Patents by Inventor Bharat Ramachandran
Bharat Ramachandran 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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Patent number: 11826107Abstract: A registration system for medical navigation includes a shape sensing device (SSD) (104, 504) having at least one sensor (450, 505) for providing corresponding sensor information (SI) indicative of at least one of a position of the at least one sensor (450, 505); a registration fixture (106) having a channel (130) configured to receive at least part of the SSD and defining a registration path (P). The registration fixture may be configured to be attached to a registrant object (RO) (119) defining a workspace. A controller (110) may be configured to: sense a shape of a path traversed by the SSD based upon the SI when the at least one sensor is situated within the channel (130), determine whether the sensed shape of the path corresponds with a known shape selected from one or more known shapes, and perform a coordinate registration based upon the determination.Type: GrantFiled: December 16, 2016Date of Patent: November 28, 2023Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Paul Thienphrapa, Bharat Ramachandran, Aryeh Leib Reinstein, Douglas Allen Stanton
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Patent number: 11642031Abstract: A system, device and method include a sensing enabled device having an optical fiber configured to perform distributed sensing of temperature-induced strain. An interpretation module is configured to receive optical signals from the optical fiber within a body and interpret the optical signals to determine one or more temperature transition points sensed by the sensing enabled device for image registration.Type: GrantFiled: October 31, 2018Date of Patent: May 9, 2023Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Bharat Ramachandran, Robert Manzke, Raymond Chan
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Patent number: 11617623Abstract: A system for providing a perspective for a virtual image includes an intraoperative imaging system (110) having a transducer (146) configured to generate an image data set for a region. A shape sensing enabled device (102) is configured to have at least a portion of the shape sensing enabled device positioned relative to the region. The shape sensing enabled device has a coordinate system registered with a coordinate system of the intraoperative imaging system. An image generation module (148) is configured to render a virtual image (152) of at least a portion of the region using the image data set wherein the virtual image includes a vantage point relative to a position on the shape sensing enabled device.Type: GrantFiled: January 4, 2015Date of Patent: April 4, 2023Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Christopher Stephen Hall, Bharat Ramachandran, Molly Lara Flexman, Aleksandra Popovic
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Publication number: 20220378519Abstract: An optical shape sensing (OSS) system includes a launch fixture configured to receive and secure an optical fiber within a flexible OSS enabled instrument, where the launch fixture includes a docking interface; a launch fixture base configured to be connected to a support structure; and a docking device configured to secure the launch fixture onto the launch fixture base. The docking device includes a launch fixture slot passing through the docking device, and the launch fixture slot is configured to receive and secure the docking interface of the launch fixture through both a top side of the docking device and an opposing bottom side of the docking device.Type: ApplicationFiled: August 12, 2022Publication date: December 1, 2022Inventors: David Paul NOONAN, Molly Lara FLEXMAN, Bharat RAMACHANDRAN, Merel Danielle LEISTOKOW
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Patent number: 11432880Abstract: One or more launch fixture (650)s for optical shape sensing (OSS), the one launch fixture (650) or each launch fixture (650) being configured to receive and secure an optical fiber within a flexible OSS enabled instrument. A docking device (670) is provided for securing the launch fixture (650)(s) onto a launch fixture base (660). The docking device (670) may include one or more launch fixture (650) slots on one side of the docking device (670), or one or more launch fixture (650) slots on each of two opposing sides of the docking device (670).Type: GrantFiled: January 21, 2019Date of Patent: September 6, 2022Assignee: KONINKLIJKE PHILIPS N.V.Inventors: David Paul Noonan, Molly Flexman, Bharat Ramachandran, Merel Danielle Leistikow
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Patent number: 11389134Abstract: A system for finding improved views includes a shape sensing optical fiber system disposed on or in a prosthesis to track the prosthesis in a volume. A real-time imaging system employs a non-ionizing radiation source to image the volume having the prosthesis and reference positions in the volume. A search program is stored in memory to search images of the real-time imaging system to identify the reference positions in the volume. An image processing device overlays shape sensing data and images from the real-time imaging system and computes an improved view in accordance with improved view parameters.Type: GrantFiled: September 13, 2016Date of Patent: July 19, 2022Assignee: KONINKLIJKE PHILIPS N.V.Inventors: John Allan Bracken, Bharat Ramachandran, Molly Lara Flexman
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Patent number: 11224405Abstract: An apparatus and method that uses shape sensing and imaging to record, display and enable return to an imaging probe location or to predetermined imaging parameters. The apparatus includes an ultrasound probe (104, 304, 404, 750); a shape-sensing-device (SSD) (102, 302, 602, 740) associated with the ultrasound probe; and a controller (122, 710). The controller may be configured to: determine at least one of location and orientation of the ultrasound probe based upon position sensor information (PSI) received from the SSD; select a view of a plurality of views of a workflow that are stored in the memory; obtain view setting information (VSI) including parameters and a position and/or orientation of the ultrasound probe for each of the views; determine guidance information; and render the determined guidance information on the rendering device and set ultrasound probe parameters based on the parameters of the VSI for the selected view.Type: GrantFiled: June 28, 2017Date of Patent: January 18, 2022Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Paul Thienphrapa, Bharat Ramachandran, Molly Lara Flexman, Neriman Nicoletta Kahya
