Abstract: A guidewire (10) compatible for use with magnetic resonance systems and/or x-ray fluoroscopy is made from non-metallic materials with a high specific electric impedance, preferably constructed primarily of polymers. An outer polymer tubular sheath (18) is provided that is sealed at a proximal end (24) and a distal end (26). One or more markers (16) may be provided in selected locations inside the polymer sheath (18). The markers (16) are magnetic resonance markers and/or radiopaque markers. The outer sheath (18) may be sheathed in a protective layer which is also non-metallic and tends to improve the physical characteristics of the guidewire.

Abstract: This invention related to a catheter comprising a tube-like basic body with a proximal and a distal end and a high-frequency generator associated with the catheter used for the purpose of generating high-frequency mechanical vibrations at the distal end of the catheter. The catheter comprises a lumen to be filled with liquid which is connected at the proximal end to an area inside of which a high-frequency movable member of the high-frequency generator is located and wherein at the distal end of the catheter a guide have been arranged for deflecting high frequency longitudinal waves traveling through the liquid inside the lumen in a lateral direction.

Abstract: This invention relates to a catheter comprising a tube-like basic body with a distal and a proximal end, wherein the catheter comprises an expandable filter element at the distal end and a device for reducing thrombi in size and removing them. The filter element can be formed by a number of strip-shaped wall sections of the basic body defined in between longitudinal cuts evenly distributed around the circumference and may furthermore comprise a means for moving the sections of the basic body positioned on either side of the wall sections towards each other in order to make the wall sections bend outwards.

Abstract: The drainage catheter comprises a basic tubular body having a distal end, a proximal end, a pressure channel in the tubular body and a discharge channel in the tubular body, the distal end having a bending of the pressure channel to communicate with the discharge channel. A nozzle ejector formation is provided in the distal end of the catheter after the bend in the pressure channel and having an orifice facing proximally into the discharge channel. The distal end further has an inlet opening disposed adjacent the orifice of the nozzle ejector formation. The basic tubular body has, at the proximal end, a pressure inlet to the pressure channel and a discharge outlet from the discharge channel.

Abstract: A double-lumen angioscopy catheter is provided which includes separate passageways for a guidewire and for an optic fiber bundle, which passageways are joined into a single tubular component for the portion of the catheter which enters the body. The passageways are separated from each other at the location external of the body whereby each of the guidewire and the optic fiber bundle can be inserted and removed in separate stages. An assembly can also be provided for passing flushing liquid through either or both of the passageways. The guidewire can be used to maneuver the distal end of the optic fiber bundle so as to accomplish controlled inspection within the body vessel. The angioscopy catheter facilitates a procedure whereby a single guidewire is inserted and remains in place throughout use of the angioscopy catheter, whether during pretreatment or posttreatment inspection.