Abstract: An imaging device includes a camera unit and a control unit. A first power source voltage is transferred from the control unit to the camera unit by a power source line and is input to the camera unit as a second power source voltage. The control unit measures a value of a voltage generated at a point connecting the power source line and the control unit. The voltage at the point is generated based on both the second power source voltage held in a capacitor of the camera unit and a resistance component of the power source line. The control unit calculates a resistance value of the power source line based on the measured value. The control unit adjusts a value of the first power source voltage based on the resistance value.

Abstract: An imaging device includes a pixel and a voltage generation circuit. The pixel is configured to operate based on a power source voltage and a reference voltage that is lower than the power source voltage and is higher than or equal to a ground voltage. The voltage generation circuit is configured to generate a predetermined positive voltage that is higher than the reference voltage and is lower than the power source voltage. A transfer transistor of the pixel is formed on a well. The predetermined positive voltage is applied to the well. The transfer transistor is configured to operate based on the power source voltage and the reference voltage.

Abstract: A clip device for gripping biological tissue of a patient includes a clip having a first arm and second arm closeable by operation of a wire that is reciprocally moveable in a longitudinal channel of a sheath; and a bendable member at a distal end region of the sheath. The bendable member can be an integral portion of the sheath or a separate structure. The bendable member is configured to allow a distal end of a clip to rotate or swing toward a proximal end region of the sheath of the device, which orients the clip relative to the sheath to facilitate grasping of tissue even when the approach of the clip is tangential to the tissue, e.g., at an angle (?) less than 90. The bendable member can be configured to allow a distal end of a clip to rotate or swing toward a proximal end region of a sheath and form an angle of up to at least about 45 degrees, such up to about 60 degrees or up to about 90 degrees, or higher.

Abstract: A first power source voltage transferred from a control unit by a power source line is input to an imaging device as a second power source voltage. The imaging device generates a first voltage in a first period and generates a second voltage in a second period. The imaging device generates a reference voltage. The imaging device outputs a first signal indicating the first voltage and the reference voltage to a video signal line and outputs a second signal indicating the second voltage and the reference voltage to the video signal line. An amount of current consumption in the imaging device in the first period is less than an amount of current consumption in the imaging device in the second period.

Abstract: A bending tube of an insertion appliance includes a first region including a first plurality of slits, a second region provided proximally relative to the first region and including a second plurality of slits, and a guiding surface on an inner circumferential surface of the bending tube, the guiding surface extending in a circumferential direction, and including a channel configured to slidably house a wire. Each slit of the first plurality of slits is at different position in the circumferential direction, and at different positions in a longitudinal direction. Each slit of the second plurality of slits is provided at different position in the circumferential direction, and at different position in the longitudinal direction. The first plurality of slits is distributed over a first angle in the circumferential direction, and the second plurality of slits is distributed over a second angle smaller than the first angle in the circumferential direction.

Abstract: An imaging device includes a camera unit and a control unit. A first power source voltage is transferred from the camera unit to the control unit by a power source line and is input to the camera unit as a second power source voltage. The camera unit consumes the second power source voltage as a load current in a voltage-monitoring period. The control unit measures a value of the second power source voltage transferred from the camera unit by the video signal line in the voltage-monitoring period. The control unit adjusts a value of the first power source voltage in the video output period based on the measured value.

Abstract: An endoscope includes an insertion section extending along a longitudinal axis and including a distal end portion, the distal end portion includes a distal end structural member including a conduit integrally formed as a through hole with the distal end structural member, the conduit configured so that a fluid flows through the conduit, the conduit includes a nozzle and a supply conduit located proximally relative to the nozzle, wherein a cross-sectional area of the supply conduit is greater than a cross-sectional area of the nozzle.

Abstract: An endoscope includes an insertion portion, an operation portion, and a fitting mechanism coupling the insertion portion and the operation portion so as to be decouplable. The fitting mechanism includes a plate portion and a convex portion, and a fitted-shape portion and a hole. The convex portion is fitted to the fitted-shape portion. The hole exposes at least one of the plate portion or the convex portion to outside. The fitting mechanism is provided at a position around a center axis, corresponding to a bending wire.

Abstract: An endoscope includes an insertion portion including a bending portion, an operation portion including an operation lever, a grasping portion including an actuator, and a tube body, in a continuous manner. When the operation lever is tilted, the actuator pulls a wire, whereby the bending portion is bent in a vertical direction and a lateral direction. The actuator is arranged such that a center of gravity of a portion including the insertion portion, the operation portion, the grasping portion, and the tube body is within a range in which at least one of the fourth finger or the fifth finger of the hand grasping the grasping portion is positioned, in a longitudinal direction of the grasping portion.

Abstract: An endoscope processor includes a processor that can be connected to an endoscope including a moving mechanism of a focusing lens included in an objective optical system and an image pickup apparatus. The processor is configured to determine whether or not a transition has been made from a screening state to a proximity state based on positional information of the focusing lens and an image in a proximity determination mode when a variation in an image height in an effective image range with control of the moving mechanism is 1% or less, and when it is determined that a transition has been made to the proximity state, the processor is configured to end the proximity determination mode and control the moving mechanism in an autofocus mode.

