Abstract: A receiving unit includes: a receiving antenna configured to receive a wireless signal transmitted from a capsule endoscope introduced into a subject, the receiving antenna being attached to a body surface of the subject; a detector configured to detect a pressure between the receiving antenna and the subject; and a processor including hardware, the processor being configured to determine an attachment state of the receiving antenna to the body surface based on the pressure, and output a determination result of the attachment state.
Abstract: In a measurement device, a processor is configured to display one first image in a first region of a display. The processor is configured to hide the first image in the first region and display one second image included in a plurality of second images in the first region after a first point is set on the first image. The processor is configured to set the first point on the first image and set a second point on the second image. The processor is configured to generate a three-dimensional shape of a subject on the basis of a position and a posture of a camera when each image is generated. The processor is configured to measure a size of the subject on the basis of at least the first point, the second point, and the three-dimensional shape.
Abstract: A display control unit is configured to display a second image on a display. The second image is an image of a subject seen in a first direction from a first viewpoint. A reference figure calculation unit is configured to calculate a reference figure on the basis of three-dimensional coordinates of at least two points that have been set on the basis of at least one reference point. A viewpoint calculation unit is configured to calculate a second direction and a second viewpoint on the basis of the reference figure. An image generation unit is configured to generate a third image that is a three-dimensional image of the subject seen in the second direction from the second viewpoint. The display control unit is configured to display the third image on which information representing a position of the reference figure has been superimposed on the display.
Abstract: An endoscope system includes a mother endoscope, a baby endoscope and a fixing member. The mother endoscope includes a first insertion section, a first operation section, a treatment instrument insertion channel and an opening. The baby endoscope includes a second insertion section and a second operation section. The first operation section includes a projection portion. The second operation section includes a recess portion that is a recessed face formed such that at least part of the recessed face comes into face contact with a surface of the projection portion. The second operation section is fixed to the first operation section in a state where the recess portion is in contact with the surface of the projection portion.
Abstract: An electrically conductive irrigation fluid for use in bipolar resectoscopic surgery, wherein the irrigation fluid being brought into contact with the electrode of a resectoscope and tissue being coagulated and/or resected by means of the electrode surrounded by the irrigation fluid, wherein the irrigation fluid includes metal ions. Moreover, the method relates to a resectoscopy system including a resectoscope and an irrigation system that is connected to the resectoscope, the resectoscope having a handle and a tubular shaft, and the shaft including an electrode instrument that is arranged so as to be longitudinally displaceable and has in its distal end region an electrode to which high-frequency current can be applied, wherein the irrigation system includes an irrigation fluid, which can be conducted through the shaft of the resectoscope to the electrode.
Abstract: An electrically insulating insert for detachable connection to the distal end region of a resectoscope shaft, characterized in that the insulating insert has a hollow portion with an elongate cavity for the passage of pass-through instruments, and that the insulating insert has fastening means for detachable connection to the resectoscope shaft. An electrode instrument is connected to this insulating insert and to a resectoscope including the same.
Abstract: A connector apparatus of the present invention includes a receptacle into which a plug is inserted, a moving member configured to move in conjunction with insertion of the plug, and a sensor provided below the receptacle and configured to detect presence or absence of the plug in the receptacle, in which the moving member includes a first portion extending downward, a second portion, one end of which is connected to the first portion and another end of which is located above the one end, and a third portion, one end of which is connected to the second portion and configured to move in conjunction with the insertion of the plug to thereby switch between a first state in which the plug is disposed in a predetermined region and a second state in which the plug is not disposed in the predetermined region.
April 21, 2020
August 6, 2020
Ryusuke SUZUKI, Minoru SATO, So MATSUKA
Abstract: A resectoscope for endoscopic surgery with a tubular shaft and a handle, wherein the shaft includes a longitudinally displaceable electrode instrument and an illuminating device, with an electrode to which high-frequency current can be applied being arranged in the distal end region of the electrode instrument, characterized in that the illuminating device in the distal end region of the resectoscope can emit UV radiation in the wavelength range from 200 nm to 400 nm.
