Abstract: An injection needle apparatus in which an operation for relatively moving an outer tube 4 and an inner tube 5 is performed to project and retract a needle body 12 from and into a distal end of the outer tube 4, and to carry out a movement of rotation of the needle body 12 at a predetermined angle by relative forward and backward movements of the outer tube 4 and inner tube 5 in their longitudinal directions every time the forward and backward movement operations is repeated, thereby enabling changing a direction of a needlepoint 14 of the needle body 12 at each angle.

Abstract: The endoscope apparatus comprises an endoscope which has an imaging element and a monitor which displays an image imaged by the imaging element. The endoscope is provided with an internal insertion portion which is movably arrangeable inside a body cavity, and an operation unit for changing the position of the internal insertion portion, which is arrangeable outside the body. The internal insertion portion and the operation unit are arranged on a common axis so as to interpose a body wall therebetween.

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: This invention includes a clip having arms which grip living tissue, a press tube serving as a clamping member which is fitted and mounted on the clip to close the arms of the clip, a coupling member which can be inserted into the press tube and engages with the clip, and projections serving as lock portions which hold the arms of the clip in a closed state when the clip engages with the press tube.

Abstract: This invention includes a clip having arms which grip living tissue, a press tube serving as a clamping member which is fitted and mounted on the clip to close the arms of the clip, a coupling member which can be inserted into the press tube and engages with the clip, and projections serving as lock portions which hold the arms of the clip in a closed state when the clip engages with the press tube.

Abstract: This invention includes a clip having arms which grip living tissue, a press tube serving as a clamping member which is fitted and mounted on the clip to close the arms of the clip, a coupling member which can be inserted into the press tube and engages with the clip, and projections serving as lock portions which hold the arms of the clip in a closed state when the clip engages with the press tube.

Abstract: A cap for an endoscope includes: a cylindrical portion formed so that a distal end thereof protrudes forwardly from a distal end of an insertion portion of an endoscope; and a suction path that is connected to a suction device, and that communicates with an internal surface of the cylindrical portion.

Abstract: This invention includes a clip having arms which grip living tissue, a press tube serving as a clamping member which is fitted and mounted on the clip to close the arms of the clip, a coupling member which can be inserted into the press tube and engages with the clip, and projections serving as lock portions which hold the arms of the clip in a closed state when the clip engages with the press tube.

Abstract: A medical treatment system including an endoscope, a treatment tool that is inserted in a channel of the endoscope, and a holder that holds the treatment tool in a manner that enables a user who operates the endoscope to move the treatment tool forward and backward and rotate the treatment tool, with the treatment tool having a treatment portion that performs treatment on a living body; a wire for operating the treatment portion whose distal end is connected to the treatment portion; a sheath portion that has a first sheath that is formed with a coil and in which the wire is inserted in a manner capable of moving forward and backward in the axial direction, and a second sheath that is formed with a coil of a plurality of layers and provided on the outside of the first sheath; and an operating portion to which the base end of the wire is connected and enables forward/backward and rotation operation of the wire; and with the holder holding the operating portion so as to be in a predetermined positional relation

Abstract: An endoscopic surgery tool in which an image pickup device is provided on a hollow guide component that penetrates a body wall of a living body and guides a surgical tool into a body cavity, includes: a detection device that detects an amount of change in the tilt of the guide component when the guide component is tilted relative to the body wall using the portion passing through the body wall as a support point; and a correction device that calculates from the tilt change amount an amount of movement of the image pickup device that moves in conjunction with the tilting of the guide component, and makes corrections in order that an observation image from the image pickup device before the guide component was tilted is maintained after it has been tilted.

Abstract: An injection needle apparatus in which an operation for relatively moving an outer tube 4 and an inner tube 5 is performed to project and retract a needle body 12 from and into a distal end of the outer tube 4, and to carry out a movement of rotation of the needle body 12 at a predetermined angle by relative forward and backward movements of the outer tube 4 and inner tube 5 in their longitudinal directions every time the forward and backward movement operations is repeated, thereby enabling changing a direction of a needlepoint 14 of the needle body 12 at each angle.

