Patents by Inventor Nenad Mihajlovic
Nenad Mihajlovic has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240065669Abstract: The present invention relates to an ultrasound system (10) comprising a first non-invasive ultrasound probe (14) configured to acquire first ultrasound data having a first field of view; a second invasive ultrasound probe (16) configured to acquire second ultrasound data having a second field of view which is different from the first field of view; a tracking unit (30) configured to determine tracking data comprising a position and orientation of the first non-invasive ultrasound probe (14) relative to the second invasive ultrasound probe (16); and a registration unit (32) configured to register the second field of view into the first field of view based on the tracking data.Type: ApplicationFiled: November 6, 2023Publication date: February 29, 2024Inventors: GERARDUS HENRICUS MARIA GIJSBERS, ALEXANDER KOLEN, HARM JAN WILLEM BELT, NENAD MIHAJLOVIC, JEAN-LUC FRANCOIS-MARIE ROBERT
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Patent number: 11839509Abstract: The present invention relates to an ultrasound system. A first non-invasive ultrasound probe receives first ultrasound data having a first field of view and a second invasive ultrasound probe receives second ultrasound data having a second field of view which is different from the first field of view. A tracking unit determines tracking data including a position and orientation of the first non-invasive ultrasound probe relative to the second invasive ultrasound probe. A registration unit registers the second field of view into the first field of view based on the tracking data.Type: GrantFiled: June 1, 2018Date of Patent: December 12, 2023Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Gerardus Henricus Maria Gijsbers, Alexander Franciscus Kolen, Harm Jan Willem Belt, Nenad Mihajlovic, Jean-Luc Francois-Marie Robert
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Patent number: 11766297Abstract: An apparatus that detects a tip of an interventional tool based on at least two ultrasound images reconstructed for different beam steering angles within a volumetric region that includes the tool. The apparatus includes an image processor. The image processor includes a tip detection module used to perform a tip tool detection procedure. The tip tool detection procedure involves identifying shadow regions of the tool in the at least two ultrasound images and determining the position of the tip of the tool within the volumetric region.Type: GrantFiled: September 18, 2017Date of Patent: September 26, 2023Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Maarten Petrus Joseph Kuenen, Nenad Mihajlovic, Arash Pourtaherian
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Patent number: 11452495Abstract: The apparatus is adapted to detect a tool based on a 3D image obtained by a 3D ultrasound imaging system. The apparatus comprises an image processing unit, which includes a tool detection module configured to perform a tool detection procedure. The tool detection procedure involves identifying a shadow of the tool in the 3D image and calculating the position of a “tool plane section” of the 3D image in which the entire length of the tool is represented.Type: GrantFiled: December 5, 2016Date of Patent: September 27, 2022Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Arash Pourtaherian, Hendrikus Hubertus Maria Korsten, Nenad Mihajlovic, Jinfeng Huang, Peter Hendrik Nelis De With
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Publication number: 20220096044Abstract: An intravascular ultrasound device (12) comprising an array (16) of ultrasound transducer elements (18) which extends in a longitudinal (22) and annular (20) direction along and around the device body (14). The device includes control electronics which allow the array to driven either as a set of longitudinally oriented (28) subgroups of elements (e.g. each including one or more rows of the array), or as a set of annularly oriented subgroups (26) of elements (e.g. each including one or more columns of the array). By switching between these two different operation modes, two different functions can be performed using the same single unitary array of elements: either cross-sectional imaging in the longitudinal mode, or blood flow sensing in the annular mode.Type: ApplicationFiled: January 14, 2020Publication date: March 31, 2022Inventors: Martin Pekar, Nenad Mihajlovic, Antonia Cornelia van Rens
