Interstitial fluid sampling above microneedle array
US10105080B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2014 |
| Grant date | Oct 23, 2018 |
| Priority date | — |
| Expiry date | Mar 11, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/1726
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Devices are provided that include a plurality of microneedles that penetrate skin and that receive interstitial fluid from the skin tissue. The microneedles are further configured to direct the received interstitial fluid to nanosensors configured to change an optical property based on interaction with an analyte in the received interstitial fluid, allowing optical detection of the analyte. Direction of the received interstitial fluid to the nanosensors can be facilitated by a pump configured to control the flow rate of the interstitial fluid through the microneedles. Such devices could be configured to detect the analyte independently or in combination with a reader device configured to be periodically mounted to the devices and to detect the analyte. Further, such devices can include delivery systems configured to transdermally deliver a drug or other substance into or through the skin in response to a detected concentration, presence, or other property of the analyte.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.