Molded micro-needles

Details Molded micro-needles Molded micro-needles

2011-07-19

2011-07-19

Lucchesi, Nicholas D (Department: 3763)

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

C264S154000, C604S289000

Reexamination Certificate

active

07981346

ABSTRACT:
Method of hollow micro-projections having side walls and at least one opening in a side wall, by a molding technique. The hollow micro-projections are defined by a first, negative mold defining the exterior shape of the micro-projections and a second, positive mold defining the hollow interior shape of the micro-projections. The method includes injecting a moldable material into the space between the two molds, in a state where they have been brought together. The positive and negative molds each have an essentially cylindrical geometry. In the process of bringing the molds together, the mold halves are laterally off-set with respect to each other, such that the distance between an inner wall of the negative mold and the positive mold in the area, ranges from zero to a finite distance. Micro-projections and arrays of micro-projections are also disclosed.

REFERENCES:
patent: 4838877 (1989-06-01), Massau
patent: 6379324 (2002-04-01), Gartstein et al.
patent: 6451240 (2002-09-01), Sherman et al.
patent: 6629949 (2003-10-01), Douglas
patent: 6881203 (2005-04-01), Delmore et al.
patent: 6899838 (2005-05-01), Lastovich
patent: 7578954 (2009-08-01), Gartstein et al.
patent: 2002/0004643 (2002-01-01), Carmel et al.
patent: 2002/0020688 (2002-02-01), Sherman et al.
patent: 2002/0082543 (2002-06-01), Park et al.
patent: 2002/0138049 (2002-09-01), Allen et al.
patent: 2002/2019375 (2002-12-01), CHO
patent: 2003/0009113 (2003-01-01), Olson
patent: 2003/0045837 (2003-03-01), Delmore et al.
patent: 2003/0093040 (2003-05-01), Mikszta et al.
patent: 2003/0135166 (2003-07-01), Gonnelli
patent: 2003/0135167 (2003-07-01), Gonnelli
patent: 2003/0199810 (2003-10-01), Trautman et al.
patent: 2004/0039343 (2004-02-01), Eppstein et al.
patent: 2004/0106904 (2004-06-01), Gonnelli et al.
patent: 2004/0265365 (2004-12-01), Daddona et al.
patent: 2005/0137531 (2005-06-01), Prausnitz et al.
patent: WO 00 35530 (2000-06-01), None
patent: WO 03 015860 (2003-02-01), None

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