Compact fluorescence endoscopy video system
First Claim
1. A fluorescence endoscopy video system including:
- a multimode light source configured to switch between a first mode for producing white light, a second mode for producing fluorescence excitation light distinct from white light, and a third mode for producing fluorescence excitation light with a reference reflectance light;
an endoscope for directing light from the light source to a patient to illuminate a tissue sample and to collect the reflected light or fluorescence light produced by the tissue;
a camera positioned to receive the light collected by the endoscope including;
a high sensitivity color image sensor having a plurality of pixel elements, each of the pixel elements having an integrated filter, the integrated filters being configured to block reflected excitation light from reaching the pixel elements and allow fluorescence light and reflectance light to reach the pixel elements, andat least one optical imaging component that projects superimposed fluorescence and reflectance images onto the high sensitivity color image sensor in the third mode;
a processor that receives image signals from the high sensitivity color image sensor and (i) combines image signals from a first group of the pixel elements having integrated filters with a first filter characteristic to form a first image formed by the fluorescence light, and (ii) combines image signals from a second group of the pixel elements having integrated filters with a second filter characteristic to form a second image formed by the reflectance light; and
a video monitor for simultaneously superimposing the first image and the second image.
18 Assignments
0 Petitions
Accused Products
Abstract
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.
-
Citations
18 Claims
-
1. A fluorescence endoscopy video system including:
-
a multimode light source configured to switch between a first mode for producing white light, a second mode for producing fluorescence excitation light distinct from white light, and a third mode for producing fluorescence excitation light with a reference reflectance light; an endoscope for directing light from the light source to a patient to illuminate a tissue sample and to collect the reflected light or fluorescence light produced by the tissue; a camera positioned to receive the light collected by the endoscope including; a high sensitivity color image sensor having a plurality of pixel elements, each of the pixel elements having an integrated filter, the integrated filters being configured to block reflected excitation light from reaching the pixel elements and allow fluorescence light and reflectance light to reach the pixel elements, and at least one optical imaging component that projects superimposed fluorescence and reflectance images onto the high sensitivity color image sensor in the third mode; a processor that receives image signals from the high sensitivity color image sensor and (i) combines image signals from a first group of the pixel elements having integrated filters with a first filter characteristic to form a first image formed by the fluorescence light, and (ii) combines image signals from a second group of the pixel elements having integrated filters with a second filter characteristic to form a second image formed by the reflectance light; and a video monitor for simultaneously superimposing the first image and the second image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
Specification