Abstract: A living-body tissue removing apparatus according to the present invention includes a grip portion, an inserting portion which is connected to the grip portion and is inserted in the body, an endoscope inserting channel which is arranged in the inserting portion and in which an endoscope is inserted, and a wiper member which is arranged in the inserting portion and is slid on a surface of a window portion of a front end portion of the endoscope when the wiper member is inserted in the endoscope inserting channel, wherein the inserting portion comprises a hole portion arranged at the position in the sliding direction of the wiper member.

Abstract: According to one aspect of the present invention, there is provided a treatment device for cutting a living tissue, comprising a main unit which is to be inserted into a body, a tip-end treatment portion which is disposed at a tip end of the main unit to cut the living tissue, a notch groove which is disposed at the tip-end treatment portion and which compresses the living tissue guided into the notch groove, and an electrode which is positioned in a part of the notch groove and which electrically cuts the living tissue compressed by the notch groove.

Abstract: The medical treatment endoscope according to the present invention includes a sheath having a flexibility; at least one arm member having a bending part that projects out from a front end of the sheath and performs bending actions; an open/close mechanism which directs the arm member from a direction along a central axis of the sheath to a direction deviated from the central axis of the sheath, and from a direction deviated from the central axis of the sheath to a direction along the central axis of the sheath; and a viewing device and an illuminating member that are disposed to the front end side of the sheath.

Abstract: A medical procedure carried out via a natural opening, comprising: fastening the distal end of thread members to a tissue in a body cavity in proximity to a targeted incision site via a first introduction member that is inserted into a body cavity through a natural opening of an examination subject; inserting a second introduction member having a cutting instrument attached to the distal end thereof into a body cavity through a natural opening of an examination subject and disposing the cutting instrument in proximity to the targeted incision site; and cutting the tissue by pressing the cutting instrument against the tissue while pulling the proximal end sides of the thread members.

Abstract: A medical procedure performed inside an abdominal cavity includes: performing a first treatment at a target position inside the abdominal cavity by a first apparatus that has been introduced percutaneously into the abdominal cavity; and performing a second treatment, using a second apparatus that has been introduced into the abdominal cavity via a natural aperture of a living body, in cooperation with the first apparatus inside the abdominal cavity, or alternatively, performing a second treatment that is necessitated as a result of the first treatment being performed after the first treatment has been performed.

Abstract: The incision instrument of the present invention includes: a substantially rod-shaped electrode that has one end and the other end; a cable that has one end that is electrically connected to the electrode; and a connecting portion that is provided at the other end of the cable and is connectable to a high frequency power supply.

Abstract: An overtube according to the present invention has an insertion portion having a distal end portion and a proximal end portion, at least the distal end portion being inserted into an examination subject; a first lumen formed in the insertion portion and in which a device for carrying out medical procedures in the examination subject is freely inserted and removed; a tissue cutting portion that is to be disposed at the distal end portion of the insertion portion traversing the first lumen and that cuts the tissue of the examination subject; and a holding portion that holds the tissue cutting portion at a position removed from a position traversing the first lumen.

Abstract: An overtube includes an insertion portion that has a distal end portion and a proximal end portion, and at least the distal end portion thereof is inserted into a subject; a first lumen that is formed in the insertion portion and that allows freely inserting and removing a device for carrying out medical procedures in the subject; puncture needles that pass through the insertion portion, have a control member connected to the proximal end portion of the insertion portion, and puncture tissue; and second lumens that are provided in the insertion portion and through which puncture needles are passed, the second lumens having on the distal end portion of the insertion portion openings through which distal ends of the puncture needles extend and retract, and the openings being provided on an inside of the insertion portion defined by the first lumen.

Abstract: In a bipolar cutter for a living body tissue, a groove part is formed in a member that is arranged close to an active electrode, thereby providing a constitution to cut while the blood stanching is ensured since when a heat amount generated by the active electrode is conducted in the member, an excessive heat conduction to the member is efficiently interrupted by a layer of air that is produced due to the groove part and the living tissue is thus provided with more heat.

Abstract: An endotracheal tube according to the present invention is used by being installed into a patient so as to use it together with a device having an insertion section which is inserted into the body. A portion overlapping with the device inserted into the patient is formed as a flat shape; and furthermore, an outer face portion formed along a longitudinal direction of a cross-section, of the portion formed in the flat shape contacts the device.

Abstract: A medical procedure performed via a natural orifice comprises: inserting a puncture device from an abdominal wall side into the vicinity of a target site in a hollow organ, and protruding the distal end thereof inside the hollow organ; introducing an observation device into the hollow organ via a natural orifice of a living body, and setting a target site at the hollow organ by checking the puncture device as an indicator; and treating the target site confirmed by the observation device by using an treatment device inserted via a natural orifice.

