Abstract:
Die Erfindung bezieht sich auf eine Drahtkorbeinheit mit einem ballonförmigen Drahtkorb aus mehreren Drahtsträngen (2a, 2b, 2d, 2e), die sich zwischen einem vorderen und einem hinteren Drahtkorbende erstrecken und von einem oder mehreren Drahtstücken gebildet sind, sowie mit einem Fixierscheibenelement (13a), an dem die Drahtstränge am vorderen Drahtkorbende unter Bildung eines vorderen Drahtkorbabschlusses fixiert sind, wobei das Fixierscheibenelement wenigstens eine erste und eine zweite Durchführungsöffnung (14a, 14b) aufweist. Erfindungsgemäß ist wenigstens ein erster (2a) der Drahtstränge von einem ersten Drahtstück gebildet, das durch eine erste (14a) der Durchführungsöffnungen des Fixierscheibenelements von hinten nach vorne und unter U-förmiger Umlenkung (2c) durch eine zweite (14b) der Durchführungsöffnungen des Fixierscheibenelements von vorne wieder nach hinten durchgeschleift und so am Fixierscheibenelement fixiert ist. Verwendung z.B. für medizinische Steinfangkorbinstrumente.
Abstract:
Disclosed is a snare instrument with a shaft area, a snare structure in a snaring area distally adjoining the shaft area, and a plurality of noose wires. The snare structure can be pulled closed, from an opened position with distally open snare, and has a plurality of flexible bending tubes which extend distally forwards and radially outwards in a radiating shape to form the snare, and of which the distal ends can be moved radially inwards towards each other so as to pull the snare structure closed. Each noose wire extends with a first base portion from the shaft area loosely through one of the bending tubes as far as the distal end thereof, from there with a noose arch to the distal end of the same or another bending tube, and from there with a second base portion loosely through the latter back to the shaft area. At least one of the noose wire base portions extends through each bending tube.
Abstract:
Disclosed is a snare instrument with a shaft area, a snare structure in a snaring area distally adjoining the shaft area, and a plurality of noose wires. The snare structure can be pulled closed, from an opened position with distally open snare, and has a plurality of flexible bending tubes which extend distally forwards and radially outwards in a radiating shape to form the snare, and of which the distal ends can be moved radially inwards towards each other so as to pull the snare structure closed. Each noose wire extends with a first base portion from the shaft area loosely through one of the bending tubes as far as the distal end thereof, from there with a noose arch to the distal end of the same or another bending tube, and from there with a second base portion loosely through the latter back to the shaft area. At least two of the noose wire base portions extend, connected to each other, in at least one of the bending tubes.
Abstract:
The invention relates to a wire basket unit, comprising a balloon-shaped wire basket made of several wire strands (2a, 2b, 2d, 2e), which extend between a front and a rear wire basket end and are formed by one or more wire pieces, and further comprising a fixing disk element (13a), on which the wire strands are fixed at the front wire basket end while forming a front wire basket closure, the fixing disk element having at least one first and a second passage opening (14a, 14b). According to the invention, at least one first (2a) of the wire strands is formed by a first wire piece, which is dragged through a first (14a) of the passage openings of the fixing disk element from the back to the front and forming a U-shaped deflection (2c) through a second (14b) of the passage openings of the fixing disk element again from the front to the back and thereby fixed on the fixing disk element. The use is, for example, for medical stone basket instruments.