Absolute blood volume estimation device and method

US12262978B2 · kind B2 · utility

Assignees

• University of Massachusetts · US
• Analiza, Inc. · US
• Medical University of Graz · AT

Inventors

• Yossi Chait · Longmeadow, US
• Joseph Horowitz · Lawrence, US
• Christopher V. Hollot · Nantasket Beach, US
• Hamed Samandari · Mason, US
• Michael J. Germain · Hampden, US
• Daniel Schneditz · Graz, AT

Key dates

• Filing date: Dec 29, 2023
• Grant date: Apr 1, 2025
• Expiry date: Dec 29, 2043

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2230/207
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Absolute blood volume in dialysis patients is a useful patient attribute to know for dialysis treatment, diagnosis, adjustments, etc. In some cases, it is difficult or impossible to directly determine absolute blood volume. Estimating absolute blood volume may be used to overcome the inability to directly determine the absolute blood volume. Estimating absolute blood volume may include obtaining a series of measurements of hemoconcentration of a patient over a time period, and estimating parameters for a physiological model based on the series of measurements. The absolute blood volume of the patient may be determined using the physiological model.