Abstract: A surgical forceps includes: an insertion portion including, an internal space formed along a longitudinal axis, a distal end portion, and a proximal end portion; a grasping portion provided at the distal end portion of the insertion portion; an operation rod having one end and the other end and arranged in the internal space of the insertion portion, the one end being connected to the grasping portion; an operation portion provided at the proximal end portion of the insertion portion and connected to the other end of the operation rod, the operation portion being configured to operate a movement of the grasping portion; and a portion to be operated provided in the vicinity of the distal end portion of the insertion portion, and connected to the operation rod such that the operation rod is movable according to an operation by an external force.

Abstract: A tissue resection apparatus includes a pair of grasping members that holds a tissue; and a cartridge that is replaceably attached to the pair of grasping members. The cartridge includes a cartridge body that has a longitudinal axis and a slot extending along the longitudinal axis, guides a cutting member cutting a tissue by the slot, and defines a movement range of the cutting member; a pair of sealing portions that are provided on both sides of the slot so as to sandwich the slot and extend parallel to the slot, respectively; and a tissue sealing portion that is located closer to a distal end side than the slot and is provided on an extension line of the slot.

Abstract: A medical operation device is attachable to an insertion portion of a medical instrument for observation.

Abstract: A medical instrument system includes an elongated member having an inner space in a direction of a longitudinal axis, an insertion section installed at the inner space and having a bending section capable of being bent, a manipulation section configured to manipulate the bending section, a first manipulation member transmitting a driving force of the bending section in accordance with the manipulation by the manipulation section, a second manipulation member arranged in the direction of a longitudinal axis, a connecting section having a first connecting section and a second connecting section and capable of connecting the first manipulation member and the second manipulation member, and a switching mechanism having a first acting section and a second acting section and switching between a connection state and a release state in accordance with a relative movement between the elongated member and the insertion section.

Abstract: Full-thickness excision of tissue of a lesion in a lumen is performed through a natural orifice. Specifically, the tissue surrounding the lesion that is in a folded state is joined and severed using a linear stapler. The linear stapler includes a cutter and is inserted into the lumen. Joining and cutting is performed while organs outside of the lumen are pushed in a direction away from the lesion with the tip of the linear stapler. As a result of these steps being repeatedly performed along the periphery of the lesion, the lesion is excised.

Abstract: A medical device for multiple bends, includes a distal-side traction member which is inserted through the distal-side bending portion and the proximal-side bending portion, which is configured to bend the distal-side bending portion in the bending orientation, and which includes a distal-side fixing portion fixed to the distal end of the distal-side bending portion in the axial direction, and a proximal-side traction member which is inserted through the proximal-side bending portion, which is configured to bend the proximal-side bending portion in the bending orientation, and which includes a proximal-side fixing portion fixed to the distal end of the proximal-side bending portion in the axial direction. The proximal-side fixing portion is disposed at substantially the same position as the distal-side fixing portion in a circumferential direction.

Abstract: A medical instrument system includes an elongated member having an inner space in a direction of a longitudinal axis, an insertion section installed at the inner space and having a bending section capable of being bent, a manipulation section configured to manipulate the bending section, a first manipulation member transmitting a driving force of the bending section in accordance with the manipulation by the manipulation section, a second manipulation member arranged in the direction of a longitudinal axis, a connecting section having a first connecting section and a second connecting section and capable of connecting the first manipulation member and the second manipulation member, and a switching mechanism having a first acting section and a second acting section and switching between a connection state and a release state in accordance with a relative movement between the elongated member and the insertion section.

Abstract: A medical device for multiple bends, includes a distal-side traction member which is inserted through the distal-side bending portion and the proximal-side bending portion, which is configured to bend the distal-side bending portion in the bending orientation, and which includes a distal-side fixing portion fixed to the distal end of the distal-side bending portion in the axial direction, and a proximal-side traction member which is inserted through the proximal-side bending portion, which is configured to bend the proximal-side bending portion in the bending orientation, and which includes a proximal-side fixing portion fixed to the distal end of the proximal-side bending portion in the axial direction. The proximal-side fixing portion is disposed at substantially the same position as the distal-side fixing portion in a circumferential direction.

Abstract: A method of treating a lesion of a tubular organ that communicates with a natural orifice of a subject is provided. In the method, a channel of the tubular organ is closed or substantially closed at a desired first position on a far side of the lesion. Then, the channel is closed or substantially closed at a second position near the orifice, i.e. on a near side of the lesion. Then, the tubular organ is linearized by charging a fluid into a closed space formed between the first and second positions by bringing the tubular organ into a closed or substantially closed state. Treatment tools are inserted into the linearized closed space to treat the lesion.

