Patent ID: 9308326
Filing Date: 2016-04-12
CPC Classification: A61B,A61D,A61M,H02K

Claim Text:
1. A needle-free injector device for injecting a substance into a biological body, said device comprising: a reservoir for storing the substance; a nozzle in fluid communication with the reservoir; an electromagnetic actuator in mechanical communication with the reservoir; and a servo-controller for controlling the actuator, the servo-controller during operation causing the actuator to generate a force which produces a needle-free injection of the substance from the reservoir, through the nozzle, and into the biological body at an injection pressure determined by the force, the servo-controller being responsive to feedback of a physical property sensed during the injection, and wherein the servo-controller is adapted to dynamically vary the force generated by the actuator during the injection in response to the feedback.