JP6334907B2 - Scratch detection notification device with band - Google Patents
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- JP6334907B2 JP6334907B2 JP2013253819A JP2013253819A JP6334907B2 JP 6334907 B2 JP6334907 B2 JP 6334907B2 JP 2013253819 A JP2013253819 A JP 2013253819A JP 2013253819 A JP2013253819 A JP 2013253819A JP 6334907 B2 JP6334907 B2 JP 6334907B2
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Description
本発明は、アトピー性皮膚炎の患者等が腕や指に装着し、掻破行動を測定する装置に関し、更に詳細には、アトピー性皮膚炎の患者等が無意識に行う掻破行動を検知して警告を発したり、検知データを無線通信で外部機器に送信する機能を有する掻破検知通知装置に関する。 The present invention relates to an apparatus for measuring the scratching behavior of an atopic dermatitis patient or the like worn on an arm or finger, and more specifically, detecting and warning the scratching behavior unconsciously performed by an atopic dermatitis patient or the like. The present invention relates to a scratch detection notification device having a function of issuing a notification or transmitting detection data to an external device by wireless communication.
特許文献1には、人体に装着する小型軽量の肉伝導マイクロホンであって、人の動きに伴う装着ずれや脱落、雑音の混入などが生じにくく、体型等の個人差に対しても装着適応性の高い肉伝導マイクロホンの発明が開示されている。
該肉伝導マイクロホンは、皮膚表面に密着されて肉伝導音を伝播させる軟性部材からなる肉伝導音伝播部と、その肉伝導音を電気信号に変換するマイクロホンなどで構成される。
Patent Document 1 describes a small and light meat conduction microphone to be worn on a human body, which is unlikely to be worn out or dropped due to human movement, mixed with noise, etc., and is adaptable to individual differences such as body type. An invention for a meat conduction microphone having a high height is disclosed.
The meat conduction microphone is composed of a meat conduction sound propagation part made of a soft member that is in close contact with the skin surface and propagates the meat conduction sound, and a microphone that converts the meat conduction sound into an electric signal.
また、この肉伝導マイクロホンは、声帯、呼吸音、心臓や脈拍音など、生体内を伝導する音声を採取するが、外部ノイズや、装着に起因するノイズの収集を極力避けるための構造を工夫している。
しかし、特許文献1の先行技術は、人の掻破行動に伴い発生させる掻破音を計測対象としないため、アトピー性皮膚炎の患者が指先で患部を掻く動作に伴い発する音、振動などの計測用には不向きである。
In addition, this meat conduction microphone collects voices conducted in the living body such as vocal cords, breathing sounds, heart and pulse sounds, but devised a structure to avoid collecting external noise and noise caused by wearing as much as possible. ing.
However, since the prior art of Patent Document 1 does not measure the scratching sound generated by a person's scratching behavior, it is used for measuring sounds, vibrations, and the like that are generated when a patient with atopic dermatitis scratches the affected area with a fingertip. Not suitable for.
特許文献2には、人間を含む動物が特定の体動を実施するとき発生させる音や振動に着目し、これらが体内を伝導する音や振動(以下、体動音と記す)をマイクロホンを用いて採集し、予め磁気記録装置等に記憶した特定体動音の標準パターン信号と比較することにより、採集された体動音が特定体動音であるかどうかを判定する体動音測定装置と、その判定結果を出力装置を通じて外部に出力する発明が開示されている。
また、特許文献2には、人の腕に装着して掻破回数を計測して表示する体動検査装置の概念図も開示されているが、腕時計タイプの掻破検知通知装置の具体的な構成は開示されていない。
Patent Document 2 focuses on sounds and vibrations generated when animals including humans perform specific body movements, and uses a microphone to transmit sounds and vibrations (hereinafter referred to as body movement sounds) that are conducted through the body. A body motion sound measuring device that determines whether the collected body motion sound is a specific body motion sound by comparing with a standard pattern signal of the specific body motion sound collected and stored in advance in a magnetic recording device or the like An invention that outputs the determination result to the outside through an output device is disclosed.
Patent Document 2 also discloses a conceptual diagram of a body movement inspection device that is worn on a person's arm and measures and displays the number of scratches. A specific configuration of a wristwatch-type scratch detection notification device is also disclosed. Not disclosed.
