초록 ▼

An improved respirator with a breathing circuit (100) and a corresponding process for operating the respirator are provided. Defined breathing gas volumes can be delivered to the patient and the current operating state can be reliably monitored despite a strong breathing gas volume flow being delive

An improved respirator with a breathing circuit (100) and a corresponding process for operating the respirator are provided. Defined breathing gas volumes can be delivered to the patient and the current operating state can be reliably monitored despite a strong breathing gas volume flow being delivered in the breathing circuit (100). A gas delivery element (1) designed as a rotary compressor is connected on the inlet side to a reversible breathing gas reservoir (7) and on the outlet side to a patient connection piece (9) for inspiration via a first gas volume flow sensor (2) with a first nonreturn valve (11). A second gas volume flow sensor (5) is located in the connection line between the patient connection piece (9) and the patient being inspirated. The patient connection piece (9) is connected for expiration to a second nonreturn valve (10) via a third gas volume flow sensor (3) and to the reversible breathing gas reservoir (7) via a controllable shut-off valve (4). At least one measuring and control device (14, 15) is connected to the gas volume flow sensors (2, 5, 3), it receives their measured signals and sends control signals to the gas delivery element (1) and to the controllable shut-off valve (4).

대표청구항 ▼

1. A respirator comprising:a breathing circuit with an inlet branch and an outlet branch; a reversible breathing gas reservoir; a first gas volume flow sensor; a patient connection piece; a first nonreturn valve; a gas delivery element including a rotary compressor, said gas delivery element being c

1. A respirator comprising:a breathing circuit with an inlet branch and an outlet branch; a reversible breathing gas reservoir; a first gas volume flow sensor; a patient connection piece; a first nonreturn valve; a gas delivery element including a rotary compressor, said gas delivery element being connected on an inlet branch to said reversible breathing gas reservoir and being connected on an outlet branch to said patient connection piece for inspiration via said first gas volume flow sensor with said first nonreturn valve; a second nonreturn valve; a controllable shut-off valve connected to said outlet branch providing an open state allowing flow through said outlet branch and a shut state stopping flow through said outlet branch; a connection line between said patient connection piece and a patient being respirated; a second gas volume flow sensor located in said connection line between said patient connection piece and the patient being respirated; a third gas volume flow sensor; said patient connection piece being connected for expiration to said second nonreturn valve via said third gas volume flow sensor and to said reversible breathing gas reservoir via said controllable shut-off valve; and a measuring and control unit connected to said gas volume flow sensors receiving measured signals and sending control signals to said gas delivery element to control a speed of said gas delivery element and to said controllable shut-off valve to control the open and shut state of said controllable shut-off valve.