JP6301961B2 - 経皮センサの幾何学的配置 - Google Patents
経皮センサの幾何学的配置 Download PDFInfo
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- JP6301961B2 JP6301961B2 JP2015553708A JP2015553708A JP6301961B2 JP 6301961 B2 JP6301961 B2 JP 6301961B2 JP 2015553708 A JP2015553708 A JP 2015553708A JP 2015553708 A JP2015553708 A JP 2015553708A JP 6301961 B2 JP6301961 B2 JP 6301961B2
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- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0062—Arrangements for scanning
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- A—HUMAN NECESSITIES
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- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
- A61M5/16836—Monitoring, detecting, signalling or eliminating infusion flow anomalies by sensing tissue properties at the infusion site, e.g. for detecting infiltration
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- A61B5/0071—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence by measuring fluorescence emission
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- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1588—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body having means for monitoring, controlling or visual inspection, e.g. for patency check, avoiding extravasation
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Description
Claims (26)
- 動物組織における浸潤及び遊出の少なくとも一方の診断を支援するセンサであって、
動物組織の表皮に向き合うように構成された表面を含むハウジングと、
第1光信号を伝達するように構成された第1導波路であって、
動物組織に進入する前記第1光信号を放出するように構成された放出器端面を有し、
前記第1光信号を、前記放出器端面と90°で交差する第1経路に沿って案内し、且つ
部分的に前記ハウジング内に配設される、
第1導波路と、
動物組織からの反射、散乱、及び方向変換の少なくとも一つが行われた前記第1光信号の部分を含む第2光信号を伝達するように構成された第2導波路であって、
動物組織から出る前記第2光信号を収集するように構成された検出器端面を有し、
前記第2光信号を、前記検出器端面と90°で交差する第2経路に沿って案内し、且つ
部分的に前記ハウジング内に配設される、
第2導波路と、
前記表皮の上に重なるように構成された平滑な外面であって、前記表面、前記放出器端面、及び前記検出器端面を含む外面と、
を具備し、
前記放出器端面の各々の個別点は前記検出器端面の各々の個別点から3ミリメートル以上の最小距離に配設され、且つ前記放出器端面の各々の個別点は前記検出器端面の各々の個別点から5ミリメートル以下の最大距離に配設され、
前記検出器端面は、前記外面の弧状の帯状領域を含み、且つ
前記帯状領域は、前記放出器端面と一致する中心点に関する曲率半径を有する、
センサ。 - 前記ハウジングは内部体積を画成し、且つ前記第1及び第2導波路の各々は部分的に前記内部体積内に配設される、請求項1に記載のセンサ。
- 前記内部体積内に配設された充填物であって、前記内部体積内に配設された前記第1及び第2導波路の部分を囲繞する充填物を具備する、請求項2に記載のセンサ。
- 前記充填物はエポキシを含む、請求項3に記載のセンサ。
