Patents
US 11826234 B2: Distributed negative pressure wound therapy system incorporating an absorbent dressing and piezo-electric pump
- Granted
- 2023-11-28
- Filed
- 2019-06-14 application 17255095
- Type
- Utility · 13 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A negative pressure wound therapy system includes a wound dressing, at least one pump fluidly coupled to the fluid interface, a pressure sensor fluidly coupled to the wound dressing, a control housing, and an electrical coupler. The wound dressing includes a sealing layer, an absorbent layer adjacent to the sealing layer, and a fluid interface attached to at least one of the sealing layer or the absorbent layer. The at least one pump is configured to apply negative pressure to the fluid interface to draw fluid from the wound dressing via the fluid interface. The pressure sensor is configured to detect a fluid pressure of the wound dressing. The control housing is remote from the wound dressing. The electrical coupler is configured to removably connect the control housing to the at least one pump.
Source: PVGPATDIS, file of 2026-04-10 (ipg231128.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| KCI Licensing, Inc. 911 patents | US company or organization | San Antonio, TX | TX:32096292969 State business registration EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Christopher Brian Locke | Bournemouth, GB | 580 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A61F | Filters implantable into blood vessels; prostheses; devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents; orthopaedic, nursing or contraceptive devices; fomentation; treatment or protection of eyes or ears; bandages, dressings or absorbent pads; first-aid kits | A61F13/05 | PVGPATDIS, file of 2026-04-10 |
| 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 | A61M1/74 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2024-02-01 | Assignment Assignment of assignor's interest | 3M INNOVATIVE PROPERTIES COMPANY signed 2024-02-01 | SOLVENTUM INTELLECTUAL PROPERTIES COMPANY MAPLEWOOD, MN | 66444/162 | PASDL, file of 2026-10-15 |
| 2023-09-13 | Correction Corrective assignment to correct the application listed on schedule of ip rights attached to assignment at lines 55: 71; 89; 116-129; and 131 need to be deleted previously recorded at reel: 064788 frame: 0823. assignor(s) hereby confirms the assignment. | KCI LICENSING, INC. signed 2023-08-30 | 3M INNOVATIVE PROPERTIES COMPANY SAINT PAUL, MN | 64886/479 | PASDL, file of 2026-10-15 |
| 2023-08-31 | Assignment Assignment of assignor's interest | KCI LICENSING, INC. signed 2023-08-30 | 3M INNOVATIVE PROPERTIES COMPANY ST. PAUL, MN | 64788/823 | 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.