Abstract: An image processing device includes a processor. The processor is configured to: recognize blood vessel running information; recognize a first bleeding position from a surgery image; identify a second bleeding position in the blood vessel running information corresponding to the first bleeding position in the surgery image; and identify a bleeding stopping point corresponding to the second bleeding position as a bleeding stopping recommended point corresponding to the first bleeding position. The processor: acquires information about the bleeding stopping recommended point corresponding to each of one or more blood vessel areas in the blood vessel running information; identifies the blood vessel area among the one or more blood vessel areas, to which the second bleeding position belongs; and performs processing in which the bleeding stopping recommended point corresponding to the blood vessel area thus identified is superimposed on the surgery image and displayed on a display.

Abstract: A bending operation mechanism of an endoscope including: a first pulley configured to pull a first wire by being rotated in a first rotation direction; a second pulley, which is coaxial with the first pulley, configured to pull a second wire by being rotated in a second rotation direction opposite to the first rotation direction; and a rotation shaft member including a first protrusion that engages only with the first engagement portion of the first pulley when the rotation shaft member is rotated in the first rotation direction from a neutral position when a bending portion is not bent and a second protrusion that engages only with the second engagement portion of the second pulley when the rotation shaft member is rotated in the second rotation direction from the neutral position.

Abstract: A stereoscopic vision endoscope objective optical system includes, in order from an object side, a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a rear-side lens group having a positive refractive power. The rear-side lens group includes a first rear group and a second rear group. The first lens group and the second lens group are disposed so that an optical axis of the second lens group coincides with an optical axis of the first lens group. The optical axis of the first lens group is located between an optical axis of the first rear group and an optical axis of the second rear group. Each of the first rear group and the second rear group includes a first sub group, an aperture stop, and a second sub group, and the first sub group includes a negative lens.

Abstract: A vent control valve for an endoscope includes a shaft body including a pin fixing portion, and a vent hole including a long hole with an opening provided in one end surface, and a long hole communication hole configured to cause an outside and an inside of the long hole to communicate with each other, a tubular member including a shaft body hole configured to house the shaft body, and a cam groove in which the cam pin is disposed, a rotational member including a tubular member hole where the tubular member is disposed, a cam pin groove where the cam pin is disposed, and a plurality of engaging holes, and a cylindrical housing member including an attaching portion fixedly provided in a casing through-hole, and a housing hole communicating with the internal space.

Abstract: A driving force transmission mechanism for an endoscope includes an insertion portion, an operation portion, an electric motor, an output member, a rotation transmission member, an inside plane, a first plane, a second plane and a third plane configured to come into contact with a proximal end of the output member when at least part of the second plane comes into contact with the inside plane to thereby restrict the rotation transmission member from moving toward the distal end side in the axial direction with respect to the output member.

Abstract: Provided is an objective optical system including: a first spherical lens and a second spherical lens that are arrayed in this order from an object; and at least one of a first optical medium and a second optical medium, wherein the first optical medium is a solid or liquid disposed at an object side of the first spherical lens and is in close contact with a surface on the object side of the first spherical lens, over an entire optical path; and the second optical medium is a solid or liquid disposed at an opposite side of the second spherical lens from the object and is in close contact with a surface on the opposite side of the second spherical lens from the object, over the entire optical path.

Abstract: An endoscope system includes an insertion section, a first active bending section, a second active bending section, a position-information acquiring section, a first control section, a second control section, and a third control section. The first control section controls, based on a detection result of the position-information acquiring section, a first driving section of the first active bending section such that a first end portion of a first tubular section of the first active bending section moves away from a center point. The first control section controls a second driving section of the second active bending section such that a second end portion of a second tubular section of the second active bending section approaches the center point. The third control section controls the first driving section such that force in a direction of bending the first tubular section in a first bending operation acts on the first end portion.

Abstract: A full-thickness resection method for a gastrointestinal tract includes forming a pair of first markings in surrounding tissue on both sides of a lesion to sandwich the lesion therebetween; performing a full-thickness resection to a portion including the lesion; identifying a pair of suture locations in the vicinity of the pair of first markings; and suturing the pair of first suture locations.

Abstract: An image pickup unit includes: an image pickup substrate including a first principal surface and a second principal surface, a light receiving circuit being formed on the first principal surface and a through wiring being placed on an inner surface of a via hole including an opening in the second principal surface; a solder resist film placed around the via hole on the second principal surface and in the via hole in a range from a bottom face to a level not reaching the second principal surface; and a bonding terminal which is made of solder, covers a surface of the solder resist film placed in the via hole, and is bonded to the through wiring on an outer edge of the opening in the via hole, the through wiring being not covered with the solder resist film.

