Catheter shaft and catheter and method for the production thereof
AssigneeBIOTRONIK SE & Co. KG
InventorsFelix WESTHOFF, Tobias SCHAEFER
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Abstract
A catheter having a catheter shaft connected to a two-part connecting piece. The catheter shaft includes a first tube forming a first lumen and a second tube disposed at least partially within the first tube to form a second lumen. The first and second tubes 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 conical-shaped proximal 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 first lumen is through the distal element.
Claims9
A catheter comprising a catheter shaft connected to a two-part connecting piece, the catheter shaft comprising a first tube forming a first lumen and a second tube disposed at least partially within the first tube to form a second lumen, wherein the first and second tubes terminate proximally at a same longitudinal position, wherein an outer surface of the second tube is welded longitudinally to an inner surface of the first tube to form a weld seam, and wherein the connecting piece comprises a conical-shaped proximal 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 first lumen is through the distal element.
Dependencies are inferred from the claim text.