JP3843467B2

JP3843467B2 - Treatment device controller

Info

Publication number: JP3843467B2
Application number: JP11551195A
Authority: JP
Inventors: 美幸山内; 拓生嶋田; 康裕梅景
Original assignee: Panasonic Corp; Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Corp; Panasonic Holdings Corp
Priority date: 1995-05-15
Filing date: 1995-05-15
Publication date: 2006-11-08
Anticipated expiration: 2021-11-08
Also published as: JPH08299462A

Description

【０００１】
【産業上の利用分野】
本発明は電位治療器、電子治療器、低周波治療器、高周波治療器、マイクロ波治療器及びマッサージ器などの治療器の制御装置に関するものである。
【０００２】
【従来の技術】
従来筆者らは、電位治療ベッドや電位治療椅子などの人体の接触する部位に振動検知手段を配設し、振動信号から在不在を判定する在不在判定手段を備え、この在不在判定手段の判定結果に基づいて、動作モードを開始または終了する信号出力し治療器を制御する治療器制御装置を提供してきた。例えば図４に示すように、１は電位治療ベッド、２は振動検知手段である。これは電位治療ベッド１の人体の支持部の人体が接触する面の側に蛇行させて配設してある。１７は治療器制御ユニットで、１８は在不在判定手段、１９は随意操作手段で、ここにはＯＮスイッチやＯＦＦスイッチ、時間設定スイッチなどが設置されている。２０は治療器動作制御手段である。これは在不在判定手段１８の判定結果や随意操作手段１９に基づいて治療の制御を行う。この場合、在不在判定手段１４の判定結果が在であれば随意操作手段１９によらずに治療を開始し、不在の判定結果であれば随意操作手段１９によらずに治療を終了していた。
【０００３】
【発明が解決しようとする課題】
しかしながら、上記従来技術の治療器制御装置では次のような課題があった。すなわち、治療の開始、終了の制御は出来るが、治療しようとする対象部位が真に治療の必要性があるかどうか不明瞭な場合があり、また、治療した時の生体の生理状態をフィードバックし治療の効果によって治療器を制御することは出来なかった。
【０００４】
本発明の第１の目的は、治療を受ける人体の治療器との接触面の振動を検知して、接触部が人体のどの部位かを判定して、判定結果に応じて治療器の制御を行い、同時に治療による生理状態の変化をフィードバックすることのできる治療器制御装置を提供することにある。
【０００５】
第２の目的は、治療中に人体の位置が変化しても、その変化時を検知し、人体位置の変化に追随して治療も変化させるという制御のできる治療器制御装置を提供することにある。
【０００６】
第３の目的は、人体検知手段を振動検知手段とすることで、治療器の人体支持部にくみこんで、治療器制御装置を提供することにある。
【０００７】
第４の目的は、人体検知手段を振動検知手段として人体の振動に基づいて身体部位の判定を行うための判定方法を提供することにある。
【０００８】
第５の目的は、振動検知手段を、生体情報検知手段に兼用して、治療による生理状態の変化を、生体の振動信号の周期性の変化をとおして判定する判定方法を提供することにある。
【０００９】
第６の目的は、振動検知手段を、体動検知手段に兼用して、人体の体動を振動を検知することから判定する判定方法を提供することにある。
【００１０】
【課題を解決するための手段】
第１の目的を達成するために、治療を受ける人体の治療器との接触面において、人体より生じる複数の振動成分を含む信号を検知する人体検知手段と、前記人体検知手段の複数の振動成分を心拍成分と呼吸成分とに分離した出力をもとに治療を受ける人体の部位を特定する部位特定手段と、人体の治療部位の心拍数を生体情報として検知してその周期性の有無を判定する生体情報検知手段と、前記生体情報検知手段の出力に基づいて治療部位の生理状態を判定する生理状態判定手段と、前記部位特定手段の特定結果と前記生理状態判定手段の判定結果に基づいて治療器を制御する制御手段とを備えたものである。
【００１１】
第２の目的を達成するために、制御手段は、治療を受ける人体の体動を検知する体動検知手段を備えたものである。
【００１２】
