Gas or air filled polymeric microballoons
US6200548A · kind A · utility
24Cited by
18References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1997 |
| Grant date | Mar 13, 2001 |
| Priority date | — |
| Expiry date | Aug 13, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K49/223
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Microballoons having a mean size in the range of 0.5 to 1000 microns bounded by a 50 to 500 nm thick biodegradable, interfacially deposited, synthetic polymer membrane which is both deformable and resilsient. These microballoons are used for ultrasonic echographic imaging of body organs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.