JPH11507559A - 誘発式薬剤解放投与装置 - Google Patents
誘発式薬剤解放投与装置Info
- Publication number
- JPH11507559A JPH11507559A JP9502269A JP50226997A JPH11507559A JP H11507559 A JPH11507559 A JP H11507559A JP 9502269 A JP9502269 A JP 9502269A JP 50226997 A JP50226997 A JP 50226997A JP H11507559 A JPH11507559 A JP H11507559A
- Authority
- JP
- Japan
- Prior art keywords
- drug
- catheter
- hydrogel
- polymer
- balloon portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/104—Balloon catheters used for angioplasty
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/08—Materials for coatings
- A61L29/085—Macromolecular materials
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/14—Materials characterised by their function or physical properties, e.g. lubricating compositions
- A61L29/145—Hydrogels or hydrocolloids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/14—Materials characterised by their function or physical properties, e.g. lubricating compositions
- A61L29/16—Biologically active materials, e.g. therapeutic substances
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/08—Materials for coatings
- A61L31/10—Macromolecular materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L31/145—Hydrogels or hydrocolloids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L31/16—Biologically active materials, e.g. therapeutic substances
-
- 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
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/04—Tracheal tubes
- A61M16/0434—Cuffs
- A61M16/0443—Special cuff-wall materials
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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
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/04—Tracheal tubes
- A61M16/0434—Cuffs
- A61M16/0454—Redundant cuffs
- A61M16/0456—Redundant cuffs one cuff within another
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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
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/04—Tracheal tubes
- A61M16/0475—Tracheal tubes having openings in the tube
- A61M16/0477—Tracheal tubes having openings in the tube with incorporated means for delivering or removing fluids
- A61M16/0481—Tracheal tubes having openings in the tube with incorporated means for delivering or removing fluids through the cuff wall
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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
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
- A61F2250/0067—Means for introducing or releasing pharmaceutical products into the body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/416—Anti-neoplastic or anti-proliferative or anti-restenosis or anti-angiogenic agents, e.g. paclitaxel, sirolimus
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/42—Anti-thrombotic agents, anticoagulants, anti-platelet agents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/60—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a special physical form
- A61L2300/602—Type of release, e.g. controlled, sustained, slow
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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
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M2025/0057—Catheters delivering medicament other than through a conventional lumen, e.g. porous walls or hydrogel coatings
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
- A61M2025/09175—Guide wires having specific characteristics at the distal tip
- A61M2025/09183—Guide wires having specific characteristics at the distal tip having tools at the distal tip
