Hitoshi Mizuno has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
Abstract: A battery self-containing body, which self-contains a battery or a battery accommodating body, which accommodates a battery removably is attached to a capsule body including a drive circuit for driving an imaging device and an illuminating device. Thus, the power supply can be turned ON easily. In addition, the inside portion is sealed water-tightly. Thus, the battery self-containing body or a battery can be exchanged easily, which allows the easy reuse. The direction of the visual field of the imaging device is diagonal with respect to the axis of the capsule body. Furthermore, spiral-shape projections are provided on the peripheral surface of the cylinder form. Thus, the rotation allows the surface of canal cavity wall to be examined easily.
Abstract: The capsule-type medical device in accordance with the present invention is advanced the inside of the somatic cavities and lumens of humans being or animals for conducting examination, therapy, or treatment. The capsule-type medical device comprises a plurality of hard units and a soft linking unit which links the plurality of hard units and has a diameter less than that of any of the hard units, wherein one of the plurality of hard units is different in size from other hard units.
Abstract: On the side at hand of an optical probe, a whole rotation transfer connector rotates while being supported by a ball bearing and a slide bearing and, therefore, rotation is transferred to a flexible shaft. The relative position between the flexible shaft and an optical sheath is changed in accordance with the amount of screwing of a sheath stopping member on the side at hand into an outer cylinder by an external thread portion and an internal thread portion. When the optical sheath is moved furthermore, the flexible shaft is elongated due to elastic deformation because the length of the flexible shaft is regulated by the interval between a locking part of a locking member at the tip and a shaft stopping member. A tip housing is made to contact with the locking member while tension is applied to the flexible shaft by the rear end surface in the direction of the side at hand.
Abstract: An endoscope system has an electronic endoscope, a signal processing section and a data transmitting and receiving section. The electronic endoscope has an image pickup element at a distal end portion of an insert section thereof to be inserted in a body. The other end portion of the endoscope is located outside the body. The signal processing section processes an image signal obtained by the image pickup element. The data transmitting and receiving section transmits and receives data to and from a network environment by radio.
Abstract: A capsule-type endoscope comprising a capsule body, an image pickup element an illuminating elements, an image signal processing circuit, a memory, an image information transmitting circuit and an antenna for wireless transmission. The capsule body contains the pickup element, the illuminating elements, the processing circuit the memory, transmitting circuit and the antenna. While the capsule body remains in a living body, the image pickup element takes images of an interior of the living body. The processing circuit processes the image, generating image information. The memory stores the information. The transmitting circuit reads the information and supplies it to the antenna. The antenna transmits the information by radio, from the living body.
Abstract: According to a remote operation support system, a physician present in a remote place can view endoscopic images displayed in an operating room over a communication line, and change an image area or a viewing direction represented by endoscopic images in a desired manner by performing manipulations. The physician present in the remote place can thus support an operator present in the operating room. An endoscope system installed in the operating room and a remote control system installed in a control room located in the remote place are linked using a public communication line. The endoscope system has a signal transmission apparatus installed in the operating room. The signal transmission apparatus in the operating room converts a video signal and a control signal or patient data, which are produced by a CCU and a system controller respectively, and outputs resultant signals over the public line. The remote control system has a signal transmission apparatus installed in the control room.
Abstract: An endoscopic suturing device includes an endoscope, a curved needle detachably arranged at the distal end portion of or integrally embedded in the endoscope for suturing a tissue of the living body, a suture for suturing said tissue with the curved needle, and a drive arranged on the endoscope and operating the curved needle.
September 28, 2001
August 22, 2002
Sydney Sheung Chee Chung, Hitoshi Mizuno, Tetsuya Yamamoto
Abstract: An endoscopic suturing includes a suturing device having a curved needle to suture tissue. The endoscopic suturing device also includes a driving means to maneuver the curved needle. The curved needle and the driving means are placed at a distal end of the endoscopic suturing device. The endoscopic suturing device also includes a flexible endoscope connected to the suturing device.
September 28, 2001
August 22, 2002
Sydney Sheung Chee Chung, Hitoshi Mizuno, Tetsuya Yamamoto
Abstract: An endoscope device includes an inserting portion having a curving portion, electric motors for generating driving forces for curving the curving portion, an operation unit for controlling the drive of the electric motors, a universal cord the base end of which is connected to an endoscope external unit, a coupling member with which the respective one ends of the inserting portion and the universal cord are coupled and which has a treatment tool inserting port, a holding unit for holding the coupling member, and a holding member for disposing the holding unit at a predetermined position of an operation bed. According to this arrangement, the operability of a surgeon can be improved by improving not only a curving operability but also the insertion operability of an inserting portion and the operability of a treatment tool.
Abstract: A light scanning device has a tip structure which includes a light scanning part connected to a light source, and which is insertable into a body cavity and is formed so as to be water-tight. A controlling part controls the light scan through the tip structure, and the tip structure and the controlling part are also connected to each other in a water-tight manner by a slender tube through which a plurality of electrical cables pass. An electric connector is fixed with the proximal end portion of the tube in a water-tight manner, and is electrically connectable so as to be water-tight with and removable from this controlling part.
