Patent ID: 7988668
Filing Date: 2011-08-02
Classification: A61M

Abstract:
1. A microsyringe comprising: a pharmaceutical reservoir chamber; a pressurizable hydraulic fluid chamber; a barrier moveably disposed between the pharmaceutical reservoir chamber and the pressurizable hydraulic fluid chamber, the barrier fluidly isolating the pharmaceutical reservoir chamber from the pressurizable hydraulic fluid chamber; an inlet fluidly connected to the pressurizable hydraulic fluid chamber, the inlet comprising a fitting to mechanically and fluidly connect to a corresponding mating of a hydraulic fluid delivery system to provide hydraulic fluid to the pressurizable hydraulic fluid chamber, the inlet providing hydraulic fluid to the pressurizable hydraulic fluid chamber without loss of pressure; a single flow regulator directly and fluidly connected to the pharmaceutical reservoir chamber and configured to prevent a delivery rate of a pharmaceutical in the pharmaceutical reservoir chamber from exceeding a predetermined maximum rate; and a cannula connected to the flow regulator.