Drager Medical Gmbh

Dragerwerk Aktiengesellschaft

Dr&auml;ger Medical Ag & Co. Kgaa

Dr&auml;ger Medizintechnik Gmbh

Bernhard Ludwig

Ralf Lorenzen

Götz Kullik

Tilman Von Blumenthal

Jürgen Manigel

Ralf-Ernst Loser

Dieter Sahmkow

Judith Löser

Frank Oelgarth

Tilmann Von Blumenthal

Tillmann Von Blumenthal

Dirk Fiebelkorn

Hendrik Hantzko

A modular respiration system is provided for the mechanical respiration of a patient. The respirator system has a modular respiration module () for connection to the patient (), wherein the respiration module () contains a respiration system () with a respiration drive (), an electric energy unit () and a memory with a control unit (ES II). One or more stationary parts () are provided for detachably accommodating the complementary modular respiration module (). At least one detachable connection interface () is provided for data, electric energy and breathing gas exchange between the respiration module () and the stationary part or parts () accommodating the respiration module ().

Modular respiration system for the mechanical respiration of a patient

A gas-mixing device for respirators can be used both in stationary operation and in mobile operation. The gas-mixing device has a storage tank (), into which compressed air and oxygen can be introduced by dispensing valves (). In addition, a blower (), which draws in gas from the environment (), is connected to the storage tank (). To dispense gas from the pressurized gas sources () by means of the dispensing valves (), a first operating pressure level is set in the storage tank (). When changing over to the blower operation, the operating pressure level is lowered to a pressure level adapted to the maximum respiration pressure.

Gas-mixing device for respirators

A valve arrangement is provided with a very short minimum valve adjustment time. This is especially suitable for use in respirators or anesthesia apparatuses for metering gases for respirated patients. It has a valve ( ) with a seat ( ) and with a valve closing part ( ) for adjusting the gas flow rate, an inflow line ( ) and a discharge line ( ) as well as a drive system ( ) for controlling the position of the valve closing part ( ) relative to the seat ( ). A gas flow rate measuring transducer ( ) and a control unit ( ) are provided for controlling the drive system ( ) by means of a control signal. A velocity measuring transducer ( ) for measuring the velocity of the valve closing means ( ) relative to the seat ( ) is present to provide an output signal used to calculate the control signal ( ) for the drive system ( ).

Valve arrangement for controlling the flow rate of a gas

A device with a gas sensor for measuring a breathing gas component in a breathing gas line is improved such that a pressure correction of the gas concentration measurement can be performed without appreciably affecting the respiration pressure. Provisions are made for branching off a first measuring gas line ( ) with a first electrochemical measuring cell ( ) from the breathing gas line ( ). A first throttling point ( ) is arranged in the course of the first measuring gas line ( ) between the first electrochemical measuring cell ( ) and the breathing gas line ( ). A first pressure sensor ( ), for the pressure correction, is located downstream of the first electrochemical measuring cell ( ).

Device for measuring a breathing gas component in a breathing gas line

A valve for a respirator with a closing member, which is located at a valve seat 6 and is actuated by an electric drive 12, is improved in terms of its dynamic properties. A detector for detecting a first electric signal present at the moving drive a simulator for simulating a second electric signal generated at the nonmoving drive are provided. A comparator forms a differential signal between the first electric signal and the second electric signal. A closed action (feed back loop) circuit sets the position of the closing element in relation to the valve seat according to a preset valve p.sub.s. The differential signal is applied to the control circuit are provided.

Valve for a respirator

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Lübeck, Germany

Bernhard Ludwig