Medical imaging device with camera magnification management system

Abstract

The subject matter disclosed in the present invention discloses a medical imaging device comprising at least two cameras. The medical imaging device comprises an elongated and narrow distal tip connected to a rigid elongated shaft member, wherein the distal tip can comprise a front camera and a first side camera. The cameras of the disclosed medical imaging device can be configured to provide variable cameras' magnifications, which in some cases may vary from one camera to another. The distal tip can comprise some optical gear required for the medical procedures. The optical gear located in the distal tip can comprise cameras, lenses and light sources required for the camera functioning. The cameras of the medical imaging device may be provided with dissimilarity in the cameras' magnification factors. Such dissimilarities are used to show the same object in the same size in a panoramic image captured simultaneously by multiple cameras, as the multiple cameras have multiple distances to the object. In some cases, the dissimilarity in the cameras' magnification factors may be achieved by cameras with lenses, or in some cases, lens assemblies characterized by different focal lengths. In some cases, the dissimilarity in the cameras' magnification factors may be achieved by cameras with sensors characterized by different sizes.

1 . A medical imaging device comprising at least two cameras, each camera of the at least two cameras comprises a lens assembly and a sensor for capturing a predefined field of view;
 wherein each of the at least two cameras has a field of view, wherein the fields of view of the at least two cameras have an overlapping section;   wherein each camera of the at least two cameras having a different sensor size   wherein a difference between the sensor sizes of the at least two cameras is configured to achieve a dissimilarity of magnification factors of the at least two cameras, the dissimilarity of magnification factors compensates on a difference in distances between each camera of the at least two cameras and an object seen at the overlapping section area between a horizontal field of view of the at least two cameras, wherein the object is displayed at similar sizes in a display of a continuous panoramic view.   
     
     
         2 . The medical imaging device of  claim 1 , wherein the object is located at a distance larger than 11 millimeters from one of the at least two cameras. 
     
     
         3 . The medical imaging device of  claim 1 , further comprises
 a rigid elongated member;   a distal tip directly connected to the rigid elongated member, said distal tip comprises the at least two cameras, wherein the at least two cameras comprise
 a front camera, wherein the front camera comprises a lens assembly and a front size sensor providing a front camera magnification factor, wherein the front camera is located on a front planar surface of the distal tip and provided a horizontal field of view and; 
 a first side camera, wherein the first side camera comprises a lens assembly and a sensor, wherein the first side camera sensor is provided with a different size to the front camera sensor and providing a first side magnification factor, wherein the first side camera is located on a lateral surface of the distal tip and positioned 5 to 10 millimeters from the front planar surface of the distal tip and provides a horizontal field of view; 
   wherein the object is closer to the front camera than to the first side camera, and a controller designed to receive the object simultaneously captured by the first side camera and the front camera and display the continuous panoramic view formed by the field of view captured by the front camera and the field of view captured by the first side camera for the object which is located at a distance larger than 11 millimeters from said front and first side cameras.   
     
     
         4 . The medical imaging device of  claim 3 , further comprising a second side camera, wherein the second side camera comprises a lens assembly and a sensor, wherein the second side camera sensor is provided with a different size to the front camera sensor and providing a second side magnification factor, wherein the second side camera is located on a lateral surface of the distal tip in opposite side to the first side camera and provides a horizontal field of view, wherein the first side camera is positioned closer to the front planar surface of the distal tip than the second side camera;
 wherein differences between the front camera sensor size and the second side camera sensor size resulting with dissimilar magnification factors between the front camera and the second side camera, wherein an object seen at an overlap area between the front camera horizontal field of view and the second side camera horizontal field of view is displayed at similar sizes in a display of the continuous panoramic view, wherein the object is closer to the front camera than to the second side camera 
 
     
     
         5 . The medical imaging device of  claim 4 , wherein the second side magnification factor is different from the front camera magnification factor and configured to simultaneously capture objects to further be displayed on the image monitor at similar sizes. 
     
     
         6 . The medical imaging device of  claim 3 , wherein the first side camera magnification factor has a larger value than the magnification factor of the front camera for the object located at a distance of 15 to 150 millimeters from said front and first side camera. 
     
     
         7 . The medical imaging device of  claim 6 , wherein the first side magnification factor is twice larger than the magnification factor of the front camera for the object located at a distance of 15 to 150 millimeters from said front and first side camera. 
     
     
         8 . The medical imaging device of  claim 6 , wherein the second side magnification factor has a larger value than the magnification factor of the front camera for the object located at a distance of 15 to 150 millimeters from said front and second side camera. 
     
     
         9 . The medical imaging device of  claim 6 , wherein the second side magnification factor is twice larger than the magnification factor of the front camera for the object located at a distance of 15 to 150 millimeters from said front and second side camera. 
     
     
         10 . The medical imaging device of  claim 4 , wherein the second side camera horizontal field of view is between 80-120 degrees. 
     
     
         11 . The medical imaging device of  claim 3 , wherein the first side camera has a horizontal field of view of between 80-120 degrees. 
     
     
         12 . The medical imaging device of  claim 3 , wherein the front camera horizontal field of view is between 80-120 degrees. 
     
     
         13 . The medical imaging device of  claim 3 , wherein the medical imaging device is connected to a system configured to display the view captured by the first side camera and the front side camera, in a unified and continuous panoramic view. 
     
     
         14 . The medical imaging device of  claim 13 , wherein the controller is configured to utilize a digital zoom for adjusting the magnification factors of the at least two cameras.