Abstract: An image processing device according to the present invention includes: a color space conversion unit that calculates brightness signals and color difference signals from RGB signals of two images of a single subject acquired under different image acquisition conditions; a color difference determination unit that determines whether or not the absolute value of the difference between the color difference signals of the two images calculated by the color space conversion unit is smaller than a predetermined threshold value; and a color averaging unit that, if the color difference determination unit determines that the absolute value of the difference between the color difference signals of the two images is smaller than the threshold value, averages the color difference signals of the two images and calculates average color difference signals.
Abstract: Provided is a microscope system including: a stage on which a sample is placed and that is movable in a direction orthogonal to an observation optical axis; a detecting unit that detects a position of the stage; an imaging unit that acquires an image of the sample on the stage; an image generating unit that generates an overlapped image by overlapping the acquired image with the position of the stage; a searching unit that searches for a position of the acquired image in the generated overlapped image; and a control unit that performs control including causing the image generating unit to stop the overlapping process and causing the searching unit to execute the position search when detection by the detecting unit fails, and causing the image generating unit to resume the overlapping process starting from a search position of the searching unit when the search is successful.
Abstract: A lens holding frame includes: a frame portion, a plate-shaped portion, holding portions, and auxiliary holding portions. The frame portion has a tubular shape extending along a reference axis. The plate-shaped portion overhangs inward from an inner circumferential surface of the frame portion. The holding portions protrude at sites of at least three places, which are away from each other in a circumferential direction around the reference axis on a surface of the plate-shaped portion, in a direction along the reference axis and are located on an abutting plane. The auxiliary holding portions protrude from a surface of the plate-shaped portion up to heights at which the auxiliary holding portions do not reach the abutting plane in the same direction as the holding portions.
Abstract: Provided is a surgical manipulator system including: a manipulator provided with a treatment tool having at least one joint and a drive portion that is attached to the treatment tool to drive the treatment tool; a manipulation input portion with which manipulation for causing, by driving the drive portion, the treatment tool to perform a desired operation is input; and a control portion that controls the drive portion on the basis of the manipulation that has been input via the manipulation input portion, wherein the treatment tool is provided with an identification-information retaining portion that retains identification information of the treatment tool, the manipulation input portion is provided with a manipulation-side reading portion that performs short-distance communication with the identification-information retaining portion, thus reading the identification information of the treatment tool, and the control portion controls the drive portion based on the read identification information of the treatm
August 23, 2016
Date of Patent:
April 16, 2019
Ryohei Ogawa, Masaru Yanagihara, Kosuke Kishi
Abstract: An inserting instrument includes a first flexible tube section having a flexibility lower than a spiral tube, a second flexible tube section having a flexibility lower than the spiral tube and equal to or higher than the first flexible tube section in a state where the second flexible tube section is not covered with the spiral tube. The flexibility of the second flexible tube section is lower than that of the first flexible tube section when the second flexible tube section is covered with the spiral tube. The inserting instrument includes a third flexible tube section provided on the proximal direction side with respect to the second flexible tube section and having a flexibility lower than the first flexible tube section.
Abstract: An arthroscopic surgery method for ankle impingement of the embodiment removes a posterior process of talus from the portal formed in the position specified beforehand by vibrating ultrasonically of an ultrasonic treatment tool which inserted and inserted the ultrasonic treatment tool to the posterior process of talus and a tendon sheath of flexor hallucis longus muscle tendon, and deletes the tendon sheath of flexor hallucis longus muscle tendon by the ultrasonic treatment tool used for deleting the posterior process of talus.
Abstract: An ocular portion coupling apparatus includes: a stepped pipe on which lock balls which are pressed against an eyepiece, are slidably arranged; and a rotation ring placed turnably on a ring placing surface, the rotation ring including a cam surface, wherein the stepped pipe includes convex pieces protruding outward from an outer circumferential surface of the large diameter portion, the convex pieces including one planes, the one planes and the ring placing surface sandwiching the rotation ring, and the rotation ring includes: axis direction grooves through which the convex pieces can pass; slide planes on which the one planes are slidably arranged; and restriction portions configured to prevent the convex pieces from dropping out through the axis direction grooves.
Abstract: Provided is an image-acquisition apparatus including: a scanning portion that scans illumination light emitted from a light source; an optical system that focuses the scanned illumination light on a sample, while collecting signal light beams generated at the individual scanning positions on the sample; a detector that detects the collected signal light beams and that generates detection signals thereof; a signal controller that is configured to generate periodic signals that are repeated at a predetermined period; a light controller that is configured to temporally control a position or an intensity of the illumination light in accordance with the generated periodic signals; and a computer that is configured to process, in accordance with the generated periodic signals, the detection signals generated, wherein the computer is provided with a frequency shifter for shifting frequencies of the detection signals, and an integrator that integrates the shifted detection signals at an integration time.
Abstract: An endoscope or treatment instrument including: an insertion portion configured to be inserted into a subject; an electrodeposition portion configured to electrodeposit a lubricant applied to an outer surface, the outer surface including: a conductive portion provided on the insertion portion and made of a conductive material; and an insulating portion covering an outer surface of the conductive portion, exposed to a surface of the insertion portion, and made of an electrically insulating material; a connection portion connected to the conductive portion of the electrodeposition portion to take an electric charge; and a static electricity generation apparatus connected to the connection portion and configured to electrodeposit the conductive portion of the electrodeposition portion in a state that the insulating portion electrically insulates the conductive portion and an outside of the endoscope or treatment instrument.
