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公开(公告)号：US11564847B2
公开(公告)日：2023-01-31
申请号：US16338400
申请日：2017-09-29
申请人： Smith & Nephew PLC
发明人： Victoria Beadle , Mark Hesketh , William Kelbie , Damyn Musgrave , Joseph William Robinson , Daniel Steward
IPC分类号： A61F13/02 , A61M1/00 , A61F13/00 , F21Y115/10
摘要： Disclosed embodiments relate to apparatuses and methods for wound treatment. In some embodiments, a wound dressing apparatus can comprise a wound contact layer, a spacer layer, an absorbent layer positioned on the spacer layer, an electronics unit comprising a negative pressure source and/or electronic components, wherein the absorbent layer comprises a recess configured to receive the electronics unit and the absorbent layer is configured to be in fluid communication with the electronics unit, and a cover layer configured to cover and form a seal over the wound contact layer, the spacer layer, the absorbent layer, and the electronics unit.
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2.发明申请公开(公告)号：US20220133978A1
公开(公告)日：2022-05-05
申请号：US17526992
申请日：2021-11-15
申请人： Smith & Nephew PLC
发明人： Ben Alan Askem , Victoria Beadle , John Philip Gowans , Mark Hesketh , Allan Kenneth Frazer Grugeon Hunt , William Kelbie , Damyn Musgrave , Joseph William Robinson
摘要： Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, an apparatus includes a driving circuit that supplies a driving signal to a negative pressure source to cause the negative pressure source to provide negative pressure via a fluid flow path to a wound dressing. The apparatus furthers include a controller that adjusts a frequency of the driving signal supplied by the driving circuit according to a comparison of a previous magnitude and a subsequent magnitude of the driving signal while the negative pressure source provides negative pressure. The transfer of power to the negative pressure source can thereby be tuned to maximize an amount of power transferred to the negative pressure source.
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3.发明授权公开(公告)号：US11173240B2
公开(公告)日：2021-11-16
申请号：US16098563
申请日：2017-05-03
申请人： Smith & Nephew PLC
发明人： Ben Alan Askem , Victoria Beadle , John Philip Gowans , Mark Hesketh , Allan Kenneth Frazer Grugeon Hunt , William Kelbie , Damyn Musgrave , Joseph William Robinson
摘要： Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, an apparatus includes a driving circuit that supplies a driving signal to a negative pressure source to cause the negative pressure source to provide negative pressure via a fluid flow path to a wound dressing. The apparatus furthers include a controller that adjusts a frequency of the driving signal supplied by the driving circuit according to a comparison of a previous magnitude and a subsequent magnitude of the driving signal while the negative pressure source provides negative pressure. The transfer of power to the negative pressure source can thereby be tuned to maximize an amount of power transferred to the negative pressure source.
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4.发明申请公开(公告)号：US20190143007A1
公开(公告)日：2019-05-16
申请号：US16098563
申请日：2017-05-03
申请人： Smith & Nephew PLC
发明人： Ben Alan Askem , Victoria Beadle , John Philip Gowans , Mark Hesketh , Allan Kenneth Frazer Grugeon Hunt , William Kelbie , Damyn Musgrave , Joseph William Robinson
IPC分类号： A61M1/00
摘要： Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, an apparatus includes a driving circuit that supplies a driving signal to a negative pressure source to cause the negative pressure source to provide negative pressure via a fluid flow path to a wound dressing. The apparatus furthers include a controller that adjusts a frequency of the driving signal supplied by the driving circuit according to a comparison of a previous magnitude and a subsequent magnitude of the driving signal while the negative pressure source provides negative pressure. The transfer of power to the negative pressure source can thereby be tuned to maximize an amount of power transferred to the negative pressure source.
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公开(公告)号：US12127919B2
公开(公告)日：2024-10-29
申请号：US18096937
申请日：2023-01-13
申请人： Smith & Nephew PLC
发明人： Victoria Beadle , Mark Hesketh , William Kelbie , Damyn Musgrave , Joseph William Robinson , Daniel Steward
IPC分类号： A61F13/05 , A61F13/00 , A61F13/0203 , A61M1/00 , A61F13/0246 , F21Y115/10
CPC分类号： A61F13/05 , A61F13/022 , A61M1/962 , A61F2013/00174 , A61F13/0253 , F21Y2115/10
摘要： Disclosed embodiments relate to apparatuses and methods for wound treatment. In some embodiments, a wound dressing apparatus can comprise a wound contact layer, a spacer layer, an absorbent layer positioned on the spacer layer, an electronics unit comprising a negative pressure source and/or electronic components, wherein the absorbent layer comprises a recess configured to receive the electronics unit and the absorbent layer is configured to be in fluid communication with the electronics unit, and a cover layer configured to cover and form a seal over the wound contact layer, the spacer layer, the absorbent layer, and the electronics unit.
