公开(公告)号：US20220183896A1

公开(公告)日：2022-06-16

申请号：US17603262

申请日：2020-03-16

Applicant: KCI Licensing, Inc.

Inventor： Jonathan G. REHBEIN ,  Luke PERKINS ,  Larry Tab RANDOLPH ,  David Richard MERCER ,  Richard Marvin KAZALA, Jr. ,  Christopher J. CARROLL

IPC: A61F13/02 ,  A61M1/00

Abstract: In some examples, a dressing suitable for treating a tissue site may include a fluid management assembly including a fluid restraint configured to reduce a fluid capacity of the fluid management assembly proximate to the fluid restraint. Other features may be associated with the dressing including, by way of example and without limitation, abase layer, an adhesive, one or more wicking layers, and an absorbent layer. Other dressings, apparatus, systems, and methods are disclosed.

公开(公告)号：US20220176606A1

公开(公告)日：2022-06-09

申请号：US17435891

申请日：2020-03-11

Applicant: KCI LICENSING, INC.

Inventor： Christopher Brian LOCKE ,  Timothy Mark ROBINSON

IPC: B29C48/00 ,  A61F13/02 ,  B29C48/07 ,  B29C48/35 ,  C09J9/00

Abstract: This disclosure describes devices, systems, and methods related to a compound film. An exemplary compound film includes a first layer including a first polymer composition including polyurethane and a second layer including a second polymer composition removably coupled to the first layer. The compound film further includes light switchable adhesive coupled to the second layer and configured to transition from a first state to a second state, the light switchable adhesive has a first peel strength in the first state that is greater than a second peel strength of the light switchable adhesive in the second state. A third peel strength between the first layer and the second layer is less than the second peel strength between the light switchable adhesive in the first state and a bond site.

公开(公告)号：US20220176032A1

公开(公告)日：2022-06-09

申请号：US17599229

申请日：2020-03-26

Applicant: KCI Licensing, Inc.

Inventor： Larry Tab RANDOLPH ,  Sara CINNAMON ,  Stefan FOULSTONE ,  Charles HARTZELL ,  Stephanie HENZE ,  Robert LANE ,  Colton SANFORD

IPC: A61M1/00 ,  A61F13/02 ,  A61M39/06

Abstract: A dressing for treating a tissue site with negative pressure including a tissue interface, a cover, a chamber wall, and a base. The cover may be adapted to be sealed to epidermis proximate the tissue site. The chamber wall may define a pump chamber, wherein the pump chamber may be adapted to be fluidly coupled to the tissue interface. The base may extend from the chamber wall, wherein the base may be fluidly sealed to the cover. The dressing may include an intake valve and an exhaust valve fluidly coupled to the pump chamber. The pump chamber may be compressed to evacuate fluid from the pump chamber through the exhaust valve. The pump chamber may then be expanded to draw′ fluid through the intake valve from the tissue interface. This supplies a negative pressure to the tissue interface which may be adapted to distribute negative pressure across the tissue site.

公开(公告)号：US20220168495A1

公开(公告)日：2022-06-02

申请号：US17440008

申请日：2020-03-24

Applicant: KCI LICENSING, INC.

Inventor： Christopher Brian LOCKE

IPC: A61M1/00 ,  A41D1/00

Abstract: A garment includes a cover, a pump coupled to the cover, and a control system operably coupled to the pump. The cover is configured to surround a limb or a joint and to prevent air from entering or leaving an enclosed region between the limb or the joint. The pump is configured to remove air from the enclosed region. The control system is configured to control the pump and to regulate a negative pressure within the enclosed region. In some embodiments, the control system is configured to regulate a negative pressure of the enclosed region based on mobility data from a sensor.

公开(公告)号：US20220163021A1

公开(公告)日：2022-05-26

申请号：US17599097

申请日：2020-03-26

Applicant: KCI Licensing, Inc.

