公开(公告)号：US11360169B2

公开(公告)日：2022-06-14

申请号：US16967775

申请日：2019-01-28

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Timothy Ortiz ,  Tracy Allyn Wynn ,  Olli Tapio Friman

IPC分类号： G01R33/36

摘要： A magnetic resonance (MR) receive device comprises a coil or coil array including at least one radiofrequency (RF) coil element wherein each RF coil element comprises a coil and a preamplifier connected to amplify an output of the RF coil element to generate an amplified RF signal. The MR receive device further includes an RF-over-Fiber module comprising an optical fiber, a photonic device optically coupled to send an optical signal into the optical fiber, and an RF modulator connected to modulate the optical signal by an MR signal comprising the amplified RF signal.

公开(公告)号：US20220079526A1

公开(公告)日：2022-03-17

申请号：US17419332

申请日：2019-12-23

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Olli Tapio Friman

IPC分类号： A61B5/00 ,  A61B5/11 ,  A61B5/055

摘要： A headrest (10) for an imaging device (24) includes a base (12); a head cradle (14) having a pivot connection (16) or rolling connection (18) with the base; and a sensor (22) configured to measure a pivot angle (θ) of the head cradle about a pivot axis (A) of the pivot connection of the head cradle with the base or a roll position (P) of the rolling connection of the head cradle with the base.

公开(公告)号：US10539635B2

公开(公告)日：2020-01-21

申请号：US15767837

申请日：2016-10-11

申请人： KONINKLIJKE PHILIPS N.V.

发明人： George Randall Duensing ,  Ron Kosal ,  Tracy Wynn ,  Olli Tapio Friman

IPC分类号： G01V3/00 ,  G01R33/34 ,  G01R33/3415 ,  A61B5/055

摘要： A radio-frequency (RF) coil apparatus for magnetic resonance (MR) systems (100, 200, 300, 400, 500, 600, 700, 900, 1000) includes a base (102, 502, 702, 902, 1002) having opposed sides (121), a surface (124) to support an object of interest (OOI) for scanning, and fasteners (127) situated at the opposed sides, A positioner (104, 304A, 304B, 504, 604, 704, 1004) is configured to be releasably attached to the base and has a body (130) extending between opposed ends and fasteners (134,) situated at the opposed ends of the body, The body is configured to form an arch between the opposed ends. An upper section (106, 606, 706, 906, 1006) has at least one RF coil array (142) for acquiring induced MR signals, and is configured to be positioned over the positioner.

公开(公告)号：US10895616B2

公开(公告)日：2021-01-19

申请号：US16085626

申请日：2017-03-22

申请人： KONINKLIJKE PHILIPS N.V.

发明人： George Randall Duensing ,  Olli Tapio Friman

IPC分类号： G01R33/36 ,  G01R33/28 ,  A61B5/055 ,  G01R33/3415

摘要： An apparatus includes a takeup spool disposed at a far end of a magnetic resonance imaging bore. The takeup spool is adapted to release optical fiber, and to retract the optical fiber. The apparatus also comprises a dongle configured to connect to a terminal end of the optical fiber.

公开(公告)号：US10895615B2

公开(公告)日：2021-01-19

申请号：US16343460

申请日：2017-10-18

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Tracy Wynn ,  Aasrith Ganti ,  Olli Tapio Friman ,  Christopher Spencer

IPC分类号： G01R33/36 ,  G01R33/3415 ,  G01R33/34

摘要： A balun is provided that is suitable for use with miniature coaxial cables and that obviates the need to cut the cable in order to install the balun. A portion of each coaxial cable that extends from the RF receive coils to the RF receiver is wound multiple times around a device to form an inductor. The inductor may be used with or without a separate resonant circuit. If used with a separate resonant circuit, the inductor and the resonant circuit couple with one another to generate a coupled impedance that provides common-mode noise suppression at the frequency of interest. If used without a separate resonant circuit, the inductor formed in the cable provides an inductance and the capacitance between the windings coupled with the inductance provides a series impedance that suppresses common-mode noise at the frequency of interest.