-
公开(公告)号：US11207139B2
公开(公告)日：2021-12-28
申请号：US16346498
申请日：2016-10-31
IPC分类号： A61B5/00 , A61B34/20 , A61B90/20 , A61B90/00 , A61B8/08 , G02B21/00 , G02B21/22 , G02B21/36 , G06F3/16 , A61B90/30 , A61B34/30 , A61B34/00 , A61B34/10 , A61B17/34 , A61B17/00 , A61B90/50
摘要： A 3D navigation system and methods for enhancing feedback during a medical procedure, involving: an optical imaging system having an optical assembly comprising movable zoom optics and movable focus optics, a zoom actuator for positioning the zoom optics, a focus actuator for positioning the focus optics, a controller for controlling the zoom actuator and the focus actuator in response to received control input, at least one detector for capturing an image of at least one of a target and an obstacle, the at least one detector operable with the optical assembly, and a proprioception feature operable with the optical imaging system for generating a 3D perception, the proprioception feature comprising a communication feature for providing 3D information, the 3D information comprising real-time depth information in relation to real-time planar information within an interrogation volume.
-
公开(公告)号：US11119171B2
公开(公告)日：2021-09-14
申请号：US15745169
申请日：2015-07-16
发明人： Cameron A. Piron , Jeff Stainsby , Chad Harris , Philip Beatty
IPC分类号： G01R33/54 , G01R33/561 , A61B5/055 , A61B5/00 , A61B5/03 , G01R33/563
摘要： Systems and methods for adaptive, multi-resolution magnetic resonance imaging (“MRI”), in which an MRI scan prescription is adaptively changed to acquire high-quality data from select regions-of-interest (“ROI”) in a larger field-of-view (“FOV”), are provided. The higher quality data can include data representing higher spatial resolution, higher signal-to-noise ratio (“SNR”), increased diffusion encoding via repeated acquisition with a larger number of diffusion-encoding directions, and so on. A composite image can be generated that displays the higher quality images of the ROIs overlaid on the larger FOV.
-
13.发明申请公开(公告)号：US20210259784A1
公开(公告)日：2021-08-26
申请号：US17301988
申请日：2021-04-21
发明人： Audrey Yu-Ching KUO , Kirusha SRIMOHANARAJAH , Gal SELA , Alexander Gyles PANTHER , Kelly Noel DYER
摘要： A device and methods for maintaining patient registration in surgical navigation, involving: obtaining a patient position in a tracking system frame of reference, based on a fiducial marker array affixed in a first position relative to the patient; receiving an initial surface scan depicting the patient and the fiducial array; responsive to receiving an intraoperative image depicting the patient: obtaining a position, in the tracking system frame of reference, of the fiducial array affixed in a second position relative to the patient; receiving a secondary surface scan depicting the patient and the fiducial array; detecting a deviation in a position of the fiducial marker array relative to the patient between the initial and secondary surface scans; and applying the deviation to the position of the patient to generate an updated position of the patient in the tracking system frame of reference, based on the fiducial array affixed in the second position.
-
公开(公告)号：US20210251700A1
公开(公告)日：2021-08-19
申请号：US17302354
申请日：2021-04-30
摘要： A device and method for a trackable suction tool in surgical use. A trackable suction tool involves a tubular handle with a main tube and an entrance tube extending from the main tube, a flattened section of the main tube with a suction-regulating orifice, a tip coupled with the main tube distal end and a tracking mechanism coupled with a handle proximal end. A method of tracking position of a trackable suction device involves attaching a tip to a handle in one of a plurality of fixed positions, attaching a tracking mechanism to the handle in one of a plurality of fixed positions, calibrating the position of the tip with a positional tracking system using the tracking mechanism, positioning the tracking markers in view of the positional tracking system, and tracking a position of the distal end of the tip of the suction device.
-
公开(公告)号：US11085978B2
公开(公告)日：2021-08-10
申请号：US16435324
申请日：2019-06-07
发明人： Ian Robert Oliphant Connell , Gilbert Thevathasan , William Wai-Leung Lau , Alexander Gyles Panther
IPC分类号： G01R33/34 , A61B5/055 , G01R33/341
摘要： A head coil assembly includes a housing with a lower portion, an upper portion, a left portion, and a right portion, wherein each portion includes two or more radio-frequency (RF) coils, wherein the portions are sized and shaped to adjustably conform to a curvature of the subject's head for magnetic resonance (MR) imaging of the subject's head placed inside the housing, wherein the portions are operable to transition from an open position where the portions are sufficiently apart from each other to a closed position where the portions are adjusted to tighten a wrap around the subject's head along the curvature, and wherein the two or more RF coils in each portion are disposed in such manner that when the portions are operated to transition from the open position to the closed position, the RF coils of each portion remain decoupled to each other even along edges of each portion.