Abstract: A bending mechanism includes: an elongated support member; a swivel that is pivotably connected to a distal end of the support member; a first link that can transmit a driving force applied at the proximal end, to make the swivel pivot with respect to the support member; a second link that can transmit a driving force applied at the proximal end, to make the swivel pivot with respect to the support member; and a connector that is provided on at least one of the first and second links and that can switch the coupled state of one of the first and second links when a pivoting angle of the swivel exceeds a threshold such that the permissible stress of the one of the links has become less than the permissible stress of the other.
Abstract: An endoscopic system includes a sheath portion including an opening, a translucent balloon, an endoscope main body, and a display. The balloon includes a first index group having a plurality of balloon indices. Adjacent two of the plurality of balloon indices are different from each other. The balloon covers the opening and is configured to inflate and deflate. The endoscope main body is configured to be retracted into and projected from the opening. The endoscope main body is located inside the inflated balloon and is configured to observe an interior portion of a sinus. The display is configured to display an image obtained by the endoscope main body.
Abstract: An insertion assist system includes a guide member and a shift member. The guide member brings an outside bend of a peripheral surface of an insertion body into contact with a guide surface of the guide member. The shift member shifts a direction of the distal end of the insertion body. The shift member comes into contact with an inside bend of the peripheral surface of the insertion body when the insertion body is bent. The shift member bends the insertion body toward the guide surface about the guide surface as a fulcrum when the shift member comes into contact with the inside bend and bends the insertion body.
Abstract: A case body includes a distal end side case configuring a part of a case body exterior, a center portion case disposed in a position adjacent to the distal end side case and configuring a case body exterior in conjunction with the distal end side case, a first elastic seal member disposed to be exposed as a case body exterior in a boundary between the distal end side case and the center portion case provided adjacent to each other, and an abutting section configured to set a crushing amount of the first elastic seal member, the abutting section including an abutting surface provided in one of the distal end side case and the center portion case and coming into contact with a bottom surface of another exterior member.
Abstract: A deflection prism assembly for an endoscope having a lateral viewing direction, the deflection prism assembly including: a prism holder; and a deflection prism accommodated in the prism holder; wherein the deflection prism has a light outlet surface and an opposite light inlet surface arranged obliquely to the light outlet surface, the deflection prism further having a lateral surface extending between the light inlet surface and the light outlet surface; and the prism holder accommodates the deflection prism such that the prism holder surrounds less than all regions of the lateral surface of the deflection prism.
Abstract: An endoscope includes: an image pickup device configured to convert image pickup light into an image pickup signal and output the image pickup signal; a light emitting element configured to output an optical signal based on the image pickup signal; a bonded prism including: a first prism including a first reflecting surface configured to reflect the image pickup light and a lower surface that is a first emitting surface configured to emit the image pickup light to the image pickup device; and a second prism including a second reflecting surface configured to reflect the optical signal that is incident from an upper surface and outputted from the light emitting element, the second reflecting surface being bonded with the first reflecting surface; and an optical fiber configured to transmit the optical signal reflected by the second reflecting surface.
Abstract: An estimation device includes a processor configured to: detect an error of data obtained by receiving a wireless signal from a medical device; correct the detected error; determine whether or not there is a noise due to an external generation source at a time of acquiring the wireless signal from the medical device, based on detection information relevant to the detected error or correction information relevant to the corrected error; and estimate a cause of the noise, based on the detection information or the correction information. The detection information is at least one of the number of detections of the error, continuousness of the error, and periodicity of the error, and the correction information is at least one of the number of corrections of the error, continuousness of data in which the error is corrected, and periodicity of data in which the error is corrected.
Abstract: A medical manipulator system that includes a joint, a first sensor that detects an amount of rotational motion of the joint, an actuator that drives the joint via a wire, a second sensor that detects an amount of operation of the actuator based on a rotation angle of the actuator, an input device, and a controller. The controller generates a control signal based on: an operation mode in which the control signal is generated by a transfer function that receives an input target value of the rotation angle of the joint and the amount of operation of the actuator, and a calibration mode in which the transfer function is adjusted based on comparing to a predetermined threshold value the amount of rotational motion of the joint and the amount of operation of the actuator. The controller then transmits the generated control signal to the actuator to drive the joint.
