Abstract:
Device for performing laser angioplasty, in which laser light is beamed via a laser radiation device in the area of a catheter tip, with simultaneous OCT monitoring, for the ablation of plaque. The feed lines for the laser radiation device and the rotating OCT signal lines are disposed in a common catheter sheath, said feed lines leading to an OCT sensor disposed within a ring-shaped window running around the circumference of the catheter sheath, said OCT sensor being disposed at a distance from the laser radiation device.
Abstract:
For training adjustment in sports, particularly running sports, an apparatus and appertaining method are provided with which a simple, non-invasive and automatic determination of the lactate balance point is possible. The apparatus comprises a motorized treadmill for which a running speed can be predetermined by a control unit, whereby the control unit is connected to a pulse measurement device to supply a measurement value of the heart rate of a test person, and whereby the control unit comprises a module to determine the lactate balance point, this module being fashioned to successively increase the running speed in the training course, to register the time curve of the heart rate, and to determine the lactate balance point of the test person via evaluation of the dependency of the heart rate on the running speed.
Abstract:
A method is described for positioning a mobile X-ray detector unit (25, 26) of an X-ray system (1). The X-ray system (1) deployed has X-ray radiation units (5, 6, 7) and at least one mobile X-ray detector unit (25, 26). The X-ray radiation units (5, 6, 7) thereby each have an active and a passive operating status. The X-ray radiation units (5, 6, 7) are each assigned a detector holder (8, 9, 10, 11, 12) to hold a m obile X-ray detector unit (25, 26). To generate X-ray recordings, X-ray radiation emitted by an active X-ray radiation unit (5, 6, 7) is detected by means of a mobile X-ray detector unit (25, 26), which is located in a detector holder (8, 9, 10, 11, 12) of said X-ray radiation unit (5, 6, 7). A mobile X-ray detector unit (25, 26) is positioned as a function of the operating status of the X-ray radiation units (5, 6, 7) such that a mobile X-ray detector unit (25, 26) is located in each of the detector holders (8, 9, 10, 11, 12) assigned to the active X-ray radiation units (5, 6, 7). A location unit is used to determine the location of a mobile X-ray detector unit automatically.
Abstract:
A medical examination and/or treatment system has an X-ray image exposure system with a radiation source, a radiation receiver as well as a control and processing device that controls them, a catheter system with a catheter with at least one element in the catheter tip that generates a magnetic field and a device for generating an external magnetic field for guiding the movement of the catheter introduced into a patient by interaction with the magnetic field generated by the element at the catheter tip, as well as an ultrasound image exposure system having a device integrated in the catheter tip for generating and for receiving ultrasound and having a control and processing device that controls this device.
Abstract:
Patient monitoring apparatus for use in an environment which includes a plurality of sensors. The apparatus provides collection and display of patient data signals collected from a medical patient using the sensors, including periods when the patient is being transported. The apparatus comprises a portable monitor coupled to a plurality of distinct data acquisition modules, which are coupled to the sensors. The modules includes cartridges, which detachably mount to the portable monitor, and pods which are positioned independent of the monitor. The pods reduce the number of cables extending between the patient's bed and the portable monitor by combining signals from many sensors into a single output signal. The modules collect patient data in analog form from the sensors and provide digital data signals to the monitor. The portable monitor includes: a display device for displaying the patient data, and storage for the patient data. The portable monitor may be coupled to a docking station. The portable monitor receives power from the docking station, and transfers data to a remote display device by way of the docking station. Patient data is displayed on either one of the portable monitor or the remote display device. A battery pack and a hardcopy output device attach to the case of the portable monitor.
Abstract:
An imaging apparatus having a ring-shaped gantry is provided. The gantry has a rotor arrangement rotating therein and a radiation source as well as at least one radiation detector. The gantry has at least one gantry segment which can be detached from the ring shape to allow the gantry to be opened laterally. The gantry is arranged on a supporting structure so as to be movable in space. The supporting structure is a ceiling-mounted stand having at least two degrees of freedom of movement. The gantry has at least two radiation sources disposed offset by an angle on the rotor arrangement and associated with each of which is at least one radiation detector.
Abstract:
For particularly effective stem cell therapy a nanoparticle is provided. The nanoparticle has a first element consisting of a magnetic material, a support or envelope element consisting of a biodegradable material, a first substance containing an x-ray contrast agent, and a second substance containing stem cells. The stem cells are embodied such that they can be used for angiogenesis or for myogenesis.
Abstract:
A miniature X-ray tube for intravascular or intracorporeal radiation treatment in living beings is proposed. The X-ray tube comprises a cylindrical housing section with a longitudinal axis. The miniature X-ray tube also comprises a cylindrical or cylindrical-tube-shaped first field emission cathode arranged concentrically about the longitudinal axis in the housing with a plurality of carbon nanotubes which emit electrons radially outward. The miniature X-ray tube also comprises a second field emission cathode in the housing with a plurality of carbon nanotubes which emit electrons in the direction of longitudinal axis. The miniature X-ray tube only emits little heat and is robust against mechanical stresses.
Abstract:
A method of guiding a catheter during a treatment procedure includes acquiring scan data of a patient volume in position for the treatment procedure, registering volume data of the patient volume to the scan data, acquiring fluoroscopic data for the patient volume during the treatment procedure, and generating a volume representation of the fluoroscopic data during the treatment procedure. Generating the volume representation includes superimposing the fluoroscopic data on the volume data based on the registering. The volume representation of the fluoroscopic data is displayed, the volume representation showing a position of a mitral valve clip carried by the catheter relative to the patient volume.
Abstract:
Device for carrying out and monitoring an atherectomy, with which a cutting knife driven in a rotating manner by an external unit and set back to project into an opening in the tip of the catheter can be pressed onto the artery wall by means of an inflatable balloon arranged on the side of the catheter casing opposite the window opening, an atherectomy catheter being connected to an OCT catheter to form an integrated unit.