-
16.发明申请公开(公告)号：US20210231758A1
公开(公告)日：2021-07-29
申请号：US16991967
申请日：2020-08-12
IPC分类号： G01R33/385
摘要： The present disclosure reports on a method to first determine the required electromagnetic stream function, and then iterate on the contouring of the stream function to optimize the force, torque, shielding, and/or mutual inductance of the design after-the-fact without compromising the electromagnetic performance and an electromagnetic coil manufacture according to the method. These parameters are sensitive to the precise positioning of the discrete wires.
-
公开(公告)号：US11073581B2
公开(公告)日：2021-07-27
申请号：US16419098
申请日：2019-05-22
摘要： A coil assembly includes: a radio frequency (RF) coil operable to be placed over a portion of a subject; a quarter-wave transformer coupled to the RF coil and configured to transform a characteristic impedance of the RF coil; and a diode placed behind the quarter-wave transformer and away from the RF coil, wherein the diode is operable to: (i) when the diode is forward biased, the diode turns the quarter-wave transformer into an open circuit such that the power amplifier drives the RF coil with sufficient electrical power for the RF coil to transmit an RF pulse into the portion of the subject; and (ii) when the diode is provided zero or reverse bias, the diode turns the quarter-wave transformer into a short circuit such that the RF coil is detuned from a Lamor frequency of nuclei of interest immersed in the main magnet.
-
公开(公告)号：US11026580B2
公开(公告)日：2021-06-08
申请号：US15637045
申请日：2017-06-29
发明人： Siu Wai Jacky Mak , Ho Yiu Cheng , Fangxin Li , Harshul Varma
IPC分类号： A61B5/00 , A61B46/10 , A61B34/20 , A61B46/00 , A61B90/10 , A61B34/10 , A61B90/00 , A61B17/34 , A61B34/30
摘要： An OCT (Optical Coherence Tomography) handheld device is provided comprising: a housing configured for handheld OCT scanning during a surgical procedure, the housing comprising an OCT scanning end and a proximal end opposite the OCT scanning end; an OCT scanning device inside the housing, the OCT scanning device configured for one or more of OCT polarized scanning and Doppler OCT scanning from the OCT scanning end, the OCT scanning device further configured to receive and convey OCT light between the proximal end and an OCT analysing system; and a tip extending from the OCT scanning end, the tip being removably attached to the OCT scanning end, the tip configured to receive and collect the OCT light therethrough. The OCT handheld device is configured to be removably draped around the tip, for use in the surgical procedure.
-
公开(公告)号：US20210166494A1
公开(公告)日：2021-06-03
申请号：US17120722
申请日：2020-12-14
摘要： Mechanisms for image processing are provided. A computing device comprises a memory, an input device, a display, and a processor. The processor is configured to: acquire a three-dimensional image of an anatomical structure and store it in the memory. The processor renders on the display (i) an initial volume of the three-dimensional image corresponding to an initial portion of the anatomical structure, and (ii) a moveable control element. The initial volume has an outer surface defined by a position of the control element. The processor receives input data updating the position of the control element relative to the initial volume; and renders on the display, in place of the initial volume, a further volume of the three-dimensional image, corresponding to a further portion of the anatomical structure and having a further outer surface defined by the updated position of the control element.
-
公开(公告)号：US11013414B2
公开(公告)日：2021-05-25
申请号：US15504057
申请日：2016-05-10
发明人： Ze Shan Yao , Piotr Kuchnio , Michael Frank Gunter Wood , Tammy Kee-Wai Lee , Yanhui Bai , Michael Peter Bulk , Christopher Thomas Jamieson
IPC分类号： A61B5/00 , A61B34/20 , A61B5/026 , G01J3/443 , A61B90/00 , A61B5/06 , G01J3/28 , G01J3/10 , G01J3/02 , A61B90/20 , A61B90/30 , A61B17/34
摘要： A multispectral synchronized imaging system is provided. A multispectral light source of the system includes: blue, green and red LEDs, and one or more non-visible light sources, each being independently addressable and configured to emit, in a sequence: at least visible white light, and non-visible light in one or more given non-visible frequency ranges. The system further includes a camera and an optical filter arranged to filter light received at the camera, by: transmitting visible light from the LEDs; filter out non-visible light from the non-visible light sources; and otherwise transmit excited light emitted by a tissue sample excited by non-visible light. Images acquired by the camera are output to a display device. A control unit synchronizes acquisition of respective images at the camera for each of blue light, green light, visible white light, and excited light received at the camera, as reflected by the tissue sample.
-
-
-
-
-
-
-
-
-
搜索结果
150 条记录 (耗时 0.019 秒)