Abstract: The present invention provides an erythrocyte-culture monitoring device including a light source that radiates monochromatic light onto a culture solution culturing erythrocytes accommodated in a culture container, a first photodetector that detects a light intensity of the monochromatic light transmitted through the culture solution, and a controller that evaluates an amount of hemoglobin in the culture solution based on a temporal change in the light intensity detected by the photodetector.
Abstract: An endoscope distal end portion includes: a channel that is tubular, the channel being where a surgical tool is to be inserted in; a light guide configured to guide illumination light emitted from a light source; an imager configured to capture an image of an observed region illuminated with the illumination light from the light guide; and a fixing member that is made of resin and that has a columnar outer shape, the fixing member being configured to seal around the channel, the light guide, and the imager, wherein the channel is in contact with the imager, and the light guide is in contact with at least one of the channel and the imager, and a contact surface of the channel in contact with the light guide or a contact surface of the imager in contact with the light guide has a groove or a projection formed thereon.
Abstract: A stereo camera calibration method includes: obtaining a stereo image generated by imaging a chart using a stereo camera, the chart at least including two markers arranged at a known interval; measuring the known interval, using the stereo image and a calibration parameter for the stereo camera; and correcting a parameter pertaining to an optical axis position so as to reduce a difference between the known interval and a result of the measurement. The correcting includes performing a process corresponding to moving the optical axis position in perpendicular and lateral directions on an imaging surface of the stereo camera. The correcting includes calculating a perpendicular correction amount of the optical axis position, and then calculating a lateral correction amount of the optical axis position.
Abstract: A macro lens includes an object-side lens unit having a positive refractive power, a first focusing lens unit having a negative refractive power, a second focusing lens unit having a positive refractive power, an aperture stop, an intermediate lens unit which includes a lens component having a positive refractive power, and a wobbling lens unit. The aperture stop and the intermediate lens unit are disposed between the first focusing lens unit and the second focusing lens unit, the aperture stop is adjacent to the lens component having a positive refractive power, and the following conditional expressions (1), (2), and (3) are satisfied: 2<LEE/|?fo1G|<15??(1) 2<LEE/|?fo2G|<15??(2) 0.5<|MG|<1.5??(3).
Abstract: According to one embodiment, a medical device includes: a sheath with a distal end and a proximal end; a housing provided at the proximal end of the sheath; an end effector provided at the distal end of the sheath, the end effector capable of flexing or curving with respect to the sheath; a flexural drive unit including a drive member configured to move relative to the sheath and thereby flex or curve the end effector with respect to the sheath; and a support member mounted inside the housing with a part of the flexural drive unit mounted inside the support member.
Abstract: An endoscope includes an insertion portion, a ball, a controller, a wire, one end of which is connected to a bending portion and the other end of which is connected to a rotating body, and a groove formed so as to wind up, around the rotating body along with rotation, an intermediate portion of the wire corresponding to a direction of the wire in which the rotating body rotates.
Abstract: A processing device includes: a processor including hardware, the processor being configured to acquire image data; determine, for each pixel of an image corresponding to the acquired image data, whether a pixel value of the pixel is equal to or less than a preset threshold as a dark level; accumulate, for a predetermined number of frames, the pixel value that has been determined to be equal to or less than the preset threshold and positional information regarding a position of the pixel whose pixel value has been determined to be equal to or less than the preset threshold, on the image sensor; calculate a statistical value of the accumulated pixel values for each pixel; determine, for each pixel, whether the statistical value falls outside a preset range; and correct a pixel value of the pixel whose statistical value has been determined to fall outside the preset range.
Abstract: A medical instrument includes a housing, a movable handle, and a spring. The movable handle is configured to move between a first position as an opened position and a second position as a closed position with respect to the housing. The spring is provided between the housing and the movable handle. The spring is configured to apply a biasing force to the housing or the movable handle. The spring is provided to alleviate an increase in the biasing force generated in the spring in response to the movable handle moving from the first position to the second position.
