EP 2717815 A1 20140416 - WOUND DRESSING CONTAINING FOAM MATERIAL AND AN OINTMENT BASE AND A SWELLING AGENT FOR NEGATIVE PRESSURE THERAPY
Title (en)
WOUND DRESSING CONTAINING FOAM MATERIAL AND AN OINTMENT BASE AND A SWELLING AGENT FOR NEGATIVE PRESSURE THERAPY
Title (de)
WUNDAUFLAGE, ENTHALTEND SCHAUMSTOFF UND SALBENGRUNDLAGE UND QUELLSTOFF, ZUR UNTERDRUCKTHERAPIE
Title (fr)
PANSEMENT CONTENANT DE LA MOUSSE SYNTHÉTIQUE, UNE BASE DE POMMADE ET UN AGENT DE GONFLEMENT POUR LE TRAITEMENT PAR PRESSION NÉGATIVE
Publication
Application
Priority
- EP 11004724 A 20110609
- EP 2012002442 W 20120608
- EP 12728982 A 20120608
Abstract (en)
[origin: EP2532325A1] Device for negative pressure therapy of wounds, comprises (a) a covering material (2) for airtight sealing of a wound region (1), (b) optionally a means for connecting a negative pressure source (7), and (c) a wound dressing (3) containing (c1) an open-celled foam material, preferably a polyurethane foam, (c2) an ointment base and (c3) a swelling agent, where the combined amount of the ointment base (c2) and the swelling agent (c3) is 10-95 wt.%, based on the total weight of the wound dressing. Independent claims are also included for: (1) preparing the wound dressing, comprising (i) heating the ointment base greater than the dropping point, (ii) mixing the swelling agent and the ointment base, (iii) introducing the open-celled foam material into a mixture of the swelling agent and a warmed ointment base such that the foam material is wetted at least partially by the mixture of the ointment base and the swelling agent, (iv) optionally temporarily compressing the foam material to at least 90%, preferably not > 10% of its original volume to achieve a wetting of the inner surface of the foam material by the mixture of an ointment base and the swelling agent, and (v) optionally removing the excess mixture of the ointment base and the swelling agent by squeezing the foam material; and (2) the wound dressing obtainable by the above method.
IPC 8 full level
A61F 13/02 (2006.01); A61F 13/00 (2006.01); A61L 15/34 (2006.01); A61L 15/60 (2006.01); A61M 1/00 (2006.01)
CPC (source: CN EP US)
A61F 13/00063 (2013.01 - CN EP US); A61F 13/0203 (2013.01 - CN EP US); A61F 13/05 (2024.01 - CN EP US); A61L 15/20 (2013.01 - CN); A61L 15/26 (2013.01 - CN EP US); A61L 15/34 (2013.01 - CN EP US); A61L 15/425 (2013.01 - CN EP US); A61P 17/02 (2017.12 - EP); A61F 2013/00161 (2013.01 - CN EP US); A61F 2013/00268 (2013.01 - CN EP US); A61F 2013/00536 (2013.01 - CN EP US); A61F 2013/00748 (2013.01 - CN EP US); A61M 1/915 (2021.05 - CN EP US)
Citation (search report)
See references of WO 2012167942A1
Citation (examination)
US 2011034861 A1 20110210 - SCHAEFER JOSEPH H [US]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2532325 A1 20121212; EP 2532325 B1 20140305; CN 103596527 A 20140219; EP 2717815 A1 20140416; RU 2013156852 A 20150720; US 2012316517 A1 20121213; WO 2012167942 A1 20121213
DOCDB simple family (application)
EP 11004724 A 20110609; CN 201280027080 A 20120608; EP 12728982 A 20120608; EP 2012002442 W 20120608; RU 2013156852 A 20120608; US 201213491236 A 20120607