Abstract: An endoscope includes an insertion portion, an operation portion, a power transmission unit, a power relay unit, a power generation unit configured to apply power to the power relay unit in a second power transmission shaft direction which is non-parallel to a first power transmission shaft direction, an elastic member configured to perform either one of urging the power relay unit against the power generation unit or urging the power generation unit against the power relay unit, and a cable configured to extend from the operation portion in the second power transmission shaft direction which is a direction different from a longitudinal direction, wherein the power generation device is attached such that the power generation device is disposed to extend in an extending direction of the cable after being mounted.

Abstract: An endoscope includes: an insertion portion configured to be inserted into a subject; and a channel fixing portion disposed on an outer periphery of the insertion portion and configured such that a part or all of a long channel tube is fixed in a state of being embedded in a distal end portion of the insertion portion.

Abstract: An insertion apparatus includes: a base member, a rotary shaft, and a driven member including a hole. A plurality of concave portions are formed on the rotary shaft, and a pair of side wall surfaces which form each of the plurality of concave portions are disposed so as to intersect with each other at a right angle or at an obtuse angle.

Abstract: A treatment system that includes a pair of jaws and a heater resistor provided on one jaw of the pair of jaws that generates heat by energization. The system also includes a heating device that controls a current to set a resistance value of the heater resistor to a target resistance value. The heating device includes a double bridge circuit allowing current to flow between the heating device and the heater resister when detecting, by the detection resister, a difference between the resistance value of the heater resistor and the predetermined target resistance value. The heating device including a power supply voltage generator that generates a power supply voltage to be applied to the heater resistor and the double bridge circuit, a controller that modulates the generated power supply voltage, and a heater resistance detector that detects an AC component from the current flowing through the detection resistor.

Abstract: An image pickup module includes: a lens unit including a first principal surface and a second principal surface; an image pickup unit including a third principal surface and a fourth principal surface on which an external electrode is disposed; a wiring board including a hole and a bonding electrode disposed on a bottom surface of the hole; a solder that bonds the bonding electrode and the external electrode; a rigid member that defines a spacing between the fourth principal surface and the bottom surface; and a second resin disposed between the fourth principal surface and the bottom surface.

Abstract: An ultrasound endoscope comprises an operation portion, an insertion portion coupled to the operation portion, a distal end portion coupled to the insertion portion and including a projecting portion and a distal end body portion, a balloon channel disposed inside the insertion portion and extending from the operation portion to the rigid distal end portion, and a balloon mounting portion between the projecting portion and the distal end body portion. The balloon channel includes a bending portion in the rigid distal end portion and a balloon outlet that is formed at the bending portion and connected to the balloon mounting portion. A cross section of the bending portion includes a first bending angle and a second bending angle, and the first bending angle is smaller than the second bending angle.

Abstract: An image pickup apparatus for endoscope includes an image sensor, a ferrule which is a rectangular parallelepiped having a front surface, a rear surface, and four side surfaces and includes insertion holes and trenches parallel to the insertion holes on respective two side surfaces orthogonal to each other among the four side surfaces, an optical element in which a light emitting region is disposed in a position opposed to the insertion holes, and optical fibers inserted into the insertion holes.

Abstract: An image pickup apparatus includes a lens unit and an image pickup unit. The lens unit includes a plurality of optical devices including a first optical device that includes: a first glass substrate having a first principal surface and a second principal surface and a groove leading to the second principal surface from the first principal surface in at least one of four corners on an outer edge; first resin disposed in the groove; and a resin lens disposed on the second principal surface. The image pickup unit including an image pickup device is disposed on an optical device not including the first resin, of the plurality of optical devices.

Abstract: A lens unit includes a first optical element including a first principal surface that is an incident surface; and including a first glass substrate and a first resin, the first glass substrate including a frame-shaped cutout at an outer edge of the first principal surface, the first resin being disposed only in the cutout.

Abstract: A lens unit includes: a first optical device including a first glass substrate including a first principal surface and a second principal surface, and a resin lens disposed on the second principal surface; a second optical device including a second glass substrate including a third principal surface and a fourth principal surface, in which the third principal surface is disposed facing the second principal surface, and a substantially rectangular aperture layer made of metal that is disposed on the third principal surface and that has four corner regions cut out; and an adhesive layer that adhesively bonds the first optical device and the second optical device, in which four corner regions do not sandwich the aperture layer between the first optical device and the second optical device.

Abstract: A method of manufacturing a lens unit includes: producing a stacked wafer including a plurality of optical wafers that include at least one optical wafer in which a light shielding layer is disposed and having a first principal surface and a second principal surface; forming grooves in a grid pattern on the first principal surface or the second principal surface of the stacked wafer using a dicing blade, in which the grooves have a depth at which the light shielding layer is cut; and dividing the stacked wafer into a plurality of lens units by performing stealth dicing using a filamentation laser along the grooves.