Drãgerwerk Ag & Co, Kgaa

Stefan Mersmann

Wilfried Buschke

Christoph Hörmann

Steffen Leonhardt

Eckhard Teschner

Tim Baier-Löwenstein

Robert Pikkemaat

Yvo Gärber

Andreas Neumann

Thomas Katschewitz

Philippe Jolliet

A ventilator, for the automated ventilation of a patient, includes a breathing gas delivery unit, at least one volume flow sensor for detecting a volume flow of the breathing gas, at least one breathing gas sensor for detecting a carbon dioxide concentration in the breathing gas, at least one pressure sensor for detecting a pressure of the breathing gas, as well as at least one computer. The computer is configured to actuate the breathing gas delivery unit as a function of the detected pressure and of a preset desired pressure value. The computer is further configured to perform an adaptation of the desired pressure value and an adaptation of a ventilation rate as a function of the detected volume flow and as a function of the detected carbon dioxide concentration.

Ventilator and process for the automated ventilation of a patient

An anesthesia ventilator, for the automated ventilation of a patient, includes an expiratory port and an inspiratory port for connecting a ventilation tube facing the patient for a breathing gas, a breathing gas delivery unit, at least one breathing gas sensor for detecting an anesthetic gas concentration, at least one pressure sensor for detecting a pressure of the breathing gas, as well as at least one computer. The computer is configured to actuate the breathing gas delivery unit as a function of the detected pressure of a preset desired pressure value. The computer is further configured to perform an adaptation of the desired pressure value as a function of the detected anesthetic gas concentration.

Anesthesia ventilator for the automated ventilation of a patient

An anesthesia ventilator, for the automated ventilation of a patient, includes an expiratory port and an inspiratory port for connecting a patient ventilation tube for a breathing gas, a breathing gas delivery unit, a breathing gas volume flow sensor, a breathing gas sensor for detecting a carbon dioxide concentration, a pressure sensor for detecting a pressure of the breathing gas, and a computer. The computer is configured to actuate the breathing gas delivery unit in a first mode of operation as a function of a preset ventilation rate, of the detected pressure and of a preset desired pressure value. The computer is configured to detect the presence of a desired operating state concerning the automated ventilation on the basis of the detected volume flow and of the detected carbon dioxide concentration and to make possible a transition to a second mode of operation in case of detection.

Anesthesia ventilator for automatic ventilation as well as for the detection of an operating state concerning the automatic ventilation

A device for determining the regional distribution of a parameter for lung perfusion includes an electrical impedance tomography unit with electrodes (E, . . . EN), which can be placed on the thorax, that are connected to a control and analysis unit () and an administering device () for the intravenous administration of a conductivity contrast medium. The control and analysis unit () is configured to display changes in impedance distribution occurring as a consequence of the administration of conductivity contrast medium as a parameter for lung perfusion in the section plane as a function of time. The administering device () has a controllable dispensing device. The control and analysis unit and the dispensing device are connected with one another via a data link (). A start time and an end time and a quantity of an administered bolus of the conductivity contrast medium are available to the control and analysis unit ().

Device for determining the regional distribution of a parameter for lung perfusion

Respiration system for non-invasive positive-pressure respiration, with a pressure source providing respiratory gas, with a control and evaluation unit connected to sensors detecting a leakage volume, spontaneous respiration frequency, tidal volume and the inspiration time. The control and evaluation unit I) checks the leakage volume and reduces the inspiratory pressure assistance proceeding to ii) or triggers an alarm and returns to I), ii) checks the frequency and triggers an alarm and returns to I) or reduces or increases the inspiratory pressure and returns to I) or proceeds to step iii), iii) checks the volume and reduces or increases the inspiratory pressure and returns to I) or leaves the pressure assistance unchanged proceeding to step iv), iv) adjusts the time period of the pressure assistance, depending on the inspiration time, the time period being left unchanged if the inspiration time lies in the predefined inspiration time interval, and returns to I).

Respiration system

A device and a method () for the processing of data (), which were obtained by an imaging method, make possible an improvement in a location-specific visualization of the perfusion of the lung. With a reference to a comparison variable, a location-specific variable (), characteristic of a period of observation, regarding the perfusion of the lung and heart region, is determined and provided as an output signal.

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Lübeck, Germany

Stefan Mersmann