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1. (WO2019043384) STENTS
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Pub. No.: WO/2019/043384 International Application No.: PCT/GB2018/052443
Publication Date: 07.03.2019 International Filing Date: 30.08.2018
IPC:
A61L 31/04 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
L
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
31
Materials for other surgical articles
04
Macromolecular materials
Applicants:
UNIVERSITY OF WESTMINSTER [GB/GB]; 309 Regent Street London W1B 2HW, GB
Inventors:
ROY, Ipsita; GB
NIGMATULLIN, Rinat; GB
BASNETT, Pooja; GB
LUKASIEWICZ, Barbara; GB
Agent:
DEHNS; St Bride's House 10 Salisbury Square London EC4Y 8JD, GB
Priority Data:
1713994.031.08.2017GB
1714814.914.09.2017GB
Title (EN) STENTS
(FR) ENDOPROTHÈSES
Abstract:
(EN) The invention provides bioresorbable polymeric stents made from polymer blends which include polyhydroxyalkanoates (PHAs). In particular, the invention provides stents having a stent body which comprises a polymer blend comprising: (a) from to 40 wt.% of a first component which is a PHA copolymer comprising two or more different medium chain length hydroxyalkanoate monomer units; and (b) from 60 to 95 wt.% of a second component which is either a PHA homopolymer containing a short chain length hydroxyalkanoate monomer unit, or a polylactide (PLA). The invention further relates to polymer blends comprising (a) and (b).
(FR) L'invention concerne des endoprothèses polymères biorésorbables fabriquées à partir de mélanges de polymères qui comprennent des polyhydroxyalcanoates (PHA). En particulier, l'invention concerne des endoprothèses ayant un corps d'endoprothèse qui comprend un mélange de polymères comprenant : (a) de 40 % en poids d'un premier composant qui est un copolymère de PHA comprenant au moins deux motifs monomères d'hydroxyalcanoate à longueur de chaîne moyenne différente ; et (b) de 60 à 95 % en poids d'un second composant qui est soit un homopolymère de PHA contenant un motif monomère d'hydroxyalcanoate à longueur de chaîne courte, soit un polylactide (PLA). L'invention concerne en outre des mélanges de polymères comprenant (a) et (b).
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)