JP4529303B2 - Body fat measurement toilet equipment - Google Patents

Body fat measurement toilet equipment Download PDF

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Publication number
JP4529303B2
JP4529303B2 JP2001066345A JP2001066345A JP4529303B2 JP 4529303 B2 JP4529303 B2 JP 4529303B2 JP 2001066345 A JP2001066345 A JP 2001066345A JP 2001066345 A JP2001066345 A JP 2001066345A JP 4529303 B2 JP4529303 B2 JP 4529303B2
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electrode
current
body fat
contact
hand
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JP2002263035A (en
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和典 石井
恭宏 河本
真也 中川
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/48Other medical applications
    • A61B5/4869Determining body composition
    • A61B5/4872Body fat

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
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  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
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  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Toilet Supplies (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、トイレ内で臀部等を利用して体脂肪を測定する装置、特にこの体脂肪測定のための電極構成に関するものである。
【0002】
【従来の技術】
家庭で日々の健康管理を行う機器の一つとして、生体インピーダンス測定による体脂肪率計が近年急激に普及してきている。この体脂肪率計は両手間、もしくは両足間の生体インピーダンスを測定し、予め統計的手法によって導き出した相関式を基に、体脂肪率を算出している。
【0003】
一方、電流経路が両手間や両足間だけでなく、胴体部も含めた経路を導入することにより測定精度を高めたものも考案されている。例えば、特開2000−126088号公報に記載された説明では、トイレの便座部及び手で握れる部位に電極を構成することにより、腰周りを含めた胴体部分の生体インピーダンスも付加した体脂肪測定構成を記載している。図10において、1は温水洗浄便座であり便器2に設置されている。温水洗浄便座1の便座部3には、着座時に便座部3が左臀部に接触するように、通電用の便座部電流電極4及び電位測定用の便座部電圧電極5を構成している。また、温水洗浄便座1の右サイドには棒状の部材6が設置され、手部の通電用の手部電流電極7及び電位測定用の手部電圧電極8が構成されている。そして便座部3に着座し、棒状の部材6の手部電流電極7、手部電圧電極8を手で握ることにより、手部と左臀部間の身体内部のインピーダンスを測定し、体脂肪率を算出していた。
【0004】
【発明が解決しようとする課題】
しかしながら、従来の体脂肪測定トイレ装置では、便座に着座する際の座り方、着衣の状況等により便座と臀部の位置関係が変動するので、各電流電極4、7、及び各電圧電極5、8により測定される身体内部のインピーダンス値がばらつき、この身体内部のインピーダンス値より算出される体脂肪率にばらつきが生じ、実際の体脂肪率は変わらないのに、便座への座り方等によって体脂肪率が増減するという課題があった。
【0005】
本発明は、上記従来の課題を解決するもので、上記便座着座時の便座と臀部の位置関係等、電流電極及び電圧電極と身体との接触位置の影響により体脂肪率算出の基となる身体内部インピーダンスのばらつきがほとんど発生しないように、電流電極、電圧電極を構成することにより、測定精度の高い体脂肪測定トイレ装置の提供を目的とする。
【0006】
【課題を解決するための手段】
前記従来の課題を解決するために、本発明の体脂肪測定トイレ装置は、高周波電流を身体の臀部もしくは大腿部と手部との間に印加できるように配設してなる一対の電流電極と、身体の臀部もしくは大腿部と手部に接触できるように配設してなる抵抗電位を測定する電位測定用の一対の電圧電極と、この電流電極と電圧電極により身体内部インピーダンスを測定し体脂肪率を算出する算出装置を備え、前記臀部もしくは大腿部に接触できるように配設してなる前記電流電極、及び前記電圧電極を便座着座面の左右各側のいずれか一方にそれぞれ配したものである。
【0007】
これによって、体脂肪測定時に電流電極及び電圧電極と身体との接触位置の影響により体脂肪率算出の基となる身体内部インピーダンスのばらつきがほとんど発生しないように構成でき、測定精度を高めることができる。この場合、特に、臀部もしくは大腿部に接触できるように配設してなる電流電極、電圧電極を、便座着座面の左右各側のいずれか一方にそれぞれ配設することにより、着座により一対の電流電極に形成される電流導通経路は、臀部もしくは大腿部の左右一方側より手部への経路となり、臀部もしくは大腿部の他方側の電圧電極と手部の電圧電極により測定される身体内部インピーダンスの測定区間は手部と左右大腿部の付根近傍間となるため、便座の着座位置が左右、前後に変動しても、身体内部インピーダンスの測定区間はほとんど変わらず、体脂肪測定の精度を高めることができる。
【0008】
【発明の実施の形態】
請求項1に記載の発明は、高周波電流を身体の臀部もしくは大腿部と手部との間に印加できるように配設してなる一対の電流電極と、身体の臀部もしくは大腿部と手部に接触できるように配設してなる抵抗電位を測定する電位測定用の一対の電圧電極により身体内部インピーダンスを測定し体脂肪率を算出する算出装置を備え、前記臀部もしくは大腿部に接触できるように配設してなる前記電流電極、及び前記電圧電極を便座着座面の左右各側のいずれか一方にそれぞれ配したことにより、体脂肪測定の際に、着座により一対の電流電極に形成される電流導通経路は、臀部もしくは大腿部の左右一方側より手部への経路となり、臀部もしくは大腿部の他方側の電圧電極と手部の電圧電極により測定される身体内部インピーダンスの測定区間は手部と左右大腿部の付根近傍間となるため、便座の着座位置が左右、前後に変動しても、身体内部インピーダンスの測定区間はほとんど変わず、体脂肪測定の精度を高めることができる。
【0009】
請求項に記載の発明は、高周波電流を身体の臀部もしくは大腿部と手部との間に印加できるように配設してなる一対の電流電極と、身体の臀部もしくは大腿部と手部に接触できるように配設してなる抵抗電位を測定する電位測定用の一対の電圧電極と、前記電流電極と前記電圧電極により身体内部インピーダンスを測定し体脂肪率を算出する算出装置を備え、前記臀部もしくは大腿部に接触できるように配設してなる電流電極、電圧電極を、便座着座面及び臀部上部に接触できるように構成してなる便座後方部材にそれぞれ配設することにより、一対の電流電極により形成される電流導通経路は、臀部もしくは大腿部の一方側より手部への経路となり、臀部上部に接触できるように構成してなる便座後方部材に配設される電圧電極と手部の電圧電極により測定される身体内部インピーダンスの測定区間は手部と臀部上方の電圧電極配設部近傍間となるため、便座の着座位置が左右、前後に変動しても、身体内部インピーダンスの測定区間はほとんど変わず、体脂肪測定の精度を高めることができる。一方、一対の電流電極、電圧電極の位置を上記の逆位置にそれぞれ配設しても、同様な効果を奏することが可能である。
【0010】
請求項に記載の発明は、特に、請求項1または2に記載の前記臀部もしくは大腿部に接触できるように配設してなる前記電流電極、電圧電極を、便座着座面及び便座前方より突出し大腿部に接触できるように形成してなる便座構成部にそれぞれ配設することにより、一対の電流電極により形成される電流導通経路は、臀部もしくは大腿部の一方側より手部への経路となり、便座前方より突出し大腿部に接触できるように形成してなる他方側の便座構成部に配設される電圧電極と手部の電圧電極により測定される身体内部インピーダンスの測定区間は手部と左右大腿部の付根近傍間となるため、便座の着座位置が左右、前後に変動しても、身体内部インピーダンスの測定区間はほとんど変わず、体脂肪測定の精度を高めることができる。一方、一対の電流電極、電圧電極の位置を上記の逆位置にそれぞれ配設しても、同様な効果を奏することが可能である。
【0011】
