Patents
US 12754059 B2: Dynamic calibration and correction of stroke volume of a pump
- Granted
- 2026-10-06
- Filed
- 2024-07-02 application 18761387
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Systems and methods are provided for dynamic calibration and correction of the stroke volume of a pump. During a fluid processing procedure, the change in volume of a fluid in a container associated with a volume measurement system is calculated for a plurality of time periods. The standard deviation of the plurality of changes in volume is calculated, with it being determined that the volume measurement system is operating correctly when the standard deviation is below a target threshold. Upon determining that the volume measurement system is operating correctly, the stroke volume of the pump is calculated and a target change in volume of the fluid in the container is compared to an actual change in volume. When there is a difference between the two changes in volume, a correction factor is calculated, with the operation of the pump being adjusted based at least in part on the correction factor.
Source: PTBLXML, file of 2026-10-06 (ipgb20261006.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Fenwal, Inc. 423 patents | US company or organization | Lake Zurich, IL | PTBLXML, file of 2026-10-06 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Francesca S. Quezada | Chicago, IL | PTBLXML, file of 2026-10-06 | ||
| Nicholas R. DiCola | Mundelein, IL | PTBLXML, file of 2026-10-06 | ||
| Jeffrey R. Maher | Lake Barrington, IL | 6 | PTBLXML, file of 2026-10-06 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G01F | Measuring volume, volume flow, mass flow or liquid level; metering by volume | G01F25/0092 | PTBLXML, file of 2026-10-06 |
| F04B | Positive-displacement machines for liquids; pumps | F04B49/065 | PTBLXML, file of 2026-10-06 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
No recorded assignments or security interests on file for this patent.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.