Patents by Inventor Yanhui BAI
Yanhui BAI 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: 20240108783Abstract: The present disclosure discloses a medical material and a product and preparation method thereof. The medical material comprises a ferroelectric polymer, and optionally further comprises an inorganic ferroelectric particle. The composite membrane is prepared by experiencing at least one of annealing treatment, corona poling treatment, acid treatment, and ultrasonic treatment, and the acid treatment is conducted after the annealing treatment. The present disclosure further relates to a method for treating a composite membrane to regulate an antibacterial activity.Type: ApplicationFiled: September 28, 2023Publication date: April 4, 2024Inventors: Xuehui ZHANG, Xuliang DENG, Jia SONG, Yunyang BAI, Yang LIU, Yanhui LU, Liping WU
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Patent number: 11771325Abstract: A multispectral synchronized imaging system is provided. A multispectral light source of the system comprises: 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 comprises 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.Type: GrantFiled: April 21, 2021Date of Patent: October 3, 2023Inventors: Ze Shan Yao, Piotr Kuchnio, Michael Frank Gunter Wood, Tammy Kee-Wai Lee, Yanhui Bai, Michael Peter Bulk, Christopher Thomas Jamieson
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Patent number: 11331160Abstract: A surgical camera system, and method therefor, is provided which includes a plurality of imaging devices each having a tunable iris configured to change between at least two different sized numerical apertures.Type: GrantFiled: February 9, 2021Date of Patent: May 17, 2022Assignee: SYNAPTIVE MEDICAL INC.Inventors: Siu Wai Jacky Mak, Michael Frank Gunter Wood, Yanhui Bai
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Publication number: 20220039876Abstract: A sensored surgical tool, surgical intraoperative tracking and imaging system incorporating same, and methods, involving a rigid elongate tool body having a substantially rigid tool tip to be displaced and tracked within the surgical cavity so to reproducibly locate the tool tip within the cavity. The tool has one or more tool tip cameras and/or pressure sensors operatively disposed along the body at or proximal to the tool tip.Type: ApplicationFiled: October 13, 2021Publication date: February 10, 2022Applicant: SYNAPTIVE MEDICAL INC.Inventors: Yanhui BAI, Michael Frank Gunter WOOD, Cameron Anthony PIRON
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Patent number: 11172993Abstract: Described are various embodiments of a sensored surgical tool, and surgical intraoperative tracking and imaging system incorporating same. In one embodiment, the surgical tool comprises a rigid elongate tool body having a substantially rigid tool tip to be displaced and tracked within the surgical cavity so to reproducibly locate the tool tip within the cavity. The tool further comprises one or more tool tip cameras and/or pressure sensors operatively disposed along the body at or proximal to the tool tip.Type: GrantFiled: February 14, 2018Date of Patent: November 16, 2021Assignee: SYNAPTIVE MEDICAL INC.Inventors: Yanhui Bai, Michael Frank Gunter Wood, Cameron Anthony Piron
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Publication number: 20210235991Abstract: A multispectral synchronized imaging system is provided. A multispectral light source of the system comprises: 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 comprises 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.Type: ApplicationFiled: April 21, 2021Publication date: August 5, 2021Applicant: SYNAPTIVE MEDICAL INC.Inventors: Ze Shan YAO, Piotr KUCHNIO, Michael Frank Gunter WOOD, Tammy Kee-Wai LEE, Yanhui BAI, Michael Peter BULK, Christopher Thomas JAMIESON
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Publication number: 20210220079Abstract: A surgical camera system, and method therefor, is provided which includes a plurality of imaging devices each having a tunable iris configured to change between at least two different sized numerical apertures.Type: ApplicationFiled: February 9, 2021Publication date: July 22, 2021Inventors: Siu Wai Jacky MAK, Michael Frank Gunter WOOD, Yanhui BAI
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Patent number: 11013414Abstract: 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.Type: GrantFiled: May 10, 2016Date of Patent: May 25, 2021Assignee: SYNAPTIVE MEDICAL INC.Inventors: Ze Shan Yao, Piotr Kuchnio, Michael Frank Gunter Wood, Tammy Kee-Wai Lee, Yanhui Bai, Michael Peter Bulk, Christopher Thomas Jamieson
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Patent number: 10932882Abstract: A surgical camera system is provided which includes a plurality of imaging devices each having a tunable iris configured to change between at least two different sized numerical apertures. A video stream is produced at a frame rate greater than or equal to about 20 frames per second from first and second images produced by respective sensors and tunable irises of at least two of the imaging devices, the tunable irises controlled to different numerical apertures, the first images acquired at a respective first numerical aperture of a first imaging device and the second images acquired at a respective second numerical aperture of a second imaging device, different from the respective first numerical aperture. The video stream alternates between the first images and the second images so that the video stream results in a three-dimensional effect at a display device when the video stream is rendered thereon.Type: GrantFiled: July 3, 2018Date of Patent: March 2, 2021Assignee: SYNAPTIVE MEDICAL (BARBADOS) INC.Inventors: Siu Wai Jacky Mak, Michael Frank Gunter Wood, Yanhui Bai