人が行う掻破行動は通常、指、手を用いて実施される。従って、掻破行動に伴い発生する音や振動は、発生源に近い手や指に掻破検知通知装置のセンサを設置して観測することが、データの検出感度を確保する上で重要である。
しかし、センサを手や指に設置した場合、手や指は掻破行動とは関係ない様々な動作を行うので、この動作に随伴して手、指が周囲にある物に接触して発生させる衝撃音、変形音、摩擦音など様々なノイズをセンサが採集してしまう問題がある。
The scratching action performed by a person is usually performed using fingers and hands. Therefore, it is important for securing the data detection sensitivity to observe the sound and vibration generated by the scratching behavior by installing the sensor of the scratch detection notification device on the hand or finger close to the generation source.
However, when the sensor is installed on the hand or finger, the hand or finger performs various actions that are not related to the scratching behavior. There is a problem that the sensor collects various noises such as sound, deformation sound, and friction sound.
また、手首太さ、形状は人により様々で、掻破検知通知装置を多くの人々の手首に首尾よくフィットさせることは容易ではない。
さらに、手首に装着する掻破検知通知装置の形状やサイズは、人の自然な掻破行動を制約しない範囲で小型かつ軽量のものが望ましい。
ただし、センサ部のみを分離して手首に装着する形態では、センサが収集した体動音信号を検査装置本体に伝送する必要があり、ケーブルを用いた有線方式ではケーブル自体の断線や掻破行動の阻害が懸念される。
Further, wrist thickness and shape vary depending on the person, and it is not easy to fit the scratch detection notification device to the wrists of many people.
Furthermore, it is desirable that the shape and size of the scratch detection notification device attached to the wrist is small and light as long as the natural scratching behavior of a person is not restricted.
However, in the form of attaching only the sensor part to the wrist, it is necessary to transmit body motion sound signals collected by the sensor to the main body of the inspection device, and in the wired method using the cable, the cable itself is disconnected or scratched. There are concerns about inhibition.
センサ以外の装置構成要素を全て手首に装着する場合、装置全体の重量が増すため加速度の影響を受け易く、掻破行動以外の動作ノイズが混入する。
掻破検査装置の技術課題は、特許文献1や特許文献2など従来技術の組合せや転用だけでは容易には解決できない。
When all the device components other than the sensor are attached to the wrist, the weight of the entire device increases, so that it is easily affected by acceleration, and operation noise other than the scratching behavior is mixed.
The technical problem of the scratching inspection apparatus cannot be easily solved only by combining or diverting conventional techniques such as Patent Document 1 and Patent Document 2.
本発明は、人が就寝時や覚醒時において無意識に行う掻破行動等により、指や手に発生する掻破音を採集するバンド付き掻破検知通知装置であって、腕や指に装着して使用され、周囲のものと強く接触・摩擦してもこれらに起因するノイズを極限まで抑えることができ、しかも、外部からの耐電磁波ノイズにも優れ、計測データの信頼性を確実に保証できる掻破検知通知装置の提供を目的とする。 The present invention is a banded scratch detection notification device that collects scratching sounds generated on fingers and hands due to scratching behavior that is unconsciously performed when a person goes to sleep or wakes up, and is used by being worn on an arm or finger. Scratch detection notification that can suppress the noise caused by these to the limit even if it is in strong contact and friction with the surroundings, and also has excellent anti-electromagnetic noise from the outside, ensuring reliable measurement data The purpose is to provide a device.
請求項1に記載の発明は、計測対象者の腕または指に装着されて掻破行動を検知し、検知データを外部に通知する通信機能を有するバンド付掻破検知通知装置である。
計測対象者は、本バンド付掻破検知通知装置を手首または、指に装着して使用する。
また、本バンド付掻破検知通知装置は少なくともセンサ素子と、センサアンプと、AD変換ユニットと、データ処理ユニットと、無線ユニットと、アンテナと、警告部品と、電池と、筐体と、が第1樹脂でモールド一体化されて作られる。
The invention described in claim 1 is a banded scratch detection notification device that has a communication function that is worn on the arm or finger of a measurement subject, detects scratching behavior, and notifies the detection data to the outside.
The person to be measured wears this banded scratch detection notification device on the wrist or finger.
In addition, this banded scratch detection notification device includes at least a sensor element, a sensor amplifier, an AD conversion unit, a data processing unit, a wireless unit, an antenna, a warning component, a battery, and a casing. Made by resin mold integration.
これにより、本掻破検知通知装置では腕や指に装着されて振り回されたり、腕や指が外部物体に衝突した場合であっても、内部に実装される個々の部品類は一体に運動し、相対的な位置ズレを生じることはなく、人の動作に伴うノイズ発生を極小とすることができる。 Thereby, in this scratch detection notification device, even when the arm or finger is worn and swung, or even when the arm or finger collides with an external object, the individual components mounted inside move together, A relative positional shift does not occur, and the generation of noise associated with human movement can be minimized.