Abstract: In a tissue binding method, a ring-shaped part (15) of a snare wire (10b) is disposed at a position surrounding a binding target site, the tissue at the binding target site is pulled while the ring-shaped part (15) is pressed against the tissue around the binding target site at a plurality of pressing points that are located away from each other in the circumferential direction of the ring-shaped part (15), and, in a state in which the tissue at the binding target site is pulled, the diameter of the ring-shaped part (15) is reduced to bind the tissue, while adjusting the position in the pressing direction at one or more of the pressing points.
Abstract: An optical system for a stereo video endoscope including: first and second lens system channels each having optical elements in identical configurations, the optical elements being arranged in a same position along first and second optical axes, respectively, an optical axis of first and second optical elements coincide with the first and second optical axes, respectively, first and second cross-sectional areas of the first and second optical elements are inscribed in first and second circumferential circles, respectively, centers of first and second circumferential circles each coincide with the first and second optical axes, respectively, to define a maximum radius of the first optical element and the second optical element, the first and second circumferential circles overlap one another, and circumferential shapes of the first and second optical elements deviate from the first and second circumferential circles circumscribing them such that the first and second optical elements do not contact.
April 9, 2020
July 23, 2020
OLYMPUS WINTER & IBE GMBH
Martin WIETERS, Peter SCHOUWINK, Jianxin ZHAO, Alrun THUEMEN
Abstract: A microscope system includes a microscope that acquires a microscopic image and circuitry. The circuitry causes the microscope to perform a series of image-shooting operations for acquiring a plurality of microscopic images and outputs an access code generated in response to the start of the series of image-shooting operations, the access code being used to access image-shooting information pertaining to the series of image-shooting operations.
Abstract: A culture information processing device includes: a feature value computing unit that computes growth feature values indicating features of growth characteristics of cells from data acquired in a particular first subculturing process selected from among a plurality of subculturing processes included in a culture period of the cells; a condition setting unit that sets culturing conditions of a second subculturing process one process after the first subculturing process; and an information computing unit that computes, on the basis of the growth feature values computed by the feature value computing unit and the culturing conditions set by the condition setting unit, characteristics-related information related to growth characteristics in the second subculturing process.
Abstract: An endoscope apparatus includes a processor. The processor performs controlling a focus position of an objective optical system, acquiring images sequentially captured by an image sensor, and combining the images in N frames thus captured into a depth of field extended image in one frame. The processor controls the focus position such that focus positions at timings when the respective images in N frames are captured differ from each other. The processor combines the images in N frames that have been controlled to receive a constant quantity of light emission of illumination light or the images in N frames that have undergone a correction process to make image brightness constant, into the depth of field extended image.
Abstract: A treatment system includes a guide, tubular dilator members, an operation portion, and a holding portion. The guide extends linearly or curvilinearly. The dilator members pass the guide inside and are configured to move forward along the guide. The operation portion is configured to sequentially move the plurality of dilator members from a proximal end side of the guide to a distal end side of the guide. The holding portion is provided on the guide. A distance between outer edges of the holding portion in a direction intersecting a direction from the proximal end side toward the distal end side of the guide is larger or is configured to be larger than a distance between outer edges of the guide.
Abstract: A cell culturing control method includes obtaining an image signal obtained by imaging at least part of an inside of a culture vessel, the culture vessel containing a liquid medium and floating cells that float in the medium; computing a cell feature value from the image signal, the cell feature value being related to sizes or shapes of the floating cells; and generating, on the basis of the cell feature value, a stirring control signal that controls stirring of the medium performed in the culture vessel.
Abstract: A balloon catheter system includes: a light irradiation probe including, at a distal end portion of a fiber probe, a light irradiation portion for irradiating light; a balloon catheter including a shaft having a through hole through which the light irradiation probe is insertable, the through hole allowing liquid feeding, with the light irradiation probe being arranged, and a balloon provided to the shaft and configured to be expandable and contractable by a liquid injected into the balloon; and an injection apparatus including a measuring portion capable of measuring a quantity of the liquid, and an injection portion for injecting the liquid measured by the measuring portion into the balloon, and the balloon expands by the injected liquid, to thereby extend a wall of a region to be treated and retain the wall of the region to be treated in an extended state.
