Patents
US 12708702 B2: Membrane separation devices, systems and methods employing same, and data management systems and methods
- Granted
- 2026-08-18
- Filed
- 2018-07-02 application 16025432
- Type
- Utility · 12 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A membrane separation device is disclosed along with systems and methods employing the device in blood processing procedures. In one embodiment, a spinning membrane separator is provided in which at least two zones or regions are created in the gap between the membrane and the shell, such that mixing of the fluid between the two regions is inhibited by a radial rib associated with the membrane that decreases the gap between the membrane and the shell to define two fluid regions, the ridge isolating the fluid in the two regions to minimize mixing between the two. Automated systems and methods are disclosed for separating a unit of previously collected whole blood into components, such as concentrated red cells and plasma, for collecting red cells and plasma directly from a donor in a single pass, and for cell washing. Data management systems and methods and priming methods are also disclosed.
Source: PTBLXML, file of 2026-08-18 (ipgb20260818.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Fenwal, Inc. 423 patents | US company or organization | Lake Zurich, IL | PTBLXML, file of 2026-08-18 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Benjamin E. Kusters | Racine, WI | 65 | PTBLXML, file of 2026-08-18 | |
| Christopher J. Wegener | Libertyville, IL | 68 | PTBLXML, file of 2026-08-18 | |
| Daniel R. Boggs | Libertyville, IL | 32 | PTBLXML, file of 2026-08-18 | |
| Kyungyoon Min | Kildeer, IL | 142 | PTBLXML, file of 2026-08-18 | |
| William H. Cork | Lake Bluff, IL | 34 | PTBLXML, file of 2026-08-18 | |
| Daryl R. Calhoun | Gurnee, IL | 13 | PTBLXML, file of 2026-08-18 | |
| Bryan Blickhan | Libertyville, IL | 13 | PTBLXML, file of 2026-08-18 | |
| Daniel Lynn | Spring Grove, IL | 29 | PTBLXML, file of 2026-08-18 |
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 | A61M1/34 | PTBLXML, file of 2026-08-18 |
| B01D | Separation | B01D61/18 | PTBLXML, file of 2026-08-18 |
| G16H | Healthcare informatics, i.e. information and communication technology [ict] specially adapted for the handling or processing of medical or healthcare data | G16H10/40 | PTBLXML, file of 2026-08-18 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2018-07-02 | Assignment Assignment of assignor's interest | KUSTERS, BENJAMIN E. signed 2012-03-16 WEGENER, CHRISTOPHER J. signed 2012-03-16 BOGGS, DANIEL R. signed 2012-03-16 MIN, KYUNGYOON signed 2012-03-13 CORK, WILLIAM H. signed 2012-03-19 CALHOUN, DARYL R. signed 2012-03-15 BLICKHAN, BRYAN signed 2012-03-15 LYNN, DANIEL signed 2012-03-15 | FENWAL, INC. LAKE ZURICH, IL | 46253/643 | PASDL, file of 2026-08-13 |
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.