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US 10,441,291 B2Granted
Devices and methods for treating acute kidney injury
AssigneeRenalPro Medical, Inc.
InventorsCharles Char-Lin Koo, Tsung-Chun Lee, Wen-Pin Shih
Life of this patent
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Abstract
A catheter devices/systems and methods therefrom are described herein for treating acute kidney injury, especially the contrast-induced acute kidney injury wherein the devices may prevent the contrast dyes from entering into kidney and/or facilitate blood flow of kidney by said catheter system.
Claims19
A device for preventing acute kidney injury from contrast agent introduced into vasculature of a subject, the device comprising:
- a catheter shaft comprising proximal portion and a distal portion;
- an occlusive element disposed on the proximal portion;
- and
- at least one longitudinal position indication feature on the occlusive element,
- wherein the occlusive element has an expanded configuration in which, when advanced into an abdominal aorta and positioned adjacent renal artery ostia of the subject, is sized to occlude the renal artery ostia while allowing blood flow over the catheter shaft, and
- wherein the distal portion is configured to remain outside a body of the subject when the proximal portion is positioned adjacent renal artery ostia of the subject,
- wherein the occlusive element comprises a first expandable member disposed on a first lateral side of the proximal portion and a second expandable member disposed on a second lateral side of the proximal portion, the first and second expandable members being disposed in parallel about the catheter shaft, and
- wherein the first and second expandable members have an expanded configuration in which, when advanced into an abdominal aorta and positioned adjacent renal artery ostia of the subject, are sized to occlude the renal artery ostia while allowing blood flow over the catheter shaft.
5 more elements
Dependencies are inferred from the claim text.