Guiding mandrel for catheter and similar instruments and manufacturing process thereof

Abstract

Abstract Guiding mandrel for venous or arterial catheters, gastric probes, puncture cannulas or similar instruments, comprised of a wire core (12) enveloped in a sheathing. In order to give the mandrel a good flexibility enabling important bendings, a sufficient stability enabling to advance without being subjected to undesirable deformations or suffering a sudden modification of stability or flexibility, and as well as to manufacture the mandrel in large series, the sheathing is comprised, in the case of a sheathing based on helically wound wire of a plurality of single wires (16) arranged next to each other, helically surrounding the wire core and flat inclined with respect to the axis of the mandrel, respectively the wire core is reduced, in the case of a sheathing based on synthetic material, approximately up to the proximal end of the sheathing.

Inventors

• 👤 Peter MÄRZ
• 👤 Jürgen POSTEL

Bibliographic Details