Abstract:
The invention relates to a radiation detector (100′) and a method for detecting radiation, particularly for detecting X-rays (X) in a CT imaging apparatus (1000′). According to a preferred embodiment, the radiation detector (100′) comprises a conversion element (110) for converting incident radiation (X) into electrical signals which are read out and processed by a readout circuit (120). A heating device comprising the heat source (135′) of a Peltier element is provided with which the conversion element (110) can controllably be heated in order to reduce negative effects, e.g. of polarization, on image accuracy, wherein the heat sink (137′) of the Peltier element is oriented towards the readout circuit.
Abstract:
The present invention is directed towards a moisture resistant radiation detector core assembly which was constructed by first assembling the photon-electron conversion layer, integrated circuit and the connection elements between and then encapsulating the whole assembly. This provides improved moisture barrier properties, since the encapsulation also covers the connection elements and does not have to be opened to apply the electrical connections, as is done for known radiation detector core assemblies.
Abstract:
The invention provides an ultrasound patch (710) comprising a first array group (720) comprising a primary transducer array (730) having a first orientation and a second array group (740) comprising at least two secondary transducer arrays (750) each having an orientation different from the first orientation. The second array group is arranged such that the at least two secondary transducer arrays are located at either side of the primary transducer array. The first array group or the second array group may be used to capture preliminary ultrasound data for positioning the ultrasound patch. The primary transducer array and the at least two secondary transducer arrays may comprise CMUTs, and the ultrasound patch may comprise a flip chip connection. Also disclosed are a system and a method for positioning the ultrasound patch on a surface of a subject.
Abstract:
The present invention relates to an ECG electrode connector (1) and an ECG cable. To eliminate a trunk cable of a conventional ECG cable arrangement, the ECG electrode connector (1) is configured for mechanically and electrically connecting an ECG electrode with a lead wire. It comprises a connection arrangement (10) for mechanically connecting the ECG electrode connector (1) with an ECG electrode (100), a lead wire terminal (14) for connection with a signal line (301) of a lead wire (300), a shield terminal (15) for connection with a shield (302) of the lead wire (300), an electrode contact (17) for contacting an electrical contact (101) of the ECG electrode (100), a voltage clamping element (13) coupled between the lead wire terminal (14) and the shield terminal (15), and a resistor (16) coupled between the lead wire terminal (14) and the electrode contact (17).
Abstract:
The present invention relates to a direct conversion radiation detector for wherein the direct conversion material comprises a garnet with a composition of Z3(AlxGay)O12:Ce, wherein Z is Lu, Gd, Y, Tb or combinations thereof and wherein y is equal to or greater than x; and preferably Z comprises Gd. Suitable garnets directly convert radiation, such as x-rays or gamma-rays, into electronic signals. Preferably photoluminescence of the garnet is low or absent. The detector is particularly suitable for use in x-ray imaging devices, such as computed tomography. In some embodiments photoluminescence of garnets might be used to construct a hybrid direct-indirect conversion detector, which may be particularly suitable for use with Time-of-Flight PET.
Abstract:
A system and method for PPG analysis processes images to determine PPG signals from different image regions of the images and determine relative delays between the PPG signals for the different image regions. The time alignment between the PPG signals is improved so that a more accurate global PPG signal is obtained for the overall region of interest. In this way, PPG signals are realigned or partially realigned to provide an overall PPG signal with improved signal to noise ratio.
Abstract:
The invention provides for a method and an apparatus (300) for positioning an ultrasound patch on a surface of a subject. The apparatus includes a first fixing unit (210) and a second fixing unit (310) adapted to be fixed to a surface of the subject at a first location and second location, respectively, with a space of exposed surface of the subject between them. The apparatus further comprises a holding unit (260) for positioning on the exposed surface of the subject within the space between the fixing units, the holding unit being adapted to receive the ultrasound patch. The holding unit is adapted to be coupled with the first and second fixing units at the surface of the subject and, when the holding unit is coupled to the first fixing unit and the second fixing unit, the position of the holding unit is adjustable relative to the first fixing unit and the second fixing unit.
Abstract:
The present invention relates to a medical coupling unit for electrical signal transmission between the medical coupling unit (1, 1a, 1b) and a medical sensor (2, 2a) coupled to the medical coupling unit. The medical coupling unit comprises a coupling-side connector (10) comprising a plurality of first electrical contacts (11) in or on a first surface (12) and a plurality of second electrical contacts (13) in or on a second surface (14) opposite the first surface, and a connector interface (15) for analyzing electrical signals available at one or more of the plurality of first and second electrical contacts (11, 13) to detect one or more of presence of a medical sensor coupled to the medical coupling unit, the type of medical sensor coupled to the medical coupling unit, and the orientation of a sensor-side connector of a medical sensor coupled to the medical coupling unit. The present invention relates further to a sensor-side connector (20).
Abstract:
The invention relates to a radiation detector (100) and to a method for manufacturing such a detector. In a preferred embodiment, the radiation detector (100) comprises an array of photosensitive pillars (110) that are embedded in a conversion material (120). The photosensitive pillars may particularly be diodes connected at their ends to external circuits (130, 140). The conversion material (120) may particularly comprise a powder of scintillator particles (121) embedded in a matrix of binder.
Abstract:
A system (100) includes a photon counting detector array (116) including a direct conversion material (118) and a plurality of detector pixels (120) affixed thereto, and a split signal corrector (126) that corrects the output of the plurality of detector pixels for split signals. A method includes receiving an output signal of each of a plurality of detector pixels affixed to a direction conversion material of photon counting detector array, and correcting the output of the plurality of detector pixels for split signals. A computer readable storage medium encoded with computer readable instructions, which, when executed by a processer, cause the processor to: receive an output signal of each of a plurality of detector pixels affixed to a direction conversion material of photon counting detector array, and correct the output of the plurality of detector pixels for split signals