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公开(公告)号：WO2021254017A1
公开(公告)日：2021-12-23
申请号：PCT/CN2021/092149
申请日：2021-05-07
Applicant: 首都医科大学附属北京安贞医院
Abstract: 一种跨心动周期的图像数据采集设备，包括：比较装置（401），确定实际心率与心率阈值的比较结果，基于比较结果确定进行图像数据采集时的周期系数（201）；周期确定装置（402），基于周期系数确定进行图像数据采集时的每个采集周期所包括的心动周期的数量，并基于实际心率确定进行图像数据采集时的每个心动周期的时间长度（202）；延迟确定装置（403），根据实际心率、调整因子和反转时间确定脉冲准备时间，基于反转时间和脉冲准备时间确定触发延迟时间（203）；时刻确定装置（404），根据采集周期的周期起始时刻和触发延迟时间确定在采集周期中进行图像数据采集的采集起始时刻（204）；以及采集装置（405），基于采集起始时刻和持续时间以跨心动周期的方式在心率波形中进行图像数据采集（205）。
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公开(公告)号：WO2021224038A1
公开(公告)日：2021-11-11
申请号：PCT/EP2021/060778
申请日：2021-04-26
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： WEISS, Steffen
IPC: G01R33/28 , G01R33/48 , G01R33/3415
Abstract: The present invention relates to a system (10) for detection of Radio Frequency (RF) induced heating of a patient undergoing a Magnetic Resonance Imaging (MRI) examination. The system comprises a form (20); and a processing unit (30). The form is configured to be placed around at least a part of a patient undergoing a Magnetic Resonance Imaging "MRI" examination in an MRI scanner. The form comprises a material (40), and the form is configured such that the material is in thermal contact with the patient when the form is placed around the at least part of the patient undergoing the MRI examination. The processing unit is configured to receive interrogation data of the material. The processing unit is configured to determine that RF induced heating of the patient has occurred. The determination comprises utilization of the interrogation data.
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公开(公告)号：WO2021164142A1
公开(公告)日：2021-08-26
申请号：PCT/CN2020/091242
申请日：2020-05-20
Applicant: 中国科学技术大学
Abstract: 公开了一种基于氮空位色心的传感器及其制备方法。所述基于氮空位色心的传感器包括：电路板；所述电路板上设置有电极；音叉器件；所述音叉器件的第一端与电路板的电极电气连接；连接梁；所述连接梁设置于与所述第一端相对的所述音叉器件的第二端；所述连接梁能够透过氮空位色心所发出的荧光及激发氮空位色心的激光；金刚石基片；所述金刚石基片包括第一面和与所述第一面相对的第二面，所述第一面设置有金刚石纳米柱波导阵列，所述第二面与连接梁相连接；所述金刚石纳米柱波导上设置有氮空位色心。
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14.发明申请
公开(公告)号：WO2021154186A1
公开(公告)日：2021-08-05
申请号：PCT/TR2021/050076
申请日：2021-01-27
Applicant: BOGAZICI UNIVERSITESI
Inventor： KOCATURK, Ozgur
Abstract: The invention is a system comprising a biopsy needle (100) that has at least one body (110) for inserting into the body so as to be used in biopsy processes carried out under MRI. Whereas, it comprises at least one marker conductor (120) provided in said body (110) so as to generate magnetic field when electric current passes through the same, a power source (400) configured to provide electrical current to said marker conductor (120).
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公开(公告)号：WO2021102593A1
公开(公告)日：2021-06-03
申请号：PCT/CL2019/050124
申请日：2019-11-29
Applicant: PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE
Inventor： MUÑOZ TAVERA, Enrique Javier , GONZALEZ PAVEZ, Ivan Alonso , MAZE RIOS, Jerónimo , TAVAKOLI DINANI, Hossein , SANTIBAÑEZ CISTERNAS, Vicente Andres , GONZÁLEZ BROUWER, Raul Manuel
Abstract: La presente invención está dirigida a un sistema para la determinación y cuantificación de la concentración de un analito presente en una muestra, que comprende un sensor basado en diamante que contiene centros de color ópticamente activos cercanos a la superficie, una cámara o celda que aloja al diamante y medios para hacer ingresar la muestra al sistema. Además, la presente invención se refiere a un método de medición de un analito presente en una muestra que lo contiene, el cual se realiza en el sistema desarrollado; y al uso de dicho sensor.
