Therapeutic microfoam
First Claim
Patent Images
1. A microfoam comprising a physiologically acceptable gas that is dispersible in blood and an aqueous sclerosant liquid characterized in that the microfoam has a density of from 0.07 to 0.19 g/cm3 and is capable of being passed down a 21 gauge needle without reverting back to gas and liquid by more than 10%, based on liquid content reverting back to unfoamed liquid phase.
0 Assignments
0 Petitions
Accused Products
Abstract
Improved therapeutic sclerosing microfoams are provided that have advantage in producing a consistent profile injectable foam with minimal input by the physician yet using high volume percentages of blood dispersible gases, thus avoiding use of potentially hazardous amounts of nitrogen.
-
Citations
15 Claims
- 1. A microfoam comprising a physiologically acceptable gas that is dispersible in blood and an aqueous sclerosant liquid characterized in that the microfoam has a density of from 0.07 to 0.19 g/cm3 and is capable of being passed down a 21 gauge needle without reverting back to gas and liquid by more than 10%, based on liquid content reverting back to unfoamed liquid phase.
-
2. A microfoam comprising a physiologically acceptable gas that is dispersible in blood and an aqueous sclerosant liquid characterized in that the microfoam has a density of from 0.07 to 0.19 g/cm3 and is capable of being passed down a 21 gauge needle such that 50% or more by number of its gas bubbles of at least 25 μ
- m remain at 150 μ
m diameter or less and at least 95% of these bubbles at 280 μ
m diameter or less.
- m remain at 150 μ
Specification