Wettable ePTFE medical devices

Details Wettable ePTFE medical devices Wettable ePTFE medical devices

2011-04-12

2011-04-12

Barr, Michael (Department: 1711)

Coating processes

Medical or dental purpose product; parts; subcombinations;...

C606S041000, C204S164000, C604S265000, C604S230000, C427S002120, C427S430100

Reexamination Certificate

active

07923053

ABSTRACT:
Methods are provided for surface modifying a hydrophobic polymer substrate to increase wettability comprising the steps of pre-treating the hydrophobic polymer substrate with a radio frequency (RF)-generated first plasma and a RF-generated second plasma wherein the first plasma and the second plasma are applied sequentially, coating the hydrophobic polymer substrate with a hydrophilic coating; and polymerizing the hydrophilic coating on the hydrophobic polymer substrate by exposure to a RF-generated third plasma.

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International Searching Authority Report, Apr. 2, 2008.
Zhang, et al., Biocompatibility Evaluation of ePTFE Membrane Modified with PEG in Atmospheric Pressure Glow Discharge, JJ. Biomde. Mater. Res., vol. 60:pp. 502-509, 2002.
Zhang, Q., et al., “Biocompatibility evaluation of ePTFE membrane modified with PEG in atmospheric pressure glow discharge”, JJ. Biomed, Mater. Res., vol. 60, pp. 502-509, 2002.

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