NANOSCALE SURFACE ACTIVATION OF SILICONE VIA LASER PROCESSING
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United States of America Patent
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Issued Date -
Dec 11, 2008
app pub date -
Mar 3, 2008
filing date -
Mar 2, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention provides a method of activating a silicone polymer surface using a laser, particularly an excimer laser, so that the silicone is more reactive. A silicone article containing an activated surface is also provided, and can be used to make silicone implants that can be securely fixed to tissue. One example is an implantable prosthesis to treat blindness caused by outer retinal degenerative diseases. The device bypasses damaged photoreceptors and electrically stimulates the undamaged neurons of the retina. Electrical stimulation is achieved using a silicone microelectrode array (MEA). A safe, protein adhesive is used in attaching the MEA to the retinal surface and assist in alleviating focal pressure effects.
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