Abstract: An endoscope device includes: a light source configured to perform any one of simultaneous lighting and sequential lighting; an image sensor including a plurality of pixels; a plurality of filters including at least one type of primary filter and a complementary filter; and a processor including hardware, the processor being configured to cause the light source to switch between the simultaneous lighting and the sequential lighting, when the simultaneous lighting is performed, perform interpolation processing to generate an output image by using an imaging signal generated from a pixel corresponding to the complementary filter, and when the sequential lighting is performed, perform interpolation processing to generate an output image by using an imaging signal generated from a pixel corresponding to the complementary filter as an imaging signal generated from a pixel corresponding to the at least one type of primary filter.
Abstract: A prism holder for use with a surgical instrument, having a prism. The prism holder including: a casing for receiving the prism; and at least one prism pressure element configured to be brought into contact with a pressure surface of the prism; wherein the casing having an opening for arrangement of the at least one prism pressure element in the opening.
Abstract: The frequency at which a culture medium is replaced is reduced by prolonging the service life of the culture medium, the size of a device is reduced, cost is reduced, and a mechanical strength is enhanced. Provided is a cell culture device including: a culture container capable of accommodating cells and a culture solution; and an adsorbing member that is formed of a porous material having adsorption holes, the hole diameters of which are smaller than the cells and larger than impurities in the culture solution, and that adsorbs the impurities, without adsorbing the cells, in the culture solution by means of the adsorption holes while at least a portion of the adsorbing member is immersed in the culture solution in the culture container.
Abstract: A baby endoscope which forms a medical device includes: a rotary member; an exterior member which rotatably holds the rotary member about a predetermined rotation axis, houses the rotary member in the exterior member, and has a surface which is brought into contact with a portion of an outer peripheral surface of an operation section of a mother endoscope on an outer peripheral portion; and a bending operation lever mounted on the rotary member, and is disposed within a width of the exterior member in a direction of the rotation axis when the exterior member is viewed in a direction orthogonal to the rotation axis.
March 18, 2020
July 9, 2020
Takuto YOSHINAGA, Chikayoshi MEGURO, Tatsuhiko SUZUKI
Abstract: An observation system includes an observation apparatus including a housing having an arrangement surface for placement of a sample, the sample including a culture medium, and an external illumination unit which is disposed outside the housing and includes at least one light source configured to emit illumination light. At least a part of the arrangement surface is formed of a transparent member having an optically transparent property. The observation apparatus includes an imaging unit which is provided in the housing and includes an image sensor configured to image, via the transparent member, the sample illuminated by the illumination light from the external illumination unit to acquire images of at least three colors.
Abstract: A medical device retention system has a tubular first retention portion into which a medical device is inserted and configured to hold the inserted medical device; a second retention portion having a spherical shape with a predetermined radius and having a central point at a distal end side of the supported first retention portion; and a clamp configured to clip the second retention portion, wherein the clamp switches the second retention portion between a first state and a second state when the second retention portion is clipped by the clamp, when the clamp switches the second retention portion into the first state, movement of the second retention portion is fixed, and when the clamp switches the second retention portion into the second state, the second retention portion is movable along a predetermined surface with the central point as a movement center.
Abstract: An endoscope includes an imaging circuit that generates an imaging signal. The endoscope has a transmission path that connects the imaging circuit to a control device to perform image processing on the imaging signal. The endoscope also includes a phase synchronization unit having (i) a digital control oscillator that generates a drive clock signal, and (ii) a phase digital output circuit that generates and outputs a phase digital signal to the transmission path. A first switch of the endoscope connects the transmission path to one of the control device and the phase digital output circuit, and a second switch connects the transmission path to one of the imaging circuit and the digital control oscillator.
Abstract: A tissue clipping device and system, and method for clipping tissue are disclosed. The tissue clipping device includes a clip with clip arms that is slidably disposed within a channel of a lock tube. The clip is designed to move between an open configuration in which distal ends of the clip arms are separated from each other for receiving tissue therebetween, and a closed configuration in which the distal ends of the clip arms are closer to each other than in the open configuration for clipping the tissue received therebetween. The tissue clipping system further includes a delivery device for delivering and deploying the tissue clipping device. The delivery device is releasably coupled to the tissue clipping device.
