JP2002143199A - Excretion detection device - Google Patents
Excretion detection deviceInfo
- Publication number
- JP2002143199A JP2002143199A JP2000343654A JP2000343654A JP2002143199A JP 2002143199 A JP2002143199 A JP 2002143199A JP 2000343654 A JP2000343654 A JP 2000343654A JP 2000343654 A JP2000343654 A JP 2000343654A JP 2002143199 A JP2002143199 A JP 2002143199A
- Authority
- JP
- Japan
- Prior art keywords
- urination
- defecation
- detecting
- detection
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
(57)【要約】
【課題】 排尿か排便かを精度良く識別して検知し、介
護対象者が不快になることがなく特に大便の放置による
肌荒れを防止できる排泄検知装置を提供する。
【解決手段】 吸収性物品の外側表面に取り付けられ、
吸収性物品の温度を検知する温度センサ１ａと、温度セ
ンサ１ａからの温度検知信号に基づいて吸収性物品の温
度上昇を検知する温度上昇検知手段３１と、吸収性物品
の外側表面に取り付けられ、排泄物から発生するガスを
検知するガスセンサ１ｂと、吸収性物品の温度上昇が検
知された場合にガスセンサ１ｂからのガス検知信号に基
づいてガス出力の変化を検知するガス検知出力変化検知
手段３２と、ガス検知出力変化検知手段３２からのガス
出力の変化が増加か減少かを判定し、増加又は減少に基
づいて排尿か排便かを判定する排尿排便判定手段３４と
を有している。
(57) [Problem] To provide an excretion detection device capable of accurately distinguishing and detecting whether urination or defecation and preventing a care recipient from becoming uncomfortable and preventing a rough skin due to leaving the stool in particular. SOLUTION: It is attached to an outer surface of an absorbent article,
A temperature sensor 1a for detecting the temperature of the absorbent article, a temperature rise detecting means 31 for detecting a temperature rise of the absorbent article based on a temperature detection signal from the temperature sensor 1a, and attached to an outer surface of the absorbent article; A gas sensor 1b for detecting gas generated from excrement, and a gas detection output change detecting means 32 for detecting a change in gas output based on a gas detection signal from the gas sensor 1b when a temperature rise of the absorbent article is detected. And a urination / defecation judging means 34 for judging whether the change in the gas output from the gas detection output change detecting means 32 is increasing or decreasing, and judging whether to urinate or defecate based on the increase or decrease.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、おむつ、尿取りパ
ッド等の吸収性物品の外側表面（すなわち、排泄物に接
しない側）から吸収性物品内の排泄の有無を検知する排
泄検知装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an excretion detecting device for detecting the presence or absence of excretion in an absorbent article from the outer surface (ie, the side not in contact with excrement) of the absorbent article such as a diaper and a urine absorbing pad. .
【０００２】[0002]
【従来の技術】介護施設等では、寝たきりの尿失禁患者
（以下、介護対象者と略称する。）が入院しており、現
状では、例えば５０人の介護対象者のおむつを１日に６
〜８回の割合で予め定められた時刻に交換するというよ
うに介護者は介護対象者のおむつを定期的に交換してい
る。2. Description of the Related Art Bedridden incontinent patients (hereinafter referred to as care recipients) are hospitalized in nursing care facilities and the like.
Caregivers regularly change diapers of care recipients, such as changing the diapers at a predetermined time at a rate of up to eight times.
【０００３】しかしながら、介護対象者のおむつを予め
定められた時刻に交換しようとした際に、おむつに排尿
されておらず、おむつを交換する必要がない場合もあ
る。また、尿失禁後、適切におむつが交換されないと、
介護対象者にとっても不快、不衛生である。また、介護
される介護対象者も必要以上に交換チェックを受けるた
め、精神的にも負担となっていた。また、在宅介護世帯
でも、前述した介護施設における問題と同様な問題を抱
えていた。However, when the diaper of the care recipient is to be replaced at a predetermined time, the diaper may not be urinated, and the diaper may not need to be replaced. Also, after urinary incontinence, if diapers are not properly replaced,
It is uncomfortable and unsanitary for care recipients. In addition, since the care recipients who are cared receive an exchange check more than necessary, it is a mental burden. Also, home care households had the same problems as the above-mentioned problems in nursing homes.
【０００４】そこで、前述したような問題を解決したも
のとして、例えば、電子情報通信学会ＢＭＥ９３−１２
０（１９９４−０１第３９頁〜第４４頁）に記載された
尿失禁モニタ付きダイパが知られている。この尿失禁モ
ニタ付きダイパは、センサとして紙おむつにサーミスタ
を取り付け、サーミスタによりおむつの温度の経時変化
を検出し、この温度変化から患者の尿量を算出し、算出
された尿量に基づき介護者におむつの交換時期を知らせ
る装置である。In order to solve the above-mentioned problem, for example, the Institute of Electronics, Information and Communication Engineers, BME93-12.
No. 0 (1994-01, pp. 39-44) is known. This dipper with urinary incontinence monitor attaches a thermistor to a disposable diaper as a sensor, detects changes in the diaper temperature over time with the thermistor, calculates the amount of urine of the patient from this temperature change, and provides a caregiver with the calculated amount of urine. This is a device that informs you when to change diapers.
【０００５】また、排泄の有無を検知する排泄センサと
しては、主に排尿を検知するセンサが多く報告されてい
る。しかしながら、排尿は紙おむつにより吸収されるた
め、排泄による肌荒れの原因は、むしろ、排便の放置に
よるものであった。また、痴呆症等で便で遊ぶ不衛生な
行為をする人もおり、排尿を精度良く検知するととも
に、排便を精度良く検知する排泄検知装置が望まれてい
た。As excretion sensors for detecting the presence or absence of excretion, many sensors mainly for detecting urination have been reported. However, since urination is absorbed by the disposable diaper, the cause of rough skin due to excretion is rather due to leaving the defecation. In addition, some people perform unsanitary acts of playing with stool due to dementia or the like, and an excretion detection device that accurately detects urination and accurately detects stool has been desired.