Abstract: An overtube according to this invention includes: an insertion part, that is inserted into a subject and has a lumen, through which a device insertion part of a device for performing a medical procedure inside a body of the subject is removably inserted, the insertion part being inserted into the subject; and a tissue incising part that is disposed at a distal end side of the insertion part so as to cross the lumen and incises a tissue of the subject.

Abstract: The medical treatment endoscope according to the present invention includes a sheath having a flexibility; at least one arm member having a bending part that projects out from a front end of the sheath and performs bending actions; an open/close mechanism which directs the arm member from a direction along a central axis of the sheath to a direction deviated from the central axis of the sheath, and from a direction deviated from the central axis of the sheath to a direction along the central axis of the sheath; and a viewing device and an illuminating member that are disposed to the front end side of the sheath.

Abstract: An overtube according to this invention includes: an insertion part, that is inserted into a subject and has a lumen, through which a device insertion part of a device for performing a medical procedure inside a body of the subject is removably inserted, the insertion part being inserted into the subject; and a tissue incising part that is disposed at a distal end side of the insertion part so as to cross the lumen and incises a tissue of the subject.

Abstract: The medical treatment endoscope according to the present invention includes a sheath having a flexibility; at least one arm member having a bending part that projects out from a front end of the sheath and performs bending actions; an open/close mechanism which directs the arm member from a direction along a central axis of the sheath to a direction deviated from the central axis of the sheath, and from a direction deviated from the central axis of the sheath to a direction along the central axis of the sheath; and a viewing device and an illuminating member that are disposed to the front end side of the sheath.

Abstract: According to one aspect of the present invention, there is disclosed a treatment sheath for endoscopic blood vessel harvesting, comprising a sheath main unit which can be inserted into a body through a cut skin portion in order to harvest a blood vessel in the body, a channel which is formed along a longitudinal direction in the sheath main unit and through which an endoscope is inserted so as to be insertable/detachable, a blood vessel holding member which is disposed at the sheath main unit and which holds the blood vessel to be harvested; and a blood vessel cutting device which is disposed at the sheath main unit and is positioned substantially symmetrically with the blood vessel holding member with respect to the channel and which cuts the blood vessel to be harvested.

Abstract: In an apparatus to harvest a living body tissue, in order to prevent pressure in a body cavity exceeding a predetermined value, a living body tissue harvesting apparatus according to the present invention has a grip section and an insertion section to be inserted into the body cavity. Further, in order to discharge a predetermined gas from an opening part provided on the insertion section, the living body tissue harvesting apparatus has a gas supplying tube for supplying the predetermined gas into the insertion section, and a space for releasing the predetermined gas supplied into the body cavity.

Abstract: There is disclosed a living tissue harvesting apparatus according to one aspect of the present invention, comprising a sheath which can be inserted in a body through a cut skin portion, an endoscope inserted through the sheath, a cutting device which is disposed at the sheath and which can cut a living tissue, and a holder which is disposed at the sheath to hold a harvesting object tissue in the body and which includes a press discharge portion to press-discharge the harvesting object tissue in a direction detached from the cutting device, wherein the holder includes a hook portion to catch the living tissue in a position disposed opposite to the cutting device, and the cutting device and hook portion can move with respect to each other.

Abstract: There is disclosed a living tissue harvesting apparatus according to one aspect of the present invention, comprising a sheath which can be inserted in a body through a cut skin portion, an endoscope inserted through the sheath, a cutting device which is disposed at the sheath and which can cut a living tissue, and a holder which is disposed at the sheath to hold a harvesting object tissue in the body and which includes a press discharge portion to press-discharge the harvesting object tissue in a direction detached from the cutting device, wherein the holder includes a hook portion to catch the living tissue in a position disposed opposite to the cutting device, and the cutting device and hook portion can move with respect to each other.

Abstract: The present invention provides a system including a stereoscopic endoscope having left and right image pickup units for picking up parallactic images of an object through objective lenses laterally arranged at a distance from each other and CCDs laterally arranged at a distance from each other. In the stereoscopic endoscope, the focal distance is variable by moving focusing lenses. A display control unit is constructed so as to mask image pickup areas in left and right images display in left and right display elements on the basis of information regarding the distance to an object, the image pickup areas being picked up-only by one of the left and right image pickup units. Thus, images corresponding to an area that is picked up in common by both the left and right image pickup units are displayed.