Clay-based hemostatic agents and devices for the delivery...

Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Web – sheet or filament bases; compositions of bandages; or...

Reexamination Certificate

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C424S443000, C424S444000, C424S489000, C424S446000, C424S447000, C602S041000, C602S042000, C602S043000, C602S045000, C602S046000, C602S047000, C602S048000, C602S052000, C602S053000, C602S054000, C602S056000, C602S057000, C602S058000, C502S080000

Reexamination Certificate

active

07968114

ABSTRACT:
A device for promoting the clotting of blood comprises a clay material in particle form and a receptacle for containing the clay material. At least a portion of the receptacle is defined by a mesh. Another device comprises a gauze substrate and a clay material disposed on the gauze substrate. Another device is a bandage comprising a substrate, a mesh mounted on the substrate, and particles of a clay material retained in the mesh. A hemostatic sponge comprises a substrate, a hemostatic material disposed on a first surface of the substrate, and a release agent disposed on a second surface of the substrate. The release agent is disposed on the wound-contacting surface of the substrate. When treating a bleeding wound, application of the hemostatic sponge causes at least a portion of the hemostatic material to come into contact with blood through the release agent and through the substrate.

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