Patents by Inventor Joachim W. Boehm
Joachim W. Boehm 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: 20190082963Abstract: A fluorescence endoscopy video system includes a multimode light source for producing white light, fluorescence excitation light, or fluorescence excitation light with a reference reflectance light. An endoscope directs light to illuminate a tissue sample and collects reflected light or fluorescence light produced by the tissue. A camera includes a high sensitivity color image sensor having a plurality of pixel elements. Each of the pixel elements has an integrated filter configured to block reflected excitation light from reaching the pixel elements and allow fluorescence and reflectance light to reach the pixel elements. A processor receives image signals from the image sensor, combines image signals from a first group of pixel elements to form a first image formed by fluorescence light, and combines image signals from a second group of pixel elements to form a second image formed by reflectance light. A video monitor simultaneously superimposes the first and second images.Type: ApplicationFiled: April 9, 2018Publication date: March 21, 2019Applicant: Novadaq Technologies ULCInventors: Richard W. CLINE, John J.P. FENGLER, Joachim W. BOEHM
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Patent number: 9968244Abstract: A fluorescence endoscopy video system includes a multimode light source for producing white light, fluorescence excitation light, or fluorescence excitation light with a reference reflectance light. An endoscope directs light to illuminate a tissue sample and collects reflected light or fluorescence light produced by the tissue. A camera includes a high sensitivity color image sensor having a plurality of pixel elements. Each of the pixel elements has an integrated filter configured to block reflected excitation light from reaching the pixel elements and allow fluorescence and reflectance light to reach the pixel elements. A processor receives image signals from the image sensor, combines image signals from a first group of pixel elements to form a first image formed by fluorescence light, and combines image signals from a second group of pixel elements to form a second image formed by reflectance light. A video monitor simultaneously superimposes the first and second images.Type: GrantFiled: February 23, 2015Date of Patent: May 15, 2018Assignee: NOVADAQ TECHNOLOGIES ULCInventors: Richard W. Cline, John J. P. Fengler, Joachim W. Boehm
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Publication number: 20150230698Abstract: A fluorescence endoscopy video system includes a multimode light source for producing white light, fluorescence excitation light, or fluorescence excitation light with a reference reflectance light. An endoscope directs light to illuminate a tissue sample and collects reflected light or fluorescence light produced by the tissue. A camera includes a high sensitivity color image sensor having a plurality of pixel elements. Each of the pixel elements has an integrated filter configured to block reflected excitation light from reaching the pixel elements and allow fluorescence and reflectance light to reach the pixel elements. A processor receives image signals from the image sensor, combines image signals from a first group of pixel elements to form a first image formed by fluorescence light, and combines image signals from a second group of pixel elements to form a second image formed by reflectance light. A video monitor simultaneously superimposes the first and second images.Type: ApplicationFiled: February 23, 2015Publication date: August 20, 2015Inventors: Richard W. Cline, John J.P. Fengler, Joachim W. Boehm
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Patent number: 8961403Abstract: A fluorescence endoscopy video system includes a multimode light source that produces light for color and fluorescence imaging modes. Light from the light source is transmitted through an endoscope to the tissue under observation. The system also includes a compact camera for color and fluorescence imaging. Images obtained through the endoscope are optically divided and projected onto one or more image sensors by a fixed beam splitter in the camera. The fixed beam splitter eliminates the need for inserting a movable mirror into the light path between the endoscope and the image sensors. Image signals from the camera are processed in the system processor/controller where a contrast enhancement function can be applied. The contrast enhancement function increases the color contrast between normal tissue and tissue suspicious for early cancer. Finally, the system also includes a calibration feature whereby the system performance can be maintained when used with different endoscopes.Type: GrantFiled: April 16, 2010Date of Patent: February 24, 2015Assignee: Novadaq Technologies Inc.Inventors: Richard W. Cline, John J. P. Fengler, Joachim W. Boehm
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Publication number: 20100210904Abstract: A fluorescence endoscopy video system includes a multimode light source that produces light for color and fluorescence imaging modes. Light from the light source is transmitted through an endoscope to the tissue under observation. The system also includes a compact camera for color and fluorescence imaging. Images obtained through the endoscope are optically divided and projected onto one or more image sensors by a fixed beam splitter in the camera. The fixed beam splitter eliminates the need for inserting a movable mirror into the light path between the endoscope and the image sensors. Image signals from the camera are processed in the system processor/controller where a contrast enhancement function can be applied. The contrast enhancement function increases the color contrast between normal tissue and tissue suspicious for early cancer. Finally, the system also includes a calibration feature whereby the system performance can be maintained when used with different endoscopes.Type: ApplicationFiled: April 16, 2010Publication date: August 19, 2010Applicant: Novadaq Technologies Inc.Inventors: Richard W. Cline, John J.P. Fengler, Joachim W. Boehm
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Publication number: 20100198010Abstract: A fluorescence endoscopy video system includes a multimode light source that produces light for color and fluorescence imaging modes. Light from the light source is transmitted through an endoscope to the tissue under observation. The system also includes a compact camera for color and fluorescence imaging. Images obtained through the endoscope are optically divided and projected onto one or more image sensors by a fixed beam splitter in the camera. The fixed beam splitter eliminates the need for inserting a movable mirror into the light path between the endoscope and the image sensors. Image signals from the camera are processed in the system processor/controller where a contrast enhancement function can be applied. The contrast enhancement function increases the color contrast between normal tissue and tissue suspicious for early cancer. Finally, the system also includes a calibration feature whereby the system performance can be maintained when used with different endoscopes.Type: ApplicationFiled: April 16, 2010Publication date: August 5, 2010Applicant: Novadaq Technologies Inc.Inventors: Richard W. Cline, John J.P. Fengler, Joachim W. Boehm