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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
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1011—Multiple balloon catheters
- A61M2025/1013—Multiple balloon catheters with concentrically mounted balloons, e.g. being independently inflatable
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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
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M2025/1043—Balloon catheters with special features or adapted for special applications
- A61M2025/105—Balloon catheters with special features or adapted for special applications having a balloon suitable for drug delivery, e.g. by using holes for delivery, drug coating or membranes
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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
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M2025/1043—Balloon catheters with special features or adapted for special applications
- A61M2025/1086—Balloon catheters with special features or adapted for special applications having a special balloon surface topography, e.g. pores, protuberances, spikes or grooves
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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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/02—General characteristics of the apparatus characterised by a particular materials
- A61M2205/0266—Shape memory materials
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Pulmonology (AREA)
- Epidemiology (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Chemical & Material Sciences (AREA)
- Surgery (AREA)
- Emergency Medicine (AREA)
- Dispersion Chemistry (AREA)
- Biophysics (AREA)
- Medicinal Chemistry (AREA)
- Molecular Biology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Child & Adolescent Psychology (AREA)
- Materials For Medical Uses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.身体内の所望の位置の組織に薬剤を投与する方法にして、 身体内に挿入可能な構造とされたカテーテルであって、該カテーテルの一部が 相当な所定の量の前記薬剤を保持し得るヒドロゲルを保持し、前記薬剤が、誘発 剤により、又は周囲の生理学的状態と異なる状態により解放される迄、前記ヒド ロゲル内に略動かないように保持されるようにしたカテーテルを提供することと 、 所望の薬剤の投与箇所まで該カテーテルを前記身体内に導入することと、 前記ヒドロゲルを前記誘発剤に露呈又は誘発状態にさせ、該誘発剤又は誘発状 態が前記ヒドロゲルからの前記薬剤の解放を誘発させて身体内の前記所望の位置 に供給することとを含む方法。 2.前記ヒドロゲルから体腔壁の所望の位置の組織への薬剤の解放を誘発すべ く採用される、請求項1に記載の方法にして、 カテーテル軸と、該カテーテル軸に取り付けられた膨張可能なバルーン部分と を有する、体腔内に挿入可能な構造とされたカテーテルを提供することを含み、 前記バルーン部分が、制御された圧力にて前記組織に係合し、体腔の断面を充 填し且つ該体腔の前記壁に押し付けられるように膨張可能であり、 前記バルーン部分の外面には、相当な所定の量の前記薬剤を保持し得る前記ヒ ドロゲルが被覆され、前記薬剤が、誘発剤により、又は周囲の生理学的状態と異 なる状態により解放される迄、前記ヒドロゲル内に動かないように保持されるよ うにされ、 前記カテーテルを前記体腔に導入し、該体腔内にて、前記バルーン部分が所望 の薬剤投与箇所に配置されるようにすることと、 前記バルーン部分を膨張させて前記組織に係合させることと、 前記ヒドロゲルを前記誘発剤又は状態に露呈させ、前記誘発剤又は状態が、体 腔壁の前記所望の位置にて前記ヒドロゲルからの前記薬剤の解放を誘発すること とを含む方法。 3.請求項1に記載の方法にして、前記誘発剤が、局所的なイオン強度を増大 させ、これにより、前記ヒドロゲルからの前記薬剤の解放を誘発させる、方法。 4.請求項3に記載の方法にして、前記薬剤がイオン相互作用により前記ヒド ロゲルと協動するようにされ、前記誘発剤が前記イオン相互作用を停止させる、 方法。 5.請求項3に記載の方法にして、前記誘発剤が少なくとも0.2モルのモル濃 度を有する食塩溶液である、方法。 6.請求項1に記載の方法にして、前記誘発剤が、前記ヒドロゲルの容積相変 化を生じさせるpHを有し、これにより、前記薬剤の解放を誘発する溶液である 、方法。 7.請求項6に記載の方法にして、前記溶液が約7.5以上のpHを有する、方 法。 8.請求項6に記載の方法にして、前記溶液が約7.3以下のpHを有する、方 法。 9.請求項1に記載の方法にして、前記ヒドロゲルが温度に鋭敏なポリマーで あり、前記状態が、前記ポリマーの温度が体温以上に上昇することである、方法 。 10.請求項9に記載の方法にして、前記ポリマーの前記温度が、少なくとも38 ℃まで上昇し、該温度上昇により前記ポリマーの容積相変化を生じさせ、これに より前記薬剤の解放を誘発する、方法。 11.請求項1に記載の方法にして、前記ヒドロゲルが感光性ポリマーであり、 前記状態が可視光又は紫外線で照射することである、方法。 12.請求項1に記載の方法にして、前記薬剤が増殖防止剤である、方法。 13.請求項1に記載の方法にして、前記薬剤が血栓防止剤である、方法。 14.請求項1に記載の方法にして、前記薬剤が血栓溶解剤である、方法。 15.請求項2に記載の方法にして、前記バルーン部分が、前記ヒドロゲルから の前記薬剤の解放を誘発させる圧力状態まで膨張される、方法。 16.請求項15に記載の方法にして、前記圧力状態が少なくとも2大気圧であ る、方法。 17.