Abstract: Methods and apparatuses are provided for neutral drive feedback loop compensation of detected electrosurgical unit signals. An apparatus includes an electrosurgery unit (ESU) signal detection circuit, a compensation switch, and an ESU filter switch. Both switches activate based on an output of the ESU signal detection circuit. A neutral drive feedback loop circuit is configured to compensate for a phase change characteristic of an ESU filter circuit.
Abstract: A control device, controlling an alarm output, includes a data network interface, with a signaling interface for outputting a control signal indicating a request for an acoustic and/or optical alarm signal a memory unit and a processor. The data network interface is configured to receive a group message indicating a sender identity and a presence of an alarm state. The memory unit provides a first data set, which indicates a list with potential sender identities, as well as further a second data set, which indicates one or more alarm output time periods. The processor is configured to operate a timekeeping function, and to output the control signal via the signaling interface as a function of an agreement between the sender identity with one of potential sender identities, and as a function of a comparison of a current value of the timekeeping function with data of the second data set.
Type:
Grant
Filed:
December 16, 2016
Date of Patent:
February 18, 2020
Assignee:
Drägerwerk AG & Co. KGaA
Inventors:
Stefan Schlichting, Alexander Loose, Peter Haase
Abstract: A device for detecting electric potentials of the body of a patient has measuring electrode inputs (Y1, . . . , Yn) connected with and a plurality of outputs (A1, . . . , An) via amplifiers (Op1, . . . , Opn). A summing unit (13) is connected with the outputs and outputs a mean value of the signals (E1, . . . , En) output by the amplifiers. Common mode signals are removed from the signals (E1, . . . , En) by a subtracting unit (19) which subtracts the output of the summing unit, amplified by an amplification factor (1/?), from at least a portion of the output of the subtracting unit. The output of the subtracting unit is connected with the inputs of the amplifiers. The subtracting unit amplification factor (1/?) and an amplification (??) of the amplifiers for the output of the subtracting unit are adapted, such that the reciprocal value of the amplification factor (1/?) corresponds to the amplifiers amplification (??).
Abstract: A system includes a monitor mount and first detachably secured to the monitor mount by the second coupling, (ii) detachably secure the first monitor by the third coupling, and (iii) surround at least a portion of the first electronic visual display when the first monitor is secured to the second monitor.
Abstract: A medical device has a device component with an operating state controllable by predefining a predefined value for an operating parameter. A data network interface receives a data message from a central network computer. The data message indicates whether the central network computer is in a blocked state concerning potential user inputs into an input unit of the network computer. The medical device further has an input unit for the potential input of an input value and at least one control unit configured to predefine the predefined value as a function of the input value to the device component as well as to block the input unit for inputs of a user. The control unit is further configured to block the input unit for the input of the input value as a function of the indicated state of the central network computer.
Abstract: A electronic sensor signals monitoring unit (10), system and computer program, for sepsis monitoring, includes an interactive visualization status calculation monitor (M), a sensor data acquisition interface (11), acquiring time-critical status-relevant sensor signals from medical devices (G), a rule engine interface (12) to a memory or a data bank (DB) with stored rules for analyzing and processing status-relevant parameters and/or sensor signals, and a computer-assisted control unit (S), configured to dynamically control the interactive visualization on the monitor (M) and including an arithmetic unit (RW). The arithmetic unit (RW) is supplied with the acquired sensor signals via the sensor data acquisition interface (11) and is intended for the status calculation with the rules stored in the data bank (DB). The status calculation includes an overview display, a detail view and a logbook view. A display of the course of status-relevant sensor signals over time is visualized in the detail view.
Type:
Grant
Filed:
February 18, 2015
Date of Patent:
December 31, 2019
Assignee:
DRÄGERWERK AG & CO. KGAA
Inventors:
David Detzler, Desislava Nikolova, Petra Schiwiaka, Hannes Schulz, Carsten Wasner
Abstract: A device (1) for determining the concentration of a gas component is configured with a radiation source (30) for emitting (31) a light radiation or heat radiation in an infrared wavelength range. A detector array (40) has at least two detector elements (50, 60), configured to detect the radiation generated by the radiation source (30), in an angular arrangement (52, 62) and with filter elements (51, 61). At least one of the two detector elements (50, 60) is oriented in an angular arrangement (52, 62) in relation to a vertical axis (32), so that a range of overlap (65) is obtained due to the angular arrangements (52, 62). The range of overlap (65) causes attenuations in the propagation of light, which attenuations may be due, for example, to gas molecules or moisture (400), affect both detector elements (50, 60) and are thus compensated concerning the concentration determination.
Type:
Grant
Filed:
October 27, 2017
Date of Patent:
December 10, 2019
Assignee:
Drägerwerk AG & Co. KGaA
Inventors:
Peter Dreyer, Günter Steinert, Bernd-Michael Dicks, Ralph-Peter Jacobi
Abstract: A respiration system with a respirator (2) and with a breathing system (1), which is detachably coupled with the respirator. The coupling between the respirator and the breathing system takes place by at least two connector systems (3). The coupling between the respirator and the breathing system is designed such that the volume flow through the connector systems always takes place in only one direction. A pressure sensor (9; 9?) is preferably combined with at least one of the connector systems (3) such that a unidirectional volume flow, by which the direction of migration of bacteria through the connector system is influenced in the desired manner, becomes established within this connector system (3), as a result of which the connector system and the coupled sensor are kept free from bacteria, viruses and other contaminants.