センサ素子は、圧電素子、加速度センサ、歪ゲージ、コンデンサマイクロホンの中から何れか1つが用途に応じて選択される。
センサ素子は、高剛性の筐体に、皮膚との対向面を除く5方向が包囲され、しかも筐体とは所定間隔を保ち、直接接触しない状態で柔軟性に富む第2樹脂にモールドされるので、腕や指が外部物体に接触しても伝導する衝撃が緩和され、機械的ノイズと電磁波ノイズの両面で、耐ノイズ性に優れた構成になっている。
As the sensor element, any one of a piezoelectric element, an acceleration sensor, a strain gauge, and a condenser microphone is selected according to the application.
The sensor element is molded in a highly flexible second resin that is surrounded by a highly rigid casing in five directions excluding the surface facing the skin, and that maintains a predetermined distance from the casing and is not in direct contact. Therefore, the impact conducted even when the arm or finger comes into contact with an external object is alleviated, and the structure is excellent in noise resistance in both mechanical noise and electromagnetic noise.
また、センサ素子は感圧面側も第2樹脂でモールドされるので、本バンド付掻破検知通知装置を計測対象者が腕または指に装着すると、センサ素子はモールド樹脂を挟んで感圧面が計測対象者の皮膚と対向し、しかも、第2樹脂が計測対象者の皮膚と密着するので、掻破行動により発生する体動音を高感度で収集することができる。 In addition, since the sensor element is also molded with the second resin on the pressure-sensitive surface side, when the measurement subject wears this banded scratch detection notification device on the arm or finger, the sensor element is measured by the pressure-sensitive surface with the mold resin in between. Since the second resin is in close contact with the skin of the person and in close contact with the skin of the person to be measured, body motion sounds generated by the scratching behavior can be collected with high sensitivity.
請求項2に記載の発明は、モールドに使用される第1樹脂がゴム硬度30〜80度のプラスチックであり、代表的にはシリコンゴムが使用される。また、第2樹脂にはゴム硬度5〜15のウレタンゴムあるいは、ゴム硬度5〜10度のシリコンゴムが使用される。ウレタンゴムには様々な種類があるが、人の皮膚に優しいウレタンゴムを使用し、また、シリコンゴムの場合も人の皮膚に優しいシリコンゴムを使用する。 In the second aspect of the present invention, the first resin used in the mold is a plastic having a rubber hardness of 30 to 80 degrees, and typically silicon rubber is used. The second resin is urethane rubber having a rubber hardness of 5 to 15 or silicon rubber having a rubber hardness of 5 to 10 degrees. There are various types of urethane rubber, but urethane rubber that is kind to human skin is used, and silicon rubber that is kind to human skin is also used for silicone rubber.
一般に、シリコンゴムと比較してウレタンゴムは肌に対する親和性が高く、センサ素子の感圧面に使用するモールド樹脂としてはウレタンゴムの方がより好ましい。また、ゴム硬度5〜15度と、低いゴム硬度範囲のウレタンゴムとすることで、計測対象者の腕や指に良好にフィットさせ、体動音を高感度で収集することができる。 In general, urethane rubber has a higher affinity for the skin than silicon rubber, and urethane rubber is more preferable as the mold resin used for the pressure-sensitive surface of the sensor element. In addition, by using urethane rubber having a rubber hardness range of 5 to 15 degrees and a low rubber hardness range, it is possible to fit the measurement subject's arm and fingers well and collect body motion sounds with high sensitivity.
請求項3に記載の発明は、電子部品等を実装する筐体に導電性材料が用いられる。導電性材料として金属、炭素繊維、導電性プラスチックなどを用いることができる。導電性材料に金属を採用する場合、ステンレス、チタンなどの人の皮膚に優しい金属を使用する。
また、筐体を対象者の手首または指の皮膚に直接接触させることで、外部からの電磁波ノイズを筐体で吸収させ、対象者の人体をアースとして逃がすことができる。これにより、耐電磁波ノイズ性に優れた信頼性の高いデータ採集を可能とした。
In the third aspect of the present invention, a conductive material is used for a housing for mounting an electronic component or the like. Metal, carbon fiber, conductive plastic, or the like can be used as the conductive material. When using a metal for the conductive material, use a metal that is gentle to human skin, such as stainless steel and titanium.
