초록 ▼

A respirator with a tidal volume-measuring device (6) between a respiration bag (8) and a patient adapter (2) provides accurate metering of the tidal volume. The device includes a first pressure-measuring device (4) and a breathing gas interruptor (5) in series sequence between the patient adapter (

A respirator with a tidal volume-measuring device (6) between a respiration bag (8) and a patient adapter (2) provides accurate metering of the tidal volume. The device includes a first pressure-measuring device (4) and a breathing gas interruptor (5) in series sequence between the patient adapter (2) and the tidal volume-measuring device (6). A second pressure-measuring device (7) is provided between the tidal volume-measuring device (6) and the respiration bag (8). A control unit (20) is connected with the tidal volume-measuring device (6) and the pressure-measuring devices (4, 7) and sends control signals in such a way that when a predetermined tidal volume is reached, the breathing gas interrupter (5) is switched to the closed position, and that the closed position is eliminated when the pressure p2 measured with the second pressure-measuring means (7) has dropped below the pressure p1 determined with the first pressure-measuring means (4).

대표청구항 ▼

1. A respirator comprising:a respiration bag;a patient adapter;a tidal volume-measuring device for measuring a tidal volume V(t) between said respiration bag and said patient adapter;a first pressure-measuring means for measuring a pressure value p1 between the patient adapter and the tidal volume-m

1. A respirator comprising:a respiration bag;a patient adapter;a tidal volume-measuring device for measuring a tidal volume V(t) between said respiration bag and said patient adapter;a first pressure-measuring means for measuring a pressure value p1 between the patient adapter and the tidal volume-measuring device;a breathing gas interrupter in series sequence with said first pressure-measuring means between said patient adapter and said tidal volume-measuring device;a second pressure-measuring means for measuring a pressure value p2 between said tidal volume-measuring device and said respiration bag; anda control unit connected with the tidal volume-measuring device, said first pressure measuring means and said pressure-measuring means, said control unit switching said breathing gas interrupter to a closed position when a predetermined tidal volume, V(t)=Vset, is reached, and a switching said breathing gas interrupter out of the closed position when the difference between p2 and p1 drops below zero.2. A respirator in accordance with claim 1, wherein said pressure-measuring means, said breathing gas interruptor and said tidal volume-measuring device are accommodated in a modular manner in a common housing, and plug connections are formed between said housing and said respiration bag and said housing and said patient adapter.3. A process for metering a predetermined tidal volume with a respiration bag connected with a patient adapter via a tidal volume-measuring device, the process comprising the steps of:interrupting the breathing gas supply from the respiration bag with a breathing gas interrupter, which is arranged between the tidal volume-measuring device and the patient adapter, when a measured tidal volume V(t) has reached a predetermined tidal volume Vset,determining a first measured pressure value p1 at a first measuring point between the breathing gas interruptor and the patient adapter and determining a second measured pressure value p2 at a second measuring point between the tidal volume-measuring device and the respiration bag; andswitching of the breathing gas interrupter to a closed position when the difference p2 minus p1 is less than zero.