Nobuyuki Matsuura

Bio: Nobuyuki Matsuura is an academic researcher from Olympus Corporation. The author has contributed to research in topics: Duct (flow) & Integrally closed. The author has an hindex of 5, co-authored 8 publications receiving 1047 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.

Medical treatment method and apparatus

Abstract: A medical treatment method comprises orally inserting a first endoscope having a first treatment tool provided thereto into a body cavity, inserting a first insertion member insertion support tool from at least one of abdominal and transdermal cavities into the body cavity, inserting a second endoscope having a second treatment tool provided thereto into the body cavity through the first insertion member insertion support tool, grasping a lesioned part by the second treatment tool inserted into the body cavity by the second endoscope, cutting the lesioned part by the first treatment tool inserted into the body cavity by the first endoscope, and collecting the lesioned part.

Overtube for endoscope and endoscope system

Abstract: An overtube for an endoscope includes a tube body, a balloon, a first-communication-path, a second-communication-path, a first-mouthpiece, a second-mouthpiece, a first-connection-section which is provided on the first-mouthpiece, and a second-connection-section which is provided on the second-mouthpiece. The balloon is dilatably/deflatably provided on the tube body. The first-communication-path extends from a distal-end-portion toward a proximal-end-portion of the tube body in a state in which the first-communication-path communicates with the balloon. The second-communication-path extends from a hollow-portion toward the proximal-end-portion of the tube body. The first-mouthpiece projects from the tube body and includes a path communicating with the first-communication-path. The second-mouthpiece projects from the tube body and includes a path communicating with the second-communication-path. The first-connection-section is connected to a first-feed-portion of a fluid-feed-mechanism and is prevented from being connected to a second-feed-portion of the fluid-feed-mechanism. The second-connection-section is connected to the second-feed-portion and is prevented from being connected to the first-feed-portion.

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

Enteroscope and enteroscope system

Abstract: PROBLEM TO BE SOLVED: To provide an enteroscope and an enteroscope system, even in a long and large alimentary canal such as the small intestine, easily orally or transanally inserted into a targeted site in the body cavity and reducing the fatigue of an operator and the burden on a patient. SOLUTION: This enteroscope 1 having a rigidity variable mechanism 11 is characterized in that the rigidity variable mechanism 11 is provided within a range of roughly 100 cm-150 cm from a proximal end toward the distal end of an insertion tube 2 of the enteroscope 1. COPYRIGHT: (C)2006,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.