キットにして、(a)カテーテル軸を有する、体腔内に挿入可能な構造と されたテーテルであって、該カテーテル軸に取り付けられた膨張可能なバルーン 部分を有し、該バルーン部分が相当な所定の量の薬剤を保持し得るヒドロゲルポ リマーを有するカテーテルと、(b)誘発剤により解放される迄、前記ポリマー 内に動かないように保持することのできる前記薬剤と、(c)前記誘発剤の溶液 とを備えるキット。 18.キットにして、(a)カテーテル軸を有する、体腔内に挿入可能な構造と された熱カテーテルであって、該カテーテル軸に取り付けられた膨張可能なバル ーン部分を有し、該バルーン部分が相当な所定の量の薬剤を保持し得るヒドロゲ ルポリマーを有する熱カテーテルと、(b)前記ポリマーの温度上昇により解放 される迄、前記ポリマー内に動かないように保持することのできる前記薬剤とを 備えるキット。 19.キットにして、(a)カテーテル軸を有する、体腔内に挿入可能な構造と されたカテーテルであって、該カテーテル軸に取り付けられた膨張可能なバルー ン部分と、該バルーン部分に対して電磁放射線を放出することのできるファイバ とを有し、該バルーン部分が相当な所定の量の薬剤を保持し得るポリマーを有す るカテーテルと、(b)電磁放射線に露呈されることにより解放される迄、前記 ポリマー内に動かないように保持することのできる前記薬剤とを備えるキット。 20.身体内の所望の位置の組織に薬剤を投与するカテーテルにして、 カテーテル軸を有する、体腔内に挿入可能な構造とされたカテーテルであって 、該カテーテル軸に取り付けられた膨張可能なバルーン部分を有するカテーテル と、 誘発剤がその外面まで流れるときに通ることのできる孔を有する前記バルーン 部分と、 制御された圧力にて前記組織に係合し、前記体腔の断面を充填し且つ前記体腔 の前記壁に押し付けられるように膨張可能な前記バルーン部分と、 前記薬剤の相当な所定の量を保持し得るヒドロゲルポリマーがその外面に被覆 された前記バルーン部分とを備え、前記薬剤が、誘発剤により解放される迄、前 記ポリマー内に動かないように保持され、これにより、前記孔を通じて供給され た前記誘発剤が前記ポリマーに接触するようにすることにより前記ポリマーから の前記薬剤の解放が誘発されるようにしたカテーテル。 21.体腔壁の所望の位置の組織に薬剤を投与するカテーテルにして、 カテーテル軸を有する、体腔内に挿入可能な構造とされたカテーテルであって 、 該カテーテル軸に取り付けられた膨張可能なバルーン部分を有するカテーテルと 、 制御された圧力にて前記組織に係合し、前記体腔の断面を充填し且つ前記体腔 の前記壁に押し付けられるように膨張可能な前記バルーン部分と、 前記バルーン部分の表面の少なくとも一部の上方に亙って配置された多孔質薄 膜であって、誘発剤をその内部に導入することのできるスペースをその間に形成 する多孔質薄膜とを備え、 前記多孔質薄膜の外面が相当な所定の量の前記薬剤を保持し得るヒドロゲルポ リマーで被覆され、前記薬剤が、誘発剤により解放される迄、前記ポリマー内に 動かないように保持され、前記多孔質薄膜が、前記バルーン部分の膨張により前 記スペースを圧縮すべく加えられた圧力に応答して、前記誘発剤を該薄膜の開口 部を通じて前記スペースから該薄膜の前記外面まで伝達し得る構造とされ、これ により、該バルーン部分の膨張により前記誘発剤が前記ポリマー内に押し込まれ 、前記体腔壁の前記所望の位置にて前記薬剤の解放を誘発させるようにした、カ テーテル。 22.身体内の所望の位置の組織に薬剤を投与するカテーテルにして、 カテーテル軸を有する、体腔内に挿入可能な構造とされた熱カテーテルであっ て、該カテーテル軸に取り付けられた膨張可能なバルーン部分を有する熱カテー テルと、 制御された圧力にて前記組織に係合し、体腔の断面を充填し且つ該体腔の前記 壁に押し付けられるように膨張可能である前記バルーン部分と、 前記薬剤の相当な所定の量を保持し得る、温度に鋭敏なヒドロゲルポリマーに てその外面が被覆された前記バルーン部分とを備え、前記ポリマーの温度上昇に より解放される迄、前記薬剤が前記ポリマー内に動かないように保持され、これ により、前記ポリマーの温度上昇により、前記ポリマーからの前記薬剤の解放が 誘発されるようにしたカテーテル。 23.身体内の所望の位置の組織に薬剤を投与するカテーテルにして、 カテーテル軸を有する、体腔内に挿入可能な構造とされたカテーテルであって 、該カテーテル軸に取り付けられた膨張可能なバルーン部分を有するカテーテル と、 電磁放射線を前記バルーン部分に放出し得るファイバを有する前記カテーテル と、 制御された圧力にて前記組織に係合し、体腔の断面を充填し且つ該体腔の前記 壁に押し付けられるように膨張可能である前記バルーン部分とを備え、 該バルーン部分の外面が、前記薬剤の相当な所定の量を保持し得る、電磁放射 線に鋭敏なヒドロゲルポリマーにて被覆され、前記電磁放射線に露呈されること により解放される迄、前記薬剤が前記ポリマー内に動かないように保持され、こ れにより、該ポリマーが該電磁放射線に露呈されることにより前記ポリマーから の前記薬剤の解放が誘発されるようにしたカテーテル。
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US08/478,745 | 1995-06-07 | ||
US08/478,745 US6524274B1 (en) | 1990-12-28 | 1995-06-07 | Triggered release hydrogel drug delivery system |
PCT/US1996/010259 WO1996039949A1 (en) | 1995-06-07 | 1996-06-06 | Triggered release drug delivery system |
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JPH11507559A true JPH11507559A (ja) | 1999-07-06 |
JP3827726B2 JP3827726B2 (ja) | 2006-09-27 |
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JP50226997A Expired - Fee Related JP3827726B2 (ja) | 1995-06-07 | 1996-06-06 | 誘発式薬剤解放投与装置 |
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US (2) | US6524274B1 (ja) |
EP (1) | EP0836429B1 (ja) |
JP (1) | JP3827726B2 (ja) |
AT (1) | ATE310450T1 (ja) |
CA (1) | CA2223586C (ja) |
DE (1) | DE69635481T2 (ja) |
WO (1) | WO1996039949A1 (ja) |
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EP0836429A4 (en) | 1998-12-16 |
ATE310450T1 (de) | 2005-12-15 |
US20030114791A1 (en) | 2003-06-19 |
JP3827726B2 (ja) | 2006-09-27 |
CA2223586A1 (en) | 1996-12-19 |
US7066904B2 (en) | 2006-06-27 |
CA2223586C (en) | 2009-02-17 |
EP0836429B1 (en) | 2005-11-23 |
US6524274B1 (en) | 2003-02-25 |
WO1996039949A1 (en) | 1996-12-19 |
DE69635481T2 (de) | 2006-07-20 |
EP0836429A1 (en) | 1998-04-22 |
DE69635481D1 (de) | 2005-12-29 |
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