Abstract: A treatment device for an endoscope includes an operating wire having a treatment section at a distal end thereof, a first sheath through which the operating wire is inserted, a second sheath into which the first sheath is inserted, a locking portion provided in the treatment section to advance or retreat, a first stopper that regulates advance movement of the locking portion, a second stopper that regulates retreat movement of the locking portion, and a sheath operating portion that advances or retreats the second sheath between a first positional relationship and a second positional relationship. The first stopper is provided in the first sheath via a connecting portion that extends toward the front side from a distal end of the first sheath, and the second stopper is provided in the second sheath on the rear side of the first stopper in the direction of the axis.

Abstract: An endoscopic instrument includes: a knife; a wire having a distal end connected to the knife; a sheath around the wire; a main body having the freely rotative sheath fixed thereto; a slider fixed to the wire, slidable in an axial direction of the main body; a stopper projecting radially from the wire; a first-distal-regulation section in the sheath for regulating distal sliding movement of the wire by making contact with the stopper; and a second-distal-regulation section, provided distal to the first-distal-regulation section, for regulating sliding movement of the wire by making contact with the stopper, wherein the stopper is capable of moving between the first-distal-regulation section and the second-distal-regulation section by rotating the main body relative to the sheath around an axial line by predetermined angle, and at least two different projection lengths can be maintained by contacting the main body to the first-distal-regulation section or the second-distal-regulation section.

Abstract: A treatment tool of the invention includes: a treatment part that can swing about a predetermined swing axis in order to perform treatment to a biological tissue; a plate-like wire-connecting part provided at the treatment part, the wire-connecting part having a predetermined thickness and a through hole formed therein in its thick direction; a linear swing manipulation wire, on one end side whereof are formed a first contacting part that is inserted into the through hole and contacts one face of said wire-connecting part in the thickness direction thereof, and a second contacting part that contacts another face of said wire-connecting part in the thickness direction thereof; a securing member, secured on said one end side of said swing manipulation wire, that holds the first contacting part and the second contacting part such that the first contacting part slides along the face, and the second contacting member slides along the other face; and a manipulating part, provided at another end of the swing manipul

Abstract: An endoscope system has an driving-section for driving an insertion-section having an instrument. The driving-section is supported by a pivoting section rotatively. The driving-section has two rollers facing each other. The insertion-section is disposed between the rollers. The insertion-section is extended or retracted by rotating the rollers if the rollers are disposed with respect to the extension/retraction direction. If the pivoting section is pivoted to be orthogonal to the extension/retraction direction, the insertion-section rotates around its axial line by the rotation of the rollers. By doing this, it is possible to rotate the instrument easily in the endoscope system for extending/retracting the instrument by electric power.

Abstract: A treatment device for endoscope includes a flexible sheath, an operation wire that is advanceably/retreatably inserted into the sheath, a treatment part comprising at least one elastic wires that can enter and exit a tip side inner part of the sheath, and a connecting member that secures to each other a tip of the operation wire and ends of the elastic wires. The connecting member includes a cylindrical body part, and a plurality of walls that extend from one end face of the body part in the direction of the axis of the body unit. A proximal end of the operation wire is secured to the body part, and the plurality of ends of the elastic wires are secured to the wall in the direction of the axis; when viewed from the wall side in the direction of the axis, at least one of the ends of the elastic wires overlaps with the body part. The interval between mutually adjacent walls is narrower than the outer diameter of the elastic wires.

Abstract: A ligation apparatus includes an insertion tube extending toward one direction, a clamp part which is provided on a distal side of the insertion tube and clamps a living organ, a first control mechanism which is connected to the clamp part via a first control shaft member inserted inside the insertion tube and controls opening-and-closing action of the clamp part by advancing and retracting the first control shaft member, a ligation part which ligates the living organ by closing a pair of arm members provided on the distal side of the insertion tube; and a second control mechanism which is connected to the ligation part via a second control shaft member inserted inside the insertion tube, and closes the pair of arm members and releases the ligation part by advancing and retracting the second control shaft member.

