device of the present invention is attached or the diaper in the urination detection method of the present invention is a moisture-permeable leak-proof material arranged on the outer surface side (non-skin facing surface side) of the absorber 14 and the absorber 14. It is preferable to have a seat. Then, the main body device 2 is attached to a portion of the outer surface S1 of the diaper that overlaps with the moisture-permeable leak-proof sheet, so that steam is released from the outer surface of the diaper after urination, and the temperature of the outer surface is lowered by the next urination.
- the moisture-permeable leak-proof sheet it is preferable to use a moisture-permeable and liquid-impermeable film, for example, a microporous film.
- the microporous film is formed by melt-kneading, for example, a hydrophobic thermoplastic resin and a minute inorganic filler made of calcium carbonate or the like or an organic polymer incompatible with the thermoplastic resin to form a film. It is obtained by stretching the film uniaxially or biaxially. It is also preferable that the portion to which the main body device 2 is attached is displayed on the diaper to which the main body device 2 is attached by printing or arranging a member to which the fastening material is easily fastened.
- the urination detection device may be provided with the function of the urination determination unit separately for the main body device and the auxiliary device.
- the urination determination units 5, 5A and the power supply unit such as a battery are arranged in the main body devices 2, 2A, but the urination determination units 5, 5A. All or part of the functions of the above may be provided in an auxiliary device capable of communicating with the main body devices 2 and 2A.
- a communication unit that can transmit data by wire or wirelessly such as Wi-Fi (registered trademark) is provided in the main unit 2 and 2A, and the temperature or humidity data from the temperature sensor or humidity sensor is collected. It is also possible to output to an auxiliary device in which a necessary application or program is installed, and have the auxiliary device perform determination of the urination detection units 56, 56A and display of the determination result. Further, it is also possible to cause the auxiliary device to perform a function other than the urination display means in the urination determination units 5 and 5A.
- the auxiliary device is, for example, a mobile terminal such as a smartphone, a personal computer of a desktop or a laptop, and the like.
- the battery included in the power supply unit is preferably a rechargeable battery (secondary battery) such as a lithium ion battery or a nickel hydrogen battery, but may be a non-rechargeable dry battery or a hydrogen battery.
- the shapes of the main devices 2 and 2A can also be changed as appropriate.
- the plan view shape may be a polygon such as an ellipse, a triangle, or a quadrangle, or a heart shape of playing cards, instead of a circular shape.
- the main body devices 2 and 2A preferably have a flat shape having a height T smaller than the diameter when viewed in a plan view or the diameter equivalent to a circle, but may have a non-flat shape.
- the outer cover may be a cylindrical body or the like having a flat top surface instead of the dome shape.
- a urination detection device including a urination determination unit that records a change in the temperature of the outer surface of the diaper and determines that urination has occurred when the rate of increase in the temperature exceeds a set value.
- ⁇ 2> The urination detection device according to ⁇ 1>, wherein the urination determination unit is capable of detecting a plurality of urinations.
- ⁇ 3> The urination detection device according to ⁇ 1> or ⁇ 2>, wherein the urination determination unit determines that urination has occurred when the temperature rise rate is 0.5 ° C./1 minute or more.
- ⁇ 4> The urination detection device according to any one of ⁇ 1> to ⁇ 3>, wherein the temperature data acquisition interval is 2 minutes or less, and the temperature rise rate is calculated from the difference from the temperature at the time of the previous acquisition.
- ⁇ 5> The urination detection device according to any one of ⁇ 1> to ⁇ 4>, wherein the main body device includes a humidity sensor.
- the temperature sensor is arranged in the lower half portion when the height of the main body device is divided into two equal parts into an upper half portion and a lower half portion.
- the main body device has an inner side wall body on the side in contact with the outer surface of the diaper and an outer cover on the side opposite to the side in contact with the outer surface of the diaper, and the outer cover is more than at least a part of the inner side wall body.
- the urination detection device according to any one of ⁇ 1> to ⁇ 6>, which has a low thermal conductivity.
- the main body device has an inner side wall body on the side in contact with the outer surface of the diaper and an outer cover on the side opposite to the side in contact with the outer surface of the diaper, and vent holes are provided in one or both of the inner side wall body and the outer cover.
- the urination detection device according to any one of ⁇ 1> to ⁇ 7>, wherein the urination detection device is formed.
- the above item 1 according to any one of ⁇ 1> to ⁇ 8> which includes a sampling time generation unit, a data sampling unit, a temperature data holding memory, a temperature rise speed detection unit, a urination detection unit, and a power supply unit in the main body apparatus.
- the urination according to any one of ⁇ 1> to ⁇ 8> which includes a sampling time generation unit, a data sampling unit, a temperature data holding memory, a device capable of wireless communication with the outside, and a power supply unit in the main body device. Detection device.
- ⁇ 11> Any one of ⁇ 1> to ⁇ 10>, wherein the temperature data acquisition interval used for obtaining the temperature rise rate is preferably 1 second or more and 2 minutes or less, more preferably 1 second or more and 1 minute or less.
- the urination detection device according to 1.
- the main body device has an outer cover covering the temperature sensor on a side opposite to the side in contact with the outer surface of the diaper, and has a space between the outer cover and the temperature sensor.
- the urination detection device according to any one of ⁇ 11>.
- the main body device has an outer cover that covers the side of the temperature sensor opposite to the side that comes into contact with the outer surface of the diaper, and the outer cover is made of a heat insulating material. 12> The urination detection device according to any one of.
- the main body device has an outer cover that covers the side of the temperature sensor opposite to the side that comes into contact with the outer surface of the diaper, and the outer cover is made of plastic having a wall thickness of 1 mm or more, preferably 1 mm or more and 5 mm or less.
- the urination detection device according to any one of ⁇ 1> to ⁇ 13>.
- the main body device has an outer cover that covers the side of the temperature sensor opposite to the side that comes into contact with the outer surface of the diaper, and the outer cover is formed on the inner surface, the outer surface, or both inner and outer surfaces of a plastic or metal base material.
- the urination detection device according to any one of ⁇ 1> to ⁇ 14>, which comprises a heat insulating layer.
- ⁇ 16> The urination detection device according to any one of ⁇ 1> to ⁇ 15>, wherein the main body device includes a temperature transmission member for transmitting the temperature of the outer surface to the temperature sensor on a surface facing the outer surface of the diaper. .. ⁇ 17> The urination detection device according to ⁇ 16>, wherein at least a part of the temperature transmission member is arranged in a temperature detection unit which is a portion of the surface facing the outer surface of the diaper and which overlaps with the temperature sensor.
- Device. ⁇ 19> The main body device has an inner side wall body on the side in contact with the outer surface of the diaper and an outer cover on the side opposite to the side in contact with the outer surface of the diaper, and the outer cover covers the whole or a part of the inner side wall body.
- the thermal conductivity of the outer cover is 20 W / m ⁇ K or less, and the thermal conductivity of a part of the inner wall surface having a higher thermal conductivity than the outer cover is 100 W / m ⁇ K or more.
- the urination detection device ⁇ 21>
- the diaper includes an absorber and a moisture-permeable leak-proof sheet arranged on the outer surface side of the absorber.
- the urination detection device according to any one of ⁇ 1> to ⁇ 20>, wherein the main body device is attached to a portion overlapping the moisture-permeable leak-proof sheet.
- ⁇ 22> A method for detecting urination in which the temperature of the outer surface of the diaper at the urination site of the diaper is measured and it is determined that urination has occurred when the temperature rise rate exceeds a set value.
- urination can be detected at an early timing at the time of urination, there are few false detections, and the second and subsequent urination can be detected.
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Abstract
A urination detection device (1) according to the present invention is provided with: a temperature sensor (3); a body device (2) that is attached to the outer surface of a diaper; and a urination determination unit (5) that records, in the body device (2) or an auxiliary device able to communicate with the body device, changes in the outer surface temperature of the diaper and determines that urine has been discharged when the temperature increase rate during urination exceeds a set value. The urination detection method according the present invention measures the outer surface temperature at a urination portion of the diaper and determines that urine has been discharged when the increase rate of the temperature exceeds the set value.
Description
本発明は、排尿検出装置に関する。
The present invention relates to a urination detection device.
介護負担の軽減等を目的として、使い捨ておむつの着用者の排尿を排尿センサーにより検出して通知する技術が知られている。排尿の検出方法としては、排尿により上昇した温度又は湿度を検出する方法が知られている。
しかしながら、温度による検出方法は、外気温や接触するものの温度の影響により、センサーによる検出温度が影響を受けやすく、排尿によらない温度上昇を排尿によるものとして排尿を誤検出しやすい欠点がある。
誤検出を抑制可能な技術として、本出願人は、先に排尿により上昇する温度の積分量を利用する方法を提案した(特許文献1参照)。 For the purpose of reducing the burden of long-term care, there is known a technique of detecting and notifying the urination of a disposable diaper wearer by a urination sensor. As a method for detecting urination, a method for detecting a temperature or humidity increased by urination is known.
However, the temperature-based detection method has a drawback that the temperature detected by the sensor is easily affected by the influence of the outside air temperature and the temperature of the object in contact with the temperature, and urination is easily erroneously detected because the temperature rise not due to urination is due to urination.
As a technique capable of suppressing erroneous detection, the applicant has previously proposed a method using an integral amount of temperature that rises due to urination (see Patent Document 1).
しかしながら、温度による検出方法は、外気温や接触するものの温度の影響により、センサーによる検出温度が影響を受けやすく、排尿によらない温度上昇を排尿によるものとして排尿を誤検出しやすい欠点がある。
誤検出を抑制可能な技術として、本出願人は、先に排尿により上昇する温度の積分量を利用する方法を提案した(特許文献1参照)。 For the purpose of reducing the burden of long-term care, there is known a technique of detecting and notifying the urination of a disposable diaper wearer by a urination sensor. As a method for detecting urination, a method for detecting a temperature or humidity increased by urination is known.
However, the temperature-based detection method has a drawback that the temperature detected by the sensor is easily affected by the influence of the outside air temperature and the temperature of the object in contact with the temperature, and urination is easily erroneously detected because the temperature rise not due to urination is due to urination.
As a technique capable of suppressing erroneous detection, the applicant has previously proposed a method using an integral amount of temperature that rises due to urination (see Patent Document 1).
本発明は、温度センサーを備え、おむつの外面に取り付けられる本体装置を備える排尿検出装置に関する。
前記排尿検出装置は、前記本体装置内又は該本体装置と通信可能な補助装置に、前記おむつの外面の温度の変化を記録し、排尿時の温度上昇速度が設定値を超えたときに排尿があったと判定する排尿判定部を備えることが好ましい。
また本発明は、おむつの排尿部位におけるおむつの外面の表面の温度を計測し、該温度の上昇速度が設定値を超えたときに排尿があったと判定する排尿検出方法に関する。 The present invention relates to a urination detection device including a temperature sensor and a main body device attached to the outer surface of a diaper.
The urination detection device records a change in the temperature of the outer surface of the diaper in the main body device or an auxiliary device capable of communicating with the main body device, and when the temperature rise rate at the time of urination exceeds a set value, urination occurs. It is preferable to have a urination determination unit for determining that there was a urination.
The present invention also relates to a urination detection method for measuring the temperature of the outer surface of the diaper at the urination site of the diaper and determining that urination has occurred when the rate of increase in the temperature exceeds a set value.
前記排尿検出装置は、前記本体装置内又は該本体装置と通信可能な補助装置に、前記おむつの外面の温度の変化を記録し、排尿時の温度上昇速度が設定値を超えたときに排尿があったと判定する排尿判定部を備えることが好ましい。
また本発明は、おむつの排尿部位におけるおむつの外面の表面の温度を計測し、該温度の上昇速度が設定値を超えたときに排尿があったと判定する排尿検出方法に関する。 The present invention relates to a urination detection device including a temperature sensor and a main body device attached to the outer surface of a diaper.
The urination detection device records a change in the temperature of the outer surface of the diaper in the main body device or an auxiliary device capable of communicating with the main body device, and when the temperature rise rate at the time of urination exceeds a set value, urination occurs. It is preferable to have a urination determination unit for determining that there was a urination.
The present invention also relates to a urination detection method for measuring the temperature of the outer surface of the diaper at the urination site of the diaper and determining that urination has occurred when the rate of increase in the temperature exceeds a set value.
特許文献1の方法は、排尿により上昇した温度が低下するまで検出できず、排尿から検出までに時間を要し、排尿を迅速に検出できない場合があった。
また特許文献2及び特許文献3には、使い捨ておむつの肌対向面側に温度センサーを設置して温度変化を検出する方法が提案されている。しかしながら、センサーが排泄物に直接触れるため、センサーを再利用するには洗浄が必要であり、衛生上の課題がある。
他方、湿度による検出方法は、初回の排尿により上昇した湿度が、排尿後も維持されやすいため、2回目以降の排尿を検出するのが困難である。 The method ofPatent Document 1 could not detect until the temperature raised by urination decreased, it took time from urination to detection, and urination could not be detected quickly in some cases.
Further,Patent Document 2 and Patent Document 3 propose a method of detecting a temperature change by installing a temperature sensor on the skin facing surface side of a disposable diaper. However, since the sensor comes into direct contact with the excrement, cleaning is required to reuse the sensor, which poses a hygienic problem.
On the other hand, in the humidity detection method, it is difficult to detect the second and subsequent urinations because the humidity increased by the first urination is likely to be maintained even after the first urination.
また特許文献2及び特許文献3には、使い捨ておむつの肌対向面側に温度センサーを設置して温度変化を検出する方法が提案されている。しかしながら、センサーが排泄物に直接触れるため、センサーを再利用するには洗浄が必要であり、衛生上の課題がある。
他方、湿度による検出方法は、初回の排尿により上昇した湿度が、排尿後も維持されやすいため、2回目以降の排尿を検出するのが困難である。 The method of
Further,
On the other hand, in the humidity detection method, it is difficult to detect the second and subsequent urinations because the humidity increased by the first urination is likely to be maintained even after the first urination.
