摘要:
There is provided a wireless audio transmission system, in particular a wireless microphone system, for wireless audio transmission. The system has at least one wireless microphone unit for detecting audio signals and for wirelessly transmitting the detected audio signals, and a central unit. The central unit has a wireless receiving unit for receiving the wirelessly transmitted audio signals from the wireless microphone units, a pilot tone transmitting unit for transmitting a first pilot tone on a pilot channel, and a pilot tone receiving unit for receiving and processing a second pilot tone signal. The pilot tone signal has information in respect of the wireless transmission between the microphone units and the central unit.
摘要:
There is provided a wireless audio transmission system, in particular a wireless microphone system, for wireless audio transmission. The system has at least one wireless microphone unit for detecting audio signals and for wirelessly transmitting the detected audio signals, and a central unit. The central unit has a wireless receiving unit for receiving the wirelessly transmitted audio signals from The wireless microphone units, a pilot tone transmitting unit for transmitting a first pilot tone on a pilot channel, and a pilot tone receiving unit for receiving and processing a second pilot tone signal. The pilot tone signal has information in respect of the wireless transmission between the microphone units and the central unit.
摘要:
A method for storing data in which the data to be stored is divided into a plurality of source blocks, each source block subjected to steps including defining a block key for the source block based on a random function, encrypting the source block by utilizing the defined block key, selecting at least one first storage location and one second storage location from a plurality of different available storage locations, storing control data that includes information on the defined block key at the first selected storage location, and storing encrypted data that includes information on the encrypted source block at the second selected storage location.
摘要:
The present invention relates to an image carrier, for example, for use in electro-photography, containing at least one elastomer with cavities. The image carrier can be used, inter alia, in electrography, electrophotography (as a photoconductor) or magnetography and in color printing processes.
摘要:
The present invention relates to a device and a method for monitoring an access to a patient, in particular a vascular access in extracorporeal blood treatment, in which a patient's blood is withdrawn from the patient via an arterial conduit and is returned to the patient via a venous conduit. In the device according to the present invention and in the method according to the present invention, an alternating voltage signal, relative to a common ground potential, is coupled in and out of the arterial and venous conduits, and the blood flowing through the arterial and venous conduits is at ground potential. In this way, disturbances, which can be attributed particularly to movements of the conduits, are reduced.
摘要:
A disposable receptacle unit for solutions is described, in particular for solutions used in calibrating sensors for measurement of physiologically relevant parameters. The receptacle is a disposable blister pack for a single use that includes several chambers to hold solutions. Each chamber is connected to a sample channel by an outlet channel sealed by a sealing element. The sensors for measurement of physiological parameters are preferably part of the receptacle unit. To calibrate the sensors, the calibration solutions in the chambers are metered into the sample channel after opening the corresponding sealing elements. After the treatment, the receptacle unit is discarded together with the sensors.
摘要:
The present invention relates to a device for creating a vascular access for extracorporeal blood treatment including an electrically conductive puncture needle with a proximal endpiece, a distal endpiece, and a base body made of electrically non-conductive material into which the distal endpiece is inserted. In a properly arranged vascular access, the base body, including an electrically conductive contact element, lies on the skin of the patient, when the puncture needle is located within the vessel of the patient. A disconnection or dislocation is detected by the impedance between the electrically conductive puncture needle and the electrically conductive contact element being measured and compared to a limit value. If the impedance measured is within predetermined limits, this indicates a properly arranged vascular access. A disconnection or dislocation of the puncture needle leads to a strong variation in the impedance.
摘要:
The present invention relates to a device for creating a vascular access for extracorporeal blood treatment using an extracorporeal blood treatment device, wherein the device for creating the vascular access has an electrically conductive puncture needle with a proximal endpiece and distal endpiece, and a base body that is made of electrically non-conductive material and into which the distal endpiece of the puncture needle is inserted. In the case of a properly arranged vascular access, the base body, which includes an electrically conductive contact element, lies on the skin of the patient, when the puncture needle is located within the vessel of the patient. A disconnection or dislocation is detected by the impedance between the electrically conductive puncture needle and the electrically conductive contact element being measured and compared to a limit value. If the impedance measured is within predetermined limits, this indicates a properly arranged vascular access. A disconnection or dislocation of the puncture needle leads to a strong variation in the impedance, which indicates that the vascular access is not properly arranged.
摘要:
The inventive IR camera is used to identify areas of a surface in which there is an increased risk of condensation, by imaging the surface determining, from humidity and temperature values, a condensation temperature at which there is a risk of condensation on the surface, comparing the temperature in at least one image point registered by the camera to the condensation temperature coloring any image points having a temperature lower than the condensation temperature in a particular color, or grey tone, selected to indicate an increased risk of condensation.
摘要:
The present invention relates to a device and a method for monitoring an access to a patient, in particular a vascular access in extracorporeal blood treatment, in which a patient's blood is withdrawn from the patient via an arterial conduit and is returned to the patient via a venous conduit. In the device according to the present invention and in the method according to the present invention, an alternating voltage signal, relative to a common ground potential, is coupled in and out of the arterial and venous conduits, and the blood flowing through the arterial and venous conduits is at ground potential. In this way, disturbances, which can be attributed particularly to movements of the conduits, are reduced.