第３の目的を達成するために、人体検知手段は、治療器の人体支持部に配設された圧電素子を有する振動検知手段と、前記振動検知手段の出力に基づき複数の周波数帯成分ごとのパワー値を算出する振動解析手段を備えたものである。
【００１３】
第４の目的を達成するために、振動解析手段は、心拍信号の周波数帯の振動成分を抽出する第１の抽出手段と、呼吸信号の周波数帯の振動成分を抽出する第２の抽出手段と、前記第１の抽出手段と前記第２の抽出手段の出力結果を比較する演算手段とからなり、前記演算手段の出力に基づいて人体部位を特定するようにしたものである。
【００１４】
第５の目的を達成するために、生体情報検知手段は、人体検知手段の振動検知手段を兼用して心拍を検出し、前記心拍の周期性を解析して周期の安定または不安定を出力する周期性解析手段とからなるものである。
【００１５】
第６の目的を達成するために、体動検知手段は、人体検知手段の振動検知手段を兼用し、前記振動検知手段の出力を積分する積分手段を有し、前記積分手段の出力を予め設定された閾値と比較して体動の有無を判定するものである。
【００１６】
【作用】
治療を受けようとして治療器に着くと、人体検知手段が人体の治療器との接触面において人体よりより生じる複数の振動成分を含む信号を検出し、人体検出手段の複数の振動成分を心拍成分と呼吸成分とに分離した出力より、人体のどの部位が治療部位にあたるのかを部位特定手段が特定し、制御手段は特定された人体部位に対してどの様な治療を行うか制御する。また、生体情報検知手段によって、治療部位の心拍数の周期性の有無を判定し、生理状態判定手段によって状態の変化を制御手段へフィードバックし、制御手段は、生理状態判定手段の判定結果に基づいて治療の継続、継続中止などの治療器制御を行う。
【００１７】
人が体動を行い体動検知手段が体動を検知すると、人体の位置がずれるおそれが大きいので、体動検知手段では制御手段へ体動信号を送出し、制御手段は、再度部位特定手段の特定を行うように治療器を制御する。
【００１８】
治療器の人体支持部に人体検知手段としての振動検知手段を配設し、治療器に着いた人体の微小な身体振動を検知し、この出力信号に基づき複数の周波数帯成分ごとのパワー値を算出する振動検知手段を備えて、人体の部位を特定する。
【００１９】
振動解析手段は心拍信号の周波数帯の振動成分を抽出する第１の抽出手段と、呼吸信号の周波数帯の振動成分を抽出する第２の抽出手段を設けており、演算手段において前記第１の抽出手段と第２の抽出手段の出力結果に基づいて、人体部位を特定するように部位特定手段へ比較結果を送出する。
【００２０】
人体検知手段と兼用して、振動検知手段を生体情報検知手段としても用いて心拍を検出し、人体の微小振動を検知し、周期性解析手段を用いて心拍の周期的な生体信号から、生理状態を判定する情報とする。
【００２１】
人体検知手段と兼用して、振動検知手段を体動検知手段として用いて、人体の寝返りなどの大きな振動を検知し、積分手段によって振動信号を積分して、前記積分手段の出力を予め設定された閾値と比較して体動の有無を判定して体動が生じたことを判定する。
【００２２】
【実施例】
以下本発明の第１の実施例を説明する。図１に本発明の第１の実施例のブロック図を、図２には同装置の外観図を示す。図１において、１は電位治療ベッド、２は振動検知手段である。この振動検知手段２は人体検知手段４と生体情報検知手段５と体動検知手段６とを兼用している。ここではテープ状または同軸ケーブル状に整形された圧電素子からなる。これがここでは、電位治療ベッドの人体支持部となるマットレス３の表布裏面に蛇行させて配設してある。人体検知手段４は、振動検知手段２と振動解析手段７は第１の抽出手段としての第１のフィルター８、第２の抽出手段としてのフィルター９、演算手段１０からなる。１１は部位特定手段で、１２は制御手段である。生体情報検知手段５は振動検知手段２と周期性解析手段１３を備えており、１４は生理状態判定手段である。体動検知手段６は振動検知手段２と積分手段１５を備えている。１６は信号処理部と制御部を内蔵した制御ユニットである。
【００２３】
上記構成による作用を以下に示す。ここで振動検知手段２として用いた圧電素子は、ポリフッ化ビニリデン（ＰＶＤＦ）等の高分子圧電材料を薄膜状にし両面に可とう性の電極膜を付着させテープ状、または同軸状に成形されたものである。これは、一枚の布に縫い込んであり、マットレス３の層構造の一番上部のカバー下に配設されている。外見から、また、触感によっても、振動検知手段２が配設されていることは使用者には認識されない構造となっている。
【００２４】
