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公开(公告)号:US20240307133A1
公开(公告)日:2024-09-19
申请号:US18576240
申请日:2022-08-09
发明人: Christian DeBuys , Young-Ho Kim , Tommaso Mansi
CPC分类号: A61B34/30 , A61B17/00 , A61B2017/00398 , A61B2017/0046 , A61B2034/301
摘要: In a robotic or even manually controlled catheter, more direct connection of the force application (e.g., actuators) is provided from the handle to the tendons. The actuators are part of the handle. To avoid discarding the actuators after each use, the handle with the actuators is separable from a housing for the tendons. The housing for the tendons includes a clamp to hold the tendons in place prior to connecting with the handle and actuators.
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公开(公告)号:US11712313B2
公开(公告)日:2023-08-01
申请号:US16907675
申请日:2020-06-22
发明人: Christian DeBuys , Young-Ho Kim , Ankur Kapoor , Tommaso Mansi
CPC分类号: A61B34/37 , A61B90/36 , A61M25/0113 , A61M25/0116 , B25J9/1035 , A61B2034/301 , A61B2090/378
摘要: For robotically operating a catheter, translation and/or rotation manipulation is provided along the shaft or away from the handle, such as near a point of access to the patient. A worm drive arrangement may allow for both translation and rotation of the shaft. Some control may be provided by robotic manipulation of the handle, while other control (e.g., fine adjustments) are made by robotic manipulation of the shaft.
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公开(公告)号:US20190269379A1
公开(公告)日:2019-09-05
申请号:US15909570
申请日:2018-03-01
发明人: Ankur Kapoor , Tommaso Mansi , Kutay F. Ustuner , Helene C. Houle , Ismayil M. Guracar , Rickard C. Loftman
摘要: For quantification of blood flow by an ultrasound system, B-mode images generated with a multi-transmit, coherent image formation produce swirling or other speckle patterns in the blood regions. These patterns, as represented in specially formed B-mode images, are tracked over time to indicate two or three-dimensional velocity vectors of the blood at a B-mode resolution. Various visualizations may be provided at the same resolution, including the velocity flow field, flow direction, vorticity, vortex size, vortex shape, and/or divergence.
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公开(公告)号:US10194888B2
公开(公告)日:2019-02-05
申请号:US14656159
申请日:2015-03-12
发明人: Stephen Henderson , Tommaso Mansi , Anand Tatpati , Ingmar Voigt , Bimba Rao
摘要: An entire volume is scanned. A sub-volume is separately scanned with different settings for beamforming parameters, allowing greater image quality for the sub-volume while providing context from the volume. The anatomy of interest is periodically detected, and the sub-volume shifted in position to cover the anatomy of interest, allowing for relatively continuous volume imaging with enhanced quality imaging of the sub-volume. Interleaving by volume and sub-volume slices may allow for optimization of relative frame rate and image quality. Different combinations between volume and sub-volume data for anatomy detection and display may provide for desired imaging while allowing the regular detection of the anatomy.
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公开(公告)号:US09848856B2
公开(公告)日:2017-12-26
申请号:US14971254
申请日:2015-12-16
发明人: Sasa Grbic , Tommaso Mansi , Ingmar Voigt , Julian Krebs
CPC分类号: A61B17/00 , A61B6/032 , A61B6/503 , A61B6/52 , A61B6/5217 , A61B8/12 , A61B8/488 , A61B8/5223 , A61B2017/00783 , A61B2034/104 , A61B2034/105 , A61B2576/023 , G06T7/0016 , G06T7/251 , G06T2207/30048
摘要: In valve modeling from medical scan data, chordae are modeled as a dense structure. Rather than attempting to provide the same number of chordae (e.g., 25) as found in a human valve, hundreds or thousands of chordae connectors are used. Since solving for lengths of so many chordae may be computationally intensive, the lengths of only a few are solved, and the lengths of the rest of the chordae are derived from the lengths of the few.
