公开(公告)号：US20210001020A1

公开(公告)日：2021-01-07

申请号：US16961983

申请日：2019-03-08

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian LOCKE

IPC: A61M1/00

Abstract: An apparatus for charging a negative-pressure source is described. The apparatus includes a body having a first end, a second end, a suction chamber, and a longitudinal axis. A slider at least partially surrounds the body and is configured to slide relative to the body parallel to the longitudinal axis. A piston is disposed in the suction chamber and slidable relative to the body parallel to the longitudinal axis. The apparatus includes a rod having a first end coupled to the slider and a second end coupled to the piston. The first end and the second end can move parallel to the longitudinal axis in opposite directions. An end cap is coupled to the body. The end cap is configured to locate at least one constant force spring and turn the rod from the first direction to the second direction.

公开(公告)号：US10857290B2

公开(公告)日：2020-12-08

申请号：US15839076

申请日：2017-12-12

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian Locke ,  David George Whyte

IPC: A61M1/00 ,  A61M5/145 ,  A61M5/142 ,  F04B43/04 ,  F04B43/00 ,  F04B45/04 ,  F04B45/047 ,  F04B43/02 ,  F04B35/04

Abstract: Pump cassettes, wound-treatment apparatuses and methods. In some embodiments, a pump cassette comprises: a pump body having a pump chamber, an inlet valve in fluid communication with the pump chamber, and an outlet valve in fluid communication with the pump chamber; a diaphragm coupled to the pump body such that the diaphragm is movable to vary a volume in the pump chamber; and an identifier configured to store one or more properties of the pump cassette such that the identifier is readable by an automated reader to determine the one or more properties. In some embodiments, the pump cassette is configured to be removably coupled to a wound-treatment apparatus having an actuator such that the actuator can be activated to move the diaphragm.

公开(公告)号：US20200376178A1

公开(公告)日：2020-12-03

申请号：US16997521

申请日：2020-08-19

Applicant: KCI Licensing, Inc.

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

IPC: A61M1/00 ,  A61F13/02

Abstract: The illustrative embodiments described herein are directed to an apparatus, system, and method for storing liquid from a tissue site. The apparatus may include a drape having an aperture, and a fluid pouch coupled to the drape such that the fluid pouch is in fluid communication with the aperture. In one embodiment, the fluid pouch is operable to transfer reduced pressure to the aperture such that the liquid from the tissue site is drawn into the fluid pouch. The fluid pouch may have a cavity that stores the liquid that is drawn from the tissue site. In another embodiment, the fluid pouch may include at least one baffle. The fluid pouch may also include a fluid channel at least partially defined by the at least one baffle. The fluid channel may be operable to store liquid from the tissue site when reduced pressure is applied through the fluid channel.

公开(公告)号：US20200375805A1

公开(公告)日：2020-12-03

申请号：US16757343

申请日：2018-10-22

Applicant: KCI Licensing, Inc.

Inventor： Timothy Mark ROBINSON ,  Christopher Brian LOCKE ,  Benjamin Andrew PRATT ,  Larry Tab RANDOLPH ,  Justin Alexander LONG ,  James COURAGE ,  Diwi L. ALLEN ,  Kristine M. KIESWETTER

IPC: A61F13/14 ,  A61L27/18 ,  A61L27/34 ,  A61L27/54 ,  A61M1/00 ,  A61F13/02 ,  A61F13/00 ,  A61L27/16

Abstract: An apparatus for filling a wound can include an array of at least four truncated ellipsoids interconnected to define at least one fluid path through, for example perpendicular to, the array. The longest principal axis of each ellipsoid may be perpendicular to the array. Each truncated ellipsoid may be a spheroid and/or may include an approximately elliptical contact surface at each contact surface between two interconnected ellipsoids. Each fluid pathway may have four continuously-curved concave sides and may have a parallelogram-shaped cross-section with continuously-curved concave edges. A dressing may include the apparatus, a dressing layer coupled to the apparatus, a backing layer disposed over a surface of the dressing layer opposite the apparatus, and an attachment device disposed on at least a margin of the backing layer. Methods of treating various tissue sites using the apparatus or dressing with negative-pressure therapy are also disclosed.