請求項に記載の発明は、特に、請求項1から3のいずれか1項に記載の前記手部に接触できるように配設してなる前記電流電極、電圧電極を、右手及び左手のいずれか一方にそれぞれ接触できるように便座周辺に構成してなる握り部に配設することにより、一対の電流電極により形成される電流導通経路は、臀部もしくは大腿部より手の握り部左右一方側への経路となり、手部の他方側の握り部に配設する電圧電極と臀部もしくは大腿部の電圧電極により測定される身体内部インピーダンスの測定区間は左右腕の付根部分近傍と臀部もしくは大腿部間、すなわちほぼ胴体部分となるため、手の握り方、握り位置が変動しても、身体内部インピーダンスの測定区間はほとんど変わず、体脂肪測定の精度を高めることができる。
【0012】
請求項に記載の発明は、特に、請求項1から3のいずれか1項に記載の前記手部に接触できるように配設してなる前記電流電極、電圧電極を、便座後方部に構成してなるケース部材の左右各側の一方に配設することにより、一対の電流電極により形成される電流導通経路は、臀部もしくは大腿部より上記ケース部材の手部の接触部の左右一方側への経路となり、上記ケース部材の左右各側の他方に配設する電圧電極と臀部もしくは大腿部の電圧電極により測定される身体内部インピーダンスの測定区間は左右腕の付根部分近傍と臀部もしくは大腿部間、すなわちほぼ胴体部分となるため、手との接触具合、接触位置が変動しても、身体内部インピーダンスの測定区間はほとんど変わず、体脂肪測定の精度を高めることができる。
【0013】
請求項に記載の発明は、特に、請求項1から3のいずれか1項に記載の前記手部に接触できるように配設してなる前記電流電極、電圧電極を、指部及び掌部にそれぞれ接触できるように便座周辺部材に配設することにより、一対の電流電極により形成される電流導通経路は、臀部もしくは大腿部より指部への経路となり、肘部に配設する電圧電極と臀部もしくは大腿部の電圧電極により測定される身体内部インピーダンスの測定区間は掌部と臀部もしくは大腿部間となるため、掌部という位置変動のきわめて小さな位置であり、接触位置変動も小さく、身体内部インピーダンスの測定区間はほとんど変わず、体脂肪測定の精度を高めることができる。また、上記掌部を左右の他方側に配設する場合には、請求項5,6と同様に、指部、及び掌部との接触具合、接触位置が変動しても、身体内部インピーダンスの測定区間はほとんど変わず、体脂肪測定の精度を高めることができる。
【0014】
請求項に記載の発明は、特に、請求項1から6のいずれか1項に記載の前記電流電極あるいは電圧電極を、導電性フィラーを含有した樹脂材料により形成することにより、電流電極、電圧電極を配設する便座もしくは便座周辺部材の形状に影響されることなく、身体測定部位に確実に接触でき、デザイン性にも優れた形状で容易に構成でき、体脂肪測定の精度を高めることができる。
【0015】
請求項に記載の発明は、特に、請求項1から7のいずれか1項に記載の前記電流電極あるいは電圧電極と身体が接触する方向に柔軟性を有する材料によりこの電流電極あるいは電圧電極を形成することにより、この電極の柔軟性により身体と電極との接触面積が増加するので、電流電極、電圧電極と身体との接触レベルを高めることができ、体脂肪測定の際、接触状態が悪く測定エラー等が出ることなく、確実に高精度に体脂肪測定することが可能となる。個人差にもよるが、特に、身体の皮膚が乾燥しやすい乾燥肌の人にとっては、電極の身体との接触面に水分や導電性クリーム等を付けたりすることもなく、極めて有効である。
【0016】
【実施例】
以下本発明の実施例について、図面を参照しながら説明する。
【0017】
(実施例1)
図1は本発明の実施例1における体脂肪測定トイレ装置の斜視図を示すものである。
【0018】
図1において、9は温水洗浄便座であり便器10に設置されている。温水洗浄便座9の便座部11の着座表面には、体脂肪測定用のための通電用の便座部電流電極12及び電位測定用の便座部電圧電極13が臀部もしくは大腿部の左右各位置にそれぞれ配設されている。また、温水洗浄便座9の右袖構成部14には、手で握れる構造の手電極構成部15が固定されており、手電極構成部15にはステンレス材よりなる通電用の手電極構成部電流電極16及び電位測定用の手電極構成部電圧電極17が巻きつけ固定されている。そして便座部電流電極12と手電極構成部電流電極16で一対の電流電極を構成し、また便座部電圧電極13と手電極構成部電圧電極17で一対の電圧電極を構成する。
【0019】
次に動作、作用を説明する。図2は体脂肪測定位置を示す概略図であるが、手電極構成部電流電極16、便座部電流電極12はそれぞれ図2で示す身体部位のA、Bに、手電極構成部電圧電極17、便座部電圧電極13はそれぞれ身体部位のC、Dに接触するように構成されているため、便座部11に着座することにより電流導通経路は点線ABとなる。また、手電極構成部電圧電極17、便座部電圧電極13により測定される電位測定経路は点線CDとなるが、実際に電位が測定される身体内部は、この電流導通経路及び電圧測定経路が交叉する左右両脚間の付根部分をEとすると、手部Cと両脚間付根部分Eの間となる。このため、体脂肪測定の基となる身体内部インピーダンスは手部Cと両脚間付根部分E間のインピーダンスとなる。18はこの身体内部インピーダンスを測定し体脂肪率を算出する算出装置であり、電流導通経路ABに微弱な高周波電流(50kHz、500μA)を流し、身体内部の電位測定区間CEの電位を測定し、4端子法により身体内部インピーダンスCEを求め体脂肪率を算出する。ここで、身体内部インピーダンスから、体脂肪率を算出する方法としては、身長及び体重をパラメータとして、この身体内部インピーダンスと体密度との相関式を統計的手法により求め、Brozekの式により、計算している。
【0020】
以上のように、臀部もしくは大腿部に接触できるように配設してなる便座部電流電極12、便座部電圧電極13を、便座着座面の左右各側のいずれか一方にそれぞれ配設することにより、一対の電流電極により形成される電流導通経路は、手部より臀部もしくは大腿部の左右一方側への経路ABとなり、臀部もしくは大腿部の他方側の電圧電極と手部の電圧電極により測定される身体内部インピーダンスの測定区間は手部と左右大腿部の付根近傍間CEとなるため、便座の着座位置が左右、前後に変動しても、身体内部インピーダンスの測定区間CEはほとんど変わらず、体脂肪測定の精度を高めることができるものである。さらには、便座片側に電極が配設することもなく、左右両側に配設できるので見た目のデザイン性も向上する。
【0021】
実際にこの効果をみるため、臀部もしくは大腿部の便座部電流電極12、便座部電圧電極13を臀部もしくは大腿部の左側一方に配設した比較例の構成を作製した。図3は、本発明の第1の実施例の比較例を示す体脂肪測定トイレ装置の斜視図であるが、図1に示す便座部11の便座部電流電極12、便座部電圧電極13を配設せずに、便座部11の左側一方に便座部電流電極19、便座部電圧電極20を配設している。
【0022】
図4は、この場合の体脂肪測定位置を示す概略図であるが、手電極構成部電流電極16、便座部電流電圧19はそれぞれ図4で示す身体部位のA、Fに、手電極構成部電圧電極17、便座部電圧電極20はそれぞれ身体部位のC、Gに接触するように構成されているため、便座部11に着座することにより電流導通経路は点線AFとなる。また、手電極構成部電圧電極17、便座部電圧電極20により測定される電位測定経路は点線CGとなり、実際に電位が測定される身体内部もこの電位測定経路CG間となる。このため、体脂肪測定の基となる身体内部インピーダンスもこの電位測定経路CG間のインピーダンスとなる。なお、21は体脂肪率算出装置18を上記測定位置変化に伴う相関式修正を施したものである。
【0023】
以上のように、臀部もしくは大腿部に接触できるように配設してなる便座部電流電極19、便座部電圧電極20を、便座着座面の同じ左側に配設することにより、身体内部インピーダンスの測定区間は手電極構成部電圧電極17及び便座部電圧電極20間となるため、着座位置が前後左右に移動することにより、身体内部インピーダンスもばらつくこととなる。
【0024】
実際に、本発明の実施例である図1に示す構成の体脂肪測定トイレ装置と比較例である第3図に示す構成の体脂肪測定トイレ装置の比較実験を行った。同一人物、同一時間に体脂肪率の変化がほとんどないと想定される条件で、この比較実験を5人で、20回ずつ便座部11に着座し直し体脂肪率を測定してみた。そして、上記体脂肪率測定による各20データの平均値、3σを算出しばらつき(±3σ/平均値)を検証した。比較例の図3で示す構成では、この5人のばらつきが±4〜6%の範囲であったが、本実施例の図1に示す構成では、この5人のばらつきを±2〜3%の範囲であり、本発明の効果を明確に実証する結果であった。体脂肪測定には、機器、姿勢、身体内部の各種変動等多くのばらつき要因が想定されるが、本発明による構成により体脂肪測定の位置要因による体脂肪率のばらつきについては、十分に抑制されたのではないかと考えられる。
【0025】
(実施例2)
次に、図5は本発明の実施例2における体脂肪測定トイレ装置の斜視図を示すものである。
【0026】
図5において、温水洗浄便座22の便座部23の着座表面には、体脂肪測定用のための通電用の便座部電流電極24が配設されており、また温水洗浄便座22の本体ケースと便座部間の部分に本体ケース部電圧電極25をケース本体より出し入れできる構造で構成している。この本体ケース部電圧電極25は体積固有抵抗が5×10−2Ωcmのオレフィン系エラストマで成形されており、十分な柔軟性も有している。また、26は手で握れる構造の手電極構成部であり、手電極構成部電流電極27、手電極構成部電圧電極28が配設されており、本体ケース内部の体脂肪率算出装置と電気的に接続されている。なお、29は、温水洗浄便座、体脂肪測定の操作リモコンであり、赤外線により送受信される。
【0027】
