Blood flow reversal valves and related systems and methods

US12017036B2 · kind B2 · utility

Assignees

• Fresenius Medical Care Holdings, Inc. · US
• Fresenius Medical Care Deutschland GmbH · DE

Inventors

• Christian Schlaeper · Pfaffenwiesbach, DE
• Harald Peter · Schweinfurt, DE
• Martin Joseph Crnkovich · Walnut Creek, US

Key dates

• Filing date: Jan 24, 2020
• Grant date: Jun 25, 2024
• Expiry date: Apr 28, 2043

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2039/226
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

This disclosure relates to blood flow reversal valves and related systems and methods. In certain aspects of the invention, a blood flow reversal valve includes a first member having a first passage and a second passage, and a second member having a first passage and a second passage. The first and second members are rotatably fixed relative to one another such that the first passage of the first member is aligned with the first passage of the second member and the second passage of the first member is aligned with the second passage of the second member. A flow directing element is disposed in the cavity and is moveable relative to the first and second members between a first position in which the first passage of the first member and the first passage of the second member are fluidly connected and a second position in which the first passage of the first member and the second passage of the second member are fluidly connected.