Device for the qualitative evaluation of human organs
View Patent ↗The system for the qualitative evaluation of human organs includes: a camera ( 101 ) for capturing an image of the organ, the organ being in the donor's body or already collected or placed in a hypothermic, normothermic and/or subnormothermic graft infusion machine at the time of image capture; an image processor ( 103, 104 ) configured to extract at least a portion of the organ image from the captured image and an estimator ( 103, 104 ) for estimating, from the extracted image, the health of the organ. In some embodiments, the device also includes a means of introducing into the donor's body at least one optical window of the image capture means as well as a light source to illuminate the donor's organ, while maintaining the sterility of the surgical field. In some embodiments, the image processor involves applying a clipping mask to the captured image.
1. A device for the qualitative evaluation of a liver, comprising:
a camera for capturing light in the visible spectrum reflected from a visually exposed liver, said camera is configured to obtain an image of said liver by color photography or color videorecording, the liver being visually exposed in a donor's body or already collected or placed in a hypothermic, normothermic and/or subnormothermic graft perfusion machine at the time of image capture;
a sterile cover configured to contain the camera as well as a light source for illuminating the donor's organ, while maintaining the sterility of the surgical field, said sterile cover including a transparent image capture window to be positioned in front of a lens of the camera:
an image processor configured for applying a trimming mask to the captured image, said trimming mask comprising a trimming portion corresponding to the brightest image portions, which correspond to reflections of the light emitted by the light source on the liver, to obtain a trimmed image,
said image processor is further configured to extract at least a portion of the liver's image from the trimmed image and to determine at least the color of the liver; and,
means for estimating, from the extracted image, the steatosis rate of the liver based at least on the color of the liver.
2. A device according to claim 1 , wherein said image processing is configured to generate the trimming mask by processing the colors and/or contours in the captured image.
3. A device according to claim 1 , wherein the image processor is configured to detect at least one reflection on the surface of the liver in the captured image and to extract from the image at least one area having such reflection.
4. A device according to claim 1 , wherein the image processor is configured for making a color histogram and comparing at least one color of said histogram with a standardized color.
5. A device according to claim 4 , wherein each standardized color is carried by a color chart introduced into the field of the captured image.
6. A device according to claim 1 , wherein the image processor is configured for performing texture sampling and comparing at least one texture with a reference texture.
7. A device according to claim 1 , wherein the camera for capturing an image is a mobile phone.
8. A device according to claim 1 , wherein the camera for capturing an image includes a flash light source and is configured to capture an image with triggering of the light source.
9. A device according to claim 1 , wherein the sterile cover comprises a first polarizing filter to be positioned opposite a light source and a second polarizing filter to be positioned opposite the lens of the camera.