公开(公告)号：US10016538B2

公开(公告)日：2018-07-10

申请号：US14824845

申请日：2015-08-12

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian Locke ,  Mark Stephen James Beard

IPC: A61M1/00

CPC classification number: A61M1/0031 ,  A61M1/0027 ,  A61M1/0088 ,  A61M2205/15 ,  A61M2205/3344 ,  A61M2205/583

Abstract: The illustrative embodiments described herein are directed to an apparatus and method for managing reduced pressure at a tissue site. The apparatus includes a reduced pressure source that generates reduced pressure. The reduced pressure is delivered to the tissue site via a delivery tube. The apparatus includes a single pressure sensor. The single pressure sensor detects an actual reduced pressure at the tissue site. The apparatus also includes a controller. The controller determines a responsiveness of the actual reduced pressure measured by the single pressure sensor to an increase in reduced pressure generated by the reduced pressure source. The apparatus includes an indicator. The indicator emits a signal when the controller determines that the actual reduced pressure measured by the single pressure sensor is nonresponsive to the increase in reduced pressure generated by the reduced pressure source.

公开(公告)号：US09974694B2

公开(公告)日：2018-05-22

申请号：US14708061

申请日：2015-05-08

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian Locke ,  Timothy Mark Robinson ,  Robert Tuck ,  Gareth Stephenson

IPC: A61F13/00 ,  A61M1/00

CPC classification number: A61F13/00068 ,  A61F13/00017 ,  A61F13/00042 ,  A61M1/0088

Abstract: Systems, apparatuses, and methods for closing an opening through a surface of a tissue site are described. The system includes a sealing member adapted to cover the opening to form a sealed space and a negative-pressure source adapted to be fluidly coupled to the sealed space to provide negative pressure to the sealed space. The system also includes a contracting layer adapted to be positioned adjacent the opening and formed from a material having a firmness factor and a plurality of holes extending through the contracting layer to form a void space. The holes have a perforation shape factor and a strut angle causing the plurality of holes to collapse in a direction substantially perpendicular to the opening. The contracting layer generates a closing force substantially parallel to the surface of the tissue site to close the opening in response to application of the negative pressure.

公开(公告)号：US20180099131A1

公开(公告)日：2018-04-12

申请号：US15839076

申请日：2017-12-12

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian Locke ,  David George Whyte

IPC: A61M35/00 ,  A61M5/142 ,  F04B35/04 ,  A61M1/00 ,  A61M5/145 ,  F04B43/04

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：US09937079B2

公开(公告)日：2018-04-10

申请号：US14080285

申请日：2013-11-14

Applicant: KCI Licensing, Inc.

Inventor： Timothy Mark Robinson ,  Christopher Brian Locke

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

CPC classification number: A61F13/0216 ,  A61F13/00068 ,  A61F13/0233 ,  A61F13/0246 ,  A61F13/0289 ,  A61M1/0088

Abstract: A system for treating a tissue site includes a pressure source to apply reduced pressure, and a manifold in fluid communication with the pressure source to provide reduced pressure to the tissue site. The system includes a drape for adhering to the tissue site to cover the tissue site and the manifold. The drape has a film layer having a thickness less than about 15 microns, and an adhesive coupled to the film layer. The adhesive seals the film layer to the tissue site to create a sealed space having the manifold therein. The adhesive is sufficiently thick to limit leaks between the film layer and the tissue site.

公开(公告)号：US09931448B2

公开(公告)日：2018-04-03

申请号：US14204671

申请日：2014-03-11

Applicant: KCI Licensing, Inc.

Inventor： Benjamin Andrew Pratt ,  Colin John Hall ,  Christopher Brian Locke ,  Elliott James Rider ,  Gareth Stephenson

IPC: A61M1/00 ,  A61M5/178 ,  A61M5/00 ,  A61M5/32 ,  A61M35/00

CPC classification number: A61M1/0094 ,  A61M1/0001 ,  A61M1/0015 ,  A61M1/0052 ,  A61M1/0088 ,  A61M1/0096 ,  A61M2205/21 ,  A61M2205/7536 ,  Y10T29/49826

Abstract: A system and apparatus for treating a tissue site with reduced pressure and collecting fluids from the tissue site is disclosed. The system may include a reduced-pressure source, a pouch in fluid communication with the reduced pressure source, and a dressing in fluid communication with the pouch. The pouch may include a first wall, a second wall having a periphery coupled to the first wall to form an interior, and a third wall extending through the interior to form a first chamber in fluid communication with the dressing and a second chamber in fluid communication with the reduced pressure source. A plurality of filters are positioned in the third wall. The filters permit fluid communication between the first chamber and the second chamber.

