Abstract: In a vascular anchoring device intended to be introduced into a blood vessel by a catheter and including braces (2) that are expandable in the radial direction, the anchoring device is formed by a substantially hollow-cylindrical part (1) including axially extending braces (2) departing from an end side, and a locking member (3) coaxially guided within the hollow-cylindrical part (1) along a guide wire (4) of the catheter. The locking member (3) carries at least one ramp surface (9) on its end facing the braces (2), which ramp surface causes the braces (2) to expand by an axial displacement relative to the braces (2), and at least one stop (10) cooperating with the hollow-cylindrical part (1) in the expanded position. The guide wire (4) carries a further stop (7) which cooperates with a counter stop surface (8) of the locking member (3), upon displacement of the guide wire (4).

Abstract: In a vascular anchoring device intended to be introduced into a blood vessel by a catheter and including braces (2) that are expandable in the radial direction, the anchoring device is formed by a substantially hollow-cylindrical part (1) including axially extending braces (2) departing from an end side, and a locking member (3) coaxially guided within the hollow-cylindrical part (1) along a guide wire (4) of the catheter. The locking member (3) carries at least one ramp surface (9) on its end facing the braces (2), which ramp surface causes the braces (2) to expand by an axial displacement relative to the braces (2), and at least one stop (10) cooperating with the hollow-cylindrical part (1) in the expanded position. The guide wire (4) carries a further stop (7) which cooperates with a counter stop surface (8) of the locking member (3), or a stop surface of the hollow-cylindrical part (1), upon displacement of the guide wire (4).

Abstract: A device is disclosed for withdrawing a catheter or a probe from a body cavity or a body vessel with a drive which preferably is a friction drive and engages the axially movable part of the catheter. The drive is formed by at least one roller which is mounted for rotation around a shaft extending transversely to the direction of pull, which roller cooperates with at least one spring-loaded counter-roller, the rollers enclosing the catheter or the probe, with at least one roller being connected to a driving motor.

Abstract: There is disclosed a process for the preparation of vat dyes that dye cellulosic material in a grey or black shade of good fastness properties. The process comprises brominating dibenzanthrone and reacting the brominated reaction product with 1-aminoanthraquinone in a single step.