次に、この振動検知手段２によって検知された信号について説明する。人が電位治療ベッド１上に横たわると入床時の体動や寝返り、心臓の拍動や呼吸による身体の細かな体動等によって生じた振動で圧電素子が変形をうけ圧電効果により電圧が発生し、信号を出力する。ここで検知された振動信号は、まず人体検知手段４の振動解析手段７に送られ、第１のフィルター８、第２のフィルター９によって、各々心拍信号成分と呼吸信号成分に分離される。分離された各成分は演算手段１０へ送られ、ＦＦＴにより各成分毎のパワー値を算出され、「心拍成分Ｐｈｒ／呼吸成分Ｐｒｅｓｐ」のパワー比を演算する。演算結果のパワー値は、部位特定手段１１へ送られる。部位特定手段１１では次のような部位特定のための判定式１１−（１）、（２）、（３）をもち、この判定式より、人体検知手段４が検知したのが人体のどの部位にあたるのかを特定する。すなわち、人体部位別に心拍信号成分と、呼吸信号成分の出力比率が異なることを原理として用いている。
【００２５】
図３をもちいて説明する。図３の（ａ）は心拍成分、（ｂ）は呼吸成分を抽出した後の演算手段によって算出されたパワー値である。縦軸がパワー値，横軸に周波数を示す。（１）は胸部、（２）は腰部、（３）は足部より検出された振動信号によるものとする。例えば、人体の胸部からは、呼吸活動による肺や横隔膜の運動による影響を大きくうけた振動信号が検出可能であるので、図３の（１）−（ｂ）のように大きなパワー値が得られる場合と、（３）−（ｂ）のように小さなパワー値しか得られない場合もある。心拍成分は血液の循環系の運動によって発生する振動であり全身的に検出可能であるので、図３の（ａ）のように比較的全身からある程度のパワー値は得られる。このことより、次の判定式を用いて部位判定をおこなう。
【００２６】
判定式１１−（１）Ｐｈｒ／Ｐｒｅｓｐ＜０．５→胸部
１１−（２）０．５＜Ｐｈｒ／Ｐｒｅｓｐ＜１．５→腰部
１１−（３）１．５＜Ｐｈｒ／Ｐｒｅｓｐ →足部部位特定手段１１によって部位を特定すると、制御手段１２では部位別の適切な治療方法が記録されており、治療器へ治療方法に関する制御信号ＳＩＧを出力する。
【００２７】
また、部位毎に検出される各成分のパワー値の絶対値が異なることに注目した判定式を用いてもよい。演算手段１０で「呼吸成分の周波数のパワー値＋心拍成分の周波数のパワ
ー値」を算出し、次のような状態判定を行う。例えば、演算結果が予め設定された設定値よりも小さければ、振動検知手段の配設された人体接触部に生体信号がなく、「実際には治療器の人体接触部に人体が接触していない」ということも判定できる。よって、この時、制御手段１２では、治療器の動作を停止するという制御を行うことが出来る。
【００２８】
一方で、生体情報手段５では、振動検知手段２によって検知された振動信号を周期性解析手段１３によって周期性解析をおこなう。周期性解析結果は生理状態判定手段１４に送られ、０．５〜２Ｈｚの範囲でピーク周波数を検出し心拍数として算出し、心拍が安定したかどうか、早すぎたり遅すぎたりしないかを判定する。また、一定時間内にはっきりとした周期性が認められない場合は不整脈として解析する。生理状態判定手段１４では治療開始からの判定結果の経過を出力し、制御手段１２はその経過に基づいて治療の継続、中止を制御する。
【００２９】
また、その一方で、体動検知手段６では、振動検知手段２が検知した信号を積分手段１５によって積分し、予め設定された閾値と比較し、閾値以上の積分値が算出されると体動として制御手段１２へ信号を出力する。就寝者が治療中に寝返りなどの体動を起こしたとする。図３に示すように、振動検知手段２で振動を検知して出力する電圧は図３の上図のようになり、そのとき積分手段１５によって出力される積分値は、安静時は小さいが、体動時では体動の大きさに応じて大きくなる。姿勢変化を生じるような大きな体動が起こると閾値以上の積分値が算出される。判定結果は制御手段１２へ送られ、判定結果が体動であれば制御手段１２ではそれまでの制御設定をリセットし、再度部位特定手段１１の特定結果を参照して治療器の制御を行う。例えば、体動の生起によってそれまでは部位判定が腰部であり、制御手段１２から腰部治療にふさわしい治療制御を行っていたが、体動判定手段６で、体動と判定され、治療器の制御設定がリセットされたとする。部位特定手段１１によって部位の特定が行われ、結果が足部であると出力される。制御手段１２では、足部にあわせて治療方法に変更するよう制御したり、この治療器においては足部は治療しない設定であれば治療を中止するというように治療器を制御する。
【００３０】
