Patents
US 12533456 B2: Systems and methods for processing whole blood into red blood cell, plasma, and platelet products
- Granted
- 2026-01-27
- Filed
- 2022-06-24 application 17848821
- Type
- Utility · 22 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A processing device includes a pump system, a valve system, a centrifuge, and a controller. A fluid flow circuit is mounted to the device to execute a procedure in which whole blood is processed into a red blood cell product, a plasma product, and a platelet concentrate product. The blood is first separated into red blood cells, buffy coat, and plasma using the centrifuge, with the red blood cells and plasma being removed from the centrifuge, while the buffy coat remains in the centrifuge. The fluid remaining in the centrifuge is circulated through the centrifuge to form a homogenous mixture. Once the mixture is formed, it is separated in the centrifuge into platelet concentrate and red blood cells. A platelet product is then collected by using whole blood or previously collected red blood cells to push the platelet concentrate from the centrifuge to a collection container.
Source: PTBLXML, file of 2026-01-27 (ipgb20260127.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Fenwal, Inc. 423 patents | US company or organization | Lake Zurich, IL | PTBLXML, file of 2026-01-27 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Benjamin E. Kusters | Pleasant Prairie, WI | 65 | PTBLXML, file of 2026-01-27 | |
| Richard I. Brown | Northbrook, IL | 18 | PTBLXML, file of 2026-01-27 | |
| Kyungyoon Min | Kildeer, IL | 142 | PTBLXML, file of 2026-01-27 |
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 2026-01-27 |
| B01D | Separation | B01D36/045 | PTBLXML, file of 2026-01-27 |
| B04B | Centrifuges | B04B5/0442 | PTBLXML, file of 2026-01-27 |
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.