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Patent number: 11109775Abstract: A system and method for shape sensing assistance in a medical procedure includes a three-dimensional image (111) of a distributed pathway system (148). A shape sensing enabled elongated device (102) is included for insertion into the pathway system to measure a shape of the elongated device in the pathway system. A pathway determination module (144) is configured to compute a planned path to a target in the three-dimensional image and compute permissible movements of the elongated device at diverging pathways in the pathway system to provide feedback for deciding which of the diverging paths to take in accordance with the planned path.Type: GrantFiled: October 8, 2012Date of Patent: September 7, 2021Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Tobias Klinder, Bharat Ramachandran, Robert Manzke, Raymond Chan
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Patent number: 10820830Abstract: An optical shape sensing system employing an optical fiber (20) and one or more reference markers (41). Each reference marker (41) has an identifiable reference tracking position within a reference coordinate system (42). The optical fiber (20) has a reconstruction launch point (21) within the reference coordinate system (42) serving as a basis for an execution of a shape reconstruction of the optical fiber (20) within the reference coordinate system (42). The reconstruction launch point (21) of the optical fiber (20) has a known spatial relationship with each reference marker (41) to facilitate an identification of the reconstruction launch point (21) within the reference coordinate system (42).Type: GrantFiled: January 24, 2012Date of Patent: November 3, 2020Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Bharat Ramachandran, Raymond Chan, Robert Manzke
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Patent number: 10825358Abstract: A training or rating system includes a shape sensing enabled device (104) and a database (140) of possible shapes and sequences of shapes for the shape sensing enabled device. The possible shapes and sequences of shapes include a collection of poses derived by appropriately performing a procedure with the shape sensing enabled device. A comparison module (154) is configured to compare real-time poses of the shape sensing enabled device with the collection of poses in the database to output comparison feedback for a user of the shape sensing enabled device.Type: GrantFiled: September 20, 2013Date of Patent: November 3, 2020Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Robert Manzke, Raymond Chan, Bharat Ramachandran, Michael Chun-chieh Lee
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Patent number: 10653320Abstract: A volume mapping instrument (20), deployable within a partially or a completely enclosed anatomical volume, employs one or more medical tools (40) with each medical tool (40) being transitional between a deployable structural configuration to orderly position each medical tool (40) within the anatomical volume and a mapping structural configuration to anchor the medical tool (40) against the boundary of the anatomical volume. The volume mapping instrument (20) further employs an optical shape sensor (30) to generate one or more encoded optical signals indicative of a shape of the boundary of the anatomical volume in response to each medical tool (40) being transitioned from the deployable structural configuration to the mapping structural configuration within the anatomical volume. Based on the encoded optical signal(s), a volume mapping module (51) is utilized to map a portion or an entirety of the boundary of the anatomical volume.Type: GrantFiled: September 20, 2013Date of Patent: May 19, 2020Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Karen Irene Trovato, Raymond Chan, Robert Manzke, Cynthia Ming-fu Kung, Bharat Ramachandran, Laurent Verard
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Patent number: 10639007Abstract: A registration device includes an attachment piece (106) configured to conform with and attach to an imaging probe (102), in particular an internal or external ultrasound probe such as a TEE probe. A pathway (105) formed in or on the attachment piece is configured to receive an optical shape sensing device (OSS fiber) such that the optical shape sensing device can free float (no tip fixation) to permit longitudinal twisting within the pathway. The pathway includes a distinctive geometry for shaping the OSS device such that the distinctive geometry provides a template pattern (107) within an image collected using the imaging probe module to permit registration between imaging coordinates and OSS coordinates. A registration module (130) is configured to compare a stored shape template (121) with an image (134) including the template pattern to permit the registration (unique transformation).Type: GrantFiled: December 1, 2015Date of Patent: May 5, 2020Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Gregory Cole, Marissa Patricia Dreyer, Bharat Ramachandran
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Patent number: 10575757Abstract: A system and method include a shape sensing enabled device too (102) having an optical fiber (126). An interpretation module (115) is configured to receive optical signals from the optical fiber within a structure and interpret the optical signals to determine a shape of the device. An image generation module (140) is configured to receive the shape of the device, register the shape with an image volume of the structure and generate a curved Memory multi-planar reconstruction (CMPR) rendering based on the shape.Type: GrantFiled: August 13, 2012Date of Patent: March 3, 2020Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Robert Manzke, Raymond Chan, Martin Bernardus Van Der Mark, Gert Wim 'T Hooft, Bharat Ramachandran, Laurent Verard