上記作用により、次のような効果が得られる。治療器上の人体の部位を特定して治療方法を制御するので、部位毎に最適な治療方法を用いることができる。同時に生理状態の変化をフィードバックすることができるので治療の効果に応じた治療器の制御を行うことができる。
【００３１】
また、体動が生じたことがわかり、姿勢変化をとらえて姿勢変化後には変化後にあわせた治療を行うことができるので、治療中の人は姿勢を規制されることなく自由な姿勢で治療を受けられるし、治療の精度も向上する。
【００３２】
また、人体検知手段４に振動検知手段２を用いることで、治療器の人体支持部に取り付けることが出来、外観的にも従来のものと変わりなく、使用者に違和感を与えることなく使用されるような構成ができる。
【００３３】
また、振動解析手段７は心拍成分と呼吸成分を抽出できるような構成なので、人体部位特定手段１１は人体の胸部、腰部、足部を判別し特定することができる。
【００３４】
また、生体情報検知手段５に振動解析手段２を兼用し、周期性解析手段１３を設けることによって、人体検知手段４と信号検出部を共有し、簡易な構成で低コストで同装置を実現することができる。また生体情報のうち周期性のあるもの、もしくは無いものについて、この実施例においては心拍数であるが、生理状態の変化を知ることができる。
【００３５】
また、体動検知手段６に振動解析手段２を兼用し、積分手段１５を設けることによって
、人体検知手段４と信号検出部を共有し、簡易な構成で低コストで同装置を実現することができる。
【００３６】
以上説明したように、本発明の実施例の治療器制御装置は、治療器上の人体の部位を特定して治療方法を制御するので、部位毎に最適な治療方法を用いることができる。同時に生理状態の変化をフィードバックすることができるので治療の効果に応じた治療器の制御を行い治療効果を向上させることができる。
【００３７】
また、姿勢変化をとらえて姿勢変化後には変化後にあわせた治療を行うことができるので、治療中の人は長時間にわたる治療の間にも姿勢を規制されることなく自由な姿勢で治療が受けられ、治療効果も向上する。
【００３８】
また、人体検知手段に振動検知手段を用いることで、治療器の人体支持部に取り付けることが出来、外観的にも従来のものと変わりなく、使用者に違和感を与えることなく使用できる。
【００３９】
また、振動解析手段は心拍成分と呼吸成分を抽出できるような構成なので、人体の部位によって異なる振動発生特性に基づいて、人体部位特定手段は検知された信号のパターンから人体の部位を特定することができる。
【００４０】
また、生体情報検知手段に振動解析手段を兼用し、周期性解析手段を設けることによって、人体検知手段と信号検出部を共有し、簡易な構成で低コストで同装置を実現することができ、したがって生体情報のうち周期性のあるもの、もしくは無いものについて、生理状態の変化を知ることができる。
【００４１】
また、体動検知手段に振動解析手段を兼用し、積分手段を設けることによって、人体検知手段と信号検出部を共有し、簡易な構成で低コストで同装置を実現することができる。
【００４２】
【発明の効果】
以上説明したように、本発明の治療器制御装置は、治療器と人体の接触部の振動を検出して治療器上の人体の部位を特定して治療方法を制御するので、部位毎に最適な治療方法を用いることができる。同時に生理状態の変化をフィードバックすることができるので治療の効果に応じた治療器の制御を行い治療効果を向上させることができる。
【図面の簡単な説明】
【図１】本発明の第１の実施例の治療器制御装置のブロック図
【図２】同装置の様子を示す平面図
【図３】同装置の演算手段による演算出力の特性図
【図４】従来の治療器制御装置のブロック図
【符号の説明】
２振動検知手段
４人体検知手段
５生体情報検知手段
６体動検知手段
７振動解析手段
８第１の抽出手段
９第２の抽出手段
１０演算手段
１１部位特定手段
１２制御手段
１３周期性解析手段
１４生理状態判定手段
１５積分手段[0001]
[Industrial application fields]
The present invention relates to a control device for a treatment device such as an electric potential treatment device, an electronic treatment device, a low frequency treatment device, a high frequency treatment device, a microwave treatment device, and a massage device.
