Aortic flow meter and pump for partial-aortic occlusion

US12318090B2 · kind B2 · utility

Assignees

• The Regents of the University of California · US
• Government of the United States, as represented by the Secretary of the Air Force · US

Inventors

• Michael Austin Johnson · Holladay, US
• Timothy K. Williams · Davis, US
• Lucas Paul Neff · Davis, US

Key dates

• Filing date: Jan 26, 2023
• Grant date: Jun 3, 2025
• Expiry date: Aug 11, 2043

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2230/50
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Systems and methods for partial aortic occlusion are provided. The system may include a catheter having an expandable aortic blood flow regulation device disposed on the distal end of the catheter for placement within an aorta of a patient, and a catheter controller unit that causes the device to expand and contract to restrict blood flow through the aorta. The system also may include sensors for measuring blood pressure distal and proximal to the expandable device. The system further may include non-transitory computer readable media having instructions stored thereon, wherein the instructions, when executed by a processor coupled to the sensors, cause the processor to estimate aortic blood flow based on the measured blood pressures and corresponding waveforms, compare the estimated aortic blood flow with a target aortic blood flow range, generate an alert if the estimated aortic blood flow falls outside the target aortic blood flow range, and cause the catheter controller unit to adjust expansion and contraction of the expandable device to adjust an amount of blood flow through the aorta if the estimated aortic blood flow falls outside the target aortic blood flow range.