公开(公告)号：US20240264008A1

公开(公告)日：2024-08-08

申请号：US18626378

申请日：2024-04-04

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Michael Grass ,  Juergen Erwin RAHMER ,  Bernhard GLEICH

IPC: G01K7/36 ,  A61B1/00 ,  A61B5/00 ,  A61B5/0215 ,  A61B5/05 ,  A61B5/06 ,  A61B34/20 ,  A61B90/00 ,  G01K1/26 ,  G01K13/04 ,  G01L9/00

CPC classification number: G01K7/36 ,  A61B1/00158 ,  A61B5/0215 ,  A61B5/02152 ,  A61B5/05 ,  A61B5/062 ,  A61B5/6851 ,  A61B5/6852 ,  A61B34/20 ,  A61B90/36 ,  A61B90/39 ,  G01K1/26 ,  G01K13/04 ,  G01L9/0001 ,  G01L9/007 ,  A61B5/02158 ,  A61B2034/2051 ,  A61B2034/2072 ,  A61B2090/3958 ,  A61B2090/3966 ,  A61B2562/0223

Abstract: The invention relates to a marker device and a tracking system for tracking the marker device, wherein the marker device comprises a rotationally oscillatable magnetic object and wherein the rotational oscillation is excitable by an external magnetic field, i.e. a magnetic field which is generated by a magnetic field providing unit 20, 31 that is located outside of the marker device. The rotational oscillation of the magnetic object induces a current in coils, wherein based on these induced currents the position and optionally also the orientation of the marker device is determined. This wireless kind of tracking can be carried out with relatively small marker devices, which can be placed, for instance, in a guidewire, the marker devices can be read out over a relatively large distance and it is possible to use a single marker device for six degrees of freedom localization.

公开(公告)号：US12053334B2

公开(公告)日：2024-08-06

申请号：US17279269

申请日：2019-09-20

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Michael Grass ,  Dirk Schaefer ,  Christian Haase ,  Wade Allen Bowe

IPC: A61B90/00 ,  A61B6/00

CPC classification number: A61B90/37 ,  A61B6/00 ,  A61B2090/365 ,  A61B2090/3762

Abstract: The present invention relates to a device (1) for providing image data during an extraction procedure for extracting a lead from the body of a subject using an extraction device (7). The device comprises an input (2) for receiving live x-ray projection image data of the lead during the extraction procedure and for receiving three-dimensional image data as acquired before the extraction procedure. A processing unit (3) determines a position of the extraction device (7) in the three-dimensional image data by detecting the position in the live projection image data during the procedure and correlates this position in the live projection image data with the position in the three-dimensional image data. An output (4) generates an image of a cross-sectional view of the lead and/or its surrounding body structure at the determined position based on the three-dimensional image data.

公开(公告)号：US12042249B2

公开(公告)日：2024-07-23

申请号：US18217713

申请日：2023-07-03

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Christian Haase ,  Michael Grass ,  Bram Antonius Philomena Van Rens ,  Roland Wilhelmus Maria Bullens ,  Peter Maria Johannes Rongen ,  Arjen Van Der Horst ,  Raoul Florent ,  Romane Isabelle Marie-Bernard Gauriau ,  Javier Olivan Bescos ,  Holger Schmitt ,  Vincent Maurice André Auvray

IPC: G06K9/00 ,  A61B5/02 ,  A61B5/021 ,  A61B5/026 ,  A61B5/107 ,  A61B6/00 ,  G06T7/62

CPC classification number: A61B5/02007 ,  A61B5/021 ,  A61B5/026 ,  A61B5/1075 ,  A61B6/5217 ,  G06T7/62 ,  A61B5/1079 ,  G06T2207/10116 ,  G06T2207/30104

Abstract: An apparatus for determining a functional index for stenosis assessment of a vessel is provided. The apparatus comprises an input interface (40) and a processing unit (50). The input interface is configured to obtain image data (30) representing a two-dimensional representation of a vessel (6). The processing unit (50) is configured to determine a course of the vessel (6) and a width (w1, w2) of the vessel along its course in the image data and is further configured to determine the functional index for stenosis assessment of the vessel based on the width of the vessel in the image data.