[0002]
[Prior art]
Conventionally, the authors have provided vibration detection means at a site where the human body comes into contact, such as an electric potential treatment bed or electric potential treatment chair, and provided presence / absence determination means for determining presence / absence based on vibration signals. Based on the results, a therapeutic device control apparatus for outputting a signal for starting or ending an operation mode and controlling the therapeutic device has been provided. For example, as shown in FIG. 4, 1 is an electric potential treatment bed and 2 is a vibration detection means. This is meanderingly arranged on the side of the human body support portion of the potential treatment bed 1 that comes into contact with the human body. Reference numeral 17 denotes a treatment device control unit, 18 is presence / absence determination means, 19 is optional operation means, and an ON switch, an OFF switch, a time setting switch, and the like are provided here. Reference numeral 20 denotes a treatment device operation control means. This controls the treatment based on the determination result of the presence / absence determination means 18 and the optional operation means 19. In this case, if the determination result of the presence / absence determination unit 14 is present, the treatment is started without using the optional operation unit 19, and if the determination result is absence, the treatment is ended without using the optional operation unit 19. .
[0003]
[Problems to be solved by the invention]
However, the conventional treatment device control apparatus has the following problems. In other words, although the start and end of treatment can be controlled, it may be unclear whether the target site to be treated really needs treatment, and the physiological state of the living body at the time of treatment is fed back. The treatment device could not be controlled by the effect of treatment.
[0004]
The first object of the present invention is to detect the vibration of the contact surface with the treatment device of the human body to be treated, determine which part of the human body the contact portion is, and control the treatment device according to the determination result. It is an object of the present invention to provide a treatment device control apparatus capable of performing and simultaneously feeding back a change in physiological state due to treatment.
[0005]
A second object of the present invention is to provide a treatment device control apparatus capable of detecting the change of the position of the human body during treatment and detecting the time of the change and changing the treatment in accordance with the change of the position of the human body. is there.
[0006]
A third object is to provide a treatment device control device by using a human body detection means as a vibration detection means so as to be embedded in a human body support part of a treatment device.
[0007]
A fourth object is to provide a determination method for determining a body part based on vibration of a human body using a human body detection unit as a vibration detection unit.
[0008]
A fifth object is to provide a determination method in which a vibration detection unit is also used as a biological information detection unit to determine a change in a physiological state due to treatment through a change in periodicity of a vibration signal of a living body. .
[0009]
A sixth object is to provide a determination method in which the vibration detection means is also used as the body movement detection means to determine the body movement of the human body from the detection of vibration.
[0010]
[Means for Solving the Problems]
To achieve the first object, the contact surface between the human body treatment device to be treated, and the human body detection means for detecting a signal including a plurality of vibration component resulting from the human body, a plurality of vibration components of said human body detection means Based on the output separated into heart rate component and respiratory component, the part specifying means to specify the part of the human body to be treated, and the heart rate of the human treatment part is detected as biological information and the presence or absence of the periodicity is determined a biological information detecting means for a physiological condition determining means for determining the physiological state of the treatment site on the basis of the output of the biological information detecting unit, based on the determination result of the specific results with the physiological condition determining means of the site specific means And a control means for controlling the treatment device.
[0011]
In order to achieve the second object, the control means includes a body motion detection means for detecting the body motion of the human body to be treated.
[0012]
In order to achieve the third object, the human body detection means includes a vibration detection means having a piezoelectric element disposed on a human body support portion of a treatment device, and a plurality of frequency band components based on the output of the vibration detection means . The vibration analysis means for calculating the power value is provided.
[0013]
In order to achieve the fourth object, the vibration analysis means includes a first extraction means for extracting a vibration component in the frequency band of the heartbeat signal , and a second extraction means for extracting the vibration component in the frequency band of the respiratory signal. The calculation unit is configured to compare the output results of the first extraction unit and the second extraction unit, and the human body part is specified based on the output of the calculation unit.
[0014]
In order to achieve the fifth object, the biological information detection means also detects a heartbeat by using the vibration detection means of the human body detection means, analyzes the periodicity of the heartbeat, and outputs a stable or unstable period. It consists of periodicity analysis means.
[0015]
In order to achieve the sixth object, the body motion detection means also has an integration means that integrates the vibration detection means of the human body detection means, integrates the output of the vibration detection means, and presets the output of the integration means The presence or absence of body movement is determined by comparison with the threshold value .
[0016]
[Action]
When arriving at the treatment device to receive treatment, the human body detection means detects a signal including a plurality of vibration components generated from the human body at the contact surface of the human body treatment device, and the plurality of vibration components of the human body detection means are detected as heart rate components. Based on the output separated into the respiratory component , the part specifying means specifies which part of the human body corresponds to the treatment part, and the control means controls what kind of treatment is performed on the specified human part. Further, the biological information detection means determines whether or not the heart rate of the treatment site is periodic, the physiological state determination means feeds back a change in state to the control means, and the control means is based on the determination result of the physiological state determination means. The treatment device is controlled to continue and stop treatment.
