Patent ID: 8734384
Filing Date: 2014-05-27
Classification: A61K,A61M

Abstract:
1. A method of delivering a formulation from a needle free injector, comprising: actuating a needle free injector to pressurize a liquid formulation and cause the formulation to be injected through an orifice of the injector; continuing to pressurize the formulation to create a pressure profile vs. time curve after actuation which curve comprises a skin puncture phase comprising a main pressure peak with a maximum pressure; and further continuing to pressurize the formulation through a delivery phase following the skin puncture phase which delivery phase occurs at a lower pressure compared to the maximum pressure of the main pressure peak, the delivery phase characterized by a delivery time per 0.5 mL of injectate per orifice, wherein the delivery time and the peak pressure are chosen to satisfy the relationship: wherein TotIT