Catheters with enhanced flexibility and associated devices, systems, and methods
AssigneeMedtronic Ardian Luxembourg S.a.r.l.
InventorsRudy Beasley, Justin Goshgarian, Vincent Ku
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Abstract
A neuromodulation catheter includes an elongate shaft and a neuromodulation element. The shaft includes two or more first cut shapes and two or more second cut shapes along a helical path extending around a longitudinal axis of the shaft. The first cut shapes are configured to at least partially resist deformation in response to longitudinal compression and tension on the shaft and torsion on the shaft in a first circumferential direction. The second cut shapes are configured to at least partially resist deformation in response to longitudinal compression on the shaft and torsion on the shaft in both first and second opposite circumferential directions.
Claims23
A catheter comprising:
- a first helically wound elongate member;
- a second helically wound elongate member, the first helically wound elongate member being disposed within the second helically wound elongate member, at least one of the first helically wound elongate member or the second helically wound elongate member comprising a plurality of filaments wound in parallel, and the second helically wound elongate member being counter-wound relative to the first helically wound elongate member, wherein the at least one of the first helically wound elongate member or the second helically wound elongate member comprises gaps between at least some adjacent windings of the plurality of filaments;
- and
- an outer jacket positioned over at least one of the first or second helically wound elongate members.
A catheter comprising:
- a first helically wound elongate member comprising a first plurality of filaments wound in parallel;
- a second helically wound elongate member comprising a second plurality of filaments wound in parallel, the first helically wound elongate member being concentric with the second helically wound elongate member, one of the first helically wound elongate member or the second helically wound elongate member comprising a right-hand helical coil and the other of the first helically wound elongate member or the second helically wound elongate member comprising a left-hand helical coil, wherein at least one of the first helically wound elongate member or the second helically wound elongate member comprises gaps between at least some adjacent windings of the respective first or second plurality of filaments;
- and
- an outer jacket positioned over at least one of the first or second helically wound elongate members.
Dependencies are inferred from the claim text.