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Patent number: 7722534Abstract: A fluorescence endoscopy video system includes a multimode light source that produces light for color and fluorescence imaging modes. Light from the light source is transmitted through an endoscope to the tissue under observation. The system also includes a compact camera for color and fluorescence imaging. Images obtained through the endoscope are optically divided and projected onto one or more image sensors by a fixed beam splitter in the camera. The fixed beam splitter eliminates the need for inserting a movable mirror into the light path between the endoscope and the image sensors. Image signals from the camera are processed in the system processor/controller where a contrast enhancement function can be applied. The contrast enhancement function increases the color contrast between normal tissue and tissue suspicious for early cancer. Finally, the system also includes a calibration feature whereby the system performance can be maintained when used with different endoscopes.Type: GrantFiled: January 7, 2008Date of Patent: May 25, 2010Assignee: Novadaq Technologies, Inc.Inventors: Richard W Cline, John J. P. Fengler, Joachim W. Boehm
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Publication number: 20080228037Abstract: A fluorescence endoscopy video system includes a multimode light source that produces light for color and fluorescence imaging modes. Light from the light source is transmitted through an endoscope to the tissue under observation. The system also includes a compact camera for color and fluorescence imaging. Images obtained through the endoscope are optically divided and projected onto one or more image sensors by a fixed beam splitter in the camera. The fixed beam splitter eliminates the need for inserting a movable mirror into the light path between the endoscope and the image sensors. Image signals from the camera are processed in the system processor/controller where a contrast enhancement function can be applied. The contrast enhancement function increases the color contrast between normal tissue and tissue suspicious for early cancer. Finally, the system also includes a calibration feature whereby the system performance can be maintained when used with different endoscopes.Type: ApplicationFiled: January 7, 2008Publication date: September 18, 2008Applicant: Novadaq Technologies Inc.Inventors: Richard W. Cline, John J.P. Fengler, Joachim W. Boehm
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Patent number: 7420151Abstract: A system for performing short wavelength imaging with a broadband illumination source includes an image processor that receives signals from a color image sensor. The image processor reduces the contribution of red illumination light to an image by computing blue, green, and blue-green (cyan) color components of display pixels from the signals received from the image sensor. The blue, green, and cyan color component values are coupled to inputs of a color monitor for display to produce a false color image of the tissue.Type: GrantFiled: October 10, 2006Date of Patent: September 2, 2008Assignee: Novadaq Technologies Inc.Inventors: John J. P. Fengler, Paul R. Westwick, Joachim W. Boehm
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Patent number: 7341557Abstract: A fluorescence endoscopy video system includes a multimode light source that produces light for color and fluorescence imaging modes. Light from the light source is transmitted through an endoscope to the tissue under observation. The system also includes a compact camera for color and fluorescence imaging. Images obtained through the endoscope are optically divided and projected onto one or more image sensors by a fixed beam splitter in the camera. The fixed beam splitter eliminates the need for inserting a movable mirror into the light path between the endoscope and the image sensors. Image signals from the camera are processed in the system processor/controller where a contrast enhancement function can be applied. The contrast enhancement function increases the color contrast between normal tissue and tissue suspicious for early cancer. Finally, the system also includes a calibration feature whereby the system performance can be maintained when used with different endoscopes.Type: GrantFiled: July 26, 2004Date of Patent: March 11, 2008Assignee: Novadaq Technologies Inc.Inventors: Richard W. Cline, John J. P. Fengler, Joachim W. Boehm
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Patent number: 6821245Abstract: A fluorescence endoscopy video system includes a multimode light source that produces light for color and fluorescence imaging modes. Light from the light source is transmitted through an endoscope to the tissue under observation. The system also includes a compact camera for color and fluorescence imaging. Images obtained through the endoscope are optically divided and projected onto one or more image sensors by a fixed beam splitter in the camera. The fixed beam splitter eliminates the need for inserting a movable mirror into the light path between the endoscope and the image sensors. Image signals from the camera are processed in the system processor/controller where a contrast enhancement function can be applied. The contrast enhancement function increases the color contrast between normal tissue and tissue suspicious for early cancer. Finally, the system also includes a calibration feature whereby the system performance can be maintained when used with different endoscopes.Type: GrantFiled: July 13, 2001Date of Patent: November 23, 2004Assignee: Xillix Technologies CorporationInventors: Richard W. Cline, John J. P. Fengler, Joachim W. Boehm
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Publication number: 20020035330Abstract: A fluorescence endoscopy video system includes a multimode light source that produces light for color and fluorescence imaging modes. Light from the light source is transmitted through an endoscope to the tissue under observation. The system also includes a compact camera for color and fluorescence imaging. Images obtained through the endoscope are optically divided and projected onto one or more image sensors by a fixed beam splitter in the camera. The fixed beam splitter eliminates the need for inserting a movable mirror into the light path between the endoscope and the image sensors. Image signals from the camera are processed in the system processor/controller where a contrast enhancement function can be applied. The contrast enhancement function increases the color contrast between normal tissue and tissue suspicious for early cancer. Finally, the system also includes a calibration feature whereby the system performance can be maintained when used with different endoscopes.Type: ApplicationFiled: July 13, 2001Publication date: March 21, 2002Applicant: Xillix Technologies CorporationInventors: Richard W. Cline, John J.P. Fengler, Joachim W. Boehm