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    CONTROLLING OPERATION OF A REDUCED PRESSURE THERAPY SYSTEM BASED ON DYNAMIC DUTY CYCLE THRESHOLD DETERMINATION
    2.
    发明申请
    CONTROLLING OPERATION OF A REDUCED PRESSURE THERAPY SYSTEM BASED ON DYNAMIC DUTY CYCLE THRESHOLD DETERMINATION 有权

    公开(公告)号：US20210196870A1

    公开(公告)日：2021-07-01

    申请号：US17140377

    申请日：2021-01-04

    申请人： Smith & Nephew PLC

    发明人： Ben Alan Askem

    IPC分类号： A61M1/00

    摘要： Negative pressure wound therapy apparatuses and dressings, and systems and methods for operating such apparatuses for use with dressings are disclosed. In some embodiments, controlling the delivery of therapy can be based on monitoring and detecting various operating conditions. An apparatus can have a controller configured to monitor a duty cycle of a source of negative pressure. Based on the monitored duty cycle, the controller can determine whether a leak is present and provide an indication to a user. The controller can determine a duty cycle threshold in order to achieve an optimal or near optimal balance between an uninterrupted delivery of therapy, avoidance inconveniencing a user, conserving power, achieving optimal or near optimal efficiency, and/or limiting vibrational noise. In some embodiments, the duty cycle threshold is determined based at least in part on a capacity of a power source and an operational time of the apparatus.

    NEGATIVE PRESSURE WOUND THERAPY APPARATUS AND METHODS FOR OPERATING THE APPARATUS
    3.
    发明申请
    NEGATIVE PRESSURE WOUND THERAPY APPARATUS AND METHODS FOR OPERATING THE APPARATUS 有权

    公开(公告)号：US20210069389A1

    公开(公告)日：2021-03-11

    申请号：US17093402

    申请日：2020-11-09

    申请人： Smith & Nephew PLC

    发明人： Ben Alan Askem ,  Allan Kenneth Frazer Grugeon Hunt

    IPC分类号： A61M1/00 ,  A61F13/02

    摘要： Disclosed embodiments relate to apparatuses and methods for wound treatment. In certain embodiments, a negative pressure wound therapy apparatus includes one or more indicators configured to illuminate in a pattern to communicate at least one of a status of a pump assembly and/or of a dressing. The pattern is configured to enable an electronic device comprising at least one camera to capture the illumination pattern of the one or more indicators and to determine the status corresponding to the pattern of illumination. In some embodiments, a negative pressure wound therapy apparatus is powered by an energy generator that has a first side configured to be in contact with a skin surface of a patient and a second side configured to be exposed to atmosphere, and the energy generator is configured to utilize a temperature differential between the skin surface and the atmosphere to generate electrical energy to power the apparatus. In some embodiments, a negative pressure wound therapy apparatus is powered by an energy harvester that utilizes radio frequency spectrum to power one or more components of negative pressure wound therapy apparatus. In certain embodiments, a negative pressure wound therapy apparatus includes one or more RF energy harvesters to power a pump assembly.

    Reduced pressure apparatus and methods
    4.
    发明授权
    Reduced pressure apparatus and methods 有权

    公开(公告)号：US10660994B2

    公开(公告)日：2020-05-26

    申请号：US15647624

    申请日：2017-07-12

    申请人： Smith & Nephew PLC

    发明人： Ben Alan Askem ,  Sarah Jenny Collinson ,  John Cowan-Hughes ,  Christopher John Fryer ,  Tom Moy ,  Paul Mullen ,  Derek Nicolini ,  Neil Pryor ,  Philip Walsh ,  Ian Binder

    IPC分类号： A61M1/00 ,  A61F13/00 ,  A61M27/00

    摘要： Some embodiments have a pump assembly mounted to or supported by a dressing for reduced pressure wound therapy. The dressing can have visual pressure, saturation, and/or temperature sensors to provide a visual indication of the level of pressure, saturation, and/or temperature within the dressing. Additionally, the pump assembly can have a pressure sensor in communication with the flow pathway through the pump, and at least one switch or button supported by the housing, the at least one switch or button being accessible to a user and being in communication with the controller. The pump assembly can have a controller supported within or by the housing, the controller being configured to control an operation of the pump. The pump can be configured to be sterilized following the assembly of the pump such that all of the components of the pump have been sterilized.

    CONTROLLING OPERATION OF A REDUCED PRESSURE THERAPY SYSTEM BASED ON DYNAMIC DUTY CYCLE THRESHOLD DETERMINATION
    6.
    发明申请
    CONTROLLING OPERATION OF A REDUCED PRESSURE THERAPY SYSTEM BASED ON DYNAMIC DUTY CYCLE THRESHOLD DETERMINATION 审中-公开

    公开(公告)号：US20180185556A1

    公开(公告)日：2018-07-05

    申请号：US15904908

    申请日：2018-02-26

    申请人： SMITH & NEPHEW PLC

    发明人： Ben Alan Askem

    IPC分类号： A61M1/00 ,  H02M1/00

    摘要： Negative pressure wound therapy apparatuses and dressings, and systems and methods for operating such apparatuses for use with dressings are disclosed. In some embodiments, controlling the delivery of therapy can be based on monitoring and detecting various operating conditions. An apparatus can have a controller configured to monitor a duty cycle of a source of negative pressure. Based on the monitored duty cycle, the controller can determine whether a leak is present and provide an indication to a user. The controller can determine a duty cycle threshold in order to achieve an optimal or near optimal balance between an uninterrupted delivery of therapy, avoidance inconveniencing a user, conserving power, achieving optimal or near optimal efficiency, and/or limiting vibrational noise. In some embodiments, the duty cycle threshold is determined based at least in part on a capacity of a power source and an operational time of the apparatus.

    Systems and methods for controlling operation of a reduced pressure therapy system
    10.
    发明授权
    Systems and methods for controlling operation of a reduced pressure therapy system 有权

    公开(公告)号：US11623039B2

    公开(公告)日：2023-04-11

    申请号：US16389660

    申请日：2019-04-19

    申请人： Smith & Nephew PLC

    发明人： Julie Allen ,  Ben Alan Askem ,  Sarah Jenny Collinson ,  Richard Thomas Hughey ,  Derek Nicolini

    IPC分类号： A61M5/168 ,  A61M39/22 ,  A61F13/00 ,  A61M1/00

    摘要： Negative pressure wound therapy apparatuses and dressings, and systems and methods for operating such apparatuses for use with dressings are disclosed. In some embodiments, controlling the delivery of therapy can be based on monitoring and detecting various operating conditions. An apparatus can have a controller configured to monitor the duty cycle of a source of negative pressure and, based on the monitored duty cycle, determine whether a leak is present. The controller can be configured to provide an indication that a leak is present. For example, the controller can be configured to suspend and/or pause the delivery of therapy, and to restart the delivery of therapy due to a timeout, request from a user, etc. In addition, the controller can be configured to pause and/or restart the delivery of therapy upon a request from the user, such as in response to the user operating a switch.