そして便座部電流電極24と手電極構成部電流電極27により一対の電流電極を構成し、また本体ケース部電圧電極25と手電極構成部電圧電極28により一対の電圧電極構成する。
【0028】
次に動作、作用を説明する。本実施例においても、一対の電流電極により形成される電流導通経路は、手部より臀部もしくは大腿部の左側への経路となり、本体ケースの本体ケース部電圧電極25を突出させることにより、便座部23への着座時、本体ケース部電圧電極25と右臀部上部に接することになり、この電圧電極25と手部の手電極構成部電圧電極28により測定される身体内部インピーダンスの測定区間は、第1の実施例と同様に、手部と左右大腿部の付根近傍間となるため、便座の着座位置が左右、前後に変動しても、身体内部インピーダンスの測定区間CEはほとんど変わらず、体脂肪測定の精度を高めることができるものである。
【0029】
また、臀部もしくは大腿部に接触できるように配設してなる電流電極、電圧電極を、便座着座面及び便座前方より突出し大腿部に接触できるように形成しても、同様の効果を奏することができる。
【0030】
(実施例3)
次に、図6は本発明の実施例3における体脂肪測定トイレ装置の斜視図を示すものである。
【0031】
図6において、温水洗浄便座30の本体ケースの左右側面より筒状の手電極構成部31、32が取り付けられており、この手電極構成部31、32には、それぞれ手部電流電極33、手部電圧電極34が巻き付けられ固定されている。また、便座部35の左右着座表面に便座部電流電極36、便座部電圧電極37が配設されている。なお、38は、温水洗浄便座、体脂肪測定の操作リモコンであり、赤外線により送受信される。
【0032】
次に動作、作用を説明する。図7はこの体脂肪測定位置を示す概略図であるが、手部電流電極33、便座部電流電極36はそれぞれ図6で示す身体部位のH、Iに、手部電圧電極34、便座部電圧電極37はそれぞれ身体部位のJ、Kに接触するように構成されているため、電流導通経路は点線HI、電位測定経路は点線JKとなるが、実際に電位が測定される身体内部は、この電流導通経路及び電圧測定経路が交叉する胴体上部、下部をそれぞれL、Mとすると、点線LM間となる。このため、体脂肪測定の基となる身体内部インピーダンスは胴体上部Lと胴体下部M間となり、電流電極4の接触位置の影響により体脂肪率が変動することはなくなる。また、39はこの身体内部インピーダンスを測定し体脂肪率を算出する算出装置であり、前実施例と同様に、4端子法によりLM間の身体内部インピーダンスを求め体脂肪率を算出するが、上記のため体脂肪率の精度を飛躍的に高めるものである。
【0033】
以上のように、手部に手部に接触できるように配設してなる手部電流電極33、手部電圧電極34を、右手及び左手にそれぞれ接触できるように構成し、臀部もしくは大腿部に接触できるように配設してなる便座部電流電極36、便座部電圧電極37を、便座着座面の左右各側にそれぞれ配設することにより、測定される身体内部インピーダンスの測定区間は胴体部分となるため、手の握り方が変わっても、便座の着座位置が左右、前後に変動しても、身体内部インピーダンスの測定区間LMは上記胴体部分だけであり、ほとんど変わることなく、体脂肪測定の精度を高めることができるものである。なお、本構成によれば、体脂肪測定で特に気になる腰周りの脂肪量も精度よく測定できる効果もあり、他の身体部位との併用で、さらに身体細部にわたった体脂肪分布の測定を可能にするものであり、体脂肪率と有病指数との相関も高められるものである。さらには、各部位ごとに測定用の高周波電流を設定して、さらに高精度化を図ることも可能である。
【0034】
(実施例4)
次に、図8は本発明の実施例4における体脂肪測定トイレ装置の斜視図を示すものである。
【0035】
図8において、温水洗浄便座40の本体ケースの左右側面よりステンレス材よりなるL字棒状の手摺棒41,42が設置され、この先端にそれぞれ低抵抗の導電性樹脂よりなる握り部43、44が取り付けられている。また、便座部45の左右着座表面に便座部電流電極46、便座部電圧電極47が配設されている。なお、48は温水洗浄便座40が設置された便器である。
【0036】
次に動作、作用を説明する。この実施例の場合も、上記握り部43、44を電圧電極、電流電極とすることにより、上記電流電極4により測定される身体内部のインピーダンスは胴体部分となり、実施例3と同様な高い効果を奏するものである。また、手摺棒41、42は、ステンレス材で電気導通があるため温水洗浄便座本体内部でこの手摺棒に配線することで、体脂肪測定を可能にするものである。さらに、握り部43、44は導電性樹脂であるため、寒い時でも測定時に、手で握っても、金属のような冷たさを感じることはない。
【0037】
(実施例5)
次に、図9は本発明の実施例5における体脂肪測定トイレ装置の斜視図を示すものである。
【0038】
図9において、49は便器であり、便器49には温水洗浄便座50が設置されている。この温水洗浄便座50の本体ケース51は、低抵抗の導電性樹脂で成形されており、凹部52の下方に電気絶縁材53を介して電極54が配設されている。また、便座部55の左右着座表面に便座部電流電極56、便座部電圧電極57が配設されている。
【0039】
次に動作、作用を説明する。この実施例の場合も、便座部55表面に着座し、本体ケース51のN部に掌を接触させ、電流電極54に指を接触させることにより、本体ケース51を電圧電極、電流電極54を電流電極とすることにより、上記電流電極4により測定される身体内部のインピーダンスは、第1の実施例で詳述したように着座位置による変動もなく、さらに手部との接触位置、接触具合による変化も抑制されるので、きわめて高い測定精度を提供するものである。
【0040】
次に、電流電極あるいは電圧電極の仕様について説明する。電極材料は、トイレ装置ということからを、防錆性の良好なステンレスを中心とする金属が一般的であるが、樹脂材料に金属メッキをしたものであっても、導電性ペーストで構成したものであってもよく、低抵抗であれば、導電性フィラーを含有した樹脂材料により形成してものであってもよい。この導電性フィラーを含有した導電性樹脂材料としては、導電性フィラーとしてカーボンブラック、ステンレス繊維、ステンレスマイクロファイバー、黄銅繊維等各種あり、バインダ樹脂としては一般のプラスチック材料で加工可能である。また、この導電性樹脂材料は、好ましくは10−1Ωcm以下の体積固有抵抗であれば、体脂肪測定の電極として十分に使用可能である。また、電極抵抗がこの値よりある程度高くても、測定の際に、この電極抵抗分を補正することによって容易に実現できる。この導電性フィラーを含有した樹脂材料を使用することにより、わざわざ電極を配設することなく、上記実施例でも説明したように、ケース等の成形品の外郭を電極に兼用でき、加工性、組立て性、デザイン性を向上できるばかりでなく、寒い時に特に気になる金属電極の冷たさ、さらには金属バリ等から安全性の面で極めて有効である。
【0041】
さらに、電流電極あるいは電圧電極と身体が接触する方向に柔軟性を有する材料によりこの電流電極あるいは電圧電極を形成することにより、電流電極、電圧電極と身体との接触レベルを高め、確実に高精度に体脂肪測定することが可能となるが、柔軟性材料としては、上記各種導電性フィラーをゴム、エラストマ等の柔軟性材料に添加した材料でよく、容易に加工できるものである。また、好ましくは、体脂肪測定で電極と身体が接触した際に、身体との接触方向に5%以上距離が変化する電極材料、形状であるとよい。また、柔軟性材料よりなる電極を用いることにより、便座や便座周辺部材の曲面部分への配設も容易になり、デザイン性も自由度が拡大されるものである。
【0042】
以上述べてきたように、本発明は有病指数と相関があると言われる体脂肪測定の精度を向上させるという健康管理の上で極めて有効なものであり、さらには簡易な電極構成で実現可能なものであるが、体脂肪測定の電流電極、あるいは電圧電極の接触位置の影響により身体内部インピーダンスがほとんど発生しないように、少なくとも臀部もしくは大腿部と手部のいずれか一方は、電流電極及び電圧電極を身体各部位の異なる位置で接触するように、便座もしくは便座周辺部材に配設する構成であれば、どのような構成であってもよい。
【0043】
【発明の効果】
以上のように、本発明によれば、体脂肪測定用の電流電極及び電圧電極と身体との接触位置の影響による身体内部インピーダンスのばらつきを抑制することができ、体脂肪測定トイレ装置の測定精度を高めることができる。
【図面の簡単な説明】
【図1】 本発明の実施例1における体脂肪測定トイレ装置の斜視図
【図2】 本発明の実施例1における体脂肪測定トイレ装置の体脂肪測定位置を示す概略図
【図3】 本発明の実施例1の比較例における体脂肪測定トイレ装置の斜視図
【図4】 本発明の実施例1の比較例における体脂肪測定トイレ装置の体脂肪測定位置を示す概略図
【図5】 本発明の実施例2における体脂肪測定トイレ装置の斜視図
【図6】 本発明の実施例3における体脂肪測定トイレ装置の斜視図
【図7】 本発明の実施例3における体脂肪測定トイレ装置の体脂肪測定位置を示す概略図
【図8】 本発明の実施例4における体脂肪測定トイレ装置の斜視図
【図9】 本発明の実施例5における体脂肪測定トイレ装置の斜視図
【図10】 従来の体脂肪測定トイレ装置の斜視図
【符号の説明】
11、23、35、45、55、3 便座部
12、19、24、36、46、56、4 便座部電流電極(電流電極)
13、20、37、47、57、5 便座部電圧電極(電圧電極)
25 本体ケース部電圧電極(電圧電極)
16、27 手電極構成部電流電極(電流電極)
17、28 手電極構成部電圧電極(電圧電極)
18、21、39 体脂肪率算出装置
33、7 手部電流電極(電流電極)
