Abstract: An ablation system includes a retractable sheath including a lumen; a first electrode in the lumen; a pre-bent telescopic tube extendable from the lumen and including a second electrode, wherein the first electrode and the second electrode are configured to deliver an electric field energy to target tissue in a patient.

Abstract: A method for extracting spatial resolution and/or velocity resolution of a single-input single-output radar acquiring raw radar data with a frequency scanning antenna is provided. The method includes steering a radar beam with the aid of the frequency scanning antenna with respect to an area to be illuminated by the radar, and dividing the area into at least two angular sectors. In this context, the at least two angular sectors are configured in a manner that the at least two angular sectors overlap with respect to each other.

Abstract: A device for orienting a medical object in respect of an object under examination includes an orientation element, a guide element, an ancillary element, and a light guiding device. The orientation element is movably mounted about a center of rotation and is configured for the longitudinal guidance of the medical object along a guide axis. The ancillary element includes an identification marker configured to be arranged in the center of rotation. The light guiding device is configured to emit a predefined distribution of light for specification of a path. The arrangement of orientation element and ancillary element may be moved about the center of rotation arranged on the path, such that the predefined distribution of light illuminates the identification marker with a predefined light pattern, when the guide axis of the orientation element is oriented in a defined positional relationship in respect of the path.

Abstract: A device for orienting a medical object in respect of an object under examination includes an orientation element, a guide element, an ancillary element, and a light guiding device. The orientation element is movably mounted about a center of rotation and is configured for the longitudinal guidance of the medical object along a guide axis. The ancillary element includes an identification marker configured to be arranged in the center of rotation. The light guiding device is configured to emit a predefined distribution of light for specification of a path. The arrangement of orientation element and ancillary element may be moved about the center of rotation arranged on the path, such that the predefined distribution of light illuminates the identification marker with a predefined light pattern, when the guide axis of the orientation element is oriented in a defined positional relationship in respect of the path.

Abstract: A patient table includes a support surface for a patient. The patient table includes a first table subunit, to provide a first surface region of the support surface; a second table subunit, to provide a second surface region; and an angle unit connected thereto, to fix a position of the first table subunit relative to the second table subunit such that the first surface region is provided in a first plane and the second surface region is provided in a second plane, intersecting the first plane at an intersection angle; and such that the support surface is secured against a change of the intersection angle upon loading of the support surface by the patient. The angle unit includes at least a first coupling element, to interact functionally with a first counter-coupling element provided on the first table subunit, to releasably connect the angle unit to the first table subunit.

Abstract: The disclosure relates to methods, systems, and computer program products for registering a set of X-ray images with a navigation system. In the method, by a camera, at least one image of a reference object is recorded and, on the basis thereof, a current posture of the reference object is determined. It is then checked whether this posture fulfils a specified criterion, which also on an arrangement of the reference object at least partially outside a planned reconstruction volume of the X-ray device, predicts an expected successful registration. On non-fulfillment of the criterion, a signal for adaptation of a relative alignment between the X-ray device and the reference object is automatically output. On fulfillment of the criterion, the X-ray images of the reference object are recorded, the posture of the reference object is determined, and the registration is carried out using the determined postures as reference.

Abstract: A beam-steering antenna system for improving the angular coverage comprises a transmission line comprising a first end and a second end. The antenna system further comprises a plurality of antenna elements selectively coupled to the transmission line for selectively coupling energy within the transmission line to the plurality of antenna elements. Furthermore, the antenna system comprises a power amplifier coupled to the first end of the transmission line configured to couple-in an input signal into the transmission line during a first operating period. Moreover, the antenna system comprises a delay line coupled to the second end of the transmission line configured to reflect a portion of the input signal into the transmission line, thereby providing a reflection signal during a second operating period.

Abstract: A method for extracting spatial resolution and/or velocity resolution of a single-input single-output radar acquiring raw radar data with a frequency scanning antenna is provided. The method includes steering a radar beam with the aid of the frequency scanning antenna with respect to an area to be illuminated by the radar, and dividing the area into at least two angular sectors. In this context, the at least two angular sectors are configured in a manner that the at least two angular sectors overlap with respect to each other.

Abstract: The disclosure relates to methods, systems, and computer program products for registering a set of X-ray images with a navigation system. In the method, by a camera, at least one image of a reference object is recorded and, on the basis thereof, a current posture of the reference object is determined. It is then checked whether this posture fulfils a specified criterion, which also on an arrangement of the reference object at least partially outside a planned reconstruction volume of the X-ray device, predicts an expected successful registration. On non-fulfillment of the criterion, a signal for adaptation of a relative alignment between the X-ray device and the reference object is automatically output. On fulfillment of the criterion, the X-ray images of the reference object are recorded, the posture of the reference object is determined, and the registration is carried out using the determined postures as reference.

Abstract: An apparatus for medical examinations includes a first arm that is rotatable about an axis, the first arm being configured to carry a radiation source or a radiation detector. The apparatus for medical examinations also includes a second arm that is rotatable about the axis, the second arm being configured to carry a radiation source or a radiation detector. The second arm is attached to the first arm and is rotatable relative to the first arm.

