IOLs and production methods for same
First Claim
1. A method of producing an intraocular lens including an optic and at least one fixation member having a proximal end portion located in the optic, said method comprising:
- placing a precursor composition of a cross-linked silicone polymeric material into a recess in an optic member comprising a silicone polymeric material;
thereafterplacing the proximal end portion of said fixation member into said recess, the proximal end portion of said fixation member being subjected to no high frequency corona discharge or plasma activation and having no coating of a primer component or of said precursor composition of a silicone polymeric material; and
subjecting said optic member and said fixation member in said recess to conditions effective to cure said precursor composition and form a combination having a pull strength between said fixation member and said optic member in excess of 50 grams minimum.
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Accused Products
Abstract
New intraocular lenses (IOLs) and methods for producing IOLs. The present methods include a combination of steps which increase the pull strength between the fixation member of the IOL and the optic of the IOL without requiring sophisticated high frequency corona discharge activation or plasma activation or other exotic activation of the fixation member or primer coating of the fixation member. The silicone polymeric optic members employed in the present invention can be formed, for example, molded, without recesses to accommodate the fixation members. Such recesses can be formed and provided with a quantity of silicone polymeric material precursor composition after the optic members are produced. The fixation members are then placed in the recesses and secured to the optic members. The present methods are straight forward, easy to practice and are cost effective in producing high quality IOLs.
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Citations
16 Claims
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1. A method of producing an intraocular lens including an optic and at least one fixation member having a proximal end portion located in the optic, said method comprising:
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placing a precursor composition of a cross-linked silicone polymeric material into a recess in an optic member comprising a silicone polymeric material;
thereafterplacing the proximal end portion of said fixation member into said recess, the proximal end portion of said fixation member being subjected to no high frequency corona discharge or plasma activation and having no coating of a primer component or of said precursor composition of a silicone polymeric material; and subjecting said optic member and said fixation member in said recess to conditions effective to cure said precursor composition and form a combination having a pull strength between said fixation member and said optic member in excess of 50 grams minimum. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of producing an intraocular lens including an optic and at least one fixation member having a proximal end portion located in the optic, said method comprising:
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forming a recess in an optic member which comprises a silicone polymeric material, said recess having a size sufficient to accept the proximal end portion of said fixation member; placing a precursor composition of a cross-linked silicone polymeric material into said recess;
thereafterplacing the proximal end portion of said fixation member into said recess, the proximal end portion of said fixation member being subjected to no high frequency corona discharge or plasma activation and having no coating of a primer component or of said precursor composition of a silicone polymeric material; and subjecting said optic member and said fixation member in said recess to conditions effective to cure said precursor composition and form a combination having a pull strength between said fixation member and said optic member in excess of 50 grams minimum. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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Specification