Further, by directly contacting the casing with the wrist or finger skin of the subject, electromagnetic wave noise from the outside can be absorbed by the casing, and the subject's human body can be released as ground. This enables highly reliable data collection with excellent electromagnetic noise resistance.
請求項4に記載の発明は、センサ素子とセンサアンプに加え、AD変換ユニットと、データ処理ユニットと、記無線ユニットとを、計測対象者の皮膚表面との対向方向を除く5方向について、筐体に包囲させる発明である。これにより、本掻破検知通知装置に実装される電子部品類は6方向中5方向を筐体により電磁シールドされ、残る1方向を人体により電磁シールドされるので、外部からの電磁波ノイズを確実に遮断することができる。 According to the fourth aspect of the present invention, in addition to the sensor element and the sensor amplifier, the AD conversion unit, the data processing unit, and the wireless unit are arranged in five directions except for the facing direction to the skin surface of the measurement subject. It is an invention that surrounds the body. As a result, the electronic components mounted on this scratch detection notification device are electromagnetically shielded by the housing in 5 out of 6 directions and electromagnetically shielded by the human body in the remaining 1 direction, thus reliably blocking electromagnetic noise from the outside. can do.
請求項5に記載の発明は、電子部品の実装された基板が無線通信機能を有し、無線で送受信を行う。センサ素子により検出される音や振動のアナログデータは、本バンド付掻破検知通知装置内でA/D変換され、データ処理ユニットで様々なデータ処理がなされ、これらデータ処理結果は警告部品により警告として発せられたり、アンテナを介し外部機器に無線送信される。 According to a fifth aspect of the present invention, the board on which the electronic component is mounted has a wireless communication function, and transmits and receives wirelessly. The sound and vibration analog data detected by the sensor element is A / D converted in this banded scratch detection notification device, and various data processing is performed in the data processing unit, and these data processing results are alerted by warning parts. Emitted or transmitted wirelessly to an external device via an antenna.
従って、本バンド付掻破検知通知装置は、内蔵する警告装置にデータ処理結果を伝達するだけでなく、外部に設置されるコンピュータなどの機器にも様々な処理レベルのデータを送信したり、逆に外部機器から制御指令などのデータを入手することができる。 Therefore, this banded scratch detection notification device not only transmits the data processing result to the built-in warning device, but also transmits data of various processing levels to an externally installed device such as a computer. Data such as control commands can be obtained from external equipment.
請求項5に記載の発明は、掻破検知通知装置に実装される無線ユニットとアンテナが無線通信によるデータの送受信機能を備え、腕に装着して使用される腕時計タイプのリストバンド付掻破検知通知装置である。本バンド付掻破検知通知装置を腕時計と同じ要領で腕に装着すると、ゴム硬度の低いウレタンゴムが手首形状の異なる個々人に対し、良好にフィットし、体内を伝導する音や振動を高感度に収集するので、信頼性の高いデータを採集できる。また、腕時計タイプであるので、装着が簡単、確実で、安定して掻破振動や掻破音を収集することができる。 The invention according to claim 5 is a wristwatch type wristband detection notification device with a wristband which is mounted on an arm and used by a wireless unit and an antenna mounted on the scratch detection notification device having a data transmission / reception function by wireless communication. It is. When this banded scratch detection notification device is worn on the wrist in the same manner as a wristwatch, urethane rubber with low rubber hardness fits well to individuals with different wrist shapes and collects sound and vibration conducted through the body with high sensitivity. Therefore, highly reliable data can be collected. Moreover, since it is a wristwatch type, it is easy and reliable to wear and can stably collect scratching vibrations and scratching sounds.
アトピー性皮膚炎をはじめとする慢性皮膚炎症性疾患は、就寝中や覚醒中であっても無意識に掻破行動を行う。掻破行為は治療面からは好ましくなく、本人に自覚させて停止させる必要がある。本バンド付掻破検知通知装置では機械的ノイズ、電磁波ノイズの少ない信頼性の高い掻破データを取集できるので、採集されるデータについて、掻破行動パターンかどうかを確実に判定し、掻破行動パターンと認定した場合、本人に警告して掻破行為を停止させたり、小さい子供の場合は無線通信回線を介して親に知らせ、親が子供の掻破行為を停止させることができる。更には、診掻破行為データの全て、或いは一部について無線通信回線を介して病院のサーバーに登録させることで、診断や治療に使用することなどができる。 Chronic skin inflammatory diseases, such as atopic dermatitis, perform unintentional scratching behavior even when sleeping or awake. The action of scratching is not preferable from the viewpoint of treatment, and it is necessary to make the person aware and stop it. This banded scratch detection notification device can collect highly reliable scratching data with little mechanical noise and electromagnetic noise, so it is sure that the collected data is a scratching behavior pattern and certified as a scratching behavior pattern. If this happens, the person can be warned to stop the scratching action, or in the case of a small child, the parent can be notified via a wireless communication line, and the parent can stop the child's scratching action. Furthermore, all or a part of the examination action data can be registered in a hospital server via a wireless communication line to be used for diagnosis or treatment.