本発明は、上述した従来技術が有する解決課題を解消し得る排尿検出装置に関する。
The present invention relates to a urination detection device that can solve the problems solved by the above-mentioned prior art.
以下、本発明の排尿検出装置を、その好ましい実施形態に基づき説明する。
第1実施形態の排尿検出装置1は、図2に示されるように、おむつの外面S1に取り付けられる本体装置2を備えている。おむつ10は、好ましくは、使い捨ておむつである。
図2に示すおむつ10は、使い捨ておむつであり、液透過性の表面シート12、液不透過性又は撥水性の防漏シート13及び両シート12,13間に配置された液保持性の吸収体14を備えている。防漏シート13の非肌対向面側には、更に単層又は多層構造の不織布からなる外装シート15が配されている。また、おむつ10は、着用時に着用者の腹側に配される腹側部Aと、背側に配される背側部Bと、その間に位置する股下部Cとを有している。おむつ10は、パンツ型のおむつであり、腹側部Aの両側縁部と背側部Bの両側縁部とが互いに接合されており、それによって、一対のサイドシール部16,16、ウエスト開口部17及び一対のレッグ開口部18,18が形成されている。 Hereinafter, the urination detection device of the present invention will be described based on the preferred embodiment thereof.
As shown in FIG. 2, theurination detection device 1 of the first embodiment includes a main body device 2 attached to the outer surface S1 of the diaper. The diaper 10 is preferably a disposable diaper.
Thediaper 10 shown in FIG. 2 is a disposable diaper, which is a liquid-permeable surface sheet 12, a liquid-impermeable or water-repellent leak-proof sheet 13, and a liquid-retaining absorber arranged between both sheets 12, 13. It is equipped with 14. On the non-skin facing surface side of the leak-proof sheet 13, an exterior sheet 15 made of a non-woven fabric having a single-layer or multi-layer structure is further arranged. Further, the diaper 10 has a ventral portion A arranged on the ventral side of the wearer at the time of wearing, a dorsal portion B arranged on the dorsal side, and a crotch portion C located between them. The diaper 10 is a pants-type diaper in which both side edges of the ventral side A and both side edges of the dorsal side B are joined to each other, whereby the pair of side seal portions 16, 16 and the waist opening are joined to each other. A portion 17 and a pair of leg openings 18, 18 are formed.
第1実施形態の排尿検出装置1は、図2に示されるように、おむつの外面S1に取り付けられる本体装置2を備えている。おむつ10は、好ましくは、使い捨ておむつである。
図2に示すおむつ10は、使い捨ておむつであり、液透過性の表面シート12、液不透過性又は撥水性の防漏シート13及び両シート12,13間に配置された液保持性の吸収体14を備えている。防漏シート13の非肌対向面側には、更に単層又は多層構造の不織布からなる外装シート15が配されている。また、おむつ10は、着用時に着用者の腹側に配される腹側部Aと、背側に配される背側部Bと、その間に位置する股下部Cとを有している。おむつ10は、パンツ型のおむつであり、腹側部Aの両側縁部と背側部Bの両側縁部とが互いに接合されており、それによって、一対のサイドシール部16,16、ウエスト開口部17及び一対のレッグ開口部18,18が形成されている。 Hereinafter, the urination detection device of the present invention will be described based on the preferred embodiment thereof.
As shown in FIG. 2, the
The
表面シート12、防漏シート13及び吸収体14としては、それぞれ、この種の物品に従来用いられている各種のものを特に制限なく用いることができる。例えば、表面シート12としては各種の不織布や開孔フィルム等を用いることができ、防漏シート13としては樹脂フィルムや、樹脂フィルムと不織布等との積層シート等を用いることができる。吸収体14としては、高吸収性ポリマーの粒子及び繊維材料から構成された吸収性コアをコアラップシートで被覆したもの等を用いることができる。防漏シート13は、透湿性のシートを用いることが好ましい。
As the surface sheet 12, the leak-proof sheet 13, and the absorber 14, various types conventionally used for this type of article can be used without particular limitation. For example, various non-woven fabrics, perforated films and the like can be used as the surface sheet 12, and a resin film and a laminated sheet of a resin film and a non-woven fabric or the like can be used as the leak-proof sheet 13. As the absorber 14, an absorbent core composed of particles of a highly absorbent polymer and a fiber material coated with a core wrap sheet or the like can be used. As the leak-proof sheet 13, it is preferable to use a moisture-permeable sheet.
本体装置2は、おむつの外面S1に取り付けられて使用される装置である。おむつの内面は、おむつの着用時に着用者の肌側に向けられる面であり、おむつの外面は、おむつの着用時に着用者の肌側とは反対側に向けられる面である。
本体装置2は、排尿による温度変化の情報を的確に入手可能とする観点から、おむつの排尿部位のおけるおむつ外面に取り付けることが好ましい。おむつの排尿部位とは、内部に吸収体14が存する部位である。排尿のより確実な検出の観点から、本体装置2は、股下部Cにおける、内部に吸収体14が存する部位に取り付けることが好ましく、また股下部Cにおける幅方向中央部に取り付けることが好ましい。 Themain body device 2 is a device attached to and used on the outer surface S1 of the diaper. The inner surface of the diaper is the surface facing the wearer's skin side when wearing the diaper, and the outer surface of the diaper is the surface facing the wearer's skin side when wearing the diaper.
Themain body device 2 is preferably attached to the outer surface of the diaper at the urination site of the diaper from the viewpoint of accurately obtaining information on the temperature change due to urination. The urination site of the diaper is a site where the absorber 14 is present inside. From the viewpoint of more reliable detection of urination, the main body device 2 is preferably attached to the portion of the inseam C where the absorber 14 is present, and is preferably attached to the central portion of the inseam C in the width direction.
本体装置2は、排尿による温度変化の情報を的確に入手可能とする観点から、おむつの排尿部位のおけるおむつ外面に取り付けることが好ましい。おむつの排尿部位とは、内部に吸収体14が存する部位である。排尿のより確実な検出の観点から、本体装置2は、股下部Cにおける、内部に吸収体14が存する部位に取り付けることが好ましく、また股下部Cにおける幅方向中央部に取り付けることが好ましい。 The
The
第1実施形態の排尿検出装置1は、図1(a)に示すように、本体装置2内に温度センサー3を備えている。また本体装置2内に、排尿判定部5(図8参照)を備えている。より具体的には、本体装置2は、おむつ10の外面S1と接触させる側の面を形成する平板状の内側壁体71と、おむつ10の外面S1と接触させる側とは反対側に位置するドーム状の外側カバー72とを有し、内側壁体71と外側カバー72に囲まれた収容空間74内に、温度センサー3、湿度センサー4及び排尿判定部5を備えている。温度センサー3としては、熱電対、サーミスタ等が好ましく用いられる。以下、おむつの外面S1をおむつ外面S1、おむつの内面S2をおむつ内面S2ともいう。
As shown in FIG. 1A, the urination detection device 1 of the first embodiment includes a temperature sensor 3 in the main body device 2. Further, the urination determination unit 5 (see FIG. 8) is provided in the main body device 2. More specifically, the main body device 2 is located on the side opposite to the flat plate-shaped inner side wall 71 forming the surface on the side of the diaper 10 in contact with the outer surface S1 and the side of the diaper 10 in contact with the outer surface S1. It has a diaper-shaped outer cover 72, and is provided with a temperature sensor 3, a humidity sensor 4, and a urination determination unit 5 in a storage space 74 surrounded by an inner side wall body 71 and an outer cover 72. As the temperature sensor 3, a thermocouple, a thermistor or the like is preferably used. Hereinafter, the outer surface S1 of the diaper is also referred to as the outer surface S1 of the diaper, and the inner surface S2 of the diaper is also referred to as the inner surface S2 of the diaper.
図4は、おむつ外面の表面温度の変化の測定方法の説明図であり、図5は、図4に示す測定装置を用いて、おむつに、人工尿を複数回供給したときの、おむつ外面の表面温度の変化を示したグラフである。図5に示すグラフは、図4に示すように、おむつ10を、サイドシール部を剥離して平面状に拡げて固定し、おむつ外面の温度を、おむつ外面に接触させた温度計81によりモニターしつつ、おむつ内面側に人工尿を1時間間隔で3回供給して得たものである。平面状に拡げたおむつ10は、内部に吸収体14が配された吸収部位の周囲を、アクリル製の支持体82における垂下する枠状の支持部に固定した。また支持体82の上部に温水槽83を配して、おむつ内面側の温度を、肌温度を想定した36℃程度に維持した。人工尿は、生理食塩水を用い、各回とも、36℃に保温したものを送液ポンプ84により約10秒かけて供給した。
FIG. 4 is an explanatory diagram of a method for measuring a change in the surface temperature of the outer surface of the diaper, and FIG. 5 shows the outer surface of the diaper when artificial urine is supplied to the diaper multiple times using the measuring device shown in FIG. It is a graph which showed the change of the surface temperature. In the graph shown in FIG. 5, as shown in FIG. 4, the diaper 10 is fixed by peeling off the side seal portion and spreading in a plane, and the temperature of the outer surface of the diaper is monitored by the thermometer 81 in contact with the outer surface of the diaper. While doing so, artificial urine was supplied to the inner surface of the diaper three times at 1-hour intervals. In the diaper 10 expanded in a plane shape, the periphery of the absorption portion in which the absorber 14 was arranged was fixed to the hanging frame-shaped support portion of the acrylic support 82. Further, a hot water tank 83 was arranged on the upper part of the support 82 to maintain the temperature on the inner surface side of the diaper at about 36 ° C. assuming the skin temperature. As the artificial urine, physiological saline was used, and the artificial urine kept at 36 ° C. was supplied by the liquid feed pump 84 over about 10 seconds each time.
図5に示すグラフに示すように、環境馴化開始から2時間後の初回の人工尿の注入時には、おむつ外面の温度は、注入直後に急激に上昇した後、元の温度付近又は元の温度以下まで低下し、2回目以降の注入時にも、急激に上昇した後、元の温度付近又は元の温度下まで低下した。
図6は、図5に示す1回目の注入時における注入後の温度変化の詳細を示すグラフである。図6に示すように、注入時点から8秒後くらいから急激に温度が上昇し、注入時点から15秒後以内に温度はピークに達している。図5に示すように、2回目及び3回目の注入時においても、温度の変化は、初回の注入時と同様である。
したがって、おむつ外面の温度の変化を記録しておき、温度の上昇速度が設定値を超えたときに排尿があったと判定することによって、排尿後の早いタイミングで排尿を検出可能であり、誤検出が少ない。またおむつ外面の温度は、排尿後の時間の経過により、おむつ内面側の温度に比して低下し易い。またおむつ内面側の湿度は、排尿後の低下が緩慢であるのに対して、おむつ外面の温度は、比較的早期に低下する。そのため、おむつ外面の温度のモニターを継続して行い、上昇速度が設定値を超えた温度上昇を捉えることにより、2回目以降の排尿の検出も可能となる。 As shown in the graph shown in FIG. 5, at the time of the first injection ofartificial urine 2 hours after the start of environmental acclimation, the temperature of the outer surface of the diaper rises sharply immediately after the injection and then is near the original temperature or below the original temperature. After the second and subsequent injections, the temperature increased sharply and then decreased to near the original temperature or below the original temperature.
FIG. 6 is a graph showing the details of the temperature change after the injection at the time of the first injection shown in FIG. As shown in FIG. 6, the temperature rises sharply from about 8 seconds after the injection time, and reaches the peak within 15 seconds from the injection time. As shown in FIG. 5, the change in temperature at the time of the second injection and the third injection is the same as that at the time of the first injection.
Therefore, by recording the change in the temperature of the outer surface of the diaper and determining that there was urination when the temperature rise rate exceeded the set value, it is possible to detect urination at an early timing after urination, and false detection is possible. Less is. Further, the temperature of the outer surface of the diaper tends to be lower than the temperature of the inner surface of the diaper with the passage of time after urination. Further, the humidity on the inner surface of the diaper decreases slowly after urination, whereas the temperature on the outer surface of the diaper decreases relatively early. Therefore, by continuously monitoring the temperature of the outer surface of the diaper and capturing the temperature rise in which the rising speed exceeds the set value, it is possible to detect the second and subsequent urination.
図6は、図5に示す1回目の注入時における注入後の温度変化の詳細を示すグラフである。図6に示すように、注入時点から8秒後くらいから急激に温度が上昇し、注入時点から15秒後以内に温度はピークに達している。図5に示すように、2回目及び3回目の注入時においても、温度の変化は、初回の注入時と同様である。
したがって、おむつ外面の温度の変化を記録しておき、温度の上昇速度が設定値を超えたときに排尿があったと判定することによって、排尿後の早いタイミングで排尿を検出可能であり、誤検出が少ない。またおむつ外面の温度は、排尿後の時間の経過により、おむつ内面側の温度に比して低下し易い。またおむつ内面側の湿度は、排尿後の低下が緩慢であるのに対して、おむつ外面の温度は、比較的早期に低下する。そのため、おむつ外面の温度のモニターを継続して行い、上昇速度が設定値を超えた温度上昇を捉えることにより、2回目以降の排尿の検出も可能となる。 As shown in the graph shown in FIG. 5, at the time of the first injection of
FIG. 6 is a graph showing the details of the temperature change after the injection at the time of the first injection shown in FIG. As shown in FIG. 6, the temperature rises sharply from about 8 seconds after the injection time, and reaches the peak within 15 seconds from the injection time. As shown in FIG. 5, the change in temperature at the time of the second injection and the third injection is the same as that at the time of the first injection.