- 前記外面は前記充填物の外壁を含む、請求項3に記載のセンサ。
- (i)前記第1導波路は複数本の放出用光ファイバを含むと共に、前記放出器端面は前記複数本の放出用光ファイバの個々の端面の集合体を含み、且つ
(ii)前記第2導波路は複数本の検出用光ファイバを含むと共に、前記検出器端面は前記複数本の検出用光ファイバの個々の端面の集合体を含む、請求項1に記載のセンサ。 - 前記外面は凸状である、請求項1に記載のセンサ。
- 前記最小距離は3.5ミリメートル以上であり且つ前記最大距離は4.5ミリメートル以下である、請求項1に記載のセンサ。
- 動物組織における浸潤及び遊出の少なくとも一方の診断を支援するセンサであって、
動物組織に進入する第1電磁放射線信号を放出するように構成された放出器端面を含む放出器と、
動物組織から出る第2電磁放射線信号を収集するように構成された検出器端面を含む収集器であって、前記第2電磁放射線信号は、動物組織からの反射、散乱、及び方向変換の少なくとも一つが行われた第1電磁放射線信号の部分を含む、収集器と、
を具備し、
前記放出器端面の各々の個別点は前記検出器端面の各々の個別点から3ミリメートル以上の最小距離に配設され、且つ前記放出器端面の各々の個別点は前記検出器端面の各々の個別点から5ミリメートル以下の最大距離に配設され、
前記検出器端面は、弧状の帯状領域を含み、且つ
前記帯状領域は、前記放出器端面と一致する中心点に関する曲率半径を有する、
センサ。 - 前記第1及び第2電磁放射線信号は、電磁スペクトルの可視光部分及び近赤外光部分の少なくとも一方に在る、請求項9に記載のセンサ。
- 前記第1及び第2電磁放射線信号の波長は、600ナノメータ〜1,800ナノメータの範囲にある、請求項9に記載のセンサ。
- 前記第1及び第2電磁放射線信号の波長は、940ナノメータに中心合わせされる、請求項9に記載のセンサ。
- 前記第1及び第2電磁放射線信号は、前記動物組織に進入するとき及びそこから出るとき角質層を貫通通過する、請求項9に記載のセンサ。
- 前記第1電磁放射線信号は、前記動物組織の真皮及び動物組織の下皮から成る群の少なくとも一方に進入する、請求項13に記載のセンサ。
- 前記第1電磁放射線信号の前記部分は、動物の血管周囲組織からの反射、散乱、及び方向変換の少なくとも一つが行われる、請求項13に記載のセンサ。
- 前記最小距離は3.5ミリメートル以上であり且つ前記最大距離は4.5ミリメートル以下である、請求項9に記載のセンサ。
- 動物組織における浸潤及び遊出の少なくとも一方の診断を支援するセンサを製造する方法であって、
動物組織の表皮に向き合うように構成された表面を貫通する放出開孔を通して放出用光ファイバを送り込む段階と、
前記表面を貫通する検出開孔を通して検出用光ファイバを送り込む段階と、
内部体積を画成するように、第1ハウジング部分及び第2ハウジング部分を結合する段階であって、前記第1ハウジング部分は前記表面を含み、且つ前記放出用光ファイバ及び検出用光ファイバは前記内部体積を貫通して延在している、第1ハウジング部分及び第2ハウジング部分を結合する段階と、
前記放出用光ファイバの放出器端面を研磨し、且つ前記検出用光ファイバの検出器端面を研磨する段階であって、前記放出器端面及び検出器端面は前記表面と共に平滑である、研磨する段階と、
を含み、
前記放出器端面の各々の個別点は前記検出器端面の各々の個別点から3ミリメートル以上の最小距離に配設され、且つ前記放出器端面の各々の個別点は前記検出器端面の各々の個別点から5ミリメートル以下の最大距離に配設される、
方法。 - 前記放出用光ファイバ及び検出用光ファイバを前記内部体積内に囲繞する段階を含む、請求項17に記載の方法。
- 前記放出用光ファイバ及び検出用光ファイバを囲繞する前記段階は、前記内部体積を充填する段階を含む、請求項18に記載の方法。
- 前記内部体積を充填する前記段階は、エポキシを注入する段階を含む、請求項19に記載の方法。
- 前記放出用光ファイバ及び検出用光ファイバを前記表面の近傍で劈開する段階を含む、請求項17に記載の方法。
- 前記放出開孔を通して前記放出用光ファイバを送り込む前記段階は、前記放出用光ファイバを前記表面に対して第1角度に配向する段階を含み、且つ
前記検出開孔を通して前記検出用光ファイバを送り込む前記段階は、前記検出用光ファイバを前記表面に対して第2角度に配向する段階を含む、請求項17に記載の方法。 - 前記第1及び第2角度は90°である、請求項22に記載の方法。
- 前記第1角度と第2角度との間の差は、15°〜45°の範囲にある、請求項22に記載の方法。
- 前記第1角度は50°〜70°の範囲にあり、且つ前記第2角度は75°〜95°の範囲にある、請求項22に記載の方法。
- 前記第1角度は60°であり、且つ前記第2角度は90°である、請求項22に記載の方法。
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