以下、本発明の実施の形態として一実施例を図1〜図11に基づいて説明する。
本発明の腕装着型掻破検知通知装置の構成と製作方法について、図1に示す腕装着型掻破検知通知装置の断面図を用いて説明する。
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
A configuration and a manufacturing method of the arm wearing type scratch detection notification device of the present invention will be described with reference to a cross-sectional view of the arm wearing type scratch detection notification device shown in FIG.
電磁遮蔽機能を有するステンレス製筐体19の略中央部にセンサプリアンプ12が筐体19から絶縁されて実装される。また、筐体19の手首側内部にセンサ素子11がセンサプリアンプ12に配線されて、ウレタンゴム(第2樹脂)20でポッティングされる。筐体19の上面には、絶縁基板に表面実装されたAD変換ユニット13と、データ処理ユニット14と、無線ユニット15が実装配線される。無線ユニット15には無線通信用のアンテナ16の一端が取付けられ、アンテナ16の他端は筐体19に設けられた穴から、筐体19と絶縁されて、筐体外部に引き出される。 The sensor preamplifier 12 is mounted insulated from the housing 19 at a substantially central portion of the stainless steel housing 19 having an electromagnetic shielding function. Further, the sensor element 11 is wired to the sensor preamplifier 12 inside the wrist side of the casing 19 and potted with urethane rubber (second resin) 20. On the upper surface of the housing 19, an AD conversion unit 13, a data processing unit 14, and a wireless unit 15 that are surface-mounted on an insulating substrate are mounted and wired. One end of an antenna 16 for wireless communication is attached to the wireless unit 15, and the other end of the antenna 16 is insulated from the housing 19 through a hole provided in the housing 19 and pulled out of the housing.
また、警告部品17を筐体19の右側に、電池18を筐体19の左側に配置して、全体の重心バランスが中央部になるよう配置する。また、これら全ての部品は一体に組み立てられた後、別途準備されたモールド用金型に収納され、モールド(第2樹脂)21で一体にモールドされる。モールド21の材料には、主剤に触媒を加えて硬化させる硬質シリコンゴムを用い、ポッティング方法により作成する。このモールド21の左右両端部には、一対のバンド22を連結するための連結環25を設ける。
なお、腕装着型掻破検知通知装置10に実装される部品類の全体配置については、装置全体の重心が装置の中心軸上に近づくよう各部品を配置した。
In addition, the warning component 17 is arranged on the right side of the casing 19 and the battery 18 is arranged on the left side of the casing 19 so that the balance of the center of gravity as a whole is at the center. Further, after all these parts are assembled together, they are housed in a separately prepared mold for molding and are integrally molded with a mold (second resin) 21. The material of the mold 21 is made of hard silicone rubber that is cured by adding a catalyst to the main agent, and is made by a potting method. Connection rings 25 for connecting the pair of bands 22 are provided at both left and right ends of the mold 21.
In addition, about the whole arrangement | positioning of the components mounted in the arm mounting | wearing-type scratch detection notification apparatus 10, each component was arrange | positioned so that the gravity center of the whole apparatus might approach on the central axis of an apparatus.
なお、本モールド21による一体化作業では、筐体19の下面と、ウレタンゴム20の下面はマスキングテープを施して、ポッティング作業を行い、ポッティング樹脂が硬化後マスキングテープを除去し、筐体19の下面と、ウレタンゴム20の下面を露出させる。これにより、腕装着型掻破検知通知装置10を手首に装着させたとき、筐体19の下面と、ウレタンゴム20の下面を手首の皮膚に確実に接触させることができる。 In the integration work by the mold 21, masking tape is applied to the lower surface of the casing 19 and the lower surface of the urethane rubber 20 to perform potting. After the potting resin is cured, the masking tape is removed, and the casing 19 The lower surface and the lower surface of the urethane rubber 20 are exposed. Thereby, when the wrist-worn-type scratch detection notification device 10 is attached to the wrist, the lower surface of the housing 19 and the lower surface of the urethane rubber 20 can be reliably brought into contact with the skin of the wrist.
