Generation of therapeutic microfoam
First Claim
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1. A method for producing a microfoam suitable for use in sclerotherapy of blood vessels, comprising:
- passing a mixture of at least one physiologically acceptable blood dispersible gas including oxygen, carbon dioxide or a mixture thereof and at least one aqueous sclerosant liquid through one or more passages thereby producing the microfoam,wherein a ratio of gas to liquid is such that the microfoam that is produced has a half-life of at least 2 minutes and a density ranging from 0.07 g/ml to 0.19 g/ml.
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Abstract
Improved therapeutic sclerosing microfoams and methods and devices for making them 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.
58 Citations
37 Claims
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1. A method for producing a microfoam suitable for use in sclerotherapy of blood vessels, comprising:
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passing a mixture of at least one physiologically acceptable blood dispersible gas including oxygen, carbon dioxide or a mixture thereof and at least one aqueous sclerosant liquid through one or more passages thereby producing the microfoam, wherein a ratio of gas to liquid is such that the microfoam that is produced has a half-life of at least 2 minutes and a density ranging from 0.07 g/ml to 0.19 g/ml. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for producing a microfoam suitable for use in sclerotherapy of blood vessels, comprising:
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passing a mixture of at least one physiologically acceptable blood dispersible gas including 60-90% vol/vol oxygen, 10-40% vol/vol carbon dioxide or a mixture thereof and at least one aqueous sclerosant liquid through one or more passages thereby producing the microfoam, wherein a ratio of gas to liquid is such that the microfoam that is produced has a half-life of at least 2 minutes and a density ranging from 0.07 g/ml to 0.19 g/ml. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification