Bench for mounting and test of medical flowmeters

This test bench is a complete assembly and control solution for medical flowmeters. Use with an RFID badge, product identification by marking and datamatrix.

+33 2 52 56 04 20

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THE SOLUTION PROVIDED BY LF TECHNOLOGIES

Human-Machine Interface

Project support

Our client manufactures innovative medical equipment for patients with chronic respiratory diseases.

Main functions

Objective

Control breathing assistance turbine’s performance at several operating points of flow and pressure..

PROBLEMATIC ISSUES

Our client is developing a new product, he wants to test the conformity of the engine and the turbine before the final assembly. He also wants Research and Development tests to certify improvements and make the control more reliable.

SOLUTION AND RESULT

Calculations have shown that the basic principle of control can generate “false negatives”, i.e. it can potentially rule out good parts.
LF Technologies has therefore proposed a system enabling one of the parameters (speed) to be set precisely by means of an automatic servo-control, and also enabling tests to be carried out on a complete curve (flow rate, pressure, etc.) rather than on operating points (which are too restrictive) thanks to a proportional valve specifically designed to ensure good progressiveness and virtually zero pressure drop at full opening.
In addition, the automated fixing of the product eliminated a measurement hazard due to the deformation of the flexible body.
LF Technologies has developed an automatic, transportable bench capable of plotting pressure/flow curves at several rotation speeds with a pressure drop of only 10 mbar at 400 l/min.

Products tested

MEDICAL FLOWMETER

Medical flowmeters are pressure and flow control devices for medical air or gas used for respiratory assistance.

Turbine control bench

A test bench for monitoring the performance of turbines, ensuring the repeatability and reproducibility of the control process by automating operations.

Medical turbine

Turbine for respiratory assistance apparatus.

The turbine-engined is used to generate the flow of air sent to the patient. The breathing apparatus adapts the flow and pressure of the airflow by controlling the turbine speed, according to the patient's needs.

OUR KEY MODULE FOR THIS ASSEMBLY AND CONTROL BENCH Mo-A-Axe-posi-elec

Electric positioning axes allow positioning of a tool or sensor with precise control of position and speed. They can be combined to create multi-axis, rotary or linear systems.

These axes can be controlled in positioner mode, in trajectory mode or servo-controlled according to a measurement.