Long-lasting aqueous dispersions or suspensions of pressure-resistant gas-filled microvesicles and methods for the preparation thereof
US5578292A · kind A · utility
108Cited by
5References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 30, 1995 |
| Grant date | Nov 26, 1996 |
| Priority date | — |
| Expiry date | Jan 30, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/929
- 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.