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US 7,682,673 B2Granted
Blood-flow tubing
AssigneeTayside Flow Technologies Limited
InventorsJohn Graeme Houston, John Bruce Cameron Dick, Peter Stonebridge
Life of this patent
Estimating the term…
Abstract
An artificial or modified natural blood flow tubing has a helical-flow inducer to induce helical flow in such fashion as to eliminate or reduce turbulence. One inducer is a tubular stent of expansible mesh having a helical vane.
Claims9
An intravascular stent comprising a metal tubular mesh member, the tubular mesh member having an internal helical formation to induce spiral-flow therethrough, the internal helical formation having a helix angle between 5 and 16 degrees relative to a longitudinal axis of the stent.
An intravascular stent comprising:
- an expansible tubular mesh member having a collapsed form to be inserted into a vein and an expanded form to be retained within the vein;
- the mesh member having at least one vane stationarilly attached to an interior thereof and extending helically to induce spiral flow of blood, said at least one vane having a helix angle of between 5 and 16 degrees relative to a longitudinal axis of the mesh member.
Dependencies are inferred from the claim text.