[0017]
If a person moves and the body motion detection means detects the body motion, the human body position is likely to be shifted. Therefore, the body motion detection means sends a body motion signal to the control means, and the control means again sends the part specifying means. The treatment device is controlled so as to perform identification.
[0018]
Vibration detection means as a human body detection means is arranged on the human body support part of the treatment device, detects minute body vibrations of the human body attached to the treatment device, and based on this output signal, the power value for each of a plurality of frequency band components is calculated. A vibration detecting means for calculating is provided to identify a part of the human body.
[0019]
The vibration analysis means includes a first extraction means for extracting a vibration component in the frequency band of the heartbeat signal and a second extraction means for extracting a vibration component in the frequency band of the respiration signal. The calculation means includes the first extraction means. Based on the output results of the extraction means and the second extraction means, the comparison result is sent to the part specifying means so as to specify the human body part.
[0020]
Be combined with a human body detection means, the vibration detection means detects the heartbeat also be used as the biometric information detecting means detects a small vibration of the human body, from the periodic biological signals heart beats with periodicity analysis unit, This is information for determining the physiological state.
[0021]
Using the vibration detection means as the body motion detection means, which is also used as the human body detection means, detects a large vibration such as turning over the human body, integrates the vibration signal by the integration means, and the output of the integration means is preset. The presence or absence of body movement is determined by comparing with the threshold value, and it is determined that body movement has occurred.
[0022]
【Example】
The first embodiment of the present invention will be described below. FIG. 1 shows a block diagram of a first embodiment of the present invention, and FIG. 2 shows an external view of the apparatus. In FIG. 1, 1 is an electric potential treatment bed and 2 is a vibration detection means. The vibration detection means 2 serves as the human body detection means 4, the biological information detection means 5, and the body movement detection means 6. Here, it consists of a piezoelectric element shaped into a tape shape or a coaxial cable shape. Here, it is meanderingly disposed on the back surface of the mattress 3 that serves as a human body support portion of the electric potential treatment bed. The human body detection unit 4 includes a vibration detection unit 2 and a vibration analysis unit 7, which include a first filter 8 as a first extraction unit, a filter 9 as a second extraction unit, and a calculation unit 10. 11 is a part specifying means, and 12 is a control means. The biological information detection means 5 includes a vibration detection means 2 and a periodicity analysis means 13, and 14 is a physiological state determination means. The body motion detection unit 6 includes a vibration detection unit 2 and an integration unit 15. Reference numeral 16 denotes a control unit incorporating a signal processing unit and a control unit.
[0023]
The effect | action by the said structure is shown below. Here, the piezoelectric element used as the vibration detecting means 2 was formed into a tape shape or a coaxial shape by making a polymer piezoelectric material such as polyvinylidene fluoride (PVDF) into a thin film shape and attaching a flexible electrode film on both surfaces. Is. This is sewn into a piece of cloth and is placed under the top cover of the layer structure of the mattress 3. The appearance of the vibration detection means 2 is not recognized by the user, either by appearance or by touch.
[0024]
Next, a signal detected by the vibration detection means 2 will be described. When a person lies on the electric potential treatment bed 1, the piezoelectric element is deformed by vibrations caused by body movement or turning over at the time of bed entry, fine movement of the body due to heart beat or breathing, etc., and voltage is generated due to the piezoelectric effect. And output a signal. The vibration signal detected here is first sent to the vibration analysis means 7 of the human body detection means 4, and is separated into a heartbeat signal component and a respiration signal component by the first filter 8 and the second filter 9, respectively. Each separated component is sent to the calculation means 10, and the power value of each component is calculated by FFT, and the power ratio of “heart rate component Phr / respiration component Presp” is calculated. The power value of the calculation result is sent to the part specifying means 11. The part specifying unit 11 has the following determination formulas 11- (1), (2), and (3) for specifying the part. From this determination formula, the human body detection unit 4 detects which part of the human body. Identify whether this is the case. That is, the principle is that the output ratios of the heartbeat signal component and the respiratory signal component are different for each human body part.
