Patent ID: 6669669
Filing Date: 2003-12-30
Classification: A61M,Y10S

Abstract:
A device for delivering fluid to a patient, comprising:A) an exit port assembly adapted to connect to a transcutaneous patient access and B) a dispenser including, a first layer defining a passageway connected to the exit port assembly and an opening in fluid communication with the passageway, a resilient diaphragm received on the first layer covering the opening such that the opening and the diaphragm define an expandable accumulator, a second layer received over the diaphragm on the first layer, the second layer having a pulse chamber over the diaphragm and in alignment with the opening of the first layer, and a port in fluid communication with the pulse chamber, and a third layer received on the second layer and defining a secondary chamber in fluid communication with the port of the second layer, wherein the surface of the first layer further defines an occlusion sensor recess in the passageway.