Abstract: A bending operation mechanism of the endoscope is an operating section to operate a bending section, and a boot section to cover the main body of the operating section in a watertight manner by causing a tiltable operating lever provided at the frame section to pass through the boot section, includes a watertight fixing portion on its periphery. The endoscope includes a first fixing member engaged with the locking section of the frame section and locked unrotatably in the watertight fixing portion of the boot section to press the watertight fixing portion from an outer periphery side such that the watertight fixing portion is made watertight, and a second fixing member screwed with the frame section to fix the first fixing member on the frame section.

Abstract: An endoscope bending operation mechanism includes: an operation lever with one end being rotatably held; a frame configured to rotate with the operation lever; a fixing member rotatably supporting the frame; a rotation shaft coupled with an end portion of one of the frame and the fixing member; a bearing portion provided on the other of the frame and the fixing member and having a hole rotatably holding the rotation shaft; and a position defining portion configured to abut a part of the other of the frame and the fixing member to define a position of the rotation shaft. The position of the rotation shaft is adjustable, and by adjusting the position of the rotation shaft, a clearance between the bearing portion and the position defining portion in a direction along a central axis is adjusted.

Abstract: A method and a program capable of controlling an error rate of device-specific information are provided.

Abstract: A bending control mechanism for an endoscope includes a bending control lever controlling a bending portion disposed in an insertion portion of the endoscope. The bending control lever is turnably held on a first proximal end side thereof and is configured to enable the bending portion to bend by tilting the bending control lever on a first distal end side. A first annular surface is formed on the bending control lever. A second annular surface is formed on the bending control lever adjacent to the first annular surface. A third annular surface is formed on the bending control lever adjacent to the second annular surface. An elastic cover has a first attached portion being attached with the first annular surface, a second attached portion being attached with the second annular surface, a third attached portion being attached with the third annular surface, and a cover portion.

Abstract: A bending control mechanism for a medical instrument comprises a base portion having an opening. A bending control lever having a shaft member and a finger rest that are attached to one another. The shaft member includes respective first and second ends. The finger rest is disposed on the second end of the shaft member and having an outer diameter greater than the shaft member so as to enable the bending control lever tilting the shaft member from a neutral state to a predetermined angle by operation of the finger rest. An elastic cover having a peripheral edge portion on the base portion. An outer peripheral wall portion rising from the peripheral edge portion to a top portion formed at a first height where the finger rest does not come into contact with the elastic cover when the shaft member has been tilted to the predetermined angle.

Abstract: A method and a program capable of controlling an error rate of device-specific information are provided.

Abstract: A bending operation mechanism of the endoscope is an operating section to operate a bending section, and a boot section to cover the main body of the operating section in a watertight manner by causing a tiltable operating lever provided at the frame section to pass through the boot section, includes a watertight fixing portion on its periphery. The endoscope includes a first fixing member engaged with the locking section of the frame section and locked unrotatably in the watertight fixing portion of the boot section to press the watertight fixing portion from an outer periphery side such that the watertight fixing portion is made watertight, and a second fixing member screwed with the frame section to fix the first fixing member on the frame section.

Abstract: A stereoscopic endoscope system includes: first and second image pickup sections including first and second image pickup devices, respectively, arranged on an endoscope distal end portion and configured to acquire a common subject; a reference member integrally provided on the endoscope distal end portion and serving as a reference in adjusting the first and second image pickup sections such that images are picked up in first and second image pickup ranges that can be picked up by the first and second image pickup devices, respectively; and an adjustment section configured to adjust the image picked up by at least one of the image pickup sections to generate substantially horizontally symmetrical images when the first image and the second image obtained by picking up the images of the reference member by the first and second image pickup devices, respectively, are displayed as left and right images on a display apparatus.