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Patent number: 10588699Abstract: A medical navigation system is provided, comprising a computing device having a processor coupled to a memory, a tracking camera for tracking medical devices, and a display for displaying an image; an automated arm assembly electrically coupled to the computing device and controlled by a signal provided by the computing device, the automated arm assembly including a multi-joint arm having a distal end connectable to an effector that supports a surgical camera electrically coupled to the computing device; and a medical device having a tracking marker attachable to the medical device.Type: GrantFiled: October 5, 2017Date of Patent: March 17, 2020Assignee: SYNAPTIVE MEDICAL (BARBADOS) INC.Inventors: Joshua Lee Richmond, Brent Andrew Bailey, Stephen B. E. McFadyen, Michael Wood, Abhijit Saxena, Kai Michael Hynna, Yanhui Bai
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Patent number: 10575921Abstract: A camera system for providing images with simultaneous high resolution and large depth of field is provided. The system includes: a camera device having a field of view, the camera device configured to automatically acquire: a first image of the field of view at a first numerical aperture; and a second image of the field of view at a second numerical aperture smaller than the first numerical aperture; an image processing unit configured to combine the first image with the second image into a single image by: extracting a higher-resolution in-focus portion of the first image; and replacing a corresponding lower-resolution portion of the second image with the higher-resolution in-focus portion of the first image; and, a display device in communication with the image processing unit, the display device configured to render the single image.Type: GrantFiled: December 1, 2016Date of Patent: March 3, 2020Assignee: SYNAPTIVE MEDICAL (BARBADOS) INC.Inventors: Kresimir Franjic, Kai Hynna, Yanhui Bai, Michael Frank Gunter Wood, Michael Peter Bulk, Tammy Kee-Wai Lee
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Patent number: 10144637Abstract: A medical navigation system is provided. The medical navigation system includes a computing device having a processor coupled to a memory, a wireless communication component and a display for displaying an image. The medical navigation system further includes a sensor module attached to a medical device. The sensor module includes a housing for housing components of the sensor module and for attaching to the medical device, a processor housed in the housing, a memory coupled to the processor, a wireless communication component coupled to the processor, a battery coupled to the processor, and a sensor coupled to the processor. The sensor generates a signal to be transmitted wirelessly via the sensor module wireless communication component and receivable by the computing device wireless communication component, the signal representing movement of the medical device.Type: GrantFiled: November 25, 2014Date of Patent: December 4, 2018Assignee: SYNAPTIVE MEDICAL (BARBADOS) INC.Inventors: Yanhui Bai, Cameron Piron, Michael Wood, Thanh Vuong, Kelly Dyer, Gal Sela, Alex Panther
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Publication number: 20180325620Abstract: A surgical camera system is provided which includes a plurality of imaging devices each having a tunable iris configured to change between at least two different sized numerical apertures. A video stream is produced at a frame rate greater than or equal to about 20 frames per second from first and second images produced by respective sensors and tunable irises of at least two of the imaging devices, the tunable irises controlled to different numerical apertures, the first images acquired at a respective first numerical aperture of a first imaging device and the second images acquired at a respective second numerical aperture of a second imaging device, different from the respective first numerical aperture. The video stream alternates between the first images and the second images so that the video stream results in a three-dimensional effect at a display device when the video stream is rendered thereon.Type: ApplicationFiled: July 3, 2018Publication date: November 15, 2018Inventors: Siu Wai Jacky Mak, Michael Frank Gunter Wood, Yanhui Bai
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Publication number: 20180243045Abstract: A camera system for providing images with simultaneous high resolution and large depth of field is provided. The system includes: a camera device having a field of view, the camera device configured to automatically acquire: a first image of the field of view at a first numerical aperture; and a second image of the field of view at a second numerical aperture smaller than the first numerical aperture; an image processing unit configured to combine the first image with the second image into a single image by: extracting a higher-resolution in-focus portion of the first image; and replacing a corresponding lower-resolution portion of the second image with the higher-resolution in-focus portion of the first image; and, a display device in communication with the image processing unit, the display device configured to render the single image.Type: ApplicationFiled: December 1, 2016Publication date: August 30, 2018Inventors: Kresimir FRANJIC, Kai HYNNA, Yanhui BAI, Michael Frank Gunter WOOD, Michael Peter BULK, Tammy Kee-Wai LEE
