公开(公告)号：US11536787B2

公开(公告)日：2022-12-27

申请号：US16063305

申请日：2016-12-21

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Peter Forthmann ,  Jerry Alden ,  Thomas Erik Amthor ,  Jeffrey Edward Leach ,  Joseph C. Testa

IPC: G01R33/385 ,  H01F41/071

Abstract: A magnetic field z-gradient coil is manufactured by inserting elements (38) into openings (36) on an outside of an insulating carrier (32), wrapping an electrical conductor turn (34) around the outside of the insulating carrier with one side of the wrapped electrical conductor alongside elements inserted into openings on the outside of the insulating carrier, removing the elements alongside the one side of the wrapped electrical conductor from the openings, and repeating to wrap conductor turns of a z-gradient coil (20) around the electrically insulating carrier. A transverse magnetic field gradient coil is manufactured by laying electrical conductor (44) onto a mold (50) with a keying feature (46, 46a) extending along the conductor engaging a mating keying feature (52, 52a) of the mold that defines a winding pattern (56), attaching an insulating back plate (58) to the resulting coil section opposite from the mold, and removing the mold.

公开(公告)号：US10412377B2

公开(公告)日：2019-09-10

申请号：US15403432

申请日：2017-01-11

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Peter Forthmann ,  Glen Pfleiderer

IPC: H04N13/344 ,  G06F3/01 ,  H04N13/239 ,  H04N13/383 ,  A61B6/00 ,  G06F3/0481 ,  G06T3/00 ,  G06T11/60 ,  H04N5/232 ,  A61B6/03 ,  H04N5/222

Abstract: An augmented reality device used in a medical imaging laboratory housing a medical imaging device (10) includes a headset (30), cameras (32, 33) mounted in the medical imaging laboratory, and directional sensors (34, 35, 36, 37) mounted on the headset. The cameras generate a panorama image (54). Data collected by the directional sensors is processed to determine the viewing direction (60). The panorama image and the determined viewing direction are processed to generate an augmented patient view image (80) in which the medical imaging device is removed, replaced, or made partially transparent, the augmented image is presented on a display (40) of the headset. The directional sensors may include a headset camera (34) that provides a patient view image (50), which is augmented by removing or making partially transparent any portion of the medical imaging device in the patient view image by substituting corresponding portions of the panorama image.

公开(公告)号：US10307616B2

公开(公告)日：2019-06-04

申请号：US15029343

申请日：2014-10-08

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Erkki Tapani Vahala ,  Thomas Erik Amthor ,  Peter Forthmann

IPC: A61N5/10 ,  A61B90/00

Abstract: A medical apparatus (100, 300, 400, 800) includes a magnetic resonance imaging system (104), a radiation therapy device (102) having a gantry (106) and a radiation source (110). A radiation detection system (102) measures radiation detection data (174) descriptive of a path and intensity of a radiation beam at an intersection of the radiation beam with at least one surface (144, 144′, 144″) surrounding the subject using at least one radiation detector (144, 144′, 144″). Execution of machine readable instructions causes a processor controlling the medical apparatus to: receive (200) a treatment plan (168), acquire (202) magnetic resonance data (164) from the imaging zone using the magnetic resonance imaging system, generate (204) radiation therapy device control commands (172) using the magnetic resonance data and the treatment plan, irradiate (206) the target zone by controlling the radiation therapy device using the radiation therapy device control commands, measure (208) the radiation detection data during irradiation, and determine a time dependent radiation beam path (176) and a time dependent radiation beam intensity (178) using the radiation detection data.

公开(公告)号：US20140249401A1

公开(公告)日：2014-09-04

申请号：US14350830

申请日：2012-10-03

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Johan Samuel Van Den Brink ,  Paul Royston Harvey ,  Peter Forthmann ,  Christoph Leussler ,  Peter Vernickel ,  Jan Hendrik Wülbern ,  Ingmar Graesslin

IPC: G01R33/31 ,  G01R33/44 ,  A61B5/055

CPC classification number: G01R33/31 ,  A61B5/055 ,  A61B2090/3954 ,  A61F7/10 ,  A61F2007/0056 ,  A61F2007/0086 ,  G01R33/28 ,  G01R33/288 ,  G01R33/44 ,  G01R33/4804

Abstract: The invention provides an apparatus (1) for magnetic resonance (MR) examination of a subject (S), comprising: an examination region (3) for accommodating the subject (S) during the MR examination; a radio-frequency system (5) for transmission of a radio-frequency (RF) signal or field into the examination region (3) during the MR examination; and a temperature control system (6) for controlling the temperature of the subject (S) in the examination region (3) during the examination. The temperature control system (6) is configured to actively control or regulate an environment of the subject (S), and thereby the temperature or thermal comformt of the subject (S) based upon a detected and/or an expected temperature of the subject (S) during the MR examination. The invention also provides a method of controlling thermal comfort of the subject (S) during an examination of the subject (S) in a MR apparatus (1), comprising the steps of: estimating and/or detecting a temperature of the subject (S) during the MR examination, and actively controlling or regulating the environment of the subject (S) based upon the estimated and/or detected temperature of the subject (S) during the MR examination.