Abstract: A patient table includes a support surface for a patient. The patient table includes a first table subunit, to provide a first surface region of the support surface; a second table subunit, to provide a second surface region; and an angle unit connected thereto, to fix a position of the first table subunit relative to the second table subunit such that the first surface region is provided in a first plane and the second surface region is provided in a second plane, intersecting the first plane at an intersection angle; and such that the support surface is secured against a change of the intersection angle upon loading of the support surface by the patient. The angle unit includes at least a first coupling element, to interact functionally with a first counter-coupling element provided on the first table subunit, to releasably connect the angle unit to the first table subunit.

Abstract: An apparatus for medical examinations includes a first arm that is rotatable about an axis, the first arm being configured to carry a radiation source or a radiation detector. The apparatus for medical examinations also includes a second arm that is rotatable about the axis, the second arm being configured to carry a radiation source or a radiation detector. The second arm is attached to the first arm and is rotatable relative to the first arm.

Abstract: A method for acquiring an image data record with an x-ray imaging system with a recording system that may be rotated around an examination object is provided. The recording system is embodied for an endless rotation. The method includes providing a calibration data record that has measurement data from a plurality of rotations of the recording system in endless rotation. At least one selectable acquisition parameter is received from the group consisting of: period of acquisition; number of projection images to be acquired; angular region of the acquisition to be recorded; and angular increment between every two sequential projection images. An acquisition protocol with the selected acquisition parameter(s) is determined from the provided calibration data record. The determined acquisition protocol is loaded, and an image data record is recorded using the determined acquisition protocol.

Abstract: An antenna module and a transceiver that includes the antenna module which allow high-speed full-duplex communication. The antenna module has at least one antenna for transmitting and receiving electromagnetic radiation, at least one transmitter connection element and at least one receiver connection element for electrically connecting the antenna module to a transmitter circuit and a receiver circuit. The at least one transmitter connection element is in a transmitter section, the at least one receiver connection element is in a receiver section, and the at least one antenna is in an antenna section. The antenna section is between the at least one receiver section and the at least one transmitter section.

Abstract: An instrument for a manipulator arm of an endoscopic robot is provided. The instrument has a treatment head for carrying out a medical measure in a patient, an instrument base carrying the treatment head, a coupling element that can be fastened to the manipulator arm, and a sterilizable sleeve enclosing the instrument and having at least one opening which can be sealingly placed on the instrument base. The coupling element protrudes from the opening.

Abstract: Methods and Systems are provided for creating a volume image of a moving object under examination in a selected state of motion from a series of projection images captured during rotational motion of an image-capture system about the object under examination in each case with a plurality of projection images from different projection directions. The series of projection images are acquired. A first state of motion is selected by selecting a first projection image that images the first state of motion. A consistency or redundancy condition is determined. Further projection images are identified that image the first state of motion, by applying the consistency or redundancy condition to the projection images of the series. The identified projection images and the first projection image are reconstructed to yield a reconstructed volume image.

Abstract: A method for acquiring an image data record with an x-ray imaging system with a recording system that may be rotated around an examination object is provided. The recording system is embodied for an endless rotation. The method includes providing a calibration data record that has measurement data from a plurality of rotations of the recording system in endless rotation. At least one selectable acquisition parameter is received from the group consisting of: period of acquisition; number of projection images to be acquired; angular region of the acquisition to be recorded; and angular increment between every two sequential projection images. An acquisition protocol with the selected acquisition parameter(s) is determined from the provided calibration data record. The determined acquisition protocol is loaded, and an image data record is recorded using the determined acquisition protocol.

Abstract: An antenna module and a transceiver that includes the antenna module which allow high-speed full-duplex communication. The antenna module has at least one antenna for transmitting and receiving electromagnetic radiation, at least one transmitter connection element and at least one receiver connection element for electrically connecting the antenna module to a transmitter circuit and a receiver circuit. The at least one transmitter connection element is in a transmitter section, the at least one receiver connection element is in a receiver section, and the at least one antenna is in an antenna section. The antenna section is between the at least one receiver section and the at least one transmitter section.

Abstract: An instrument system is provided. The instrument system has an endoscopic instrument with a work head that is mounted on one end of a flexible support arm and can be inserted into a patient. The instrument system has a trocar that can be placed in the body surface of the patient and has a main body which can be fixed in position relative to the patient and which has a through-opening for the instrument, a guide body which, when the instrument is inserted, encloses and guides a longitudinal portion of the support arm with a guide channel in such a way that a spatial guiding direction of the support arm is defined at least thereon, with an adjustment element acting on the guide body and allowing a specific change of a relative position of the guiding direction with respect to the main body.

Abstract: An apparatus for medical examinations includes a first arm that is rotatable about an axis, the first arm being configured to carry a radiation source or a radiation detector. The apparatus for medical examinations also includes a second arm that is rotatable about the axis, the second arm being configured to carry a radiation source or a radiation detector. The second arm is attached to the first arm and is rotatable relative to the first arm.