Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
32 words
casting said slurry in an open cylindrical mold and polymerizing at a temperature of 40*-60* C. to form a hard, self-supporting mass which is hygroscopic and swells anisotropically in a water medium;
Claim 2
Independent Claim
10 words
A method of shaping and cutting a contact lens comprising:
Claim 3
Dependent Claim
32 words
casting said slurry in an open cylindrical mold and polymerizing at a temperature of 40*-60* C. to form a hard, self-supporting mass which is hygroscopic and swells anisotropically in a water medium;
Claim 4
Dependent Claim
68 words
cutting away about 90-95 percent of the material from the planar face of the cylinder and from the circular outer periphery of the cylinder to leave the inner concave surface of the casting as the last surface to be cut as a lens blank having an arc of about 120* and in a diameter broad enough to cover the cornea and at least several millimeters of the limbus;
Claim 5
Dependent Claim
98 words
cutting a bevel edge at the periphery of the lens blank to form a lens having a semi-scleral flap which is adapted to be lifted up by tears in the scleral portion of the eye adjacent the outer edge of the flap while simultaneously forming a circular tear vesicle in the interior edge of the bevel which is spaced inwardly from said flap and which provides a circular well for tears in the eye at the limbal area, while the inner central portion of the lens is relatively flat to contact the cornea without any tear layer therebetween.
Claim 6
Dependent Claim
40 words
removing said mass and polymerizing at a temperature of 90*-120* C. to polymerize unreacted material from the polymerization with the first free radical initiator and to complete the hardening of said mass in its self-supporting condition outside of the mold;
Claim 7
Dependent Claim
41 words
removing said mass and polymerizing at a temperature of 90*-120* C. to polymerize unreacted material from the polymerization with the first free radical initiator and to complete the hardening of said mass in its self-supporting condition outside of the mold; and,
Claim 8
Independent Claim
8 words
The method of making a contact lens comprising:
Claim 9
Dependent Claim
6 words
cutting a lens from said mass;
Claim 10
Dependent Claim
6 words
cutting a lens from said mass;
Claim 11
Dependent Claim
32 words
subjecting said cut lens to polymerizing radiation for at least 5 minutes up to 4 hours to toughen said cut lens in both the dry state and when swollen with water; and
Claim 12
Dependent Claim
19 words
The method as claimed in claim 3, wherein the lens blank is irradiated prior to cutting the bevel edge.
Claim 13
Dependent Claim
21 words
The method as claimed in claim 3, wherein the lens is irradiated after cutting the bevel edge of the lens blank.
Claim 14
Dependent Claim
9 words
neutralizing and hydrating said cut lens in saline solution.
Claim 15
Dependent Claim
31 words
subjecting said cut mass to polymerizing radiation for at least 5 minutes up to 4 hours to toughen said cut mass in both the dry state and when swollen with water;
Claim 16
Dependent Claim
32 words
subjecting said cut mass to polymerizing radiation for at least 5 minutes up to 4 hours to toughen said cut mass in both the dry state and when swollen with water; and
Claim 17
Dependent Claim
9 words
neutralizing and hydrating said cut mass in saline solution.
Claim 18
Dependent Claim
10 words
neutralizing and hydrating said cut mass in saline solution; and,
Claim 19
Dependent Claim
42 words
The method as claimed in claim 3, wherein the center of the lens blank is cut and polished on both inner and outer surfaces to make its center thinner than the edges of the corneal section to thereby provide a minus correction.
Claim 20
Dependent Claim
28 words
The method as claimed in claim 3, wherein the lens blank is cut to make its corneal edges thinner than its center, to thereby provide a plus correction.
Claim 21
Dependent Claim
8 words
treating said cut mass with dilute hydrogen peroxide.
Claim 22
Dependent Claim
49 words
The method as claimed in claim 3, wherein the lens is cut and polished to be substantially the same thickness at its center and at its corneal edges, to thereby provide zero correction and produce a lens useful as a corneal bandage through which eye medicaments may be diffused.