Guide extension catheter with helically-shaped entry port
AssigneeMedtronic Vascular, Inc.
InventorsColm Connolly, Patrick Griffin
Life of this patent
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Abstract
A guide extension catheter includes a push member and a distal shaft coupled to and extending distally from the push member. The distal shaft includes a shaft wall and a passageway. The shaft wall includes a helically-shaped proximal end and a distal end. The helically-shaped proximal end coils helically about a first central longitudinal axis of the passageway of the distal shaft. The helically-shaped proximal end of the shaft wall defines a helically-shaped entry port of the distal shaft. The distal shaft may include a helically-shaped collar coupled to the helically-shaped proximal end of the distal shaft, the collar defining the helically-shaped entry port of the distal shaft.
Claims7
A guide extension catheter comprising:
- a push member including a proximal portion and a distal portion;
- and
- a distal shaft coupled to the push member and extending distally therefrom, the distal shaft including a shaft wall and a passageway, the shaft wall including a proximal end and a distal end, the proximal end being angled such that the proximal end is not perpendicular to a central longitudinal axis of the passageway,
- wherein the distal portion of the push member is formed into a plurality of helical windings, the distal portion being coupled to the proximal end of the shaft wall the plurality of helical windings forming an angled entry port to the distal shaft, wherein the angled entry port is not perpendicular to the central longitudinal axis of the passageway.
Dependencies are inferred from the claim text.