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Devices, systems, and methods for tumor visualization and removal

Grant US12575735B2 Kind: B2 Mar 17, 2026

Assignee

SBI ALAPHARMA CANADA INC.

Inventors

Ralph S. Dacosta, Kathryn Ottolino-Perry, Christopher Gibson, Nayana Thalanki Anantha, Simon Treadwell, Todd Daynes, Todd Meaney, Garrett Vermey, Carl Annis

Abstract

An imaging device includes a body having a first end portion configured to be held in a user's hand and a second end portion configured to direct light onto a surgical margin. The device includes at least one excitation light source configured to excite autofluorescence emissions of tissue cells and fluorescence emissions of induced porphyrins in tissue cells of the surgical margin. A white light source is configured to illuminate the surgical margin during white light imaging of the surgical margin. The device includes an imaging sensor, a first optical filter configured to permit passage of autofluorescence emissions of tissue cells and fluorescence emissions of the induced porphyrins in tissue cells to the imaging sensor, and a second optical filter configured to permit passage of white light emissions of tissues in the surgical margin to the imaging sensor. Systems and methods relate to imaging devices.

CPC Classifications

A61B 5/0071 A61B 5/0091 A61B 2562/0242 A61B 1/043 A61B 2090/309

Filing Date

2020-01-17

Application No.

17423609

Claims

95