Devices and methods for diverting blood flow from a first vessel
AssigneeInari Medical, Inc.
InventorsRowan Olund Hettel, David Hugo Deaton, Sophie Humbert
Life of this patent
Estimating the term…
Abstract
Devices and methods divert blood flow from a first vessel to a second vessel and maintain blood flow in the first vessel. The device includes a first segment and a second segment. The first segment is configured to anchor in the first vessel. The first segment includes a window to allow blood to flow into the first segment, through the window, and distal in the first vessel. The second segment is configured to anchor in the second vessel. The second segment is configured to allow blood to flow into the first segment, through the second segment, and into the second vessel.
Claims22
A device for diverting blood flow from a first vessel to a second vessel while maintaining blood flow in the first vessel, the device comprising:
- a stent structure extending along a length from a proximal end to a distal end and having a repeating circumferential cell structure along the length comprising rings, wherein the stent structure is embedded within a graft, and wherein the stent structure comprises:
- a first segment extending from the proximal end and configured to be anchored in the first vessel, wherein the first vessel comprises an artery, wherein the first segment is configured to receive blood flow through the proximal end, and wherein the first segment comprises a window configured to allow a first portion of the blood flow into the first segment to flow through the window and out of the first segment distally into the first vessel to maintain blood flow in the first vessel;
- a second segment extending from the distal end and configured to be positioned in the second vessel, wherein the second vessel comprises a vein, and wherein the second segment is configured to receive a second portion of the blood flow from the first segment and route the second portion of the blood flow through the second segment and out of the distal end distally into the second vessel;
- and
- a third segment positioned between the first segment and the second segment, wherein, with the stent structure in an unconstrained expanded state—
- the first segment has a first diameter adjacent the third segment,
- the second segment has a second diameter adjacent the third segment larger than the first diameter, and
- the third segment has a third diameter that tapers from the first diameter to the second diameter.
A device for diverting blood flow from a first vessel to a second vessel while maintaining blood flow in the first vessel, the device comprising:
- a stent structure extending along a length from a proximal end to a distal end and having a repeating circumferential cell structure along the length, wherein the stent structure is embedded within a graft, and wherein the stent structure comprises:
- a first segment extending from the proximal end and configured to be anchored in the first vessel, wherein the first vessel comprises an artery, wherein the first segment is configured to receive blood flow through the proximal end, and wherein the first segment comprises a window configured to allow a first portion of the blood flow into the first segment to flow through the window and out of the first segment distally into the first vessel to maintain blood flow in the first vessel;
- a second segment comprising a second portion of the stent structure and extending from the distal end and configured to be positioned in the second vessel, wherein the second vessel comprises a vein, and wherein the second segment is configured to receive a second portion of the blood flow from the first segment and route the second portion of the blood flow through the second segment and out of the distal end distally into the second vessel;
- and
- a third segment positioned between the first segment and the second segment, wherein, with the stent structure in an unconstrained expanded state—
- the first segment has a first diameter adjacent the third segment,
- the second segment has a second diameter adjacent the third segment larger than the first diameter, and
- the third segment has a third diameter that tapers from the first diameter to the second diameter.
A device for diverting blood flow from a first vessel to a second vessel while maintaining blood flow in the first vessel, the device comprising:
- a stent structure extending along a length from a proximal end to a distal end, the stent structure embedded within a graft, and wherein the stent structure comprises:
- a first segment extending from the proximal end and configured to be anchored in the first vessel, the first segment configured to allow a first portion of blood flow into the first segment to flow out of the first segment distally into the first vessel to maintain blood flow in the first vessel;
- a second segment extending from the distal end and configured to be positioned in the second vessel, wherein the second segment is configured to receive a second portion of the blood flow from the first segment and route the second portion of the blood flow, through the second segment and out of the distal end distally into the second vessel;
- and
- a third segment positioned between the first segment and the second segment, wherein, with the stent structure in an unconstrained expanded state—
- the first segment has a first diameter adjacent the third segment,
- the second segment has a second diameter adjacent the third segment larger than the first diameter, and
- the third segment has a third diameter that tapers from the first diameter to the second diameter.
Dependencies are inferred from the claim text.