Invention Grant
- Patent Title: Method and apparatus for quantitative and depth resolved hyperspectral fluorescence and reflectance imaging for surgical guidance
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Application No.: US15044097Application Date: 2016-02-15
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Publication No.: US11510600B2Publication Date: 2022-11-29
- Inventor: Pablo Valdes , Frederic Leblond , Keith D. Paulsen , Brian Campbell Wilson , David W. Roberts , Michael Jermyn
- Applicant: The Trustees of Dartmouth College
- Applicant Address: US NH Hanover
- Assignee: The Trustees of Dartmouth College
- Current Assignee: The Trustees of Dartmouth College
- Current Assignee Address: US NH Hanover
- Agency: Lathrop GPM LLP
- Main IPC: A61B5/1455
- IPC: A61B5/1455 ; A61B5/1459 ; A61B1/04 ; A61B5/145 ; A61B5/00 ; A61B5/1495 ; A61B1/06 ; A61B1/00 ; A61B5/055 ; G01J3/28 ; A61B1/05 ; G01J3/12 ; G01J3/02 ; A61B1/07 ; A61B1/313

Abstract:
An imaging system, such as a surgical microscope, laparoscope, or endoscope or integrated with these devices, includes an illuminator providing patterned white light and/or fluorescent stimulus light. The system receives and images light hyperspectrally, in embodiments using a hyperspectral imaging array, and/or using narrowband tunable filters for passing filtered received light to an imager. Embodiments may construct a 3-D surface model from stereo images, and will estimate optical properties of the target using images taken in patterned light or using other approximations obtained from white light exposures. Hyperspectral images taken under stimulus light are displayed as fluorescent images, and corrected for optical properties of tissue to provide quantitative maps of fluorophore concentration. Spectral information from hyperspectral images is processed to provide depth of fluorophore below the tissue surface. Quantitative images of fluorescence at depth are also prepared. The images are displayed to a surgeon for use in surgery.
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