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公开(公告)号：US20230277749A1
公开(公告)日：2023-09-07
申请号：US18137725
申请日：2023-04-21
申请人： Smith & Nephew PLC
CPC分类号： A61M1/75 , A61F13/0216 , A61M1/74 , A61M1/912 , A61M1/918 , A61M1/962 , A61M1/982 , A61M2205/3334 , A61M2205/502
摘要： Embodiments of apparatuses and methods for providing negative pressure wound therapy to multiple wounds are disclosed. In some embodiments, an apparatus includes a negative pressure source configured to couple via a plurality of fluid flow paths to a plurality of wound dressings. The plurality of flow paths includes a plurality of calibrated leaks. The apparatus also includes a controller configured to determine a total rate of flow in the plurality of fluid flow paths and compare the total rate of flow to a plurality of thresholds associated with the plurality of calibrated leaks to determine one or more operating conditions, such as a blockage in one or more of the plurality of flow paths. An indication of the operating condition can be provided.
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22.发明授权公开(公告)号：US11744932B2
公开(公告)日：2023-09-05
申请号：US17044535
申请日：2019-05-15
发明人： Ben Alan Askem
IPC分类号： A61M1/00
CPC分类号： A61M1/75 , A61M1/96 , A61M1/98 , A61M2205/15 , A61M2205/3331 , A61M2205/50
摘要： A negative pressure wound therapy device can include a negative pressure source and a controller configured to activate the negative pressure source for a first duration of time to attempt to reduce pressure under the wound dressing to approximately a negative pressure set point, subsequent to expiration of the first duration of time, deactivate the negative pressure source after pressure under the wound dressing is reduced to approximately the negative pressure set point, activate the negative pressure source for a second duration of time to attempt to reduce pressure in the fluid flow path, the second duration of time subsequent to the first duration of time, determine a pressure change in a fluid flow path over the second duration of time, and, in response to determining that the pressure change in the fluid flow path over the second duration of time indicates reduction in pressure, provide indication of a blockage.
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公开(公告)号：US11730877B2
公开(公告)日：2023-08-22
申请号：US17140377
申请日：2021-01-04
申请人： Smith & Nephew PLC
发明人： Ben Alan Askem
CPC分类号： A61M1/96 , A61M1/74 , A61M1/75 , A61M1/985 , A61M2205/15 , A61M2205/276 , A61M2209/088 , H02M1/0003 , H02M1/0012
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.
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24.发明授权公开(公告)号：US11696999B2
公开(公告)日：2023-07-11
申请号：US17077793
申请日：2020-10-22
申请人： Roivios Limited
CPC分类号： A61M25/04 , A61M1/73 , A61M1/74 , A61M1/743 , A61M1/75 , A61M1/80 , A61M1/84 , A61M25/007 , A61M25/0017 , A61M25/0023 , A61M25/0026 , A61M25/0041 , A61M25/0108 , A61M25/1025 , A61M25/10 , A61M39/12 , A61M2025/0213 , A61M2202/0496 , A61M2205/3303 , A61M2205/3317 , A61M2205/3334 , A61M2205/3368 , A61M2205/52 , A61M2205/583 , A61M2210/1082 , A61M2210/1085 , A61M2210/1089 , A61M2230/00 , A61M2230/207 , A61M2230/50 , A61M2230/65
摘要： A ureteral catheter is provided, including a drainage lumen including a proximal portion and a distal portion configured to be positioned in a patient's kidney, renal pelvis, and/or in the ureter adjacent to the renal pelvis, the distal portion including a retention portion for maintaining positioning of the distal portion of the drainage lumen, the retention portion including at least two openings on a sidewall of the retention portion for permitting fluid flow into the drainage lumen wherein a total area of a proximal most opening of the at least two openings is less than a total area of more distal opening(s) nearer to the distal end of the drainage lumen, and wherein when negative pressure is applied through the ureteral catheter, fluid is drawn into the ureteral catheter through the at least two openings.
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25.发明公开公开(公告)号：US20230201443A1
公开(公告)日：2023-06-29
申请号：US17563766
申请日：2021-12-28
发明人： Yehuda Algawi , Assaf Govari , Ilya Sitnitsky , Eran Aharon
CPC分类号： A61M1/743 , A61F9/00745 , A61M1/73 , A61M1/75 , A61B2017/32007
摘要： A system for controlling aspiration of a phacoemulsification probe inserted into an eye includes an anti-vacuum surge (AVS) module, one or more sensors, a vacuum relief valve, and a processor. The AVS module is coupled with an aspiration channel of the probe and is configured to mitigate vacuum surges in the channel by regulating flow via the channel. The one or more sensors are configured to measure fluid parameters in the channel. The vacuum relief valve, which is fluidly coupled with the channel, is configured to controllably relieve vacuum in the channel. The processor is configured to identify a change in at least one of the fluid parameters by reading at least one of the one or more sensors, and, responsively to an identified change in fluid parameters, operate the vacuum relief valve using pulse width modulation (PWM) to maintain a pressure in the channel within a predefined range.