Abstract: An endoscope includes an insertion portion including a distal end portion in which an image pickup unit is disposed, the insertion portion being configured to be inserted into an organ of a subject, an operation portion disposed at a proximal end of the insertion portion, and a sensor disposed in the operation portion, the sensor being configured to detect a pressure of a fluid in a flow passage passing through from the operation portion to a first opening of the distal end portion, the flow passage being configured to allow the fluid flowed into the operation portion to be flowed out from the first opening.

Abstract: A signal cable includes: a plurality of electric wires; a first insulating layer surrounding the plurality of electric wires; a shielding layer covering a circumference of the first insulating layer; a second insulating layer covering a circumference of the shielding layer; and a fixing portion fixing a distal end portion of the shielding layer, in which distal end portions of electric wires protrude more toward a distal end side than a distal end portion of the second insulating layer, the distal end portion of shielding layer is disposed nearer to the proximal end side than a distal end portion of the first insulating layer and the distal end portion of the second insulating layer, and the fixing portion fixes the distal end portion of the shielding layer in a space between the distal end portion of the first insulating layer and the distal end portion of the second insulating layer.

Abstract: An endoscope system includes: a light source configured to emit white light having wavelength distribution of white color; an optical element configured to block at least light emitted from the light source, the at least light having wavelength band corresponding to a light absorption band with a highest peak from among light absorption bands of a medicinal substance used in phototherapy; an imaging element configured to perform imaging based on a light component which has passed through the optical element; and an image processor configured to process imaging signal obtained as a result of imaging performed by the imaging element, and generate an image.

Abstract: A manipulator system includes: a manipulator; a driving device to which the manipulator is detachably connected and which electrically drives the manipulator; a control device; a first sensor provided in the driving device; and a second sensor provided in the manipulator or the driving device. The control device is configured to perform a first step of confirming that the driving device operates normally according to electric power on the basis of an output of the first sensor, and a second step of confirming that the manipulator is connected to the driving device on the basis of an output of the second sensor. The first step includes checking whether the first sensor is normal, and the second step includes checking whether the second sensor is normal on the basis of the output of the first sensor that has been confirmed to be normal and the output of the second sensor.

Abstract: An ischemia control device is connected to a control unit that receives inputs from sensors and other surgical devices that senses patient conditions. The control unit uses the data inputs, as well as direct inputs from the medical operators, to output opening and closing instructions to the ischemia control device. The actuator on the ischemia control device receives the opening and closing instructions and manipulates the ischemia control device. The ischemia control device can be automatically operated using the sensed information to intermittently and alternately achieve ischemia of the organs and reperfuse the organs and, thereby, protect the organs from being damaged by the ischemia.

Abstract: A suction system of an endoscope includes a branch conduit including a suction pipe sleeve branching from a main conduit; a suction path provided in the suction pipe sleeve and including a first opening communicating with the main conduit; a working channel including an insertion path communicating with the main conduit; and a liquid feed tube inserted through the main conduit and the working channel. A first minimum length A, a maximum length B, and a second minimum length C have a dimensional relation of C?B<(A?B)/2, the first minimum length A passing through a first center on a plane of the first opening, the maximum length B passing through a second center on a cross section orthogonal to a longitudinal direction of the liquid feed tube, the second minimum length C passing through a third center on a cross section orthogonal to a longitudinal direction of the insertion path.

Abstract: A clip device includes a clip, including a plurality of arms having sliding grooves; and an intermediate member inserted into the sliding grooves for connecting the plurality of arms; a pressing tube accommodating a proximal end portion of the clip; a connection member connecting with an operation wire at a proximal end side and including an engaging portion engaging with the intermediate member; and a locking mechanism for lock the plurality of arms when the clip is pulled toward the proximal end side by a predetermined distance by the connection member, wherein the clip includes a contact portion formed on a side surface of the arm to be in contact with the engaging portion from a direction orthogonal to an axial direction of the intermediate portion for preventing a deformation of the engaging portion when the intermediate portion slides along the sliding groove before the plurality of arms are locked.

Abstract: An endoscope connection mechanism includes a connection pipe sleeve including a hole having an axis, and a first optical shutter movable between a first state and a second state. The first optical shutter includes a first, a second and a third portions. The first portion includes a first end fixed to a base portion of the first optical shutter, and a second end provided distally relative to the first end. The second portion includes a third end connecting to the second end, and a fourth end provided distally relative to the third end. The third portion includes a fifth end connecting to the fourth end, and a sixth end provided distally relative to the fifth end. In the first state, the third portion is positioned to intersect the axis of the hole, and in the second state, the third portion is positioned not to intersect the axis of the hole.

Abstract: Provided is an endoluminal device system including: an elongated and flexible endoluminal device; a wire that is disposed in the endoluminal device; a first sensor that detects tension of the wire; a second sensor that detects displacement of the wire; a driving device capable of pulling the wire; and a processor. The processor is configured to: cause the driving device to execute a relaxing operation for relaxing the wire, acquire the tension and the displacement of the wire during the relaxing operation, which are detected by the first sensor and the second sensor, respectively, and adjust a control parameter of the endoluminal device based on a rate of change in the tension with respect to the displacement.