一対のバンド22は、それぞれモールド21の左右それぞれ2箇所に設けられた連結環25に連結用穴を位置合わせし、連結ピン24を貫通させて一体化させる。一対のバンド22には面ファスナー構造が設けられ、面ファスナーを重ね合わせて結合させる。面ファスナーをベルト構造、ボタン構造などに置き換えてもよい。 The pair of bands 22 is formed by aligning connecting holes with connecting rings 25 provided at two positions on the right and left sides of the mold 21 and penetrating the connecting pins 24 for integration. The pair of bands 22 is provided with a hook-and-loop fastener structure, and the hook-and-loop fasteners are overlapped and joined. The hook-and-loop fastener may be replaced with a belt structure or a button structure.
図4は組立の完了した腕装着型掻破検知通知装置10を正面側斜め上方からの外観図で、図5は裏面から外観図である。腕装着型掻破検知通知装置10は図2に示すように、対象者の腕23に装着、固定されて使用される。
図3に指に装着して使用する指装着型掻破検知通知装置30を示す。指装着型掻破検知通知装置30は、指31に装着して使用され、基本構造は腕装着型掻破検知通知装置10と同じである。しかし、指31に装着して使用するため小型化が図られ、また、バンド22に相当する部分は、通常の指輪と同様リングとすることができる。
FIG. 4 is an external view of the arm-mounted scratch detection / notification device 10 that has been assembled, as viewed from diagonally upward on the front side, and FIG. 5 is an external view from the back side. As shown in FIG. 2, the arm-worn-type scratch detection notification device 10 is used by being worn and fixed on the arm 23 of the subject.
FIG. 3 shows a finger-worn scratch detection notification device 30 that is worn on a finger and used. The finger wearable scratch detection notification device 30 is used by being worn on a finger 31 and has the same basic structure as the arm wearable scratch detection notification device 10. However, since it is mounted on the finger 31 and used, the size can be reduced, and the portion corresponding to the band 22 can be a ring like a normal ring.
次に、ウレタンゴム(第2樹脂)20のゴム硬度を5〜15度とした理由について、説明する。
2液混合タイプ、室温硬化型、ゴム硬度5、10、15、20の4種類の市販のゴムウレタンゴムについて試作を行い、次の(1)、(2)評価を行った。
また、ゴム硬度5、10、15、20の4種類の市販のシリコンゴムについても次の(1)、(2)の評価を行った。
(1)耐ズレ性試験:腕に装着したときの滑り難さを感覚的に相対評価する(感応試験)。
(2)検出感度試験:掻破振動や掻破音の検出性能を相対評価する(定性評価)。
これらは何れも主観的評価になるが評価結果は表1の通りであった。
Next, the reason why the rubber hardness of the urethane rubber (second resin) 20 is set to 5 to 15 degrees will be described.
Four types of commercially available rubber urethane rubbers of a two-component mixed type, a room temperature curable type, and a rubber hardness of 5, 10, 15, and 20 were prototyped, and the following (1) and (2) evaluations were performed.
In addition, the following evaluations (1) and (2) were performed on four types of commercially available silicon rubbers having rubber hardnesses of 5, 10, 15, and 20.
(1) Slip resistance test: Relatively evaluate the difficulty of slipping when worn on the arm (sensitivity test).
(2) Detection sensitivity test: Relative evaluation of the detection performance of scratching vibration and scratching sound (qualitative evaluation).
All of these were subjective evaluations, but the evaluation results are shown in Table 1.
表1から次が結論づけられる。
(1) ウレタンゴムでは、耐ズレ特性と検出感度の両面から、ゴム硬度5〜15度の範囲が好適である。
(2) シリコンゴムの場合は、耐ズレ特性と検出感度の両面からゴム硬度5〜10度が好適である。
ウレタンゴムとシリコンゴムの違いは、ウレタンゴムの表面にはタック性があり、皮膚に良く馴染むため、シリコンゴムに比べ広いゴム硬度範囲で耐ズレ性や検出感度に優れた特性が得られる。
また、掻破振動や掻破音の検出感度は、振動の伝搬特性を考慮すると、人の皮膚のゴム硬度に類似するゴム硬度の材料が好適と考えられる。人の皮膚のゴム硬度は約10度であり、前記好適としたゴム硬度範囲に含まれる。
From Table 1, the following can be concluded.
