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1.发明公开公开(公告)号：US20230211108A1
公开(公告)日：2023-07-06
申请号：US18150263
申请日：2023-01-05
CPC分类号： A61M16/0816 , A61M16/202 , A61M2016/0033
摘要： A connection device and process connect a patient-side coupling unit to a source/sink of a gas including oxygen. The connection device includes a valve device with a first valve (40.1) and with a second valve (40.2). A source-side fluid guide unit establishes a fluid connection between the source or the sink and the valve device. A patient-side fluid guide unit establishes a fluid connection between the patient-side coupling unit and the valve device. The valves are connected in parallel and are arranged between the two fluid guide units. A gas flows from the source through the first and/or second valve to the patient-side coupling unit or through the first and/or second valves to the sink. A control pressure is set at each valve. As a result, the time course of the volume flow downstream of the valve device follows a predefined time course.
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2.发明公开公开(公告)号：US20240342427A1
公开(公告)日：2024-10-17
申请号：US18632568
申请日：2024-04-11
CPC分类号： A61M16/202 , A61M16/0003 , A61M2205/3327 , A61M2205/42
摘要： A ventilation arrangement and a ventilation process provide ventilation for a patient. A first segment of a fluid guiding unit connects a fluid delivery unit to a valve (10). A second segment connects the valve (10) to a coupling unit on the patient side. A position of a valve body (19) of the valve (10) relative to a valve body seat (18) depends on an inlet pressure (P2) and on a control pressure (P1) and influences the volume flow (Vol′) through the second segment. An actuator (15) changes the control pressure (P1). A control signal (Sigcon) for the actuator (15) is generated with the objective of ensuring that the pressure or volume flow (Vol′) in the second segment assumes a predetermined value. A compensation signal (Sigcomp) for the actuator (15) is generated with the objective of preventing the valve body (19) from vibrating relative to the valve body seat (18).
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