Coating processes – Medical or dental purpose product; parts; subcombinations;...
Reexamination Certificate
2005-11-18
2011-11-15
Meeks, Timothy (Department: 1715)
Coating processes
Medical or dental purpose product; parts; subcombinations;...
C427S002110, C427S002120, C427S002280, C427S428010, C604S046000, C604S239000, C604S272000
Reexamination Certificate
active
08057842
ABSTRACT:
A method of coating a microneedle array by applying a coating fluid using a flexible film in a brush-like manner. A method of coating a microneedle array comprising: providing a microneedle array having a substrate and a plurality of microneedles; providing a flexible film; providing a coating solution comprising a carrier fluid and a coating material; applying the coating solution onto a first major surface of the flexible film; performing a transfer step of bringing the first major surface of the flexible film into contact with the microneedles and removing the flexible film from contact with the microneedles; and allowing the carrier fluid to evaporate. Also, a method of coating a microneedle array by applying a coating solution onto a first major surface of a coating substrate to form a layer of applied coating solution having a thickness equal to or less than the height of at least one of the microneedles and performing a transfer step of bringing the first major surface of the coating substrate into contact with the microneedles and removing the coating substrate from contact with the microneedles, thereby transferring at least a portion of the coating solution to the microneedle array.
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Choi Hye-Ok
David Moses M.
Knutson Gordon P.
3M Innovative Properties Company
Meeks Timothy
Sellman Cachet
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