公开(公告)号：US12029607B2

公开(公告)日：2024-07-09

申请号：US17903076

申请日：2022-09-06

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Christian Haase ,  Michael Grass

IPC: A61B8/06 ,  A61B5/026 ,  A61B8/00 ,  A61B8/12

CPC classification number: A61B8/06 ,  A61B8/12 ,  A61B8/445 ,  A61B5/026

Abstract: The invention relates to a blood flow determination apparatus (5) comprising a speckle density determination unit (7) for determining a speckle density value being indicative of a level of a speckle density in an ultrasound image of an inner lumen of a blood vessel, which has been generated at an imaging location being behind an introduction location at which a fluid has been introduced into the blood vessel (20) with a known volumetric fluid flow rate. A blood flow rate determination unit (8) determines a blood flow value being indicative of a volumetric blood flow rate based on the determined speckle density value and the volumetric fluid flow rate. This allows determining the intravascular blood flow with an improved accuracy.

公开(公告)号：US11744553B2

公开(公告)日：2023-09-05

申请号：US16336496

申请日：2017-09-29

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Thomas Heiko Stehle ,  Frank Michael Weber ,  Christian Buerger ,  Irina Waechter-Stehle ,  Jörg Sabczynski ,  Michael Grass

IPC: A61B8/00 ,  A61B8/08 ,  G01S15/89 ,  G01S7/52

CPC classification number: A61B8/4494 ,  A61B8/0825 ,  A61B8/4209 ,  A61B8/4254 ,  G01S15/8934 ,  G01S15/8952 ,  G01S7/52079

Abstract: An ultrasound system is disclosed comprising an ultrasound transducer array (100) comprising a plurality of ultrasound transducer cells (130), each of said cell having an independently adjustable position and/or orientation such as to conform an ultrasound transmitting surface of the cell to a region of a body and a controller (140). The controller is configured to register the respective ultrasound transducer cells by simultaneously operating at least two ultrasound transducer cells in a transmit mode in which the cells transmit distinguishable ultrasound signals and operating the remaining ultrasound transducer cells in a receive mode. The controller extracts time-of-flight information of the respective ultrasound signals between transmitter and receiver and by systematically selecting different ultrasound transducer cells as transmitters, the controller collects sufficient time-of-flight information from which the respective position and/or relative orientation of the ultrasound transducer cells within the ultrasound transducer array may be derived. A method for operating the ultrasound system in this manner as well as a computer program product is also disclosed.

公开(公告)号：US11744532B2

公开(公告)日：2023-09-05

申请号：US17282027

申请日：2019-09-27

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Michael Grass ,  Roland Proksa

IPC: A61B6/00 ,  A61B6/03 ,  G01N23/046 ,  G06T11/00 ,  A61B6/02 ,  G06T7/10 ,  G06T7/30

CPC classification number: A61B6/4241 ,  A61B6/025 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4035 ,  G01N23/046 ,  G06T7/10 ,  G06T7/30 ,  G06T11/003 ,  G01N2223/423 ,  G06T2207/10081

Abstract: The invention refers to a system for providing a spectral image using a conventional CT system. The system comprises a data providing unit (11) for providing first projection data and second projection data, wherein the first and second projection data have been acquired using different acquisition spectra, wherein the first projection data has been acquired during a scout scan and the second projection data has been acquired during a diagnostic scan, or wherein the first and second projection data have been acquired by a first and second part of the detector, respectively. The first and second part of the detector acquire projection data with different acquisition spectra. A spectral image generation unit (12) generates a spectral image based on the projection data. With this system a spectral image can be provided using a conventional CT system with a decreased acquisition time.

