公开(公告)号：US20190192749A1

公开(公告)日：2019-06-27

申请号：US16206560

申请日：2018-11-30

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian LOCKE ,  Timothy Mark ROBINSON ,  Amy K. MCNULTY

IPC: A61M1/00

CPC classification number: A61M1/0088 ,  A61M1/0031 ,  A61M1/3687 ,  A61M27/00 ,  Y10T137/0402

Abstract: A reduced-pressure treatment system for debriding a treatment area of a tissue site and applying reduced pressure is disclosed. The reduced-pressure treatment system includes a hydrogel having a blocked acid debriding agent. The hydrogel is adapted to cover the treatment area and enhance autolytic debridement at the treatment area. The reduced-pressure treatment system includes a manifold that is adapted to cover the hydrogel and distribute reduced pressure to the tissue site. The reduce-pressure treatment system also includes a sealing drape for forming a fluid seal over the tissue site and manifold. Other systems, methods, and dressings are presented.

公开(公告)号：US20190160196A1

公开(公告)日：2019-05-30

申请号：US16263178

申请日：2019-01-31

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian LOCKE ,  Brian ANDREWS ,  Timothy Mark ROBINSON

IPC: A61L15/18 ,  A61F13/00 ,  A61L15/42 ,  A61L15/22 ,  A61M1/00 ,  A61L15/28 ,  A61L15/24 ,  A61L15/60 ,  A61L15/44 ,  A61L15/26 ,  G05B19/418 ,  A61F13/02

Abstract: Systems, methods, and apparatuses for increasing liquid absorption are described. Some embodiments may include a dressing having an absorbent layer containing super-absorbent material as well as ionic-exchange media (IEM). In some embodiments, the absorbent layer may include absorbent fibers. The absorbent fibers may each include a super-absorbent core surrounded by a water-permeable layer onto which ionic-exchange media (IEM) may be grafted. As liquid comes into contact with the IEM, its ionic nature may be reduced, therefore protecting the absorbent qualities of the super-absorbent material.

公开(公告)号：US20190053954A1

公开(公告)日：2019-02-21

申请号：US16169773

申请日：2018-10-24

Applicant: KCI Licensing, Inc.

Inventor： Aidan Marcus TOUT ,  Richard Daniel John COULTHARD ,  Christopher Brian LOCKE ,  Timothy Mark ROBINSON

IPC: A61F13/00 ,  A61M1/00

Abstract: Systems, methods, and dressing are presented for treating a tunnel wound on a patient. In one instance, a reduced-pressure, tunnel-wound dressing includes a longitudinal core member formed from a closed-cell foam that is surrounded by a first longitudinal concentric member formed from a manifolding material. When subjected to reduced pressure, the longitudinal core member expands and the first longitudinal concentric member compresses. These actions create intimate contact between the tunnel wound and the dressing, oppose collapse of the tunnel, and when reduced pressure is removed provide clearance to remove the dressing. Other embodiments are presented.

公开(公告)号：US20190022290A1

公开(公告)日：2019-01-24

申请号：US16142727

申请日：2018-09-26

Applicant: KCI Licensing, Inc.

Inventor： Tyler H. SIMMONS ,  Colin John HALL ,  Timothy Mark ROBINSON ,  Richard Marvin KAZALA, JR.

IPC: A61M1/00 ,  A61F13/02 ,  A61F13/00 ,  A61M27/00

Abstract: Provided are systems, dressings, and methods suitable for treating a tissue site, such as an incision or linear wound. The systems, dressings, and methods relate to a dressing assembly that may include a dressing bolster and a sealing ring. The sealing ring may be adapted to provide a fluid seal around the tissue site, and to absorb fluids from the tissue site. In some embodiments, the sealing ring may be extruded around the tissue site. In other embodiments, the sealing ring may be coupled to the dressing bolster. Other systems, apparatuses, and methods are disclosed.

公开(公告)号：US20190009010A1

公开(公告)日：2019-01-10

申请号：US16052408

申请日：2018-08-01

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian LOCKE ,  Richard Daniel John COULTHARD ,  Timothy Mark ROBINSON

IPC: A61M1/00

Abstract: A system is illustratively described herein that generally comprises a vacuum chamber, an ambient pressure chamber, a valve configured for unidirectional flow from the vacuum chamber to the ambient pressure chamber during a charging stroke, and a liquid filter configured to retain liquid in the pump. In some embodiments, the liquid filter is configured to retain liquid in the vacuum chamber during the charging stroke. In other embodiments, it may be configured to retain liquid in the ambient pressure chamber during an operating stroke. In more particular embodiments, a piston may be disposed between the vacuum chamber and the ambient pressure chamber, a passage may fluidly couple the vacuum chamber and the ambient pressure chamber, and the valve can be configured to control fluid flow through the passage. Additionally, a lumen may couple the vacuum chamber to a dressing to deliver negative pressure to the dressing in some illustrative embodiments.

