Ultrasonic contrast agent with polymeric gas or air filled microballoons
US5840275A · kind A · utility
23Cited by
15References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1994 |
| Grant date | Nov 24, 1998 |
| Priority date | — |
| Expiry date | Aug 16, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K49/223
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Ultrasonic contrast compositions containing gas or air filled 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 deformable and resilient in an aqueous carrier liquid are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.