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1. (WO2017040202) FLOW SENSOR SYSTEM INCLUDING TRANSMISSIVE CONNECTION

Pub. No.:    WO/2017/040202    International Application No.:    PCT/US2016/048689
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Fri Aug 26 01:59:59 CEST 2016
IPC: A61M 5/168
A61M 5/172
A61M 39/10
G01F 1/66
Applicants: CRISI MEDICAL SYSTEMS, INC.
Inventors: DEKALB, Shawn, Wayne
Title: FLOW SENSOR SYSTEM INCLUDING TRANSMISSIVE CONNECTION
Abstract:
A flow sensor sub-assembly includes a flow tube having a lumen, an outside diameter, a first end, and a second end. An inlet fitting includes a conical orifice sized for insertion in either end of the flow tube, such that an internal passage of the inlet fitting is coaxial and concentric with the lumen and the end of the flow tube abuts a shoulder. An outlet fitting includes a conical orifice sized for insertion in either end of the flow tube, such that an internal passage of the inlet fitting is coaxial and concentric with the lumen and the end of the flow tube abuts a shoulder. A first piezo element integrated with the inlet fitting is arranged at an upstream position of the flow tube assembly and a second piezo element integrated with the outlet fitting is arranged at a downstream position of the flow tube assembly.