公开(公告)号：US09907889B2

公开(公告)日：2018-03-06

申请号：US14156256

申请日：2014-01-15

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian Locke ,  Richard Daniel John Coulthard ,  David George Whyte

IPC: A61M35/00 ,  A61M1/00 ,  A61F13/00 ,  A61B5/00

CPC classification number: A61M1/005 ,  A61M1/0025 ,  A61M1/0039 ,  A61M1/0088 ,  A61M2205/15 ,  A61M2205/183

Abstract: Illustrative embodiments of new and useful systems and methods for reduced-pressure therapy are described. One example embodiment is a manually-actuated pump for applying reduced-pressure therapy. The pump generally comprises a charging chamber, a regulated chamber, and a regulator passage between the charging chamber and the regulated chamber. A valve body controls fluid communication through the regulator passage, and a regulator spring may be engaged with the valve body to bias the valve body against a differential between a pressure in the regulated chamber and an ambient pressure. The regulator passage may have a bore size adapted deflect the valve body to cause an audible indication of a leak.

公开(公告)号：US09878077B2

公开(公告)日：2018-01-30

申请号：US14276853

申请日：2014-05-13

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian Locke ,  Timothy Mark Robinson ,  Aidan Marcus Tout

IPC: A61M1/00 ,  A61F13/00 ,  A61M25/00

CPC classification number: A61M1/0088 ,  A61F13/00068 ,  A61F2013/00174 ,  A61F2013/00536 ,  A61F2013/0054 ,  A61M1/00 ,  A61M1/0025 ,  A61M25/00 ,  A61M2205/3344

Abstract: Systems and methods for a reduced-pressure interface for providing reduced pressure through a sealing member to a distribution manifold includes a housing having a flange portion and a cavity wall portion such that the cavity wall portion forms a cavity having a tissue-facing cavity opening. A conduit port is coupled to the cavity wall and has a conduit aperture, such that the conduit port is adapted to receive a reduced-pressure delivery conduit. An attachment device is coupled to a tissue-facing side of the flange portion of the housing such that the attachment device couples the housing to the sealing member. Additionally, a cutting element is at least temporarily coupled to the housing proximate to the tissue-facing cavity opening such that the cutting element is adapted to form an aperture in the sealing member when the cutting element is driven into the sealing member with a driving force.

公开(公告)号：US09833363B2

公开(公告)日：2017-12-05

申请号：US14104630

申请日：2013-12-12

Applicant: KCI Licensing, Inc.

Inventor： Timothy Mark Robinson ,  Christopher Brian Locke

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

CPC classification number: A61F13/022 ,  A61F13/00068 ,  A61F13/0216 ,  A61F13/0223 ,  A61M1/0088 ,  Y10T156/10

Abstract: A sealing drape may be suitable for use with a reduced-pressure treatment system for treating a tissue site. The sealing drape may have an interior surface adapted for positioning adjacent to a peripheral surface of the tissue site. The sealing drape may include a sealing material and an absorbent material. The sealing material may be hydrophobic and substantially free of hydrophilic components. Further, the sealing material may be positioned between the interior surface of the sealing drape and the absorbent material. The sealing drape may be used with a manifold for positioning at the tissue site, a reduced-pressure interface, and a reduced-pressure source. Methods of manufacture and treatment are also disclosed.

公开(公告)号：US09814485B2

公开(公告)日：2017-11-14

申请号：US14581646

申请日：2014-12-23

Applicant: KCI Licensing, Inc.

Inventor： Benjamin A. Pratt ,  Christopher Brian Locke ,  Timothy Mark Robinson ,  Kevin Higley ,  Tab Randolph ,  T. Blane Sanders

IPC: A61B17/322 ,  A61B17/00

CPC classification number: A61B17/322 ,  A61B2017/00761 ,  A61B2017/00774 ,  A61B2017/3225

Abstract: The present invention generally relates to devices and systems that utilize an inflatable bladder for generating, cutting, capturing, and/or transplanting one or more skin blisters. In some aspects, methods and devices in accordance with the present teachings can enable the harvesting of skin grafts from an increased variety of potential donor sites, such as areas of the body having uneven surfaces or a smaller radius of curvature (e.g., the arm) or large area donor sites where the creation of a vacuum may require a high power negative pressure source. In various aspects, systems, devices, and methods in accordance with the present teachings can also enable the efficient transplant of the grafts directly from the skin graft harvester to the recipient site without the transfer of the grafts generated by the harvester to another substrate prior to transplantation.

公开(公告)号：US09797392B2

公开(公告)日：2017-10-24

申请号：US14813977

申请日：2015-07-30

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian Locke ,  Aidan Marcus Tout

IPC: F04B45/04 ,  F04B45/047 ,  F04B43/02 ,  F04B43/04 ,  F04B53/10

CPC classification number: F04B45/047 ,  F04B43/023 ,  F04B43/04 ,  F04B43/043 ,  F04B45/04 ,  F04B53/10

Abstract: A two-cavity pump having a single valve in one cavity and a bidirectional valve in another cavity is disclosed. The pump has a side wall closed by two end walls for containing a fluid. An actuator is disposed between the two end walls and functions as a portion of a common end wall of the two cavities. The actuator causes an oscillatory motion of the common end walls to generate radial pressure oscillations of the fluid within both cavities. An isolator flexibly supports the actuator. The first cavity includes the single valve disposed in one of a first and second aperture in the end wall to enable fluid flow in one direction. The second cavity includes the bidirectional valve disposed in one of a third and fourth aperture in the end wall to enable fluid flow in both directions.