Patent ID: 7439012

Claim:
A liquid plasma expander composition for use in a subject in need thereof, consisting essentially of: (a) from 0.1 to 10 percent by weight of basic alpha keratose; said basic alpha keratose produced by the process of separating basic alpha keratose from a mixture of acidic and basic alpha keratose by ion exchange chromatography; and with said basic alpha keratose having an average molecular weight of from 10 to 100 kilodaltons; (b) from 0 to 5 percent by weight of gamma keratose; and (c) from 90 to 99.9 percent by weight of an electrolyte solution; with said basic alpha keratose and said gamma keratose solubilized in said electrolyte solution to form a homogeneous liquid composition having: (i) a pH of 7-8; (ii) an osmolarity of 200 to 500 milliosmoles/Liter; and (iii) a viscosity of 2 to 20 centipoise at a temperature of 37 degrees Celsius as determined with a Brookfield viscometer having a cone and plate geometry with a cone angle of 0.02 radians at a constant frequency of 30 rotations per minute.