Shape memory polymer intraocular lenses
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United States of America Patent
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Aug 30, 2016
Grant Date -
Jun 19, 2014
app pub date -
Sep 13, 2013
filing date -
Mar 7, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A shape memory polymer (SMP) intraocular lens may have a refractive index above 1.45, a Tg between 10° C. and 60° C., inclusive, de minimis or an absence of glistening, and substantially 100% transmissivity of light in the visible spectrum. The intraocular lens is then rolled at a temperature above Tg of the SMP material. The intraocular device is radially compressed within a die to a diameter of less than or equal to 1.8 mm while maintaining the temperature above Tg. The compressed intraocular lens device may be inserted through an incision less than 2 mm wide in a cornea or sclera or other anatomical structure. The lens can be inserted into the capsular bag, the ciliary sulcus, or other cavity through the incision. The SMP can substantially achieve refractive index values of greater than or equal to 1.45.
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International Classification(s)
- A61K:PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOS....
- B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....
- A61F:FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES....
- B29D:PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FRO....
- B29L:INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RE....
- A61L:METHODS OR APPARATUS FOR STERILISING MATERIALS OR ....
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