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51. 发明授权

US3759247A Electromagnetic flowmeter 失效
标题翻译：电磁流量计
公开(公告)号：US3759247A
公开(公告)日：1973-09-18
申请号：US3759247D
申请日：1971-07-01
申请人： DOLL RESEARCH
发明人： DOLL H , BRONER H
IPC分类号： A61B5/02 , A61B5/0265 , A61B5/0456 , G01F1/58
CPC分类号： A61B5/0456 , A61B5/0265 , G01F1/58
摘要： A noninvasive electromagnetic flowmeter particularly adapted to measure arterial blood flow in human beings is provided. A homogeneous magnetic field is produced in the region of the artery under measurement by means of at least one electromagnetic coil or a permanent magnet suitably positioned near the human being. Blood flow induced signals are sensed by electrodes placed on the skin adjacent the artery and fed to a measurement and control circuit. Electrocardiogram signals are sensed by a second pair of electrodes placed on the body near the heart and synchronize the operation of this system. One embodiment of the control and measurement system comprises a pair of auxiliary electrodes located where a strong and sharp cardiogram pulse can be repeatedly obtained to be used as a synchronizing signal and as a clock, at least one coil of large enough size having enough turns of wire to be adequate for the production of a strong and homogeneous magnetic field in the region of the artery under study, a source of D.C. current to feed that coil, means to reverse that D.C. current after a given number of heart cycles in accordance with a program controlled by the sychronizing signal, a pair of measuring electrodes placed on the skin adjacent the artery, an amplifier to amplify the signal appearing between said measuring elecrodes, with filtering means to eliminate the D.C. unbalance of the electrodes and the high frequency noise, means to paralyze the amplifier and to reverse its output during current reversal, and means synchronized by the synchronizing signal to average the pulsatile signal measured between the measuring electrodes during successive heart cycles so as to extract the repetitive wave shape of the blood flow pulses from the large random noise in which it is otherwise buried. In another embodiment of the control and measurement system, the coil in which a stable current is maintained during all the measuring intervals, as described in the paragraph above, is replaced by an electrically reversible permanent magnet. This permanent magnet is surrounded by a magnetizing coil in which DC current pulses of short duration are passed only at the times when the polarity of the magnetic field, and therefore the polarity of the permanent magnet, have to be reversed. There is no current in the magnetizing coil during the intervals when measurements of blood flow cycles are made and averaged. In still another embodiment of the control and measurement system, a permanent magnet is also used, but the reversal of the magnetic field, at the times when it is needed, is obtained by mechanically reversing or displacing the permanent magnet.
摘要翻译：提供了一种特别适用于测量人体动脉血流量的无创电磁流量计。通过至少一个电磁线圈或适当放置在人体附近的永久磁体，在测量的动脉区域产生均匀的磁场。通过放置在与动脉相邻的皮肤上的电极感测血流感应信号，并将其馈送到测量和控制电路。心电图信号由放置在心脏附近的身体上的第二对电极感测，并同步该系统的操作。

52. 发明授权

US3712133A Flowmeter probe 失效
标题翻译：流量计探头
公开(公告)号：US3712133A
公开(公告)日：1973-01-23
申请号：US3712133D
申请日：1970-07-24
申请人： STATHAM INSTRUMENT INC
发明人： WESTERSTEN A
IPC分类号： A61B5/0265 , G01F1/58 , G01P5/08
CPC分类号： A61B5/0265 , G01F1/58
摘要： An insulative hollow cylinder, whose internal bore is slightly larger than the external dimensions of the blood vessel on which it is to be mounted, has a longitudinal portion removed to form an access opening. A first magnetizing coil is formed about the exterior of the insulative cylinder and is looped to extend circumferentially about the cylinder at substantially 180* thereof. At each side of the first magnetizing coil there is provided at least one auxiliary winding whose field axis is directed through the blood vessel. The resultant magnetic field from the first magnetizing coil and auxiliary windings is highly uniform throughout the entire cross section of the blood vessel on which the probe is mounted.
摘要翻译：一个绝缘的中空圆筒，其内孔略大于要安装在其上的血管的外部尺寸，具有除去纵向部分以形成进入口。第一磁化线圈围绕绝缘圆筒的外部形成，并围绕圆柱体在其大致180°处周向延伸。在第一磁化线圈的每一侧设有至少一个辅助绕组，其磁场轴线通过血管。来自第一磁化线圈和辅助绕组的合成磁场在其上安装探针的血管的整个横截面上是高度均匀的。