Abstract: A stereoscopic endoscope system includes: first and second image pickup sections including first and second image pickup devices, respectively, arranged on an endoscope distal end portion and configured to acquire a common subject; a reference member integrally provided on the endoscope distal end portion and serving as a reference in adjusting the first and second image pickup sections such that images are picked up in first and second image pickup ranges that can be picked up by the first and second image pickup devices, respectively; and an adjustment section configured to adjust the image picked up by at least one of the image pickup sections to generate substantially horizontally symmetrical images when the first image and the second image obtained by picking up the images of the reference member by the first and second image pickup devices, respectively, are displayed as left and right images on a display apparatus.

Abstract: Provided is a surgical device that can give an accurate feeling of depth even when the surgical device is inserted in a horizontal direction on left and right images. Therefore, a plurality of indicators are provided in a shaft section and an interval between the respective indicators adjacent to each other is set to an interval for always setting an interval between the respective indicators on the left and right respective images to be larger than a shift amount in a left-right direction of the corresponding indicators between the left and right images when an image of the shaft section is picked up in a state in which the shaft section is orthogonal to optical axes of left and right image pickup optical systems within a predetermined error range.

Abstract: A distal end barrel that holds a light guide bundle and an electronic image pickup unit inside a distal end portion is formed in such a manner that the distal end barrel is divided in a first distal end barrel arranged on the distal end side of the distal end portion and a second distal end barrel supported via the first distal end barrel so as not to be exposed at an outer surface of the distal end portion, the second distal end barrel holding the light guide bundle and the electronic image pickup unit, and the second distal end barrel includes a member having a thermal conductivity higher than the thermal conductivity of the first distal end barrel, thereby protecting the image pickup device from thermal damage without an increase in temperature of the outer surface of the distal end portion.

Abstract: A 3D endoscope includes an insertion portion, a left imaging unit which comprises a left imaging optical system and a left imaging device, a right imaging unit which comprises a right imaging optical system and a right imaging device, a receiving portion which receives the left imaging unit and a receiving portion which receives the right imaging unit. The 3D endoscope includes a body provided at a side of a distal end of the insertion portion, the body supporting the receiving portions at an angle to a longitudinal direction so that the inclination of a left optical axis relative to the longitudinal direction, the inclination of a right optical axis relative to the longitudinal direction, the angle of rotation of the left imaging unit around the left optical axis, and the angle of rotation of the right imaging unit around the right optical axis are adjustable.

Abstract: A 3D endoscope includes an insertion portion, a left imaging unit which comprises a left imaging optical system and a left imaging device, a right imaging unit which comprises a right imaging optical system and a right imaging device, a receiving portion which receives the left imaging unit and a receiving portion which receives the right imaging unit. The 3D endoscope includes a body provided at a side of a distal end of the insertion portion, the body supporting the receiving portions at an angle to a longitudinal direction so that the inclination of a left optical axis relative to the longitudinal direction, the inclination of a right optical axis relative to the longitudinal direction, the angle of rotation of the left imaging unit around the left optical axis, and the angle of rotation of the right imaging unit around the right optical axis are adjustable.

Abstract: An engine crankshaft (1) made by forging, that has larger counter weights (8) without increasing a manufacturing cost. Engaging two dies with each other performs the forging. Each counter weight (8) has a plurality of inclinations (&thgr;1, &thgr;2) to facilitate removal of the dies from the crankshaft after the forging process is complete. The inclinations are reduced as they are apart from a die mating surface (P). The maximum thickness (T) of each counter weight (8) is not enlarged so that interference between the counter weights and neighboring parts is avoided. No machining is required after the forging process.

Abstract: A toner image fixing device includes a heat roller, and a backup roller engaged with the heat roller to form a nip therebetween. A paper carrying a toner image is passed through the nip whereby the toner image is thermally fused and fixed on the paper. The heat roller, which is stained by a part of the fused toner during the fixing process, should be cleaned before a toner image is fixed on a successive paper without staining. To this end, a cleaning roller made of a felt material is pressed against the heat roller so as to be rotated together with the heat roller by a frictional force acting therebetween. The cleaning roller must be periodically replaced. The fixing device is constituted such that the replacement of the cleaning roller can be easily and quickly carried out.