Abstract: A method is provided for measuring the run time of an ultrasonic pulse in the determination of the flow velocity of a gas in a breathing gas volume flow sensor (1). The breathing gas volume flow sensor (1) has a flow duct (3) with a measuring section, wherein the measuring section is arranged in parallel to or at an angle (?) smaller than 90° to the flow duct (3). The measuring section has an ultrasound transmitter (5) and an ultrasound receiver (7). The method determines the run time of the ultrasonic pulse from the receiving signal spectrum without the damping of the ultrasonic pulse having an effect on the run time measurement by an ultrasonic pulse being triggered by a transmitting pulse at the ultrasound transmitter (5). The ultrasound receiver (7) sends a receiving signal and the receiving signal is recorded as a first receiving signal data record as a function of time after the transmitting pulse.
Abstract: An electro-impedance tomography (EIT) system (2), with a computing unit (4) and a respirator (1) is described for gentle mechanical lung ventilation especially in case of atelectases. The presence, the extent and/or the spatial distribution of atelectases is detected by the EIT system (2) and sent to the respirator (1) so that the respiration pressure is increased step by step by the respirator (1) until the current image of the lung status corresponds to a first status image of healthy lungs or comes close to it with minimal deviations. The respiration pressure is subsequently reduced again step by step by the respirator (1) until the computing unit (4) detects a reduction of the ventilated lung areas and the respiration pressure is subsequently increased again by means of the respirator (1) to the last value at which no change occurred in the ventilated lung areas.
Abstract: A system is provided for controlling and monitoring therapy modules of a medical workstation. The system includes a first control and display unit, at least another control and display unit and at least one therapy module, which is either a ventilation module or an infusion module. The control and display units and the therapy module or therapy modules are connected to one another via bidirectional communications connections. The control and display units have a settable first display area for alarm and status reports of the therapy module or therapy modules and a second area for the display and modification of therapy settings of the therapy module or therapy modules.
Type:
Grant
Filed:
October 4, 2007
Date of Patent:
February 8, 2011
Assignee:
Dräger Medical GmbH
Inventors:
Hermann Hopermann, Volker Schierschke, Thomas Krüger
Abstract: A method, system and device are provided for the determination of leaks in a respirator. An inspiraton pressure pinsp is recorded during an inspiration time Tinsp with a measuring device. The inspiration pressure pinsp is varied during consecutive breaths I. Leaks are determined as to leak volumes VLi from the product of pinspi and Tinspi in accordance with the equation VLi=A×pinspiB×Tinspi while the parameters A and B are determined in an analyzing unit by a regression model with pinsp as the regressor.
Abstract: A monitoring system and process is provided for at least two medical apparatuses, which can send at least one alarm signal each. At least one alarm unit is connected to these apparatuses, wherein the alarm unit has at least one processing unit, a memory unit and an output unit. The processing unit assigns priorities to the alarm signals, and an assignment list of the distribution of the priorities of the individual alarms is stored in the memory unit.
Type:
Grant
Filed:
September 6, 2007
Date of Patent:
February 8, 2011
Assignee:
Dräger Medical GmbH
Inventors:
Uwe Becker, Jürgen Kelch, Hartmut Schmidt
Abstract: A diaphragm valve is provided, in which there is improved sealing of a closing cover (15) against the valve housing (3). The seal includes a cylindrical sealing washer (25), which is connected to the valve housing (3) in one piece and into which a cylindrical wall section (18) of the closing cover (15) can be inserted with press fit.
Abstract: A process is provided for monitoring a patient being anesthetized, as well as a process for determining a combined effect of different anesthetics used. Devices for carrying out the processes are also provided.
Type:
Grant
Filed:
June 10, 2008
Date of Patent:
February 1, 2011
Assignees:
Dräger Medical GmbH, Inselspital Bern, Direktion Lehre und Forschung
Inventors:
Franz Frank, Maral Haar, Jürgen Manigel, Kai Kück, Susanne Stahlkopf, Marcel Voigt, Thomas Bouillon, Martin Luginbühl, Peter Schumacher
Abstract: An anesthesia apparatus with a breathing circuit (1) has improved initiation of anesthesia for the patient. The gas mixture dispensed into the breathing circuit (1) is circulated in a first operating state without release to a patient until a preset anesthetic concentration is set in the breathing circuit (1). The respiration of the patient connected to the anesthesia apparatus takes place in a subsequent second operating state with the gas mixture set in the first operating state.
Abstract: An adapter is provided for adapting an absorber container (4) to a breathing system. A seal (405) is employed that has sealing surfaces (55, 56, 57), which extend in a jacket area (34) of a valve crater (15), which limits an outer gas channel. The seal (405) is provided between the absorber container (4) and the adapter.