JP2022504856A - マイクロ構造体 - Google Patents
マイクロ構造体 Download PDFInfo
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- JP2022504856A JP2022504856A JP2021520336A JP2021520336A JP2022504856A JP 2022504856 A JP2022504856 A JP 2022504856A JP 2021520336 A JP2021520336 A JP 2021520336A JP 2021520336 A JP2021520336 A JP 2021520336A JP 2022504856 A JP2022504856 A JP 2022504856A
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- A—HUMAN NECESSITIES
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- 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
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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
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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
- A61M37/0069—Devices for implanting pellets, e.g. markers or solid medicaments
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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
- 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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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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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
- A61M2037/0061—Methods for using microneedles
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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
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
- A61M2202/0468—Liquids non-physiological
- A61M2202/0484—Alcohol
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Abstract
Description
Claims (18)
- 薬物を含むティップ部;および
基板と前記ティップ部との間に形成され、前記ティップ部が皮膚に挿入された後に前記基板と前記ティップ部との間を分離させるものの、外力によって物理的に分離させたり化学物質によって化学的に分離させる分離部;を含む、マイクロ構造体。 - 前記基板または前記ティップ部の一側上に形成されるベース部をさらに含み、
前記分離部は前記ベース部と前記ティップ部との間または前記基板と前記ベース部との間に形成され、前記ティップ部が皮膚に挿入された後に前記ベース部と前記ティップ部との間または前記基板と前記ベース部との間を分離させる、請求項1に記載のマイクロ構造体。 - 前記分離部は生分解性高分子および糖類の中から選択された一つ以上を含む、請求項1に記載のマイクロ構造体。
- 前記分離部は前記化学物質によって溶解するのに所要する時間が5分未満であるか、前記化学物質によって3分内に単位体積当たり70%以上が溶解する、請求項1に記載のマイクロ構造体。
- 前記化学物質は前記基板と前記皮膚との間に流入したり前記ティップ部が前記皮膚に挿入される前に前記皮膚上に塗布される、請求項1に記載のマイクロ構造体。
- 前記化学物質は水、水溶液、および注射可能なエステルのうち選択されたいずれか一つ以上を含み、前記水溶液は炭素数1-4の無水または含水低級アルコール、アセトン、エチルアセテート、クロロホルム、1,3-ブチレングリコール、ヘキサン、ジエチルエーテルおよびブチルアセテートのうち選択された一つ以上を含み、前記注射可能なエステルは非水溶性剤、プロピレングリコール、ポリエチレングリコール、油状成分、およびエチルオレートのうち選択された一つ以上を含み、油状成分として使われ得るオイルは植物性オイル、鉱物性オイル、シリコン油および合成油のうち選択されたいずれか一つ以上を含む、請求項1に記載のマイクロ構造体。
- 前記分離部は両側の断面より中央部の断面が小さい面積を有する、請求項1に記載のマイクロ構造体。
- 前記分離部は前記ティップ部または前記基板との結合力より小さな力によって破断する、請求項1に記載のマイクロ構造体。
- 前記分離部は前記ティップ部が前記皮膚から離脱する力より小さな力によって破断する、請求項1に記載のマイクロ構造体。
- 前記外力は前記分離部に対して水平方向または垂直方向に加えられる、請求項1に記載のマイクロ構造体。
- 前記分離部または前記ベース部は生分解性物質を含む、請求項1または請求項2に記載のマイクロ構造体。
- 前記ティップ部はその垂直断面が尖端部に行くほど小さく形成されるか、その垂直断面が連続的な曲率からなるキャンドルの形状を有する、請求項1に記載のマイクロ構造体。
- 前記基板は前記分離部に対応する部位に一定厚さを有する突出部が形成され、
断面上水平な直線、傾いた斜線、または中央が膨らんだり凹んだ曲線からなる、請求項1に記載のマイクロ構造体。 - 基板上に形成され第1断面を有するベース部;
前記ベース部の前記第1断面より小さい第2断面を含み、前記基板から遠くなる方向に延びるように前記ベース部上に形成された分離部;および
前記分離部の前記第2断面より広い第3断面を含み、前記基板から遠くなる方向に延びるように前記分離部上に形成されたティップ部を含み、
前記ベース部、前記分離部および前記ティップ部の外側面は前記基板から遠くなる方向に連続した曲率を有する、マイクロ構造体。 - 前記ベース部は前記基板から遠くなる方向に行くほど面積が狭くなり、
前記第2断面は前記基板から遠くなる方向から見る時、前記分離部の中央部分に位置し、前記分離部の断面のうち最も狭い断面であり、
前記第3断面は前記分離部の前記基板から遠い一端部面より広い断面を有し、前記基板から遠くなる方向から見る時、前記ティップ部の断面のうち最も広い断面であり、
前記ティップ部は前記ティップ部の前記第3断面から前記基板から遠くなる方向に行くほど狭くなる断面を有するように上端部が尖っている形態で形成される、請求項14に記載のマイクロ構造体。 - 前記ベース部、前記分離部および前記ティップ部は一体に形成されるか、前記ベース部および前記ティップ部は互いに異なる物質で形成される、請求項14に記載のマイクロ構造体。
- 前記第1断面の直径は10~1,000umであり、
第2断面の直径は5~500umであり、
前記基板から前記第2断面までの延長長さは50~1,000umであり、
前記第3断面の直径は100~500umであり、
前記第3断面から前記ティップ部の端部までの距離は100~1,000umであり、
前記基板から前記ティップ部の端部までの全体の延長長さは200~2,000umである、請求項14に記載のマイクロ構造体。 - 前記ティップ部は前記基板から遠くなる方向に前記分離部の一端部から前記第3断面まで第1延長長さに位置した第1体積領域、前記第3断面から前記第1延長長さの2倍の延長長さに位置した第2体積領域および前記第2体積領域の上部に位置した第3体積領域を含み、前記第1体積領域および前記第2体積領域を合わせた体積は前記第3体積領域の2~1000倍の体積であり、
前記ティップ部が前記ベース部および前記分離部の体積より1.5~100倍の体積を有し、
前記ベース部から前記ティップ部までの全体の高さ方向に上位60%の高さ範囲の体積が全体体積の60~90%である、請求項14に記載のマイクロ構造体。
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PCT/KR2019/012589 WO2020075997A1 (ko) | 2018-10-08 | 2019-09-27 | 마이크로 구조체 |
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