Patent ID: 8562624

Claim:
A medical stone catching basket instrument, comprising: a multiwire basket unit with a plurality of wire sections which are connected with one another as a cohesive wire complex, wherein the cohesive wire complex is formed in one piece out of an essentially planar raw material, the plurality of wire sections extend essentially radially, are connected at respective radially interior ends at a wire linkage area, and are bent to form the multiwire basket unit such that the wire linkage area forms a distal end section of the medical stone catching basket instrument, the multiwire basket unit is arranged to move between a widened condition permitting passage of particles and a drawn together condition permitting retention of particles, the wire linkage area is rosette-shaped and is configured such that when the plurality of wire sections are bent to form the multiwire basket unit, the respective radially interior ends of the plurality of wire sections at the wire linkage area approach the wire linkage area essentially tangential to a plane perpendicular to a longitudinal axis of the multiwire basket unit to form a balloon-shaped, virtually tipless multiwire basket unit having no wires across a central region of the rosette-shaped wire linkage area, and respective radially outer ends of the plurality of wire sections opposite the respective radially interior ends are brought adjacent to one another to define adjacent pairs of wire sections, the adjacent pairs of wire sections are connected to one another at their respective radially outer ends, and a first wire section of each pair of the plurality of wire sections is not connected to a second wire section of the same pair at the rosette-shaped wire linkage area.