【０００６】一方、従来のこの種の技術としては、例え
ば、特開平１０−１９２３２４号公報に記載された排せ
つ検出装置が知られている。この排せつ検出装置は、ガ
スセンサと、ガスセンサからのガスセンサ信号から排せ
つを検出するための手段と、ガスセンサ信号のピークの
幅から排尿と排便とを識別する手段とを設けたものであ
る。On the other hand, as a conventional technique of this type, for example, an excretion detecting device described in Japanese Patent Application Laid-Open No. 10-192324 is known. This excretion detecting device is provided with a gas sensor, means for detecting excretion from a gas sensor signal from the gas sensor, and means for distinguishing urination and defecation from the peak width of the gas sensor signal.
【０００７】また、特開２０００−１８５０６７号公報
に記載された排泄監視装置が知られている。この排泄監
視装置は、排泄物により導電体間の静電容量が変化する
一組の導電体と、おむつ装着者の挙動により抵抗値が変
化する抵抗体と、抵抗体の抵抗値変化と導電体間の静電
容量の変化とに基づいておむつへの排泄状態を検出し、
排泄の有無や排泄度合いを報知する報知手段とを備え
る。[0007] An excretion monitoring device described in JP-A-2000-185067 is also known. This excretion monitoring device is composed of a set of conductors in which the capacitance between the conductors changes due to excretion, a resistor whose resistance changes according to the behavior of the diaper wearer, a change in the resistance of the resistor and the conductor. Detecting the state of excretion into the diaper based on the change in capacitance between
Informing means for notifying the presence or absence of excretion and the degree of excretion.
【０００８】また、複数のセンサを用いたものとして、
例えば特開平９−２９０００１号公報に記載された排泄
検知装置が知られている。この排泄検知装置は、おむつ
内側の温度を検出する温度センサと、おむつ内側の湿度
を検出する湿度センサと、おむつ内側の匂いの程度を検
出する匂いセンサと、おむつが外れ状態にあるとの判定
を行うとともに、おむつ内側への排泄について判定を行
う判定手段とを有している。[0008] Further, as a device using a plurality of sensors,
For example, an excretion detection device described in JP-A-9-290001 is known. This excretion detection device includes a temperature sensor that detects the temperature inside the diaper, a humidity sensor that detects the humidity inside the diaper, an odor sensor that detects the degree of odor inside the diaper, and a determination that the diaper is in a detached state. And a determination means for determining the excretion into the diaper.
【０００９】[0009]
【発明が解決しようとする課題】しかしながら、特開平
１０−１９２３２４号公報に記載された排せつ検出装置
にあっては、チュウブをおむつに挿入するものであり、
介護対象者が不快になる等の負担がかかっていた。However, in the excretion detecting device described in Japanese Patent Application Laid-Open No. 10-192324, a tube is inserted into a diaper.
There was a burden on the care recipients, such as discomfort.
【００１０】また、特開２０００−１８５０６７号公報
に記載された排泄監視装置にあっては、一組の導電体
（静電容量式センサ）と抵抗体とを使用し、抵抗体の抵
抗変化で人の動きを検知し、静電容量式センサの誤動作
を防止するものであるため、排尿と排便とを精度良く識
別して検知できるものではなかった。In the excretion monitoring apparatus described in Japanese Patent Application Laid-Open No. 2000-185067, a set of a conductor (capacitive sensor) and a resistor are used, and the resistance of the resistor is changed. Since it is intended to detect human movement and prevent malfunction of the capacitance type sensor, it is not possible to accurately identify and detect urination and defecation.
【００１１】また、特開平９−２９０００１号公報に記
載された排泄検知装置にあっては、センサがおむつ内側
に取り付けられ、温度センサはおむつ外れの検知手段と
して使用され、温度センサと湿度センサと匂いセンサと
により排泄の判定を行っている。すなわち、センサー部
が汚れる等、排泄検知装置の使い勝手が悪く、おむつ内
に異物があるため、介護対象者は不快になる等の負担が
かかっていた。Also, in the excretion detecting device described in Japanese Patent Application Laid-Open No. 9-290001, a sensor is mounted inside a diaper, and a temperature sensor is used as a means for detecting diaper detachment. Excretion is determined by the odor sensor. That is, the excretion detection device is inconvenient to use, such as the sensor portion becoming dirty, and the foreign object is present in the diaper.
【００１２】本発明は、排尿か排便かを精度良く識別し
て検知し、介護対象者が不快になることがなく、特に大
便の放置による肌荒れを防止することができる排泄検知
装置を提供することを課題とする。An object of the present invention is to provide an excretion detecting device capable of accurately discriminating between urination and defecation and detecting the urine, without preventing the care recipient from becoming uncomfortable, and in particular, preventing rough skin due to leaving the stool. As an issue.
【００１３】[0013]
【課題を解決するための手段】前記課題を解決するため
に、本発明の排泄検知装置は、排泄物を吸収する吸収性
物品の外側表面に取り付けられ、前記吸収性物品の温
度、湿度、インピーダンスの少なくとも一つを検知する
第１の検知手段と、前記吸収性物品の外側表面に取り付
けられ、前記排泄物から発生するガスを検知する第２の
検知手段と、前記第１の検知手段からの検知信号と前記
第２の検知手段からの検知信号とに基づいて排尿か排便
かを判定する排尿排便判定手段とを有することを特徴と
する。In order to solve the above-mentioned problems, an excretion detecting device according to the present invention is mounted on an outer surface of an absorbent article for absorbing excrement, and the temperature, humidity and impedance of the absorbent article are measured. First detecting means for detecting at least one of the following: a second detecting means attached to the outer surface of the absorbent article, for detecting gas generated from the excrement; and It is characterized by having urination and defecation determining means for determining whether to urinate or defecate based on the detection signal and the detection signal from the second detecting means.
