Patent ID: 6813964
Filing Date: 2004-11-09
Classification: A61M,G01F

Abstract:
A flow sensor device to obtain flow characteristics of a fluid flow system, the device comprising:a sensor assembly including: a body defining a first fluid flow passage having an inlet and an outlet, a flow restricting element located along the first fluid flow passage between the inlet and the outlet, an upstream fluid pressure sensor to sense an upstream fluid pressure at an upstream location in the first fluid flow passage between the inlet and the flow restricting element, a downstream fluid pressure sensor to sense a downstream fluid pressure at a downstream location in the first fluid flow passage between the flow restricting element and the outlet, an upstream signal contact connected to the upstream fluid pressure sensor, and a downstream signal contact connected to the downstream fluid pressure sensor; and a housing including an upstream portion and a downstream portion, the upstream portion defining an upstream port in fluid communication with the inlet of the sensor assembly, the downstream portion defining a downstream port in fluid communication with the outlet of the sensor assembly, the housing further defining a probe access port configured to provide access of a probe to at least one of the upstream signal contact and downstream signal contact.