Therefore, by recording the change in the temperature of the outer surface of the diaper and determining that there was urination when the temperature rise rate exceeded the set value, it is possible to detect urination at an early timing after urination, and false detection is possible. Less is. Further, the temperature of the outer surface of the diaper tends to be lower than the temperature of the inner surface of the diaper with the passage of time after urination. Further, the humidity on the inner surface of the diaper decreases slowly after urination, whereas the temperature on the outer surface of the diaper decreases relatively early. Therefore, by continuously monitoring the temperature of the outer surface of the diaper and capturing the temperature rise in which the rising speed exceeds the set value, it is possible to detect the second and subsequent urination.
第1実施形態における排尿判定部5は、図8に示すように、おむつ外面の温度の変化を記録し、該温度の上昇速度が設定値を超えたときに排尿があったと判定する機能を有する。具体的には、排尿判定部5は、CPU(Central Processing Unit)、ROM(Read Only Memory)やRAM(Random Access Memory)等の記憶装置、タイマー等を含んで構成されている。排尿判定部5は、温度センサー3と電気的に接続されており、排尿判定部5が行う処理は、例えば、CPUがROMやRAMなどに格納されたプログラムをRAMに展開して実行することにより実現される。
排尿判定部5は、図8に示すブロックダイアグラムに示されるように、機能的には、サンプリング時間発生部51、データサンプリング部52、温度データ保持メモリ53、温度立ち上がり速度検出部54、立ち上がり検出設定メモリ55、排尿検出部56を備えている。 As shown in FIG. 8, theurination determination unit 5 in the first embodiment has a function of recording a change in the temperature of the outer surface of the diaper and determining that urination has occurred when the rate of increase in the temperature exceeds a set value. .. Specifically, the urination determination unit 5 includes a CPU (Central Processing Unit), a storage device such as a ROM (Read Only Memory) and a RAM (Random Access Memory), a timer, and the like. The urination determination unit 5 is electrically connected to the temperature sensor 3, and the process performed by the urination determination unit 5 is performed, for example, by the CPU expanding a program stored in a ROM, RAM, or the like into a RAM and executing the process. It will be realized.
As shown in the block diagram shown in FIG. 8, theurination determination unit 5 functionally has a sampling time generation unit 51, a data sampling unit 52, a temperature data holding memory 53, a temperature rise speed detection unit 54, and a rise detection setting. It includes a memory 55 and a urination detection unit 56.
排尿判定部5は、図8に示すブロックダイアグラムに示されるように、機能的には、サンプリング時間発生部51、データサンプリング部52、温度データ保持メモリ53、温度立ち上がり速度検出部54、立ち上がり検出設定メモリ55、排尿検出部56を備えている。 As shown in FIG. 8, the
As shown in the block diagram shown in FIG. 8, the
サンプリング時間発生部51は、記憶装置に記憶されている温度データ取得間隔情報に基づき、データサンプリング部52に、温度センサー3による温度の計測を行うタイミング又は温度センサー3が計測した温度から排尿検出処理に使用する温度のデータを取得するタイミングに関するタイミング信号を出力する。タイミング信号が入力されたデータサンプリング部52は、タイミング信号が入力された時点の温度及び時刻のデータを温度データ保持メモリ53に格納する。
Based on the temperature data acquisition interval information stored in the storage device, the sampling time generation unit 51 performs urination detection processing from the timing of measuring the temperature by the temperature sensor 3 or the temperature measured by the temperature sensor 3 in the data sampling unit 52. Outputs a timing signal regarding the timing to acquire the temperature data used for. The data sampling unit 52 to which the timing signal is input stores the temperature and time data at the time when the timing signal is input in the temperature data holding memory 53.
温度立ち上がり速度検出部54は、温度データ保持メモリ53に格納されている過去の温度及び時刻データ並びにデータサンプリング部52により新たに取得された温度及び時刻情報から、所定時間当たりの温度変化量を算出する。排尿検出部56は、温度立ち上がり速度検出部54が算出した所定時間当たりの温度変化量を、立ち上がり検出設定メモリ55に格納されている排尿の判定基準と対比する。この排尿の判定基準は、所定時間当たりの温度変化量が、上昇速度が所定値を超える温度上昇に該当するか否かであり、越えている場合は、排尿があったと判定する。
The temperature rise speed detection unit 54 calculates the amount of temperature change per predetermined time from the past temperature and time data stored in the temperature data holding memory 53 and the temperature and time information newly acquired by the data sampling unit 52. do. The urination detection unit 56 compares the amount of temperature change per predetermined time calculated by the temperature rise rate detection unit 54 with the urination determination standard stored in the rise detection setting memory 55. The criterion for determining urination is whether or not the amount of temperature change per predetermined time corresponds to a temperature increase in which the rate of increase exceeds a predetermined value, and if it exceeds, it is determined that urination has occurred.
第1実施形態における排尿判定部5は、排尿表示手段58を備えている。また複数回の排尿を検出可能である。更に排尿の回数を記憶又は表示可能なように、排尿検出回数メモリ57を備えている。
排尿検出部56は、排尿があったと判定した場合は、排尿表示手段58に排尿検出情報を表出させ、また排尿検出回数メモリ57に格納されている排尿回数情報に対して排尿回数を1回増加させる更新を行う。排尿表示手段58に表出させる排尿検出情報は、排尿があったことを、液晶等からなる画面に文字や記号、色等で表示するものでもよいし、音や音声、振動等で排尿を知らせるものであってもよい。排尿検出情報としては、排尿があったことに加えて排尿回数を併せて表出させることが好ましい。 Theurination determination unit 5 in the first embodiment includes a urination display means 58. It is also possible to detect multiple urinations. Further, a memory for detecting the number of times of urination 57 is provided so that the number of times of urination can be stored or displayed.
When theurination detection unit 56 determines that there is urination, the urination display means 58 displays the urination detection information, and the urination count is once for the urination count information stored in the urination detection count memory 57. Make an increase update. The urination detection information displayed on the urination display means 58 may be one that displays the fact that urination has occurred on a screen made of a liquid crystal or the like with characters, symbols, colors, etc., and notifies the urination by sound, voice, vibration, or the like. It may be a thing. As the urination detection information, it is preferable to express the number of urination in addition to the urination.
排尿検出部56は、排尿があったと判定した場合は、排尿表示手段58に排尿検出情報を表出させ、また排尿検出回数メモリ57に格納されている排尿回数情報に対して排尿回数を1回増加させる更新を行う。排尿表示手段58に表出させる排尿検出情報は、排尿があったことを、液晶等からなる画面に文字や記号、色等で表示するものでもよいし、音や音声、振動等で排尿を知らせるものであってもよい。排尿検出情報としては、排尿があったことに加えて排尿回数を併せて表出させることが好ましい。 The
When the
排尿判定部5は、温度の上昇速度が1分当たり0.5℃以上、すなわち0.5℃/1分以上の場合に、排尿があったと判定することが好ましい。上昇速度がこの程度に急激な温度上昇を基準にして排尿を検出することにより、外気温や接触するものによる温度変化と排尿による温度変化との区別が一層明確となり、排尿によらない温度変化を排尿があったと誤検出することを一層確実に防止することができる。斯かる観点から、排尿があったと判定する基準として用いる温度の上昇速度は0.5℃/1分以上であることが好ましく、1.0℃/1分であることがより好ましく、1℃以上5℃以下/1分以上であることが更に好ましい。
It is preferable that the urination determination unit 5 determines that urination has occurred when the temperature rise rate is 0.5 ° C. or higher per minute, that is, 0.5 ° C./1 minute or higher. By detecting urination based on a temperature rise that is as rapid as this, the distinction between temperature changes due to outside air temperature and contact with urination and temperature changes due to urination becomes clearer, and temperature changes that are not due to urination can be detected. It is possible to more reliably prevent false detection that there is urination. From such a viewpoint, the rate of temperature rise used as a criterion for determining that urination has occurred is preferably 0.5 ° C./1 minute or more, more preferably 1.0 ° C./1 minute or more, and 1 ° C. or more. It is more preferably 5 ° C. or lower / 1 minute or longer.
温度の上昇速度を求めるために使用する温度データの取得間隔は、好ましくは2分以下、より好ましくは1分以下であり、また好ましくは1秒以上、より好ましくは10秒以上であり、また好ましくは1秒以上2分以下、より好ましくは1秒以上1分以下、更に好ましくは10秒以上1分以下である。
図7は、温度データの取得間隔を10秒、30秒、1分、2分、5分の5種類とし、それぞれについて、前の温度データ取得時の温度と次回の温度データ取得時の温度との差分(℃)を取得間隔で除した値を1分当たりの温度変化(℃)として示したグラフである。図6は、排尿時点からの温度の変化を連続的に示したものであるが、同じ排尿時点からの温度の変化を、温度データを間欠的に取得した場合には、図7に示すように、温度データの取得間隔により、排尿時に観測される1分当たりの上昇温度の最大量が異なる。
図7に示すように、温度データの取得間隔が短い方が、急激な温度情報を捉えやすく、排尿の検出精度が向上する。
上述した温度データの取得間隔は、好ましくは、温度の上昇速度を求めるために利用する2つの温度が観測された時点間の間隔であり、温度を連続的にモニターした場合に得られる連続データから適宜の2時点の温度をピックアップし、それらの2時点の温度及び時間間隔から温度の上昇速度を求める場合、当該2時点間の間隔であってもよい。 The acquisition interval of the temperature data used for determining the temperature rise rate is preferably 2 minutes or less, more preferably 1 minute or less, preferably 1 second or more, more preferably 10 seconds or more, and more preferably. Is 1 second or more and 2 minutes or less, more preferably 1 second or more and 1 minute or less, and further preferably 10 seconds or more and 1 minute or less.
In FIG. 7, the temperature data acquisition intervals are set to 5 types of 10 seconds, 30 seconds, 1 minute, 2 minutes, and 5 minutes, and the temperature at the time of the previous temperature data acquisition and the temperature at the time of the next temperature data acquisition are shown for each. It is a graph which showed the value which divided the difference (° C.) by the acquisition interval as the temperature change (° C.) per minute. FIG. 6 continuously shows the change in temperature from the time of urination, but when the temperature data is intermittently acquired, the change in temperature from the same time of urination is as shown in FIG. , The maximum amount of temperature rise per minute observed during urination differs depending on the temperature data acquisition interval.
As shown in FIG. 7, when the temperature data acquisition interval is short, it is easy to capture sudden temperature information and the accuracy of urination detection is improved.
The above-mentioned temperature data acquisition interval is preferably the interval between the time points at which the two temperatures used for determining the temperature rise rate are observed, and is based on the continuous data obtained when the temperature is continuously monitored. When the temperature at two appropriate time points is picked up and the temperature rise rate is obtained from the temperature and time interval between those two time points, the interval between the two time points may be used.
図7は、温度データの取得間隔を10秒、30秒、1分、2分、5分の5種類とし、それぞれについて、前の温度データ取得時の温度と次回の温度データ取得時の温度との差分(℃)を取得間隔で除した値を1分当たりの温度変化(℃)として示したグラフである。図6は、排尿時点からの温度の変化を連続的に示したものであるが、同じ排尿時点からの温度の変化を、温度データを間欠的に取得した場合には、図7に示すように、温度データの取得間隔により、排尿時に観測される1分当たりの上昇温度の最大量が異なる。
図7に示すように、温度データの取得間隔が短い方が、急激な温度情報を捉えやすく、排尿の検出精度が向上する。
上述した温度データの取得間隔は、好ましくは、温度の上昇速度を求めるために利用する2つの温度が観測された時点間の間隔であり、温度を連続的にモニターした場合に得られる連続データから適宜の2時点の温度をピックアップし、それらの2時点の温度及び時間間隔から温度の上昇速度を求める場合、当該2時点間の間隔であってもよい。 The acquisition interval of the temperature data used for determining the temperature rise rate is preferably 2 minutes or less, more preferably 1 minute or less, preferably 1 second or more, more preferably 10 seconds or more, and more preferably. Is 1 second or more and 2 minutes or less, more preferably 1 second or more and 1 minute or less, and further preferably 10 seconds or more and 1 minute or less.
In FIG. 7, the temperature data acquisition intervals are set to 5 types of 10 seconds, 30 seconds, 1 minute, 2 minutes, and 5 minutes, and the temperature at the time of the previous temperature data acquisition and the temperature at the time of the next temperature data acquisition are shown for each. It is a graph which showed the value which divided the difference (° C.) by the acquisition interval as the temperature change (° C.) per minute. FIG. 6 continuously shows the change in temperature from the time of urination, but when the temperature data is intermittently acquired, the change in temperature from the same time of urination is as shown in FIG. , The maximum amount of temperature rise per minute observed during urination differs depending on the temperature data acquisition interval.
As shown in FIG. 7, when the temperature data acquisition interval is short, it is easy to capture sudden temperature information and the accuracy of urination detection is improved.
The above-mentioned temperature data acquisition interval is preferably the interval between the time points at which the two temperatures used for determining the temperature rise rate are observed, and is based on the continuous data obtained when the temperature is continuously monitored. When the temperature at two appropriate time points is picked up and the temperature rise rate is obtained from the temperature and time interval between those two time points, the interval between the two time points may be used.
