JP5715951B2 - バイオmemsセンサ及び装置ならびにその方法 - Google Patents
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Description
全体のレゾネータQ−ファクタは以下のとおり与えられる:
Claims (26)
- 対象に埋め込み可能な埋め込み型ハードウェア装置に取り付けられたまたは一体化されたひずみセンサ装置を用いる前記埋め込み型ハードウェア装置の変化を監視する方法であって、
前記ひずみセンサ装置は、基板と、該基板の上に配置されたコンデンサ誘電体としての誘電体と、該誘電体の上に配置された少なくとも1つの導電コイルと、該誘電体と該導電コイルから成りひずみ計として機能するレゾネータを含んでおり、
前記誘電体は、前記埋め込み型ハードウェア装置がひずみを受けるときにひずみを受ける固体材料で形成され、
前記基板と前記誘電体と前記導電コイルは、生物学的対象に埋め込まれる生体親和性のあるひずみセンサ装置として構成され、
前記レゾネータは、内蔵電源なしで誘電的に電力が供給されると共に、ひずみセンサ装置の方向に向けられた交番磁気フィールドまたは電磁気フィールドに応じて前記レゾネータの共振周波数で電磁波を反射するようになっており、
前記共振周波数は、前記埋め込み型ハードウェア装置により前記レゾネータに加えられるひずみに対応してシフトするようになっているものであり、
前記方法は以下のステップを備えている:
期間中の異なる時点で前記交番磁気フィールドまたは前記電磁気フィールドを前記ひずみセンサ装置の方向に向けることによって前記レゾネータに誘電的に電力を供給するステップ;
前記期間中の異なる時点で前記埋め込み型ハードウェア装置がひずみを受けるときにひずみを受ける前記レゾネータから反射された電磁波を受信するステップ;
前記期間中の異なる時点で受信された前記反射された電磁波に基づいて前記レゾネータの共振周波数のシフトを判定するステップ;及び
前記期間中の前記レゾネータの共振周波数の判定されたシフトに基づいて前記埋め込み型ハードウェア装置のひずみの一時的変化を判定するステップ。 - 前記レゾネータの共振周波数を、前記受信された前記レゾネータから反射された電磁波をスペクトルアナライザに入力することによって判定する共振周波数判定ステップを備え、前記レゾネータは、荷重なしで50 MHz乃至 7 GHzの範囲の共振周波数を有するように構成されている請求項1の方法。
- 前記埋め込み型ハードウェア装置のひずみの一時的変化は、前記埋め込み型ハードウェア装置のひずみ−周波数校正を用いて判定される請求項1の方法。
- 前記埋め込み型ハードウェア装置の表面曲げひずみを監視するステップをさらに備えている請求項1〜3の何れか1項の方法。
- 前記埋め込み型ハードウェア装置は骨折固定プレートを備え、前記ひずみセンサ装置は前記骨折固定プレートの表面に取り付けられている請求項1〜4の何れかの方法。
- 対象に埋め込み可能な埋め込み型ハードウェア装置に取り付けられたまたは一体化されて、前記埋め込み型ハードウェア装置に加えられたひずみを監視するため用いられるひずみセンサ装置であって、
基板と、
前記基板の上に配置されたコンデンサ誘電体としての誘電体と、
前記誘電体の上に配置された少なくとも1つの導電コイルと、
前記誘電体と前記導電コイルから成りひずみ計として機能するレゾネータを含んでおり、
前記誘電体は、前記埋め込み型ハードウェア装置がひずみを受けるときにひずみを受ける固体材料で形成され、
前記基板と前記誘電体と前記導電コイルは、生物学的対象に埋め込まれる生体親和性のあるひずみセンサ装置として構成され、
前記レゾネータは、内蔵電源なしで誘電的に電力が供給されると共に、ひずみセンサ装置の方向に向けられた交番磁気フィールドまたは電磁気フィールドに応じて前記レゾネータの共振周波数で電磁波を反射するようになっており、
前記共振周波数は、前記埋め込み型ハードウェア装置により前記レゾネータに加えられるひずみに対応してシフトするようになっているひずみセンサ装置。 - 前記基板はフレキシブルテープとして構成されている請求項6のひずみセンサ装置。
- 前記ひずみセンサ装置は、前記基板と前記誘電体との間で前記基板及び前記誘電体に接触する導電層をさらに備えている請求項6又は7のひずみセンサ装置。
- 前記誘電体は窒化シリコンから構成され、前記導電コイルはゴールドから構成されている請求項6〜8の何れかのひずみセンサ装置。
- 前記レゾネータはメタマテリアルから構成されている請求項6〜9の何れかのひずみセンサ装置。
- 前記導電コイルは、らせん、分割リング、または入れ子式分割リング形状の1つを有している請求項6〜10の何れかのひずみセンサ装置。
- 前記らせん形状は少なくとも2つの旋回を有する連続長を有している請求項11のひずみセンサ装置。
- 前記入れ子式分割リング形状は、内側正方形及び外側正方形を備え、前記外側正方形は第1の割れ目を有すると共に前記内側正方形は第2の割れ目を有し、前記第1の割れ目は、前記第2の割れ目を有する前記内側正方形の長さに相対する前記第2の正方形の長さに沿っている請求項11のひずみセンサ装置。
- 入れ子式分割リング構造のアレイをさらに備えている請求項13のひずみセンサ装置。
- 前記入れ子式分割リング構造は、共通のベースサイドを有し、しかし異なる高さを有する複数の長方形を有し、それぞれの長方形は上記ベースサイドに相対するギャップを有している請求項11のひずみセンサ装置。
- 導電コイルのアレイをさらに備えている請求項6のひずみセンサ装置。
- 前記導電コイルのアレイは少なくとも2つの異なるコイル形状を備えている請求項16のひずみセンサ装置。