Abstract: In a treatment endoscope which includes: an elongated insertion section having a first channel for inserting a treatment instrument therethrough; an arm, having a second channel for inserting a treatment instrument therethrough, attached to the distal end of the insertion section so that the first channel communicates with the second channel; a first operation section for operating the arm; and a second operation section for operating the insertion section, the arm has a first bending section which can be operated to be bent via the first operation section, the insertion section has a second bending section which can be operated to be bent via the second operation section, and an interlock mechanism connects the first operation section to the second operation section so that, when either one of the first bending section and the second bending section is bent by operating either one of the first operation section and the second operation section, the other one of the first bending section and the second bendin

Abstract: A medical instrument which is inserted into a body cavity includes: an insertion part which has a bending part capable of bending in a predetermined range; a plurality of joint rings which are provided in the bending part and are connected to each other in the axial direction of the insertion part; a manipulating part which manipulates the bending part; and a wire which is inserted into the plurality of the joint rings and connects the bending part with the manipulating part, wherein: the plurality of the joint rings comprises a connecting part, a portion of which is provided so as to protrude from the outer peripheral surface and which is connected to the joint ring of the distal side in the axial direction of the insertion part and a connected part which is connected to the joint ring of the proximal side in the axial direction of the insertion part; the connecting part has a linear cross section orthogonal to the axis of the joint ring, and a curved base portion which is a portion of the connecting part pr

Abstract: A medical instrument for performing a medical procedure within a body cavity includes: an insertion part which is inserted into the body cavity and has a bending part capable of bending in a predetermined range; a manipulating part which manipulates the bending part; a wire which connects the bending part with the manipulating part; and a clutch which is provided in the manipulating part and maintains a bending state of the bending part.

Abstract: A tissue shredding device is provided which includes a shredding pipe which is inserted into a patient body in which a plurality of opening portions is formed in a longitudinal direction; and a plurality of wires which is withdrawn from the opening portion, bent back outside the shredding pipe, and drawn into the shredding pipe. Here, the tissue shredding device may be changed to one of a first arrangement in which the wires are withdrawn from the shredding pipe so that a tissue can be introduced toward top portions corresponding to bent-back parts of the plurality of wires, a second arrangement in which the top portions are arranged opposite to the shredding pipe, and a third arrangement in which the wires are drawn into the opening portion.

Abstract: The present invention relates to a ligation apparatus that ligatures living tissue by a clip and provides an optimal ligation apparatus for ligaturing living tissue in a body cavity.

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: The endoscopic treatment instrument according to a first aspect of the present invention includes an insertion portion having a distal end and a proximal end, the distal end being inserted into a human body; a treatment portion provided at the distal end of the insertion portion; and a control portion provided at the proximal end of the insertion portion, and the treatment portion includes a pair of forceps members; a tip cover which supports a pivot shaft that pivots at least one of the pair of forceps members openably and closably with respect to the other forceps member; a distal end holding portion that is fixed to the distal end of the insertion portion and in which the tip cover is held relatively movably toward the distal end of the insertion portion and toward the proximal end of the insertion portion; a distal end locking member that restrains a relative movement by locking the tip cover onto the distal end holding portion when the pair of forceps members is opened to grasp a specified object; and a

Abstract: A treatment system includes a guide component that is used to insert a treatment tool into a body cavity, a tilt sensor that is provided in the guide component and detects an angle of inclination of the treatment tool that has been inserted inside the guide component, an insertion amount sensor that is provided in the guide component and detects an amount that the treatment tool has been inserted inside the guide component, a switching device that switches an observation range of images of an interior of the body cavity that are acquired by an observation device that has been introduced into the body cavity and are then displayed on a display unit, and a system control unit that drives the switching device based on information about the angle of inclination and insertion amount of the treatment tool.

Abstract: An instrument for an endoscope includes a first insertion portion having an base end to which an operation section is connected; a first offset portion extending outward from an axis of the first insertion portion; a second insertion portion having a base end joined to the first offset portion and an element extending parallel to the axis of the first insertion portion; a second offset portion which is joined to a head of the second insertion portion and reaches an extension of the axis of the first insertion portion; a third insertion portion which is joined to the second offset portion and has a portion arranged on an axis which is substantially the same as at least a part of the axis of the first insertion portion; and an inner hole formed through the first insertion portion, the first offset portion, the second insertion portion, the second offset portion, and the third insertion portion.