JP2019088807A - 組織集積センサー - Google Patents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
- A61B5/1459—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using optical sensors, e.g. spectral photometrical oximeters invasive, e.g. introduced into the body by a catheter
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0004—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0015—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system
- A61B5/0017—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system transmitting optical signals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0031—Implanted circuitry
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B5/07—Endoradiosondes
- A61B5/076—Permanent implantation
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- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
- A61B5/14503—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
- A61B5/14532—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue for measuring glucose, e.g. by tissue impedance measurement
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
- A61B5/1468—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using chemical or electrochemical methods, e.g. by polarographic means
- A61B5/1473—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using chemical or electrochemical methods, e.g. by polarographic means invasive, e.g. introduced into the body by a catheter
- A61B5/14735—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using chemical or electrochemical methods, e.g. by polarographic means invasive, e.g. introduced into the body by a catheter comprising an immobilised reagent
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
- A61B5/1495—Calibrating or testing of in-vivo probes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
- A61B5/681—Wristwatch-type devices
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7271—Specific aspects of physiological measurement analysis
- A61B5/7278—Artificial waveform generation or derivation, e.g. synthesizing signals from measured signals
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Abstract
Description
本出願は、2010年10月6日に出願された米国仮出願第61/390,252号の利益を主張し、その開示は全体として参照により本明細書に援用される。
利用なし。
用語「組織集積」とは、生体組織内に組み込まれた場合、組織の血管(例えば、毛細血管)との近接近の状態である材料(例えば、足場)を意味する。「近接近」とは、組織内に埋め込まれた材料(足場)内の任意点から最も近い血管までの平均距離が、天然の(元の)組織における任意点から最も近い血管までの平均距離よりも大きく、100ミクロン未満であることを意味する。
本明細書には、対象に埋め込むためのセンサー(又は検知媒体)が記載されている。センサーは、組織集積足場と少なくとも1つの検知部分で作られている。
本明細書に記載されているセンサーは、典型的には、組織集積足場(マトリックスとも称される)材料を含む。好ましくは、本発明の組織集積足場は、該足場が組織集積及び/又は脈管化を促進するような材料及び/又は微小構築物を用いて構築されてもよい。例えば、多孔性足場は、組織生体材料固着を提供し、細孔全体での内部成長を促進する。得られる組織増殖の「通路(hallway)」又は「チャネル」のパターンは、経時的に持続し、宿主細胞集積を促進する多量の空間充填塊である。本明細書に記載されている生体材料の細孔の全て又はその大部分は、好ましくは相互連結(同時連続)されている。生体材料の同時連続の細孔構造は、インプラントにおける細胞の空間充填内部成長を促進し、順に異物反応を制限し、センサーとして作用するインプラントの能力の長期(1週間を超えて、最大数年)の維持をもたらす。組織集積足場を提供する代替構造体には、非無作為形状又は無作為形状で配置されてもよいファイバー(例えば、直径1〜10ミクロン又はそれを超える、例えば5、6、7、8、9、10ミクロン又はそれを超える)が含まれる。また、組織集積足場(任意の形態で)は、多光子重合技術によって形成され得る。Kaehrら.(2008)Proc.Nat’l.Acad.Sci.USA 105(26):8850−8854;Nielson et al.(2009)Small 1:120−125;Kasprzak,Doctoral Dissertation,Georgia Institute of Technology,2009年5月。