Abstract translation: 本发明提供一种用于对象（S）的磁共振（MR）检查的装置（1），包括：用于在MR检查期间容纳对象（S）的检查区域（3） 用于在MR检查期间将射频（RF）信号或场传送到检查区域（3）的射频系统（5）; 以及用于在检查期间控制检查区域（3）中的被检体（S）的温度的温度控制系统（6）。 温度控制系统（6）被配置为基于被检体（S）的检测和/或预期温度来主动地控制或调节受试者（S）的环境，从而对受试者（S）的温度或热合并， S）。 本发明还提供了一种在MR装置（1）中检查对象（S）期间控制对象（S）的热舒适度的方法，包括以下步骤：估计和/或检测受试者的温度（S ），并且在MR检查期间基于被检体（S）的估计和/或检测到的温度来主动地控制或调节受试者（S）的环境。

公开(公告)号：US20240290525A1

公开(公告)日：2024-08-29

申请号：US18568402

申请日：2022-06-02

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Peter Forthmann ,  Philippe Abel Menteur

IPC: H01F6/06 ,  F16K31/08 ,  G01R33/38 ,  G01R33/3815 ,  H01F6/04

CPC classification number: H01F6/06 ,  F16K31/082 ,  G01R33/3804 ,  G01R33/3815 ,  H01F6/04

Abstract: The invention relates to a system for controlling a superconducting coil (6) with a magnetic persistent current switch (7). The magnetic persistent current switch (7) is used for switching the superconducting coil (6) between a persistent mode and a ramp mode, respectively. The system further comprises a heat exchanger (10) configured to disperse heat to a cryocooler (3), a loop tube (13) configured to enable flow of coolant to transfer thermal energy generated by the magnetic persistent current switch (7) to the heat exchanger (10), and a thermal switch (9) comprising a valve (14) integrated with the loop tube (13) between the magnetic persistent current switch (7) and the heat exchanger (10), the valve (14) comprising a valve body (15) with and inlet (16) and an outlet (17) with which the valve body (15) is connected to the loop tube (13), a movable shaft (18) which is arranged inside the valve body (15) and which comprises a permanent rod magnet (19), a latching arrangement (20) which comprises a permanent magnet (21), and a solenoid (22), wherein the shaft (18) is movable between a closed position in which the shaft (18) effects the closing of the inlet (16) or the outlet (17) of the valve body (15) and therefore no flow of coolant through the valve body is allowed, and an open position in which the inlet (16) and the outlet (17) of the valve body (15) are open and therefore flow of coolant through the valve body (15) is allowed, the solenoid (22) is arranged relative to the shaft (18) in such a way that by applying a current pulse with a first polarity to the solenoid (22) the shaft (18) is moved to the closed position, and by applying a current pulse with a second polarity to the solenoid (22), the second polarity being opposite to the first polarity, the shaft (18) is moved to the open position, and the latching arrangement (20) is arranged relative to the shaft (18) in such a way that the magnetic force acting from the permanent magnet (21) of the latching arrangement (20) to the permanent magnet (19) of the shaft (18) forces the shaft (18) to stay in the closed position or in the open position, respectively, as long as no current pulse is applied to the solenoid (22) for switching the shaft (18) from the closed position to the open position or vice versa, respectively. In this way, a cooling system is provided that allows the temperature of the magnet persistent current switch (7) to rise and fall as desired within a short period of time, without straining the cooling system for the superconducting coil (7).

公开(公告)号：US11656307B2

公开(公告)日：2023-05-23

申请号：US17598331

申请日：2020-03-20

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Thomas Erik Amthor ,  Peter Forthmann

IPC: G01R33/385 ,  G01R33/3815

CPC classification number: G01R33/3854 ,  G01R33/3815

Abstract: The invention provides for a magnetic resonance imaging system component. The magnetic resonance imaging system component comprises an acoustic shield (124) for a magnetic resonance imaging cylindrical magnet assembly (102). The acoustic shield comprises a cylindrical portion (125) configured for being inserted into a bore (106) of the magnetic resonance imaging cylindrical magnet assembly and for completely covering the bore of the magnetic resonance imaging system. The cylindrical portion comprises a smooth exposed surface (126) configured for facing away from the magnetic resonance imaging cylindrical magnet assembly. The cylindrical portion further comprises an attachment surface (127). The acoustic shield further comprises an acoustic metamaterial layer (128) attached to the attachment surface.