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Patent number: 10052162Abstract: A medical imaging system for illuminating tissue samples using three-dimensional structured illumination microscopy is port-based surgery is provided. The system comprises: an image sensor; a mirror device; zoom optics; a light modulator; a processor; and collimating optics configured to convey one or more images from the modulator to the mirror, the mirror configured to convey the images to the zoom optics, the zoom optics configured: to convey the image(s) from the mirror to a tissue sample; and convey one or more resulting images, formed by the image(s) illuminating the sample, back to the mirror, which conveys the resulting image(s) from the zoom optics to the image sensor, and, the processor configured to control the modulator to form the image(s), the image(s) including at least one pattern selected to interact with the sample to generate different depth information in each of resulting image(s).Type: GrantFiled: August 24, 2015Date of Patent: August 21, 2018Assignee: SYNAPTIVE MEDICAL (BARBADOS) INC.Inventors: Yanhui Bai, Michael Frank Gunter Wood, Siu Wai Jacky Mak, Murugathas Yuwaraj, Alexander Gyles Panther, Sean Jy-Shyang Chen
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Publication number: 20180228553Abstract: Described are various embodiments of a sensored surgical tool, and surgical intraoperative tracking and imaging system incorporating same. In one embodiment, the surgical tool comprises a rigid elongate tool body having a substantially rigid tool tip to be displaced and tracked within the surgical cavity so to reproducibly locate the tool tip within the cavity. The tool further comprises one or more tool tip cameras and/or pressure sensors operatively disposed along the body at or proximal to the tool tip.Type: ApplicationFiled: February 14, 2018Publication date: August 16, 2018Inventors: Yanhui BAI, Michael Frank Gunter WOOD, Cameron Anthony PIRON
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Patent number: 10038846Abstract: A surgical camera system with automatic alternation between two depths of field is provided, comprising: a tunable iris configured to automatically alternate between a first depth of field (“DOF”) and a second DOF larger than the first DOF; one or more lenses configured to collect light using the iris; a body containing the iris and at least a portion of the lenses; a sensor configured to produce images from the light; a video processing unit configured to: produce an image stream from first images and second images produced by the sensor from the light, the first images acquired at the first DOF and the second images acquired at the second DOF; and adjust one or more lighting parameters of the first images and the second images prior to producing the image stream; and, a display device in communication with the video processing unit, configured to render the image stream.Type: GrantFiled: March 9, 2015Date of Patent: July 31, 2018Assignee: SYNAPTIVE MEDICAL (BARBADOS) INC.Inventors: Siu Wai Jacky Mak, Michael Frank Gunter Wood, Yanhui Bai
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Publication number: 20180153408Abstract: 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.Type: ApplicationFiled: May 10, 2016Publication date: June 7, 2018Inventors: Ze Shan YAO, Piotr KUCHNIO, Michael Frank Gunter WOOD, Tammy Kee-Wai LEE, Yanhui BAI, Michael Peter BULK, Christopher Thomas JAMIESON
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Publication number: 20180055578Abstract: A medical navigation system is provided, comprising a computing device having a processor coupled to a memory, a tracking camera for tracking medical devices, and a display for displaying an image; an automated arm assembly electrically coupled to the computing device and controlled by a signal provided by the computing device, the automated arm assembly including a multi-joint arm having a distal end connectable to an effector that supports a surgical camera electrically coupled to the computing device; and a medical device having a tracking marker attachable to the medical device.Type: ApplicationFiled: October 5, 2017Publication date: March 1, 2018Inventors: Joshua Lee RICHMOND, Brent Andrew BAILEY, Stephen B.E. MCFADYEN, Michael WOOD, Abhijit SAXENA, Kai Michael HYNNA, Yanhui BAI
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Publication number: 20180035053Abstract: A surgical camera system with automatic alternation between two depths of field is provided, comprising: a tunable iris configured to automatically alternate between a first depth of field (“DOF”) and a second DOF larger than the first DOF; one or more lenses configured to collect light using the iris; a body containing the iris and at least a portion of the lenses; a sensor configured to produce images from the light; a video processing unit configured to: produce an image stream from first images and second images produced by the sensor from the light, the first images acquired at the first DOF and the second images acquired at the second DOF; and adjust one or more lighting parameters of the first images and the second images prior to producing the image stream; and, a display device in communication with the video processing unit, configured to render the image stream.Type: ApplicationFiled: March 9, 2015Publication date: February 1, 2018Inventors: Siu Wai Jacky MAK, Michael Frank Gunter WOOD, Yanhui BAI