ES2564567T3 - Un revestimiento que comprende una red interpenetrante de poli(etilenglicol)-poli(lactida-glicolida-caprolactona) - Google Patents
Un revestimiento que comprende una red interpenetrante de poli(etilenglicol)-poli(lactida-glicolida-caprolactona)Info
- Publication number
- ES2564567T3 ES2564567T3 ES09729399.7T ES09729399T ES2564567T3 ES 2564567 T3 ES2564567 T3 ES 2564567T3 ES 09729399 T ES09729399 T ES 09729399T ES 2564567 T3 ES2564567 T3 ES 2564567T3
- Authority
- ES
- Spain
- Prior art keywords
- poly
- glycolide
- lactide
- coating
- caprolactone
- 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.)
- Active
Links
Classifications
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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
- 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
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P7/00—Drugs for disorders of the blood or the extracellular fluid
- A61P7/02—Antithrombotic agents; Anticoagulants; Platelet aggregation inhibitors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P7/00—Drugs for disorders of the blood or the extracellular fluid
- A61P7/04—Antihaemorrhagics; Procoagulants; Haemostatic agents; Antifibrinolytic agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S623/00—Prosthesis, i.e. artificial body members, parts thereof, or aids and accessories therefor
- Y10S623/924—Material characteristic
- Y10S623/926—Synthetic
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Organic Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Medicinal Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Cardiology (AREA)
- Diabetes (AREA)
- Surgery (AREA)
- Hematology (AREA)
- Epidemiology (AREA)
- Urology & Nephrology (AREA)
- Materials For Medical Uses (AREA)
- Medicinal Preparation (AREA)
Abstract
Un método para la fabricación de un revestimiento para un dispositivo médico implantable, que comprende la formación de un revestimiento sobre el dispositivo, comprendiendo el revestimiento una red interpenetrante (IPN) o semi-IPN, en el que la IPN o la semi-IPN comprende poli(etilenglicol) (PEG) y un copolímero de poliéster alifático, en el que el copolímero de poliéster alifático comprende poli(lactida-co-glicolida-co-caprolactona) (PLGACL), poli(lactida-co-glicolida) (PLGA), o poli(butileno succinato).
Description
revestimiento que contenga un agente terapéutico. El cuerpo del dispositivo puede contener también un agente terapéutico.
[0032] Un dispositivo implantable se puede fabricar con un revestimiento que contenga de manera parcial o total un polímero biodegradable/bioabsorbible/bioerosionable, un polímero bioestable, o una combinación de los 5 mismos. Un dispositivo implantable en sí también se puede fabricar de manera parcial o total a partir de un polímero biodegradable/bioabsorbible/bioerosionable, un polímero bioestable, o una combinación de los mismos.
[0033] Como se utiliza en el presente documento, un material que se describe como una capa o una película (por ejemplo, un revestimiento) “colocada sobre” un sustrato indicado (por ejemplo, un dispositivo implantable) se refiere a, por ejemplo, un revestimiento del material depositado de manera directa o indirecta sobre al menos una
10 parte de la superficie del sustrato. Depositar de manera directa significa que el revestimiento se aplica directamente a la superficie expuesta del sustrato. Depositar de manera indirecta significa que el revestimiento se aplica a una capa intermedia que se ha depositado de manera directa o indirecta sobre el sustrato. En algunos modos de realización, el término una “capa” o una “película” excluye una película o una capa formada sobre un dispositivo no implantable.
15 [0034] En el contexto de un stent, “administración” se refiere a la introducción y al transporte del stent a través de un lumen corporal hasta una región, tal como una lesión, en un vaso sanguíneo que requiere tratamiento. “Despliegue” corresponde a la expansión del stent en el interior del lumen en la región tratada. La administración y el despliegue de un stent se consiguen posicionando el stent alrededor de un extremo de un catéter, insertando el extremo del catéter a través de la piel dentro de un lumen corporal, haciendo avanzar el catéter en el lumen
20 corporal hasta un lugar de tratamiento deseado, expandiendo el stent en lugar de tratamiento y retirando el catéter del lumen.
[0035] En general, se puede determinar la hidrofobicidad de un polímero utilizando el parámetro de solubilidad de Hildebrand δ. El término “parámetro de solubilidad de Hildebrand” se refiere a un parámetro que mide la cohesión de una sustancia. El parámetro δ se determina de la siguiente manera:
25
donde δ es el parámetro de solubilidad, (cal/cm3)1/2;
�E es la energía de vaporización, cal/mol; y V es el volumen molar, cm3/mol.
