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1. 发明授权

US11564752B2 Systems and methods for intraoperative spinal level verification 有权
公开(公告)号：US11564752B2
公开(公告)日：2023-01-31
申请号：US16891556
申请日：2020-06-03
申请人： 7D SURGICAL INC.
发明人： Michael K. K. Leung , Adrian Mariampillai , Beau Anthony Standish , Peter Siegler , Victor X. D. Yang
IPC分类号： A61B34/20 , A61B34/10 , G06T7/38 , G06T7/10 , G06T7/11 , A61B17/56 , G06T7/00 , G06T7/168 , G06T7/262 , A61B90/00 , A61B17/00
摘要： Systems and methods are provided in which intraoperatively acquired surface data is employed to verify the correspondence of an intraoperatively selected spinal level with a spinal level that is pre-selected based on volumetric image data. Segmented surface data corresponding to the pre-selected spinal levels may be obtained from the volumetric image data, such that the segmented surface data corresponds to a spinal segment that is expected to be exposed and identified intraoperatively during the surgical procedure. The segmented surface data from the pre-selected spinal level, and adjacent segmented surface data from an adjacent spinal level that is adjacent to the pre-selected spinal level, is registered to the intraoperative surface data, and quality measures associated with the registration are obtained, thereby permitting an assessment or a determination of whether or not the pre-selected spinal surface (in the volumetric frame or reference) is likely to correspond to the intraoperatively selected spinal level.

2. 发明授权

US11547497B2 Attachments for tracking handheld implements 有权
公开(公告)号：US11547497B2
公开(公告)日：2023-01-10
申请号：US17061159
申请日：2020-10-01
申请人： 7D SURGICAL INC.
发明人： Victor X. D. Yang , Peter Siegler , Adrian Mariampillai , Beau Anthony Standish , Michael Leung
IPC分类号： A61B34/20 , A61B5/06 , A61B17/17 , A61B90/00 , A61B17/00
摘要： Devices and systems are provided for tracking a position and orientation of a handheld implement, such that the handheld implement may be trackable with an overhead tracking system. A support member secures one or more markers relative to a longitudinal portion of the handheld implement, and a marker plane containing the markers is orientated an angle relative to a longitudinal axis of the longitudinal portion. A marker assembly may include a support member for supporting the markers, and a connector for removably attaching the marker assembly to one or more handheld implements. The marker assembly may be configured to be removably attachable to a plurality of connection adapters, where each connection adapter is further connectable to a handheld implement, optionally at a calibrated position, such that a single connection adapter can be optionally employed to track a plurality of handheld implements. The handheld implement may be a medical instrument.

3. 发明授权

US11472373B2 Energy control coatings, structures, devices, and methods of fabrication thereof 有权
公开(公告)号：US11472373B2
公开(公告)日：2022-10-18
申请号：US16605948
申请日：2018-04-17
申请人： 3E NANO INC.
发明人： Nazir Pyarali Kherani , Sai Shankar Balakrishnan , Stepan Olegovich Fomichev , Yufeng Ye , Remy Howard Haoching Ko , Daniel P. Shea
IPC分类号： B60S1/02 , B60J1/00 , B60J1/02 , G02B5/28 , H05B3/84
摘要： Multilayer metallo-dielectric energy control coatings are disclosed in which one or more layers are formed from a hydrogenated metal nitride dielectric, which may be hydrogenated during or after dielectric deposition. Properties of the multilayer coating may be configured by appropriately tuning the hydrogen concentration (and/or the spatial profile thereof) in one or more hydrogenated metal nitride dielectric layers. One or more metal layers of the multilayer coating may be formed on a hydrogenated nitride dielectric layer, thereby facilitating adhesion of the metal with a low percolation threshold and enabling the formation of thin metal layers that exhibit substantial transparency in the visible spectrum. Optical properties of the coating may be tuned through modulation of metal-dielectric interface roughness and dispersion of metal nanoparticles in the dielectric layer. Electrical busbars and micro-nano electrical grids may be integrated with one or more metal layers to provide functionality such as de-icing and defogging.

