Patents
US 12642903 B2: Adjustment of target interface position in a centrifuge based on lipid concentration
- Granted
- 2026-06-02
- Filed
- 2023-01-09 application 18151597
- Type
- Utility · 8 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Systems and methods are provided for improving efficiency and quality of plasma being removed from a blood separation chamber. The system includes a separation chamber in which plasma is separated from cellular blood components, a pump for moving the plasma and an outlet line for removing the separated plasma from the blood separation chamber. An optical sensor assembly is configured to monitor the blood separation chamber and measure an interface position between the separated component and the plasma, and to generate an output indicative of the measured interface position. A controller is programmed to utilize a lipid concentration input of the blood and to set an original lipemia offset, a lipemia threshold and lipemia final setpoint from a predetermined database, and to use a proportional-integral-derivative control loop to assess the actual interface position plus the lipemia threshold to adjust and achieve a final lipemia setpoint for use during separation procedures.
Source: PTBLXML, file of 2026-06-02 (ipgb20260602.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Fenwal, Inc. 423 patents | US company or organization | Lake Zurich, IL | PTBLXML, file of 2026-06-02 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Benjamin E. Kusters | Pleasant Prairie, WI | 65 | PTBLXML, file of 2026-06-02 |
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 | A61M1/3693 | PTBLXML, file of 2026-06-02 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2023-06-26 | Assignment Assignment of assignor's interest | KUSTERS, BENJAMIN E. signed 2023-04-19 | FENWAL, INC. LAKE ZURICH, IL | 64058/370 | PASDL, file of 2026-10-15 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
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.