本実施形態の排尿検出装置1は、おむつの外面に取り付けられる本体装置2内に、前述した排尿判定部5を構成する、サンプリング時間発生部51、データサンプリング部52、温度データ保持メモリ53、温度立ち上がり速度検出部54、排尿検出部56を備えており、またこれらに必要な電力を供給する電力供給部(図示せず)も本体装置2内に備えている。本体装置2内に、サンプリング時間発生部51、データサンプリング部52、温度データ保持メモリ53、温度立ち上がり速度検出部54、排尿検出部56及び電力供給部を備えることで、例えば本体装置2と電力供給部とを結ぶ電力供給コードが不要となり、本体装置2を取り付けたおむつの着用者の行動が制約されにくくなる。これにより、例えば、日常の生活環境に近い条件下において排尿に関するデータを取得することができ、例えば、おむつの交換時期等の予測や管理をより正確に行うことができる。
The urination detection device 1 of the present embodiment has a sampling time generation unit 51, a data sampling unit 52, a temperature data holding memory 53, and a temperature, which constitute the above-mentioned urination determination unit 5 in the main body device 2 mounted on the outer surface of the diaper. A rising speed detection unit 54 and a urination detection unit 56 are provided, and a power supply unit (not shown) for supplying the power required for these is also provided in the main body device 2. The main unit 2 is provided with a sampling time generation unit 51, a data sampling unit 52, a temperature data holding memory 53, a temperature rise speed detection unit 54, a urination detection unit 56, and a power supply unit. The power supply cord connecting the parts is not required, and the behavior of the diaper wearer to which the main body device 2 is attached is less likely to be restricted. Thereby, for example, it is possible to acquire data on urination under conditions close to the daily living environment, and for example, it is possible to more accurately predict and manage the timing of changing diapers.
本発明の前記本体装置は、おむつの外面に取り付けられる本体装置2内に、前述した排尿判定部5を構成する、サンプリング時間発生部51、データサンプリング部52、温度データ保持メモリ53、外部と通信可能な装置(図示せず)及びこれらに必要な電力を供給する電力供給部(図示せず)を備えることも好ましい。本体装置2内に、サンプリング時間発生部51、データサンプリング部52、温度データ保持メモリ53、外部と無線通信可能な装置及び電力供給部を備え、無線により、本体装置2と通信可能な補助装置に、必要なデータを送信し、当該補助装置が備えるCPU,記憶装置等を、温度立ち上がり速度検出部54、排尿検出部56、排尿表示手段58等として機能させることで、本体装置2を取り付けたおむつの着用者の行動が制約されるのを抑制することができる。
The main body device of the present invention communicates with the sampling time generation unit 51, the data sampling unit 52, the temperature data holding memory 53, and the outside, which constitute the above-mentioned urination determination unit 5 in the main body device 2 mounted on the outer surface of the diaper. It is also preferable to include possible devices (not shown) and a power supply unit (not shown) that supplies the necessary power to them. The main unit 2 is provided with a sampling time generation unit 51, a data sampling unit 52, a temperature data holding memory 53, a device capable of wireless communication with the outside, and a power supply unit, and is an auxiliary device capable of wirelessly communicating with the main unit 2. A diaper to which the main body device 2 is attached by transmitting necessary data and making the CPU, storage device, etc. provided in the auxiliary device function as a temperature rise speed detection unit 54, a urination detection unit 56, a urination display means 58, etc. It is possible to prevent the behavior of the wearer from being restricted.
本発明の排尿検出装置は、本体装置2が、温度センサー3に加えて湿度センサー4を備えることが好ましい。排尿時の湿度変化のみに基づき排尿を検出する方法は、初回の排尿後に上昇した湿度が維持されて2回目の排尿を検出することが難しいが、温度の上昇速度に加えて湿度の上昇を検出したときに排尿を検出させることで、排尿の検出の精度が向上し、排尿によらない温度上昇を排尿として検出する誤検出もより確実に防止することができる。湿度センサー4としては、各種公知のものを用いることができ、例えば、高分子抵抗式や高分子静電容量式の湿度センサー等を用いることができる。市販品を用いることもでき、例えばTDK社製の「湿度センサCHSタイプ」等を用いることもできる。
In the urination detection device of the present invention, it is preferable that the main body device 2 includes a humidity sensor 4 in addition to the temperature sensor 3. In the method of detecting urination based only on the change in humidity during urination, it is difficult to detect the second urination because the increased humidity is maintained after the first urination, but the increase in humidity is detected in addition to the rate of temperature increase. By detecting urination at the time of urination, the accuracy of urination detection is improved, and erroneous detection of detecting a temperature rise not caused by urination as urination can be more reliably prevented. As the humidity sensor 4, various known ones can be used, and for example, a polymer resistance type or a polymer capacitance type humidity sensor can be used. A commercially available product can also be used, and for example, a "humidity sensor CHS type" manufactured by TDK can be used.
第2実施形態の排尿検出装置1Aは、図9に示すように、本体装置2Aが、温度センサー3に加えて湿度センサー4を備えている。また第2実施形態における排尿判定部5Aは、湿度センサー4からの情報を排尿の検出に利用している。
以下、第2実施形態における排尿判定部5Aの好ましい構成の一例について、図10に示すブロックダイアグラムを参照して説明する。第2実施形態における排尿判定部5Aについては、図8に示す排尿判定部5と異なる点について説明し、同様の点については説明を省略する。排尿判定部5Aは、図8に示す構成に加えて、湿度用のデータサンプリング部62、湿度データ保持メモリ63、湿度変化検出部64を備えている。
第2実施形態における排尿判定部5Aにおいては、サンプリング時間発生部51は、記憶装置に記憶されているデータ取得間隔情報に基づき、温度用のデータサンプリング部52に、前述したタイミング信号を出力するとともに、湿度用のデータサンプリング部62に、湿度センサー4による湿度の計測を行うタイミング又は湿度センサー4が計測した湿度から排尿検出処理に使用する湿度のデータを取得するタイミングに関するタイミング信号を出力する。タイミング信号が入力された湿度用のデータサンプリング部62は、タイミング信号が入力された時点の湿度及び時刻のデータを湿度データ保持メモリ63に格納する。 In theurination detection device 1A of the second embodiment, as shown in FIG. 9, the main body device 2A includes a humidity sensor 4 in addition to the temperature sensor 3. Further, the urination determination unit 5A in the second embodiment uses the information from the humidity sensor 4 to detect urination.
Hereinafter, an example of a preferable configuration of theurination determination unit 5A in the second embodiment will be described with reference to the block diagram shown in FIG. The urination determination unit 5A in the second embodiment will be described with respect to the differences from the urination determination unit 5 shown in FIG. 8, and the same points will be omitted. In addition to the configuration shown in FIG. 8, the urination determination unit 5A includes a humidity data sampling unit 62, a humidity data holding memory 63, and a humidity change detection unit 64.
In theurination determination unit 5A of the second embodiment, the sampling time generation unit 51 outputs the timing signal described above to the temperature data sampling unit 52 based on the data acquisition interval information stored in the storage device. , The data sampling unit 62 for humidity outputs a timing signal regarding the timing of measuring the humidity by the humidity sensor 4 or the timing of acquiring the humidity data used for the urination detection process from the humidity measured by the humidity sensor 4. The humidity data sampling unit 62 to which the timing signal is input stores the humidity and time data at the time when the timing signal is input in the humidity data holding memory 63.
以下、第2実施形態における排尿判定部5Aの好ましい構成の一例について、図10に示すブロックダイアグラムを参照して説明する。第2実施形態における排尿判定部5Aについては、図8に示す排尿判定部5と異なる点について説明し、同様の点については説明を省略する。排尿判定部5Aは、図8に示す構成に加えて、湿度用のデータサンプリング部62、湿度データ保持メモリ63、湿度変化検出部64を備えている。
第2実施形態における排尿判定部5Aにおいては、サンプリング時間発生部51は、記憶装置に記憶されているデータ取得間隔情報に基づき、温度用のデータサンプリング部52に、前述したタイミング信号を出力するとともに、湿度用のデータサンプリング部62に、湿度センサー4による湿度の計測を行うタイミング又は湿度センサー4が計測した湿度から排尿検出処理に使用する湿度のデータを取得するタイミングに関するタイミング信号を出力する。タイミング信号が入力された湿度用のデータサンプリング部62は、タイミング信号が入力された時点の湿度及び時刻のデータを湿度データ保持メモリ63に格納する。 In the
Hereinafter, an example of a preferable configuration of the
In the
湿度変化検出部64は、湿度データ保持メモリ63に格納されている過去の湿度及び時刻データ又は湿度用のデータサンプリング部62により新たに取得された湿度及び時刻情報から、湿度、湿度の変化量又は所定時間当たりの湿度変化量を算出する。そして、排尿検出部56Aは、図8に示す排尿判定部における排尿検出部56と同様に、温度の上昇速度が所定値を超えるか否かを基準とする第1の判定を行う。また、湿度若しくは湿度の変化量が所定値を超えるか又は所定時間当たりの湿度変化量が所定値を超えたときに、排尿に伴う湿度の変化が生じたとする第2の判定を行う。例えば、湿度が所定の相対湿度60%を超えたときに、排尿に伴う湿度の変化が生じたとする第2の判定を行ってもよく、湿度の増加量が所定の値を上回っときに、排尿に伴う湿度の変化が生じたとする第2の判定を行ってもよく、1分当たりの湿度の変化量が所定量を上回ったときに、排尿に伴う湿度の変化が生じたとする第2の判定を行ってもよい。
そして、排尿検出部56Aは、第1の判定及び第2の判定が共に排尿と判定する基準を満たした場合に、排尿があったと判定する。排尿検出部56Aが排尿があったと判定した後の処理は、排尿検出部56と同様である。 The humiditychange detection unit 64 determines the humidity, the amount of change in humidity, or the amount of change in humidity from the past humidity and time data stored in the humidity data holding memory 63 or the humidity and time information newly acquired by the data sampling unit 62 for humidity. Calculate the amount of humidity change per predetermined time. Then, the urination detection unit 56A makes the first determination based on whether or not the temperature rise rate exceeds a predetermined value, similarly to the urination detection unit 56 in the urination determination unit shown in FIG. Further, when the humidity or the amount of change in humidity exceeds a predetermined value or the amount of change in humidity per predetermined time exceeds a predetermined value, a second determination is made that the change in humidity due to urination has occurred. For example, a second determination may be made that the humidity changes due to urination when the humidity exceeds a predetermined relative humidity of 60%, and urination occurs when the amount of increase in humidity exceeds a predetermined value. The second determination that the change in humidity due to urination has occurred may be made, and the second determination that the change in humidity due to urination has occurred when the amount of change in humidity per minute exceeds a predetermined amount. May be done.
Then, theurination detection unit 56A determines that urination has occurred when both the first determination and the second determination satisfy the criteria for determining urination. The processing after the urination detection unit 56A determines that urination has occurred is the same as that of the urination detection unit 56.
そして、排尿検出部56Aは、第1の判定及び第2の判定が共に排尿と判定する基準を満たした場合に、排尿があったと判定する。排尿検出部56Aが排尿があったと判定した後の処理は、排尿検出部56と同様である。 The humidity
Then, the
本発明の排尿検出装置において、温度センサー3は、図1又は図9に示すように、本体装置2,2Aを、その高さTを2等分して上半部Uと下半部Dとしたときの下半部Dに配置されていることが好ましい。本体装置2の高さTは、おむつの外面S1に取り付けられたときに、該外面S1と垂直な方向であり、下半部Dは上半部Uと比較して外面S1に近い側に配される。温度センサー3が下半部Dに配されていると、おむつ外面S1の温度変化を検出し易くなり、排尿検出の精度が向上する。
In the urination detection device of the present invention, as shown in FIG. 1 or 9, the temperature sensor 3 divides the main body devices 2 and 2A into two equal parts, the height T thereof, and the upper half U and the lower half D. It is preferable that it is arranged in the lower half D at the time of urination. The height T of the main body device 2 is in the direction perpendicular to the outer surface S1 when attached to the outer surface S1 of the diaper, and the lower half D is arranged closer to the outer surface S1 as compared with the upper half U. Will be done. When the temperature sensor 3 is arranged in the lower half D, it becomes easy to detect the temperature change of the outer surface S1 of the diaper, and the accuracy of urination detection is improved.
また本体装置2,2Aは、図1又は図9に示すように、おむつの外面と接触させる側とは反対側に、温度センサー3を覆う外側カバー72を有し、該外側カバー72と温度センサー3との間に空間を有することが好ましい。外側カバー72と温度センサー3との間に空間を形成することで、外部温度が排尿の検出に影響することが抑制され、排尿検出の精度が向上する。外側カバー72の形成材料としては、プラスチック、金属、セラミックが挙げられるが、おむつの温度検知精度の観点から、プラスチック製であることが好ましい。
Further, as shown in FIGS. 1 or 9, the main body devices 2 and 2A have an outer cover 72 that covers the temperature sensor 3 on the side opposite to the side that comes into contact with the outer surface of the diaper, and the outer cover 72 and the temperature sensor are provided. It is preferable to have a space between 3 and 3. By forming a space between the outer cover 72 and the temperature sensor 3, it is suppressed that the external temperature affects the detection of urination, and the accuracy of urination detection is improved. Examples of the material for forming the outer cover 72 include plastic, metal, and ceramic, but from the viewpoint of the temperature detection accuracy of the diaper, it is preferably made of plastic.
また本体装置2,2Aは、図1又は図9に示すように、おむつの外面と接触させる側に内側壁体71、おむつの外面と接触させる側とは反対側に外側カバー72を有している。
おむつ外面と接触させる側とは反対側を覆う外側カバー72は、おむつ外面と接触させる側を構成する内側壁体71とは、素材が同一でも異なっていても良いが、外側カバー72は、内側壁体71の少なくとも一部よりも熱伝導率が低いことが好ましい。例えば、外側カバー72の熱伝導率が、内側壁体71の全体又は一部、例えば内側壁体71における、温度センサー3と重なる部分の熱伝導率よりも低いと、外気温の影響や接触するもの温度による影響を排除又は低減でき、おむつ外面の温度及びその変化を一層高精度に測定可能となり、一層高精度の排尿の検出が可能となる。
斯かる観点から、外側カバー72の熱伝導率は20W/m・K以下が好ましく、内側壁体71は、少なくとも一部、好ましくは温度検知部の熱伝導率は100W/m・K以上であることが好ましい。温度検知部は、温度センサー3と重なる部位であり、図9に示すように、内側壁体71の一部に別素材からなる温度伝達部材31を配して形成されていてもよいし、同一素材からなる内側壁体71の一部であっても良い。内側壁体71における、熱伝導率が外側カバー72の熱伝導率よりも低い部位、及び温度伝達部材31が配されている部位は、本体装置2の、おむつの外面と対向させる面における、温度センサー3と重なる部分である温度検知部に、少なくとも一部が配されていることが好ましい。 Further, as shown in FIGS. 1 or 9, the main body devices 2 and 2A have an inner side wall body 71 on the side in contact with the outer surface of the diaper and an outer cover 72 on the side opposite to the side in contact with the outer surface of the diaper. There is.