【００１４】[0014]
【発明の実施の形態】以下、本発明の排泄検知装置の実
施の形態を図面を参照して説明する。図１に示す第１の
実施の形態の排泄検知装置は、温度センサ（温度検知手
段）１ａ、ガスセンサ（ガス検知手段）１ｂ、色センサ
（色検知手段）１ｃ、排泄検知装置本体３を備え、吸収
性物品内の排泄の有無を検知したり、排尿か排便かの判
定結果を知らせる。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the excretion detecting device according to the present invention will be described below with reference to the drawings. The excretion detection device according to the first embodiment shown in FIG. 1 includes a temperature sensor (temperature detection means) 1a, a gas sensor (gas detection means) 1b, a color sensor (color detection means) 1c, and an excretion detection device main body 3, The presence or absence of excretion in the absorbent article is detected, and the result of determination of urination or defecation is notified.
【００１５】温度センサ１ａは、排泄物を吸収する吸収
性物品の外側表面に取り付けられ、吸収性物品の温度を
検知して温度検知信号を温度上昇検知手段３１に出力す
る。ガスセンサ１ｂは、吸収性物品の外側表面に取り付
けられ、排泄物から発生するガスを検知してガス検知信
号をガス検知出力変化検知手段３２に出力する。色セン
サ１ｃは、吸収性物品の外側表面で排便ポイントに対応
した位置に取り付けられ、排泄物の色を検知して色検知
信号を色判定手段３３に出力する。The temperature sensor 1a is attached to the outer surface of the absorbent article for absorbing excrement, detects the temperature of the absorbent article, and outputs a temperature detection signal to the temperature rise detecting means 31. The gas sensor 1b is attached to the outer surface of the absorbent article, detects gas generated from excrement, and outputs a gas detection signal to the gas detection output change detection means 32. The color sensor 1c is attached to a position corresponding to the defecation point on the outer surface of the absorbent article, detects the color of the excrement, and outputs a color detection signal to the color determination unit 33.
【００１６】吸収性物品は、老人や乳幼児の尿又は便等
の排泄物を吸収するおむつ、尿取りパッド等である。尿
取りパッドは、外側おむつの内側（排泄箇所）に挿入
し、２枚重ねとして使用するものであり、尿取りパッド
を交換することでコストメリットがあり、環境負荷が少
なくなる。The absorbent articles are diapers, urine absorbing pads, and the like that absorb excrement such as urine or stool of the elderly and infants. The urine absorbing pad is inserted into the inside (excretion site) of the outer diaper and is used as a two-layer stack. Replacing the urine absorbing pad has a cost advantage and reduces the environmental load.
【００１７】排泄検知装置本体３は、温度上昇検知手段
３１、ガス検知出力変化検知手段３２、色判定手段３
３、排尿排便判定手段３４、警報手段３６、表示手段３
７を有している。温度上昇検知手段３１、ガス検知出力
変化検知手段３２、色判定手段３３、排尿排便判定手段
３４、及び排尿回数検知手段３５は、例えばマイクロコ
ンピュータで構成されている。The excretion detecting device main body 3 includes a temperature rise detecting means 31, a gas detection output change detecting means 32, and a color judging means 3.
3. Urination / defecation determination means 34, alarm means 36, display means 3
7. The temperature rise detecting means 31, the gas detection output change detecting means 32, the color judging means 33, the urination / defecation judging means 34, and the urination frequency detecting means 35 are constituted by, for example, a microcomputer.
【００１８】温度上昇検知手段３１は、温度センサ１ａ
からの温度検知信号に基づいて吸収性物品の温度上昇を
検知して温度上昇検知信号をガス出力変化検知手段３２
に出力する。ガス検知出力変化検知手段３２は、温度上
昇検知手段３１からの温度上昇検知信号に基づく吸収性
物品の温度上昇が検知された場合に、ガスセンサ１ｂか
らのガス検知信号に基づいてガス出力の変化を検知して
ガス出力変化検知信号を排尿排便判定手段３４に出力す
る。The temperature rise detecting means 31 includes a temperature sensor 1a.
The temperature rise of the absorbent article is detected based on the temperature detection signal from
Output to The gas detection output change detection means 32 detects a change in gas output based on the gas detection signal from the gas sensor 1b when the temperature rise of the absorbent article based on the temperature rise detection signal from the temperature rise detection means 31 is detected. It detects and outputs a gas output change detection signal to the urination and defecation determining means 34.
【００１９】色判定手段３３は、色センサ１ｃからの色
検知信号に基づいてその色が排便の色（例えば茶色）か
どうかを判定し色判定信号を排尿排便判定手段３４に出
力する。The color judging means 33 judges whether the color is a defecation color (for example, brown) based on the color detection signal from the color sensor 1c, and outputs a color judging signal to the urination / defecation judging means 34.
【００２０】排尿排便判定手段３４は、ガス検知出力変
化検知手段３２からのガス出力変化検知信号に基づくガ
ス出力の変化が増加（正）か減少（負）かを判定し、そ
の変化が増加である場合には排便と判定し、その変化が
減少である場合には排尿と判定し、排尿排便判定結果情
報を出力する。The urination and defecation determining means 34 determines whether the change in gas output based on the gas output change detection signal from the gas detection output change detecting means 32 is increasing (positive) or decreasing (negative). In some cases, it is determined to be defecation, and when the change is decreased, it is determined to be urination, and urination and defecation determination result information is output.