34、8 手部電圧電極(電圧電極)
44 握り部(電流電極)
43 握り部(電圧電極)
51 本体ケース(掌部)
54 電流電極(指部)
[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to an apparatus for measuring body fat using a buttocks or the like in a toilet, and more particularly to an electrode configuration for measuring body fat.
[0002]
[Prior art]
  As one of the devices for daily health management at home, a body fat percentage meter based on bioimpedance measurement has been rapidly spreading in recent years. This body fat percentage meter measures the bioelectrical impedance between both hands or both legs, and calculates the body fat percentage based on a correlation equation derived in advance by a statistical method.
[0003]
  On the other hand, the current path has been devised to improve the measurement accuracy by introducing a path including not only both hands and both feet but also the trunk. For example, in the description described in Japanese Patent Application Laid-Open No. 2000-126088, a body fat measurement configuration in which bioimpedance of a torso part including the waist is also added by configuring electrodes on a toilet seat part of a toilet and a part that can be grasped by a hand. Is described. In FIG. 10, reference numeral 1 denotes a warm water washing toilet seat, which is installed in the toilet 2. The toilet seat portion 3 of the warm water flush toilet seat 1 is configured with a toilet seat portion current electrode 4 for energization and a toilet seat portion voltage electrode 5 for potential measurement so that the toilet seat portion 3 comes into contact with the port side when seated. Further, a rod-like member 6 is installed on the right side of the warm water flush toilet seat 1, and a hand part current electrode 7 for energizing the hand part and a hand part voltage electrode 8 for measuring potential are configured. Then, sitting on the toilet seat 3 and grasping the hand current electrode 7 and the hand voltage electrode 8 of the rod-shaped member 6 by hand, the impedance inside the body between the hand and the left buttock is measured, and the body fat percentage is determined. It was calculated.
[0004]
[Problems to be solved by the invention]
  However, in the conventional body fat measurement toilet apparatus, the positional relationship between the toilet seat and the buttocks varies depending on how to sit on the toilet seat, the situation of clothing, etc., so that each current electrode 4, 7 and each voltage electrode 5, 8 The body internal impedance value measured by the variation varies, the body fat percentage calculated from this body impedance value varies, and the actual body fat percentage does not change, but the body fat varies depending on how you sit on the toilet seat, etc. There was a problem that the rate increased or decreased.
[0005]
  The present invention solves the above-mentioned conventional problems, and the body on which the body fat percentage is calculated based on the influence of the position of contact between the current electrode and the voltage electrode and the body, such as the positional relationship between the toilet seat and the buttocks when sitting on the toilet seat An object of the present invention is to provide a body fat measurement toilet apparatus with high measurement accuracy by configuring current electrodes and voltage electrodes so that variations in internal impedance hardly occur.
[0006]
[Means for Solving the Problems]
  In order to solve the above-described conventional problems, the body fat measurement toilet apparatus according to the present invention is a pair of current electrodes that are arranged so that a high-frequency current can be applied between the hip or thigh of the body and the hand. A pair of voltage electrodes for measuring a resistance potential arranged so as to be in contact with the buttocks of the body or the thigh and the hand, and measuring the internal impedance of the body using the current electrode and the voltage electrode. A calculation device for calculating body fat percentage,The current electrode and the voltage electrode arranged so as to be in contact with the buttocks or thighs are arranged on either the left or right side of the toilet seat seating surface, respectively.Is.
