Abstract: A method for controlling movement of an imaging device in vivo, the method comprising the steps of providing an imaging device having a longitudinal axis and a magnetic component, said device to be inserted into a patient's body; providing a rotating magnetic field outside the patient's body; and advancing the rotating magnetic filed along the patient's body in a desired direction.

Abstract: A magnet arrangement for generating an NMR-compatible homogeneous permanent magnetic field is described. The invention has two permanent magnets, referred to hereafter as main magnets, which each have a magnet pole surface area. The magnet pole surface areas are situated parallel and at a distance to one another, so that the main magnets define an interspace on both sides through their magnet surface areas. The magnet pole surfaces of the main magnets each have a magnetic polarization opposite to one another. At least two annular permanent magnets are used, which are referred to hereafter as ring magnets, are situated coaxially to one another and jointly radially bound a ring inner chamber. The ring magnets are situated relative to the two main magnets in so that the ring inner chamber at least regionally encloses the interspace, and the magnetic fields of the main and ring magnets are constructively superimposed.

Abstract: A magnet arrangement for generating an NMR-compatible homogeneous permanent magnetic field is described. The invention has two permanent magnets, referred to hereafter as main magnets, which each have a magnet pole surface area. The magnet pole surface areas are situated parallel and at a distance to one another, so that the main magnets define an interspace on both sides through their magnet surface areas. The magnet pole surfaces of the main magnets each have a magnetic polarization opposite to one another. At least two annular permanent magnets are used, which are referred to hereafter as ring magnets, are situated coaxially to one another and jointly radially bound a ring inner chamber. The ring magnets are situated relative to the two main magnets in so that the ring inner chamber at least regionally encloses the interspace, and the magnetic fields of the main and ring magnets are constructively superimposed.

Abstract: The invention relates to an imaging NMR device and method in which an object is exposed to a stationary polarization field B0 and an electromagnetic alternating field. Nuclear resonant processes are induced in said object detected as test signals, and are visually represented. The stationary magnetic polarization field has at least one spatially limited volume region inside said object. The spatially limited volume region has a greater magnetic flux density than the remaining region of said object so that said nuclear resonant processes are induced solely in said spatially limited volume region. The test signals from said nuclear resonant processes induced inside said limited volume region are detected and displayed. The spatial position of said limited volume region (4) is changed at least once in a controlled manner and said test signals are detected again from said positionally modified volume region.

Abstract: A method for controlling movement of an imaging device in vivo, the method comprising the steps of providing an imaging device having a longitudinal axis and a magnetic component, said device to be inserted into a patient's body; providing a rotating magnetic field outside the patient's body; and advancing the rotating magnetic filed along the patient's body in a desired direction.

Abstract: Disclosed is a device for nuclear magnetic resonance examination of intracorporal sections of a person's body, the device having a coil arrangement which can be placed in immediate vicinity of an intracorporal section of the body which a stationary magnetic polarization field B0 and a radio-frequency alternating field penetrate. A coil arrangement is integrated in an encapsulated, self-sufficient unit having a shape and size that a person is able to swallow it and a transmitter unit, is connected to the coil arrangement which transmits induction signals coming from the coil arrangement wirelessly to an extracorporal receiving unit, which is integrated in the encapsulated self-sufficient unit.

Abstract: A probe head for NMR measurements as well as a method of operating this probe head is disclosed. The probe head includes a support body that carries a solenoid coil as measuring coil, as well as a feed line towards the solenoid coil, via which a sample material can be introduced into a measuring volume surrounded by the solenoid coil. The feed line is configured for receiving and conveying sample containers in the probe head. The probe head allows for an automated measurement of different samples, specifically of solid samples.

Abstract: The invention relates to an imaging NMR method as well a NMR device in which a to-be-examined object is exposed to a stationary polarization field B0 and to an electromagnetic alternating field, and nuclear resonant processes which are detected as test signals and are visually represented are induced in said object. The invention is characterized in that said stationary magnetic polarization field is provided with at least one spatially limited volume region inside said object, said spatially limited volume region having a greater magnetic flux density than the remaining region of said object so that said nuclear resonant processes are induced solely in said spatially limited volume region, said test signals from said nuclear resonant processes induced inside said limited volume region are detected, and the spatial position of said limited volume region (4) is changed at least once in a controlled manner and said test signals are detected again from said positionally modified volume region.

Abstract: The present invention relates to a probe head for NMR measurements as well as to a method of operating this probe head. The probe head comprises a support body (6) that carries a solenoid coil (7) as measuring coil, as well as a feed line (12) towards the solenoid coil, via which a sample material can be introduced into a measuring volume (9) surrounded by the solenoid coil. The feed line (12) is configured for receiving and conveying sample containers (10) in the present probe head. The present probe head allows for an automated measurement of different samples, specifically also of solid samples.

Abstract: A coupling medium of a thin layer of a homogenized mixture of at least one polysaccharide or disaccharide such as trehalose; a surface-active substance such as sodium dioctylsulfosuccinate; and water acts as a coupling medium for transverse ultrasonic waves, when the homogenized mixture is applied to surfaces of a transmitting, respectively receiving, transducer for transverse ultrasonic waves; and a surface of a probe.