December 10, 2019
July 9, 2020
Masaru YUASA, Yoshisane NAKAMURA, David Andrew DESMARAIS, Adam L SMITH, Amanda Kay WOODCOCK, Donald C. BAUMGARTEN
Abstract: An endoscope includes: an imager; a transmission path configured to connect a controller and the imager with each other; a superimposed signal generating circuit configured to generate, as a superimposed signal, a signal obtained by associating High and Low of a pulsed data signal with a change in a pulse width of a pulsed reference clock signal; a parallel-serial converter circuit configured to perform parallel-serial conversion on the imaging signal; a PLL circuit configured to generate a multiplied clock signal; a restoring circuit configured to restore, based on the superimposed signal and the multiplied clock signal, the reference clock signal and the data signal contained in the superimposed signal; and a timing generating circuit configured to generate, based on the reference clock signal and the data signal, a drive signal for driving the imager.
Abstract: A method for anastomosing an alimentary tract according to a first aspect of the invention includes a first step of inserting an endoscope into an alimentary tract through a natural opening in a state where a distal end part of a tube body is coupled to an outer periphery of a distal end part of the endoscope; a second step of making a hole in a tract wall of the alimentary tract; a third step of inserting the tube body through the hole; a fourth step of grasping the distal end part of the tube body disposed through the hole; a fifth step of separating the tube body from an outer periphery of the distal end part of the endoscope; and a sixth step of delivering the treatment part up to the hole after the fifth step.
Abstract: Provided is a method of molding an optical element to obtain the molded optical element. The method includes: preparing a die set including an upper die having an upper molding surface, a lower die having a lower molding surface, a side die in which a through hole is formed, and a sleeve configured to accommodate the upper die, the lower die, and the side die; disposing a mold material on the lower molding surface after inserting the lower die into the through hole of the side die; heating the mold material; press molding the mold material with the upper die and the lower die to integrally move the side die and the lower die with respect to the upper die and the sleeve; and pushing the optical element upward by raising the lower die with respect to the side die and the sleeve.
Abstract: An imaging device includes a first substrate and a second substrate stacked on the first substrate. The first substrate includes a plurality of pixels. Each pixel block includes all of the pixels disposed in one or more columns in an array of the plurality of pixels. The second substrate includes a plurality of AD conversion circuits configured to convert a pixel signal read from two or more pixels belonging to the pixel block corresponding to the AD conversion circuit to a digital signal. For all combinations of two pixel blocks adjacent to each other in the first substrate, two AD conversion circuits corresponding to the adjacent two pixel blocks are adjacent to each other in the second substrate.
Abstract: An optical measurement device includes: an optical sensor that detects pulsed signal light and that outputs a detection signal formed of an exponential-function response; an A/D converter that samples the detection signal output from the optical sensor and that converts the detection signal into a digital signal; and a processor comprising hardware, the processor being configured to subject the digital signal output from the A/D converter to inverse transformation by using a multiple diagonal matrix, thus calculating an estimated pulse of the signal light.
Abstract: A screen basket for the preparation of medical instruments. The screen basket having a substantially rectangular base area and an open upper side. The screen basket including: a first container part and a second container part, the first container part and the second container part each being open at an end face and each comprise a screen-like wall, the first container part being configured for insertion into the second container part; and at least one locking pin configured to be pushed through each of two or more push-through openings provided in one or more of the first container part and the second container part, the at least one locking pin selectively locking the first container part and the second container part together in at least two different positions with respect to each other.
Abstract: An endoscope includes a bending operation member provided at an operation portion and configured to bend a bending portion of an insertion portion, a plurality of bending operation wires configured to be pulled or relaxed by the bending operation member, a plurality of tubular members provided inside the operation portion, into which the plurality of bending operation wires are inserted respectively, and disposed in a deflected state so as to avoid an internal component provided inside the operation portion, and a tubular member fixing member provided inside the operation portion and enabled to optimally adjust end portions of the plurality of tubular members at different positions along a longitudinal axis of the operation portion in a direction orthogonal to the longitudinal axis.