[0007]
  As a result, it can be configured so that variation in body internal impedance, which is a basis for calculating body fat percentage, hardly occurs due to the influence of the position of contact between the current electrode and voltage electrode and the body during body fat measurement, and measurement accuracy can be improved. .In this case, in particular, a current electrode and a voltage electrode arranged so as to come into contact with the buttocks or thighs are arranged on either the left or right side of the toilet seat seating surface, so that a pair of seats can be seated. The current conduction path formed in the current electrode is a path from the left or right side of the buttocks or thigh to the hand, and the body measured by the voltage electrode on the other side of the buttocks or thigh and the voltage electrode on the hand The internal impedance measurement interval is between the base of the hand and the left and right thighs, so even if the seating position of the toilet seat fluctuates left and right, back and forth, the measurement interval of the body internal impedance is almost unchanged, and body fat measurement Accuracy can be increased.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
  According to the first aspect of the present invention, a pair of current electrodes are arranged so that a high-frequency current can be applied between the hip or thigh of the body and the hand, and the hip or thigh of the body and the hand. The body fat percentage is calculated by measuring the internal impedance of the body with a pair of voltage electrodes for measuring the resistance potential arranged so as to be in contact with the body.Provided with a calculation device, the current electrode and the voltage electrode arranged so as to come into contact with the buttocks or thighs are arranged on either the left or right side of the toilet seat seating surface, respectively.Thus, during body fat measurement, the current conduction path formed in the pair of current electrodes by sitting is a path from the left or right side of the buttocks or thigh to the hand, and the other side of the buttocks or thigh The measurement interval of internal body impedance measured by the voltage electrode of the hand and the voltage electrode of the hand is between the base of the hand and the left and right thighs, so even if the seating position of the toilet seat varies from side to side, back and forth, Internal impedance measurement section is almost changedEtTherefore, the accuracy of body fat measurement can be increased.
[0009]
  Claim2The invention described inA pair of current electrodes are arranged so that a high-frequency current can be applied between the buttocks of the body or between the thigh and the hand, and the electrodes are arranged so as to be in contact with the buttocks of the body or the thigh and the hand. A pair of voltage electrodes for measuring the resistance potential, and a calculation device for calculating body fat percentage by measuring body internal impedance using the current electrode and the voltage electrode,By arranging a current electrode and a voltage electrode arranged so as to be in contact with the buttocks or thighs on a toilet seat rear member constituted so as to be able to come into contact with the toilet seat seating surface and the upper part of the buttocks, a pair of The current conduction path formed by the current electrode is a path from one side of the buttocks or thighs to the hand, and the voltage electrode and the hand disposed on the toilet seat rear member configured to be able to contact the upper part of the buttocks. The measurement interval of the internal body impedance measured by the voltage electrode of the head part is between the vicinity of the voltage electrode placement part above the hand part and the heel part, so even if the seating position of the toilet seat fluctuates from side to side, back and forth, Measurement interval is almost changedEtTherefore, the accuracy of body fat measurement can be increased. On the other hand, even if the positions of the pair of current electrodes and voltage electrodes are arranged at the opposite positions, the same effect can be obtained.
[0010]
  Claim3In particular, the invention described in claim 1Or 2Described inSaidArranged so that it can contact the hip or thighSaidBy arranging the current electrode and the voltage electrode in the toilet seat constituent part formed so as to protrude from the toilet seat seating surface and the front of the toilet seat and come into contact with the thigh, the current conduction path formed by the pair of current electrodes is The voltage electrode and the hand portion disposed on the toilet seat component on the other side formed as a path from the one side of the buttocks or the thigh to the hand portion, projecting from the front of the toilet seat and contacting the thigh The measurement interval of internal impedance measured by the voltage electrode is between the base of the hand and the left and right thighs, so even if the seating position of the toilet seat fluctuates left and right, back and forth, there is almost no measurement interval for internal impedance StrangeEtTherefore, the accuracy of body fat measurement can be increased. On the other hand, even if the positions of the pair of current electrodes and voltage electrodes are arranged at the opposite positions, the same effect can be obtained.
[0011]
  Claim4In particular, the invention described in claim 1Any one of 3Described inSaidArranged to contact the handSaidBy arranging the current electrode and the voltage electrode in the grip portion formed around the toilet seat so as to be in contact with either the right hand or the left hand, the current conduction path formed by the pair of current electrodes is the buttocks Alternatively, it is a path from the thigh to the left and right sides of the hand grip part, and the measurement section of the internal body impedance measured by the voltage electrode arranged on the grip part on the other side of the hand part and the voltage electrode of the buttocks or thigh Is between the base of the left and right arms and between the buttocks or thighs, that is, the torso, so even if the hand grip position or grip position changes, the measurement interval of the internal impedance of the body changes little.EtTherefore, the accuracy of body fat measurement can be increased.
[0012]
  Claim5In particular, the invention described in claim 1Any one of 3Described inSaidArranged to contact the handSaidBy arranging the current electrode and the voltage electrode on one of the left and right sides of the case member formed in the rear portion of the toilet seat, the current conduction path formed by the pair of current electrodes is more than the above from the buttocks or the thigh. Measurement of internal body impedance measured by the voltage electrode disposed on the other side of the left and right sides of the case member and the voltage electrode of the buttocks or thighs as a path to the left and right sides of the contact portion of the hand portion of the case member Since the section is between the base part of the left and right arms and between the buttocks or thighs, that is, the torso part, even if the contact condition with the hand and the contact position vary, the measurement section of the internal impedance of the body changes almost.EtTherefore, the accuracy of body fat measurement can be increased.
[0013]
  Claim6In particular, the invention described in claim 1Any one of 3Described inSaidArranged to contact the handSaidBy arranging the current electrode and the voltage electrode on the toilet seat peripheral member so as to be in contact with the finger part and the palm part, the current conduction path formed by the pair of current electrodes is transferred from the buttocks or the thigh to the finger part. The body internal impedance measurement section measured by the voltage electrode placed on the elbow and the voltage electrode on the hip or thigh is between the palm and the hip or thigh. The position of the internal impedance is almost the same.EtTherefore, the accuracy of body fat measurement can be increased. Further, when the palm part is arranged on the other side of the left and right sides, even if the contact state with the finger part and the palm part and the contact position fluctuate, Measurement interval is almost changedEtTherefore, the accuracy of body fat measurement can be increased.
[0014]
  Claim7The invention described inIn particular, the said one according to any one of claims 1 to 6.By forming the current electrode or voltage electrode from a resin material containing a conductive filler, the body electrode can be reliably measured without being affected by the shape of the toilet seat or the toilet seat peripheral member on which the current electrode and voltage electrode are arranged. It can be easily configured with a shape that can be contacted and has excellent design, and the accuracy of body fat measurement can be increased.
[0015]
  Claim8The invention described inIn particular, the said one according to any one of claims 1 to 7.By forming the current electrode or voltage electrode with a material having flexibility in the direction in which the current electrode or voltage electrode and the body come into contact with each other, the contact area between the body and the electrode increases due to the flexibility of the electrode. The contact level between the voltage electrode and the body can be increased, and the body fat can be reliably measured with high accuracy without causing a measurement error or the like due to a poor contact state during body fat measurement. Although it depends on individual differences, it is extremely effective for a person with dry skin, in which the skin of the body is easy to dry, without attaching moisture, conductive cream or the like to the contact surface of the electrode with the body.
[0016]
【Example】
  Embodiments of the present invention will be described below with reference to the drawings.
[0017]
  Example 1
  FIG. 1 shows a perspective view of a body fat measurement toilet apparatus according to Embodiment 1 of the present invention.
[0018]
  In FIG. 1, 9 is a warm water washing toilet seat, and is installed in the toilet bowl 10. On the seating surface of the toilet seat 11 of the warm water flush toilet seat 9, there are a toilet seat current electrode 12 for energization for body fat measurement and a toilet seat voltage electrode 13 for potential measurement at left and right positions of the buttocks or thigh. Each is arranged. In addition, a hand electrode component 15 having a structure that can be grasped by a hand is fixed to the right sleeve component 14 of the warm water flush toilet seat 9, and the hand electrode component 15 that is made of stainless steel is energized in the hand electrode component 15. Electrode 16 and hand electrode component voltage electrode 17 for potential measurement are wound and fixed. The toilet seat current electrode 12 and the hand electrode component current electrode 16 constitute a pair of current electrodes, and the toilet seat voltage electrode 13 and the hand electrode component voltage electrode 17 constitute a pair of voltage electrodes.