【００２１】また、排尿排便判定手段３４は、排尿があ
ったと判定した場合に、色センサ１ｃを起動して、色判
定手段３３からの色判定信号に基づいて排尿後に排便が
あったかどうかを判定する。When it is determined that urination has occurred, the urination / defecation determining means 34 activates the color sensor 1c and determines whether or not there has been defecation after urination based on the color determination signal from the color determining means 33. .
【００２２】警報手段３６は、警報ブザーあるいはバイ
プレータあるいはランプ等からなり、排尿排便判定手段
３４からの排尿排便判定結果情報を警報により報知す
る。表示手段３７は、液晶表示器や７セグメント表示器
等であり、排尿排便判定手段３４からの排尿排便判定結
果情報を表示する。The warning means 36 comprises a warning buzzer, a vibrator, a lamp, or the like, and notifies the urination and defecation judgment result information from the urination and defecation judging means 34 by an alarm. The display means 37 is a liquid crystal display, a seven-segment display, or the like, and displays the urination / defecation determination result information from the urination / defecation determination means 34.
【００２３】次にこのように構成された第１の実施の形
態の排泄検知装置の動作を図２のフローチャート、図３
乃至図５の図面を参照して説明する。Next, the operation of the thus configured excretion detecting device according to the first embodiment will be described with reference to the flowchart of FIG.
This will be described with reference to the drawings of FIGS.
【００２４】まず、人のおむつの外側表面に温度センサ
１ａ、ガスセンサ１ｂ及び色センサ１ｃを取り付ける。
ここで、おむつ内に人の排尿があった場合には、この排
尿を温度センサ１ａとガスセンサ１ｂとで検知すると、
図３に示すような排尿検知時の温度センサ及びガスセン
サのセンサ出力（出力電圧）が得られる。図３からもわ
かるように、排尿検知時のガスセンサの出力は、時刻ｔ
１から徐々に極小値まで減少してゆき、その極小値から
単調に増加していく。また、排尿検知時の温度センサの
出力は、時刻ｔ１から徐々に上昇した後に一定値にな
る。First, a temperature sensor 1a, a gas sensor 1b, and a color sensor 1c are attached to the outer surface of a person's diaper.
Here, when there is urination of a person in the diaper, when this urination is detected by the temperature sensor 1a and the gas sensor 1b,
As shown in FIG. 3, sensor outputs (output voltages) of the temperature sensor and the gas sensor at the time of urination detection are obtained. As can be seen from FIG. 3, the output of the gas sensor at the time of urination detection is at time t.
It gradually decreases from 1 to the minimum value, and monotonically increases from the minimum value. The output of the temperature sensor when urinating detected, a constant value gradually after rising from the time t 1.
【００２５】一方、おむつ内に人の排便があった場合に
は、この排便を温度センサ１ａとガスセンサ１ｂとで検
知すると、図４に示すような排便検知時の温度センサ及
びガスセンサのセンサ出力（出力電圧）が得られる。図
４からもわかるように、排便検知時の温度センサ及びガ
スセンサのそれぞれの出力は、時刻ｔ３から徐々に上昇
した後に一定値になる。On the other hand, when there is a person's defecation in the diaper, when this defecation is detected by the temperature sensor 1a and the gas sensor 1b, the temperature sensor and gas sensor output (FIG. 4) at the time of defecation detection are used. Output voltage). As can be seen from Figure 4, each output of the temperature sensor and gas sensor defecation detected, a constant value gradually after rising from time t 3.
【００２６】以上のことから、温度センサ１ａは、排尿
及び排便ともに温度の上昇によりセンサ出力が増加傾向
にある。また、ガスセンサ１ｂは、排尿時にはセンサ出
力が一時的に減少し、排便時にはセンサ出力が増加する
傾向にある。このため、以上のガスセンサ１ｂ及び温度
センサ１ａのセンサ出力特性を利用して、図２に示すよ
うな手順で処理を行う。As described above, the output of the temperature sensor 1a tends to increase due to an increase in the temperature for both urination and defecation. Further, the sensor output of the gas sensor 1b tends to temporarily decrease during urination and increase during urination. For this reason, processing is performed according to the procedure shown in FIG. 2 using the sensor output characteristics of the gas sensor 1b and the temperature sensor 1a.
【００２７】まず、温度センサ１ａは、おむつの外側表
面の温度を検知し、その温度検知信号を温度上昇検知手
段３１に出力する。温度上昇検知手段３１は、温度セン
サ１ａからの温度検知信号に基づいて吸収性物品の温度
上昇があったか否かを判定し（ステップＳ１１）、温度
上昇があった場合には温度上昇検知信号をガス検知出力
変化検知手段３２に出力する。First, the temperature sensor 1a detects the temperature of the outer surface of the diaper, and outputs a temperature detection signal to the temperature rise detecting means 31. The temperature rise detecting means 31 determines whether or not the temperature of the absorbent article has risen based on the temperature detection signal from the temperature sensor 1a (step S11). It outputs to the detection output change detection means 32.
【００２８】次に、ガス検知出力変化検知手段３２は、
温度上昇検知手段３１からの温度上昇検知信号に基づく
吸収性物品の温度上昇が検知された場合に、ガスセンサ
１ｂからのガス検知信号に基づいてガス出力の変化があ
ったか否かを判定し（ステップＳ１３）、ガス出力の変
化があった場合にはガス出力変化検知信号を排尿排便判
定手段３４に出力する。Next, the gas detection output change detecting means 32
When the temperature rise of the absorbent article is detected based on the temperature rise detection signal from the temperature rise detection means 31, it is determined whether or not the gas output has changed based on the gas detection signal from the gas sensor 1b (step S13). If there is a change in the gas output, a gas output change detection signal is output to the urination and defecation determining means 34.