Abstract: A surgical manipulator system comprising an operation device, a slave manipulator, a medical device, and a controller. The operation device is located in a region to be operated by a surgeon. The slave manipulator can have access into a surgery region. The medical device is held by the slave manipulator and can be moved a body cavity. The controller can operate in a first mode to move the slave manipulator or the medical device, or both, such that the axis of the medical device passes a fulcrum fixed in a space even before the medical device is inserted into the body cavity.
Abstract: A low coherence beam emitted by a low coherence light source is split into two portions. One portion is transmitted from the outward end of a first single mode fiber via a detachable connector to a beam scanning probe, and then to a biological tissue; and the other is transmitted from an optical coupler placed midway along the light path via a second single mode fiber to a light path modifier. The light path modifier includes a galvanometer mirror to modify the light path length in accordance with a scan range, and a uniaxial stage to adjust the light path length to absorb the variation in lengths of different beam scanning probes. The light path is adjusted by the uniaxial stage such that the beam interference is detected for the scan range, to ensure stable acquisition of tomographic images.
Abstract: A surgical manipulator system comprising at least one surgical manipulator, at least one guide, a detector, and a drive controller. The surgical manipulator has a surgical device for performing a desired operation. The guide guides the surgical device. The detector detects a position and/or orientation relationship between the surgical device and the guide, and/or a position and/or orientation relationship between the surgical device and another surgical device. The drive controller controls the surgical manipulator such that the surgical device is guided by the guide.
Abstract: An endoscope system having an endoscope, a scope holder holding the endoscope, a magnetic three-dimensional position sensor, and a TV monitor. The sensor detects the position of an object and generates data representing this position. According to the data, the view field of the endoscope is switched.
Abstract: An apparatus for holding a medical instrument, such as an endoscope, in place without exerting an undue force on an insertion hole in an abdominal cavity of a subject even when the arm of a scope-holding section is unlocked, includes a four-link parallelogram mechanism. The four-link parallelogram mechanism includes a support arm for supporting a treating tool, an arm section parallel to the support arm and upper and lower arm sections connected to the upper and lower end sides of the support arm and arm section in a parallel relation. A support mechanism supports the arm sections of the four-link parallelogram mechanism to allow the arm sections to be moved in left/right and up/down directions, while being rotated, so that a straight line connecting an intersecting point P of a center line of the treating instrument inserted into an insertion hole in an abdominal wall of a subject and the center of the insertion hole to spherical bearings of the arm is set parallel to the upper and lower arm sections.
Abstract: A photochromic composition comprising (a) 100 parts by weight of a di(meth)acrylate compound represented by the formula (I): ##STR1## wherein R.sup.1 s each independently represent hydrogen or methyl, R.sup.2 s and R.sup.3 s each independently represent alkylene having 1 to 4 carbon atoms, X represents halogen other than fluorine, Y represents oxygen or sulfur, and m is an integer of 0 to 4, and (b) 0.01 to 5 parts by weight of a photochromic compound. The photochromic composition is excellent in heat resistance, mechanical strength, adhesion to a hard coat layer and moldability, and the photochromic properties thereof is highly resistant to light. By the use of the photochromic composition, a thin and light-weight photochromic lens or the like can be obtained.
Abstract: A sealing gun (31) of a sealant application unit, which controls the flow of the sealant in accordance with the value of an input signal, is attached to the end of a robot arm. The value of a signal applied to the sealant application unit (30) is controlled in association with acceleration/deceleration control of the moving speed of the sealing gun. The moving speed (TSA) of the sealing gun and the flow (SC) of the sealant discharged from the sealing gun are in direct proportion; therefore, the bead width becomes uniform independently of the moving speed (TSA) of the sealing gun.
Abstract: A wrist mechanism comprising a pipe 52 extended in relation to a front .alpha.-axis among the three axes of motion (.alpha.-axis, .beta.-axis, .gamma.-axis) of a wrist, on a center axis A--A of turning motion through the center of an .alpha.-axis reduction gear, a universal pipe coupling 61 provided in relation to a .beta.-axis on the center axis B--B of motion, a pipe 51 having one end connected to the pipe 52 and the other end connected to the pipe coupling 61, and a hose 4 extended along a support arm 3 and connected through the pipe coupling 61 to the pipe 51. The wrist mechanism is incorporated into a robot for work in which a fluid is used, such as an application of an adhesive and sealant.
Abstract: A bevel gear unit comprising a bevel gear (11), a ball bearing (B.sub.1) coaxially mounted on the shaft of the bevel gear (11) and in contact with the back surface (17) thereof, a double spacer including an inner race spacer (12) and an outer race spacer (13) and mounted on the shaft of the bevel gear (11) behind the ball bearing (B.sub.1), ball bearings (B.sub.2, B.sub.3) mounted on the shaft of the bevel gear (11) behind the double spacer, and a bearing nut (15) screwed onto a threaded portion of the shaft of the bevel gear (11) behind the ball bearings (B.sub.2, B.sub.3). The axial length (l.sub.1) of the inner race spacer (12) is made smaller than the axial length (l.sub.2) of the outer race spacer (13) by a preloading allowance (.delta.), and the outer race spacer (13) is provided with threaded holes (t.sub.1) in the rear surface (f.sub.1) thereof.