Patent ID: 6692457
Filing Date: 2004-02-17
Classification: A61M

Abstract:
A device for delivering fluid to a patient, comprising:A) an exit port assembly adapted to connect to a transcutaneous patient access tool; B) a flow path extending from the exit port assembly; and C) a flow condition sensor assembly including, a resilient diaphragm having opposing first and second surfaces, with the first surface positioned against the flow path, a chamber wall positioned adjacent the second surface of the diaphragm and defining a sensor chamber adjacent the second surface of the diaphragm, and at least one sensor arranged to provide a threshold signal when the second surface of the diaphragm expands into the chamber in response to at least one predetermined fluid flow condition occurring in the flow path, wherein the sensor comprises a switch positioned within the chamber such that the second surface of the diaphragm closes the switch upon expanding into the chamber in response to the predetermined fluid flow condition within the flow path.