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US 12,588,909 B2Granted
Transcatheter device and minimally invasive method for constricting and adjusting blood flow through a blood vessel
AssigneeVivonics, Inc.
InventorsJames H. Goldie, Brendan LaBrecque, Anna M Galea, Eric Klem, Thomas Doyle, Ian Cohen, Tim Robinson, Dana Janssen, George Nicholson
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Abstract
A pulmonary artery flow restrictor system includes a funnel shaped membrane with a proximal base, a restrictive distal opening which is stretchable to larger sizes, an internal strut structure, and an external stent structure.
Claims1
A method of treating congenital heart disease in infants, the method comprising:
- using a transcatheter device to deploy a collapsed funnel shaped membrane, an internal strut structure, and an external stent structure to the pulmonary artery of an infant or child;
- expanding the funnel shaped membrane, the internal strut structure, and the external stent structure in the pulmonary artery so the membrane forces blood in the pulmonary artery to flow out a narrower area distal opening resisting blood flow through the pulmonary artery to lower the blood flow rate therein;
- and
- as the infant grows, using a balloon catheter to expand the narrower area distal opening to increase the blood flow rate through the funnel shaped membrane.
1 more element
Dependencies are inferred from the claim text.