4. 发明授权

US11454873B2 Polarized projection system and method 有权
公开(公告)号：US11454873B2
公开(公告)日：2022-09-27
申请号：US16934768
申请日：2020-07-21
申请人： Advanced Video Technology Solutions Ltd.
发明人： Adrian Howard Kitai , Christopher Lawrence Cavalieri
IPC分类号： G03B21/20 , G02B5/30 , G03B21/604
摘要： A projection system for use with a polarized projection screen having a screen polarization direction. The projection system includes a projector operable to generate a polarized light output and project the polarized light output along a beam path towards the polarized projection screen. The polarized light output includes at least a first light component having a first polarization direction and a second light component having a second polarization direction orthogonal to the first polarization direction. The projection system also includes a waveplate received in the beam path. The waveplate is structured to rotate at least one of the first light component and the second light component such that the first light component and the second light component have a common polarization direction to be aligned with the screen polarization direction to minimize absorption loss of the polarized light output.

5. 发明授权

US11426602B2 System and method for manufacturing bolus for radiotherapy using a three-dimensional printer 有权
公开(公告)号：US11426602B2
公开(公告)日：2022-08-30
申请号：US16427444
申请日：2019-05-31
申请人： Dalhousie University
发明人： James Robar , Shiqin Su
IPC分类号： A61N5/10 , A61B6/03 , A61B6/00 , B29L31/00 , B33Y50/02 , B33Y80/00 , B29K67/00
摘要： Disclosed herein are systems, methods, and computer-readable storage devices for manufacturing patient-specific bolus for use in targeted radiotherapy treatment. Based on dose calculations without a bolus and based on three-dimensional scan data of a patient, the example system generates a model of a bolus for targeting radiotherapy treatment to a planning target volume or target region within the patient. The system can perform several iterations to generate a resulting model for the bolus. Then, the system can generate instructions for controlling a three-dimensional printer to generate the bolus that conforms to the patient's skin surface while also specifically targeting the planning target volume for the radiotherapy treatment. In this way, the amount of radiotherapy treatment administered to other tissue is reduced, while the costs, time, and human involvement in creating the bolus are significantly reduced.

6. 发明授权

US11376080B2 Integrated illumination and optical surface topology detection system and methods of use thereof 有权
公开(公告)号：US11376080B2
公开(公告)日：2022-07-05
申请号：US16779721
申请日：2020-02-03
申请人： 7D SURGICAL INC.
发明人： Victor X. D. Yang , Adrian Linus Dinesh Mariampillai , Beau Anthony Standish , Michael Ka Kit Leung
IPC分类号： A61B34/20 , A61B90/35 , A61B6/00 , A61B5/00 , G01B11/25 , A61B90/30 , A61B6/06 , A61B90/20 , G01N21/47 , G01N21/55 , A61B50/28 , A61B90/00 , A61B5/11
摘要： Systems and methods are provided for optical topology detection and illumination. Embodiments provide an integrated system, and methods of operation thereof, where the integrated system includes an illumination system and an optical topology detection system, and where at least a portion of the spectral content of illumination light from the illumination system is within an optical detection bandwidth of the optical topology detection system, and where the operation of the optical topology detection system and the illumination system are interleaved to avoid crosstalk, such that the optical topology detection system detects the optical topology detection light when the illumination system is not emitting illumination light. The system may include, and control the operation of, an optical navigation system. The components of the system may be mounted to a rigid frame to maintain calibration.

7. 发明授权

US11367421B2 Autonomous tuner for stringed instruments 有权
公开(公告)号：US11367421B2
公开(公告)日：2022-06-21
申请号：US17150726
申请日：2021-01-15
申请人： 2UNIFY INC.
发明人： Michael Jobity , Ryan Ng Cheong Ton , Mitchell Wong , Michael Salamaszek , Curtis Graham
IPC分类号： G10D3/14 , G10D1/00 , G10G5/00 , G06T7/70 , G10C9/00 , G10L25/51 , B25J9/16 , B25J11/00 , G10C3/10 , G06V20/10
摘要： Systems and methods are provided performing autonomous tuning of a stringed instrument. Images of the stringed instrument are acquired by at least two cameras and processed to identify the location of a peg. A robotic peg actuator is then engaged to actuate rotation of a peg in order to rotate the peg to a tuned angular orientation, guided by feedback generated by processing acoustic signals recorded by an acoustic transducer while a string associated with the peg is agitated. In some example implementations, the cameras and peg actuator are rigidly mounted to a frame that is configured to support the stringed instrument during peg imaging and actuation. A robotic string actuator may be provided to facilitate vibration of the string during the tuning process. Multiple robotic peg actuators may be included for per-peg rotational actuation and/or a given peg actuator may be robotically translatable to actuate more than one peg.