【００２９】さらに、排尿排便判定手段３４は、ガス検
知出力変化検知手段３２からのガス出力変化検知信号に
基づくガス出力の変化が増加（正）か減少（負）かを判
定し（ステップＳ１５）、その変化が増加である場合に
は排便と判定し（ステップＳ１７）、排便判定結果情報
を警報手段３６及び表示手段３７に出力する。Further, the urination / defecation determining means 34 determines whether the change in gas output based on the gas output change detection signal from the gas detection output change detecting means 32 is increased (positive) or decreased (negative) (step S15). If the change is an increase, it is determined that the bowel movement is a bowel movement (step S17), and the bowel movement determination result information is output to the warning unit 36 and the display unit 37.
【００３０】そして、警報手段３６は、排便判定結果情
報を警報により報知し、表示手段３７は、排便判定結果
情報を表示する（ステップＳ１８）。これにより、介護
者は介護対象者のおむつを取り替える（ステップＳ１
９）。Then, the alarm means 36 notifies the defecation judgment result information by alarm, and the display means 37 displays the defecation judgment result information (step S18). Thereby, the caregiver replaces the diaper of the care recipient (step S1).
9).
【００３１】一方、ステップＳ１５において、排尿排便
判定手段３４は、ガス出力の変化が減少である場合には
排尿と判定し（ステップＳ２１）、色センサ１ｃを起動
させる（ステップＳ２３）。On the other hand, in step S15, if the change in gas output is decreasing, the urination / defecation judging means 34 judges urination (step S21) and activates the color sensor 1c (step S23).
【００３２】すると、色センサ１ｃは、排泄物の色を検
知して色検知信号を色判定手段３３に出力し、色判定手
段３３は、色センサ１ｃからの色検知信号に基づく色が
茶色かどうかを判定する（ステップＳ２５）。Then, the color sensor 1c detects the color of the excrement and outputs a color detection signal to the color determination means 33. The color determination means 33 determines whether the color based on the color detection signal from the color sensor 1c is brown. It is determined whether or not it is (step S25).
【００３３】図５に排尿後の便の検知に使用する光セン
サのデータを示す。図５に示す例では、色センサが分光
測色計であり、この分光測色計により茶色を検知してい
る。図５では、横軸が光の波長を示し、縦軸が反射率を
示している。FIG. 5 shows data of an optical sensor used for detecting a stool after urination. In the example shown in FIG. 5, the color sensor is a spectral colorimeter, and brown is detected by the spectral colorimeter. In FIG. 5, the horizontal axis shows the wavelength of light, and the vertical axis shows the reflectance.
【００３４】おむつ＋黒（◆で表される部分）は、おむ
つのみに相当し、光の波長が６８０ｎｍでは反射率は約
８９％となっている。おむつ＋黒＋水（▲）は、尿のみ
に相当し、光の波長が６８０ｎｍでは反射率は約７２％
となっている。おむつ＋水＋茶（※点線）は、尿＋便に
相当し、光の波長が６８０ｎｍでは反射率は約７８％と
なっている。The diaper + black (portion indicated by ◆) corresponds to only the diaper, and has a reflectivity of about 89% at a light wavelength of 680 nm. Diaper + black + water (▲) is equivalent to urine only, and the reflectance is about 72% when the wavelength of light is 680 nm.
It has become. Diapers + water + tea (* dotted line) correspond to urine + stool, and the reflectance is about 78% when the wavelength of light is 680 nm.
【００３５】このため、色判定手段３３は、光の波長を
例えば６８０ｎｍとし、反射率が約７８％であるかどう
かを判定し、反射率が約７８％であれば、おむつ＋水＋
茶と判定し、色判定信号を出力する。For this reason, the color determining means 33 determines that the light wavelength is, for example, 680 nm and the reflectance is about 78%. If the reflectance is about 78%, the diaper + water +
The color is determined as brown and a color determination signal is output.
【００３６】そして、排尿排便判定手段３４は、色判定
手段３３からの色判定信号に基づき、排尿後に排便があ
ったと判定し（ステップＳ１７）、排便判定結果情報を
警報手段３６及び表示手段３７に出力する。その後、ス
テップＳ１８、ステップＳ１９の処理を行う。Then, based on the color judgment signal from the color judgment means 33, the urination / defecation judgment means 34 judges that there is defecation after urination (step S17), and outputs the defecation judgment result information to the alarm means 36 and the display means 37. Output. After that, the processing of steps S18 and S19 is performed.
【００３７】このように第１の実施の形態の排泄検知装
置によれば、温度上昇検知手段３１が温度センサ１ａか
らの温度検知信号に基づいて吸収性物品の温度上昇を検
知し、ガス検知出力変化検知手段３２は、吸収性物品の
温度上昇が検知された場合にガスセンサ１ｂからのガス
検知信号に基づいてガス出力の変化を検知し、排尿排便
判定手段３４は、ガス検知出力変化検知手段３２からの
ガス出力の変化が増加か減少かを判定し、増加又は減少
に基づいて排尿か排便かを判定するので、排尿か排便か
を精度良く識別して検知することができる。これによ
り、大便の放置による肌荒れを防止することができ、ま
た、大便で遊ぶ者の不衛生行為を防止することができ
る。As described above, according to the excretion detecting device of the first embodiment, the temperature rise detecting means 31 detects the temperature rise of the absorbent article based on the temperature detection signal from the temperature sensor 1a, and outputs the gas detection output. The change detecting means 32 detects a change in the gas output based on the gas detection signal from the gas sensor 1b when the temperature rise of the absorbent article is detected. It is determined whether the change in the gas output from the air conditioner is increasing or decreasing, and it is determined whether urination or defecation is based on the increase or decrease. Therefore, it is possible to accurately identify and detect urination or defecation. As a result, it is possible to prevent rough skin due to leaving the stool, and it is possible to prevent unsanitary behavior of a player who plays with the stool.