Abstract: A lesion identification system for surgical operations has a light marker adapted for placement in the vicinity of a lesion inside an organ of an organism, and a location-identifying device detecting a light emitted from the light marker at an outside of the organ for identifying a location of the lesion. The marker includes a light emitter and an engagement member associated with the emitter to be engageable with a wall of the organ. The engagement member includes a clip. The light emitter emits light with a wavelength in a near-infrared range. The device includes an endoscope comprising an inserter section having an image pickup element picking up a reflected light, involving the light from the light marker, at an outside of the organ, and an image pickup unit allowing the reflected light, picked by the image pickup element, to be generated as an image for display on a monitor.

Abstract: A soft bipolar forceps includes a long narrow flexible tube; paired forceps pieces that are formed extending in the axial direction, and are mutually insulated and disposed opposite one another; and a support that is disposed to the distal end of the flexible tube and supports the paired forceps pieces to permit relatively free opening and closing thereof; characterized in that a first electrode is disposed to one of the paired forceps pieces, a second electrode is disposed to the other of the paired forceps pieces opposite the first electrode, and a guide part that extends to permits elastic deformation is disposed to the distal end of the first electrode.

Abstract: This treatment instrument (1) for an endoscope is provided with a treatment section (2) for treatment, an operation wire (2) connected with the treatment section (2), a coil sheath (9) into which the operation wire (3) is inserted, an insulating tube (10) into which the coil sheath (9) is inserted, and an operation section (4) for operating the treatment section (2). The operation section (4) comprises a slider (15) rotatably connected with the operation wire (3), a body (13) to which the slider (15) is mounted movably forward and backward, and a rotational operation section (14) which is so mounted as to be rotatable with respect to the body (13) and has the coil sheath (9) so mounted thereto as to be not rotatable. The distal end of the insulating tube (10) is mounted rotatably and movably forward and backward to the distal end of the coil sheath (9).

Abstract: This endoscopic treatment system is provided with an insertion-retraction and rotating device for a treatment tool, which performs an insertion-retraction operation along a direction of an axis of a treatment tool and a rotating operation around the axis, of the treatment tool inserted in a channel of an endoscope.

Abstract: A lesion identification system for surgical operations has a light marker adapted for placement in the vicinity of a lesion inside an organ of an organism, and a location-identifying device detecting a light emitted from the light marker at an outside of the organ for identifying a location of the lesion. The marker includes a light emitter and an engagement member associated with the emitter to be engageable with a wall of the organ. The engagement member includes a clip. The light emitter emits light with a wavelength in a near-infrared range. The device includes an endoscope comprising an inserter section having an image pickup element picking up a reflected light, involving the light from the light marker, at an outside of the organ, and an image pickup unit allowing the reflected light, picked by the image pickup element, to be generated as an image for display on a monitor.

Abstract: A high-frequency treatment instrument that is used by being supplied with high frequency current from a power supply includes: a treatment portion main body that is used to treat biological tissue; a conductive portion that is provided on a surface of the treatment portion main body that is in contact with the biological tissue such that it is not electrically connected to the treatment portion main body; and a power supply device that electrically connects together the conductive portion and the power supply such that a conductive external surface thereof is not exposed, and that is positioned such that it is not electrically connected to the treatment portion main body. According to this high-frequency treatment instrument, it is possible to prevent supplied high frequency current leaking from portions other than the treatment portion, and to perform treatment efficiently.

Abstract: An endoscopic treatment tool includes: a treatment part which is adapted to conduct treatment of tissue within a body cavity; an operation part which is adapted to operate the treatment part; an operation shaft member which connects the treatment part and the operation part; and a coil sheath part through which the operation shaft member passes so that the operation shaft member is capable of forward or backward movement, in which: the coil sheath part comprises: a first coil sheath around which wire is helically wound; and a second coil sheath that has a lower compressive resistance than the first coil sheath, and that has a higher rotation follow-up capability than the first coil sheath; the first coil sheath and the second coil sheath are disposed so as to coaxially and radially overlap; a first end part and a second end part of the second coil sheath are respectively connected to the treatment part and the operation part so as to be incapable of relative rotation around an axis of the second coil sheath;