8. 发明授权

US11294004B2 Giant magnetoresistance-based biosensors 有权
公开(公告)号：US11294004B2
公开(公告)日：2022-04-05
申请号：US16753829
申请日：2018-10-09
申请人： Jin Zhang
发明人： Jin Zhang
IPC分类号： G01N27/72 , G01R33/09 , G01N27/76 , B82Y15/00
摘要： Disclosed is a system for detecting one or more target analytes which includes a resistor structure comprised of a substrate, a graphene-based nanocomposite material located on a surface of the substrate with the graphene-based nanocomposite material exhibiting one or more magnetoresistance properties. A surface of the nanocomposite material includes molecular sensing elements bound thereto which exhibit an affinity for binding with the target analytes. Electrodes are connected to the resistor structure connectable to a power source and a device for measuring a resistance across the resistor structure for sensing a giant magnetoresistance (GMR) value of the resistor structure. Included are magnetic colloidal nanoparticles exhibiting preselected magnetic properties with an outer surface of the magnetic colloidal nanoparticles being modified to allow interaction with the surface of the resistor structure resulting in a change in the GMR value of the resistor structure. The resistor structure is configured to be operably connected to a magnetic field generating device configured to apply a magnetic field to the graphene-based nanocomposite wherein the field has a magnitude in a range from greater than 0 to about 5 Tesla. A presence of target analytes in a vicinity of the surface of the resistor structure induces the interaction to occur by binding of the target analytes to the molecular sensing elements bound thereto causing a change in GMR value of the resistor structure.

9. 发明授权

US11231358B2 Systems and methods for performing enhanced truncated-correlation photothermal coherence tomography 有权
公开(公告)号：US11231358B2
公开(公告)日：2022-01-25
申请号：US16900471
申请日：2020-06-12
申请人： Andreas Mandelis , Koneswaran S. Sivagurunathan , Pantea Tavakolian
发明人： Andreas Mandelis , Koneswaran S. Sivagurunathan , Pantea Tavakolian
IPC分类号： A61B5/01 , G01N21/17 , G06T11/00 , A61B5/00
摘要： Systems and methods are provided for performing thermophotonic imaging using cross-correlation and subsequent time-gated truncation. Photothermal radiation is detected with an infrared camera while exciting a sample with a chirped set of incident optical pulses and time-dependent photothermal signal data is processed using a method that involves performing cross-correlation and subsequent time-gated truncation. The post-cross-correlation truncation method results in depth-resolved images with axial and lateral resolution beyond the well-known thermal-diffusion-length-limited, depth-integrated nature of conventional imaging modalities. An axially resolved photothermal image sequence can be obtained, capable of reconstructing three-dimensional visualizations of photothermal features in wide classes of materials.

10. 发明授权

US10989810B2 Systems and methods for beamforming using variable sampling 有权
公开(公告)号：US10989810B2
公开(公告)日：2021-04-27
申请号：US15544778
申请日：2016-01-22
申请人： DALHOUSIE UNIVERSITY
发明人： Jeremy Brown , Christopher Samson , Jeff Leadbetter
IPC分类号： A61B8/00 , G01S15/89 , A61B8/14 , G01S7/52 , A61B8/12 , G10K11/34 , A61B8/08
摘要： The present disclosure provides systems and methods for ultrasound imaging using a modified variable sampling beamforming technique. Unlike conventional methods of variable sampling beamforming, in which in-phase and quadrature samples are obtained for each pixel location, in various example embodiments of the present disclosure, the pixel locations are quadrature-spaced such that for each 5 sample point, an adjacent sample point along an A-line is employed as the quadrature sample. The samples at each array element may be triggered according to the time of flight between a first pixel location and the location of the array element, such that successive samples, corresponding to successive pixel locations along the selected A-line, are obtained such that adjacent samples are spaced by a 10 time interval corresponding to a quarter of an odd number of wavelenghths of the beamformed transmit pulse, and such that only one sample is acquired per pixel.

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