US 9,808,554 B2
Super soft foams
Hansen P. Swaniker, Bristol, RI (US)
Assigned to Covidien LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on Jul. 21, 2014, as Appl. No. 14/336,229.
Application 14/336,229 is a continuation of application No. 11/700,063, filed on Jan. 31, 2007, abandoned.
Claims priority of provisional application 60/763,730, filed on Jan. 31, 2006.
Prior Publication US 2014/0330235 A1, Nov. 6, 2014
Int. Cl. A61L 26/00 (2006.01); A61F 13/00 (2006.01); C08G 18/10 (2006.01); C08G 18/08 (2006.01); C08G 18/28 (2006.01); C08G 18/48 (2006.01); C08G 18/64 (2006.01); C08G 101/00 (2006.01)
CPC A61L 26/0019 (2013.01) [A61F 13/00063 (2013.01); A61L 26/0066 (2013.01); A61L 26/0085 (2013.01); C08G 18/10 (2013.01); C08G 18/2825 (2013.01); C08G 18/4833 (2013.01); C08G 18/6484 (2013.01); A61F 2013/0074 (2013.01); A61F 2013/0091 (2013.01); A61F 2013/00663 (2013.01); A61F 2013/00676 (2013.01); A61F 2013/00702 (2013.01); A61F 2013/00927 (2013.01); C08G 18/14 (2013.01); C08G 2101/00 (2013.01); C08G 2101/005 (2013.01)] 19 Claims
 
1. A medical product comprising:
a dried, porous foam produced from a composition for a foam comprising:
at least one NCO-terminated hydrophilic urethane prepolymer comprising a reaction product of at least one isocyanate selected from the group consisting of aromatic isocyanates, aliphatic isocyanates, and combinations thereof, in combination with a polyether polyol comprising a reaction product of an ethylene oxide and a compound containing at least two active hydrogen atoms selected from the group consisting of polyhydric alcohols, polyhydric phenols, amines, polycarboxylic acids, and phosphorous acids;
an aqueous phase comprising deionized water, at least one fatty alcohol, and at least one alkyl polysaccharide; and
an antimicrobial agent selected from the group consisting of polyhexamethylene biguanide (PHMB), polyethylene hexamethylene biguanide, and combinations thereof, wherein the antimicrobial agent is present in the composition in an amount up to about 20,000 ppm.