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Patent Agency Ranking
公开(公告)号：WO2021083767A1
公开(公告)日：2021-05-06
申请号：PCT/EP2020/079642
申请日：2020-10-21
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： VISSER, Cornelis, Gerardus , DOODEMAN, Gerardus, Johannes, Nicolaas , KLEIJNEN, Mark, Peter, Paul , VAN PELT, Jeroen
Abstract: A sensing unit for use in-body comprises a variable impedance circuit for connection to the distal end of a transmission line and reflecting a carrier signal received from the transmission line. The variable impedance circuit comprises a variable impedance component having an impedance which varies non-linearly with applied voltage, a sensor for generating a voltage in response to a stimulus and a voltage bias system for creating a voltage bias for the variable impedance component. The voltage bias sets the operation point of the variable impedance component, such that the voltage changes from the sensor change the impedance of the variable impedance component non-linearly.
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公开(公告)号：WO2021071561A1
公开(公告)日：2021-04-15
申请号：PCT/US2020/036741
申请日：2020-06-09
Applicant: CLEARPOINT NEURO, INC.
Inventor： PIFERI, Peter G.
Abstract: Devices for transferring fluid to or from a subject include an extension tube assembly with an axially extending inner tube configured to couple to an elongate tubular cannula having opposing proximal and distal ends with an axially extending lumen and an axially extending inner tube. The inner tube extending through the tubular cannula defines an exposed needle tip and is in fluid communication with the inner tube of the extension tube assembly. The needle tip extends out of a distal end of the tubular cannula a suitable distance.
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18.发明申请
公开(公告)号：WO2021037913A1
公开(公告)日：2021-03-04
申请号：PCT/EP2020/073854
申请日：2020-08-26
Applicant: NANONORD A/S
Abstract: A method of and a system for determining fat concentration in a flowable sample. The method comprises a number of steps including adding a relaxation agent to the flowable sample, subjecting the sample to excitation in an NMR spectrometer to produce a free induction decay 1H NMR signal, generating data of at least a part of the 1H NMR signal comprising TD (time-domain) data representing signal dependence on T1 or T2, selecting a slow-relaxation TD data portion representing signal dependence on long T1 or long T2 in the generated TD data, determining a 1H NMR signal intensity from the slow-relaxation TD data portion, and correlating the determined 1H NMR signal intensity to a standard curve of 1H NMR signals relative to known fat concentrations.
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公开(公告)号：WO2021037169A1
公开(公告)日：2021-03-04
申请号：PCT/CN2020/111868
申请日：2020-08-27
Applicant: 创领心律管理医疗器械（上海）有限公司
Abstract: 本发明提供一种滤波电路及电子装置，具有依次连接的差共模滤波模块、差模滤波模块和共模滤波模块，能够对MRI过程中产生的射频信号或EMC测试中的电磁波干扰信号等提供良好的抑制效果，且电路结构简单，占用空间小；而且还能够平衡输入阻抗，提升共模、差模抑制性能，提高实际信号的感测或输出效果；此外，滤波电路输出的信号完全是共模信号，不会在阳极输出端和阴极输出端之间产生射频干扰信号引起的电位差，也就没有射频干扰信号引起的电流流过后级电路的负载，由此有利于提高滤波电路的输出端连接的后级电路进一步对射频干扰信号的抑制衰减效果。
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20.发明申请
公开(公告)号：WO2021028278A1
公开(公告)日：2021-02-18
申请号：PCT/EP2020/071945
申请日：2020-08-05
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： CHAUDHURY, Sudipta , SISODIA, Rajendra, Singh , WEISS, Steffen
Abstract: Provided is an optical metal detector device (10) for preparing magnetic resonance imaging, MRI, comprising: a light source (11) configured to emit light to illuminate a subject (S), a camera (12) configured to be positioned in multiple different positions relative to the subject, to capture a series of images of the illuminated subject and to provide assigned image signals, a linear polarizer (13) configured to be arranged in at least a first angular position and a second angular position relative to the subject, the first angular position and the second angular position are different to each other, and to polarize the light emitted by the light source or to polarize the image captured by the camera, and a data processing means (14) configured to obtain at least the image signals from the camera, wherein the data processing means is further configured to combine the image signals associated with the first angular position and the second angular position of the linear polarizer and the image signals associated with one or more of the multiple different positions of the camera to obtain a combined signal and to compare the combined signal with a threshold indicating a quantity of foreign metal objects on the subject. Thereby, combining the image signals with each other comprises a convolution operation.
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