Catadioptric medical imaging system for observing the inside wall of a surgical cavity
The invention relates to a catadioptric medical imaging system ( 1 ), in particular a surgical microscope ( 2 ). During surgery, it may be necessary to gain more information about a surgical cavity ( 6 ), in particular the type of tissue ( 29 ) at the inside walls ( 4 ) of the surgical cavity ( 6 ). To solve this problem, the catadioptric medical imaging system ( 1 ) according to the invention comprises a camera device ( 8 ) and a convex catoptric mirror ( 20 ) adapted to be inserted into the surgical cavity ( 6 ). The catoptric mirror ( 20 ) is mounted on an arm ( 22 ) and spaced apart from the camera device ( 8 ).
1. A catadioptric medical imaging system ( 1 ) for observing an inside wall ( 4 ) of a surgical cavity ( 6 ), the catadioptric medical imaging system ( 1 ) comprising:
a camera device ( 8 );
a convex catoptric mirror ( 20 ) spaced from the camera device ( 8 ), wherein the catoptric mirror ( 20 ) is adapted to be inserted into the surgical cavity ( 6 );
a correction module ( 46 ) adapted to correct distortion of the catoptric mirror ( 20 ); and
an image processor ( 52 ), wherein the correction module ( 46 ) is a part of the image processor ( 52 ).
2. The catadioptric medical imaging system ( 1 ) according to claim 1 , wherein the catoptric mirror ( 20 ) is a fish-eye mirror.
3. The catadioptric medical imaging system ( 1 ) according to claim 1 , wherein the catoptric mirror ( 20 ) includes a marker ( 74 ) which differs from immediate surroundings of the marker ( 74 ) in at least one of reflectance, fluorescence, and transparency.
4. The catadioptric medical imaging system ( 1 ) according to claim 3 , wherein the marker ( 74 ) reflects and/or emits light outside the visible light spectrum.
5. The catadioptric medical imaging system ( 1 ) according to claim 4 , further comprising a controller ( 36 ) adapted to automatically adjust a field of view ( 24 ) of the camera device ( 8 ) to the catoptric mirror ( 20 ) based on the marker ( 74 ).
6. The catadioptric medical imaging system ( 1 ) according to claim 1 , further comprising a light source ( 76 ) carried by the catoptric mirror ( 20 ).
7. The catadioptric medical imaging system ( 1 ) according to claim 1 , further comprising a controller ( 36 ) adapted to automatically adjust a field of view ( 24 ) of the camera device ( 8 ) to the catoptric mirror ( 20 ).
8. The catadioptric medical imaging system ( 1 ) according to claim 7 , wherein the controller ( 36 ) is adapted to automatically fill the field of view ( 24 ) of the camera device ( 8 ) with the catoptric mirror ( 20 ).
9. The catadioptric medical imaging system ( 1 ) according to claim 1 , further comprising an arm ( 22 ), wherein the catoptric mirror ( 20 ) is mounted to the arm ( 22 ).
10. The catadioptric medical imaging system ( 1 ) according to claim 1 , further comprising a drive system ( 30 ) adapted to move the catoptric mirror ( 20 ) relative to the camera device ( 8 ).
11. The catadioptric medical imaging system ( 1 ) according to claim 1 , wherein the medical imaging system ( 1 ) is a surgical microscope ( 2 ).
12. A catadioptric medical imaging system ( 1 ) for observing an inside wall ( 4 ) of a surgical cavity ( 6 ), the catadioptric medical imaging system ( 1 ) comprising:
a camera device ( 8 );
a convex catoptric mirror ( 20 ) spaced from the camera device ( 8 ), wherein the catoptric mirror ( 20 ) is adapted to be inserted into the surgical cavity ( 6 ); and
a correction module ( 46 ) adapted to correct distortion of the catoptric mirror ( 20 ), wherein the correction module ( 46 ) comprises correction optics ( 48 ) arranged between the camera device ( 8 ) and the catoptric mirror ( 20 ).
13. A method of imaging an inside wall ( 4 ) of a surgical cavity ( 6 ), comprising the steps of:
inserting a convex catoptric mirror ( 20 ) into the surgical cavity ( 6 );
arranging the catoptric mirror ( 20 ) in a field of view ( 24 ) of a camera device ( 8 ); and
correcting distortion of the catoptric mirror ( 20 ) in a correction module ( 46 ), wherein the correction module ( 46 ) is a part of an image processor ( 52 ).