[0019]
  Next, the operation and action will be described. FIG. 2 is a schematic diagram showing the body fat measurement position, but the hand electrode component current electrode 16 and the toilet seat current electrode 12 are respectively connected to the body parts A and B shown in FIG. Since the toilet seat voltage electrode 13 is configured to contact C and D of the body part, the current conduction path becomes a dotted line AB by sitting on the toilet seat 11. Further, the potential measurement path measured by the hand electrode component voltage electrode 17 and the toilet seat voltage electrode 13 is a dotted line CD. However, in the body where the potential is actually measured, the current conduction path and the voltage measurement path intersect. Assuming that the root portion between the left and right legs to be E is between the hand portion C and the root portion E between both legs. For this reason, the internal body impedance that is the basis for body fat measurement is the impedance between the hand C and the root E between both legs. 18 is a calculation device for measuring the internal body impedance and calculating the body fat percentage, passing a weak high-frequency current (50 kHz, 500 μA) through the current conduction path AB, measuring the potential in the potential measurement section CE inside the body, The body fat percentage is calculated by obtaining the body internal impedance CE by the 4-terminal method. Here, as a method of calculating the body fat percentage from the body internal impedance, the correlation between the body internal impedance and the body density is obtained by a statistical method using the height and weight as parameters, and is calculated by Brozek's formula. ing.
[0020]
  As described above, the toilet seat current electrode 12 and the toilet seat voltage electrode 13 arranged so as to be in contact with the buttocks or the thighs are respectively arranged on either the left or right side of the toilet seat seating surface. Thus, the current conduction path formed by the pair of current electrodes is a path AB from the hand part to the left or right side of the buttocks or thigh, and the voltage electrode on the other side of the buttocks or thigh and the voltage electrode of the hand part The measurement interval CE of the internal body impedance is the CE between the base of the hand and the left and right thighs, so even if the seating position of the toilet seat fluctuates left and right, back and forth, the measurement interval CE of the internal body impedance is almost The accuracy of body fat measurement can be improved without change. Furthermore, since an electrode is not disposed on one side of the toilet seat and can be disposed on both the left and right sides, the appearance design is improved.
[0021]
  In order to actually see this effect, a configuration of a comparative example was prepared in which the toilet seat current electrode 12 and the toilet seat voltage electrode 13 in the buttocks or thighs were disposed on the left side of the buttocks or thighs. FIG. 3 is a perspective view of a toilet apparatus for measuring body fat showing a comparative example of the first embodiment of the present invention. The toilet seat portion current electrode 12 and the toilet seat portion voltage electrode 13 of the toilet seat portion 11 shown in FIG. Without being provided, the toilet seat portion current electrode 19 and the toilet seat portion voltage electrode 20 are arranged on the left side of the toilet seat portion 11.
[0022]
  FIG. 4 is a schematic diagram showing the body fat measurement position in this case, but the hand electrode component current electrode 16 and the toilet seat current voltage 19 are respectively shown in A and F of the body part shown in FIG. Since the voltage electrode 17 and the toilet seat voltage electrode 20 are configured to contact C and G of the body part, respectively, the current conduction path becomes a dotted line AF when seated on the toilet seat 11. Further, the potential measurement path measured by the hand electrode component voltage electrode 17 and the toilet seat voltage electrode 20 is a dotted line CG, and the inside of the body where the potential is actually measured is also between the potential measurement paths CG. For this reason, the internal body impedance that is the basis for measuring body fat is also the impedance between the potential measurement paths CG. Reference numeral 21 denotes a body fat percentage calculation device 18 that has been subjected to correlation equation correction accompanying the above-described change in measurement position.
[0023]
  As described above, by disposing the toilet seat current electrode 19 and the toilet seat voltage electrode 20 arranged so as to be in contact with the buttocks or thighs on the same left side of the seating surface of the toilet seat, the internal impedance of the body can be reduced. Since the measurement section is between the hand electrode component voltage electrode 17 and the toilet seat voltage electrode 20, the internal impedance of the body varies as the seating position moves back and forth and right and left.
[0024]
  Actually, a comparative experiment was conducted between a body fat measuring toilet apparatus having the configuration shown in FIG. 1 as an embodiment of the present invention and a body fat measuring toilet apparatus having a configuration shown in FIG. 3 as a comparative example. Under the condition that there is almost no change in the body fat percentage in the same person for the same time, this comparative experiment was carried out by five persons and re-sitting on the toilet seat portion 11 20 times to measure the body fat percentage. And the average value of each 20 data by the said body fat ratio measurement, 3 (sigma) was calculated, and the dispersion | variation (+/- 3 (sigma) / average value) was verified. In the configuration shown in FIG. 3 of the comparative example, the variation of 5 people was in the range of ± 4 to 6%. However, in the configuration shown in FIG. 1 of the present example, the variation of 5 people was ± 2 to 3%. This is a result of clearly demonstrating the effect of the present invention. The body fat measurement can assume many variability factors such as equipment, posture, various internal fluctuations, etc., but the configuration according to the present invention sufficiently suppresses the variation in body fat percentage due to the location factor of body fat measurement. It is thought that it was.
[0025]
  (Example 2)
  Next, FIG. 5 shows a perspective view of a body fat measurement toilet apparatus according to Embodiment 2 of the present invention.
[0026]
  In FIG. 5, an energizing toilet seat portion current electrode 24 for measuring body fat is disposed on the seating surface of the toilet seat portion 23 of the warm water flush toilet seat 22, and the main body case and toilet seat of the warm water flush toilet seat 22 are arranged. The main body case portion voltage electrode 25 is configured to be able to be taken in and out of the case main body between the portions. The main body case voltage electrode 25 is formed of an olefin elastomer having a volume resistivity of 5 × 10 −2 Ωcm and has sufficient flexibility. Reference numeral 26 denotes a hand electrode component having a structure that can be grasped by a hand, and is provided with a hand electrode component current electrode 27 and a hand electrode component voltage electrode 28. It is connected to the. Reference numeral 29 denotes a warm water flush toilet seat and an operation remote controller for body fat measurement, which are transmitted and received by infrared rays.
[0027]
  The toilet seat portion current electrode 24 and the hand electrode component portion current electrode 27 constitute a pair of current electrodes, and the main body case portion voltage electrode 25 and the hand electrode component portion voltage electrode 28 constitute a pair of voltage electrodes.TheConstitute.
[0028]
  Next, the operation and action will be described. Also in the present embodiment, the current conduction path formed by the pair of current electrodes is a path from the hand part to the left side of the buttocks or thighs, and the body case part voltage electrode 25 of the body case is protruded, so that the toilet seat When sitting on the part 23, the body case part voltage electrode 25 and the upper part of the starboard part are in contact with each other, and the measurement section of the internal body impedance measured by the voltage electrode 25 and the hand electrode component part voltage electrode 28 of the hand part is As in the first embodiment, since it is between the base of the hand and the left and right thighs, even if the seating position of the toilet seat fluctuates left and right, back and forth, the measurement section CE of the body internal impedance hardly changes, It is possible to improve the accuracy of body fat measurement.
[0029]
  Further, even if the current electrode and the voltage electrode arranged so as to be in contact with the buttocks or the thigh are formed so as to protrude from the toilet seat seating surface and the front of the toilet seat so as to be able to contact the thigh, the same effect can be obtained. be able to.
[0030]
  (Example 3)
  Next, FIG. 6 shows a perspective view of a body fat measurement toilet apparatus according to Embodiment 3 of the present invention.