【００３８】また、温度センサ１ａ、ガスセンサ１ｂ、
及び色センサ１ｃのそれぞれをおむつ外側表面に取り付
けたので、介護対象者が不快になることがなくなる。Further, a temperature sensor 1a, a gas sensor 1b,
And since each of the color sensors 1c is attached to the outer surface of the diaper, the care recipient does not become uncomfortable.
【００３９】また、色センサ１ｃ、色判定手段３３を備
え、排尿排便判定手段３４により排尿後に排便があった
か否かを判定するので、排尿後の排便を精度良く検知す
ることができる。これにより、大便の放置による肌荒れ
を防止することができ、また、大便で遊ぶ者の不衛生行
為を防止することができ、その効果がさらに大となる。Further, since the color sensor 1c and the color judging means 33 are provided, and the urination / defecation judging means 34 judges whether or not there is defecation after urination, it is possible to accurately detect defecation after urination. As a result, it is possible to prevent rough skin due to leaving the stool, and it is possible to prevent unsanitary behavior of a player who plays with the stool, and the effect is further enhanced.
【００４０】また、色センサ１ｃは、排尿と判定された
ときのみ起動されるので、常時起動されているときより
も、消費電力を低減することができる。Further, since the color sensor 1c is activated only when urination is determined, power consumption can be reduced as compared with the case where the color sensor 1c is always activated.
【００４１】なお、本出願人はおむつ外側に各種のセン
サを取り付け、各センサを用いて排尿、軟便、硬便、尿
後の便の検知を行った。おむつ外側からの検知結果を図
６に示す。図６からもわかるように、温度センサとガス
センサとを併用すると（即ち温度とガスとを同時に使用
すること）、排尿、軟便、硬便を精度良く検知できた
（○印で示す）。The present applicant attached various sensors to the outside of the diaper, and detected urination, loose stool, hard stool, and post-urine stool using each sensor. FIG. 6 shows the detection results from the outside of the diaper. As can be seen from FIG. 6, when the temperature sensor and the gas sensor were used together (that is, temperature and gas were used simultaneously), urination, loose stool, and hard stool could be accurately detected (indicated by a circle).
【００４２】また、温度上昇を検知した後にガスセンサ
を動作させてガスの出力変化を検知すると（温度→ガ
ス）、排尿、軟便、硬便を精度良く検知でき（○印で示
す）、精度が落ちるが、尿後の便を検知できた（△印で
示す）。また、温度センサとガスセンサとを併用し、色
センサを用いると（温度とガスとの併用→色センサ）、
排尿、軟便、硬便、尿後の便を精度良く検知できた（○
印で示す）。また、温度上昇を検知した後にガスセンサ
を動作させてガスの出力変化を検知し光センサを起動す
ると（温度→ガス→色センサ）、排尿、軟便、硬便、尿
後の便を精度良く検知できた（○印で示す）。If the gas sensor is operated after detecting the temperature rise to detect a change in gas output (temperature → gas), urination, loose stool, and hard stool can be accurately detected (indicated by a circle), and the accuracy decreases. However, post-urinary stool could be detected (indicated by △). If a temperature sensor and a gas sensor are used in combination and a color sensor is used (combination of temperature and gas → color sensor),
Urination, loose stool, hard stool, and stool after urine were detected with high accuracy (○
Mark). In addition, after detecting the temperature rise, the gas sensor is operated to detect the change in gas output, and the optical sensor is activated (temperature → gas → color sensor), which can accurately detect urination, loose stool, hard stool, and post-urine stool. (Indicated by a circle).
【００４３】また、インピーダンスセンサとガスセンサ
と色センサとを用いても、排尿、軟便、硬便、尿後の便
を精度良く検知できた（○印で示す）。インピーダンス
センサとは、吸収性物品の外側表面に取り付けられ、一
対の電極間のインピーダンス変化を検知することにより
吸収性物品内の排泄の有無を検知するものである。Further, even with the use of the impedance sensor, the gas sensor and the color sensor, urination, loose stool, hard stool, and stool after urine could be detected with high accuracy (indicated by a circle). The impedance sensor is attached to the outer surface of the absorbent article, and detects the excretion in the absorbent article by detecting a change in impedance between the pair of electrodes.
【００４４】なお、温度センサのみ、ガスセンサのみ、
超音波センサのみ、湿度センサのみ、色センサのみ、イ
ンピーダンスセンサのみ、導通式センサのみ、静電容量
センサのみ、静電容量センサと抵抗体との組み合わせの
それぞれについては、排尿、軟便、硬便のいずれかの精
度が悪く、不適であった。Note that only the temperature sensor, only the gas sensor,
For each of the ultrasonic sensor only, humidity sensor only, color sensor only, impedance sensor only, conduction sensor only, capacitance sensor only, and combination of capacitance sensor and resistor, urination, loose stool, hard stool Either accuracy was poor and unsuitable.
【００４５】以上のことから、各センサの取付部位は排
泄ポイントで、センサの好ましい組み合わせとしては、
温度センサ、ガスセンサ及び色センサである。また、セ
ンサの最も好ましい組み合わせとしては、実施例に示し
たように、温度センサ→ガスセンサ→色センサの順番で
使用することである。From the above, the attachment site of each sensor is an excretion point.
A temperature sensor, a gas sensor and a color sensor. The most preferable combination of the sensors is to use the temperature sensor, the gas sensor, and the color sensor in this order as shown in the embodiment.
