Airless mixing with a by-pass syringe
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United States of America Patent
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Apr 7, 2015
Grant Date -
Dec 27, 2012
app pub date -
Jun 18, 2012
filing date -
Aug 6, 2009
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Abstract
A method for transferring and mixing a pharmaceutical mixture utilizing a by-pass cartridge and a syringe. After mixing the dry component and the diluent in the by-pass cartridge, the mixture can be passed to a syringe which includes a syringe plunger having a fluid passageway therein with a hydrophobic membrane covering the passageway. The mixture can be transferred back and forth between the by-pass cartridge and the syringe through a small bore to achieve mixing, particularly in the case of microspheres held in suspension.
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