- 前記レゾネータは吊り下げ式のレゾネータ構造を有している請求項6〜17の何れかのひずみセンサ装置。
- 前記導電コイルは三重構造を備えており、前記三重構造の各レゾネータは、長方形らせんコイルレゾネータ、円形らせんコイルレゾネータ、吊り下げ式レゾネータ、または分割リングレゾネータの少なくとも1つである請求項6〜18の何れかのひずみセンサ装置。
- 前記レゾネータが、荷重なしで50 MHz乃至7 GHz の範囲の共振周波数を有している請求項6〜19の何れかのひずみセンサ装置。
- 前記ひずみセンサ装置が、前記埋め込み型ハードウェア装置と共に前記生物学的対象に埋め込み可能である請求項6〜20の何れかのひずみセンサ装置。
- 前記埋め込み型ハードウェア装置が骨折固定プレートを備えている請求項21のひずみセンサ装置。
- 装置の監視システムであって、
前記装置が、請求項21に記載の前記埋め込み型ハードウェア装置と前記ひずみセンサ装置を含んでおり、前記埋め込み型ハードウェア装置に前記ひずみセンサ装置が取り付けられてまたは一体化されている一方、
前記ひずみセンサ装置に電力を供給する電磁気フィールドを発生するように構成された電磁気フィールドジェネレータと、
前記ひずみセンサ装置が期間中の異なる時点で電磁気フィールドにより励起されたことに応答して発生された前記ひずみセンサ装置からの信号を受信する受信機と、
期間中の異なる時点で受信された前記信号に基づいて前記レゾネータの共振周波数のシフトを判定する装置と、
前記期間中の前記レゾネータの共振周波数におけるシフトに基づいて、前記埋め込み型ハードウェア装置のひずみの一時的変化を判定するアナライザを備えてなる、監視システム。 - 請求項1〜5の何れかの方法を実行するための、プロセッサにより実行可能な指令を記憶する機械可読記憶媒体を備えたコンピュータプログラム。
- 前記アナライザは、前記埋め込み型ハードウェア装置のひずみ−周波数校正のデータを記憶するメモリを備えている請求項23の監視システム。
- 生物学的対象の骨折治癒を表すデータを記憶するメモリ装置をさらに備え、前記データは、骨折に関連する前記生物学的対象に埋め込まれた前記埋め込み型ハードウェア装置のひずみにおける一時的変化に基づいている請求項23の監視システム。
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-
2009
- 2009-09-02 EP EP15186883.3A patent/EP3009067A1/en not_active Withdrawn
- 2009-09-02 CN CN200980132226.4A patent/CN102123657B/zh not_active Expired - Fee Related
- 2009-09-02 BR BRPI0917288A patent/BRPI0917288A2/pt not_active IP Right Cessation
- 2009-09-02 KR KR1020117003823A patent/KR101332239B1/ko not_active IP Right Cessation
- 2009-09-02 EP EP09792188.6A patent/EP2317912B1/en not_active Not-in-force
- 2009-09-02 ES ES09792188.6T patent/ES2557496T3/es active Active
- 2009-09-02 WO PCT/US2009/055772 patent/WO2010028077A1/en active Application Filing
- 2009-09-02 CA CA2734690A patent/CA2734690C/en not_active Expired - Fee Related
- 2009-09-02 JP JP2011525295A patent/JP5715951B2/ja not_active Expired - Fee Related
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2011
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EP2317912A1 (en) | 2011-05-11 |
CA2734690C (en) | 2016-01-05 |
ES2557496T3 (es) | 2016-01-26 |
US20110152725A1 (en) | 2011-06-23 |
CN102123657A (zh) | 2011-07-13 |
CN102123657B (zh) | 2014-12-03 |
WO2010028077A1 (en) | 2010-03-11 |
US9326728B2 (en) | 2016-05-03 |
US20160198981A1 (en) | 2016-07-14 |
KR20110044758A (ko) | 2011-04-29 |
BRPI0917288A2 (pt) | 2015-11-10 |
CA2734690A1 (en) | 2010-03-11 |
EP2317912B1 (en) | 2015-11-04 |
JP2012501237A (ja) | 2012-01-19 |
EP3009067A1 (en) | 2016-04-20 |
KR101332239B1 (ko) | 2013-11-25 |
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