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公开(公告)号：US10391224B2
公开(公告)日：2019-08-27
申请号：US15605067
申请日：2017-05-25
发明人： Ryohei Katsuki , Tomoki Utsugida , Yuuki Hara
摘要： An extracorporeal blood circulation system reduces the risk of generation of air bubbles entering the circulation circuit associated with placement of a pressure sensor that detects a patient's blood pressure at a blood removal line. Instead of directly measuring pressure at the blood removal line where suction exists, an intermediate part pressure sensor detects pressure between a centrifugal pump and an oxygenator. A controller identifies a discharge pressure specific to the centrifugal pump based on a rotation speed of the pump and a blood flow rate. The discharge pressure and the intermediate pressure values are combined to estimate the pressure at the blood removal line.
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2.发明申请公开(公告)号：US20190001045A1
公开(公告)日：2019-01-03
申请号：US16113405
申请日：2018-08-27
摘要： An extracorporeal blood circulation system monitors blood level in a reservoir which temporarily stores the blood. A memory storage unit stores blood pressure measurements from a pressure sensor monitoring a blood pressure within a tube unit conveying blood from the reservoir relative to atmosphere. A processing unit that detects a height of a top surface of the blood stored in the reservoir based on changes in the blood pressure measurements and a conservation of mechanical energy of a blood flow inside the tube unit. A notification is generated if an abnormality is detected in the height of the blood in the reservoir.
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公开(公告)号：US20170258980A1
公开(公告)日：2017-09-14
申请号：US15605067
申请日：2017-05-25
发明人： Ryohei Katsuki , Tomoki Utsugida , Yuuki Hara
CPC分类号： A61M1/3607 , A61M1/1006 , A61M1/101 , A61M1/1086 , A61M1/1698 , A61M1/36 , A61M1/3666 , A61M2205/3331 , A61M2205/3334 , A61M2205/3355 , A61M2230/207 , A61M2230/50
摘要： An extracorporeal blood circulation system reduces the risk of generation of air bubbles entering the circulation circuit associated with placement of a pressure sensor that detects a patient's blood pressure at a blood removal line. Instead of directly measuring pressure at the blood removal line where suction exists, an intermediate part pressure sensor detects pressure between a centrifugal pump and an oxygenator. A controller identifies a discharge pressure specific to the centrifugal pump based on a rotation speed of the pump and a blood flow rate. The discharge pressure and the intermediate pressure values are combined to estimate the pressure at the blood removal line.
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公开(公告)号：US12108954B2
公开(公告)日：2024-10-08
申请号：US17487463
申请日：2021-09-28
发明人： Yuu Oosawa , Yuuki Hara , Wataru Karino , Naotaka Chino , Kei Honda , Takayuki Uchida , Masaru Ikegami , Xiaowei Lu
IPC分类号： A61B17/064 , A61B17/08 , A61B17/115 , A61B17/00
CPC分类号： A61B17/1155 , A61B17/085 , A61B2017/00884
摘要： An adhesion promotion device is disclosed, which is capable of reducing risk factors of an anastomotic leakage after surgery. The adhesion promotion device has a main body portion disposed between biological organs serving as a joint object. The main body portion has a first region and a second region formed along an outer edge of the first region. The second region includes an adhesion promotion portion that promotes adhesion of a biological tissue. The first region includes a holding portion having a holding force with respect to the biological tissue which is stronger than that of the adhesion promotion portion.
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公开(公告)号：US20190351128A1
公开(公告)日：2019-11-21
申请号：US16531374
申请日：2019-08-05
IPC分类号： A61M1/36 , G01F23/292
摘要： An extracorporeal circulation apparatus has a blood reservoir temporarily storing blood and a presence information acquisition unit to detect presence or absence of blood at respective wall locations in a two-dimensional array. A control unit determines the position of a blood surface on the basis of consecutive elements in the array having detected blood along at least one of a first direction parallel to the blood surface and a second direction perpendicular to the blood surface.
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公开(公告)号：US11654223B2
公开(公告)日：2023-05-23
申请号：US16113405
申请日：2018-08-27
CPC分类号： A61M1/3624 , A61M1/3639 , A61M1/3666 , G01F23/14 , G01F23/18 , A61M2205/3334 , A61M2205/3389 , A61M2205/52
摘要： An extracorporeal blood circulation system monitors blood level in a reservoir which temporarily stores the blood. A memory storage unit stores blood pressure measurements from a pressure sensor monitoring a blood pressure within a tube unit conveying blood from the reservoir relative to atmosphere. A processing unit that detects a height of a top surface of the blood stored in the reservoir based on changes in the blood pressure measurements and a conservation of mechanical energy of a blood flow inside the tube unit. A notification is generated if an abnormality is detected in the height of the blood in the reservoir.
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公开(公告)号：US11648340B2
公开(公告)日：2023-05-16
申请号：US16531374
申请日：2019-08-05
IPC分类号： A61M1/36 , G01F23/292
CPC分类号： A61M1/3624 , G01F23/292 , A61M2205/3334 , A61M2205/3379
摘要： An extracorporeal circulation apparatus has a blood reservoir temporarily storing blood and a presence information acquisition unit to detect presence or absence of blood at respective wall locations in a two-dimensional array. A control unit determines the position of a blood surface on the basis of consecutive elements in the array having detected blood along at least one of a first direction parallel to the blood surface and a second direction perpendicular to the blood surface.
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公开(公告)号：US11617819B2
公开(公告)日：2023-04-04
申请号：US16113386
申请日：2018-08-27
IPC分类号： A61M1/36 , A61M60/523 , A61M60/113 , A61M60/408 , A61M60/857 , A61M60/232 , A61M60/546 , A61M60/109
摘要： An extracorporeal circulation management device pumps blood in synchronization with heartbeats of a patient based on measurements of blood flow. Maximum and minimum blood flow measurement samples are compared with upper and lower threshold values to identify candidate timing for a systolic phase and diastolic phase of the heartbeat. During pulsatile pumping of the blood using the candidate timing, differences in the pulsatile flow measurements are determined. Based on the size of the difference, a final correction may be made to identification of the systolic and diastolic phases, and the corrected phase information is used to start and stop the motor unit.
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公开(公告)号：US20180369465A1
公开(公告)日：2018-12-27
申请号：US16113386
申请日：2018-08-27
摘要： An extracorporeal circulation management device pumps blood in synchronization with heartbeats of a patient based on measurements of blood flow. Maximum and minimum blood flow measurement samples are compared with upper and lower threshold values to identify candidate timing for a systolic phase and diastolic phase of the heartbeat. During pulsatile pumping of the blood using the candidate timing, differences in the pulsatile flow measurements are determined. Based on the size of the difference, a final correction may be made to identification of the systolic and diastolic phases, and the corrected phase information is used to start and stop the motor unit.
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