公开(公告)号：US11344218B2

公开(公告)日：2022-05-31

申请号：US15546310

申请日：2016-01-14

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Julien Senegas ,  Daniel Wirtz ,  Sascha Krueger ,  Vincent Jeanne ,  Thirukumaran Thangaraj Kanagasabapathi ,  Joerg Sabczynski ,  Peter Forthmann

IPC: A61B5/055 ,  A61B5/00 ,  A61B5/107 ,  A61B5/11 ,  G01R33/28 ,  G01R33/32 ,  G01R33/54 ,  G06T7/00 ,  A61B6/00 ,  A61B5/113

Abstract: A contact-free method of determining biometric parameters and physiological parameters of a subject of interest (20) to be examined by a medical imaging modality (10), comprising steps of taking (72) a picture by a first digital camera (52) including a total view of an examination table (44); applying (74) a computer vision algorithm or an image processing algorithm to the picture for determining a biometric parameter of the subject of interest (20) in relation to the examination table (44); taking (78) at least one picture with a second digital camera (58), whose field of view (60) includes a region of the subject of interest (20) that is related to the at least one determined biometric parameter; using data indicative of the determined biometric parameter to identify (82) a subset of pixels of the at least one picture taken by the second digital camera (58) that define a region of interest (64) from which at least one physiological parameter of the subject of interest (20) is to be determined, taking (84) a plurality of pictures of the region of the subject of interest (20) with the second digital camera (58), and applying (86) a computer vision algorithm or an image processing algorithm to pictures of the plurality of pictures taken by the second digital camera (58) for calculating the region of interest (64) in the pictures of the plurality of pictures for determining the physiological parameter of the subject of interest (20) during examination; a camera system (50) for determining, in a contact-free way, biometric parameters and physiological parameters of a subject of interest (20) to be examined by use of a medical imaging modality (10) and using such method; and—a medical imaging modality (10) configured for acquisition of scanning data of at least a portion of a subject of interest (20), the medical imaging modality (10) comprising such camera system.

公开(公告)号：US11274857B2

公开(公告)日：2022-03-15

申请号：US15778082

申请日：2016-11-24

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Thomas Erik Amthor ,  Miha Fuderer ,  Gerardus Bernardus Jozef Mulder ,  Christoph Leussler ,  Peter Forthmann ,  Philippe Abel Menteur

IPC: F25B9/14 ,  F25B9/10 ,  F25D19/00 ,  H01F6/04

Abstract: A cryogenic cooling system (10) comprising a cryostat (12), a two-stage cryogenic cold head (24) and at least one thermal connection member (136; 236; 336; 436) that is configured to provide at least a portion of a heat transfer path (138; 238; 338; 438) from the second stage member (30) to the first stage member (26) of the two-stage cryogenic cold head (24). The heat transfer path (138; 238; 338; 438) is arranged outside the cold head (24). A thermal resistance of the provided at least portion of the heat transfer path (138; 238; 338; 438) at the second cryogenic temperature is larger than a thermal resistance of the provided at least portion of the heat transfer path (138; 238; 338; 438) at the first cryogenic temperature.

公开(公告)号：US10894174B2

公开(公告)日：2021-01-19

申请号：US15777929

申请日：2016-12-01

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Peter Forthmann ,  Philip Alexander Jonas ,  Johannes Adrianus Overweg

IPC: A61N5/10 ,  G01R33/38 ,  G01R33/3815 ,  G01R33/48 ,  A61B5/055

Abstract: The following relates generally to use of magnetic resonance (MR) imaging as guidance in radiation therapy, and more specifically to use of MR imaging as guidance in proton therapy. In some embodiments, a cryogenic dewar is provided with multiple channels allowing a proton beam from a proton beam source to pass through. The proton beam may first be aligned with a first channel, and the dewar may then be rotated along with the proton source. The dewar may then be rotated to align a second channel with the proton beam.

公开(公告)号：US09891298B2

公开(公告)日：2018-02-13

申请号：US15688047

申请日：2017-08-28

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Johannes Adrianus Overweg ,  Thomas Erik Amthor ,  Peter Forthmann ,  Falk Uhlemann ,  Bernd David

IPC: H01F1/00 ,  G01R33/36 ,  H01F6/06 ,  G01R33/3815 ,  G01R33/34 ,  H01F6/00 ,  H01H36/00

CPC classification number: G01R33/3642 ,  G01R33/34 ,  G01R33/3815 ,  H01F6/008 ,  H01F6/06 ,  H01F6/065 ,  H01H36/008

Abstract: The invention provides for magnetic resonance imaging system (600) comprising a superconducting magnet (100) with a first current lead (108) and a second current lead (110) for connecting to a current ramping system (624). The magnet further comprises a vacuum vessel (104) penetrated by the first current lead and the second current lead. The magnet further comprises a magnet circuit (106) within the vacuum vessel. The magnet circuit has a first magnet circuit connection (132) and a second magnet circuit connection (134). The magnet further comprises a first switch (120) between the first magnet connection and the first current lead and a second switch (122) between the second magnet connection and the second current lead. The magnet further comprises a first current shunt (128) connected across the first switch and a second current shunt (130) connected across the second switch. The magnet further comprises a first rigid coil loop (124) operable to actuate the first switch. The first rigid coil loop forms a portion of the first electrical connection. The magnet further comprises a second rigid coil loop (126) operable to actuate the second switch. The second rigid coil loop forms a portion of the second electrical connection.