The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 2026
Filed:
Dec. 28, 2020
Children's National Medical Center, Washington, DC (US);
Pranava Sinha, Arlington, VA (US);
William A. Smith, Lyndhurst, OH (US);
Stephan Weber, Lyndhurst, OH (US);
Children's National Medical Center, Washington, DC (US);
Abstract
The circulation assist devices disclosed herein can be used, for example, in methods of decreasing venous pressure in the Fontan circulation. The devices can include an inlet, an outlet, a stator, a rotor, and an impeller driven by rotation of the rotor. In some embodiments, the impeller blade (or blades) can at least partially define a central lumen extending through the device. The device can be coupled to the inferior vena cava and the pulmonary artery. Rotating the impeller blade(s) increases blood velocity through the lumen and causes the outlet pressure to be higher than the inlet pressure. The impeller can be configured such that, when it is stationary, the forward static pressure drop between the inlet and the outlet is minimized. That is, the forward static pressure drop of the device approximates the pressure drop between the inferior vena cava and central pulmonary artery of the unassisted Fontan circulation.