[0031]
  In FIG. 6, cylindrical hand electrode constituent parts 31, 32 are attached from the left and right side surfaces of the main body case of the warm water flush toilet seat 30, and the hand electrode constituent parts 31, 32 are respectively connected to the hand part current electrode 33, the hand part. The partial voltage electrode 34 is wound and fixed. A toilet seat current electrode 36 and a toilet seat voltage electrode 37 are disposed on the left and right seating surfaces of the toilet seat 35. Reference numeral 38 denotes a warm water flush toilet seat and an operation remote controller for measuring body fat, which are transmitted and received by infrared rays.
[0032]
  Next, the operation and action will be described. FIG. 7 is a schematic diagram showing this body fat measurement position. The hand part current electrode 33 and the toilet seat part current electrode 36 are respectively connected to H and I of the body part shown in FIG. Since the electrode 37 is configured to contact J and K of the body part, the current conduction path is a dotted line HI and the potential measurement path is a dotted line JK. However, the inside of the body where the potential is actually measured is When the upper part and the lower part of the fuselage where the current conduction path and the voltage measurement path cross each other are denoted by L and M, respectively, it is between the dotted lines LM. For this reason, the body internal impedance that is the basis for body fat measurement is between the upper body L and the lower body M, and the body fat percentage does not fluctuate due to the influence of the contact position of the current electrode 4. Further, 39 is a calculation device for measuring the body internal impedance and calculating the body fat percentage, and similarly to the previous embodiment, calculates the body fat percentage by obtaining the body internal impedance between LMs by the four-terminal method. Therefore, the accuracy of the body fat percentage is greatly improved.
[0033]
  As described above, the hand current electrode 33 and the hand voltage electrode 34 arranged so as to be able to come into contact with the hand part are configured so as to be able to come into contact with the right hand and the left hand, respectively. By arranging the toilet seat portion current electrode 36 and the toilet seat portion voltage electrode 37 arranged so as to be in contact with each other on the left and right sides of the toilet seat seating surface, the measurement section of the body internal impedance to be measured is the body portion. Therefore, even if the grip of the hand changes or the seating position of the toilet seat fluctuates from side to side, back and forth, the body internal impedance measurement section LM is only the torso part, and the body fat measurement is almost unchanged. It is possible to improve the accuracy. In addition, according to this configuration, there is also an effect that the amount of fat around the waist, which is particularly anxious in body fat measurement, can be measured with accuracy, and in combination with other body parts, measurement of body fat distribution over further body details The correlation between the body fat percentage and the prevalence index is also enhanced. Furthermore, it is possible to set a high-frequency current for measurement for each part to further increase the accuracy.
[0034]
  Example 4
  Next, FIG. 8 shows a perspective view of a body fat measurement toilet apparatus according to Embodiment 4 of the present invention.
[0035]
  In FIG. 8, L-shaped handrail bars 41 and 42 made of stainless steel are installed from the left and right side surfaces of the main body case of the hot water washing toilet seat 40, and grips 43 and 44 made of low-resistance conductive resin are respectively provided at the tips. It is attached. A toilet seat current electrode 46 and a toilet seat voltage electrode 47 are disposed on the left and right seating surfaces of the toilet seat 45. In addition, 48 is a toilet bowl in which a warm water washing toilet seat 40 is installed.
[0036]
  Next, the operation and action will be described. Also in this embodiment, by using the grip portions 43 and 44 as voltage electrodes and current electrodes, the impedance inside the body measured by the current electrode 4 becomes a trunk portion, and the same high effect as in the third embodiment is obtained. It is what you play. Further, since the handrail bars 41 and 42 are made of stainless steel and have electrical continuity, the body fat can be measured by wiring the handrail bars inside the warm water washing toilet seat body. Furthermore, since the grip portions 43 and 44 are conductive resins, they do not feel cold like metal even when they are cold, measured, or gripped with hands.
[0037]
  (Example 5)
  Next, FIG. 9 shows a perspective view of a body fat measurement toilet apparatus according to Embodiment 5 of the present invention.
[0038]
  In FIG. 9, 49 is a toilet, and a toilet seat 49 is provided with a warm water toilet seat 50. The main body case 51 of the warm water flush toilet seat 50 is formed of a low-resistance conductive resin, and an electrode 54 is disposed below the recess 52 via an electrical insulating material 53. A toilet seat current electrode 56 and a toilet seat voltage electrode 57 are disposed on the left and right seating surfaces of the toilet seat 55.
[0039]
  Next, the operation and action will be described. Also in this embodiment, the body case 51 is seated on the surface of the toilet seat 55, the palm is brought into contact with the N portion of the body case 51, and the finger is brought into contact with the current electrode 54. By using an electrode, the impedance inside the body measured by the current electrode 4 does not vary depending on the sitting position as described in detail in the first embodiment, and further changes depending on the contact position and contact condition with the hand. Therefore, extremely high measurement accuracy is provided.
[0040]
  Next, the specifications of the current electrode or voltage electrode will be described. The electrode material is a toilet device and is generally made of stainless steel, which has good anti-rust properties, but it is made of a conductive paste even if the resin material is metal-plated. If it is low resistance, it may be formed of a resin material containing a conductive filler. As the conductive resin material containing the conductive filler, there are various types of conductive fillers such as carbon black, stainless fiber, stainless microfiber, and brass fiber, and the binder resin can be processed with a general plastic material. In addition, this conductive resin material can be used satisfactorily as an electrode for measuring body fat if it has a volume resistivity of preferably 10-1 Ωcm or less. Further, even if the electrode resistance is somewhat higher than this value, it can be easily realized by correcting this electrode resistance during measurement. By using the resin material containing this conductive filler, the outer shape of the molded product such as a case can be used as an electrode as described in the above embodiment without bothering the electrode. In addition to improving the performance and design, it is extremely effective in terms of safety because of the coldness of the metal electrode, which is particularly worrisome when it is cold, and metal burrs.
[0041]
  Furthermore, by forming the current electrode or voltage electrode with a material having flexibility in the direction in which the body contacts the current electrode or voltage electrode, the level of contact between the current electrode or voltage electrode and the body is increased to ensure high accuracy. The body fat can be measured, but the flexible material may be a material obtained by adding the above-mentioned various conductive fillers to a flexible material such as rubber or elastomer, and can be easily processed. Further, it is preferable that the electrode material and shape have a distance that changes by 5% or more in the contact direction with the body when the electrode and the body are contacted in body fat measurement. Further, by using an electrode made of a flexible material, the toilet seat and the toilet seat peripheral member can be easily arranged on the curved surface portion, and the degree of freedom in design is expanded.
[0042]
  As described above, the present invention is extremely effective in health management that improves the accuracy of body fat measurement, which is said to be correlated with the prevalence index, and can be realized with a simple electrode configuration. However, at least one of the buttocks or the thigh and the hand should be at least one of the current electrode and the thigh and the hand so that the body internal impedance hardly occurs due to the influence of the contact position of the current electrode or the voltage electrode for body fat measurement Any configuration may be used as long as the voltage electrode is arranged on the toilet seat or the toilet seat peripheral member so as to come into contact at different positions of each part of the body.
[0043]
【The invention's effect】
  As described above, according to the present invention, it is possible to suppress variation in body internal impedance due to the influence of the position of contact between the current electrode and the voltage electrode for body fat measurement and the body, and the measurement accuracy of the body fat measurement toilet device Can be increased.
[Brief description of the drawings]
FIG. 1 is a perspective view of a body fat measurement toilet apparatus according to a first embodiment of the present invention.
FIG. 2 is a schematic view showing a body fat measurement position of the body fat measurement toilet apparatus according to the first embodiment of the present invention.
FIG. 3 is a perspective view of a body fat measurement toilet device according to a comparative example of Example 1 of the present invention.
FIG. 4 is a schematic diagram showing a body fat measurement position of a body fat measurement toilet apparatus in a comparative example of Example 1 of the present invention.
FIG. 5 is a perspective view of a body fat measurement toilet apparatus according to a second embodiment of the present invention.
FIG. 6 is a perspective view of a body fat measurement toilet device according to a third embodiment of the present invention.