Theouter cover 72 that covers the side opposite to the side that comes into contact with the outer surface of the diaper may be made of the same material or different from the inner side wall body 71 that constitutes the side that comes into contact with the outer surface of the diaper, but the outer cover 72 is the inner side. It is preferable that the thermal conductivity is lower than that of at least a part of the wall body 71. For example, if the thermal conductivity of the outer cover 72 is lower than the thermal conductivity of the whole or a part of the inner side wall body 71, for example, the part of the inner side wall body 71 that overlaps with the temperature sensor 3, the influence of the outside air temperature or contact is made. The influence of the temperature of the diaper can be eliminated or reduced, the temperature of the outer surface of the diaper and its change can be measured with higher accuracy, and urination can be detected with higher accuracy.
From such a viewpoint, the thermal conductivity of theouter cover 72 is preferably 20 W / m · K or less, and the thermal conductivity of the inner side wall 71 is at least a part, preferably 100 W / m · K or more. Is preferable. The temperature detection unit is a portion that overlaps with the temperature sensor 3, and as shown in FIG. 9, the temperature detection unit may be formed by arranging a temperature transmission member 31 made of a different material on a part of the inner side wall body 71, or the same. It may be a part of the inner side wall body 71 made of a material. The portion of the inner side wall body 71 where the thermal conductivity is lower than the thermal conductivity of the outer cover 72 and the portion where the temperature transmission member 31 is arranged are the temperatures on the surface of the main body device 2 facing the outer surface of the diaper. It is preferable that at least a part thereof is arranged in the temperature detection unit which is a part overlapping with the sensor 3.
おむつ外面と接触させる側とは反対側を覆う外側カバー72は、おむつ外面と接触させる側を構成する内側壁体71とは、素材が同一でも異なっていても良いが、外側カバー72は、内側壁体71の少なくとも一部よりも熱伝導率が低いことが好ましい。例えば、外側カバー72の熱伝導率が、内側壁体71の全体又は一部、例えば内側壁体71における、温度センサー3と重なる部分の熱伝導率よりも低いと、外気温の影響や接触するもの温度による影響を排除又は低減でき、おむつ外面の温度及びその変化を一層高精度に測定可能となり、一層高精度の排尿の検出が可能となる。
斯かる観点から、外側カバー72の熱伝導率は20W/m・K以下が好ましく、内側壁体71は、少なくとも一部、好ましくは温度検知部の熱伝導率は100W/m・K以上であることが好ましい。温度検知部は、温度センサー3と重なる部位であり、図9に示すように、内側壁体71の一部に別素材からなる温度伝達部材31を配して形成されていてもよいし、同一素材からなる内側壁体71の一部であっても良い。内側壁体71における、熱伝導率が外側カバー72の熱伝導率よりも低い部位、及び温度伝達部材31が配されている部位は、本体装置2の、おむつの外面と対向させる面における、温度センサー3と重なる部分である温度検知部に、少なくとも一部が配されていることが好ましい。 Further, as shown in FIGS. 1 or 9, the
The
From such a viewpoint, the thermal conductivity of the
また本体装置2,2Aは、温度センサー3の、おむつの外面と接触させる側とは反対側を覆う外側カバーを有し、外側カバーは、断熱性の素材で形成されているか、内面若しくは外面に断熱性の素材からなる断熱層を備えるか、又は厚み(肉厚)が1mm以上であることが好ましい。温度センサー3の外側が断熱性の高いカバーで覆われていると、外部温度が排尿の検出に影響することが抑制され、排尿検出の精度が向上する。
断熱性の素材としては、プラスチック、セラミックス、シリコン樹脂、ウレタン系樹脂等が挙げられる。断熱性の素材は、熱伝導率が20W/m・K以下であり、より好ましくは1W/m・K以下である。
断熱層は、例えばプラスチック又は金属製の基材の内面若しくは外面又は内外両面に設けられる。
外側カバーの厚み(肉厚)は、外側カバーがプラスチック製である場合、好ましくは1mm以上、より好ましくは2mm以上である。上限は特にないが、装着時の違和感の抑制の観点から5mm以下であることが好ましい。 Further, the main body devices 2 and 2A have an outer cover covering the side of the temperature sensor 3 opposite to the side in contact with the outer surface of the diaper, and the outer cover is made of a heat insulating material or has an inner surface or an outer surface. It is preferable that a heat insulating layer made of a heat insulating material is provided or the thickness (thickness) is 1 mm or more. When the outside of the temperature sensor 3 is covered with a cover having a high heat insulating property, it is suppressed that the external temperature affects the detection of urination, and the accuracy of urination detection is improved.
Examples of the heat insulating material include plastics, ceramics, silicon resins, urethane resins and the like. The heat insulating material has a thermal conductivity of 20 W / m · K or less, more preferably 1 W / m · K or less.
The heat insulating layer is provided on, for example, the inner surface, the outer surface, or both inner and outer surfaces of a plastic or metal base material.
When the outer cover is made of plastic, the thickness (thickness) of the outer cover is preferably 1 mm or more, more preferably 2 mm or more. There is no particular upper limit, but it is preferably 5 mm or less from the viewpoint of suppressing discomfort when worn.
断熱性の素材としては、プラスチック、セラミックス、シリコン樹脂、ウレタン系樹脂等が挙げられる。断熱性の素材は、熱伝導率が20W/m・K以下であり、より好ましくは1W/m・K以下である。
断熱層は、例えばプラスチック又は金属製の基材の内面若しくは外面又は内外両面に設けられる。
外側カバーの厚み(肉厚)は、外側カバーがプラスチック製である場合、好ましくは1mm以上、より好ましくは2mm以上である。上限は特にないが、装着時の違和感の抑制の観点から5mm以下であることが好ましい。 Further, the
Examples of the heat insulating material include plastics, ceramics, silicon resins, urethane resins and the like. The heat insulating material has a thermal conductivity of 20 W / m · K or less, more preferably 1 W / m · K or less.
The heat insulating layer is provided on, for example, the inner surface, the outer surface, or both inner and outer surfaces of a plastic or metal base material.
When the outer cover is made of plastic, the thickness (thickness) of the outer cover is preferably 1 mm or more, more preferably 2 mm or more. There is no particular upper limit, but it is preferably 5 mm or less from the viewpoint of suppressing discomfort when worn.
また本体装置2,2Aは、図1又は図9に示すように、おむつの外面S1と対向させる面に、おむつの外面S1の温度を温度センサー3に伝達する温度伝達部材31を備えることが好ましい。図1及び図9に示す本体装置2,2Aにおいては、内側壁体71に形成された開口部を貫通して、金属製、より具体的にはステンレス、銅又はアルミニウム製の円柱状の温度伝達部材31が配されており、温度伝達部材31の一端が温度センサー3と接触しており、本体装置2をおむつ外面S1に取り付けたときに、温度伝達部材31の他端がおむつの外面S1と接触するようになされている。温度伝達部材31は、熱伝導率の高い素材からなることが好ましく、例えば、温度伝達部材31は、ステンレス若しくは銅やアルミニウム等の比較的熱伝導率が高い金属製、アルミナ等のセラミックス製であることが好ましい。温度伝達部材31の熱伝導率は、好ましくは20W/m・K以上、より好ましくは100W/m・K以上である。
温度伝達部材31は、保冷剤等に用いられているゲル剤等であってもよい。ゲル剤としては、高分子吸収体に溶媒を含侵させたゲル剤を高分子膜で包んだもの等が挙げられる。
温度伝達部材31を配して、おむつ外面S1の熱が温度センサー3に伝達され易くすることで、おむつ外面S1の熱を検出し易くなり、また外部の温度変化の排尿の検出への影響を低減できる。 Further, as shown in FIGS. 1 or 9, the main body devices 2 and 2A preferably include a temperature transmission member 31 for transmitting the temperature of the outer surface S1 of the diaper to the temperature sensor 3 on the surface facing the outer surface S1 of the diaper. .. In the main body devices 2 and 2A shown in FIGS. 1 and 9, a columnar temperature transfer made of metal, more specifically stainless steel, copper or aluminum, penetrates the opening formed in the inner side wall body 71. A member 31 is arranged, one end of the temperature transmission member 31 is in contact with the temperature sensor 3, and when the main body device 2 is attached to the outer surface S1 of the diaper, the other end of the temperature transmission member 31 is in contact with the outer surface S1 of the diaper. It is designed to be in contact. The temperature transfer member 31 is preferably made of a material having a high thermal conductivity. For example, the temperature transfer member 31 is made of stainless steel, a metal having a relatively high thermal conductivity such as copper or aluminum, or ceramics such as alumina. Is preferable. The thermal conductivity of the temperature transfer member 31 is preferably 20 W / m · K or more, more preferably 100 W / m · K or more.
Thetemperature transmission member 31 may be a gel agent or the like used as a cold insulating agent or the like. Examples of the gel agent include those obtained by wrapping a gel agent in which a polymer absorber is impregnated with a solvent with a polymer membrane.
By arranging thetemperature transmission member 31 to facilitate the heat transfer of the diaper outer surface S1 to the temperature sensor 3, it becomes easier to detect the heat of the diaper outer surface S1 and the influence of the external temperature change on the detection of urination. Can be reduced.
温度伝達部材31は、保冷剤等に用いられているゲル剤等であってもよい。ゲル剤としては、高分子吸収体に溶媒を含侵させたゲル剤を高分子膜で包んだもの等が挙げられる。
温度伝達部材31を配して、おむつ外面S1の熱が温度センサー3に伝達され易くすることで、おむつ外面S1の熱を検出し易くなり、また外部の温度変化の排尿の検出への影響を低減できる。 Further, as shown in FIGS. 1 or 9, the
The
By arranging the
また本体装置2,2Aは、図1又は図9に示すように、おむつの外面と接触させる側に内側壁体71、おむつの外面と接触させる側とは反対側に外側カバー72を有しており、その内側壁体71及び外側カバー72は、図11に示すように、その一方又は双方に通気孔75が形成されていることが好ましい。温度及び湿度の一方又は双方の検出の点から好ましい。図11(a)及び(b)は、おむつ外面と接触させる側とは反対側を覆う外側カバー72に通気孔75を設けた例、図11(c)及び(d)は、おむつ外面と接触させる側を覆う内側壁体71に通気孔75を設けた例である。外側カバー72及び内側壁体71の何れか一方のみに通気孔75を設けてもよいし、両方に通気孔75を設けてもよい。
Further, as shown in FIGS. 1 or 9, the main body devices 2 and 2A have an inner side wall body 71 on the side in contact with the outer surface of the diaper and an outer cover 72 on the side opposite to the side in contact with the outer surface of the diaper. As shown in FIG. 11, it is preferable that the inner side wall 71 and the outer cover 72 are formed with ventilation holes 75 on one or both of them. It is preferable from the viewpoint of detecting one or both of temperature and humidity. 11 (a) and 11 (b) are examples in which the vent hole 75 is provided in the outer cover 72 covering the side opposite to the side in contact with the outer surface of the diaper, and FIGS. 11 (c) and 11 (d) show contact with the outer surface of the diaper. This is an example in which a ventilation hole 75 is provided in the inner side wall body 71 that covers the side to be to be moved. Vents 75 may be provided in only one of the outer cover 72 and the inner side wall 71, or both may be provided with the vents 75.
また本体装置2,2Aは、図1又は図9に示すように、おむつの外面と対向させる面に、該おむつの外面に止着させるための止着材73を備えていることが好ましい。止着材73としては、粘着剤を塗工して形成した粘着層や、機械的面ファスナーの雄部材等を挙げることができる。本体装置2をおむつの外面S1に取り付ける方法は、特に制限されるものではなく、テープで固定したり、伸縮性のネットで固定したり、胴の周囲に装着される伸縮性の筒状固定具により押し付ける方法等が挙げられる。おむつ外面に脱着自在に固定可能なものが好ましい。
Further, as shown in FIG. 1 or 9, it is preferable that the main body devices 2 and 2A are provided with a fastening material 73 for fastening to the outer surface of the diaper on the surface facing the outer surface of the diaper. Examples of the fastening material 73 include an adhesive layer formed by applying an adhesive, a male member of a mechanical surface fastener, and the like. The method of attaching the main body device 2 to the outer surface S1 of the diaper is not particularly limited, and is fixed with a tape, fixed with an elastic net, or an elastic tubular fixture attached around the body. There is a method of pressing with a diaper. Those that can be detachably fixed to the outer surface of the diaper are preferable.
第1実施形態の排尿検出装置1及び第2実施形態の排尿検出装置1Aを用い、本体装置2又は2Aを、おむつの排尿部位におけるおむつの外面に固定し、該外面の表面の温度を計測し、該温度の上昇速度が設定値を超えたときに排尿があったと判定する排尿の検出方法は、本発明の排尿検出方法の好ましい実施態様の一例であり、排尿検出装置1及び排尿検出装置1Aに関する上述した好ましい構成や説明は、本発明の排尿検出方法に適宜適用可能である。
Using the urination detection device 1 of the first embodiment and the urination detection device 1A of the second embodiment, the main body device 2 or 2A is fixed to the outer surface of the diaper at the urination site of the diaper, and the temperature of the surface of the outer surface is measured. The method for detecting urination, which determines that urination has occurred when the rate of increase in temperature exceeds a set value, is an example of a preferred embodiment of the method for detecting urination of the present invention, and is an example of the urination detection device 1 and the urination detection device 1A. The above-mentioned preferable configuration and description regarding the above can be appropriately applied to the urination detection method of the present invention.
