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US 2026/0110327 A1Published application
Catheter pump arrangement and flexible shaft arrangement having a core
AssigneeEcp Entwicklungsgesellschaft Mbh
InventorsDaniel Roehn, Reiner Liebing
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Abstract
A flexible shaft arrangement is described herein having a flexible hollow shaft (1, 2) which has an end at the drive side and an end at the output side, wherein the hollow shaft is reinforced sectionally between these ends by a core (3, 4) extending in its interior. Stiffer and more flexible sections can hereby be selectively positioned within the shaft arrangement.
Claims21
1-16. (canceled)
A heart catheter pump arrangement comprising:
- a blood pump and a flexible drive shaft arrangement,
- wherein the blood pump comprises an axial pump and a rotor, and
- the flexible drive shaft arrangement comprises:
- a drive shaft having a proximal end and a distal end, the drive shaft formed with a hollow lumen,
- wherein the drive shaft comprises:
- a first portion having a first bending stiffness, and
- a second portion having a second bending stiffness that is different from the first bending stiffness.
4 more elements
Dependencies are inferred from the claim text.