【００４６】（第２の実施の形態）次に、本発明の第２
の実施の形態の排泄検知装置を説明する。図７は本発明
の第２の実施の形態の排泄検知装置を示す構成図であ
る。第２の実施の形態の排泄検知装置は、第１の実施の
形態の排泄検知装置に対して、排泄検知装置本体を送信
装置と受信装置とに分割したことを特徴とするもので、
温度センサ１ａ、ガスセンサ１ｂ、色センサ１ｃ、送信
装置４、受信装置５を備えている。(Second Embodiment) Next, a second embodiment of the present invention will be described.
The excretion detection device according to the embodiment will be described. FIG. 7 is a configuration diagram showing an excretion detection device according to a second embodiment of the present invention. The excretion detection device according to the second embodiment is characterized in that the excretion detection device main body is divided into a transmission device and a reception device with respect to the excretion detection device according to the first embodiment.
A temperature sensor 1a, a gas sensor 1b, a color sensor 1c, a transmitting device 4, and a receiving device 5 are provided.
【００４７】送信装置４は、温度上昇検知手段３１、ガ
ス検知出力変化検知手段３２、色判定手段３３、排尿排
便判定手段３４、送信機３８、表示手段３７を有してい
る。温度上昇検知手段３１、ガス検知出力変化検知手段
３２、色判定手段３３、排尿排便判定手段３４、及び排
尿回数検知手段３５は、例えばマイクロコンピュータで
構成されている。送信機３８は、排尿排便判定手段３４
からの排尿排便判定結果情報を受信装置５に送信する。The transmitting device 4 has a temperature rise detecting means 31, a gas detection output change detecting means 32, a color judging means 33, a urination / defecation judging means 34, a transmitter 38, and a display means 37. The temperature rise detecting means 31, the gas detection output change detecting means 32, the color judging means 33, the urination / defecation judging means 34, and the urination frequency detecting means 35 are constituted by, for example, a microcomputer. The transmitter 38 includes a urination / defecation determining means 34
Is transmitted to the receiving device 5.
【００４８】受信装置５は、受信機５１、電圧出力発生
手段５２、警報手段５３を有して構成される。受信機５
１は、送信機３８からの排尿排便判定結果情報を受信
し、電圧出力発生手段５２は、受信機５１で受信した排
尿排便判定結果情報に応じた電圧を発生する。警報手段
５３は、警報ブザーあるいはバイプレータあるいはラン
プ等からなり、電圧出力発生手段５２で得られた電圧に
基づき排尿排便判定結果情報を警報により報知する。The receiving device 5 includes a receiver 51, a voltage output generating means 52, and an alarm means 53. Receiver 5
1 receives the urination and defecation determination result information from the transmitter 38, and the voltage output generating means 52 generates a voltage according to the urination and defecation determination result information received by the receiver 51. The warning means 53 includes a warning buzzer, a vibrator, a lamp, or the like, and notifies the urination and defecation determination result information by a warning based on the voltage obtained by the voltage output generating means 52.
【００４９】なお、第２の実施の形態の排泄検知装置に
おいて、第１の実施の形態の排泄検知装置と同一部分
は、同一符号を付し、その詳細な説明は省略する。In the excretion detecting device of the second embodiment, the same parts as those of the excretion detecting device of the first embodiment are denoted by the same reference numerals, and the detailed description thereof will be omitted.
【００５０】このように構成された第２の実施の形態の
排泄検知装置によれば、排尿排便判定手段３４からの排
尿排便判定結果情報が、送信機３８により受信装置５に
送信されると、受信装置５では、受信機５１は、送信機
３８からの排尿排便判定結果情報を受信し、電圧出力発
生手段５２は、受信機５１で受信した排尿排便判定結果
情報に応じた電圧を発生し、警報手段５３は、前記電圧
に基づき排尿排便判定結果情報を警報により報知する。According to the excretion detecting device of the second embodiment configured as described above, when the urination and defecation determination result information from the urination and defecation determining means 34 is transmitted to the receiving device 5 by the transmitter 38, In the receiving device 5, the receiver 51 receives the urination and defecation determination result information from the transmitter 38, and the voltage output generating means 52 generates a voltage according to the urination and defecation determination result information received by the receiver 51, The alarming means 53 notifies the urination and defecation determination result information by an alarm based on the voltage.
【００５１】従って、第１の実施の形態の排泄検知装置
の効果と同様な効果が得られるとともに、送信装置４及
び受信装置５を用いるので、特に病院等の介護施設にお
いて複数の介護対象者の排泄を管理することができる。Therefore, the same effects as those of the excretion detecting device of the first embodiment can be obtained, and the transmitting device 4 and the receiving device 5 are used. Excretion can be controlled.
【００５２】なお、本発明は、前述した第１及び第２の
実施の形態の排泄検知装置に限定されるものではない。
第１及び第２の実施の形態では、温度センサ１ａを用い
たが、この温度センサ１ａの代わりに、おむつの外側表
面の湿度を検知する湿度センサ又はインピーダンスセン
サを用いても良い。また、介護用に限らず、乳児向け装
置として用いることができるのは言うまでもない。The present invention is not limited to the excretion detecting devices of the first and second embodiments described above.
Although the temperature sensor 1a is used in the first and second embodiments, a humidity sensor or an impedance sensor for detecting the humidity on the outer surface of the diaper may be used instead of the temperature sensor 1a. Needless to say, the present invention can be used not only for nursing care but also as a baby device.
【００５３】[0053]
【発明の効果】本発明によれば、排尿か排便かを精度良
く識別して検知し、介護対象者が不快になることがな
く、特に大便の放置による肌荒れを防止することができ
る排泄検知装置を提供することができる。According to the present invention, an excretion detecting device capable of accurately discriminating between urination and defecation to detect a person to be cared without becoming uncomfortable, and particularly to prevent rough skin due to leaving the stool. Can be provided.
