Microneedle and a chip
US11160963B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2016 |
| Grant date | Nov 2, 2021 |
| Priority date | — |
| Expiry date | Apr 3, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2037/0053
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A microneedle and a chip are disclosed for extraction of fluids. The microneedle (101) provided on a substrate (102), comprises an elongated body (503) extending from a distal end (504) with a bevel (505) to a proximal end (506) on the substrate along a longitudinal axis; the elongated body comprises a capillary bore (507) extending in a longitudinal direction thereof and defines a fluid path (508); the proximal end is integrally connected with the substrate and the capillary bore is in fluid communication with a fluid channel (309) of the substrate. The cross-sectional area of the capillary bore in the distal end is larger than the cross-sectional area of the capillary bore in the proximal end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.