Abstract: A connection piece for a medical ventilator assembly which comprises a main body with a first inflow end and a second inflow end, and an outflow end. The first inflow end and the outflow end define a channel with a longitudinal axis. The second inflow end comprises a one-way valve adapted to allow gas flow toward the channel. The connection piece further comprises a leak valve arranged downstream of the one-way valve. The second inflow end is shaped and/or oriented with respect to the channel such that a gas flow from the second inflow end enters the channel, at an entry point, at an angle of less than 90° with respect to a direction of the longitudinal axis at said entry point from the first inflow end to the outflow end.

Abstract: The invention relates to a device and a method for determination of a measure for the homogeneity of the lung based on electrical impedance tomography (EIT) data as well as to a computer program. The device (100) comprises a data input unit (112), receiving the EIT data obtained by means of an electrical impedance tomography apparatus (110), wherein the data input unit (112) is configured to receive and provide EIT data from at least one region of at least one lung (2) of a living being over an observation period (?T). The device (100) also comprises a calculation and control unit (114) connected to the data input unit (112). The calculation and control unit (114) is configured to determine impedance values over the observation period (?T) for each pixel (1) of the at least one region of at least one lung (2), to determine an impedance amplitude value (?Z) and an end-expiratory impedance values (EELI) for each pixel (1) of at least one lung (2).

Abstract: A system for EIT imaging comprises an electrode array for positioning on a patient and measuring an impedance distribution, a data entry unit and a calculation unit. The electrode array contains a visual aid coupled to the electrode array for visually indicating the position of at least one electrode, the data entry module accepts an entry of data describing the position of the visual aid, and the calculation unit calculates the position of the individual electrodes relative to the patient's body and provides correction for the image creation algorithm. A sensor device for EIT imaging may comprise the electrode array, which is connectable to an EIT imaging system comprising a data entry unit and a calculation unit. An EIT imaging method may employ the system or sensor device.

Abstract: A sensor (1) for detection of gas, in particular for detection of CO2. The sensor (1) has a contact face (2) which is directed towards a measuring site. The sensor (1) includes at least one radiation source (3), a measurement volume (4) for receiving the gas to be measured, and at least a first detector (5) for detection of radiation transmitted from the source (3) to the first detector (5) through the measurement volume (4). The sensor has a path (6) of the radiation between radiation source (3) and first detector (5). The radiation propagates along the path in a non-imaging way.

Abstract: A sensor (1) for detection of gas, in particular for detection of CO2. The sensor (1) has a contact face (2) which can be directed towards a measuring site. The sensor (1) includes at least one radiation source (3), a measurement volume (4) for receiving the gas to be measured, and at least a first detector (5) for detection of radiation transmitted from the source (3) to the first detector (5) through the measurement volume (4). The sensor has a path (6) of the radiation between radiation source (3) and first detector (5). The radiation propagates along the path in a non-imaging way.

Abstract: A device for applying a sensor to a measurement site on a patient's skin has a wall arrangement defining an applicator volume above the patient's skin. The wall arrangement has a patient's side and a sensor side. At least one gas-permeable membrane separates the applicator volume into a first volume directed to the measuring site at the patient's side of the wall arrangement and a second volume separated from the patient's skin and directed to the sensor side of the wall arrangement.

Abstract: The device for the transcutaneous determination of blood gases including a transcutaneous sensor for the measurement of at least one of the parameters of skin carbon dioxide partial pressure (PsCO2) and skin oxygen partial pressure (PsO2) includes at least one sensor for the measurement of the tissue blood flow (F) local with respect to the transcutaneous sensor, and includes a device for the calculation of at least one of the parameters of transcutaneous carbon dioxide partial pressure (tcpCO2) and transcutaneous oxygen partial pressure (tcpO2) from the measured skin carbon dioxide partial pressure (PsCO2) or the measured skin oxygen partial pressure (PsO2), with a factor dependent on the local tissue blood flow (F) being taken into account in the calculation of at least one of the parameters of transcutaneous carbon dioxide partial pressure (tcpCO2) and transcutaneous oxygen partial pressure (tcpO2).

Abstract: A device and method for preparing an electrochemical sensor may enable the sensor head thereof to be provided with an electrolyte and a membrane. The device may include a retaining means for the sensor in addition to means for depositing the electrolyte and means for depositing the membrane.

Abstract: A sensor for the measurement of physiological parameters in the blood, including at least one measuring apparatus and a digital sensor signal processor which is arranged in the sensor, and which is connected in a signal conducting manner to the measuring apparatus. The sensor may output a digital output signal, which may be transmitted to a signal evaluation device using a connection cable.