MR-visible medical device for neurological interventions using nonlinear magnetic stereotaxis and a method imaging
US6272370A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Aug 7, 1998 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | Aug 7, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/3954
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention comprises a device and method for targeted drug delivery, and especially intracranial inflsion or retroperfusion drug delivery using nonlinear magnetic stereotaxis in combination with magnetic resonance (MR) imaging and/or X-ray visualization. An MR-visible and/or X-ray visible drug delivery device is positioned by non-linear magnetic stereotaxis at a site such as an intracranial target site, its location is verified via MR imaging, and it is then used to deliver a biologically active material such as a diagnostic or therapeutic drug solution into that site (such as the brain) at constant or variable rates. The spatial distribution kinetics of the injected or infised drug agent may be monitored quantitatively and non-invasively using real-time MR-imaging such as water proton directional diffusion MR imaging, to establish the efficacy of targeted drug delivery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.