Abstract: An endoscope system includes: a first processor configured to process a first imaging signal acquired by a first endoscope; a second processor communicably connected to the first processor and configured to process second imaging signal acquired by a second endoscope; a mode switch configured to switch a processing mode of image processing; an image processor configured to execute first image processing on the first imaging signal when the mode switch switches the processing mode to a first processing mode and to execute second image processing on an signal input from the second processor when the mode switch switches the processing mode to a second processing mode; and a video-signal output unit configured to generate a video signal for display based on an output signal from the image processor and output the video signal to an external device.
Abstract: A joining method of joining two pieces of subjects to be joined together, the subjects being a first member and a second member that has a joint insertion portion in which the first member is inserted, the method including: heating the second member that is set in an expansion restricting member and in which the first member is inserted to the joint insertion portion to first temperature to cause the second member to have thermal expansion and thereby causing the joint insertion portion to have plastic deformation in a direction in which a diameter shrinks with mechanically restricting thermal expansion of the second member by an inner surface of the expansion restricting member; and cooling the second member after the heating to join the first member and the second member together.
Abstract: A wireless endoscope system includes two wireless endoscopes and a processor. Each wireless endoscope includes a memory configured to store setting information specifying operation conditions. The processor is capable of performing radio communication with each wireless endoscope. The processor includes a memory configured to store the setting information acquired by radio communication, and a controlling portion. The controlling portion stores the setting information in the memory and transmits the setting information to one of the wireless endoscopes by near field radio communication to store the setting information in a memory of the one of the wireless endoscope.
Abstract: An endoscope treatment tool includes: a tubular sheath part; an operation wire; an arm member; a holding tube; and a biasing member. The sheath part includes an elongated body part, and a tubular member. In a state where the holding tube and the tubular member are in contact with each other, the holding tube and the tubular member are connected to each other so as not to be rotated relative to each other about an axis and to be movable relative to each other in a direction in which a central axis of the sheath part extends. The arm member and the holding tube have a rotation restricting structure that prevents the arm member from rotating about an axis of the holding tube in a state where the arm member is in contact with the holding tube against the biasing force of the biasing member.
Abstract: An insertion apparatus includes: an insertion portion which is inserted into a body cavity of a subject and detachably equipped with a spiral tube rotatable around a longitudinal axis, the insertion portion having predetermined flexibility; and a driving source configured to cause the spiral tube to rotate; and the spiral tube is configured with a structure set not to bend at an arbitrary bending angle or more, the arbitrary bending angle being an angle at which rotation of the spiral tube is not stopped by driving force of the driving source even if the spiral tube receives external force to try to maintain a bending shape from a touched body cavity wall.
Abstract: An endoscopic system includes a left optical system having a first focal position, a right optical system having a second focal position that is different from the first focal position. An image capturing device generates a first image and a second image respectively from images of a subject that are obtained by the left optical system and the right optical system. A display device displays the first image or the second image. A proper image determiner determines the magnitude relationship between the position of the subject in a predetermined area displayed on the display device and at least one threshold value Th is established between the first focal position and the second focal position. A video signal processor switches to the first image or the second image depending on a determined result from the proper image determiner and displays the image on the display device.
Abstract: Provided is an optical fiber scanner including: an optical fiber that guides light from a side of a proximal-end portion to a side of a distal-end portion along a longitudinal axis, the optical fiber emitting the light from the distal-end portion; a piezoelectric element that is secured to an outer circumferential surface of the optical fiber, the piezoelectric element, as a result of an alternating voltage being applied thereto, generating stretching vibrations in a direction along the longitudinal axis; and a pressing portion that, of an outer surface of the piezoelectric element positioned on the radially outer side of the optical fiber, presses down, radially inward, a portion corresponding to an antinode of the stretching vibrations in a direction along the longitudinal axis of the piezoelectric element.
Abstract: A body phantom according to an embodiment includes a layered resin structure formed by combining a first material having a first refractive index and a second material having a second refractive index based on three-dimensional data that indicates an optical characteristic of a living body, wherein a mixing ratio of the second material to the first material to form the layered resin structure is a value corresponding to the optical characteristic.
Abstract: In a treatment instrument, a shaft is rotatable around a predetermined rotation axis relative to the housing, and an end effector is bendably or curvably attached to the shaft. In the treatment instrument, an interlocking member is provided independently of the shaft, and a receiver is provided in such a manner that rotation of the receiver relative to the housing is restricted or that rotation of the receiver relative to the shaft is restricted. The interlocking member moves in conjunction with bending or curving movement of the end effector so that the receiver engages with the interlocking member, thereby preventing rotation of the shaft around the predetermined rotation axis.
Abstract: An objective optical system for endoscope includes, a first lens group having a positive refractive power, a second lens group having a negative refractive power, and a third lens group having a positive refractive power. At a time of focusing, the first lens group and the third lens group are fixed, and the second lens group moves. The third lens group consists of a front group having a positive refractive power and a rear group having a positive refractive power. The front group includes one cemented lens and the rear group includes one single lens, and the following conditional expressions (1-1), (1-2), (4-1), and (4-2) are satisfied: 1?fG3f/fG3r?5??(1-1) 0.1?dG3fr/dG3r?1??(1-2) ?8?fc/rc??2??(4-1) ?7?fG2/fG3??2??(4-2).