JP7315529B2 - 変色指示薬を含むマイクロニードルアレイ - Google Patents
変色指示薬を含むマイクロニードルアレイ Download PDFInfo
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- JP7315529B2 JP7315529B2 JP2020507527A JP2020507527A JP7315529B2 JP 7315529 B2 JP7315529 B2 JP 7315529B2 JP 2020507527 A JP2020507527 A JP 2020507527A JP 2020507527 A JP2020507527 A JP 2020507527A JP 7315529 B2 JP7315529 B2 JP 7315529B2
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- color change
- microneedle array
- microneedle
- indicator
- microneedles
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61M37/00—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
- A61M37/0015—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin by using microneedles
-
- 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
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
- A61B5/685—Microneedles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/0019—Injectable compositions; Intramuscular, intravenous, arterial, subcutaneous administration; Compositions to be administered through the skin in an invasive manner
- A61K9/0021—Intradermal administration, e.g. through microneedle arrays, needleless injectors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
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- A61M25/00—Catheters; Hollow probes
- A61M2025/0008—Catheters; Hollow probes having visible markings on its surface, i.e. visible to the naked eye, for any purpose, e.g. insertion depth markers, rotational markers or identification of type
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- A61M37/00—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
- A61M37/0015—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin by using microneedles
- A61M2037/0023—Drug applicators using microneedles
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- A61M37/00—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
- A61M37/0015—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin by using microneedles
- A61M2037/0046—Solid microneedles
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- A61M37/00—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
- A61M37/0015—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin by using microneedles
- A61M2037/0053—Methods for producing microneedles
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- A61M37/00—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
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- A61M2205/00—General characteristics of the apparatus
- A61M2205/02—General characteristics of the apparatus characterised by a particular materials
- A61M2205/0244—Micromachined materials, e.g. made from silicon wafers, microelectromechanical systems [MEMS] or comprising nanotechnology
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- B81—MICROSTRUCTURAL TECHNOLOGY
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Description
少なくとも1種の物質が、皮膚に対する固定手段と担体の複数のマイクロニードルとを含むマイクロニードルアレイによって送達され、
該マイクロニードルおよび/または担体にはpH指示薬が含まれる
前記方法に関する。
マイクロニードルにより送達されるニトラジンイエロー(pH指示薬)の使用。送達の奏功後に、ブルーの着色がおよそ10秒後に肉眼で視認可能であった。pH6.5~7である角質層のpH値と比較して、皮膚表面上のpH値はpH4~5.5と異なることから、穿刺について区別評価が可能となる。
a)ブルーの着色は、送達の奏功、すなわちマイクロニードルの角質層中への穿刺を示唆する;
b)皮膚が不変のまま留まる、またはわずかに黄色がかった色調を帯びるのは、すなわちマイクロニードルの角質層中への穿刺の不奏功である。
a)ブルーの着色は、送達の奏功、すなわちマイクロニードルの角質層中への穿刺を示唆する;TMBH2(無色)からTMB(ブルー)への色の変化は、指示薬の上記反応に基づく
b)皮膚が不変のまま留まるのは、マイクロニードルの角質層中への穿刺の不奏功、およびそれに対応する指示薬物質の反応が存在しないことを意味する。
Claims (13)
- 担体に複数のマイクロニードルを含む、皮内送達を伴う使用のためのマイクロニードルアレイであって、
マイクロニードルは、少なくとも1種の変色指示薬を含むことを特徴とし、
マイクロニードルは、少なくとも1種の活性成分を含み、
マイクロニードルは、生分解性ポリマー、生体適合性ポリマー、または水溶性ポリマーからなる少なくとも1種のポリマーを含み、
色の変化または色のシフトは、穿刺の結果として角質層に到達していることを示唆し、
変色指示薬は、マイクロニードルの不可分な部分であり、被覆の手段によって提供されていないことを特徴とし、
少なくとも1種の変色指示薬は、マイクロニードルに導入される、または組み込まれる、
前記マイクロニードルアレイ。 - 変色指示薬は、マイクロニードル製造中にマイクロニードルが製造されるポリマーに添加されることを特徴とする、請求項1に記載の使用のためのマイクロニードルアレイ。
- マイクロニードルは、少なくとも1種の医療用医薬品を含むことを特徴とする、請求項1または請求項2に記載の使用のためのマイクロニードルアレイ。
- 変色指示薬は、ニトラジンイエロー、ブロモチモールブルー、カルミン酸、ブラジリン、コンゴレッド、ニュートラルレッド、フェノールレッド、テトラブロモフェノールフタレイン、またはその混合物からなる群から選択される、少なくとも1種のpH指示薬であることを特徴とする、請求項1または請求項2に記載の使用のためのマイクロニードルアレイ。
- 変色指示薬は、ニトラジンイエローまたはブロモチモールブルーからなる群から選択される、少なくとも1種の生理学的に許容されるpH指示薬であることを特徴とする、請求項4に記載の使用のためのマイクロニードルアレイ。
- 少なくとも1種のpH指示薬である変色指示薬は、クロモイオノフォアまたはフルオロイオノフォアから選択される化合物であり、化合物は、クロモフォアおよびフルオロフォアから選択される少なくとも1つの分子と共有結合した少なくとも1つのイオノフォアから構成されることを特徴とする、請求項1~3のいずれか1項に記載のマイクロニードルアレイ。
- クロモフォアまたはフルオロフォアは、中性、酸性、または塩基性のニトロ化されたベンゼン染料、中性、酸性、または塩基性のアゾ染料、キノン染料、中性、酸性、または塩基性のアントラキノン染料、アジン染料、中性、酸性、または塩基性のメチンおよびアゾメチンのようなメチン染料、トリアリールメタン染料、インドアミン(indoamine)染料
、カロテノイド、テルペノイド、フラボノイド、ポルフィリン、フルオレセイン、ローダミン、およびクマリンのような天然の染料、ならびにその直接染料から選択されることを特徴とする、請求項6に記載の使用のためのマイクロニードルアレイ。 - 少なくとも1種のpH指示薬である変色指示薬は、バイオセンシング指示薬であることを特徴とする、請求項1~7のいずれか1項に記載のマイクロニードルアレイ。
- 変色指示薬は、3,3’,5,5’-テトラメチルベンジジン、または5-アミノ-2,3-ジヒドロフタラジン-1,4-ジオンによって、表皮の一部を形成しない内因性の酵素を検出することを特徴とする、請求項1~3のいずれか1項に記載のマイクロニードルアレイ。
- 変色指示薬は、マイクロニードルの先端に含まれることを特徴とする、請求項1~9のいずれか1項に記載の使用のためのマイクロニードルアレイ。
- 「プラス、十文字、星型、円形」のようなパターン、またはその他の任意の幾何学的な図形が、皮膚上に肉眼で視認可能であることを特徴とする、請求項1~10のいずれか1項に記載の使用のためのマイクロニードルアレイ。
- 接着性のストリップまたはパッチからなる群から選択される固定手段を含むことを特徴とする、請求項1~11のいずれか1項に記載の使用のためのマイクロニードルアレイ。
- 請求項1~12のいずれか1項に記載のマイクロニードルアレイを収容するマイクロニードルシステムであって、少なくとも1つのリザーバおよび/またはアプリケータを含む、前記マイクロニードルシステム。
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DE102017118419.8A DE102017118419A1 (de) | 2017-08-11 | 2017-08-11 | Mikronadelarray aufweisend einen Farbumschlag-Indikator |
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PCT/EP2018/071957 WO2019030417A2 (de) | 2017-08-11 | 2018-08-13 | Mikronadelarray aufweisend einen farbumschlag-indikator |
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