Inventor： Larry Tab RANDOLPH ,  Sara CINNAMON ,  Robert LANE

IPC: F04B9/04 ,  F04B45/027 ,  F16H1/16 ,  A61M1/00

Abstract: An apparatus for treating a tissue site with negative pressure having a pump and a pump actuator. The pump may include a chamber wall that may define a pump chamber. The pump actuator may include a mechanism to actuate the pump. The pump actuator may be releasably coupled to the pump. In some examples, the chamber wall may include a drive surface and the pump actuator may include a cylindrical cam having a working surface configured to engage with the drive surface of the pump. In some examples, the pump actuator may have an actuator arm configured to couple to the pump to actuate the pump. Actuation of the pump may create a negative pressure in the pump chamber that may be delivered to a tissue site.

公开(公告)号：US11318244B2

公开(公告)日：2022-05-03

申请号：US16758275

申请日：2018-10-23

Applicant: KCI LICENSING, INC.

Inventor： Benjamin A. Pratt ,  James K. Seddon ,  Christopher B. Locke

IPC: A61M1/00

Abstract: A negative pressure wound therapy (NPWT) device includes a canister, a pump, a filter, and a control unit. The canister is configured to collect wound exudate from a wound site. The pump is fluidly coupled to the canister and configured to draw a vacuum within the canister by pumping air out of the canister. The filter is positioned between the canister and the pump such that the air pumped out of the canister passes through the filter in a first direction. The control unit is configured to operate the pump and to purge the filter by causing airflow through the filter in a second direction, opposite the first direction.

公开(公告)号：US11305046B2

公开(公告)日：2022-04-19

申请号：US15874126

申请日：2018-01-18

Applicant: KCI Licensing, Inc.

Inventor： Richard Daniel John Coulthard ,  Kevin W. Bendele ,  James A. Luckemeyer ,  Christopher Brian Locke

IPC: A61M5/00 ,  A61M1/00 ,  A61M5/32 ,  A61M25/00 ,  A61M35/00 ,  A61F13/00 ,  A61F7/00

Abstract: Systems and methods for purging a negative pressure wound therapy system.

公开(公告)号：US11291587B2

公开(公告)日：2022-04-05

申请号：US15895851

申请日：2018-02-13

Applicant: KCI Licensing, Inc.

Inventor： Deepak V. Kilpadi

IPC: A61M1/00 ,  A61F13/00 ,  A61F13/02 ,  A61F13/512 ,  A61F13/514 ,  A61M27/00 ,  A61F13/511

Abstract: A manifold for treating a tissue site may include a first side and a second side opposite the first side. The second side of the manifold may be configured to face the tissue site, and to contract a greater amount than the first side of the manifold when exposed to a compressive force. In some illustrative examples, the manifold may be configured to distribute reduced pressure to the tissue site, and to contract when exposed to the reduced pressure. The manifold may be suitable for use with dressing assemblies, treatment systems, and methods for treating a tissue site.

公开(公告)号：US20220096731A1

公开(公告)日：2022-03-31

申请号：US17422325

申请日：2020-01-16

Applicant: KCI LICENSING, INC.

Inventor： James SEDDON ,  Benjamin A. PRATT

IPC: A61M1/00

Abstract: One implementation of the present disclosure is a negative pressure wound therapy (NPWT) device. The NPWT device is configured to perform NPWT and includes a battery configured to supply the NPWT device with power, a pump configured to receive power from the battery and to produce a vacuum at a setpoint pressure to perform the NPWT, a user interface configured to provide alerts to a user, and a controller configured to receive power from the battery and to adjust the setpoint pressure of the pump. The controller is configured to operate the NPWT device in a standard therapy mode, a seal assist therapy mode, a pressure optimization mode, and a preservation mode of operation.

公开(公告)号：US20220088288A1

公开(公告)日：2022-03-24

申请号：US17297960

申请日：2019-11-15

Applicant: KCI Licensing, Inc.

Inventor： Justin Alexander LONG ,  Christopher Brian LOCKE

IPC: A61M1/00 ,  F04B43/04

Abstract: A system for negative-pressure therapy is described. The system includes a dressing configured to be positioned adjacent a tissue site and a piezoelectric pump having at least one inlet and at least one outlet. An adapter is coupled to the piezoelectric pump and configured to be fluidly coupled to the dressing. The adapter is configured to aggregate fluid flow into the at least one inlet. The adapter can have a block. A first recess depends into the block, and a second recess depends into the block from the first recess, the second recess having an area less than the area of the first recess. A bore depends through the block from the second recess to the first side, and a conduit is coupled to the first side and fluidly coupled to the bore.