本発明の排尿検出装置における本体装置を取り付けるおむつ又は本発明の排尿検出方法におけるおむつは、吸収体14及び該吸収体14の外面側(非肌対向面側)に配された透湿性の防漏シートを備えていることが好ましい。そして、本体装置2は、おむつの外面S1における、透湿性の防漏シートと重なる部位に取り付けられることが、排尿後のおむつの外面から蒸気を逃がして、次回の排尿までに該外面の温度を効率よく低下させ、それによって、次回の排尿、及び複数回の排尿の検出が容易となる観点から好ましい。
透湿性の防漏シートとしては、透湿性で且つ液不透過性のフィルム、例えば微多孔性フィルム等を用いることが好ましい。微多孔性フィルムは、例えば、疎水性の熱可塑性樹脂と、炭酸カルシウム等からなる微小な無機フィラー又は前記熱可塑性樹脂と相溶性のない有機高分子等とを溶融混練してフィルムを形成し、該フィルムを一軸又は二軸延伸して得られる。
本体装置2を取り付けるおむつには、本体装置2を取り付ける部位が、印刷や、止着材が止着されやすい部材の配置等により、表示されていることも好ましい。 The diaper to which the main body device in the urination detection device of the present invention is attached or the diaper in the urination detection method of the present invention is a moisture-permeable leak-proof material arranged on the outer surface side (non-skin facing surface side) of theabsorber 14 and the absorber 14. It is preferable to have a seat. Then, the main body device 2 is attached to a portion of the outer surface S1 of the diaper that overlaps with the moisture-permeable leak-proof sheet, so that steam is released from the outer surface of the diaper after urination, and the temperature of the outer surface is lowered by the next urination. It is preferable from the viewpoint of efficiently lowering the temperature, thereby facilitating the detection of the next urination and the detection of multiple urinations.
As the moisture-permeable leak-proof sheet, it is preferable to use a moisture-permeable and liquid-impermeable film, for example, a microporous film. The microporous film is formed by melt-kneading, for example, a hydrophobic thermoplastic resin and a minute inorganic filler made of calcium carbonate or the like or an organic polymer incompatible with the thermoplastic resin to form a film. It is obtained by stretching the film uniaxially or biaxially.
It is also preferable that the portion to which themain body device 2 is attached is displayed on the diaper to which the main body device 2 is attached by printing or arranging a member to which the fastening material is easily fastened.
透湿性の防漏シートとしては、透湿性で且つ液不透過性のフィルム、例えば微多孔性フィルム等を用いることが好ましい。微多孔性フィルムは、例えば、疎水性の熱可塑性樹脂と、炭酸カルシウム等からなる微小な無機フィラー又は前記熱可塑性樹脂と相溶性のない有機高分子等とを溶融混練してフィルムを形成し、該フィルムを一軸又は二軸延伸して得られる。
本体装置2を取り付けるおむつには、本体装置2を取り付ける部位が、印刷や、止着材が止着されやすい部材の配置等により、表示されていることも好ましい。 The diaper to which the main body device in the urination detection device of the present invention is attached or the diaper in the urination detection method of the present invention is a moisture-permeable leak-proof material arranged on the outer surface side (non-skin facing surface side) of the
As the moisture-permeable leak-proof sheet, it is preferable to use a moisture-permeable and liquid-impermeable film, for example, a microporous film. The microporous film is formed by melt-kneading, for example, a hydrophobic thermoplastic resin and a minute inorganic filler made of calcium carbonate or the like or an organic polymer incompatible with the thermoplastic resin to form a film. It is obtained by stretching the film uniaxially or biaxially.
It is also preferable that the portion to which the
以上、本発明をその好ましい実施形態に基づき説明したが、本発明は上述した実施形態に限定されない。
排尿検出装置は、排尿判定部の機能を、本体装置と補助装置とに分けて備えていても良い。例えば、第1及び第2実施形態の排尿検出装置においては、本体装置2,2A内に、排尿判定部5,5A及び電池等の電力供給部が配されていたが、排尿判定部5,5Aの機能の全体又は一部を、本体装置2,2Aと通信可能な補助装置に設けてもよい。その場合、本体装置2,2A内に、補助装置と有線又はWi-Fi(登録商標)等の無線でデータの伝達可能な通信部を設け、温度センサー又は湿度センサーからの温度又は湿度のデータを、必要なアプリやプログラムがインストールされた補助装置に対して出力し、該補助装置に、排尿検出部56,56Aの判定及び判定結果の表示を行わせることもできる。また、排尿判定部5,5Aにおける排尿表示手段以外の機能を補助装置に行わせることもできる。補助装置は、例えばスマートフォン等の携帯端末や、デスクトップ又はラップトップのパソコン等である。電力供給部が備える電池は、リチウムイオン電池やニッケル水素電池等の充電池(2次電池)であることが好ましいが、充電不可能な乾電池や水素電池等であっても良い。
本体装置2,2Aの形状も適宜変更可能であり、例えば平面視形状は円形のものに代えて、楕円形、三角形、四角形等の多角形、トランプのハート形等とすることもできる。また本体装置2,2Aは、平面視したときの直径又は円相当径よりも高さTが小さい扁平な形状であることが好ましいが、非偏平な形状のものであってもよい。また外側カバーも、ドーム状に代えて、平坦な天面を有する筒状体等とすることもできる。 Although the present invention has been described above based on the preferred embodiment thereof, the present invention is not limited to the above-described embodiment.
The urination detection device may be provided with the function of the urination determination unit separately for the main body device and the auxiliary device. For example, in the urination detection devices of the first and second embodiments, the urination determination units 5, 5A and the power supply unit such as a battery are arranged in the main body devices 2, 2A, but the urination determination units 5, 5A. All or part of the functions of the above may be provided in an auxiliary device capable of communicating with the main body devices 2 and 2A. In that case, a communication unit that can transmit data by wire or wirelessly such as Wi-Fi (registered trademark) is provided in the main unit 2 and 2A, and the temperature or humidity data from the temperature sensor or humidity sensor is collected. It is also possible to output to an auxiliary device in which a necessary application or program is installed, and have the auxiliary device perform determination of the urination detection units 56, 56A and display of the determination result. Further, it is also possible to cause the auxiliary device to perform a function other than the urination display means in the urination determination units 5 and 5A. The auxiliary device is, for example, a mobile terminal such as a smartphone, a personal computer of a desktop or a laptop, and the like. The battery included in the power supply unit is preferably a rechargeable battery (secondary battery) such as a lithium ion battery or a nickel hydrogen battery, but may be a non-rechargeable dry battery or a hydrogen battery.
The shapes of the main devices 2 and 2A can also be changed as appropriate. For example, the plan view shape may be a polygon such as an ellipse, a triangle, or a quadrangle, or a heart shape of playing cards, instead of a circular shape. Further, the main body devices 2 and 2A preferably have a flat shape having a height T smaller than the diameter when viewed in a plan view or the diameter equivalent to a circle, but may have a non-flat shape. Further, the outer cover may be a cylindrical body or the like having a flat top surface instead of the dome shape.
排尿検出装置は、排尿判定部の機能を、本体装置と補助装置とに分けて備えていても良い。例えば、第1及び第2実施形態の排尿検出装置においては、本体装置2,2A内に、排尿判定部5,5A及び電池等の電力供給部が配されていたが、排尿判定部5,5Aの機能の全体又は一部を、本体装置2,2Aと通信可能な補助装置に設けてもよい。その場合、本体装置2,2A内に、補助装置と有線又はWi-Fi(登録商標)等の無線でデータの伝達可能な通信部を設け、温度センサー又は湿度センサーからの温度又は湿度のデータを、必要なアプリやプログラムがインストールされた補助装置に対して出力し、該補助装置に、排尿検出部56,56Aの判定及び判定結果の表示を行わせることもできる。また、排尿判定部5,5Aにおける排尿表示手段以外の機能を補助装置に行わせることもできる。補助装置は、例えばスマートフォン等の携帯端末や、デスクトップ又はラップトップのパソコン等である。電力供給部が備える電池は、リチウムイオン電池やニッケル水素電池等の充電池(2次電池)であることが好ましいが、充電不可能な乾電池や水素電池等であっても良い。
本体装置2,2Aの形状も適宜変更可能であり、例えば平面視形状は円形のものに代えて、楕円形、三角形、四角形等の多角形、トランプのハート形等とすることもできる。また本体装置2,2Aは、平面視したときの直径又は円相当径よりも高さTが小さい扁平な形状であることが好ましいが、非偏平な形状のものであってもよい。また外側カバーも、ドーム状に代えて、平坦な天面を有する筒状体等とすることもできる。 Although the present invention has been described above based on the preferred embodiment thereof, the present invention is not limited to the above-described embodiment.
The urination detection device may be provided with the function of the urination determination unit separately for the main body device and the auxiliary device. For example, in the urination detection devices of the first and second embodiments, the
The shapes of the
上述した本発明の実施形態に関し、さらに以下の排尿検出装置又は排尿検出方法を開示する。
<1>
温度センサーを備え、おむつの外面に取り付けられる本体装置を備え、
前記本体装置内又は該本体装置と通信可能な補助装置に、
前記おむつの外面の温度の変化を記録し、該温度の上昇速度が設定値を超えたときに排尿があったと判定する排尿判定部を備える、排尿検出装置。 The following urination detection device or urination detection method is further disclosed with respect to the above-described embodiment of the present invention.
<1>
Equipped with a temperature sensor, equipped with a main unit that can be attached to the outer surface of the diaper,
In the main body device or an auxiliary device that can communicate with the main body device,
A urination detection device including a urination determination unit that records a change in the temperature of the outer surface of the diaper and determines that urination has occurred when the rate of increase in the temperature exceeds a set value.
<1>
温度センサーを備え、おむつの外面に取り付けられる本体装置を備え、
前記本体装置内又は該本体装置と通信可能な補助装置に、
前記おむつの外面の温度の変化を記録し、該温度の上昇速度が設定値を超えたときに排尿があったと判定する排尿判定部を備える、排尿検出装置。 The following urination detection device or urination detection method is further disclosed with respect to the above-described embodiment of the present invention.
<1>
Equipped with a temperature sensor, equipped with a main unit that can be attached to the outer surface of the diaper,
In the main body device or an auxiliary device that can communicate with the main body device,
A urination detection device including a urination determination unit that records a change in the temperature of the outer surface of the diaper and determines that urination has occurred when the rate of increase in the temperature exceeds a set value.
<2>
前記排尿判定部は、複数回の排尿を検出可能になされている、前記<1>に記載の排尿検出装置。
<3>
前記排尿判定部は、前記温度の上昇速度が0.5℃/1分以上の場合に、排尿があったと判定する、前記<1>又は<2>に記載の排尿検出装置。
<4>
温度データの取得間隔が2分以下であり、前の取得時の温度との差分から前記温度の上昇速度を算出する、前記<1>~<3>のいずれか1に記載の排尿検出装置。
<5>
前記本体装置が湿度センサーを備える、前記<1>~<4>のいずれか1に記載の排尿検出装置。
<6>
前記温度センサーが、前記本体装置を、その高さを2等分して上半部と下半部としたときの下半部に配置されている、前記<1>~<5>のいずれか1に記載の排尿検出装置。 <2>
The urination detection device according to <1>, wherein the urination determination unit is capable of detecting a plurality of urinations.
<3>
The urination detection device according to <1> or <2>, wherein the urination determination unit determines that urination has occurred when the temperature rise rate is 0.5 ° C./1 minute or more.
<4>
The urination detection device according to any one of <1> to <3>, wherein the temperature data acquisition interval is 2 minutes or less, and the temperature rise rate is calculated from the difference from the temperature at the time of the previous acquisition.
<5>
The urination detection device according to any one of <1> to <4>, wherein the main body device includes a humidity sensor.
<6>
Any one of the above <1> to <5>, wherein the temperature sensor is arranged in the lower half portion when the height of the main body device is divided into two equal parts into an upper half portion and a lower half portion. The urination detection device according to 1.
前記排尿判定部は、複数回の排尿を検出可能になされている、前記<1>に記載の排尿検出装置。
<3>
前記排尿判定部は、前記温度の上昇速度が0.5℃/1分以上の場合に、排尿があったと判定する、前記<1>又は<2>に記載の排尿検出装置。
<4>
温度データの取得間隔が2分以下であり、前の取得時の温度との差分から前記温度の上昇速度を算出する、前記<1>~<3>のいずれか1に記載の排尿検出装置。
<5>
前記本体装置が湿度センサーを備える、前記<1>~<4>のいずれか1に記載の排尿検出装置。
<6>
前記温度センサーが、前記本体装置を、その高さを2等分して上半部と下半部としたときの下半部に配置されている、前記<1>~<5>のいずれか1に記載の排尿検出装置。 <2>
The urination detection device according to <1>, wherein the urination determination unit is capable of detecting a plurality of urinations.
<3>
The urination detection device according to <1> or <2>, wherein the urination determination unit determines that urination has occurred when the temperature rise rate is 0.5 ° C./1 minute or more.
<4>
The urination detection device according to any one of <1> to <3>, wherein the temperature data acquisition interval is 2 minutes or less, and the temperature rise rate is calculated from the difference from the temperature at the time of the previous acquisition.
<5>
The urination detection device according to any one of <1> to <4>, wherein the main body device includes a humidity sensor.
