Abstract: A body insertion instrument has an inserting portion inserted into a body near a target organ as a target of surgery. The body insertion instrument further includes a space securing unit, disposed to the inserting portion, configured to secure a space, in which the target organ is operated on, one of between the target organ and an organ different from the target organ and between the target organ and one of an abdominal wall and a chest wall, and a drive unit configured to drive the space securing unit for acting force the one of between the target organ and the organ different from the target organ and between the target organ and the one of the abdominal wall and the chest wall.

Abstract: In the treatment method of the present invention, the operation is performed in the following steps: an apparatus is perorally inserted in the stomach, a distal end portion of the apparatus inserted in the stomach is introduced from the stomach into the peritoneal cavity, a membrane of part of the outer wall of the abdominal esophagus is removed by the distal end portion of the apparatus which is introduced in the peritoneal cavity, the distal end portion of the apparatus which is introduced in the peritoneal cavity is returned therefrom into the stomach, the stomach fundus is perorally pulled to the part of the outer wall of the abdominal esophagus, and the pulled stomach fundus is fixed to the part of the outer wall of the abdominal esophagus.

Abstract: A position information transmitting member for transmitting position information to a staple receiving portion is provided in a tissue stapler having a staple receiving portion which comprises the anvil of the stapler. Thereby, an operator can easily locate the position of and grasp the staple receiving portion located within a tissue to swiftly execute stapling. The tissue stapler includes a stapling portion provided with an endoscope inserting tube path, a stapling portion provided with a staple injecting portion arranged on a distal end side of the inserting portion, and a staple receiving member (anvil) arranged separately from the inserting portion, to be grasped by a treatment tool introduced via the inserting portion in a state when it is opposed to the stapling portion via a tissue, to bend a distal end portion of a staple pressed out from the staple injecting portion of the stapling portion which has penetrated through the tissue.

Abstract: An endoscopic treatment system is designed to suture or resect a lesion while ensuring the ease of insertion into a deep region in the large intestine. The endoscopic treatment system comprises an endoscope and a therapeutic instruments insertion aid into which the endoscope is inserted. The endoscopic treatment system further comprises: a pair of clamp forceps that clamps and lifts a living-body tissue; a lateral hole formed in the therapeutic instruments insertion aid and used to control the position of the living-body tissue clamped and lifted by the pair of clamp forceps or to control the lifting thereof; a ligature used to ligate the living-body tissue whose position or lifting is controlled by the lateral hole; and a cutter used to resect the living-body tissue at a position between a region ligated with the ligature and a region clamped and lifted with the pair of clamp forceps.

Abstract: When a living tissue of a ligation target is ligated by means of a snare wire, the snare wire is brought into contact with the living tissue of a ligation target, on a large contact face by means for preventing living tissue cut-in of a ligation target of at least one of a distal end chip and a rear end ring of a loop section of the snare wire, thereby preventing the living tissue of a ligation target from cutting into a contact face of at least one of the distal end chip and rear end ring of the loop section.

Abstract: A position information transmitting member for transmitting position information to a staple receiving portion is provided in a tissue stapler having a staple receiving portion which comprises the anvil of the stapler. Thereby, an operator can easily locate the position of and grasp the staple receiving portion located within a tissue to swiftly execute stapling. The tissue stapler includes a stapling portion provided with an endoscope inserting tube path, a stapling portion provided with a staple injecting portion arranged on a distal end side of the inserting portion, and a staple receiving member (anvil) arranged separately from the inserting portion, to be grasped by a treatment tool introduced via the inserting portion in a state when it is opposed to the stapling portion via a tissue, to bend a distal end portion of a staple pressed out from the staple injecting portion of the stapling portion which has penetrated through the tissue.

Abstract: The present invention is an endoscope apparatus including an endoscope comprising an observation optical system in which the angle of observable field of view for observing a therapeutic tool can be changed and an operating mechanism for changing the observable field of view; and an insertion guide tube for guiding the therapeutic tool into a body cavity, wherein the insertion guide tube is detachably positioned and supported in a predetermined position relative to the endoscope. With this apparatus, the therapeutic tool can be observed in an optimal observing state irrespective of whether the area to be observed is located near or far from a distal end of the endoscope.

Abstract: According to a treatment method of the present invention, an anterior wall of stomach and a posterior wall of stomach are pulled to each other, and a part of an inner surface of the anterior wall and a part of an inner surface of the posterior wall are joined to each other to extend an esophagus. A false esophagus is thereby formed. A part of a peritoneal cavity side of a fundus of stomach is made to perorally approach a part of a peritoneal cavity side of the false esophagus. The part of the fundus of stomach and the part of the false esophagus are perorally fixed to each other.

