Provided is an endoscope that can suppress increase in the temperature of a distal end portion of an insertion section while preventing increase in the number of components and increase in the diameter of the distal end portion. An endoscope includes: a distal end portion body that is provided on a distal end side of an insertion section and that has a distal end, a proximal end, and a longitudinal axis; a treatment tool lead-out port that is formed in the distal end portion body and that leads out a treatment tool inserted through an inside of the insertion section; an elevator support member that is provided in the distal end portion body, that is made of a metal, and that rotatably supports an elevator that controls a lead-out direction in which the treatment tool is led out from the treatment tool lead-out port; a light guide that is inserted through the inside of the insertion section and that emits illumination light through an illumination window formed in the distal end portion body; and a light guide holding portion that is provided in the elevator support member and that holds a light guide distal end portion of the light guide on the illumination window side.

Provided is an endoscope capable of reliably illuminating a treatment tool delivered from a treatment tool delivery port and a treatment target region thereof.

An endoscope includes a distal end part body that is provided on a distal end side of an insertion part and has a distal end, a proximal end, and a longitudinal axis; the treatment tool delivery port that is formed in the distal end part body and delivers the treatment tool inserted into the insertion part; an elevator that is rotatably supported in the treatment tool delivery port of the distal end part body and controls a delivery direction of the treatment tool delivered from the treatment tool delivery port; and a first illumination window that is provided on the distal end part body. The first illumination window is provided in a proximal end side region at a position shifted from the treatment tool delivery port to a proximal end side of the distal end part body in the distal end part body.

A circuit board design uses CMOS sensors for the tip section of a multi-viewing element endoscope. Side sensors and their optical assemblies are assembled to a common base board to save space. Individual base boards are separately constructed, inserted into grooves of a main base board, and are further connected to the main base board by means of flexible circuit boards.

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.

An image scanning and displaying system for eliminating color differences is revealed. The system includes an image scanner and a display screen with a second emission spectrum. The image scanner consists of an optoelectronic image capturing and forming system, a plurality of first light sources disposed around the optoelectronic image capturing and forming system and a control module. The first light sources have a first emission spectrum which is a white light composed of a plurality of wavebands with different peak wavelengths. The control module controls the optoelectronic image capturing and forming system to take monochrome images in different colors in time sequence. The second emission spectrum has the same characteristics as the first emission spectrum.

An image scanning, displaying and lighting system for eliminating color differences is revealed. The system includes an image scanner, a display screen with a second emission spectrum and a lighting device with a third emission spectrum. The image scanner consists of an optoelectronic image capturing and forming system, a plurality of first light sources disposed around the optoelectronic image capturing and forming system and a control module. The first light sources have a first emission spectrum which is a white light composed of a plurality of wavebands with different peak wavelengths. The control module controls the optoelectronic image capturing and forming system to take monochrome images in different colors in time sequence. The second emission spectrum has the same characteristics as the first emission spectrum while the third emission spectrum has the same characteristics as the second emission spectrum.

The present specification is directed towards endoscopes, such as colonoscopes, that provide a broader field of view and allow extended access of surgical tools and also enable efficient packing of all necessary elements in the tip section, while maintaining their functionality. Also described are methods and systems for capturing and displaying still and video images using an endoscope corresponding to a left-side looking, a front-looking and a right-side looking viewing element of an endoscopic tip generated in a native aspect ratio.

A system for virtual reality/mixed reality viewing of a surgical procedure includes an endoscope having an elongated flexible or rigid main body with a proximal end and a distal end. A spherical element is coupled to the distal end. A plurality of wide field-of-view cameras or optical collections lenses are aligned about the spherical element to provide 360 degree omnidirectional stereoscopic visualization. A fiber optic illumination strip is positioned around the periphery of the spherical element adjacent each camera. A central processing unit is in communication with the plurality of cameras/lenses configured to receive real-time video from each of the plurality of cameras or lenses. A partial field-of-view virtual reality headset or a mixed reality headset is electronically coupled to the central processing unit. The headset displays real-time video from a select portion of the plurality of cameras or lenses, which provides 360 degree omnidirectional visualization based upon a position of the headset.

A system comprises a dental tray comprising an array of fixed focus cameras, wherein each fixed focus camera of the first array of fixed focus cameras has a fixed position and orientation relative to one or more other fixed focus camera of the array of fixed focus cameras. The system further comprises a processing device to receive a plurality of images generated by the array of fixed focus cameras, stitch the plurality of images together based on calibration data specifying predetermined image stitching parameters for combining the plurality of images, wherein the predetermined image stitching parameters are based on predetermined fixed relative positions and orientations of fixed focus cameras from the array of fixed focus cameras, and generate a three-dimensional model of a plurality of teeth based on the stitched plurality of images.

The present specification is directed towards endoscopes, such as colonoscopes, that provide a broader field of view and allow extended access of surgical tools and also enable efficient packing of all necessary elements in the tip section, while maintaining their functionality. Also described are methods and systems for capturing and displaying still and video images using an endoscope corresponding to a left-side looking, a front-looking and a right-side looking viewing element of an endoscopic tip generated in a native aspect ratio.