In-vivo magnetic detection of magnetic nanoparticles using microneedles
US11039789B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2019 |
| Grant date | Jun 22, 2021 |
| Priority date | — |
| Expiry date | Dec 25, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0223
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Systems and methods are described that enable sensing of magnetic fields within skin tissue. Specifically, a system includes one or more microneedles that include a high magnetic permeability material. The system also includes a magnetic sensor communicatively coupled to the microneedle and configured to detect a magnetic field proximate to the microneedle. The system also includes a controller configured to receive information indicative of a magnetic field proximate to a portion of the microneedle. The controller is further configured to determine a presence of at least one magnetic nanoparticle proximate to the portion of the microneedle based on the received information. Alternatively, other embodiments include a microneedle that includes a nanodiamond material configured to detect a local magnetic field. Such embodiments also include a light source configured to cause the nanodiamond material to emit characteristic emission light that may indicate at least a magnitude of the magnetic field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.