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1. (WO2009127698) IMPROVED MEDICAL DEVICE WITH HYDROPHILIC COATING
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2009/127698    International Application No.:    PCT/EP2009/054545
Publication Date: 22.10.2009 International Filing Date: 16.04.2009
Chapter 2 Demand Filed:    17.02.2010    
IPC:
A61L 29/14 (2006.01), A61L 29/08 (2006.01), A61L 31/00 (2006.01)
Applicants: ASTRA TECH AB [SE/SE]; Aminogatan 1 S-431 21 Mölndal (SE) (For All Designated States Except US).
SCHMID, Andrea [SE/SE]; (SE) (For US Only).
SVENSSON, Marie [SE/SE]; (SE) (For US Only)
Inventors: SCHMID, Andrea; (SE).
SVENSSON, Marie; (SE)
Agent: Urban Lind; AWAPATENT AB Box 11394 S-404 28 Göteborg (SE)
Priority Data:
08154718.4 17.04.2008 EP
61/071,217 17.04.2008 US
Title (EN) IMPROVED MEDICAL DEVICE WITH HYDROPHILIC COATING
(FR) DISPOSITIF MÉDICAL AMÉLIORÉ POURVU D'UN REVÊTEMENT HYDROPHILE
Abstract: front page image
(EN)A medical device is disclosed, comprising a substrate and a hydrophilic surface coating arranged on said substrate. The substrate has, on its surface coated with said hydrophilic surface coating, a surface texture with an arithmetical mean deviation of the surface profile (Ra) of at least 3 μm and/or a profile section height difference (Rdc (1-99%)) of at least 18 μm. It has surprisingly been found that the increased surface roughness of the substrate provides significant improvements in e. water retention for the hydrophilic coating.
(FR)Le dispositif médical selon l’invention comprend un substrat et un revêtement de surface hydrophile disposé sur ledit substrat. Le substrat porte, sur sa surface revêtue avec ledit revêtement de surface hydrophile, une texture de surface présentant un écart moyen arithmétique du profil de surface (Ra) d'au moins 3 µm et/ou une différence de hauteur de profil en coupe (Rdc (1-99 %)) d'au moins 18 µm. De manière étonnante, on a découvert que l'accroissement de la rugosité superficielle du substrat induit des améliorations significatives en termes de rétention d'eau pour le revêtement hydrophile.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)