公开(公告)号：US11664128B2

公开(公告)日：2023-05-30

申请号：US16647799

申请日：2018-09-12

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Christian Haase ,  Holger Schmitt ,  Michael Grass ,  Arjen Van Der Horst

IPC: G06T7/00 ,  G16H50/30 ,  G16H30/40 ,  G06F30/28

CPC classification number: G16H50/30 ,  G06F30/28 ,  G06T7/0012 ,  G16H30/40 ,  G06T2207/10081

Abstract: An apparatus for assessing a patient's vasculature and a corresponding method identify the bifurcations in a vessel of interest on the basis of a local change in at least one geometric parameter value of the vessel of interest and adjust the fluid dynamics inside the vessel of interest to take account for said bifurcations.

公开(公告)号：US11253217B2

公开(公告)日：2022-02-22

申请号：US15761056

申请日：2016-09-15

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Michael Grass ,  Dirk Schaefer ,  Arjen Van Der Horst

IPC: G06T7/60 ,  A61B5/107 ,  A61B6/00 ,  A61B6/12 ,  G06T7/246 ,  A61B5/0265

Abstract: A three-dimensional morphological vessel model (20) can be obtained by assigning diameters (14,15) along the vessel derived from a two-dimensional morphological projection (10) at locations in the three-dimensional model defined by the temporal locations (21,22) of a trackable instrument (5). An apparatus (7), a system (1) and a method (100) for use of the system (1) in characterizing the vessel of a living being (2) by rendering a three-5 dimensional morphological vessel model (20) are presented.

公开(公告)号：US11179043B2

公开(公告)日：2021-11-23

申请号：US16338290

申请日：2017-10-02

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Christian Haase ,  Michael Grass ,  Bram Antonius Philomena Van Rens ,  Roland Wilhelmus Maria Bullens ,  Peter Maria Johannes Rongen ,  Arjen Van Der Horst ,  Raoul Florent ,  Romane Isabelle Marie-Bernard Gauriau ,  Javier Olivan Bescos ,  Holger Schmitt ,  Vincent Maurice André Auvray

IPC: A61B5/02 ,  G06T7/62 ,  A61B5/021 ,  A61B5/026 ,  A61B5/107 ,  A61B6/00

Abstract: An apparatus for determining a functional index for stenosis assessment of a vessel is provided. The apparatus comprises an input interface (40) and a processing unit (50). The input interface is configured to obtain image data (30) representing a two-dimensional representation of a vessel (6). The processing unit (50) is configured to determine a course of the vessel (6) and a width (w1, w2) of the vessel along its course in the image data and is further configured to determine the functional index for stenosis assessment of the vessel based on the width of the vessel in the image data.

公开(公告)号：US11141123B2

公开(公告)日：2021-10-12

申请号：US15532968

申请日：2015-12-01

Applicant: Koninklijke Philips N.V.

Inventor： Hanno Heyke Homann ,  Michael Grass ,  Raoul Florent ,  Holger Schmitt ,  Odile Bonnefous ,  Hannes Nickisch

IPC: A61B6/00 ,  A61M5/00 ,  G06T7/00 ,  G06T7/254 ,  G16H30/40 ,  G16H50/50 ,  A61B6/03 ,  A61B5/026

Abstract: The present invention relates to a device (1) for fractional flow reserve determination. The device (1) comprises a model generator (10) configured to generate a three-dimensional model (3DM) of a portion of an imaged vascular vessel tree (VVT) surrounding a stenosed vessel segment (SVS), based on a partial segmentation of the imaged vascular vessel tree (VVT). Further, the device comprises an image processor (20) configured to calculate a blood flow (Q) through the stenosed vessel segment (SVS) based on an analysis of a time-series of X-ray images of the vascular vessel tree (VVT). Still further, the device comprises a fractional-flow-reserve determiner (30) configured to determine a fractional flow reserve (FFR) based on the three-dimensional model (3DM) and the calculated blood flow.