[0036] Sea cual sea el polímero de la mezcla de polímeros que tenga un valor de δ inferior en comparación con
30 el valor de δ del otro polímero de la mezcla, éste se designa como un polímero hidrofóbico, y el polímero con el valor de δ superior se designa como hidrofílico. Si se utilizan más de dos polímeros en la mezcla, entonces cada uno puede clasificarse por orden de su valor de δ. Para la práctica de la presente invención, el valor de δ de un polímero concreto es intrascendente para la clasificación de un polímero como hidrofóbico o hidrofílico, siempre y cuando la diferencia en los valores de δ de los dos polímeros sea suficiente para permitir que el polímero
35 hidrofílico migre o brote a la superficie. En un modo de realización de ejemplo, el valor de δ que define el límite entre los componentes hidrofóbicos e hidrofílicos de la mezcla de polímeros puede ser de aproximadamente 11 (cal/cm3)1/2 .
Agentes biológicamente activos
[0037] En algunos modos de realización, el dispositivo implantable descrito en el presente documento puede
40 incluir de manera opcional al menos un agente biológicamente activo (“bioactivo”). El al menos un agente bioactivo puede incluir cualquier sustancia capaz de ejercer un efecto terapéutico, profiláctico o diagnóstico para un paciente.
[0038] Ejemplos de agentes bioactivos adecuados incluyen, pero sin carácter limitativo, compuestos sintéticos inorgánicos y orgánicos, proteínas y péptidos, polisacáridos y otros azúcares, lípidos y secuencias de ácido 45 nucleico del ADN y ARN que tienen actividades terapéuticas, profilácticas o diagnósticas. Las secuencias del ácido nucleico incluyen genes, moléculas antisentido que se unen al ADN complementario para inhibir la transcripción, y ribozimas. Otros ejemplos de otros agentes bioactivos incluyen anticuerpos, ligandos de receptores, enzimas, péptidos de adhesión, factores de coagulación de la sangre, inhibidores o agentes de disolución de coágulos tales como estreptoquinasa y activador tisular del plasminógeno, antígenos para la
50 inmunización, hormonas y factores de crecimiento, oligonucleótidos tales como oligonucleótidos antisentido y ribozimas y vectores retrovirales para utilizarse en la terapia génica. Los agente bioactivos se podrían diseñar, por ejemplo, para inhibir la actividad de las células de los músculos lisos vasculares. Podrían destinarse a inhibir la migración y/o la proliferación anormal o inapropiada de las células de los músculos lisos para inhibir la reestenosis.
55 [0039] En determinados modos de realización, opcionalmente en combinación con uno o varios modos de realización descritos en el presente documento, el dispositivo implantable puede incluir al menos un agente
6
Claims (1)
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imagen1
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US101866 | 2008-04-11 | ||
US12/101,866 US8128983B2 (en) | 2008-04-11 | 2008-04-11 | Coating comprising poly(ethylene glycol)-poly(lactide-glycolide-caprolactone) interpenetrating network |
PCT/US2009/039691 WO2009126590A2 (en) | 2008-04-11 | 2009-04-06 | A coating comprising poly (ethylene glycol)-poly (lactide-glycolide-caprolactone) interpenetrating network |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2564567T3 true ES2564567T3 (es) | 2016-03-23 |
Family
ID=40886811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES09729399.7T Active ES2564567T3 (es) | 2008-04-11 | 2009-04-06 | Un revestimiento que comprende una red interpenetrante de poli(etilenglicol)-poli(lactida-glicolida-caprolactona) |
Country Status (5)
Country | Link |
---|---|
US (2) | US8128983B2 (es) |
EP (1) | EP2276517B1 (es) |
JP (1) | JP5659445B2 (es) |
ES (1) | ES2564567T3 (es) |
WO (1) | WO2009126590A2 (es) |
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JP5201635B2 (ja) * | 2006-04-12 | 2013-06-05 | アルテリアル・ルモンドラン・テクノロジー・エス・アー | 生物活性部位を低減するためにポリマーステント表面を平滑化および再形成する改良された方法 |
-
2008
- 2008-04-11 US US12/101,866 patent/US8128983B2/en not_active Expired - Fee Related
-
2009
- 2009-04-06 ES ES09729399.7T patent/ES2564567T3/es active Active
- 2009-04-06 WO PCT/US2009/039691 patent/WO2009126590A2/en active Application Filing
- 2009-04-06 EP EP09729399.7A patent/EP2276517B1/en not_active Not-in-force
- 2009-04-06 JP JP2011504116A patent/JP5659445B2/ja not_active Expired - Fee Related
-
2012
- 2012-01-23 US US13/356,457 patent/US20120121684A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
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US8128983B2 (en) | 2012-03-06 |
EP2276517A2 (en) | 2011-01-26 |
US20120121684A1 (en) | 2012-05-17 |
WO2009126590A2 (en) | 2009-10-15 |
US20090259302A1 (en) | 2009-10-15 |
JP5659445B2 (ja) | 2015-01-28 |
EP2276517B1 (en) | 2015-10-14 |
JP2011516208A (ja) | 2011-05-26 |
WO2009126590A3 (en) | 2010-08-05 |
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