Flexible catheter with a drive shaft
AssigneeEcp Entwicklungsgesellschaft Mbh
InventorsMario Scheckel, Joerg Schumacher
Life of this patent
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Abstract
The invention relates to a flexible catheter (1) with a drive shaft (2), with a sleeve (6) surrounding the drive shaft (2) and with a sheath (7) surrounding the drive shaft (2) and the sleeve (6), wherein the drive shaft, the sleeve (6) and the sheath (7) are pliable, wherein the drive shaft (2) at a proximal end of the drive shaft (2) comprises a coupling element (5) for connecting the drive shaft (2) to a drive motor (18), wherein the drive shaft (2) at least regionally consist of a alloy which contains at least 10% by weight of chromium, nickel and cobalt in each case. The invention moreover relates to a blood pump arrangement with such a catheter.
Claims39
A flexible catheter comprising:
- a drive shaft;
- a sleeve surrounding the drive shaft;
- and
- a sheath surrounding the drive shaft and the sleeve, wherein the drive shaft, the sleeve and the sheath are configured to be pliable, wherein the drive shaft at a proximal end of the drive shaft comprises a coupling element for connecting the drive shaft to a drive motor;
- and
- wherein the drive shaft has an outer diameter of less than 1 mm, and at least in regions consists of a material configured to have a tensile strength between 1800 N/mm2 and 2400 N/mm2.
Dependencies are inferred from the claim text.