Patent ID: 7144976

Claim:
A method of forming medical implants, comprising: irradiating in vivo a fluid prepolymer comprising a polymer prepared from at least one lactone monomer selected from the group consisting of ε-caprolactone, trimethylene carbonate, glycolide, L-lactide, D-lactide, DL-lactide, p-dioxanone, 5,5-dimethyl-1,3-dioxan-2-one, 1,4-dioxepan-2-one and 1,5-dioxepan-2-one, said prepolymer being a liquid at 65° C. or at a lower temperature and comprising coumarin ester endgroups, wherein the inherent viscosity of the polymer is between about 0.05 dL/g and about 0.8 dL/g as determined in 0.1 g/dL solution of hexafluoroisopropanol at 25° C.