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Patent number: 10357323Abstract: A shape sensing system includes a guide tube (304) and an optical shape sensing device (104) including one or more optical fibers and being proximally fixed at a fixation point and being disposed within the guide tube. An interventional instrument (102) is rigidly attached to a handle (212) to prevent rotation of the instrument relative to the handle. The instrument has a lumen configured to receive the guide tube therein such that the optical shape sensing device is unconstrained throughout the instrument and the handle, and the guide tube is free to slip relative to at least rotation of the instrument and the handle without transferring torsional friction to optical shape sensing device.Type: GrantFiled: March 26, 2014Date of Patent: July 23, 2019Assignee: KONINKLIJKE PHILIPS N.V.Inventors: David Paul Noonan, Raymond Chan, Molly Lara Flexman, Bharat Ramachandran
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Patent number: 10317197Abstract: A system and method for shape sensing with optical fiber include collecting (610) shape data from a shape sensing optical fiber device. The shape data are tested (620) to determine data positions that exceed an acceptable threshold based on geometrical expectations of the shape data. The shape data corresponding to the data positions that exceed an acceptable threshold are rejected (640). Acceptable shape data are rendered (650) to provide a stable shape sensing data set.Type: GrantFiled: May 1, 2013Date of Patent: June 11, 2019Assignee: Koninklijke Philips N.V.Inventors: Bharat Ramachandran, Robert Manzke, Raymond Chan
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Publication number: 20190167357Abstract: One or more launch fixture (650)s for optical shape sensing (OSS), the one launch fixture (650) or each launch fixture (650) being configured to receive and secure an optical fiber within a flexible OSS enabled instrument. A docking device (670) is provided for securing the launch fixture (650)(s) onto a launch fixture base (660). The docking device (670) may include one or more launch fixture (650) slots on one side of the docking device (670), or one or more launch fixture (650) slots on each of two opposing sides of the docking device (670).Type: ApplicationFiled: January 21, 2019Publication date: June 6, 2019Inventors: David Paul Noonan, Molly Flexman, Bharat Ramachandran, Merel Danielle Leistikow
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Patent number: 10254109Abstract: An OSS sound generation system employing an optical shape sensor (10), an optical shape sensor (10) controller, one or more audible devices (40) and a sound controller (30). In operation, the OSS controller (20) controls a generation by the optical shape sensor (10) of sensor data indicative of stimuli measurement(s) of the optical shape sensor (10), and the sound controller (30) interprets the sensor data to control a generation by the audible device(s) (40) of one or more sound(s) derived from the stimuli measurement(s) of the optical shape sensor (10).Type: GrantFiled: September 19, 2014Date of Patent: April 9, 2019Assignee: Koninklijke Philips N.V.Inventors: Karen Irene Trovato, William J. Sgambati, Molly Lara Flexman, Bharat Ramachandran
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Publication number: 20190059743Abstract: A system, device and method include a sensing enabled device having an optical fiber configured to perform distributed sensing of temperature-induced strain. An interpretation module is configured to receive optical signals from the optical fiber within a body and interpret the optical signals to determine one or more temperature transition points sensed by the sensing enabled device for image registration.Type: ApplicationFiled: October 31, 2018Publication date: February 28, 2019Inventors: BHARAT RAMACHANDRAN, ROBERT MANZKE, RAYMOND CHAN
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Publication number: 20190000562Abstract: A registration system for medical navigation includes a shape sensing device (SSD) (104, 504) having at least one sensor (450, 505) for providing corresponding sensor information (SI) indicative of at least one of a position of the at least one sensor (450, 505); a registration fixture (106) having a channel (130) configured to receive at least part of the SSD and defining a registration path (P). The registration fixture may be configured to be attached to a registrant object (RO) (119) defining a workspace. A controller (110) may be configured to: sense a shape of a path traversed by the SSD based upon the SI when the at least one sensor is situated within the channel (130), determine whether the sensed shape of the path corresponds with a known shape selected from one or more known shapes, and perform a coordinate registration based upon the determination.Type: ApplicationFiled: December 16, 2016Publication date: January 3, 2019Applicant: KONINKLIJKE PHILIPS N.V.Inventors: PAUL THIENPHRAPA, BHARAT RAMACHANDRAN, ARYEH LEIB REINSTEIN, DOUGLAS ALLEN STANTON
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Publication number: 20180256131Abstract: A system for finding improved views includes a shape sensing optical fiber system (104) disposed on or in a prosthesis (102) to track the prosthesis in a volume. A real-time imaging system (110) employs a non-ionizing radiation source to image the volume having the prosthesis and reference positions in the volume. A search program (140) is stored in memory to search images of the real-time imaging system to identify the reference positions in the volume. An image processing device (148) overlays shape sensing data and images from the real-time imaging system and computes an improved view in accordance with improved view parameters.Type: ApplicationFiled: September 13, 2016Publication date: September 13, 2018Applicant: KONINKLIJKE PHILIPS N.V.Inventors: JOHN ALLAN BRACKEN, BHARAT RAMACHANDRAN, MOLLY LARA FLEXMAN