FIG. 7 is a schematic view showing a body fat measurement position of a body fat measurement toilet apparatus according to Embodiment 3 of the present invention.
FIG. 8 is a perspective view of a body fat measurement toilet device according to a fourth embodiment of the present invention.
FIG. 9 is a perspective view of a body fat measurement toilet apparatus according to a fifth embodiment of the present invention.
FIG. 10 is a perspective view of a conventional body fat measurement toilet device.
[Explanation of symbols]
  11, 23, 35, 45, 55, 3 Toilet seat
  12, 19, 24, 36, 46, 56, 4 Toilet seat current electrode (current electrode)
  13, 20, 37, 47, 57, 5 Toilet seat voltage electrode (voltage electrode)
  25 Main unit case voltage electrode (voltage electrode)
  16, 27 Hand electrode component current electrode (current electrode)
  17, 28 Hand electrode component voltage electrode (voltage electrode)
  18, 21, 39 Body fat percentage calculation device
  33, 7 Hand current electrode (current electrode)
  34, 8 Hand voltage electrode (voltage electrode)
  44 Grip part (current electrode)
  43 Grip part (voltage electrode)
  51 Body case (palm)
  54 Current electrode (finger)

Claims (8)

高周波電流を身体の臀部もしくは大腿部と手部との間に印加できるように配設してなる一対の電流電極と、
身体の臀部もしくは大腿部と手部に接触できるように配設してなる抵抗電位を測定する電位測定用の一対の電圧電極と、
前記電流電極と前記電圧電極により身体内部インピーダンスを測定し体脂肪率を算出する算出装置を
備え、
前記臀部もしくは大腿部に接触できるように配設してなる前記電流電極、及び前記電圧電極を便座着座面の左右各側のいずれか一方にそれぞれ配してなる体脂肪測定トイレ装置。
A pair of current electrodes arranged so that a high-frequency current can be applied between the buttocks or thigh of the body and the hand; and
A pair of voltage electrodes for measuring a potential for measuring a resistance potential arranged so as to be in contact with the buttocks or thigh and hand of the body;
A calculation device for measuring body internal impedance by the current electrode and the voltage electrode and calculating a body fat percentage,
A body fat measurement toilet device in which the current electrode and the voltage electrode arranged so as to be in contact with the buttocks or thighs are arranged on either the left or right side of the toilet seating surface .
高周波電流を身体の臀部もしくは大腿部と手部との間に印加できるように配設してなる一対の電流電極と、
身体の臀部もしくは大腿部と手部に接触できるように配設してなる抵抗電位を測定する電位測定用の一対の電圧電極と、
前記電流電極と前記電圧電極により身体内部インピーダンスを測定し体脂肪率を算出する算出装置を
備え、
前記臀部もしくは大腿部に接触できるように配設してなる前記電流電極、及び前記電圧電極を便座着座面及び臀部上部に接触できるように構成してなる便座後方部材のいずれか一方にそれぞれ配してなる体脂肪測定トイレ装置。
A pair of current electrodes arranged so that a high-frequency current can be applied between the buttocks or thigh of the body and the hand; and
A pair of voltage electrodes for measuring a potential for measuring a resistance potential arranged so as to be in contact with the buttocks or thigh and hand of the body;
A calculation device for measuring body internal impedance by the current electrode and the voltage electrode and calculating a body fat percentage;
Prepared,
Said current electrode composed by arranging so as to be in contact with the buttocks or thighs, and the respective distribution to one configuration to become toilet seat back component as the voltage electrode may make contact with the toilet seat seating surface and buttocks upper Body fat measuring toilet device.
前記臀部もしくは大腿部に接触できるように配してなる前記電流電極、及び前記電圧電極を便座着座面及び便座前方より突出し大腿部に接触できるように形成してなる請求項1または2に記載の体脂肪測定トイレ装置。 Said current electrodes formed by arranging so as to be in contact with the buttocks or thighs, and the voltage electrode in claim 1 or 2 formed comprising as to contact the seat seating surface and the projecting thigh from seat front The body fat measuring toilet apparatus as described. 前記手部に接触できるように配してなる前記電流電極、前記電圧電極を、右手及び左手のいずれか一方にそれぞれ接触できるように便座周辺に構成してなる握り部に配してなる請求項1からのいずれか1項に記載の体脂肪測定トイレ装置。 Said current electrodes formed by arranging so as to be in contact with the hand portion, the voltage electrode, formed by arranging the grip formed by structured around the toilet seat to be in contact respectively to one of the right and left claims The body fat measurement toilet apparatus according to any one of 1 to 3 . 前記手部に接触できるように配設してなる前記電流電極、及び前記電圧電極を便座後方部に構成してなるケース部材の左右各側のいずれか一方にそれぞれ配設してなる請求項1からのいずれか1項に記載の体脂肪測定トイレ装置。Composed by arranging so as to be in contact with the hand portion the current electrodes, and the voltage electrode formed by respectively arranged right and left in one of the side of the case member formed by constituting the seat rear portion according to claim 1 The body fat measurement toilet apparatus according to any one of items 1 to 3 . 前記手部に接触できるように配してなる前記電流電極及び前記電圧電極を、指部及び掌部のいずれか一方にそれぞれ接触できるように便座周辺部材に配設してなる請求項1からのいずれか1項に記載の体脂肪測定トイレ装置。 The current electrode and the voltage electrode formed by arranging so as to be in contact with the hand portion, claim 1 comprising by arranging the seat surround to allow respectively contact one of the fingers and the palm portion 3 The body fat measuring toilet apparatus according to any one of the above. 前記電流電極または前記電圧電極の少なくとも一つは導電性フィラーを含有した樹脂材料により形成してなる請求項1からのいずれか1項に記載の体脂肪測定トイレ装置。At least one body fat measuring the toilet apparatus according to any one of claims 1 obtained by forming a resin material containing a conductive filler 6 of the current electrodes or the voltage electrodes. 前記電流電極と前記電圧電極の少なくとも一つは身体が接触する方向に柔軟性を有する材料を備えた請求項1からのいずれか1項に記載の体脂肪測定トイレ装置。At least one body fat measuring the toilet apparatus according to any one of claims 1 to 7 with a material having a flexibility in a direction to contact the body of the current electrode and the voltage electrode.
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JP4985445B2 (en) * 2008-02-12 2012-07-25 株式会社デンソー Biological information measuring device
JP2011156215A (en) * 2010-02-02 2011-08-18 Denso Corp Electrode for biological signal and biological information measuring system
KR102212064B1 (en) 2013-12-06 2021-02-05 삼성전자주식회사 Method for providing health service and refrigerator therefor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0833613A (en) * 1994-07-26 1996-02-06 Yasuto Takeuchi Vital signal sampling and analyzing apparatus
JPH11347007A (en) * 1998-06-04 1999-12-21 Toto Ltd Toilet seat device
JP2000126088A (en) * 1998-10-23 2000-05-09 Aisin Seiki Co Ltd Body fat measuring toilet seat
JP2000333927A (en) * 1999-05-28 2000-12-05 Matsushita Electric Ind Co Ltd Adipometer
JP2001054509A (en) * 1999-08-18 2001-02-27 Matsushita Electric Ind Co Ltd Internal fat meter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0833613A (en) * 1994-07-26 1996-02-06 Yasuto Takeuchi Vital signal sampling and analyzing apparatus
JPH11347007A (en) * 1998-06-04 1999-12-21 Toto Ltd Toilet seat device
JP2000126088A (en) * 1998-10-23 2000-05-09 Aisin Seiki Co Ltd Body fat measuring toilet seat
JP2000333927A (en) * 1999-05-28 2000-12-05 Matsushita Electric Ind Co Ltd Adipometer
JP2001054509A (en) * 1999-08-18 2001-02-27 Matsushita Electric Ind Co Ltd Internal fat meter

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