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    Wound therapy system with wound volume estimation
    11.
    发明授权
    Wound therapy system with wound volume estimation 有权

    公开(公告)号：US11141317B2

    公开(公告)日：2021-10-12

    申请号：US16363763

    申请日：2019-03-25

    Applicant: KCI LICENSING, INC.

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

    IPC: A61M1/00 ,  A61F13/02 ,  A61B5/00 ,  A61M3/02 ,  A61B5/107 ,  A61F13/40 ,  A61F13/00 ,  A61F13/84

    Abstract: A wound therapy system includes a negative pressure circuit configured to apply negative pressure to a wound, a pump fluidly coupled to the negative pressure circuit and operable to control the negative pressure within the negative pressure circuit, a pressure sensor configured to measure the negative pressure within the negative pressure circuit or at the wound and a controller communicably coupled to the pump and the pressure sensor. The controller is configured to execute a pressure testing procedure including applying a pressure stimulus to the negative pressure circuit, observe a dynamic pressure response of the negative pressure circuit to the pressure stimulus using pressure measurements recorded by the pressure sensor, and estimate a wound volume of the wound based on the dynamic pressure response.

    Delivery-and-fluid-storage bridges for use with reduced-pressure systems
    13.
    发明授权
    Delivery-and-fluid-storage bridges for use with reduced-pressure systems 有权

    公开(公告)号：US10279088B2

    公开(公告)日：2019-05-07

    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.

    Wound therapy system with internal alternating orifice
    14.
    发明授权
    Wound therapy system with internal alternating orifice 有权

    公开(公告)号：US11491054B2

    公开(公告)日：2022-11-08

    申请号：US16363928

    申请日：2019-03-25

    Applicant: KCI LICENSING, INC.

    Inventor： Javier Gonzalez ,  Shannon C. Ingram

    IPC: A61M1/00 ,  A61F13/02 ,  A61B5/00 ,  A61F13/00 ,  A61F13/84 ,  A61F13/40

    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.

    WOUND THERAPY SYSTEM WITH WOUND VOLUME ESTIMATION
    15.
    发明申请
    WOUND THERAPY SYSTEM WITH WOUND VOLUME ESTIMATION 审中-公开

    公开(公告)号：US20200306422A1

    公开(公告)日：2020-10-01

    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.

    WOUND THERAPY SYSTEM WITH INSTILLATION THERAPY AND DYNAMIC PRESSURE CONTROL
    17.
    发明申请
    WOUND THERAPY SYSTEM WITH INSTILLATION THERAPY AND DYNAMIC PRESSURE CONTROL 审中-公开

    公开(公告)号：US20200078224A1

    公开(公告)日：2020-03-12

    申请号：US16567025

    申请日：2019-09-11

    Applicant: KCI LICENSING, INC.

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

    IPC: A61F13/02 ,  A61M1/00

    Abstract: A wound therapy system includes a dressing an instillation pump fluidly communicable with the dressing and configured to provide instillation fluid to the dressing, a negative pressure pump fluidly communicable with the dressing and configured to remove air from the dressing, and a control circuit communicably coupled to the instillation pump and the negative pressure pump. The control circuit is configured to control the instillation pump to provide an amount of the instillation fluid to the dressing, provide a soak period, and control the negative pressure pump to provide a cyclic variation of negative pressure at the dressing.

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