Yabe Hisao

Bio: Yabe Hisao is an academic researcher from Toshiba. The author has contributed to research in topics: Surface layer & Chromium. The author has an hindex of 7, co-authored 19 publications receiving 897 citations.

Endoscopic system and method for positioning an indwelling tube

Abstract: An endoscope including; a fixing member detachably mounted to a distal end portion of an endoscope insertion part for detachably fixing and holding a distal end portion of an indwelling tube or a distal end portion of a guide member for guiding the indwelling tube, both of which are provided along the axial direction of the insertion part, to the distal end portion of the insertion part.

Electronic endoscopic system

Abstract: PROBLEM TO BE SOLVED: To make it possible not only to magnify the depth of field but also to form an image of high resolving power even if an endoscope having an optical phase modulation mask is connected to a signal processor loaded with no restoration processing means corresponding to the optical phase modulation mask arranged to an endoscopic optical system and to further magnify the depth of field while forming an image of higher resolving power when the endoscope having the optical phase modulation mask is connected to the signal processor loaded with the restoration processing means corresponding to the optical phase modulation mask. SOLUTION: The image processing circuit 27 of a depth-of-field external processing circuit 12 is a circuit for applying filtering processing to an image signal and performs the response of an optical transmission function and image processing for restoring asymmetric aberration (blur) generated by a pupil modulation element. COPYRIGHT: (C)2003,JPO

Insertion assisting tool

Abstract: PROBLEM TO BE SOLVED: To provide an insertion assisting tool to smoothly facilitate an inserting function of an insertion part of an inserter in and out of internal organs. SOLUTION: An insertion assisting tool body is equipped with a connector 128, a seal member 124 and an air conduit tube 130. The connector 128 is capable of connecting an insertion duct 8 which communicates with internal organs and outside the body for examination, by the edge of the insertion duct 8 from outside the body for examination. A through-hole 122 communicates with the insertion duct 8 through the connector 128 and has a diameter greater than the outer diameter of an insertion part 22a of an inserter 22 to facilitate the sealing by the sealing member 124 between the through-hole 122 and an atmosphere within the internal organs through the insertion duct 8, to receive the insertion part 22a within the through-hole 122. One end of the air conduit tube 130 communicates with the through-hole 122, and the air conduit tube 130 is away from the through-hole 122 between the connector 128 and the seal member 124. The device is further equipped with an air feeding pump 136 and a pressure controlling valve 134. The air feeding pump 136 feeds air to the air conduit tube 130. The pressure controlling valve 134 is provided between the air feeding pump 136 and the air conduit tube 130 and is equipped with an actuation controlling mechanism to detect the pressure within the internal organs and control the actuation of the air feeding pump 136. COPYRIGHT: (C)2003,JPO

Wear resistant member for electronic equipment, and bearing and spindle motor therewith

Abstract: Wear resistant member for electronic equipment comprises a zirconium oxide sintered body of which specific resistance is in the range from 1 to 10 5 Ω·m. A conductivity enhancer of which specific resistance is 10 −5 Ω·m or less is compounded to a zirconium oxide sintered body to materialize specific resistance from 1 to 10 5 Ω·m. For a conductivity enhancer, carbides and nitrides of various kinds of metals can be used. Wear resistant member can be used as a bearing ball, being applied in a rotational driver of electronic equipment such as a magnetic recording device and an optical disk device. Deficiency due to static electricity of electronic equipment is cancelled due to specific resistance that a zirconium oxide sintered body has.

Signal processing apparatus and endoscope system

Abstract: PROBLEM TO BE SOLVED: To provide an endoscope system providing an image with an excellent quality by correcting dispersion in an amplification factor. SOLUTION: A processor 5 to be connected with an endoscope 2 incorporating a CCD 16 varying sensitivity impresses a sensitivity control signal to the CCD 16 along with a CCD driving signal, an amplification factor calculation circuit 37 calculates an amplification factor of each pixel and the minimum amplification factor via a switch SW based on the CCD output signal outputted from the CCD 16 via a switch SW, a correction factor calculation circuit 38 calculates a correction factor, and the correction factor is stored in a memory 39. The correction factor stored in the memory 39 is multiplied by the CCD output signal and a correction circuit 34 to correct the dispersion in the amplification factor of each pixel into an excellent-quality signal with less dispersion and to be outputted to a signal processing circuit 35. COPYRIGHT: (C)2005,JPO&NCIPI

Surgical Stapling Apparatus

Abstract: A surgical stapling device particularly suited for endoscopic procedures is described The device includes a handle assembly and an elongated body extending distally from the handle assembly The distal end of the elongated body is adapted to engage a disposable loading unit A control rod having a proximal end operatively connected to the handle assembly includes a distal end extending through the elongated body A control rod locking member is provided to prevent movement of the control rod until the disposable loading unit is fully secured to the elongated body of the stapling device

Surgical stapling instrument

Abstract: A surgical stapling instrument (1) comprises a body portion (2, 3), a handle (4) and a staple fastening assembly (8). The staple fastening assembly (8) includes a curved cartridge (10), which comprises at least one curved open row of staples, and a curved anvil (22), which is adapted to cooperate with the cartridge (10) for forming the ends of the staples exiting from the cartridge (10). The staple fastening assembly (8) is adapted to allow unobstructed access towards the concave inner faces of the cartridge (10) and the anvil (22). The cartridge (10) can be moved towards the anvil (22) from a spaced position for positioning tissue therebetween to a closed position for clamping the tissue. Preferably, a knife is contained within the cartridge (10) and is positioned such that there is at least one row of staples on at least one side of the knife.

Display screen or portion thereof with graphical user interface

Abstract: Newness and distinctiveness is claimed in the features of ornamentation as shown inside the broken line circle in the accompanying representation.

Surgical stapling instrument with an articulatable end effector

Abstract: A surgical instrument can comprise a channel configured to support a staple cartridge and, in addition, an anvil pivotable between open and closed positions relative to the channel. The surgical instrument can further comprise a cutting member configured to incise tissue positioned captured between the staple cartridge and the anvil and, in addition, means for stopping the cutting member prior to a distal end datum, wherein the distal end datum can be defined by the distal-most staple cavity in the staple cartridge. In such embodiments, the incision within the tissue may not extend beyond the portion of the tissue that has been stapled.

Articulating surgical stapling instrument incorporating a two-piece e-beam firing mechanism

Abstract: A surgical severing and stapling instrument, suitable for laparoscopic and endoscopic clinical procedures, clamps tissue within an end effector of an elongate channel pivotally opposed by an anvil. An E-beam firing bar moves distally through the clamped end effector to sever tissue and to drive staples on each side of the cut. The E-beam firing bar affirmatively spaces the anvil from the elongate channel to assure properly formed closed staples, especially when an amount of tissue is clamped that is inadequate to space the end effector. In particular, an upper pin of the firing bar longitudinally moves through an anvil slot and a channel slot is captured between a lower cap and a middle pin of the firing bar to assure a minimum spacing. Forming the E-beam from a thickened distal portion and a thinned proximal strip enhances manufacturability and facilitates use in such articulating surgical instruments.