Method for preparing a compressed wound dressing
US8313474B2 · kind B2 · utility
22Cited by
99References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2007 |
| Grant date | Nov 20, 2012 |
| Priority date | — |
| Expiry date | Dec 2, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/00472
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An aqueous solution of polyacrylic acid is placed in a mold, frozen, and freeze-dried to form a sponge-like polyacrylic acid structure. The sponge-like polyacrylic acid structure is compressed by the application of heat and pressure to reduce the thickness and increase the density of the sponge-like polyacrylic acid structure to form a densified polyacrylic acid structure. The densified polyacrylic acid structure is preconditioned by heating to form a wound dressing. The wound dressing can be applied to control severe, life-threatening bleeding from a wound at a wound site of a person.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.