53. 发明授权

US3681986A Fluid flow meters 失效
标题翻译：流体流量计
公开(公告)号：US3681986A
公开(公告)日：1972-08-08
申请号：US3681986D
申请日：1971-04-30
申请人： NAT RES DEV
发明人： WYATT DEREK GERALD
IPC分类号： A61B5/0265 , G01F1/58 , G01P5/08
CPC分类号： G01F1/588 , A61B5/0265
摘要： A flow meter for measuring the flow rate of an electrically conductive fluid, particularly blood, which comprises a tube, an electromagnet consisting of a ferro-magnetic core material in the form of a thin-walled collar encircling or substantially encircling the tube and windings on the core, the windings being wound transversely around the core in a uniform manner but being oppositely directed on diametrically opposed halves of the core, and a plurality of electrodes adapted to be in electrical contact with the following fluid and so arranged that in operation an induced potential will exist between the electrodes located in each half of the electromagnet when the fluid flows through the tube and a current is passed through the windings.
摘要翻译：一种用于测量导电流体，特别是血液的流量的流量计，其包括管，由围绕或基本上环绕管的薄壁环形的铁磁芯材料组成的电磁体和绕组芯部绕组以均匀的方式横向卷绕在芯上，但是相对地指向芯的径向相对的半部，以及多个电极，其适于与下列流体电接触，并且被布置成使得在操作中感应当流体流过管并且电流通过绕组时，位于电磁体的每一半中的电极之间将存在电势。

54. 发明授权

US3605726A Flexible,extra vascular electromagnetic blood flow probe 失效
标题翻译：灵活，额外的血管电磁流量探头
公开(公告)号：US3605726A
公开(公告)日：1971-09-20
申请号：US3605726D
申请日：1969-04-14
申请人： BRYN T WILLIAMS , BAREFOOT CHARLES A
发明人： WILLIAMS BRYN T , BAREFOOT CHARLES A
IPC分类号： A61B5/0265 , G01F1/58 , A61B5/02
CPC分类号： A61B5/0265 , G01F1/58
摘要： A FLEXIBLE AND NON-SURGICALLY REMOVABLE ELECTROMAGNETIC BLOOD FLOW PROBE SUITABLE FOR INTRODUCTION INTO LIVING CREATURES TO MEASURE RELATIVELY AND QUANTITIVELY THE VELOCITY, VOLUME OR CHANGE OF BLOOD FLOW THROUGH SELECTIVE BLOOD VESSELS AND ORGANS. THE PROBE IS POSITIONED AT THE TIME OF SURGERY FOR USE OPERATIVELY AND POST-OPERATIVELY, AND BECAUSE OF ITS FLEXIBILITY, SIZE AND SHAPE, IT CAN BE REMOVED FROM THE LIVING CREATURE WITHOUT FURTHER SURGERY. IT IS FORMED BY ENCLOSING A FLUX FORMING COIL HAVING COOPERATING ELECTRODES FOR SENSING A VOLTAGE GENERATED BY CONDUCTIVE BLOOD WITH A FLEXIBLE COVER.

55. 发明公开

US20240215887A1 SYSTEMS, DEVICES, SOFTWARE, AND METHODS FOR DIAGNOSIS OF CARDIAC ISCHEMIA AND CORONARY ARTERY DISEASE 审中-公开
公开(公告)号：US20240215887A1
公开(公告)日：2024-07-04
申请号：US18411247
申请日：2024-01-12
申请人： Genetesis, Inc.
发明人： Raj Muchhala , Emmanuel T. Setegn , Benjamin Donaldson Moore , Peeyush Shrivastava
IPC分类号： A61B5/243 , A61B5/02 , A61B5/024 , A61B5/0265 , A61B5/361 , A61B5/364 , A61B5/366 , G16H50/20
CPC分类号： A61B5/243 , A61B5/02405 , A61B5/0265 , A61B5/364 , A61B5/366 , A61B5/02007 , A61B5/361 , G16H50/20
摘要： Described herein are methods, software, systems and devices for detecting the presence of an abnormality in an organ, tissue, body, or portion thereof of a subject by analysis of the electromagnetic fields generated by the organ, tissue, body, or portion thereof.

56. 发明授权

US11969230B2 Passive transponder system and pressure wave measuring device 有权
公开(公告)号：US11969230B2
公开(公告)日：2024-04-30
申请号：US16956567
申请日：2018-12-18
申请人： VesselSens GmbH
发明人： Alexej Domnich , Fabian Tutsch
IPC分类号： A61B5/00 , A61B5/0215 , A61B5/0265
CPC分类号： A61B5/0031 , A61B5/0215 , A61B5/6862 , A61B5/0265 , A61B2562/0247
摘要： The invention relates to a passive transponder system comprising a first or second conductor loop structure and a first and a second capacitive pressure sensor, wherein each conductor loop structure is coupled to one of said capacitive pressure sensors to form a resonant circuit, and the first conductor loop structure is positioned at a non-vanishing angle in relation to the second conductor loop structure. The resonant frequencies of the resonant circuits are selected such that they do not overlap to result in beating. The invention also relates to a pressure wave measuring device comprising such a passive transponder system, and a readout unit.

