Polymeric fluorinated dioxole and medical devices comprising same
View Patent ↗A polymeric material having improved gas permeability comprises units of fluorinated dioxole. The polymeric material may further comprise units of a hydrophobic monomer, a hydrophilic monomer, or combinations thereof. Such a polymeric material is desirably used to produce medical devices, such as ophthalmic devices that provide increased comfort to a user.
1. A medical device comprising a polymeric composition that comprises units of fluorinated dioxole that has a formula selected from the group consisting of
and combinations thereof, wherein X is independently selected from the group consisting of hydrogen, fluorine, and R 1 , R 2 are independently selected from the group consisting of substituted and unsubstituted lower alkyl groups, substituted and unsubstituted alkyloxy groups, substituted and unsubstituted aromatic and heteroaromatic groups having 6-36 carbon atoms in a ring system, substituted and unsubstituted cyclic and heterocyclic groups having 6-36 carbon atoms in a ring system, and combinations thereof; and at least one of the groups R 1 , R 2 , and X comprises a fluorinated group and at least one of R 1 , R 2 comprises a substituted or unsubstituted aromatic group having 6-36 carbon atoms in a ring system.
2. The medical device of claim 1 , wherein X is fluorine.
3. The medical device of claim 1 , wherein the polymeric composition comprises units of fluorinated dioxole having Formula I, II, or combinations thereof.
4. The medical device of claim 1 , wherein the polymeric composition comprises units of fluorinated dioxole having Formula III.
5. The medical device of claim 1 , wherein the polymeric composition comprises units of an additional monomer selected from the group consisting of hydrophobic monomers, hydrophilic monomers, combinations thereof, and mixtures thereof.
6. The medical device of claim 1 , wherein the polymeric composition comprises units of a vinyl-terminated polysiloxane, wherein the polysiloxane comprises a side group that comprises an aromatic group having 6-36 carbon atoms in a ring system.
7. The medical device of claim 6 , wherein the polysiloxane comprises a side group that comprises a fluorinated lower alkyl group.
8. The medical device of claim 6 , wherein the polymeric composition comprises units of a hydrophilic monomer.
9. The medical device of claim 1 , wherein the medical device is a contact lens, an intraocular lens, a corneal inlay, a corneal ring, or a keratoprothesis.