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6.发明公开公开(公告)号：US20230320905A1
公开(公告)日：2023-10-12
申请号：US18207601
申请日：2023-06-08
申请人： Smith & Nephew PLC
发明人： Ben Alan Askem , Victoria Beadle , John Philip Gowans , Mark Hesketh , Allan Kenneth Frazer Grugeon Hunt , William Kelbie , Damyn Musgrave , Joseph William Robinson
CPC分类号： A61F13/00068 , A61F13/0216 , A61M1/80 , A61M1/782 , A61M1/784 , A61M1/962 , A61M39/24 , A61M2205/3344 , A61M1/74 , A61M2039/2433
摘要： Disclosed embodiments relate to apparatuses and methods for wound treatment. In some embodiments, a negative pressure source is incorporated into a wound dressing apparatus so that the wound dressing and the negative pressure source are part of an integral or integrated wound dressing structure that applies the wound dressing and the negative pressure source simultaneously to a patient's wound. The negative pressure source and/or electronic components may be positioned between a wound contact layer and a cover layer of the wound dressing. The negative pressure source and/or electronic components may be separated and/or partitioned from an absorbent area of the dressing. A switch may be integrated with the wound dressing to control operation of the wound dressing apparatus. A connector may be direct air from an outlet of the negative pressure source to the environment. A non-return valve may inhibit back flow of air into the wound dressing.
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公开(公告)号：US20210378871A1
公开(公告)日：2021-12-09
申请号：US17406564
申请日：2021-08-19
申请人： Smith & Nephew PLC
发明人： Ben Alan Askem , Victoria Beadle , John Philip Gowans , Mark Hesketh , Allan Kenneth Frazer Grugeon Hunt , William Kelbie , Damyn Musgrave , Joseph William Robinson
摘要： Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, an apparatus includes a wound dressing, negative pressure source, user interface, sensor, and control circuitry. The user interface can receive an activation input. The sensor can detect whether the wound dressing is positioned over a wound. The control circuitry can cause supply of negative pressure in response to receipt of the activation input and a determination that the sensor detects that the wound dressing is positioned over the wound. In addition, the control circuitry can prevent supply of negative pressure in response to a determination that the sensor does not detect that the wound dressing is positioned over the wound.
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公开(公告)号：US20190142644A1
公开(公告)日：2019-05-16
申请号：US16098625
申请日：2017-05-03
申请人： Smith & Nephew PLC
发明人： Ben Alan Askem , Victoria Beadle , John Philip Gowans , Mark Hesketh , Allan Kenneth Frazer Grugeon Hunt , William Kelbie , Damyn Musgrave , Joseph William Robinson
摘要： Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, an apparatus includes a wound dressing, negative pressure source, user interface, sensor, and control circuitry. The user interface can receive an activation input. The sensor can detect whether the wound dressing is positioned over a wound. The control circuitry can cause supply of negative pressure in response to receipt of the activation input and a determination that the sensor detects that the wound dressing is positioned over the wound. In addition, the control circuitry can prevent supply of negative pressure in response to a determination that the sensor does not detect that the wound dressing is positioned over the wound.
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公开(公告)号：US20240122763A1
公开(公告)日：2024-04-18
申请号：US18394425
申请日：2023-12-22
申请人： Smith & Nephew PLC
发明人： Ben Alan Askem , Victoria Beadle , John Philip Gowans , Mark Hesketh , Allan Kenneth Frazer Grugeon Hunt , William Kelbie , Damyn Musgrave , Joseph William Robinson
CPC分类号： A61F13/05 , A61F13/00063 , A61M1/74 , A61M1/962 , A61M1/982 , A61M2205/13 , A61M2205/502
摘要： Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, an apparatus includes a wound dressing, negative pressure source, user interface, sensor, and control circuitry. The user interface can receive an activation input. The sensor can detect whether the wound dressing is positioned over a wound. The control circuitry can cause supply of negative pressure in response to receipt of the activation input and a determination that the sensor detects that the wound dressing is positioned over the wound. In addition, the control circuitry can prevent supply of negative pressure in response to a determination that the sensor does not detect that the wound dressing is positioned over the wound.
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10.发明授权公开(公告)号：US11305047B2
公开(公告)日：2022-04-19
申请号：US16098604
申请日：2017-05-03
申请人： Smith & Nephew PLC
发明人： Ben Alan Askem , Victoria Beadle , John Philip Gowans , Mark Hesketh , Allan Kenneth Frazer Grugeon Hunt , William Kelbie , Damyn Musgrave , Joseph William Robinson
IPC分类号： A61M1/00
摘要： Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, an apparatus includes a source of negative pressure, a coupling circuit, a driving circuit, and a controller. The driving circuit supplies a driving signal to the source of negative pressure via the coupling circuit to cause the source of negative pressure to provide negative pressure to a wound dressing. The coupling circuit includes an inductive reactance that limits a rate of change over time of the driving signal. The controller controls the driving signal supplied by the driving circuit.
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