Abstract: A method and system are provided for analyzing electromagnetic brain signals such as EEG and ECoG signals in a subject in real time and which avoids the need for time-intensive retrospective analysis of brain activity in the subject.

Abstract: An implant according to the invention includes first thermoplastic material portions, and second thermoplastic material portions liquefiable by mechanical vibrations and being in contact with the first thermoplastic material portions, wherein the second thermoplastic material portions preferably constitute at least a part of a surface of the implant, and wherein the first thermoplastic material portions have a glass transition temperature above an implantation temperature (about 20° C. to 40° C.), and wherein the second thermoplastic material portions either have a glass transition temperature below said implantation temperature or include means for transforming non-mechanical energy into heat.

Abstract: A device for detachably clamping fastening elements in a surgical fixing or repositioning device. The device may a rod with a longitudinal axis. A first and second pair of clamping jaws may be operably associated with the rod. Each pair of clamping jaws may have a side surface as well as an inner clamping jaw and an outer clamping jaw, which may have indentations forming a channel. The channels may be opened towards the side surface of the clamping jaws. A fastening means may be positioned in the channels by pushing the fastening means into the openings in the side surface in a direction which may be at an angle with respect to the longitudinal axis of the rod. An elastic element may be positioned between the inner and outer clamping jaws of at least one pair of clamping jaws so as to resist movement of the inner and outer clamping jaws with respect to each other as a fastening means is inserted therebetween.

Abstract: A device for the coaxial connection of a surgical rotating tool to a shaft and the method of forming such a device. The device comprises a shaft defining a central axis and having a front end, a hollow body having a first end for engaging the front end of the shaft and a second end for engaging the tool. The hollow body further includes a wall defining a cavity coaxial to the central axis, the wall has at least one deformed impression thereby defining at least one projection in communication with the cavity. The at least one projection is engaged with the shaft to produce a rotatively and axially fixed connection between the shaft and the hollow body.

Abstract: The invention relates to an intramedullary nail used for treating fractures of the femur. It comprises a distal end, which is appointed for insertion into the marrow cavity channel, a proximal end, and a longitudinal axis. A first bore is located adjacent the proximal end and extends through the proximal end and transversely intersects the longitudinal axis, and serves to accommodate a femoral head screw. The center axis of the first bore forms an angle with the longitudinal axis that ranges from 110° to 150°. A second bore is located between the first bore and the proximal end and extends through the proximal end and transversely intersects the longitudinal axis, and serves to accommodate a hip pin. The second bore is at least partially shaped as an oblong hole or slot with a width B and a length L>B, and the length L of the oblong hole extends in the direction of the longitudinal axis.

Abstract: A device for the coaxial connection of a surgical rotating tool to a shaft and the method of forming such a device. The device comprises a shaft defining a central axis and having a front end, a hollow body having a first end for engaging the front end of the shaft and a second end for engaging the tool. The hollow body further includes a wall defining a cavity coaxial to the central axis, the wall has at least one deformed impression thereby defining at least one projection in communication with the cavity. The at least one projection is engaged with the shaft to produce a rotatively and axially fixed connection between the shaft and the hollow body.

Abstract: The invention relates to an intramedullary nail used for treating fractures of the femur. It comprises a distal end, which is appointed for insertion into the marrow cavity channel, a proximal end, and a longitudinal axis. A first bore is located adjacent the proximal end and extends through the proximal end and transversely intersects the longitudinal axis, and serves to accommodate a femoral head screw. The center axis of the first bore forms an angle with the longitudinal axis that ranges from 110° to 150°. A second bore is located between the first bore and the proximal end and extends through the proximal end and transversely intersects the longitudinal axis, and serves to accommodate a hip pin. The second bore is at least partially shaped as an oblong hole or slot with a width B and a length L>B, and the length L of the oblong hole extends in the direction of the longitudinal axis.

Abstract: For determining flowing material within a body by NMR tomography, a disk-shaped area in the body is excited, whereafter one applies a flow phase gradient directed in the same sense as the selection gradient (1) and comprising two successive, inversely identical sections (3,4) whose values are varied for the successive excitations. The echo signals obtained, which originate substantially from moving material, are received at a reading gradient directed perpendicularly to the selection gradient. 2DFT reconstruction of a set of spin echo signals furnishes an image which contains the spatial coordinate of the reading gradient in one direction and the flow speed of the material flowing in a direction perpendicular to the excited area in the second direction.

Abstract: The present invention provides a process for the production of a mixture for a tea drink with fruit flavour, wherein a fruit concentrate is mixed with a powder of plant parts, the fruit concentrate is dried and the dried fruit concentrate is subsequently mixed with dried plant parts.

Abstract: For recording the nuclear magnetic resonance in selected areas of a body for the purpose of representing body cross-sections in the form of images (NMR tomography), wherein the nuclear spins of a selected type present in the area of one plane of the body are subjected to a superimposed gradient field varying in the selected cross-sectional plane, and selectively excited, the excitation of the nuclear spins is effected by application of a pulse sequence which induces the nuclear spins to supply at one stage a number of chronologically successive induction signals. The induction signals corresponding to each other in chronolical sequence are then processed to obtain separate sets of image signals so that by one single measurement a sequence of cross-sectional images is obtained which differ from each other by the intensity of the excited nuclear spins which varies according to the relaxation times T.sub.1 or T.sub.2.

Abstract: A drive train is situated between an electric motor and a rotatable support disk to which an exchangeable cleaning or treatment implement or tool is fastened. In order to prevent overloading of the motor as well as to optimally adapt the speed of rotation of the support disc to operating conditions, especially the surface properties of the floor, the drive train possesses a friction transmission drive, in particular a friction wheel drive. This friction transmission drive automatically alters the rotational speed of the support disc in accordance with the torque required by it with a constant driving torque of the motor.

Abstract: For the purpose of limiting NMR spectroscopy to a selected area of a body the said area is prepared by applying first a homogeneous magnetic field passing through the entire body and superimposing thereafter upon the said magnetic field a first magnetic field of identical orientation whose strength varies in a first sense (first field gradient), exciting thereafter all the selected nuclear spins present within the body and in addition, selectively, only the nuclear spins present in a first body plane containing the volume element and extending vertically to the said first field gradient so that the selected nuclear spins contained in this body plane are returned to the direction of the homogeneous magnetic field while the nuclear spins outside this plane receive an orientation differing from the sense of the homogeneous magnetic field.

Abstract: A pulse generator circuit comprises a pulse source and an output line having a specific characteristic impedance and having an input and an output end, the output end being connectable to a high impedance external load and the input end being connectable to and disconnectable from said pulse source. An internal impedance being substantially equal to said characteristic impedance is provided and is connectable to and disconnectable from said input end of the output line. The input end of the output line can be alternatively connected to either the pulse source or to the internal impedance by a switching means. The switching means is controlled by control means in such a way that during delivery of pulses by said pulse source the pulse source is connected to said input end of the output line whereas said internal impedance is connected to the input end substantially during the intervals between the pulses.

Abstract: A strand separation arrangement is disclosed wherein a multi-conductor power cable is separated into individual strands. Each of the strands is provided with a thick walled shrunk-on tubing which extends into a sheath surrounding the power cable. The sheath is provided with a plurality of clefts arranged axially about a circumference of the end of the sheath to permit the sheath to expand circularly. Various bandages and shrunk on tubes surround the place of separation of the strands with a shrunk on fitting piece sealing the entire arrangement. Additional mechanical strength is provided for the separation arrangement by the present invention.