[0025]
This will be described with reference to FIG. 3A shows the heart rate component, and FIG. 3B shows the power value calculated by the calculation means after extracting the respiratory component. The vertical axis shows the power value and the horizontal axis shows the frequency. It is assumed that (1) is the chest, (2) is the waist, and (3) is the vibration signal detected from the foot. For example, since a vibration signal greatly affected by the movement of the lungs and diaphragm due to respiratory activity can be detected from the human chest, a large power value can be obtained as shown in (1)-(b) of FIG. In some cases, only a small power value can be obtained as in (3)-(b). Since the heart rate component is vibration generated by the movement of the blood circulation system and can be detected systemically, a certain level of power value can be obtained from the whole body as shown in FIG. Thus, the part determination is performed using the following determination formula.
[0026]
Determination Formula 11- (1) Phr / Presp <0.5 → chest
11- (2) 0.5 <Phr / Presp <1.5 → waist
11- (3) 1.5 <Phr / Presp → When a part is specified by the foot part specifying means 11, an appropriate treatment method for each part is recorded in the control means 12, and a control signal related to the treatment method is transmitted to the treatment device. SIG is output.
[0027]
Moreover, you may use the determination formula which noticed that the absolute value of the power value of each component detected for every site | part differs. The calculation means 10 calculates “the power value of the frequency of the respiratory component + the power value of the frequency of the heartbeat component”, and performs the following state determination. For example, if the calculation result is smaller than a preset value, there is no biological signal in the human body contact portion where the vibration detection means is disposed, and “the human body is not actually in contact with the human body contact portion of the treatment device. Can also be determined. Therefore, at this time, the control means 12 can perform control to stop the operation of the treatment device.
[0028]
On the other hand, the biological information means 5 performs periodicity analysis on the vibration signal detected by the vibration detection means 2 by the periodicity analysis means 13. The periodicity analysis result is sent to the physiological state determination means 14 to detect the peak frequency in the range of 0.5 to 2 Hz and calculate it as a heart rate to determine whether the heart rate is stable or not too early or too late. To do. If no clear periodicity is observed within a certain period of time, the arrhythmia is analyzed. The physiological state determination means 14 outputs the progress of the determination result from the start of treatment, and the control means 12 controls the continuation and stop of the treatment based on the progress.
[0029]
On the other hand, in the body motion detection means 6, the signal detected by the vibration detection means 2 is integrated by the integration means 15, and compared with a preset threshold value. A signal is output to the control means 12 as follows. Suppose that a sleeping person causes body movements such as turning over during treatment. As shown in FIG. 3, the voltage output by detecting the vibration by the vibration detecting means 2 is as shown in the upper diagram of FIG. 3. At that time, the integral value output by the integrating means 15 is small at rest, During body movement, it increases according to the magnitude of body movement. When a large body motion that causes a change in posture occurs, an integral value equal to or greater than a threshold value is calculated. The determination result is sent to the control means 12, and if the determination result is a body movement, the control means 12 resets the control settings so far, and again controls the treatment device with reference to the specific result of the site specifying means 11. For example, due to the occurrence of body movement, the region determination has been performed on the lumbar region, and the control means 12 has performed treatment control suitable for the lumbar region treatment. However, the body movement determination means 6 determines that the body movement has occurred and controls the treatment device. Suppose the settings are reset. The part is specified by the part specifying means 11 and the result is output as a foot. The control means 12 controls the treatment device so that the treatment method is changed in accordance with the foot portion, or the treatment device is stopped if the treatment device is set not to treat the foot portion.
[0030]
The following effects are acquired by the said effect | action. Since the treatment method is controlled by specifying the part of the human body on the treatment device, the optimum treatment method can be used for each part. At the same time, a change in physiological state can be fed back, so that the treatment device can be controlled in accordance with the effect of treatment.
[0031]
In addition, it can be seen that body movement has occurred, and after the change in posture, it can be treated after the change, so that the person being treated can be treated in a free posture without being restricted. It will be received and treatment accuracy will be improved.
[0032]
Moreover, by using the vibration detection means 2 for the human body detection means 4, it can be attached to the human body support part of the treatment device and is used without giving the user a sense of incongruity in appearance. It can be configured as follows.
[0033]
Further, since the vibration analysis means 7 is configured to extract the heart rate component and the respiratory component, the human body part specifying means 11 can discriminate and specify the chest, waist, and foot of the human body.
[0034]
Moreover, the vibration analysis means 2 is also used as the biological information detection means 5 and the periodicity analysis means 13 is provided, so that the human body detection means 4 and the signal detection unit are shared, and the apparatus is realized with a simple configuration and low cost. be able to. In addition, regarding the biological information having periodicity or not, which is the heart rate in this embodiment, it is possible to know a change in physiological state.
