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公开(公告)号：US10953150B2
公开(公告)日：2021-03-23
申请号：US15575602
申请日：2016-05-17
发明人： Stephen Turner
IPC分类号： A61M1/36
摘要： A control system for controlling a quantity of blood in a blood reservoir (10) of a perfusion system supplied by a venous line (V), wherein a pump (20) circulates blood from the blood reservoir (10) through an outgoing line (A), comprises a venous flow sensor (22) to measure a venous blood flow rate, an outlet flow sensor (24) to measure an outgoing blood flow rate, and a controller to control the pump (20) to prevent the outgoing blood flow rate from exceeding the venous blood flow rate. Thereby, a decrease of blood in the blood reservoir (10) can be arrested.
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公开(公告)号：US20180264187A1
公开(公告)日：2018-09-20
申请号：US15763660
申请日：2016-09-08
发明人： Stephen Turner
IPC分类号： A61M1/36
CPC分类号： A61M1/3639 , A61M1/3621 , A61M1/3664 , A61M1/3666 , A61M2205/3331 , A61M2205/3341 , A61M2205/3365
摘要： A control system controlling the line pressure in a blood supply system (1) in which a pump (14) pumps blood from a reservoir (10) via a primary passage (18) toward a plurality of outlets (16, 26, 26a), wherein one or more outlets are openable to permit flow and closable to block flow, said control system comprises a monitoring arrangement to determine a line pressure in the primary passage, and a controller responsive to the monitoring arrangement and controlling the pump (14) to maintain the line pressure in the primary passage (18) above a pre-set level. The control system practically eliminates the risk of a momentary reduction in blood supply line pressure when an outlet is opened.
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公开(公告)号：US20180154061A1
公开(公告)日：2018-06-07
申请号：US15575602
申请日：2016-05-17
发明人： Stephen Turner
IPC分类号： A61M1/36
CPC分类号： A61M1/3624 , A61M1/3627 , A61M1/3666 , A61M2205/3334 , A61M2205/3341 , A61M2205/3379
摘要： A control system for controlling a quantity of blood in a blood reservoir (10) of a perfusion system supplied by a venous line (V), wherein a pump (20) circulates blood from the blood reservoir (10) through an outgoing line(A), comprises a venous flow sensor (22) to measure a venous blood flow rate,an outlet flow sensor (24) to measure an outgoing blood flow rate, and a controller to control the pump (20) to prevent the outgoing blood flow rate from exceeding the venous blood flow rate. Thereby,a decrease of blood in the blood reservoir(10) can be arrested.
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公开(公告)号：US20170354814A1
公开(公告)日：2017-12-14
申请号：US15542235
申请日：2016-01-08
发明人： Stephen Turner
摘要： A clamp arrangement for retaining a flexible tube (18) during operation of a roller pump (10) for pumping fluid, the clamp arrangement comprising a pair of rotatable bobbins (24A, 24B, 26A, 26B) mounted adjacent to each other. Each bobbin (24A, 24B, 26A, 26B) has a tapered groove (30), formed partially around a cylindrical surface of the bobbin (24A, 24B, 26A, 26B), and counter rotation of the bobbins (24A, 24B, 26A, 26B) clamps the tube 18 between the bobbins (24A, 24B, 26A, 26B) in the tapered grooves (30). The clamp arrangement allows tubes of different shapes and diameters to be securely held without overly deforming the tube.
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公开(公告)号：US11541158B2
公开(公告)日：2023-01-03
申请号：US15994315
申请日：2018-05-31
摘要： An exhaust gas flow control system for an oxygenator of an extracorporeal ventilation system connected to an oxygenation gas supply line and to an exhaust line for removal of exhaust gas comprises a flow control path, a pressure control path, an exhaust flow regulator responsive to the controller, and an exhaust gas pressure regulator responsive to a controller configured to maintain a pre-determined pressure level in the exhaust line. This provides a better degree of control over the pressure across the oxygenator from oxygenation gas inlet to exhaust.
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公开(公告)号：US20220323741A1
公开(公告)日：2022-10-13
申请号：US17835709
申请日：2022-06-08
发明人： Stephen Turner
IPC分类号： A61M39/28
摘要： A clamping mechanism (30) for clamping a flexible tube comprises two rotatable bobbins (22, 32), each with a tube-engaging surface portion (24) defining boundaries of: a free space through which a tube may extend. The shape of: the tube-engaging surface portion (24) changes around the bobbin circumference, such that axial rotation of the bobbins (22, 32) reduces the free space and thereby squeezes the tube. This allows the flow through the tube to be altered dependent on the rotation of: the bobbins.
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公开(公告)号：US10773071B2
公开(公告)日：2020-09-15
申请号：US15542235
申请日：2016-01-08
发明人： Stephen Turner
摘要： A clamp arrangement for retaining a flexible tube (18) during operation of a roller pump (10) for pumping fluid, the clamp arrangement comprising a pair of rotatable bobbins (24A, 24B, 26A, 26B) mounted adjacent to each other. Each bobbin (24A, 24B, 26A, 26B) has a tapered groove (30), formed partially around a cylindrical surface of the bobbin (24A, 24B, 26A, 26B), and counter rotation of the bobbins (24A, 24B, 26A, 26B) clamps the tube 18 between the bobbins (24A, 24B, 26A, 26B) in the tapered grooves (30). The clamp arrangement allows tubes of different shapes and diameters to be securely held without overly deforming the tube.
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公开(公告)号：US10556052B2
公开(公告)日：2020-02-11
申请号：US15532656
申请日：2015-12-03
发明人： Stephen Turner
摘要： A control system controlling blood gas values in blood processed by an oxygenator, wherein the oxygenator generates arterial blood by exposing venous blood to oxygen from an oxygenation gas supply, comprises a monitoring arrangement to determine a level of the blood gas values in the arterial blood and a controller that is responsive to the monitoring arrangement and configured to control parameters of the oxygenation gas supply to the oxygenator. This allows the blood gas values to be adjusted toward a pre-determined level.
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公开(公告)号：US20190321621A1
公开(公告)日：2019-10-24
申请号：US16080565
申请日：2017-02-28
发明人： Stephen Turner
IPC分类号： A61M39/28
摘要： A clamping mechanism (30) for clamping a flexible tube comprises two rotatable bobbins (22, 32), each with a tube-engaging surface portion (24) defining boundaries of a free space through which a tube may extend. The shape of the tube-engaging surface portion (24) changes around the bobbin circumference, such that axial rotation of the bobbins (22, 32) reduces the free space and thereby squeezes the tube. This allows the flow through the tube to be altered dependent on the rotation of the bobbins.
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公开(公告)号：US20170368247A1
公开(公告)日：2017-12-28
申请号：US15532639
申请日：2015-12-03
发明人： Stephen Turner
CPC分类号： A61M1/1698 , A61M1/32 , A61M1/3632 , A61M1/3666 , A61M1/3667 , A61M16/101 , A61M16/22 , A61M2205/3334 , A61M2205/3341
摘要： An oxygenation system for a ventilation system comprises an inlet for receiving oxygenation gas at an oxygenation gas flow rate into an oxygenator, and an exhaust gas remover to remove exhaust gas at an exhaust gas flow rate from the oxygenator, and one or more flow controllers for controlling the exhaust gas flow rate relative to the oxygenation gas flow rate. This allows the amount of total gas entering the oxygenator and the amount of total gas removed from the oxygenator to be controlled with greater accuracy.
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