<6>
Any one of the above <1> to <5>, wherein the temperature sensor is arranged in the lower half portion when the height of the main body device is divided into two equal parts into an upper half portion and a lower half portion. The urination detection device according to 1.
<7>
前記本体装置は、おむつの外面と接触させる側に内側壁体、おむつの外面と接触させる側とは反対側に外側カバーを有し、前記外側カバーは、前記内側壁体の少なくとも一部よりも熱伝導率が低い、前記<1>~<6>のいずれか1に記載の排尿検出装置。
<8>
前記本体装置は、おむつの外面と接触させる側に内側壁体、おむつの外面と接触させる側とは反対側に外側カバーを有し、前記内側壁体及び前記外側カバーの一方又は双方に通気孔が形成されている、前記<1>~<7>のいずれか1に記載の排尿検出装置。
<9>
前記本体装置内に、サンプリング時間発生部、データサンプリング部、温度データ保持メモリ、温度立ち上がり速度検出部、排尿検出部及び電力供給部を含む、前記<1>~<8>のいずれか1に記載の排尿検出装置。
<10>
前記本体装置内に、サンプリング時間発生部、データサンプリング部、温度データ保持メモリ、外部と無線通信可能な装置及び電力供給部を含む、前記<1>~<8>のいずれか1に記載の排尿検出装置。
<11>
前記温度の上昇速度を求めるために使用する温度データの取得間隔が、好ましくは1秒以上2分以下、より好ましくは1秒以上1分以下である、前記<1>~<10>のいずれか1に記載の排尿検出装置。 <7>
The main body device has an inner side wall body on the side in contact with the outer surface of the diaper and an outer cover on the side opposite to the side in contact with the outer surface of the diaper, and the outer cover is more than at least a part of the inner side wall body. The urination detection device according to any one of <1> to <6>, which has a low thermal conductivity.
<8>
The main body device has an inner side wall body on the side in contact with the outer surface of the diaper and an outer cover on the side opposite to the side in contact with the outer surface of the diaper, and vent holes are provided in one or both of the inner side wall body and the outer cover. The urination detection device according to any one of <1> to <7>, wherein the urination detection device is formed.
<9>
Theabove item 1 according to any one of <1> to <8>, which includes a sampling time generation unit, a data sampling unit, a temperature data holding memory, a temperature rise speed detection unit, a urination detection unit, and a power supply unit in the main body apparatus. Urination detector.
<10>
The urination according to any one of <1> to <8>, which includes a sampling time generation unit, a data sampling unit, a temperature data holding memory, a device capable of wireless communication with the outside, and a power supply unit in the main body device. Detection device.
<11>
Any one of <1> to <10>, wherein the temperature data acquisition interval used for obtaining the temperature rise rate is preferably 1 second or more and 2 minutes or less, more preferably 1 second or more and 1 minute or less. The urination detection device according to 1.
前記本体装置は、おむつの外面と接触させる側に内側壁体、おむつの外面と接触させる側とは反対側に外側カバーを有し、前記外側カバーは、前記内側壁体の少なくとも一部よりも熱伝導率が低い、前記<1>~<6>のいずれか1に記載の排尿検出装置。
<8>
前記本体装置は、おむつの外面と接触させる側に内側壁体、おむつの外面と接触させる側とは反対側に外側カバーを有し、前記内側壁体及び前記外側カバーの一方又は双方に通気孔が形成されている、前記<1>~<7>のいずれか1に記載の排尿検出装置。
<9>
前記本体装置内に、サンプリング時間発生部、データサンプリング部、温度データ保持メモリ、温度立ち上がり速度検出部、排尿検出部及び電力供給部を含む、前記<1>~<8>のいずれか1に記載の排尿検出装置。
<10>
前記本体装置内に、サンプリング時間発生部、データサンプリング部、温度データ保持メモリ、外部と無線通信可能な装置及び電力供給部を含む、前記<1>~<8>のいずれか1に記載の排尿検出装置。
<11>
前記温度の上昇速度を求めるために使用する温度データの取得間隔が、好ましくは1秒以上2分以下、より好ましくは1秒以上1分以下である、前記<1>~<10>のいずれか1に記載の排尿検出装置。 <7>
The main body device has an inner side wall body on the side in contact with the outer surface of the diaper and an outer cover on the side opposite to the side in contact with the outer surface of the diaper, and the outer cover is more than at least a part of the inner side wall body. The urination detection device according to any one of <1> to <6>, which has a low thermal conductivity.
<8>
The main body device has an inner side wall body on the side in contact with the outer surface of the diaper and an outer cover on the side opposite to the side in contact with the outer surface of the diaper, and vent holes are provided in one or both of the inner side wall body and the outer cover. The urination detection device according to any one of <1> to <7>, wherein the urination detection device is formed.
<9>
The
<10>
The urination according to any one of <1> to <8>, which includes a sampling time generation unit, a data sampling unit, a temperature data holding memory, a device capable of wireless communication with the outside, and a power supply unit in the main body device. Detection device.
<11>
Any one of <1> to <10>, wherein the temperature data acquisition interval used for obtaining the temperature rise rate is preferably 1 second or more and 2 minutes or less, more preferably 1 second or more and 1 minute or less. The urination detection device according to 1.
<12>
前記本体装置は、前記おむつの外面と接触させる側とは反対側に、前記温度センサーを覆う外側カバーを有し、該外側カバーと前記温度センサーとの間に空間を有する、前記<1>~<11>のいずれか1に記載の排尿検出装置。
<13>
前記本体装置は、前記温度センサーの、おむつの外面と接触させる側とは反対側を覆う外側カバーを有し、前記外側カバーは、断熱性の素材で形成されている、前記<1>~<12>のいずれか1に記載の排尿検出装置。
<14>
前記本体装置は、前記温度センサーの、おむつの外面と接触させる側とは反対側を覆う外側カバーを有し、前記外側カバーは、肉厚が1mm以上、好ましくは1mm以上5mm以下のプラスチック製である、前記<1>~<13>のいずれか1に記載の排尿検出装置。
<15>
前記本体装置は、前記温度センサーの、おむつの外面と接触させる側とは反対側を覆う外側カバーを有し、前記外側カバーは、プラスチック又は金属製の基材の内面若しくは外面又は内外両面に、断熱層を備えている、前記<1>~<14>のいずれか1に記載の排尿検出装置。
<16>
前記本体装置は、前記おむつの外面と対向させる面に、該外面の温度を前記温度センサーに伝達する温度伝達部材を備える、前記<1>~<15>のいずれか1に記載の排尿検出装置。
<17>
前記温度伝達部材は、前記おむつの外面と対向させる面における、前記温度センサーと重なる部分である温度検知部に、少なくとも一部が配されている、前記<16>に記載の排尿検出装置。 <12>
The main body device has an outer cover covering the temperature sensor on a side opposite to the side in contact with the outer surface of the diaper, and has a space between the outer cover and the temperature sensor. The urination detection device according to any one of <11>.
<13>
The main body device has an outer cover that covers the side of the temperature sensor opposite to the side that comes into contact with the outer surface of the diaper, and the outer cover is made of a heat insulating material. 12> The urination detection device according to any one of.
<14>
The main body device has an outer cover that covers the side of the temperature sensor opposite to the side that comes into contact with the outer surface of the diaper, and the outer cover is made of plastic having a wall thickness of 1 mm or more, preferably 1 mm or more and 5 mm or less. The urination detection device according to any one of <1> to <13>.
<15>
The main body device has an outer cover that covers the side of the temperature sensor opposite to the side that comes into contact with the outer surface of the diaper, and the outer cover is formed on the inner surface, the outer surface, or both inner and outer surfaces of a plastic or metal base material. The urination detection device according to any one of <1> to <14>, which comprises a heat insulating layer.
<16>
The urination detection device according to any one of <1> to <15>, wherein the main body device includes a temperature transmission member for transmitting the temperature of the outer surface to the temperature sensor on a surface facing the outer surface of the diaper. ..
<17>
The urination detection device according to <16>, wherein at least a part of the temperature transmission member is arranged in a temperature detection unit which is a portion of the surface facing the outer surface of the diaper and which overlaps with the temperature sensor.
前記本体装置は、前記おむつの外面と接触させる側とは反対側に、前記温度センサーを覆う外側カバーを有し、該外側カバーと前記温度センサーとの間に空間を有する、前記<1>~<11>のいずれか1に記載の排尿検出装置。
<13>
前記本体装置は、前記温度センサーの、おむつの外面と接触させる側とは反対側を覆う外側カバーを有し、前記外側カバーは、断熱性の素材で形成されている、前記<1>~<12>のいずれか1に記載の排尿検出装置。
<14>
前記本体装置は、前記温度センサーの、おむつの外面と接触させる側とは反対側を覆う外側カバーを有し、前記外側カバーは、肉厚が1mm以上、好ましくは1mm以上5mm以下のプラスチック製である、前記<1>~<13>のいずれか1に記載の排尿検出装置。
<15>
前記本体装置は、前記温度センサーの、おむつの外面と接触させる側とは反対側を覆う外側カバーを有し、前記外側カバーは、プラスチック又は金属製の基材の内面若しくは外面又は内外両面に、断熱層を備えている、前記<1>~<14>のいずれか1に記載の排尿検出装置。
<16>
前記本体装置は、前記おむつの外面と対向させる面に、該外面の温度を前記温度センサーに伝達する温度伝達部材を備える、前記<1>~<15>のいずれか1に記載の排尿検出装置。
<17>
前記温度伝達部材は、前記おむつの外面と対向させる面における、前記温度センサーと重なる部分である温度検知部に、少なくとも一部が配されている、前記<16>に記載の排尿検出装置。 <12>
The main body device has an outer cover covering the temperature sensor on a side opposite to the side in contact with the outer surface of the diaper, and has a space between the outer cover and the temperature sensor. The urination detection device according to any one of <11>.
<13>
The main body device has an outer cover that covers the side of the temperature sensor opposite to the side that comes into contact with the outer surface of the diaper, and the outer cover is made of a heat insulating material. 12> The urination detection device according to any one of.
<14>
The main body device has an outer cover that covers the side of the temperature sensor opposite to the side that comes into contact with the outer surface of the diaper, and the outer cover is made of plastic having a wall thickness of 1 mm or more, preferably 1 mm or more and 5 mm or less. The urination detection device according to any one of <1> to <13>.
<15>
The main body device has an outer cover that covers the side of the temperature sensor opposite to the side that comes into contact with the outer surface of the diaper, and the outer cover is formed on the inner surface, the outer surface, or both inner and outer surfaces of a plastic or metal base material. The urination detection device according to any one of <1> to <14>, which comprises a heat insulating layer.
<16>
The urination detection device according to any one of <1> to <15>, wherein the main body device includes a temperature transmission member for transmitting the temperature of the outer surface to the temperature sensor on a surface facing the outer surface of the diaper. ..
<17>
The urination detection device according to <16>, wherein at least a part of the temperature transmission member is arranged in a temperature detection unit which is a portion of the surface facing the outer surface of the diaper and which overlaps with the temperature sensor.
<18>
前記本体装置は、前記おむつの外面と対向させる面に、該おむつの外面に止着させるための止着材を備えている、前記<1>~<17>のいずれか1に記載の排尿検出装置。
<19>
前記本体装置は、おむつの外面と接触させる側に内側壁体、おむつの外面と接触させる側とは反対側に外側カバーを有し、前記外側カバーは、前記内側壁体の全体又は一部と形成材料の素材が異なる、前記<1>~<18>のいずれか1に記載の排尿検出装置。
<20>
前記外側カバーの熱伝導率が20W/m・K以下であり、該外側カバーよりも熱伝導率が高い前記内側壁体の一部の熱伝導率が100W/m・K以上である、前記<7>に記載の排尿検出装置。
<21>
前記おむつは、吸収体及び該吸収体の前記外面側に配された透湿性の防漏シートを備えており、
前記本体装置は、透湿性の前記防漏シートと重なる部位に取り付けられる、前記<1>~<20>のいずれか1に記載の排尿検出装置。
<22>
おむつの排尿部位におけるおむつの外面の表面の温度を計測し、該温度の上昇速度が設定値を超えたときに排尿があったと判定する排尿検出方法。
<23>
前記<1>~<21>のいずれか1に記載の排尿検出装置により、前記おむつの外面の表面の温度の計測及び前記排尿があったとの判定を行う、前記<22>に記載の排尿検出方法。 <18>
The urination detection according to any one of <1> to <17>, wherein the main body device includes a fastening material for fastening to the outer surface of the diaper on a surface facing the outer surface of the diaper. Device.
<19>
The main body device has an inner side wall body on the side in contact with the outer surface of the diaper and an outer cover on the side opposite to the side in contact with the outer surface of the diaper, and the outer cover covers the whole or a part of the inner side wall body. The urination detection device according to any one of <1> to <18>, wherein the material of the forming material is different.
<20>
The thermal conductivity of the outer cover is 20 W / m · K or less, and the thermal conductivity of a part of the inner wall surface having a higher thermal conductivity than the outer cover is 100 W / m · K or more. 7> The urination detection device.
<21>
The diaper includes an absorber and a moisture-permeable leak-proof sheet arranged on the outer surface side of the absorber.
The urination detection device according to any one of <1> to <20>, wherein the main body device is attached to a portion overlapping the moisture-permeable leak-proof sheet.
<22>
A method for detecting urination in which the temperature of the outer surface of the diaper at the urination site of the diaper is measured and it is determined that urination has occurred when the temperature rise rate exceeds a set value.
<23>
The urination detection according to <22>, wherein the urination detection device according to any one of <1> to <21> measures the temperature of the outer surface of the diaper and determines that the diaper has been urinated. Method.
