{"id":38434,"date":"2024-03-26T16:40:36","date_gmt":"2024-03-26T16:40:36","guid":{"rendered":"https:\/\/www.alicat.com\/?post_type=article&p=38434"},"modified":"2026-01-26T20:52:33","modified_gmt":"2026-01-26T20:52:33","slug":"durchatmen-mit-alicat-durchflussreglern","status":"publish","type":"support","link":"https:\/\/www.alicat.com\/de\/support\/breathing-easy-with-alicat-flow-controllers\/","title":{"rendered":"Kalibrierung und \u00dcberpr\u00fcfung von Beatmungsger\u00e4ten, die zur Behandlung von COVID-19-Patienten eingesetzt werden"},"content":{"rendered":"\n[et_pb_section fb_built=”1″ _builder_version=”4.23.1″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_row _builder_version=”4.23.1″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_column type=”4_4″ _builder_version=”4.23.1″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_heading title=”Calibrating and verifying ventilators used to treat COVID-19 patients” _builder_version=”4.23.1″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][\/et_pb_heading][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”]The COVID-19 pandemic has resulted in unprecedented challenges for modern medicine. Procuring and manufacturing the medical supplies needed for hospital staff to support the critically ill while protecting themselves from the disease has become a priority for governments everywhere. To meet growing demand, companies that manufacture ventilators are working hard to increase output. Due to their repeatability and accuracy, Alicat flow controllers<\/a> and pressure controllers<\/a> are being used in ventilator test stands to calibrate and test these new ventilators.\n

Calibration stations<\/h2>\nAlicat mass flow and pressure controllers are used as calibration standards in the manufacturing process. Our controllers offer an industry leading controllable range, and feed a variety of setpoints to a ventilator to test accuracy and repeatability of these life support devices. This ensures ventilators are operating within the desired parameters.\n\nVentilators require specific flow rates and pressure conditions to ensure sufficient oxygen delivery to patients, making accurate calibration of ventilators very important. The oxygen concentration in the air being delivered is set depending on FiO2 (Fraction of Inspired Oxygen), which is the lowest amount of oxygen that can help the patient reach the level of required blood oxygenation.\n\nBecause lung capacity varies by individual, a ventilator needs to be able to flow different amounts of oxygen-rich air to each patient with great accuracy. The amount of air a ventilator pumps into a patient\u2019s lungs is dependent on many different factors which include lung function and oxygen saturation in the blood. Mechanical ventilation can be triggered by oxygen saturation levels or by a pre-determined number of breaths per minute. It is very important that the ventilator is calibrated against a reliable and stable standard so displayed flow rate and the actual flow rate being inspired is the same every time (repeatability).\n

Verification and testing<\/h2>\nTo ensure each ventilator is operating within the required specifications for all settings used in the field, the calibrated ventilators must go through a testing process to ensure they are operating at a set standard. This testing process is crucial to determining the performance of the device.\n\nAlicat mass flow meters output flow rate, pressure, and temperature to confirm that the ventilators are supplying oxygen at the desired conditions. In a wide range of available options, protocols, and measurement ranges, Alicat devices offer ease of automation to increase the efficiency of the testing process.\n

Solution: Alicat mass flow and pressure controllers<\/h2>\nAlicat devices meet critical calibration standards to ensure proper operation in calibration, verification, and testing processes for ventilators. The standards these test benches must meet include specifications<\/a> such as: repeatability, accuracy, and control response time.\n