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US 2015/0374877 A1Published application
Chitosan Foam Medical Devices and Methods
AssigneeProvidence Health System-Oregon
InventorsJian Xin Guo, Kenton W. Gregory
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Abstract
The invention provides a solid foam wound dressing useful for hemorrhage control and wound repair, as well as methods for making such a wound dressing.
Claims20
A method of making a solid foam wound dressing, comprising:
- I. introducing gas bubbles into the aqueous solution to form an aqueous foam, wherein the aqueous solution comprises chitosan, at least one protic acid and at least one surface active agent;
- II. freezing the aqueous foam;
- and
- III. dehydrating the aqueous foam to form a solid foam.
1 more element
Dependencies are inferred from the claim text.