公开(公告)号：US20180353344A1

公开(公告)日：2018-12-13

申请号：US16000284

申请日：2018-06-05

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian LOCKE ,  Timothy Mark ROBINSON

IPC: A61F13/02 ,  B29C69/00

CPC classification number: A61F13/0283 ,  A61F13/00068 ,  A61F13/00987 ,  A61F13/00995 ,  A61F13/0216 ,  A61M1/0037 ,  A61M1/0058 ,  A61M1/0084 ,  A61M1/0088 ,  A61M2205/3317 ,  A61M2205/3331 ,  A61M2207/00 ,  B29C69/001 ,  B29L2031/753

Abstract: A dressing for treating tissue with negative pressure is provided herein comprising a composite of dressing layers, including a release film, a perforated coated polymer film, a manifold, and an adhesive cover. Additionally, a method of manufacturing the dressing may comprise applying a cross-linkable polymer to a polymer film, curing the cross-linkable polymer to a gel layer to form a coated polymer film, and perforating the coated polymer film to form fluid restrictions, such as slits and/or slots, though the coated polymer film.

公开(公告)号：US20180353338A1

公开(公告)日：2018-12-13

申请号：US15997818

申请日：2018-06-05

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian LOCKE ,  Timothy Mark ROBINSON

IPC: A61F13/02 ,  A61M1/00

CPC classification number: A61F13/0216 ,  A61F13/0206 ,  A61F13/0213 ,  A61F13/0223 ,  A61M1/0088

Abstract: A dressing may include a cover including a non-porous film, a manifold adhered to the non-porous film, a tissue interface including a hydrophobic film adhered to the manifold, and a plurality of fluid restrictions in the hydrophobic film adjacent to the manifold. The cover, the manifold, and the tissue interface each have an exposed perimeter. The dressing may also include an attachment device configured to seal the exposed perimeter of each of the cover, the manifold, and the tissue interface.

公开(公告)号：US20180280203A1

公开(公告)日：2018-10-04

申请号：US15996820

申请日：2018-06-04

Applicant: KCI Licensing, Inc.

Inventor： Rosella KENDRICK ,  Colin John HALL ,  Elliott James RIDER ,  Timothy Mark ROBINSON ,  Benjamin STOKES

IPC: A61F13/02 ,  A61L15/46 ,  A61L15/44 ,  A61L15/26 ,  A61L15/18 ,  C08L75/04 ,  C08L83/04

Abstract: Systems, methods, and devices are presented for treating a tissue site and managing hair proximate the tissue site. A composition is provided for inhibiting, removing, or weakening hair proximate the tissue site and for providing an improved fluid seal by a flexible film drape over the tissue site. In some example embodiments, a hair-modification agent is disposed at least proximate a peripheral edge of a treatment manifold between a drape and epidermis proximate a tissue site. The hair-modification agent can be configured to flow over imperfections on the epidermis and to form a fluid seal against the epidermis, and can further be configured to at least substantially weaken hair on the epidermis as the hair encounters the hair-modification agent.

公开(公告)号：US20180214314A1

公开(公告)日：2018-08-02

申请号：US15873281

申请日：2018-01-17

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian LOCKE ,  Timothy Mark ROBINSON

IPC: A61F13/00 ,  A61M1/00

CPC classification number: A61F13/00068 ,  A61F2013/00412 ,  A61M1/0088 ,  Y10T29/49826

Abstract: Systems, methods, and dressings for treating a linear wound, such as an incision, on a patient are presented. The systems, dressings, and methods involve a sealed wound dressing assembly that helps form a fluid seal around the linear wound while simultaneously encompassing a subcutaneous delivery conduit to deliver fluid to or from a subcutaneous tissue site. In one instance, a reduced-pressure interface is used to allow the subcutaneous delivery conduit to pass through tissue at or near the linear wound and through a wound dressing assembly to a drainage receptacle.

公开(公告)号：US20180214313A1

公开(公告)日：2018-08-02

申请号：US15755498

申请日：2016-08-17

Applicant: KCI Licensing, Inc.

Inventor： BENJAMIN ANDREW PRATT ,  Christopher Brian LOCKE ,  Timothy Mark ROBINSON

IPC: A61F13/00 ,  A61F13/02

CPC classification number: A61F13/00068 ,  A61F13/00029 ,  A61F13/0216

Abstract: In some embodiments, a dressing assembly may include a dressing bolster, an interface seal, and a base layer. The dressing bolster may include a first side, a second side, and a periphery. The interface seal may be coupled at the periphery of the dressing bolster. The base layer may include a base layer flange configured to be coupled to the dressing and to extend beyond the periphery of the dressing bolster. The dressing assembly may be suitable for treating a tissue site with reduced pressure and for creating an apposition force between a first portion of the tissue site and a second portion of the tissue site. Other systems, apparatus, and methods are disclosed.