Method of molding a microneedle
First Claim
1. A method of molding a microneedle comprising:
- (i) providing a mold apparatus comprising;
a mold insert having the negative image of at least one microneedle;
a compression core;
a mold housing configured to allow a reciprocal motion between the mold insert and the compression core; and
sidewalls having an overflow vent and an injection gate and the polymeric material is injected through the injection gate into the closed mold apparatus;
wherein the mold apparatus has an open position and a closed position;
(ii) placing the mold apparatus in the closed position;
(iii) injecting polymeric material into the closed mold apparatus;
(iv) compressing the injected polymeric material between the mold insert and the compression core by a reciprocal motion between the compression core and the mold insert;
(v) opening the mold; and
(vi) removing a molded microneedle from the mold;
wherein the mold insert has a mold insert height and the molded microneedle has a height that is from about 90% of the mold insert height to about 115% of the mold insert height; and
wherein the mold insert has the negative image of a plurality of microneedles in the form of an array comprising a plurality of microneedles integrally formed with a substrate.
4 Assignments
0 Petitions
Accused Products
Abstract
A method of molding a microneedle including providing a mold apparatus having a mold insert having the negative image of at least one microneedle, a compression core, a mold housing configured to allow a reciprocal motion between the mold insert and the compression core. The method includes placing the mold apparatus in a closed position, injecting polymeric material into the closed mold apparatus, compressing the injected polymeric material between the mold insert and the compression core by a reciprocal motion between the compression core and the mold insert, opening the mold, and removing a molded microneedle from the mold. The mold insert has a mold insert height and the molded microneedle has a height that is from about 90% of the mold insert height to about 115% of the mold insert height.
95 Citations
17 Claims
-
1. A method of molding a microneedle comprising:
-
(i) providing a mold apparatus comprising; a mold insert having the negative image of at least one microneedle; a compression core; a mold housing configured to allow a reciprocal motion between the mold insert and the compression core; and sidewalls having an overflow vent and an injection gate and the polymeric material is injected through the injection gate into the closed mold apparatus; wherein the mold apparatus has an open position and a closed position; (ii) placing the mold apparatus in the closed position; (iii) injecting polymeric material into the closed mold apparatus; (iv) compressing the injected polymeric material between the mold insert and the compression core by a reciprocal motion between the compression core and the mold insert; (v) opening the mold; and (vi) removing a molded microneedle from the mold; wherein the mold insert has a mold insert height and the molded microneedle has a height that is from about 90% of the mold insert height to about 115% of the mold insert height; and wherein the mold insert has the negative image of a plurality of microneedles in the form of an array comprising a plurality of microneedles integrally formed with a substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
Specification