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Publication number: 20220039773Abstract: The invention provides a method for monitoring a location of a tool in an ultrasound image. The method includes acquiring a plurality of 2D ultrasound images by way of an ultrasound transducer, wherein at least one of the plurality of 2D ultrasound images comprises a part of the tool and generating a 3D ultrasound image from said plurality of 2D ultrasound images. A first location of the tool is then identified within the 3D ultrasound image. An additional 2D ultrasound image, and location information relating to the location of the ultrasound transducer during capture of the additional 2D ultrasound image, is then acquired and the 3D ultrasound image updated based on the additional 2D ultrasound image and the location information. A location of the tool with respect to the additional 2D ultrasound image is then identified within the updated 3D ultrasound image based only on imaging data of the updated 3D ultrasound image.Type: ApplicationFiled: September 11, 2019Publication date: February 10, 2022Inventors: Nenad Mihajlovic, Arash Pourtaherian, Michel Paul Barbara van Bruggen, Gary Cheng-How Ng
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Patent number: 11061000Abstract: Disclosed is an ultrasound probe that includes an array of CMUT (capacitive micromachined ultrasound transducer) cells. Each cell includes a substrate carrying a first electrode of an electrode arrangement. The substrate is spatially separated from a flexible membrane by a gap. The flexible membrane includes a second electrode of the electrode arrangement. The ultrasound probe also includes an acoustic window over the array of CMUT cells. The ultrasound probe further includes a data storage element accessible to an external control module of the ultrasound probe. The data storage element stores configuration information for configuring an operation of the array of CMUT cells in pre-collapse or collapse mode with the external control module to optimize the effective bandwidth of the array. Also disclosed is a calibration method of the ultrasound probe, an ultrasound system and a method of operating the ultrasound system.Type: GrantFiled: November 30, 2017Date of Patent: July 13, 2021Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Nenad Mihajlovic, Antonia Cornelia van Rens, Sergei Shulepov
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Patent number: 11051698Abstract: An optical microscopy probe for scanning microscopy imaging of object has a housing with an optical window at a side position at the distal end of the housing, and an optical guide having an objective lens rigidly coupled to an end portion of the optical guide. The optical guide is displaceably mounted in a transverse direction of the housing so as to enable optical scanning in a region of interest. A relay lens unit is rigidly mounted at the distal end of the probe and it has a first lens, a second lens and a mirror. The relay lens unit is optically arranged relative to the objective lens for allowing scanning microscopy through the optical window at the side of the distal end of the housing.Type: GrantFiled: October 31, 2012Date of Patent: July 6, 2021Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Bernardus Hendrikus Wilhelmus Hendriks, Waltherus Cornelis Bierhoff, Nenad Mihajlovic
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Publication number: 20200405263Abstract: The invention provides a system for determining an identification characteristic of a medical device carrying at least an ultrasound emitter/sensor element. The identification characteristic is based on a detection signal from the ultrasound emitter/sensor element upon a drive signal. The system can identify the medical device from a database of known medical devices. Furthermore, the system can update the duration and frequency of use of the medical device and it can prohibit further use of the medical device (when a predetermined limit of use is exceeded.Type: ApplicationFiled: September 14, 2020Publication date: December 31, 2020Inventors: Steven Antonie Willem FOKKENROOD, Aloysius Cornelis Johannes STROUCKEN, Harm Jan Willem BELT, Alexander Franciscus KOLEN, Nenad MIHAJLOVIC
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Publication number: 20200297303Abstract: The apparatus is adapted to detect a tool based on a 3D image obtained by a 3D ultrasound imaging system. The apparatus comprises an image processing unit, which includes a tool detection module configured to perform a tool detection procedure. The tool detection procedure involves identifying a shadow of the tool in the 3D image and calculating the position of a “tool plane section” of the 3D image in which the entire length of the tool is represented.Type: ApplicationFiled: December 5, 2016Publication date: September 24, 2020Inventors: ARASH POURTAHERIAN, HENDRIKUS HUBERTUS MARIA KORSTEN, NENAD MIHAJLOVIC, JINFENG HUANG, PETER HENDRIK NELIS DE WITH
