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Wearable Transdermal Drug Delivery Devices based on Piezoelectric Micropumps Integrated with Micro needles Array

Digest of Technical Papers - SID International Symposium, ISSN: 2168-0159, Vol: 55, Issue: S1, Page: 1271-1275
2024
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Conference Paper Description

Transdermal drug delivery refers to a drug delivery route that delivers drugs through the skin to produce local or systemic therapeutic effects. In this work, we propose a parallel valvelesspiezo electric micropump integrated with hollow microneedle array, which can be used in flexible wearable transdermal drug delivery systems. The device consists of two valveless piezo electricmic ropump, a hollow microneedle array and an electrical control module. The main structure of micropump and the hollow micro needle array are fabricated using 3D printing technology. The valveless piezoelectric micropump adopts a parallel dualpump structure with asynchronous drive, which achieves a full forward flow at the outlet and reduces the influence of back flowon the stability of the system. In addition, the parallel dual-pumpstructure proposed in this work can be extended to a multi micro pumpparallel structure. We hope to fabricate small-size micropump arrays on flexible substrates and integrate them into flexible wearable transdermal drug delivery systems.

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