(1) In the case of urethane rubber, a rubber hardness in the range of 5 to 15 degrees is preferable in terms of both misalignment resistance and detection sensitivity.
(2) In the case of silicon rubber, a rubber hardness of 5 to 10 degrees is preferable from the viewpoints of anti-slip properties and detection sensitivity.
The difference between urethane rubber and silicon rubber is that the surface of the urethane rubber has tackiness and is well adapted to the skin. Therefore, characteristics superior in displacement resistance and detection sensitivity can be obtained in a wider rubber hardness range than silicon rubber.
Moreover, considering the vibration propagation characteristics, it is considered that a material having a rubber hardness similar to the rubber hardness of human skin is suitable for the detection sensitivity of the scratching vibration and scratching sound. The rubber hardness of human skin is about 10 degrees, and is included in the preferred rubber hardness range.
次に、筐体に実装した部品のモールド樹脂による固定効果について説明を行う。
図6は、図1に示す腕装着型掻破検知通知装置10について、モールド樹脂1によるモールドの有無による耐機械衝撃特性の違いを比較した試験データである。X軸が時間で、Y軸はノイズ波形の波高値である。Aはモールド樹脂1なし、Bがモールド樹脂ありの場合である。モールド樹脂によるモールド効果により衝撃に起因するノイズが低減されており、モールド樹脂により耐機械的衝撃特性の向上することが確認できる。
Next, the effect of fixing the component mounted on the housing by the mold resin will be described.
FIG. 6 shows test data comparing the difference in mechanical shock resistance depending on whether or not the mold resin 1 is molded with respect to the arm wearing type scratch detection notification device 10 shown in FIG. The X axis is time, and the Y axis is the peak value of the noise waveform. A is the case without mold resin 1 and B with mold resin. The noise caused by the impact is reduced by the molding effect of the molding resin, and it can be confirmed that the mechanical impact resistance is improved by the molding resin.
次に、外来電磁波ノイズに対するシールド効果について説明を行う。
外来電磁波ノイズに対する評価は、筐体19によるシールド構造の一部を除去した図7に示す簡易シールド構造の簡易シールド構造腕装着型掻破検知通知装置27と、図1に示す本発明のシールド構造の腕装着型掻破検知通知装置10と、図8に示す本発明に内部シール部材26を追加した2層シールド構造の2層シールド構造腕装着型掻破検知通知装置28の3種類について実施した。
Next, the shielding effect against external electromagnetic noise will be described.
The evaluation for the external electromagnetic noise is based on the simple shield structure arm-worn type scratch detection notification device 27 of the simple shield structure shown in FIG. 7 from which a part of the shield structure by the casing 19 is removed, and the shield structure of the present invention shown in FIG. Three types were implemented: an arm-mounted scratch detection notification device 10 and a two-layer shield arm-mounted scratch detection notification device 28 having a two-layer shield structure in which an internal seal member 26 is added to the present invention shown in FIG.
図9は簡易シールド構造腕装着型掻破検知通知装置27についての出力波形のスペクトル図であり、X軸が周波数、Y軸がスペクトル強度である。図10は腕装着型掻破検知通知装置10の出力波形のスペクトル図で、図9同様X軸が周波数、Y軸がスペクトル強度である。
図9,10について、センサ出力に対する背景雑音の大きさを相対評価すると、簡易シールド構造腕装着型掻破検知通知装置27のシール構造に比較して、本発明の腕装着型掻破検知通知装置10のシールド構造では背景雑音が大幅に低減されていることが確認できる。
FIG. 9 is a spectrum diagram of an output waveform for the simple shield structure arm wearing type scratch detection notification device 27, where the X-axis is the frequency and the Y-axis is the spectrum intensity. FIG. 10 is a spectrum diagram of an output waveform of the arm-worn-type scratch detection / notification device 10, and the X axis is the frequency and the Y axis is the spectrum intensity as in FIG.
9 and 10, when the magnitude of the background noise relative to the sensor output is evaluated relative to the seal structure of the simple shield-structure arm-mounted scratch detection notification device 27, the arm-mounted scratch detection notification device 10 of the present invention has the following structure. It can be confirmed that the background noise is greatly reduced in the shield structure.
