Miniature needle array for medicine transmission and its making process
A technology for microneedle arrays and manufacturing methods, which is applied in the direction of microneedles, techniques for producing decorative surface effects, separation methods, etc., which can solve the problems of needles without sharp ends, complexity, and high requirements for the production process of microneedle arrays, and achieve production costs. Low, good drug delivery effect
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Embodiment 10
[0054] The making of embodiment 10×10 microneedle array
[0055] The following parameters are considered when designing the microneedle array: the size of the main structure, the three-dimensional structure size of the microneedle structure, the thickness of the surface modification material, and so on. The designed pattern is made into a mask (as shown in Figure 2), which can be used as a mask for oxide layer etching and SU-8 photolithography at the same time, so as to be transferred to silicon wafers containing oxide layers and SU-8 photolithography. -8 on substrate. When making the layout, you can change the base area of the microneedle array, the number of microneedles, the three-dimensional structure of the needle, the distance between the needle tips and the height of the needle tip according to the actual application needs: change the unit area of the microneedle array on the mask according to the toughness and thickness of the skin that need to be penetrated , so ...
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