【図１】本発明の第１の実施の形態の排泄検知装置を示
す構成図である。FIG. 1 is a configuration diagram showing an excretion detection device according to a first embodiment of the present invention.
【図２】第１の実施の形態の排泄検知装置の動作を示す
フローチャートである。FIG. 2 is a flowchart illustrating an operation of the excretion detection device according to the first embodiment.
【図３】排尿検知時の温度センサ及びガスセンサの出力
を示す図である。FIG. 3 is a diagram showing outputs of a temperature sensor and a gas sensor when detecting urination.
【図４】排便検知時の温度センサ及びガスセンサの出力
を示す図である。FIG. 4 is a diagram showing outputs of a temperature sensor and a gas sensor when detecting defecation.
【図５】排尿後の便の検知に使用する色センサのデータ
を示す図である。FIG. 5 is a diagram showing data of a color sensor used for detecting a stool after urination.
【図６】おむつ外側からの各センサの検知結果を示す図
である。FIG. 6 is a diagram showing detection results of each sensor from the outside of the diaper.
【図７】本発明の第２の実施の形態の排泄検知装置を示
す構成図である。FIG. 7 is a configuration diagram showing an excretion detection device according to a second embodiment of the present invention.
【符号の説明】 １ａ…温度センサ、１ｂ…ガスセンサ、１ｃ…色セン
サ、３…排泄検知装置本体、４…送信装置、５…受信装
置、３１…温度上昇検知手段、３２…ガス検知出力変化
検知手段、３３…色判定手段、３４…排尿排便判定手
段、３６…警報手段、３７…表示手段、３８…送信機、
５１…受信機、５２…電圧出力発生手段、５３…警報手
段。[Description of Signs] 1a: Temperature sensor, 1b: Gas sensor, 1c: Color sensor, 3: Excretion detecting device main body, 4: Transmitting device, 5: Receiving device, 31: Temperature rise detecting means, 32: Gas detection output change detection Means, 33: color determination means, 34: urination and defecation determination means, 36: alarm means, 37: display means, 38: transmitter,
51: receiver, 52: voltage output generating means, 53: alarm means.
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 2G045 AA15 AA22 CB03 CB04 CB30 FA11 FA33 FB05 GC12 GC18 GC30 JA07 3B029 BE06 4C098 AA09 CC01 CD07 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2G045 AA15 AA22 CB03 CB04 CB30 FA11 FA33 FB05 GC12 GC18 GC30 JA07 3B029 BE06 4C098 AA09 CC01 CD07
Claims (5)
に取り付けられ、前記吸収性物品の温度、湿度、インピ
ーダンスの少なくとも一つを検知する第１の検知手段
と、 前記吸収性物品の外側表面に取り付けられ、前記排泄物
から発生するガスを検知する第２の検知手段と、 前記第１の検知手段からの検知信号と前記第２の検知手
段からの検知信号とに基づいて排尿か排便かを判定する
排尿排便判定手段と、を有することを特徴とする排泄検
知装置。A first detecting means attached to an outer surface of the absorbent article for absorbing excrement and detecting at least one of temperature, humidity, and impedance of the absorbent article; and an outer side of the absorbent article. Second detection means attached to the surface and detecting gas generated from the excrement; urination or defecation based on a detection signal from the first detection means and a detection signal from the second detection means An excretion detection device, comprising: a urination / defecation judging means for judging whether or not the excretion is detected.
化が検知された場合に前記第２の検知手段からの検知信
号に基づいてガス検知出力の変化を検知するガス検知出
力変化検知手段を有し、 前記排尿排便判定手段は、前記ガス検知出力変化検知手
段からのガス検知出力の変化が増加か減少かに基づいて
排尿か排便かを判定することを特徴とする請求項１記載
の排泄検知装置。2. A gas detection output change detection means for detecting a change in gas detection output based on a detection signal from the second detection means when a change in a detection signal from the first detection means is detected. The urination / defecation determining means determines whether to urinate or defecate based on whether the change in the gas detection output from the gas detection output change detection means increases or decreases. Excretion detection device.
れ、前記排泄物の色を検知する色検知手段を有し、 前記排尿排便判定手段は、前記第１の検知手段からの検
知信号と前記第２の検知手段からの検知信号と前記色検
知手段からの色検知信号とに基づいて排尿か排便かを判
定することを特徴とする請求項１又は請求項２記載の排
泄検知装置。3. A urine / defecation judging means attached to an outer surface of the absorbent article and detecting a color of the excrement, wherein the urination and defecation judging means detects a detection signal from the first detecting means and The excretion detection device according to claim 1 or 2, wherein whether to urinate or defecate is determined based on the detection signal from the second detection means and the color detection signal from the color detection means.
と判定した場合に、前記色検知手段からの色検知信号に
基づいて前記排尿後に排便があったかどうかを判定する
ことを特徴とする請求項３記載の排泄検知装置。4. The urination and defecation determining means, when determining that urination has occurred, determines whether or not there has been defecation after urination based on a color detection signal from the color detecting means. 3. The excretion detection device according to 3.
送信する送信機と、 この送信機からの前記判定結果を受信する受信機と、を
有することを特徴とする請求項１乃至請求項４のいずれ
か１項記載の排泄検知装置。5. The apparatus according to claim 1, further comprising: a transmitter for transmitting a determination result from said urination and defecation determining means; and a receiver for receiving said determination result from said transmitter. An excretion detection device according to any one of claims 1 to 7.
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|---|---|---|---|
| JP2000343654A JP4405660B2 (en) | 2000-11-10 | 2000-11-10 | Excretion detection device |
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| JP4405660B2 JP4405660B2 (en) | 2010-01-27 |
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| WO2011078325A1 (en) * | 2009-12-24 | 2011-06-30 | ユニ・チャーム株式会社 | Excretion detection device and absorbable substance |
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