Absorbent multilayer hydrogel wound dressings
Abstract
The invention provides wound dressings comprising an absorbent (porous) hydrogel composition comprising a foam portion which comprises a flexible plasticized hydrophilic polymer matrix having an internal cellular structure, and a continuous portion which comprises a flexible plasticized hydrophilic polymer matrix having relatively continuous internal structure. The continuous portion of the hydrogel composition includes apertures providing fluid flow communication through the continuous portion between an external surface of the continuous portion and the foam portion whereby the foam portion can take up external water or other fluid into the cellular structure through the apertures of the continuous portion. The continuous portion of the hydrogel composition may be tacky to the skin, allowing its use as a bioadhesive.
Term
Term ended
Projected expiry passed 12 December 2023, 2.8 years ago.
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Every citation, both ways
| Document | Relation | Office | Cited during |
|---|---|---|---|
| TWI425959B | Cited by | Taiwan Province of China | Examiner |
13 members in 8 offices
Priority claims3
| Document | Office | Kind | Date |
|---|---|---|---|
| 0229024 | United Kingdom | – | |
| 0229024 | United Kingdom | A | |
| 0305460 | United Kingdom | W |
Members13
| Document | Office | Kind | |
|---|---|---|---|
| GB0229024D0 | United Kingdom | D0 | |
| GB2396109A | United Kingdom | A | |
| WO2004052414A1 | World Intellectual Property Organization (WIPO) | A1 | |
| AU2003294121A1 | Australia | A1 | |
| EP1569698A1This record | European Patent Office (EPO) | A1 | |
| GB2396109B | United Kingdom | B | |
| US2006200063A1 | United States of America | A1 | |
| EP1569698B1 | European Patent Office (EPO) | B1 | |
| AT424856T | Austria | T | |
| ATE424856T1 | Austria | T1 | |
| DE60326636D1 | Germany | D1 | |
| ES2321291T3 | Spain | T3 | |
| US8664464B2 | United States of America | B2 |
82 legal events, as 9 offices reported them to INPADOC
Over the term
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| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
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| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Gb: european patent ceased through non-payment of renewal feeCeasedGBPC | GBPC | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Announcement of lapse in spainLapsedFD2A | FD2A | ES | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
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| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Change of representativeR082 | R082 | DE | |
| Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)REGISTERED BETWEEN 20180215 AND 20180221732E | 732E | GB | |
| Change of applicant/patenteeR081 | R081 | DE | |
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| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
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| Transmission of propertyTP | TP | FR | |
| Change of applicant/patenteeR081 | R081 | DE | |
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| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
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| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
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| Lapsed because of non-payment of the annual feeLapsedV1 | V1 | NL | |
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| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
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| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
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| No opposition filedOpposition26N | 26N | EP | |
| Nl: modifications (of names), taken from the european patent patent bulletinNLT2 | NLT2 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
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| No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE | PLBE | EP | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA | STAA | EP | |
| Party data changed (patent owner data changed or rights of a patent transferred)RAP2 | RAP2 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
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| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
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| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Translation of granted ep patentGrantedTRGR | TRGR | SE | |
| Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)REGISTERED BETWEEN 20090521 AND 20090527732E | 732E | GB | |
| Definitive protectionFG2A | FG2A | ES | |
| Corresponds to:REF | REF | EP | |
| European patents granted designating irelandGrantedFG4D | FG4D | IE | |
| European patent takes effect as a national patent in ch/liEP | EP | CH | |
| Designated contracting statesAK | AK | EP | |
| European patent grantedGrantedFG4D | FG4D | GB | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| Grant fee paidORIGINAL CODE: EPIDOSNIGR3GRAS | GRAS | EP | |
| Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOSNIGR1GRAP | GRAP | EP | |
| First examination report despatched17Q | 17Q | EP | |
| Request for extension of the european patent (deleted)DAX | DAX | EP | |
| Request for examination filed17P | 17P | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAX | AX | EP | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI | EP |
Numbers
- Publication
- 1569698
- Application
- 37895414
Titles3
- German
- ABSORBIERENDER HYDROGEL ENTHALTENDER WUNDVERBAND
- English
- ABSORBENT MULTILAYER HYDROGEL WOUND DRESSINGS
- French
- PANSEMENTS HYDROGEL MULTICOUCHES ABSORBANTS
Classification
- CPC, 3
- A61L15/425
- A61L15/60
- A61L15/58
- IPC, 3
- A61L15 42
- A61L15 58
- A61L15 60
Designated states31
- Contracting states, 27
- Austria
- Belgium
- Bulgaria
- Switzerland
- Cyprus
- Czechia
- Germany
- Denmark
- Estonia
- Spain
- Finland
- France
- United Kingdom
- Greece
- Hungary
- Ireland
- Italy
- Liechtenstein
- Luxembourg
- Monaco
- Netherlands (Kingdom of the)
- Portugal
- Romania
- Sweden
and 3 moreShow fewer
- Slovenia
- Slovakia
- Türkiye
- Extension states, 4
- Albania
- Lithuania
- Latvia
- North Macedonia