Abstract: In an endoscope therapeutic device having a plurality of introduction guide tubes for introducing a treatment tool into a body cavity, the introduction guide tubes are mutually joined at a position more proximal than bending portions thereof. Accordingly, the effects caused by the movement of the plurality of the introduction guide tubes are mutually invalidated at a joint portion as a fulcrum, so that the position of the introduction guide tube is relatively stabilized in the body cavity. As joining methods, there are integration, usage of a joint tool, and usage of an over tube. The operability is improved when the introduction guide tube is provided at the distal end thereof with a mechanism for retaining and/or rotating a distal end of a treatment tool inserted therethrough.

Abstract: In a medical system including an over-tube for inserting a tool, the medical system includes a restraining mechanism for restraining at least one of a relative movement between the tool to be inserted through the over-tube and the over-tube and a relative movement between the over-tube and the body cavity. The restraining mechanism includes a mechanism for engaging the tool with the distal end of the over-tube, a mechanism for supporting the over-tube outside the body cavity, and a mechanism for connecting the endoscope to the distal end of the over-tube. When engaging the tool with the distal end of the over-tube, a resilient strip or a balloon can be used. When supporting the over-tube outside the body cavity, at least two holders can be used.

Abstract: In the treatment method of the present invention, the operation is performed in the following step an apparatus is perorally inserted in the stomach, a distal end portion of the apparatus inserted in the stomach is introduced from the stomach into the peritoneal cavity, a membrane of part of the outer wall of the abdominal esophagus is removed by the distal end portion of the apparatus which is introduced in the peritoneal cavity, the distal end portion of the apparatus which is introduced in the peritoneal cavity is returned therefrom into the stomach, the stomach fundus is perorally pulled to the part of the outer wall of the abdominal esophagus, and the pulled stomach fundus is fixed to the part of the outer wall of the abdominal esophagus.

Abstract: A endoscope system having an insertion section to be inserted into a body cavity, an introducer for performing treatment in the body cavity, and a capsule endoscope. The capsule endoscope has an observation optical system and is used in combination with the introducer.

Abstract: An endoscopic treatment system is designed to suture or resect a lesion while ensuring the ease of insertion into a deep region in the large intestine. The endoscopic treatment system comprises an endoscope and a therapeutic instruments insertion aid into which the endoscope is inserted. The endoscopic treatment system further comprises: a pair of clamp forceps that clamps and lifts a living-body tissue; a lateral hole formed in the therapeutic instruments insertion aid and used to control the position of the living-body tissue clamped and lifted by the pair of clamp forceps or to control the lifting thereof; a ligature used to ligate the living-body tissue whose position or lifting is controlled by the lateral hole; and a cutter used to resect the living-body tissue at a position between a region ligated with the ligature and a region clamped and lifted with the pair of clamp forceps.

Abstract: An endoscope for treatment suitable to the treatment in a body cavity comprises an elongated soft observing optical unit having at least an observing optical system; and a unit inserting tool having a unit inserting channel in which the observing optical unit is inserted and a treatment tool inserting channel in which a treatment tool is inserted. The unit inserting channel of the unit inserting tool has a branching portion at which the unit inserting channel is branched into a first inserting channel and a second inserting channel. An observing window which is arranged at the end opening of the first inserting channel is provided in a surface at the distal-end and an observing window which is arranged at the end opening of the second inserting channel is provided in a surface at the halfway portion.

Abstract: A cylindrical proximal unit is disposed at the proximal end of an elongated insertion unit that has a CCD incorporated in a distal part thereof and that has a bending section. A light source unit, a circuit for producing a CCD driving signal in response to a signal received from an external unit by radio, and a motor unit for electrically driving the bending section are incorporated in the proximal unit. Thus, a light guide cable need not be led out of the proximal unit. This leads to easy operation. Moreover, by manipulating an operation unit separated from an endoscope, a motor included in the motor unit is driven by radio via a scope interface unit.

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 cylindrical proximal unit is disposed at the proximal end of an elongated insertion unit that has a CCD incorporated in a distal part thereof and that has a bending section. A light source unit, a circuit for producing a CCD driving signal in response to a signal received from an external unit by radio, and a motor unit for electrically driving the bending section are incorporated in the proximal unit. Thus, a light guide cable need not be led out of the proximal unit. This leads to easy operation. Moreover, by manipulating an operation unit separated from an endoscope, a motor included in the motor unit is driven by radio via a scope interface unit.

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: An endoscope having an insertion section to be inserted into a tubular cavity, an observation lens provided in a distal end of the insertion section, and a rounded distal portion protruding from the distal end of the insertion section in the insertion direction. The observation lens is positioned with its center displaced from the forewardmost tip of the rounded distal portion.