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 flexibal circuit boards.

An endoscope includes: an insertion portion; a first observation portion configured to observe a first area including a front of the insertion portion; a second observation portion configured to observe a second area including a side of the insertion portion and be adjacent to the first area; a first illumination portion configured to irradiate the second area with first illumination light; and a second illumination portion configured to irradiate the second area with second illumination light, and the second illumination portion performs irradiation with the second illumination light of a light quantity equal to a light quantity for which the first illumination light in a range observed in the second observation portion and illumination light from an illumination portion configured to irradiate the first area with the illumination light are put together.

Devices and methods for treating rhinitis are provided. An integrated therapy and imaging device is provided for single handheld use. The device may have a hollow elongated cannula, a therapeutic element coupled to a distal portion of the cannula, an imaging assembly coupled to the cannula to provide visualization of the therapeutic element, and an articulating region operably coupled to the imaging assembly to articulate the imaging assembly. The imaging assembly may be articulated so as to translate vertically, laterally, axially, and/or rotationally.

An in-vivo imaging device for capturing one or more narrow band images of the gastrointestinal tract, or other body lumens or cavities of a patient, using one or more narrow band illumination sources and an imager having an array of light sensitive elements.

System and methods for optical tissue interrogation are provided. In some embodiments, a catheter for visualizing ablated tissue is provided, and can include a catheter body, and a distal tip positioned at a distal end of the catheter body. The distal tip can have one or more openings for exchange of light energy between the distal tip of the catheter and tissue.

An endoscope system includes an insertion portion, an objective optical system provided on the insertion portion and configured to form an object image, an image pickup unit configured to pick up the object image, a bending portion configured to cause a distal end portion of the insertion portion to bend, an image processing portion configured to perform cutout processing on the image picked up by the image pickup unit, such that an area of field of view expands in a bending direction of the distal end of the insertion portion by the bending portion, and an exposure control portion configured to perform exposure control based on a brightness of the cutout image.

An endoscope illumination device includes: an illumination optical system including an entrance surface disposed along a circumferential direction centered on a predetermined axis and provided at one-end side in the direction of the predetermined axis, an emission surface positioned at an outermost side in a radial direction with respect to the predetermined axis and radially emitting illumination light entering from the entrance surface, a diffusion surface disposed at an intermediate position of an optical path of the illumination light between the entrance surface and the emission surface and transmitting and diffusing the illumination light; and a light emitting portion disposed closer to the one-end side than the entrance surface is and emitting, toward the entrance surface, the illumination light substantially in the direction of the axis.

An illuminating lens for a medical headlamp, endoscope or exoscope, to generate an illuminating light bundle with variable light distribution includes a liquid lens with variable focal length to modify a focusing of the illuminating light bundle. The invention also relates to an observation device with an illuminating lens of this type as well as a method to generate an illuminating light bundle with variable light distribution.

The present specification describes a circuit board design that uses circuit boards for illuminator sets associated with the various optical assemblies. In one configuration, front and side illuminators are assembled on front and side illuminator circuit boards. Leaf connectors associated with each illuminator are provided to interface with a common base board.

An endoscope includes: a first image acquisition portion configured to acquire a first object image from a first direction; a second image acquisition portion configured to acquire a second object image from a second direction different from the first direction; first illumination light emission portions provided on a straight line with the first image acquisition portion, the first image acquisition portion being interposed between the first illumination light emission portions, and arranged along a line orthogonal to an optical axis of the first image acquisition portion; and second illumination light emission portions lined up and arranged on a plane where the second image acquisition portion is arranged at the insertion portion, and a lining direction of the first illumination light emission portions and a lining direction of the second illumination light emission portions are arranged at positions to be a twisted relation.