Abstract: An insertion system for release of a self-expanding stent device 18 in a body vessel has a first grip 33, which is fixedly connected to a shaft 15, a second grip 36, which is mounted on the shaft 15 to be movable in axial direction, a sheath 19, which, in a distal portion thereof, keeps the stent device radially compressed and which is fixedly connected to the second grip 36, and a retention element 17, which is fixedly connected to the shaft 15 and is guided in the sheath 19, wherein the retention element 17 holds the stent device 18 in its axial position relative to the first grip 33 when the sheath 19 is being retracted. Reference means 25 with an optical reference mark 26 are arranged for continuous monitoring of the axial position of the stent device 18.

Abstract: An apparatus for inserting an elongated device into a body cavity has a valve having a longitudinal axis. The valve is provided with a housing having a cup-shaped recess and a base, a first channel section provided in said base, a plunger having an end face, said plunger being at least with its end face inserted into and displacable within the cup-shaped recess, a second channel section provided in the plunger, and a hollow cylindrical elastic seal arranged within the cup-shaped recess between said base and said end face, said seal having an outer face and an inner face defining there between a cross section of the seal, a third channel section provided in the seal and surrounded by the inner face. The third channel section forms together with the first channel section and the second channel section a central channel, said central channel extending and being continuous along said longitudinal axis. Said seal is provided with a change in said cross section in a region along said longitudinal axis.

Abstract: An insertion system for release of a self-expanding stent device 18 in a body vessel has a first grip 33, which is fixedly connected to a shaft 15, a second grip 36, which is mounted on the shaft 15 to be movable in axial direction, a sheath 19, which, in a distal portion thereof, keeps the stent device radially compressed and which is fixedly connected to the second grip 36, and a retention element 17, which is fixedly connected to the shaft 15 and is guided in the sheath 19, wherein the retention element 17 holds the stent device 18 in its axial position relative to the first grip 33 when the sheath 19 is being retracted. Reference means 25 with an optical reference mark 26 are arranged for continuous monitoring of the axial position of the stent device 18.

Abstract: The present invention relates to a delivery system for a self-expanding stent with a hollow cylindrical body and a proximal and a distal end. At least the proximal end thereof has projecting loops pointing alternately in the proximal and distal direction, the loops having a shoulder and straight sections. In addition, there is an outer tube which passes through the stent and an inner tube which passes through the outer tube, the inner tube and the outer tube being designed to move axially with respect to one another. In addition, it is fitted with a locking system for the projecting loops at the proximal end of the stent for introduction of the stent into the body vessel, the locking system having a cap element with pin elements fixed to it which point axially in the proximal direction of the delivery system and a first engagement unit for the pin elements which is positioned proximal with respect to the cap element in the delivery system.