Test of COVID Ventilators

COVID-19 is causing respiratory problems for a multitude of patients and is directly affecting hospitals, especially Intensive Care Units (ICU), where in many cases there are not enough mechanical ventilators to help patients to breathe. DEKRA laboratories are working on various projects of ventilator system manufactures. As these medical devices need to be assessed to […]

February 23, 2021
Leak Flow Compensation for Volume Measurement

What should be considered when measuring inhalation (Vti) and exhalation (Vte) volumes of ventilators with an intentional leak?For precise measurement of the tidal volumes, the leak flow must be compensated. An intentional leak, at the patient’s mouth, falsifies the inhalation and exhalation volumes. Intential leaks are common in non-invasive ventilators for CO2 washout. The leakage […]

February 23, 2021
ISO 17025 accredited calibration laboratory

With comparative measurements and a management system in accordance with the SN EN ISO/IEC 17025 standard assessed on a regular basis by EURAMET, METAS provides proof of its metrological competence within the framework of the “Mutual recognition of national measurement standards and of calibration and measurement certificates issued by national metrology institutes» (CIPM MRA).  The […]

February 23, 2021
Verifying Ventilator Operation with Gas Flow Analyzer

All ventilators should be tested after each use to verify performance before the unit is used for another patient. Ideally, a complete operational verification procedure, established by the facility and usually based on the manufacturer’s recommendations, will be performed each time. These procedures should be described in a facility’s policies and procedures. Find more about […]

February 22, 2021
What impact do Gas Standards on Flow or Volume measurements?

Feedback from biomedical engineers has shown us that many measurement errors of flow are caused by a mismatch between the gas standards used by the device under test (e.g. a medical ventilator) and the gas flow analyzer used for flow and volume testing. Keep in mind both devices are measuring the same gas flow but […]

September 24, 2020
Reliable Breath Detection in Gas Flow Analyzers

A ventilator tester or gas flow analyzer verifies independently settings and monitoring system of a medical ventilator with breath based parameters like inspiration (Pinsp) and expiration (PEEP) pressure, in- and expiratory tidal volumes (Vte, Vti), breath rate (RR) etc. To measure breath based parameters (= Respiratory Parameters) a gas flow analyser has to reliably detect […]

March 2, 2020
Preventive Maintenance of a Ventilator

Ventilators or respirators are devices used to assist patients in ventilating their lungs. There are many things to be done for a ventilator during a Preventive Maintainance check-up, most manufacturers recommend that a PM to be applied every 3 months of use, during which you will be prompted to do some or all of the following:  Inspect for any […]

February 17, 2020
Ventilators: The Importance of Preventative Maintenance

MedWrench recently spoke with Tenacore’s Biomedical Engineer, Charlie Pak, about the importance of preventative maintenance for ventilators. By Tenacore Tenacore shares the importance of keeping ventilators working properly, basic steps to follow for preventative maintenance, and how this preventative maintenance will save costs for health care facilities. Have a question for the expert or want […]

December 4, 2019
Effective Management of Ventilator Technology

The keys to effective ventilator management can be found in procurement, training, and the use of a team approach between RTs, clinicians, and the hospital biotechnology workers who keep the machines up and running. By Chris Hayhurst Theresa Bugbee, a biomedical equipment technician at the University of Vermont Medical Center in Burlington, sees each of […]

December 4, 2019
Ventilator Tester

Ventilator Testers are designed to evaluate the function of a ventilator by simulating the normal as well as pathological patient load conditions as would be present when attached to an actual patient. They are designed to be used for both adult and infant ventilators including conventional mechanical ventilation and high frequency ventilators. The tester provides […]

November 21, 2019
Medical Device Manufacturers Require Tighter Leak Test Requirements

Catheters, pacemakers, ventilators and dialysis filters are vastly different products. But, they all have one thing in common: they must be checked for leaks, whether into, or out of, an assembly. Medical devices often form a barrier between fluids or gases that could create dangerous conditions for patients if they were allowed to mix. Some […]

September 19, 2019
New machine to test lung functions available at GHCH

The new lung testing machine at Grays Harbor Community Hospital may look like an isolation tube on the set of a 1950s game show, but it provides potentially life-saving information about the people who venture inside and use it. Called a diagnostic body plethysmograph, it’s located in the hospital’s cardiopulmonary department for lung testing, patients […]

September 13, 2019