公开(公告)号：US10849792B2

公开(公告)日：2020-12-01

申请号：US15884198

申请日：2018-01-30

Applicant: KCI Licensing, Inc.

Inventor： James A. Luckemeyer ,  Timothy Mark Robinson ,  Christopher Brian Locke

IPC: A61F13/02 ,  A61M1/00 ,  A61F13/00 ,  A61F13/84

Abstract: A conduit for treating a tissue site with reduced pressure may include a primary lumen and at least one secondary lumen. A wall of the conduit may include a first wall material and a second wall material. The first wall material may comprise a substantially non-absorbent material that is vapor impermeable and liquid impermeable. The second wall material may comprise an absorbent material that is vapor permeable and liquid impermeable. The second wall material may be positioned in fluid contact with the at least one secondary lumen. Other systems, apparatus, and methods are disclosed.

公开(公告)号：US10849791B2

公开(公告)日：2020-12-01

申请号：US15234624

申请日：2016-08-11

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian Locke ,  Richard Daniel John Coulthard ,  Timothy Mark Robinson ,  Aidan Marcus Tout

IPC: A61F13/00 ,  A61L15/16 ,  A61L15/00 ,  A61M1/34 ,  A61M1/00 ,  A61L31/06

Abstract: Systems and apparatuses for administering reduced pressure treatment to a tissue site include a reduced pressure source, a drape having a plurality of projections for contacting the tissue site, and an adhesive connected to at least a portion of the drape for sealing the drape to a portion of a patient's intact epidermis.

公开(公告)号：US20200338246A1

公开(公告)日：2020-10-29

申请号：US16924657

申请日：2020-07-09

Applicant: KCI Licensing, Inc.

Inventor： Tyler H. SIMMONS ,  Alexander G. SAMMONS

IPC: A61M1/00 ,  A61F13/00

Abstract: A reduced-pressure abdominal treatment device is presented that has a plurality of liquid-impermeable layers with a foam spacer between two of the liquid-impermeable layers. The plurality of liquid-impermeable layers have a coextensive area A1. The foam spacer has a plan-view area A2. A2 is less than 80% of A1 (i.e., A2

公开(公告)号：US20200338242A1

公开(公告)日：2020-10-29

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：US20200330285A1

公开(公告)日：2020-10-22

申请号：US16757642

申请日：2018-10-23

Applicant: KCI Licensing, Inc.

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

IPC: A61F13/02 ,  A61M1/00 ,  A61F13/06 ,  A61F13/00 ,  A61L15/42

Abstract: A dressing for managing an incision and surrounding tissue where edema and swelling may be present post-operation. The dressing may maximize coverage of area in articulating joints, such as a knee or elbow, while allowing for substantial range of motion. In some embodiments, the dressing may comprise an adhesive border configured to be adhered to skin around an articulating joint, a skin-interfacing fabric for minimizing skin irritation, a foam body for manifolding negative pressure and absorbing exudate and other body fluids, and a thin polymer film cap for sealing the assembly so negative pressure can be maintained throughout the dressing.

公开(公告)号：US10799623B2

公开(公告)日：2020-10-13

申请号：US15870510

申请日：2018-01-12

Applicant: KCI Licensing, Inc.

Inventor： Thomas Paul Lawhorn

IPC: A61M1/00 ,  G08B19/00 ,  G08B31/00

Abstract: A method of distinguishing leak detection and canister disengagement in a reduced pressure treatment system includes monitoring an actual power level and a source pressure of a reduced pressure pump. The actual power level is compared to a target power level, and the source pressure is compared to a first alarm pressure and a second alarm pressure. A leak alarm is indicated when the actual power level is greater than the target power level and the source pressure is greater than the first alarm pressure. A canister disengaged alarm is indicated when the actual power level is greater than the target power level and the source pressure is less than the second alarm pressure.