[0035]
Further, the body motion detection means 6 is also used as the vibration analysis means 2 and the integration means 15 is provided, so that the human body detection means 4 and the signal detection unit can be shared, and the apparatus can be realized with a simple configuration at low cost. it can.
[0036]
As described above, since the treatment device control apparatus according to the embodiment of the present invention controls the treatment method by specifying the portion of the human body on the treatment device, the optimum treatment method can be used for each portion. At the same time, the change in the physiological state can be fed back, so that the treatment effect can be controlled by controlling the treatment device according to the treatment effect.
[0037]
In addition, since posture changes can be captured and treatment can be performed after the posture change, the person undergoing treatment can receive treatment in a free posture without being restricted during long-term treatment. The therapeutic effect is also improved.
[0038]
Further, by using the vibration detection means as the human body detection means, it can be attached to the human body support portion of the treatment device, and can be used without giving the user a sense of incongruity in appearance.
[0039]
In addition, since the vibration analysis means is configured to extract the heart rate component and the respiratory component, the human body part specifying means specifies the human body part from the detected signal pattern based on the vibration generation characteristics that vary depending on the human body part. Can do.
[0040]
In addition, by combining the vibration analysis means with the biological information detection means and providing the periodicity analysis means, the human body detection means and the signal detection unit can be shared, and the apparatus can be realized at a low cost with a simple configuration. Therefore, it is possible to know a change in physiological state of biological information with or without periodicity.
[0041]
In addition, the vibration analysis means is also used as the body motion detection means, and the integration means is provided, so that the human body detection means and the signal detection unit can be shared, and the apparatus can be realized with a simple configuration and low cost.
[0042]
【The invention's effect】
As described above, the treatment device control apparatus of the present invention detects the vibration of the contact portion between the treatment device and the human body, identifies the human body portion on the treatment device, and controls the treatment method. Various treatment methods can be used. At the same time, the change in the physiological state can be fed back, so that the treatment effect can be controlled by controlling the treatment device according to the treatment effect.
[Brief description of the drawings]
FIG. 1 is a block diagram of a treatment device control apparatus according to a first embodiment of the present invention. FIG. 2 is a plan view showing the state of the apparatus. FIG. 3 is a characteristic diagram of calculation output by calculation means of the apparatus. ] Block diagram of a conventional treatment device controller [Explanation of symbols]
2 vibration detection means 4 human body detection means 5 biological information detection means 6 body motion detection means 7 vibration analysis means 8 first extraction means 9 second extraction means 10 calculation means 11 site identification means 12 control means 13 periodicity analysis means 14 Physiological condition determination means 15 Integration means

Claims

The human body detecting means for detecting a signal including a plurality of vibration components generated from the human body on the contact surface with the treatment device of the human body to be treated, and the plurality of vibration components of the human body detecting means are separated into a heartbeat component and a respiratory component A part specifying means for specifying a part of a human body to be treated based on the output; a biological information detecting means for detecting the heart rate of the treatment part of the human body as biological information and determining the presence or absence of the periodicity; and the biological information Physiological state determination means for determining the physiological state of the treatment site based on the output of the detection means, and control means for controlling the treatment device according to the identification result of the region identification means and the determination result of the physiological state determination means Treatment device control device.

The treatment device control apparatus according to claim 1, wherein the control means includes body movement detection means for detecting a body movement of a human body to be treated.

The human body detection means includes vibration detection means having a piezoelectric element disposed on a human body support portion of a treatment device, and vibration analysis means for calculating a power value for each of a plurality of frequency band components based on an output of the vibration detection means. The treatment device control apparatus according to claim 1 or 2.

The vibration analysis means includes a first extraction means for extracting a vibration component in the frequency band of the heartbeat signal , a second extraction means for extracting a vibration component in the frequency band of the respiratory signal, the first extraction means, and the first extraction means. 4. The treatment device control apparatus according to claim 3, further comprising a calculation means for comparing output results of the two extraction means, wherein a human body part is specified based on the output of the calculation means.

Biometric information detecting means detects the heartbeat also serves as a vibration detection means of the human body detection means, and a periodicity analysis means for analyzing the period of stable or unstable analyzing the periodicity of the heart rate claim 1 The treatment device control device according to any one of claims 1 to 4 .

The body motion detection means also has an integration means that integrates the vibration detection means of the human body detection means, integrates the output of the vibration detection means, and compares the output of the integration means with a preset threshold value. therapy apparatus control device of any one of claims 2 to determine the presence or absence 5.