Wearable apparatus containing a digitally controlled degradeable microneedle array for intradermal drug delivery
US12239810B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2020 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | Sep 7, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2230/50
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A drug delivery device having an array of solid microneedles embedded with drugs and a light-to-heat-transducing (LTHT) element and a flexible printed circuit board containing a light source, such as a light emitting diode, which can be activated to release the drug embedded in the microneedles through localized melting. The device is worn in contact with the skin of a user, which enables the microneedles penetrate the upper layers of the user's skin. Although in contact with a user's skin, the drugs are not delivered until the device is activated. Activation can occur by an external signal received by the device or through a signal based on a physiological state of the user determined through a sensor in a closed-loop control system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.