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    Wound dressing for wound volume estimation
    32.
    发明授权
    Wound dressing for wound volume estimation 有权

    公开(公告)号：US11628094B2

    公开(公告)日：2023-04-18

    申请号：US17253263

    申请日：2019-06-11

    Applicant: KCI LICENSING, INC.

    Inventor： Justin R. Rice ,  Christopher A. Carroll ,  Benjamin A. Pratt ,  Shannon C. Ingram

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

    Abstract: A wound therapy system includes a therapy unit, a wound dressing and an optional controller. The therapy unit is configured to deliver instillation fluid to a wound site. The wound dressing is formed from a plurality of discrete, individual blocks that are selectively separable from one another along a plurality of separation-lines, allowing the wound dressing to be customized to the shape and size of the wound site. By calculating the remaining blocks that define the wound dressing following customization, the volume of the wound dressing may be determined. The controller may be configured to deliver fluid to the wound site based on this calculated volume. The controller may also optionally be used to gauge the healing of the wound site over time by monitoring the changes in volume of customized wound dressings as wound dressings are replaced during the course of treatment of the wound site.

    Wound therapy system with wound volume estimation
    33.
    发明授权
    Wound therapy system with wound volume estimation 有权

    公开(公告)号：US11471573B2

    公开(公告)日：2022-10-18

    申请号：US16366308

    申请日：2019-03-27

    Applicant: KCI LICENSING, INC.

    Inventor： Justin Rice ,  Shannon C. Ingram ,  Brett L. Moore

    IPC: A61M1/00 ,  A61F13/00

    Abstract: A volume of a wound is estimated using a dynamic pressure response measured during instillation of fluid to the wound using a negative pressure wound therapy system. A previously estimated wound volume may be used to detect and prevent overfill of fluid to the wound during future instillation events. For example, real-time pressure measurements may be compared to model data representative of expected pressure at a wound having a volume equal to the previously estimated wound volume, with instillation being stopped if the observed pressure varies from the expected pressure. A comparison of a total volume of fluid instilled to the wound may also be compared to the previously estimated wound volume to prevent overfill. The comparison of wound volume estimated based on an instillation event may also be compared to a wound volume estimated using other methods to provide a higher confidence wound volume estimate.

    Wound therapy system with wound volume estimation
    34.
    发明授权
    Wound therapy system with wound volume estimation 有权

    公开(公告)号：US11426506B2

    公开(公告)日：2022-08-30

    申请号：US16366407

    申请日：2019-03-27

    Applicant: KCI Licensing, Inc.

    Inventor： Brett L. Moore ,  Shannon C. Ingram ,  Justin Rice

    IPC: A61M1/00 ,  G16H50/50

    Abstract: A wound therapy system includes a negative pressure circuit, a pump, a pressure sensor, and a controller. The negative pressure circuit applies negative pressure to a wound. The pump is fluidly coupled to the negative pressure circuit and produces a negative pressure at the wound or within the negative pressure circuit. The pressure sensor measures the negative pressure within the negative pressure circuit or the wound. The controller performs a testing procedure including a first drawdown period, a leak rate determination period, a vent period, and a second drawdown period. The controller is configured to receive one or more pressure measurements of the pressure sensor over the leak rate determination period to determine a leak rate parameter, monitor an amount of elapsed time over the second drawdown period to determine a drawdown parameter, and estimate a volume of the wound based on the leak rate parameter and the drawdown parameter.

    Anatomical training and demonstration model for negative pressure and instillation therapy
    35.
    发明授权
    Anatomical training and demonstration model for negative pressure and instillation therapy 有权

    公开(公告)号：US11238756B2

    公开(公告)日：2022-02-01

    申请号：US16682321

    申请日：2019-11-13

    Applicant: KCI Licensing, Inc.

    Inventor： Christopher A. Carroll ,  Justin Rice ,  Shannon C. Ingram ,  Victor Clarke

    IPC: G09B23/34 ,  A61M1/00

    Abstract: A modular wound therapy training device, system, and method of use for the device are provided. The device may include a support tray, an elastic insert, a base within the elastic insert, a recess within the base, a conformable polymer, a dressing and a negative pressure source. The recess may be circumferentially smaller than the base and the conformable polymer may be sized to fit within the recess. The device is preferably sized and shaped to form a system when aligned and assembled with duplicates of the device. A method is provided to apply negative pressure and installation therapy when a negative pressure source is activated through a protective dressing.

    WOUND THERAPY SYSTEM WITH INTERNAL ALTERNATING ORIFICE
    38.
    发明申请
    WOUND THERAPY SYSTEM WITH INTERNAL ALTERNATING ORIFICE 审中-公开

    公开(公告)号：US20200246194A1

    公开(公告)日：2020-08-06

    申请号：US16363928

    申请日：2019-03-25

    Applicant: KCI LICENSING, INC.

    Inventor： Javier Gonzalez ,  Shannon C. Ingram

    IPC: A61F13/02 ,  A61M1/00 ,  A61B5/00

    Abstract: A wound therapy system includes a dressing sealable over a wound and defining a wound space between the dressing and the wound, tubing fluidly communicable with the wound space, and a canister fluidly communicable with the tubing. The canister, the tubing, and the dressing define a sealed space that includes the wound space. The wound therapy system also includes a therapy unit coupled to the canister. The therapy unit includes a sensor configured to measure a pressure in the sealed space, a valve positioned between the sealed space and a surrounding environment and controllable between an open position and a closed position, and a control circuit. The control circuit is configured to control the valve to alternate between the open position and the closed position to allow airflow through the valve, receive measurements from the sensor, and determine a volume of the wound space based on the measurements.

    Delivery-and-fluid-storage bridges for use with reduced-pressure systems
    39.
    发明授权
    Delivery-and-fluid-storage bridges for use with reduced-pressure systems 有权

    公开(公告)号：US10155075B2

    公开(公告)日：2018-12-18

    申请号：US14334510

    申请日：2014-07-17

    Applicant: KCI Licensing, Inc.

    Inventor： Richard Daniel John Coulthard ,  Christopher Brian Locke ,  Shannon C. Ingram ,  Timothy Mark Robinson

    IPC: A61M1/00 ,  A61F13/02

    Abstract: Systems, methods, and apparatuses are presented that facilitate the provision of reduced pressure to a tissue site by using a delivery-and-fluid-storage bridge, which separates liquids and gases and provides a flow path for reduced pressure. In one instance, a delivery-and-fluid-storage bridge includes a delivery manifold for delivering reduced pressure to a treatment manifold at the tissue site and an absorbent layer proximate the delivery manifold adapted to receive and absorb liquids. The delivery manifold and the absorbent layer are encapsulated in an encapsulating pouch. A first aperture is formed proximate a first longitudinal end of the delivery-and-fluid-storage bridge for fluidly communicating reduced pressure to the delivery manifold from a reduced-pressure source, and a second aperture is formed on a patient-facing side of the delivery-and-fluid-storage bridge. Reduced pressure is transferred to the tissue site via the second aperture. Other systems, apparatuses, and methods are disclosed.

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