Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Particulate form
Reexamination Certificate
2011-03-22
2011-03-22
Richter, Johann R (Department: 1616)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Particulate form
C424S093100, C424S093720, C424S422000, C424S443000, C424S487000, C514S002600, C514S012200, C514S029000, C514S054000, C514S154000, C514S254110, C514S626000, C977S906000
Reexamination Certificate
active
07910135
ABSTRACT:
The present invention relates to a method of forming shape-retentive and shape-conforming aggregate wound dressings and biomaterials composed of gel nanoparticles and wound or bodily fluid in which the aggregates are held together by non-covalent bond physical forces such as, without limitation, hydrophobic-hydrophilic interactions and hydrogen bonds. The method comprises introducing a dry powder of gel nanoparticles to a wound site in which the nanoparticles absorb some of the blood or wound exudate and coalesce in situ into the claimed shape-retentive aggregate dressing. The method also comprises introducing the dry nanoparticle powder in or on a wet bodily tissue in vivo to form the claimed shape-retentive biomaterial. In addition, the method also comprises incorporating biomedical agents to produce medicated aggregate dressings or biomaterials for a variety of medical applications. This invention also relates to uses of the method of formation of the shape-retentive aggregates of gel nanoparticles.
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Moro Daniel G.
St. John John
Foley & Lardner LLP
Kassa Jessica
Konski Antoinette F.
Richter Johann R
ULURU Inc.
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