Resilient deformable microballoons for echographic imaging
US6123922A · kind A · utility
15Cited by
15References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1997 |
| Grant date | Sep 26, 2000 |
| Priority date | — |
| Expiry date | Sep 12, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K49/223
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Air or gas filled microballoons bounded by an interfacially deposited polymer membrane which can be dispersed in aqueous carrier liquids to be injected into living organisms or administered orally, rectally and urethrally for therapeutic or diagnostic purposes (echography). The properties of the polymeric membrane of the microballoons (elasticity, permeability, biodegradability) can be controlled at will depending on the selected polymer, the interfacial deposition conditions, and the polymer additives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.