Long-lasting aqueous dispersions or suspensions of pressure-resistant gas-filled microvesicles and methods for the preparation thereof
US6881397B2 · kind B2 · utility
3Cited by
75References
26Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 4, 2002 |
| Grant date | Apr 19, 2005 |
| Priority date | — |
| Expiry date | Aug 22, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K49/223
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
One can impart outstanding resistance against collapse under pressure to gas-filled microvesicle used as contrast agents in ultrasonic echography by using as fillers gases whose solubility in water, expressed in liter of gas by liter of water under standard conditions, divided by the square root of the molecular weight does not exceed 0.003.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.