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26.发明公开公开(公告)号：US20230145353A1
公开(公告)日：2023-05-11
申请号：US17919700
申请日：2021-04-23
IPC分类号： A61M1/00
CPC分类号： A61M1/966 , A61M1/75 , A61M2205/3344
摘要： A negative pressure source can be fluidically connected to the wound dressing, the wound dressing can be positioned to cover at least a portion of the wound, and the negative pressure source can be controlled to supply negative pressure to the wound via the fluid flow path. An actuator of the negative pressure source can be controlled to operate in a dual mode by transitioning between a proportional-integral (PI) control or proportional-integral-derivative (PID) control and a pulsed control. Stalling of the actuator can be prevented, and therapy can be provided without interruptions.
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公开(公告)号：US11642448B2
公开(公告)日：2023-05-09
申请号：US16494224
申请日：2018-03-15
申请人： Smith & Nephew PLC
CPC分类号： A61M1/75 , A61F13/0216 , A61M1/74 , A61M1/912 , A61M1/918 , A61M1/962 , A61M1/982 , A61M2205/3334 , A61M2205/502
摘要： In some embodiments, an apparatus for providing negative pressure wound therapy to multiple wounds includes a negative pressure source configured to couple via a plurality of fluid flow paths to a plurality of wound dressings. The plurality of flow paths includes a plurality of calibrated leaks. The apparatus also includes a controller configured to determine a total rate of flow in the plurality of fluid flow paths and compare the total rate of flow to a plurality of thresholds associated with the plurality of calibrated leaks to determine one or more operating conditions, such as a blockage in one or more of the plurality of flow paths. An indication of the operating condition can be provided.
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公开(公告)号：US20240358908A1
公开(公告)日：2024-10-31
申请号：US18140234
申请日：2023-04-27
发明人： Vadim Gliner , Eran Haas , Assaf Govari , Adam Walter Toner
CPC分类号： A61M1/742 , A61F9/00745 , A61M1/73 , A61M1/75 , A61M2039/226 , A61M2205/3341 , A61M2205/505
摘要： A system includes an anti-vacuum surge (AVS) mechanism and a processor. The AVS mechanism is configured to suppress a vacuum surge during the phacoemulsification procedure. The processor is configured to (i) during the phacoemulsification procedure, receive pressure readings from one or more sensors, (ii) using the pressure readings, estimate an occurrence of a vacuum surge, and (iii) upon estimating the occurrence of the vacuum surge, activate the AVS mechanism in a predefined pulsed manner to suppress the vacuum surge.
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29.发明公开公开(公告)号：US20240341786A1
公开(公告)日：2024-10-17
申请号：US18750647
申请日：2024-06-21
申请人： Penumbra, Inc.
发明人： Nicole Trosper , Stephen Pons
CPC分类号： A61B17/22 , A61M1/75 , A61M1/76 , A61M1/77 , A61M1/774 , A61B17/00 , A61B2017/00022 , A61B2017/00561 , A61B17/32037 , A61B17/3498 , A61B90/06 , A61B2090/064 , A61B2217/005 , A61M39/105 , A61M2205/3334 , A61M2205/3344
摘要： A platform of computing systems is configured to receive thrombectomy procedure data that is associated with a user of an aspiration thrombectomy system. The procedure data includes sets of temporal datapoints associated with a thrombectomy procedure. The platform of computing systems is further configured to generate thrombectomy analytics data based on baseline procedure data and the sets of datapoints. The platform of computing systems is further configured to visually display the thrombectomy analytics data, and to provide comparative data metrics for selection on an interactive interface.
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30.发明授权公开(公告)号：US12097095B2
公开(公告)日：2024-09-24
申请号：US17555195
申请日：2021-12-17
申请人： Smith & Nephew, Inc.
发明人： John Buan , Richard Willems
CPC分类号： A61F13/05 , A61M1/74 , A61M1/75 , A61M1/96 , A61F2013/00174 , A61F2013/00536 , A61M2205/33 , A61M2210/04
摘要： A method for providing a negative pressure wherein a pump is cycled on and off to achieve a target negative pressure, which is set slightly lower than the therapeutic negative pressure. A device determines the actual pressure by averaging samples which may occur at a different rate than the pump cycle.
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