Method for calibrating a pressure sensor or a flow sensor on a rotary pump
Опубликовано: 13-06-2002
Автор(ы): Christoph Nix, Stefan Boensch, Thorsten Sies
Принадлежит: Impella Cardiosystems GmbH, Impella Cardiotechnik AG
Реферат: The invention relates to an intracardiac rotating pump (10) which is provided with a differential pressure sensor (18) for supporting a pumping heart. The differential pressure sensor measures the differential pressure between the aorta (AO) and the left ventricle (LV). Said difference in pressure must correspond to defined set values at different speed stages. If said differential pressure is very different from said set value, the difference is recognised as a drift of the pressure sensor and in accordance therewith a correction value is determined, wherein the subsequent measured pressure values are corrected. Due to said invention, it is possible to carryout a drift correction of the pressure sensor in a pump located in the heart even when a pump is in operation.
Systems and methods for detecting suction events in blood pumps
Номер патента: CA3234089A1. Автор: Qing Tan,Ahmad El Katerji,Maxim Daschewski,Mohammed Alwatban,Andre CHUEV. Владелец: Abiomed Inc. Дата публикации: 2023-04-27.