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公开(公告)号:US09814446B2
公开(公告)日:2017-11-14
申请号:US14693080
申请日:2015-04-22
发明人: Tommaso Mansi , Saikiran Rapaka , Ali Kamen , Dorin Comaniciu , Francois Forlot , Liexiang Fan
CPC分类号: A61B8/485 , A61B8/463 , A61B8/5207 , A61B8/5223 , A61B8/5269
摘要: A method and system for automatic non-invasive estimation of shear modulus and viscosity of biological tissue from shear-wave imaging is disclosed. Shear-wave images are acquired to evaluate the mechanical properties of an organ of a patient. Shear-wave propagation in the tissue in the shear-wave images is simulated based on shear modulus and viscosity values for the tissue using a computational model of shear-wave propagation. The simulated shear-wave propagation is compared to observed shear-wave propagation in the shear-wave images of the tissue using a cost function. Patient-specific shear modulus and viscosity values for the tissue are estimated to optimize the cost function comparing the simulated shear-wave propagation to the observed shear-wave propagation.
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公开(公告)号:US11771396B2
公开(公告)日:2023-10-03
申请号:US15909570
申请日:2018-03-01
发明人: Ankur Kapoor , Tommaso Mansi , Kutay F. Ustuner , Helene C. Houle , Ismayil M. Guracar , Rickard C. Loftman
CPC分类号: A61B8/06 , A61B8/5223 , A61B8/5246 , A61B8/481 , A61B8/488
摘要: For quantification of blood flow by an ultrasound system, B-mode images generated with a multi-transmit, coherent image formation produce swirling or other speckle patterns in the blood regions. These patterns, as represented in specially formed B-mode images, are tracked over time to indicate two or three-dimensional velocity vectors of the blood at a B-mode resolution. Various visualizations may be provided at the same resolution, including the velocity flow field, flow direction, vorticity, vortex size, vortex shape, and/or divergence.
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公开(公告)号:US20190099159A1
公开(公告)日:2019-04-04
申请号:US15720317
申请日:2017-09-29
发明人: Ingmar Voigt , Tommaso Mansi , Helene C. Houle
摘要: For measurement point determination in imaging with a medical scanner, the user selects a location on the image. Rather than using that location, an “intended” location corresponding to a local boundary or landmark represented in the image is identified. The medical scanner uses the simple user interface to more exactly determine points for measurement. One or more rays are cast from the user selected location. The actual location is found by examining data along the ray or rays. For 2D imaging, the rays are cast in the plane. For 3D imaging, the ray is cast along a view direction to find the depth. The intensities along the ray or around the ray are used to find the actual location, such as by application of a machine-learnt classifier to the limited region around the ray or by finding intensities along the ray relative to a threshold.
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公开(公告)号:US20190090951A1
公开(公告)日:2019-03-28
申请号:US15719388
申请日:2017-09-28
发明人: Estelle Camus , Tommaso Mansi , Ingmar Voigt
摘要: An ultrasound imager provides for LAA closure guidance. Using ultrasound imaging allows for modeling over time (e.g., throughout a heart cycle). An anatomy model of the LAA over time is used to create a biomechanical model personalized to the patient. The personalized models and a model of one or more closure devices are used to select a closure device for the patient appropriate for the entire heart cycle and to guide placement of the selected closure device during an implantation.
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公开(公告)号:US20230157761A1
公开(公告)日:2023-05-25
申请号:US17456458
申请日:2021-11-24
发明人: Rui Liao , Young-Ho Kim , Jarrod Collins , Abdoul Aziz Amadou , Sebastien Piat , Ankur Kapoor , Tommaso Mansi , Noha El-Zehiry , Sasa Grbic , Dorin Comaniciu , Xianjun S. Zheng , Bo Liu , Zhoubing Xu , Jin-hyeong Park
CPC分类号: A61B34/20 , A61B34/25 , A61B34/32 , A61B2034/2063
摘要: Systems and methods for automatically navigating a catheter in a patient are provided. An image of a current view of a catheter in a patient is received. A set of actions of a robotic navigation system for navigating the catheter from the current view towards a target view is determined using a machine learning based network. The catheter is automatically navigated in the patient from the current view towards the target view using the robotic navigation system based on the set of actions.
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