Patents
US 12558469 B2: Systems and methods for converting an apheresis fluid processing circuit to single or double needle mode
- Granted
- 2026-02-24
- Filed
- 2022-08-03 application 17880357
- Type
- Utility · 19 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Systems and methods for performing apheresis procedures, including photopheresis. The systems and methods utilize a disposable fluid circuit that can be converted from a double needle configuration to a single needle configuration and from a single needle configuration to a double needle configuration. A controller directs the action of system pumps to clear potentially stagnant blood residing in the fluid circuit, tracks system parameters and status before and after conversion, and verifies that the procedure may proceed in its new configuration.
Source: PTBLXML, file of 2026-02-24 (ipgb20260224.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Fenwal, Inc. 423 patents | US company or organization | Lake Zurich, IL | PTBLXML, file of 2026-02-24 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Angela N. Carlson | Arlington Heights, IL | 5 | PTBLXML, file of 2026-02-24 | |
| Gregory Coultas | Chicago, IL | PTBLXML, file of 2026-02-24 | ||
| Lan T. Nguyen | Vernon Hills, IL | PTBLXML, file of 2026-02-24 | ||
| Kevin Schalte | Crystal Lake, IL | 2 | PTBLXML, file of 2026-02-24 | |
| Grover Burkett | Gilberts, IL | PTBLXML, file of 2026-02-24 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A61M | Devices for introducing media into, or onto, the body ; devices for transducing body media or for taking media from the body ; devices for producing or ending sleep or stupor | A61M1/3401 | PTBLXML, file of 2026-02-24 |
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.