US 12,318,528 B2
Variable orifice fistula graft
Sean McDermott, Weymouth, MA (US)
Assigned to MOZARC MEDICAL US LLC, Minneapolis, MN (US)
Filed by MOZARC MEDICAL US LLC, Minneapolis, MN (US)
Filed on Aug. 27, 2021, as Appl. No. 17/458,696.
Claims priority of provisional application 63/107,547, filed on Oct. 30, 2020.
Prior Publication US 2022/0133974 A1, May 5, 2022
Int. Cl. A61M 1/36 (2006.01); A61L 31/04 (2006.01); A61L 31/14 (2006.01)
CPC A61M 1/3655 (2013.01) [A61L 31/041 (2013.01); A61L 31/148 (2013.01); A61M 1/3661 (2014.02); A61M 2205/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A medical implant for controlling blood flow, the medical implant comprising:
a primary tubular member having a first end and a second end and defining a primary longitudinal axis and a primary lumen, the primary tubular member disposed in an arterial-venous connection;
a disk-like shaped baffle coupled to an interior surface of the tubular member, the baffle disposed transversely to the primary longitudinal axis within the primary lumen, the baffle defining a plurality of apertures therethrough, wherein the baffle is an electromechanical device configured to adjust at least one dimension of the plurality of apertures; and
an adjustable diaphragm having a plurality of blades, which are radially rotatable to adjust a size of the plurality of apertures, wherein the plurality of blades are actuated by one or more actuators by an electromagnet activating permanent magnets coupled to each of the blades.