Biotronik Ag

Felix Westhoff

Tobias Schaefer

Nuria Rothfuchs

Tobias SCHÄFER

A catheter having a catheter shaft connected to a two-part connecting piece. The catheter shaft includes a first tube forming an inflation lumen and a second tube disposed at least partially within the first tube to form a second lumen. The first tube and the second tube terminate proximally at a same longitudinal position. An outer surface of the second tube is welded longitudinally to an inner surface of the first tube to form a weld seam. The connecting piece includes a channel through a body of the connecting piece extending to and in fluid communication with the inflation lumen and a conical-shaped proximal section or element with a conical-shaped outer contour that fits into a distal element so that the second lumen seals around the proximal element and sole access to a proximal end of the inflation lumen is through the distal element.

Catheter shaft and catheter and method for the production thereof

A handle for a catheter having an inner shaft and a retractable shaft. The handle includes a housing, a pull cable and a release button mounted movably on the housing. A sleeve is secured in the housing and a brake hose is guided movably in the longitudinal direction in a continuous opening of the sleeve. The brake hose has a first continuous opening for arrangement of the pull cable and a second continuous opening for arrangement of the inner shaft. The brake hose configured and arranged such that its position relative to the sleeve in a first state is fixed by the release button, and such that the brake hose in a second state is displaceable after actuation of the release button together with the pull cable in the longitudinal direction of the sleeve and relative to the sleeve and the inner shaft in the proximal direction in order to retract the retractable shaft, such that the retractable shaft can be connected to the pull cable.

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Zurich, Switzerland

Felix Westhoff