Abstract: An extracorporeal blood gas exchange device has a bloodstream area for guiding a bloodstream, a gas-carrying area for guiding a gas flow, and a membrane, which forms a gas-liquid barrier between the bloodstream and the gas flow, and which further makes possible the transfer of carbon dioxide of the bloodstream into the gas flow. The device further has at least one measuring cuvette, which is separated from the bloodstream area at least partially by the membrane, so that carbon dioxide of the bloodstream can pass over into the measuring cuvette. The device has an optical measuring unit, which is configured to measure a carbon dioxide partial pressure present in the measuring cuvette.
Abstract: A method and a system control a drug dosing device (1) for administering a drug to a patient (19). The quantity (c0) of the drug administered from the drug dosing device (1) is determined or calculated. The concentration of the drug in the gas exhaled by the patient (19) is measured as a first patient value (c1M). A simulation calculation is carried out, in which a second patient value (cp) is calculated from the administered quantity of the drug (I), taking into account a parameter (k10). A simulated first patient value (c1?) is calculated in the simulation calculation, taking into account the parameter (k10). A comparison of the simulated first patient value (c1?) to the measured first patient value (c1M) is carried out. The parameter (k10) is adapted on the basis of the comparison. The calculated second patient value (cp) is used to generate a control signal (S).
Type:
Grant
Filed:
October 27, 2015
Date of Patent:
October 1, 2019
Assignee:
Drägerwerk AG & Co. KGaA
Inventors:
Andreas Hengstenberg, Stefan Zimmermann, Dammon Ziaian
Abstract: A breathing mask has a mask body surrounding a cavity that is open towards one side and is intended for coming into contact with a human face around the mouth and/or nose. A valve arrangement is provided in the mask body with an inspiration valve, for controlling the flow of gas from a port for a breathing gas feed device for providing a breathing gas into the cavity, and an exhalation valve for controlling the flow of gas from the cavity into the surrounding atmosphere. An emergency breathing valve, controlling gas flow from the atmosphere surrounding the breathing mask into the cavity, has a pressure threshold, to allow gas flow, that is lower than an inhalation valve pressure threshold. The pressure thresholds at which the respective inhalation valve and the emergency breathing valve open are coordinated by the closing element being designed as a separate component of the valve arrangement.
Type:
Grant
Filed:
March 8, 2014
Date of Patent:
September 24, 2019
Assignee:
Drägerwerk AG & Co. KGaA
Inventors:
Oliver Wallnewitz, Helena Kaszás, Krisztina Soltész
Abstract: An exhalation valve, an inhalation valve, a ventilator and a method for controlling ventilation are provided. An exhalation valve (10) or inhalation valve (10) for a medical ventilator (30) for controlling a flow of a fluid, especially a breathing gas, has an inlet (12) and an outlet (14) for the fluid. Between the inlet (12) and the outlet (14), a valve seat crater (16) and a diaphragm (18) are provided. The diaphragm (18) is movable relative to the valve seat crater (16) for influencing the flow through the valve seat crater (16). The valve seat crater (16) and the diaphragm (18) are arranged such that the valve seat crater (16) can partially be sealed by means of the diaphragm (18), with the diaphragm (18) and the valve seat crater (16) not closing completely on initial contact of the diaphragm (18) and the valve seat crater (16).
Abstract: A ventilator control signaling method includes recording an electromyogram signal of values following one another in time and transforming the electromyogram signal into an evaluation signal by applying an evaluation function. An evaluation signal value is assigned to a signal value of the electromyogram signal in the transformation. The evaluation function is determined by a main parameter set that defines which signal value of the evaluation signal is assigned to a particular signal value of the electromyogram signal when the evaluation function is applied in the transformation. A signal value height of the evaluation signal indicates whether the electromyogram signal corresponds to a first state or a second state. A control signal is generated from signal values and is set to switch a ventilator to an inhalation or an exhalation operating mode depending on the state of the evaluation signal. A ventilator is configured to perform the method.
Abstract: A method for monitoring a patient (22a) within a medical monitoring area (100) by means of a monitoring system (200) with a depth camera device (210). The method includes the following steps: generating a point cloud (30) of the monitoring area (100) with the monitoring system (200); analyzing the point cloud (30) for detecting predefined objects (20), especially persons (22); determining a location of at least one detected object (20) in the monitoring area (100); and comparing the determined location of the at least one detected object (20) with at least one predefined value (40) for the location of this detected object (20).
Abstract: Displaying a status of a medical line includes receiving data characterizing a time at which use of the medical line commenced and a target usable time of the medical line. The medical line corresponds to a fluid transport channel for a patient. Using (i) the received data and (ii) a measure of elapsed time since use of the medical line commenced, the status of the medical line is determined that characterizes (a) a time until the target usable time of the medical line will be reached or (b) whether the target usable time of the medical line has been reached. A graphical user interface (GUI) element representing the status of the medical line as a function of time is displayed in a graphical user interface (GUI) display space. Related apparatus, systems, techniques and articles are also described.
Type:
Grant
Filed:
August 3, 2015
Date of Patent:
August 20, 2019
Assignee:
DRÄGERWERK AG & CO. KGAA
Inventors:
Amy M. Manetta, Jacqueline Marie Mulcahy, Thomas F. Meinert
Abstract: A measuring device (10) has at least one sensor (16, 18), which can be applied to the skin surface (12) of a patient for detecting a measured value with the sensor (16, 18). The device (10) has two contact surfaces (20, 22) on an underside (24), which is intended for being in contact with the skin surface (12) of the patient. A current detecting (32, 34), detects a measuring current (30) resulting from a particular effective electric resistance between the contact surfaces (20, 22). A method for operating such a measuring device (10) and a system with such a measuring device (10) are also provided.