Patent ID: 6554791
Filing Date: 2003-04-29
Classification: A61M,F04B

Abstract:
A rapid infusion system for delivery of an infusium to a patient comprising:a. a pump assembly; b. a fluid containment assembly comprising upstream conduit, downstream conduit and a self-leveling drip chamber therebetween that maintains an appropriate volume of infusium to avoid introduction of air in the downstream conduit, wherein the self-leveling drip chamber comprises: i. a fluid well having a top and bottom; ii. an inlet port in communication with the upstream conduit; and iii. an outlet port in communication with the downstream conduit; c. a vent cap in communication with the drip chamber; d. a means for exerting a negative pressure in the drip chamber through the vent cap; e. at least one fluid level sensor to detect fluid level in the fluid well; and f. an automated controller that receives electronic signals from the at least one fluid level sensor and sends an electronic signal to the means for exerting a negative pressure to remove air from the fluid well through the vent cap as necessary to maintain a selected fluid volume in the drip chamber.