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Patent number: 10772602Abstract: The invention provides a system (1) for determining an identification characteristic of a medical device (3) carrying at least an ultrasound emitter/sensor element (321). The identification characteristic is based on a detection signal from the ultrasound emitter/sensor element (321) upon a drive signal. The system (1) can identify the medical device from a database (211,511) of known medical devices. Furthermore, the system (1) can update the duration and frequency of use of the medical device (3) and it can prohibit further use of the medical device (3) when a predetermined limit of use is exceeded.Type: GrantFiled: November 24, 2015Date of Patent: September 15, 2020Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Steven Antonie Willem Fokkenrood, Aloysius Cornelis Johannes Stroucken, Harm Jan Willem Belt, Alexander Franciscus Kolen, Nenad Mihajlovic
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Publication number: 20200113540Abstract: The present invention relates to an ultrasound system (10) comprising a first non-invasive ultrasound probe (14) configured to acquire first ultrasound data having a first field of view; a second invasive ultrasound probe (16) configured to acquire second ultrasound data having a second field of view which is different from the first field of view; a tracking unit (30) configured to determine tracking data comprising a position and orientation of the first non-invasive ultrasound probe (14) relative to the second invasive ultrasound probe (16); and a registration unit (32) configured to register the second field of view into the first field of view based on the tracking data.Type: ApplicationFiled: June 1, 2018Publication date: April 16, 2020Inventors: Gerardus Henricus Maria GIJSBERS, Alexander Franciscus KOLEN, Harm Jan Willem BELT, Nenad MIHAJLOVIC, Jean-Luc Francois-Marie ROBERT
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Publication number: 20190310231Abstract: Disclosed is an ultrasound probe (10) including an array (110) of CMUT (capacitive micromachined ultrasound transducer) cells (100), each cell comprising a substrate (112) carrying a first electrode (122) of an electrode arrangement, the substrate being spatially separated from a flexible membrane (114) including a second electrode (120) of said electrode arrangement by a gap (118); an acoustic window (140) over the array of CMUT cells; and a data storage element (150) accessible to an external control module of the ultrasound probe. The data storage element stores configuration information for configuring an operation of the array of CMUT cells in pre-collapse or collapse mode with the external control module to optimize the effective bandwidth of the array. Also disclosed is a calibration method of the ultrasound probe, an ultrasound system and a method of operating the ultrasound system.Type: ApplicationFiled: November 30, 2017Publication date: October 10, 2019Inventors: Nenad Mihajlovic, Antonia Cornelia van Rens, Sergei Shulepov
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Publication number: 20190201110Abstract: The apparatus is adapted to detect a tip of an interventional tool based on at least two ultrasound images reconstructed for different beam steering angles within a volumetric region comprising said tool. The apparatus comprises an image processing unit, which includes a tip detection module configured to perform a tip tool detection procedure. The tip tool detection procedure involves identifying shadow regions of the tool in the at least two ultrasound images and calculating the position of the tip of the tool within the volumetric region.Type: ApplicationFiled: September 18, 2017Publication date: July 4, 2019Inventors: Maarten Petrus Joseph KUENEN, Nenad MIHAJLOVIC, Arash POURTAHERIAN
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Patent number: 10335192Abstract: A monitoring apparatus for monitoring an ablation procedure applied to an object comprises an ultrasound signal providing unit for providing an ultrasound signal. The ultrasound signal is produced by sending ultrasound pulses out to the object, by subsequently receiving dynamic echo series after the ultrasound pulses have been reflected by the object, and finally by generating the ultrasound signal depending on the received dynamic echo series, whereby ultrasound scattering properties of the object are determined that represent blood perfusion. The monitoring apparatus further comprises an ablation depth determination unit for determining an ablation depth from the provided ultrasound signal.Type: GrantFiled: April 15, 2011Date of Patent: July 2, 2019Assignee: Koninklijke Philips N.V.Inventors: Godefridus Antonius Harks, Fei Zuo, Szabolcs Deladi, Steven Antonie Willem Fokkenrood, Nenad Mihajlovic
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Publication number: 20170311925Abstract: The invention provides a system (1) for determining an identification characteristic of a medical device (3) carrying at least an ultrasound emitter/sensor element (321). The identification characteristic is based on a detection signal from the ultrasound emitter/sensor element (321) upon a drive signal. The system (1) can identify the medical device from a database (211,511) of known medical devices. Furthermore, the system (1) can update the duration and frequency of use of the medical device (3) and it can prohibit further use of the medical device (3) when a predetermined limit of use is exceeded.Type: ApplicationFiled: November 24, 2015Publication date: November 2, 2017Inventors: STEVEN ANTONIE WILLEM FOKKENROOD, Aloysius Cornelis Johannes STROUCKEN, HARM JAN WILLEM BELT, Alexander Franciscus KOLEN, Nenad MIHAJLOVIC