また、図11に示す2つの出力波形は、Aが腕装着型掻破検知通知装置10の出力波形のスペクトルであり、Bが2層シールド構造腕装着型掻破検知通知装置28の出力波形のスペクトルである。X軸が時間で、Y軸はノイズ波形の波高値である。図11から
Bの電磁波ノイズ波高値はAに比べ更に低減されており、2層シールド構造を採用することで、外来電磁波ノイズを更に遮断できることが明らかである。
In addition, in the two output waveforms shown in FIG. 11, A is the spectrum of the output waveform of the arm wearing type scratch detection notification device 10, and B is the spectrum of the output waveform of the two-layer shield structure arm wearing type scratch detection notification device 28. is there. The X axis is time, and the Y axis is the peak value of the noise waveform. The electromagnetic wave noise peak value of FIG. 11B is further reduced compared with A, and it is clear that the external electromagnetic noise can be further blocked by adopting the two-layer shield structure.
皮膚の痒みは、アトピー性皮膚炎など慢性皮膚炎症性疾患だけでなく、様々な病気治療に使用される薬剤の副作用として現れることがある。本発明のバンド付掻破検知通知装置は掻破行為を容易に検知できるので、慢性皮膚炎症性疾患に限定されることなく、様々な医療分野や日常生活でも活用できる。 Itching may appear as a side effect of drugs used to treat various diseases, as well as chronic skin inflammatory diseases such as atopic dermatitis. The banded scratch detection notification device of the present invention can easily detect a scratching action, and thus can be used in various medical fields and daily life without being limited to chronic skin inflammatory diseases.
10 腕装着型掻破検知通知装置
11 センサ素子
12 センサプリアンプ
13 AD変換ユニット
14 データ処理ユニット
15 無線ユニット
16 アンテナ
17 警告部品
18 電池
19 筐体
20 ウレタンゴム
21 モールド
22 バンド
23 腕
24 連結ピン
25 連結環
26 内部シール部材
27 簡易シールド構造腕装着型掻破検知通知装置
28 2層シールド構造腕装着型掻破検知通知装置
30 指装着型掻破検知通知装置
31 指
DESCRIPTION OF SYMBOLS 10 Arm wearing type scratch detection notification apparatus 11 Sensor element 12 Sensor preamplifier 13 AD conversion unit 14 Data processing unit 15 Wireless unit 16 Antenna 17 Warning component 18 Battery 19 Case 20 Urethane rubber 21 Mold 22 Band 23 Arm 24 Connection pin 25 Connection ring 26 Internal seal member 27 Simple shield structure arm wearing type scratch detection notification device 28 Two-layer shield structure arm wearing type scratch detection notification device 30 Finger wearing type scratch detection notification device 31 Finger
Claims (5)
手首または、指に装着して使用され、
少なくともセンサ素子と、センサアンプと、AD変換ユニットと、データ処理ユニットと、無線ユニットと、アンテナと、警告部品と、電池と、筐体と、が第1樹脂でモールド一体化されており、
前記センサ素子が圧電素子、加速度センサ、歪ゲージ、コンデンサマイクロホンの何れか1つであり、
前記センサ素子が、感圧面を前記計測対象者の皮膚表面に対向させて前記筐体内に筐体とは所定間隔を保ち、直接接触しない状態で柔軟性のゴム硬度5〜15度のウレタンゴムまたは、ゴム硬度5〜10度のシリコンゴムである第2樹脂でモールドされ、
前記筐体が導電体材料で構成され、少なくとも前記センサ素子と前記センサアンプが前記計測対象者の皮膚表面との対向方向を除く5方向を前記筐体に包囲されていることを特徴とする掻破検知通知装置。 A banded scratch detection notification device that is worn on the arm or finger of a measurement subject and detects scratches and notifies the outside.
Used on wrist or finger,
At least the sensor element, the sensor amplifier, the AD conversion unit, the data processing unit, the wireless unit, the antenna, the warning component, the battery, and the housing are molded and integrated with the first resin,
The sensor element is any one of a piezoelectric element, an acceleration sensor, a strain gauge, and a condenser microphone;
The sensor element has a pressure sensitive surface facing the measurement subject's skin surface, maintains a predetermined distance from the housing within the housing, and is a urethane rubber having a flexible rubber hardness of 5 to 15 degrees without direct contact. , Molded with a second resin that is silicon rubber with a rubber hardness of 5 to 10 degrees ,
The casing is made of a conductive material, and at least the sensor element and the sensor amplifier are surrounded by the casing in five directions excluding the facing direction of the skin surface of the measurement subject. Detection notification device.
The wireless unit and the antenna have a communication function of transmitting and receiving wirelessly, and the banded scratch detection notification device is a wristwatch type used by being worn on an arm. The banded scratch detection notification device according to claim 1.
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