Method of attaching a haptic to an optic of an intraocular lens
AssigneeNestle S.A.
InventorAnilbhai S. Patel
Life of this patent
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Abstract
A method for attaching a pair of colored haptics (20) to an optic (10) of an intraocular lens (1), containing the steps of providing the peripheral edge (17) of the optic (10) with a pair of holes (12), inserting the end portions (21) of the haptics (20) into the holes (12), aiming a laser emitting radiation within the visible spectrum at the end portion (21) of the haptic within the hole (12) in the optic (10) and firing the laser so that the radiation passes through the optic (10) essentially without absorption and is absorbed by the haptic (20), thereby causing the haptic (20) to fuse with the optic (10).
Claims55
A method for attaching at least one colored haptic to an optic of an intraocular lens, comprising the steps of:
- a. providing a peripheral edge of the optic with at least one hole;
- b. inserting an end of the haptic into the hole;
- c. aiming at a portion of the haptic within the hole a laser having a power level of less than 5 watts and emitting radiation within a visible spectrum that is matched to the radiation absorption spectrum of the colored haptic;
- and
- d. firing the laser so that the radiation passes through the optic essentially without absorption and is absorbed by the haptic, thereby causing the haptic to fuse with the optic.
The method of claim l wherein the laser comprises an Argon laser.
A method for attaching at least one colored haptic to an optic of an intraocular lens, comprising the steps of:
- a. drilling at least one hole in a peripheral edge of the optic;
- b. inserting an end of the haptic into the hole;
- c. aiming at a portion of the haptic within the hole a laser having a power level of less than 5 watts and emitting radiation within a wavelength range of approximately between 400 nanometers and 700 nanometers that is matched to the radiation absorption spectrum of the colored haptic;
- and
- d. firing the laser so that the radiation passes through the optic essentially without absorption and is absorbed by the haptic, thereby causing the haptic to use with the optic.
A method for attaching at least one colored haptic to an optic of an intraocular lens, comprising the steps of:
- a. forming the haptic from polymethylmethacrylate with a copper phthalocyanine-doped core;
- b. drilling a peripheral edge of the optic with at least one hole;
- c. inserting an end of the haptic into the hole;
- d. aiming at a portion of the haptic within the hole an Argon laser having a power level of less than 5 watts and emitting radiation within the visible spectrum that is matched to the radiation absorption spectrum of the colored haptic;
- and
- e. firing the laser so that the radiation passes through the optic essentially without absorption and is absorbed by the copper phthalocyanine-doped core, thereby causing the haptic to fuse with the optic.
A method for attaching at least one colored haptic to optic of an intraocular lens, comprising the steps of:
- a. forming the haptic from polymethylmethacrylate with a copper phthalocyanine-doped core;
- b. drilling a peripheral edge of the optic with at least one hole;
- c. inserting an end of the haptic into the hole;
- d. aiming at a portion of the haptic within the hole a Krypton laser having a power level of less than 5 watts and emitting radiation within the visible spectrum that is matched to the radiation absorption spectrum of the colored haptic;
- and
- e. firing the laser so that the radiation passes through the optic essentially without absorption and is absorbed by the copper phthalocyanine-doped core, thereby causing the haptic to fuse with the optic.
A method for attaching at least one colored haptic to an optic of an intraocular lens, comprising the steps of:
- a. forming the haptic from polymethylmethacrylate with a copper phthalocyanine-doped core;
- b. drilling a peripheral edge of the optic with at least one hole;
- c. inserting an end of the haptic into the hole;
- d. aiming at a portion of the haptic within the hole a tunable dye laser having a power level of less than 5 watts and emitting radiation with a visible wavelength that is matched to the radiation absorption spectrum of the colored haptic;
- and
- e. firing the laser so that the radiation passes through the optic essentially without absorption and is absorbed by the copper phthalocyanine-doped core, thereby causing the haptic to fuse with the optic.
Dependencies are inferred from the claim text.