Abstract: A catheter for dialysis for long-term application features a proximal end for introducing into a blood vessel, a distal end for extracting blood and for introducing purified blood, and a fixing member surrounding a tube section for fixing the catheter on the patient. The fixing member has a receiving part and an opening part, wherein, with respect to the receiving part, the opening part can be moved from an opening position, in which the tube section is insertable into the fixing member, into a closing position, in which the tube section is fixed in the fixing member.

Abstract: The invention relates to a catheter for dialysis, in particular for long-term application, comprising a proximal end for introducing into a blood vessel, a distal end for extracting blood and for introducing purified blood, and at least one fixing means surrounding a tube section for fixing the catheter on the patient. The fixing means has a receiving part and an opening part, wherein, with respect to the receiving part, the opening part can be moved from an opening position, in which the tube section is insertable into the fixing means, into a closing position, in which the tube section is fixed in the fixing means.

Abstract: Catheter system for inserting and positioning a double-lumen catheter in a blood vessel, including a double-lumen catheter having a distal catheter tip, with a first lumen and a second lumen, a first mandrin which extends through the first lumen and a second mandrin which extends through the second lumen, both mandrins of the catheter being radio-opaque. The distal end of the second mandrin is arranged at a distance (X) in the proximal direction from the distal catheter tip, the distance between the distal catheter tip and the distal end of the second mandrin corresponding in particular to a functional catheter tip length.

Abstract: A delivery catheter including a valve body having a closeable valve opening for introducing a medical device in insertion direction into, in particular, a blood vessel, the valve opening, when a medical device is not introduced, tapering in the insertion direction, and a sealing section, which in a closed position at least in sections is subject to a pretension, directly adjoins the taper, so that the sealing section, when a medical device is introduced, is actuated from the closed position into an open position in such manner that the sealing section encloses the medical device in a substantially fluid-tight manner.

Abstract: The invention relates to a catheter for dialysis, in particular for long-term use, having a proximal end for insertion into a blood vessel, having a middle wall extending along a longitudinal axis and forming a midplane, wherein the middle wall separates an introduction lumen from a removal lumen, wherein the removal lumen has at the proximal end a removal opening for the removal of blood, and the introduction lumen has at the proximal end an introduction opening for the introduction of purified blood, wherein the removal opening is located in a plane which intersects the midplane in a section line at an acute angle w1, wherein the section line and the longitudinal axis enclose an acute angle ?, and in that the introduction opening is located in a plane which intersects the midplane in a section line s2 at an acute angle, wherein the section line and the section line enclose an angle which lies in the range from 60° to 120°.

Abstract: A delivery catheter including a valve body having a closeable valve opening for introducing a medical device in insertion direction into, in particular, a blood vessel, the valve opening, when a medical device is not introduced, tapering in the insertion direction, and a sealing section, which in a closed position at least in sections is subject to a pretension, directly adjoins the taper, so that the sealing section, when a medical device is introduced, is actuated from the closed position into an open position in such manner that the sealing section encloses the medical device in a substantially fluid-tight manner.