57. 发明授权

US11961322B2 Force sensor having force sensor electrodes, display device including the same, and method for driving the same 有权
公开(公告)号：US11961322B2
公开(公告)日：2024-04-16
申请号：US17189203
申请日：2021-03-01
申请人： Samsung Display Co., LTD.
发明人： Hee Seomoon , Won Ki Hong , Hyeon Jun Lee
IPC分类号： G06V40/13 , A61B5/0265 , G06F1/16
CPC分类号： G06V40/1318 , A61B5/0265 , G06F1/1684 , A61B2562/0261
摘要： Provided are a force sensor, a display device including the same, and a method of driving the same. The force sensor includes a first base substrate and a second base substrate facing each other; first force sensor electrodes extending in a first direction and arranged in a second direction crossing the first direction on the first base substrate; second force sensor electrodes extending in the second direction and arranged in the first direction on the second base substrate; and a sensor hole configured to transmit light. Any one of the first force sensor electrodes includes a first sub-force sensor electrode disposed on a first side of the sensor hole and a second sub-force sensor electrode disposed on a second side opposite to the first side of the sensor hole.

58. 发明授权

US11737707B2 Blood pressure apparatus using active materials and related methods 有权
公开(公告)号：US11737707B2
公开(公告)日：2023-08-29
申请号：US16576045
申请日：2019-09-19
申请人： Intel Corporation
发明人： Mark E. Sprenger , Paul J. Gwin , Aaron P. Anderson , Christian Amoah-Kusi
IPC分类号： A61B5/022 , A61B5/00 , A61B5/026 , A61B7/04 , A61B5/0265
CPC分类号： A61B5/6804 , A61B5/0004 , A61B5/0261 , A61B5/02208 , A61B5/02225 , A61B5/681 , A61B7/04 , A61B7/045 , A61B5/0265
摘要： Example blood pressure apparatus using active materials and related methods are described herein. An example apparatus includes a band to be worn around a limb of a user, an active material carried by the band and a controller to: (1) apply an activation signal to the active material to constrict blood flow in the limb, and (2) reduce the activation signal to allow blood flow in the limb.

59. 发明公开

US20230172537A1 INTELLIGENT VASCULAR GRAFT 审中-公开
公开(公告)号：US20230172537A1
公开(公告)日：2023-06-08
申请号：US17457593
申请日：2021-12-03
申请人： Hong Kong Centre for Cerebro-cardiovascular Health Engineering Limited
发明人： Bee Luan KHOO , Zhiqiang MA
IPC分类号： A61B5/00 , H01L41/113 , H01L41/193 , A61B5/0265 , A61F2/06 , G16H40/67
CPC分类号： A61B5/4851 , A61B5/0265 , A61B5/686 , A61F2/06 , G16H40/67 , H01L41/193 , H01L41/1132 , H01L41/1136
摘要： A vascular graft includes a flexible substrate that can assume an unrolled configuration, in which the substrate extends along a main extension plane, and a rolled-up configuration, in which a first side of the substrate is facing radially inward and a second sideof the substrate is facing radially outward. At least one pressure sensing device is arranged on the first side of the substrate and includes a first electrode, a second electrode, and a piezoelectric element arranged between the two electrodes. At least one velocity sensing device is arranged on the first side of the substrate and a first electrode, a second electrode, and a piezoelectric element arranged between the electrodes. The graft can be used in a vascular graft system.

60. 发明申请

US20230079852A1 ASSIGNMENT OF MR IMAGES TO CARDIAC PHASES 有权
公开(公告)号：US20230079852A1
公开(公告)日：2023-03-16
申请号：US17897767
申请日：2022-08-29
申请人： Siemens Healthcare GmbH , Guy's & St. Thomas' NHS Foundation Trust
发明人： Peter SPEIER , Peter GATEHOUSE
IPC分类号： A61B5/00 , A61B5/055 , A61B5/36 , A61B5/352 , A61B5/0265 , A61B5/33
摘要： A method includes determining a heart beat signal during acquisition of MR images obtained at a plurality of cardiac cycles; determining at least one physiological parameter of a heart obtained at the plurality of cardiac cycles; determining a model including, determining, in each of the cardiac cycles, a variable time interval of variable duration and at least one additional time interval based on the heart beat signal and the at least one physiological parameter, the at least one additional time interval having a lower variability in duration than the variable time interval; determining a duration of the variable time interval and a duration of the cardiac cycle for each of the cardiac cycles based on the heart beat signal and the at least one physiological parameter; and assigning the MR images to the different cardiac phases based on the variable time interval and each of the cardiac cycles.

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