Medical powder
US6162469A · kind A · utility
7Cited by
1References
5Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 29, 1999 |
| Grant date | Dec 19, 2000 |
| Priority date | — |
| Expiry date | Mar 29, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/5073
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A safe medical powder with excellent performances which is a magnetosensitive powder for diagnosis, therapy, or drug delivery and which, even when placed in the body for a prolonged period, neither suffers a decrease in magnetic sensitivity nor releases ions, etc. The medical powder comprises a base particle of a ferromagnetic metal having thereon a coating layer, wherein at least the outside of the coating layer comprises a bioinert substance. Preferably, the coating layer comprising a bioinert substance comprises a layer comprises a hydrolysate of an alkoxide compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.