本明細書に記載されている組織集積足場は、典型的には、1以上の分析物を検出する検知部分と組み合わせられる(又は検知部分で作られる)。
組織集積足場と分析物検知部分との組み合わせは、移植可能な検知媒体、検知媒体、組織集積センサー、組織集積バイオセンサー、組織集積検知媒体又はそれらの変形体と呼ばれてもよい。
本発明の別の局面は、哺乳動物生体内での半連続、連続及び/又は長期の使用のための組織集積バイオセンサーシステムである。本明細書に記載されているバイオセンサーシステムは、組織集積バイオセンサー(以下に記載されている)を含む。他のコンポーネントには、以下の1以上が含まれる:受信装置、照明器、検出器、シグナル受信機、シグナル送信機、シグナル処理コンポーネント、エネルギー貯蔵コンポーネント、データ記憶コンポーネント、データ送信機、データ表示、データ処理コンポーネント及びそれらの組み合わせが挙げられる。これらの他のコンポーネントの1以上は、センサーシグナルを検出するためのセンサー全体に存在する装着型パッチ内に組み込まれてもよく、又は携帯用若しくは他のデバイス内に組み込まれてもよく、それは、移植されたセンサー全体で周期的に保持され、測定を行う。図18参照。
本発明の別の局面は、組織集積センサーを作成するための方法である。組織集積センサーを創作するための方法は、対象の分析物に応答して、測定可能なシグナル(単数又は複数)を生成するように十分に、検知部分の統合を維持する方法で検知部分と組織集積足場を組み合わせるプロセスを含む。
以下は、本明細書に記載されている組織集積センサーを作製するための1つの方法を説明する。この方法は、足場材料として非架橋PMMA鋳型マイクロスフェアとpHEMAの使用を伴う。PMMAマイクロスフェア鋳型は、ふるいにかけられたPMMAスフェア(36μm、5%未満のCV)を用い、テフロン(登録商標)スペーサーによる2つのガラススライド間に鋳型ビーズを配置することにより調製された。焼結プロセスは、(ビーズを密接にパッキングするために)少なくとも10分間超音波処理し、次に、鋳型を177℃に24時間加熱することを含む(これらの条件は異なるオーブンについて変更し、またビーズの異なるバッチについて変更してもよい)。
以下は、本明細書に記載されている組織集積センサーを作製するための1つの提案された方法を説明する。この方法は、足場材料として非架橋PMMA鋳型マイクロスフェアとpHEMAの使用を伴う。PMMAマイクロスフェア鋳型は、ふるいにかけられたPMMAスフェア(36μm、5%未満のCV)を用い、テフロン(登録商標)スペーサーによる2つのガラススライド間に鋳型ビーズを配置することにより調製される。焼結プロセスは、(ビーズを密接にパッキングするために)少なくとも10分間超音波処理し、次に、鋳型を177℃に24時間加熱することを含む(これらの条件は異なるオーブンについて変更し、またビーズの異なるバッチについて変更してもよい)。
直径300〜500μm、長さ5mmのロッド内の組織集積センサーは、19〜23ゲージの挿入針、トロカール、修飾された生検デバイス又は皮膚下に移植するように操作された他のデバイスに置かれる。センサーは、挿入前に場合により脱水され又は圧搾され、より小さな挿入針の使用を可能にする。
センサーからのデータは、回収され、加工され、スマートフォン、他の携帯型デバイス、コンピュータスクリーン又は他の視覚化フォーマット上に、例えば、Medtronicから利用可能な市販のデータ表示デバイスを用いて表示させる。生データは、分析濃度に変換され、又は分析濃度(例えば、高さ、低さ、範囲内)の何らかの非定量的な表示に変換される。時間内若しくは傾向内における任意の所定点の値(経時的なグラフ)又はある期間の要約統計量が与えられる。データの質の表示を場合により与える。
Claims (12)
- 検知部分であって、(1)組織を通過して分散された励起シグナルを受信し、及び(2)励起シグナルの受信に応答して、分析物の存在下で発光シグナルを生じさせる検知部分;及び
該検知部分を含む組織集積足場
を含む装置。 - 全組織集積足場が電子機器を欠いている、請求項1に記載の装置。
- 毛細血管が検知部分に近接近した状態で組織集積足場内に直接成長し得るように、足場は、相互連結された複数の細孔を画定する、請求項1又は2に記載の装置。
- 装置が、約100〜1000ミクロン径であり、長さが0.25mm〜10mmである、請求項1〜3のいずれか1項に記載の装置。
- 組織集積足場が、発光シグナルと区別可能な参照シグナルを生じるように構成された参照部分をさらに含み、参照部分と検知部分は、参照シグナルと測定シグナルが組織を通過して分散された後、参照シグナルが測定シグナルと比較され得るように集合的に構成されている、請求項1〜4のいずれか1項に記載の装置。
- 組織集積足場が完全に検知部分で構成されている、請求項1〜5のいずれか1項に記載の装置。
- 組織集積足場がポリマーを含む、請求項1〜5のいずれか1項に記載の装置。
- 検知部分が組織集積足場内に包埋されている、請求項1〜5のいずれか1項に記載の装置。
- 検知部分が組織集積足場の外部に付着している、請求項1〜5のいずれか1項に記載の装置。
- 検知部分がマイクロスフェア及びナノスフェアを含む、請求項1〜9のいずれか1項に記載の装置。
- 検知部分が複数の検知部分の1つであり、該複数の検知部分は組織集積足場内の多層に配置されている、請求項1〜10のいずれか1項に記載の装置。
- モジュールであって、(1)励起シグナルが組織を通過して分散するように励起シグナルを生じさせ、及び(2)励起シグナルが組織を通過して分散した後に検知部分によって生じた発光シグナルを受信するように構成されたモジュールをさらに含む、請求項1〜11のいずれか1項の装置。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US39025210P | 2010-10-06 | 2010-10-06 | |
| US61/390,252 | 2010-10-06 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2015205520A Division JP2016047252A (ja) | 2010-10-06 | 2015-10-19 | 組織集積センサー |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2019088807A true JP2019088807A (ja) | 2019-06-13 |