前記本体装置は、前記おむつの外面と対向させる面に、該おむつの外面に止着させるための止着材を備えている、前記<1>~<17>のいずれか1に記載の排尿検出装置。
<19>
前記本体装置は、おむつの外面と接触させる側に内側壁体、おむつの外面と接触させる側とは反対側に外側カバーを有し、前記外側カバーは、前記内側壁体の全体又は一部と形成材料の素材が異なる、前記<1>~<18>のいずれか1に記載の排尿検出装置。
<20>
前記外側カバーの熱伝導率が20W/m・K以下であり、該外側カバーよりも熱伝導率が高い前記内側壁体の一部の熱伝導率が100W/m・K以上である、前記<7>に記載の排尿検出装置。
<21>
前記おむつは、吸収体及び該吸収体の前記外面側に配された透湿性の防漏シートを備えており、
前記本体装置は、透湿性の前記防漏シートと重なる部位に取り付けられる、前記<1>~<20>のいずれか1に記載の排尿検出装置。
<22>
おむつの排尿部位におけるおむつの外面の表面の温度を計測し、該温度の上昇速度が設定値を超えたときに排尿があったと判定する排尿検出方法。
<23>
前記<1>~<21>のいずれか1に記載の排尿検出装置により、前記おむつの外面の表面の温度の計測及び前記排尿があったとの判定を行う、前記<22>に記載の排尿検出方法。 <18>
The urination detection according to any one of <1> to <17>, wherein the main body device includes a fastening material for fastening to the outer surface of the diaper on a surface facing the outer surface of the diaper. Device.
<19>
The main body device has an inner side wall body on the side in contact with the outer surface of the diaper and an outer cover on the side opposite to the side in contact with the outer surface of the diaper, and the outer cover covers the whole or a part of the inner side wall body. The urination detection device according to any one of <1> to <18>, wherein the material of the forming material is different.
<20>
The thermal conductivity of the outer cover is 20 W / m · K or less, and the thermal conductivity of a part of the inner wall surface having a higher thermal conductivity than the outer cover is 100 W / m · K or more. 7> The urination detection device.
<21>
The diaper includes an absorber and a moisture-permeable leak-proof sheet arranged on the outer surface side of the absorber.
The urination detection device according to any one of <1> to <20>, wherein the main body device is attached to a portion overlapping the moisture-permeable leak-proof sheet.
<22>
A method for detecting urination in which the temperature of the outer surface of the diaper at the urination site of the diaper is measured and it is determined that urination has occurred when the temperature rise rate exceeds a set value.
<23>
The urination detection according to <22>, wherein the urination detection device according to any one of <1> to <21> measures the temperature of the outer surface of the diaper and determines that the diaper has been urinated. Method.
本発明の排尿検出装置及び排尿検出方法によれば、排尿時に早いタイミングで排尿を検出可能であり、誤検出が少なく、2回目以降の排尿の検出も可能である。
According to the urination detection device and the urination detection method of the present invention, urination can be detected at an early timing at the time of urination, there are few false detections, and the second and subsequent urination can be detected.
According to the urination detection device and the urination detection method of the present invention, urination can be detected at an early timing at the time of urination, there are few false detections, and the second and subsequent urination can be detected.
Claims (23)
- 温度センサーを備え、おむつの外面に取り付けられる本体装置を備え、
前記本体装置内又は該本体装置と通信可能な補助装置に、
前記おむつの外面の温度の変化を記録し、該温度の上昇速度が設定値を超えたときに排尿があったと判定する排尿判定部を備える、排尿検出装置。 Equipped with a temperature sensor, equipped with a main unit that can be attached to the outer surface of the diaper,
In the main body device or an auxiliary device that can communicate with the main body device,
A urination detection device including a urination determination unit that records a change in the temperature of the outer surface of the diaper and determines that urination has occurred when the rate of increase in the temperature exceeds a set value. - 前記排尿判定部は、複数回の排尿を検出可能になされている、請求項1に記載の排尿検出装置。 The urination detection device according to claim 1, wherein the urination determination unit is capable of detecting a plurality of urinations.
- 前記排尿判定部は、前記温度の上昇速度が0.5℃/1分以上の場合に、排尿があったと判定する、請求項1又は2に記載の排尿検出装置。 The urination detection device according to claim 1 or 2, wherein the urination determination unit determines that urination has occurred when the temperature rise rate is 0.5 ° C./1 minute or more.
- 温度データの取得間隔が2分以下であり、前の取得時の温度との差分から前記温度の上昇速度を算出する、請求項1~3のいずれか1項に記載の排尿検出装置。 The urination detection device according to any one of claims 1 to 3, wherein the temperature data acquisition interval is 2 minutes or less, and the temperature rise rate is calculated from the difference from the temperature at the time of the previous acquisition.
- 前記本体装置が湿度センサーを備える、請求項1~4のいずれか1項に記載の排尿検出装置。 The urination detection device according to any one of claims 1 to 4, wherein the main body device includes a humidity sensor.
- 前記温度センサーが、前記本体装置を、その高さを2等分して上半部と下半部としたときの下半部に配置されている、請求項1~5のいずれか1項に記載の排尿検出装置。 The temperature sensor is arranged in any one of claims 1 to 5 in which the main body device is arranged in the lower half portion when the height thereof is divided into two equal parts into an upper half portion and a lower half portion. The described urination detector.
- 前記本体装置は、おむつの外面と接触させる側に内側壁体、おむつの外面と接触させる側とは反対側に外側カバーを有し、前記外側カバーは、前記内側壁体の少なくとも一部よりも熱伝導率が低い、請求項1~6のいずれか1項に記載の排尿検出装置。 The main body device has an inner side wall body on the side in contact with the outer surface of the diaper and an outer cover on the side opposite to the side in contact with the outer surface of the diaper, and the outer cover is more than at least a part of the inner side wall body. The urination detection device according to any one of claims 1 to 6, which has a low thermal conductivity.
- 前記本体装置は、おむつの外面と接触させる側に内側壁体、おむつの外面と接触させる側とは反対側に外側カバーを有し、前記内側壁体及び前記外側カバーの一方又は双方に通気孔が形成されている、請求項1~7のいずれか1項に記載の排尿検出装置。 The main body device has an inner side wall body on the side in contact with the outer surface of the diaper and an outer cover on the side opposite to the side in contact with the outer surface of the diaper, and vent holes are provided in one or both of the inner side wall body and the outer cover. The urination detection device according to any one of claims 1 to 7, wherein the urination detection device is formed.
- 前記本体装置内に、サンプリング時間発生部、データサンプリング部、温度データ保持メモリ、温度立ち上がり速度検出部、排尿検出部及び電力供給部を含む、請求項1~8のいずれか1項に記載の排尿検出装置。 The urination according to any one of claims 1 to 8, wherein the main body apparatus includes a sampling time generation unit, a data sampling unit, a temperature data holding memory, a temperature rise speed detection unit, a urination detection unit, and a power supply unit. Detection device.
- 前記本体装置内に、サンプリング時間発生部、データサンプリング部、温度データ保持メモリ、外部と無線通信可能な装置及び電力供給部を含む、請求項1~8のいずれか1項に記載の排尿検出装置。 The urination detection device according to any one of claims 1 to 8, wherein the main body device includes a sampling time generation unit, a data sampling unit, a temperature data holding memory, a device capable of wireless communication with the outside, and a power supply unit. ..
- 前記温度の上昇速度を求めるために使用する温度データの取得間隔が、1秒以上2分以下である、請求項1~10のいずれか1項に記載の排尿検出装置。 The urination detection device according to any one of claims 1 to 10, wherein the temperature data acquisition interval used for obtaining the temperature rise rate is 1 second or more and 2 minutes or less.
- 前記本体装置は、前記おむつの外面と接触させる側とは反対側に、前記温度センサーを覆う外側カバーを有し、該外側カバーと前記温度センサーとの間に空間を有する、請求項1~11のいずれか1項に記載の排尿検出装置。 The main body device has an outer cover covering the temperature sensor on a side opposite to the side in contact with the outer surface of the diaper, and has a space between the outer cover and the temperature sensor, claims 1 to 11. The urination detection device according to any one of the above items.
- 前記本体装置は、前記温度センサーの、おむつの外面と接触させる側とは反対側を覆う外側カバーを有し、前記外側カバーは、断熱性の素材で形成されている、請求項1~12のいずれか1項に記載の排尿検出装置。 13. The urination detection device according to any one of the following items.
- 前記本体装置は、前記温度センサーの、おむつの外面と接触させる側とは反対側を覆う外側カバーを有し、前記外側カバーは、肉厚が1mm以上のプラスチック製である、請求項1~13のいずれか1項に記載の排尿検出装置。 The main body device has an outer cover that covers the side of the temperature sensor opposite to the side that comes into contact with the outer surface of the diaper, and the outer cover is made of plastic having a wall thickness of 1 mm or more. The urination detection device according to any one of the above items.
- 前記本体装置は、前記温度センサーの、おむつの外面と接触させる側とは反対側を覆う外側カバーを有し、前記外側カバーは、プラスチック又は金属製の基材の内面若しくは外面又は内外両面に、断熱層を備えている、請求項1~14のいずれか1項に記載の排尿検出装置。 The main body device has an outer cover that covers the side of the temperature sensor opposite to the side that comes into contact with the outer surface of the diaper, and the outer cover is formed on the inner surface, the outer surface, or both inner and outer surfaces of a plastic or metal base material. The urination detection device according to any one of claims 1 to 14, further comprising a heat insulating layer.
- 前記本体装置は、前記おむつの外面と対向させる面に、該外面の温度を前記温度センサーに伝達する温度伝達部材を備える、請求項1~15のいずれか1項に記載の排尿検出装置。 The urination detection device according to any one of claims 1 to 15, wherein the main body device includes a temperature transmission member for transmitting the temperature of the outer surface to the temperature sensor on a surface facing the outer surface of the diaper.
- 前記温度伝達部材は、前記おむつの外面と対向させる面における、前記温度センサーと重なる部分である温度検知部に、少なくとも一部が配されている、請求項16に記載の排尿検出装置。 The urination detection device according to claim 16, wherein at least a part of the temperature transmission member is arranged in a temperature detection unit which is a portion of the surface facing the outer surface of the diaper and which overlaps with the temperature sensor.
- 前記本体装置は、前記おむつの外面と対向させる面に、該おむつの外面に止着させるための止着材を備えている、請求項1~17のいずれか1項に記載の排尿検出装置。 The urination detection device according to any one of claims 1 to 17, wherein the main body device includes a fastening material for fastening to the outer surface of the diaper on a surface facing the outer surface of the diaper.
- 前記本体装置は、おむつの外面と接触させる側に内側壁体、おむつの外面と接触させる側とは反対側に外側カバーを有し、前記外側カバーは、前記内側壁体の全体又は一部と形成材料の素材が異なる、請求項1~18のいずれか1項に記載の排尿検出装置。 The main body device has an inner side wall body on the side in contact with the outer surface of the diaper and an outer cover on the side opposite to the side in contact with the outer surface of the diaper, and the outer cover covers the whole or a part of the inner side wall body. The urination detection device according to any one of claims 1 to 18, wherein the material of the forming material is different.
- 前記外側カバーの熱伝導率が20W/m・K以下であり、該外側カバーよりも熱伝導率が高い前記内側壁体の一部の熱伝導率が100W/m・K以上である、請求項7に記載の排尿検出装置。 The claim that the thermal conductivity of the outer cover is 20 W / m · K or less, and the thermal conductivity of a part of the inner side wall body having a higher thermal conductivity than the outer cover is 100 W / m · K or more. 7. The urination detection device according to 7.
- 前記おむつは、吸収体及び該吸収体の前記外面側に配された透湿性の防漏シートを備えており、
前記本体装置は、透湿性の前記防漏シートと重なる部位に取り付けられる、請求項1~20のいずれか1項に記載の排尿検出装置。 The diaper includes an absorber and a moisture-permeable leak-proof sheet arranged on the outer surface side of the absorber.
The urination detection device according to any one of claims 1 to 20, wherein the main body device is attached to a portion overlapping the moisture-permeable leak-proof sheet. - おむつの排尿部位におけるおむつの外面の表面の温度を計測し、該温度の上昇速度が設定値を超えたときに排尿があったと判定する排尿検出方法。 A urination detection method that measures the temperature of the outer surface of the diaper at the urination site of the diaper and determines that urination has occurred when the temperature rise rate exceeds the set value.
- 請求項1~21のいずれか1項に記載の排尿検出装置により、前記おむつの外面の表面の温度の計測及び前記排尿があったとの判定を行う、請求項22に記載の排尿検出方法。
The urination detection method according to claim 22, wherein the urination detection device according to any one of claims 1 to 21 measures the temperature of the surface of the outer surface of the diaper and determines that the diaper has been urinated.
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Publication number | Priority date | Publication date | Assignee | Title |
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KR200414605Y1 (en) * | 2006-01-20 | 2006-04-21 | 김주억 | diaper using evacuation alarm |
US20140266736A1 (en) * | 2010-09-08 | 2014-09-18 | EM Medical LLC | Multifunctional medical monitoring system |
JP2019141278A (en) * | 2018-02-20 | 2019-08-29 | 王子ホールディングス株式会社 | Excretion detection device, absorbent article, and notification system |
US20200281777A1 (en) * | 2017-09-19 | 2020-09-10 | Care Changer Inc. | Incontinence care system and method therefor |
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2020
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Publication number | Priority date | Publication date | Assignee | Title |
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KR200414605Y1 (en) * | 2006-01-20 | 2006-04-21 | 김주억 | diaper using evacuation alarm |
US20140266736A1 (en) * | 2010-09-08 | 2014-09-18 | EM Medical LLC | Multifunctional medical monitoring system |
US20200281777A1 (en) * | 2017-09-19 | 2020-09-10 | Care Changer Inc. | Incontinence care system and method therefor |
JP2019141278A (en) * | 2018-02-20 | 2019-08-29 | 王子ホールディングス株式会社 | Excretion detection device, absorbent article, and notification system |
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