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Patent number: 9675417Abstract: The present invention relates to a device comprising a supply unit (2) for supplying ablation energy to a material (4), and a stimuli-responsive substance (3?) for controlling a level of the ablation energy deposited into the material (4). The device allows to limit a temperature of the material (4), so that risks associated to ablation at too high temperatures can be eliminated. The device may comprise at least one illumination unit (7) for illuminating the material (4), and at least one reception unit (8a, 8b) for receiving reflected light in order to obtain information about a state of the material (4). The obtained information can be used to regulate the supplied ablation energy.Type: GrantFiled: July 10, 2009Date of Patent: June 13, 2017Assignee: Koninklijke Philips N.V.Inventors: Szabolcs Deladi, Nenad Mihajlovic, Ralph Kurt
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Patent number: 9662170Abstract: The invention relates to a sensing apparatus for sensing an object. The sensing apparatus comprises an ultrasound unit (11) for ultrasonically sensing the object (4), an electrical energy application unit (9) for applying electrical energy to the object (4), and an ultrasound unit shielding element (16) for electrically shielding the ultrasound unit (11), wherein the ultrasound unit shielding element (16) is electrically connected to the electrical energy application unit (9). Since the ultrasound unit shielding element electrically shields the ultrasound unit, the ultrasound sensing of the object is less influenced by a capacitive coupling of the application of electrical energy, in particular, of an RF signal which may be used for applying the electrical energy, into the ultrasound sensing. A further reduction of this influence is achieved by electrically connecting the ultrasound unit shielding element to the electrical energy application unit.Type: GrantFiled: November 3, 2011Date of Patent: May 30, 2017Assignee: Koninklijke Philips N.V.Inventors: Franciscus Paulus Maria Budzelaar, Nenad Mihajlovic, Antonius Johannes Josephus Rademakers, Cornelius Antonius Nicholaas Maria Van Der Vleuten
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Patent number: 9036140Abstract: An optical probe system having a probe with an optical guide (G) having a distal end. The optical guide (G) is mounted inside a housing (H) so that the distal end is displaceable with respect to the housing (H). A set of actuators (A), e.g. electromagnetic drive coils, can displace the distal end by application of a drive signal (Vx, Vy). A control unit (CU) generates the drive signal (Vx, Vy) so as to provide a scanning frequency which varies according to an amplitude of the drive signal (Vx, Vy). With such probe system it is possible to scan a field of view with a scanning frequency that varies with the scanning radius. Taking into account the maximum allowable drive current, it is possible to increase scanning speed compared to scanning at the mechanical resonance frequency of the optical system, since small radii can be scanned at a high scanning frequency.Type: GrantFiled: September 10, 2010Date of Patent: May 19, 2015Assignee: Koninklijke Philips N.V.Inventors: Nenad Mihajlovic, Jeroen Jan Lambertus Horikx, Waltherus Cornelis Jozef Bierhoff, Cornelius Antonius Hezemans, Bernardus Hendrikus Wilhelmus Hendriks
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Publication number: 20140316282Abstract: The present invention discloses an optical microscopy probe (10) for scanning microscopy imaging of object (O). The probe has an optical window (22), and an optical guide (2) having an objective lens (6) rigidly coupled to an end portion of the optical guide. The optical guide is displaceably mounted in a transverse direction of the housing (21) so as to enable optical scanning in a region of interest (ROI). A relay lens unit (25) is rigidly mounted at the distal end (23) of the probe and it has a first lens (25a), a second lens (25b) and a mirror (25c), the relay lens unit being optically arranged relative to the objective lens for allowing scanning microscopy through the optical window of the housing. The invention is advantageous for obtaining an improvement in the available field of view of the probe because the cooperation between the displaceable objective lens and the relay lens unit may compensate for the relative limited free working distance of the objective lens.Type: ApplicationFiled: October 31, 2012Publication date: October 23, 2014Inventors: Bernardus Hendrikus Wilhelmus Hendriks, Waltherus Cornelis Bierhoff, Nenad Mihajlovic