Abstract: An ultrasonic treatment apparatus includes a sheath having an opening at a distal end thereof; an ultrasonic transducer provided at a distal portion of the sheath and generating ultrasonic vibration; an ultrasonic transmission member connected to the ultrasonic transducer at a proximal end thereof, transmitting the ultrasonic vibration, and provided with a treatment part at a distal end thereof; a gripper moving to the treatment part and grasping the part to be treated between the gripper and the treatment part; a link member connected to the gripper and provided on a side of the ultrasonic transmission member; a manipulator part connected to a proximal end part of the link member to open and close the gripper; and a rigid member which the ultrasonic transducer is inserted into and secured to.

Abstract: A capsule medical apparatus includes a living tissue drawing portion in which a space for drawing the living tissue into a body of the capsule medical apparatus is formed; a movable unit that includes an engaging unit, which can be engaged with the living tissue of the subject, and that moves on a surface of the body of the capsule medical apparatus and in the living tissue drawing portion; an injection needle that has an ejection port for a drug and that protrudes such that the ejection port is positioned in the living tissue drawing portion; and an injection needle driver that drives the injection needle such that the injection needle protrudes.

Abstract: An endoscopic therapeutic instrument has a therapeutic section, a flexible transmission member which transmits operating driving forces to the therapeutic section by moving forwardly and reversely, and a sheath section in which the transmission member can move forwardly and reversely. A proximal side of this transmission member is connected to an operating tube section, and the therapeutic section is driven by forward and backward movements of the operating tube section. An endoscope having a channel into which the endoscopic therapeutic instrument is insertable, contains a mechanism for driving the sheath section and a mechanism for driving the operating tube section. The endoscope controls these mechanisms to cooperate with each other in controlling the endoscopic therapeutic instrument operations.

Abstract: An endoscopic surgical instrument has an insertion portion to be inserted in a channel of an endoscope, a treatment portion provided at a tip of the insertion portion for treating an objective part and a manipulation portion provided close to a proximal end of the insertion portion. The operator can move the insertion portion forward and backward at least relative to the channel by operating the manipulation portion in a state the endoscopic surgical instrument is inserted in the channel of the endoscope. In this manner, by the manipulation portion, the endoscopic surgical instrument can be operated to move forward and backward relative to the channel. Therefore in case the manipulation portion is located close to a channel entrance (forceps port) of the endoscope, the operator of the endoscope is able to manipulate the endoscopic surgical instrument without assistance from others.

Abstract: A solid-state imaging device includes: a plurality of pixels arrayed in the vertical transfer direction and in the horizontal transfer direction; a vertical CCD shift register disposed between two pixels adjacent in the horizontal transfer direction of the plurality of pixels; a first channel stop portion used for separation between pixels, formed between the two pixels adjacent in the horizontal transfer direction, and pixels adjacent to the two pixels adjacent in the horizontal transfer direction, in the horizontal transfer direction; and a readout gate portion and a second channel stop portion, formed in a direction parallel to the vertical transfer direction between the pixels and the vertical CCD shift register, with the two pixels adjacent in the horizontal transfer direction sharing the vertical CCD shift register, and with an insulating layer which is thicker than the gate insulating layer of the vertical CCD shift register being formed above the first channel stop portion.

Abstract: An endoscopic treatment instrument is provided which includes: a sheath 2 having electrical insulating properties; a pair of arm portions 3A and 3B which are disposed opposite to each other, which protrude and retract with respect to the sheath 2, and which accordingly open and close to thereby hold an object to be treated; a cutting electrode 5 which is protruded from and fixed to the distal end of the sheath 2 and which supplies a high-frequency electric current when it touches the object to be treated.

Abstract: An over-tube for use in an endoscopic treatment in an abdominal cavity using an endoscope includes an over-tube main body which is inserted from a distal portion thereof via a natural opening in a patient's body to access the inside of the abdominal cavity from the distal portion through a lumen wall, and an internal cover which is disposed in a passage of the endoscope disposed in an inner cavity of the over-tube main body and which is extractible from a proximal portion of the over-tube main body.