Biomedical devices

1. A biomedical device obtained from a polymerization product of a mixture comprising (a) a copolymer which is the reaction product of one or more polymerizable polyhydric alcohols and one or more polymerizable fluorine-containing monomers; and (b) a biomedical device-forming comonomer.

2. The biomedical device of claim 1 , wherein the polymerizable polyhydric alcohol is a polyhydric alcohol terminated with a polymerizable ethylenically unsaturated radical and the polymerizable fluorine-containing monomer is a fluorine-containing monomer terminated with a polymerizable ethylenically unsaturated radical.

3. The biomedical device of claim 1 , wherein the polymerizable polyhydric alcohol is selected from the group consisting of polymerizable glycerol, polymerizable erythritol, polymerizable xylitol, polymerizable sorbitol and mixtures thereof.

4. The biomedical device of claim 1 , wherein the polymerizable polyhydric alcohol is selected from the group consisting of glycerol (meth)acrylate, erythritol (meth)acrylate, xylitol (meth)acrylate, sorbitol (meth)acrylate and mixtures thereof.

5. The biomedical device of claim 1 , wherein the polymerizable fluorine-containing monomer is a fluorinated (meth)acrylate monomer.

6. The biomedical device of claim 1 , wherein the polymerizable fluorine-containing monomer is selected from the group consisting of 2,2,2-trifluoroethyl (meth)acrylate, 2,2,3,3-tetrafluoropropyl (meth)acrylate, 2,2,3,3,3,-pentafluoropropyl (meth)acrylate, 1-trifluoromethyl-2,2,2-trifluoroethyl (meth)acrylate, 1H,1H,5H-octafluoropentyl (meth)acrylate, hexafluoroisopropyl (meth)acrylate, 2,2,3,3,4,4-hexafluorobutyl (meth)acrylate and mixtures thereof.

7. The biomedical device of claim 1 , wherein the copolymer is terminated with an ethylenically unsaturated-containing radical.

8. The biomedical device of claim 1 , wherein the biomedical device-forming comonomer is a silicone-containing monomer.

9. The biomedical device of claim 1 , wherein the mixture further comprises a hydrophilic monomer, hydrophobic monomer or both.

10. The biomedical device of claim 9 , wherein the hydrophilic monomer is selected from the group consisting of 2-hydroxyethylmethacrylate, 2-hydroxyethylacrylate, glyceryl methacrylate, N-vinyl pyrrolidone, N-vinyl-N-methyl acetamide, N, N-dimethyl methacrylamide, N,N-dimethylacrylamide, acrylic acid, methacrylic acid and mixtures thereof.

11. The biomedical device of claim 9 , wherein the hydrophobic monomer is a silicone-containing monomer having from 1 to about 20 silicon atoms.

12. The biomedical device of claim 11 , wherein the silicone monomer is 3-methacryloxypropyl tris(trimethylsiloxy)silane.

13. The biomedical device of claim 9 , wherein the hydrophobic monomer is an aliphatic ring containing monomer selected from the group consisting of isobornyl acrylate, isobornyl methacrylate, cyclohexyl acrylate, cyclohexyl methacrylate and mixtures thereof.

14. The biomedical device of claim 1 , wherein component (a) comprises about 0.1 to about 50 weight percent of the mixture and the biomedical device-forming comonomer component (b) comprises about 50 to about 99.9 weight percent of the mixture.

15. The biomedical device of claim 1 , wherein component (a) comprises about 0.25 to about 30 weight percent of the mixture and the biomedical device-forming comonomer component (b) comprises about 70 to about 99.75 weight percent of the mixture.

16. The biomedical device of claim 1 , wherein component (a) comprises about 1 to about 10 weight percent of the mixture and the biomedical device-forming comonomer component (b) comprises about 90 to about 99 weight percent of the mixture.

17. The biomedical device of claim 1 , which is an ophthalmic lens.

18. The biomedical device of claim 17 , wherein the ophthalmic lens is a contact lens.

19. The biomedical device of claim 18 , wherein the contact lens is a rigid gas permeable lens.

20. The biomedical device of claim 1 , which is a hydrogel.