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013532954A Expired - Fee Related JP5827999B2 (ja) | 2010-10-06 | 2011-10-06 | 組織集積センサー |
| JP2015205520A Pending JP2016047252A (ja) | 2010-10-06 | 2015-10-19 | 組織集積センサー |
| JP2018247880A Pending JP2019088807A (ja) | 2010-10-06 | 2018-12-28 | 組織集積センサー |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013532954A Expired - Fee Related JP5827999B2 (ja) | 2010-10-06 | 2011-10-06 | 組織集積センサー |
| JP2015205520A Pending JP2016047252A (ja) | 2010-10-06 | 2015-10-19 | 組織集積センサー |
Country Status (9)
| Country | Link |
|---|---|
| US (5) | US10463287B2 (ja) |
| EP (2) | EP2624744A4 (ja) |
| JP (3) | JP5827999B2 (ja) |
| KR (1) | KR101690535B1 (ja) |
| CN (3) | CN105147300B (ja) |
| AU (4) | AU2011311889C1 (ja) |
| BR (1) | BR112013008154A2 (ja) |
| CA (3) | CA3184858A1 (ja) |
| WO (1) | WO2012048150A1 (ja) |
Families Citing this family (56)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10682462B2 (en) * | 2008-05-14 | 2020-06-16 | Becton, Dickinson And Company | Separatable infusion set with cleanable interface and straight line attachment |
| CA2993719C (en) | 2009-01-12 | 2022-04-19 | Becton, Dickinson And Company | Infusion set and/or patch pump having at least one of an in-dwelling rigid catheter with flexible features and/or a flexible catheter attachment |
| US9517023B2 (en) | 2009-06-01 | 2016-12-13 | Profusa, Inc. | Method and system for directing a localized biological response to an implant |
| US10010272B2 (en) | 2010-05-27 | 2018-07-03 | Profusa, Inc. | Tissue-integrating electronic apparatus |
| WO2012048150A1 (en) | 2010-10-06 | 2012-04-12 | Profusa, Inc. | Tissue-integrating sensors |
| US9950109B2 (en) | 2010-11-30 | 2018-04-24 | Becton, Dickinson And Company | Slide-activated angled inserter and cantilevered ballistic insertion for intradermal drug infusion |
| US8814831B2 (en) | 2010-11-30 | 2014-08-26 | Becton, Dickinson And Company | Ballistic microneedle infusion device |
| US8795234B2 (en) | 2010-11-30 | 2014-08-05 | Becton, Dickinson And Company | Integrated spring-activated ballistic insertion for drug infusion device |
| US8795230B2 (en) | 2010-11-30 | 2014-08-05 | Becton, Dickinson And Company | Adjustable height needle infusion device |
| US8784383B2 (en) | 2010-11-30 | 2014-07-22 | Becton, Dickinson And Company | Insulin pump dermal infusion set having partially integrated mechanized cannula insertion with disposable activation portion |
| EP2685884B1 (en) | 2011-03-15 | 2020-09-23 | Senseonics, Incorporated | Integrated catalytic protection of oxidation sensitive materials |
| USD688784S1 (en) | 2012-04-13 | 2013-08-27 | Becton, Dickinson And Company | Infusion device |
| USD685083S1 (en) | 2012-04-13 | 2013-06-25 | Becton, Dickinson And Company | Infusion device |
| USD687140S1 (en) | 2012-04-13 | 2013-07-30 | Becton, Dickinson And Company | Infusion device |
| USD687536S1 (en) | 2012-04-13 | 2013-08-06 | Becton, Dickinson And Company | Infusion device |
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