Abstract: A medical port includes: a faceplate having a through-hole; a fixing ring formed in an annular shape and having an outer circumferential surface in which an outer diameter is gradually increased from a first opening end opened at a faceplate side toward a second opening end opened at an opposite side of the faceplate side; and a moving member connected to the fixing ring and the faceplate and configured to move the fixing ring with respect to the faceplate such that the fixing ring is pulled toward the faceplate.

Abstract: A multi-degree-of-freedom forceps includes a insertion portion that has a first bending portion and a second bending portion connected to each other at both ends via an operating member; a treatment portion that is attached to the first bending portion and is used for tissue treatment; and an operating portion that is attached to the second bending portion to bend the second bending portion to thereby bend the first bending portion. The operating portion has a handle body capable of being swung relative to the insertion portion with the second bending portion as an operation center. The handle body has a grip portion that is gripped by a user in use. The grip portion is provided around the operation center or closer to the insertion portion side than the operation center.

Abstract: An electric bending operation device can be mounted to an insertion portion of a medical instrument for observation including an electric bending portion. The electric bending operation device may include: an insertion portion mounting mechanism; a rotation mechanism; an insertion portion operation section; and a support column.

Abstract: A medical operation device is attachable to an insertion portion of a medical instrument for observation.

Abstract: A rigid endoscope includes a first insertion section extending along longitudinal directions, a first needle defining an outer edge of a first opening, and a first functional section provided in a vicinity of the first opening of a first lumen, and configured to perform some part of functions. The rigid endoscope includes a second insertion section extending along the longitudinal directions, and located apart from the first insertion section in directions perpendicular to the longitudinal directions, a second needle defining an outer edge of a second opening, and a second functional section provided in a vicinity of the second opening of a second lumen, and configured to perform some part of the functions different from the functions performed by the first functional section.

Abstract: A medical system includes an insertion slave apparatus to be inserted into a body, a treatment slave apparatus to be inserted into the body together with the insertion slave apparatus to treat an object, an insertion master portion having a similar figure to the insertion slave apparatus and including a movable portion, wherein the insertion slave apparatus is to perform following actuation according to operation input to the insertion master portion, a treatment master portion to be operated by an operator, wherein the treatment slave apparatus is to perform following actuation according to operation input to the treatment master portion, and a connecting portion coupling the insertion master portion and the treatment master portion to each other, wherein the movable portion is to be moved through the connecting portion to operate the insertion master portion by holding and operating the treatment master portion.

Abstract: The electric medical instrument fitting is attached to a medical instrument holding device. The electric medical instrument fitting includes a fitting body, drive units for a plurality of second medical instruments, and an intermediate member. The fitting body has a fitting portion that enables attachment/detachment of a first medical instrument which can be arranged with an observation device and provided with channel holes for inserting treatment instruments, or which is provided with an observation device. The drive units for the second medical instruments can each be detachably connected with each second medical instrument provided with an insertion portion to be inserted into each channel hole, with a treatment portion being provided on the side of a distal end thereof. Each of the drive units for the second medical instruments is provided with a joint driver, an advancing/retreating driver and a rotation driver, for changing the position and the posture of the treatment portion.

Abstract: A medical operation device is attachable to an insertion portion of a medical instrument for observation.

Abstract: A manipulator operation system includes a treatment instrument distal end movement control section having an endoscope treatment instrument having a bending portion and a distal end portion, a bending driving section and a bending operating section. The manipulator operation system includes imaging mechanism having an imaging section that includes an optical system having a field curvature, images, observing mechanism having a display section that displays a taken image, detecting mechanism having a detecting section that detects an arrangement position of the distal end portion, field curvature information acquiring mechanism having a field curvature information acquiring section that acquires field curvature information of the taken image, and adjusting mechanism having an adjustment section that adjusts a ratio of an operation amount of the bending operating section and a driving amount of the bending driving section based on the arrangement position and the field curvature information.

Abstract: A surgical treatment instrument according to the invention includes an insertion portion, an operation portion provided on one end of the insertion portion, a treatment portion provided so as to extend from the other end of the insertion portion, two gripping members provided on the treatment portion, each having a gripping face, an open/close operating member provided on the operation portion to perform opening/closing by at least one of the two griping members being moved, variable angle operating members respectively provided on the operation portion to change the treatment portion to a predetermined angle, a braked member provided within the operation portion and operating in conjunction with the operation of the variable angle operation portion, and a braking member provided within the operation portion to brake the braked member by operating in conjunction with the operation of the open/close operation member, wherein the treatment portion maintains a predetermined angle by the braked member being brake

Abstract: An endoscope includes a driving portion which drives a bending portion and a degree of displacement calculating portion which calculates a degree of displacement of a distal end of the insertion portion when the distal end of the insertion portion is displaced by reaction force generated by a movement of a distal end of a surgical instrument projecting from the distal end of the insertion portion. The endoscope further includes a control portion which controls a driving amount of the driving portion to eliminate the displacement in accordance with the degree of displacement calculated by the degree of displacement calculating portion.