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: An endoscopic treatment device is used with an endoscope. This treatment device includes a transmission member with a flexible structure having a distal end portion to be inserted into a body and can be operated outside the body, a push rod coupled to the distal end portion, and first and second connecting members rotatably coupled to the push rod. The treatment device further includes first and second arm members rotatably coupled to the distal end portion of the connecting member, a holding member rotatably holding the respective arm at a predetermined interval therebetween, and first and second actuating members integrally formed with the arm members and can open/close when the transmission member actuates the first and second connecting members and the first and second arm members through the push rod. This device also includes a needle mounted on at least one of the first and second actuating members.

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: A flexible shaft driven to rotate is inserted through a transparent sheath having pliability. By a fiber inserted through the inside thereof, low-coherence light is guided and is made to exit to a living-body tissue side which is an observation target through a lens and a prism forming an exit and entrance portion at the tip portion. Subsequently, the light reflected on the living-body tissue side is guided in order to produce an image. In that case, a positioning member for keeping the exit and entrance portion and the living-body tissue at a proper distance is formed at the tip portion of the sheath or the tip portion of an endoscope through which an optical probe is inserted and, therefore, a stable tomogram image can be produced.

Abstract: A flexible shaft driven to rotate is inserted through a transparent sheath having pliability. By a fiber inserted through the inside thereof, low-coherence light is guided and is made to exit to a living-body tissue side which is an observation target through a lens and a prism forming an exit and entrance portion at the tip portion. Subsequently, the light reflected on the living-body tissue side is guided in order to produce an image. In that case, a positioning member for keeping the exit and entrance portion and the living-body tissue at a proper distance is formed at the tip portion of the sheath or the tip portion of an endoscope through which an optical probe is inserted and, therefore, a stable tomogram image can be produced.

Abstract: An endoscope including; a fixing member detachably mounted to a distal end portion of an endoscope insertion part for detachably fixing and holding a distal end portion of an indwelling tube or a distal end portion of a guide member for guiding the indwelling tube, both of which are provided along the axial direction of the insertion part, to the distal end portion of the insertion part.

Abstract: An endoscopic treatment device is used with an endoscope. This treatment device includes a transmission member with a flexible structure having a distal end portion to be inserted into a body and can be operated outside the body, a push rod coupled to the distal end portion, and first and second connecting members rotatably coupled to the push rod. The treatment device further includes first and second arm members rotatably coupled to the distal end portion of the connecting member, a holding member rotatably holding the respective arm at a predetermined interval therebetween, and first and second actuating members integrally formed with the arm members and can open/close when the transmission member actuates the first and second connecting members and the first and second arm members through the push rod. This device also includes a needle mounted on at least one of the first and second actuating members.

Abstract: A flexible shaft driven to rotate is inserted through a transparent sheath having pliability. By a fiber inserted through the inside thereof, low-coherence light is guided and is made to exit to a living-body tissue side which is an observation target through a lens and a prism forming an exit and entrance portion at the tip portion. Subsequently, the light reflected on the living-body tissue side is guided in order to produce an image. In that case, a positioning member for keeping the exit and entrance portion and the living-body tissue at a proper distance is formed at the tip portion of the sheath or the tip portion of an endoscope through which an optical probe is inserted and, therefore, a stable tomogram image can be produced.

Abstract: An endoscope device is provided which includes a manipulation portion and an inserted portion connected thereto, and an endoscope holder is provided at an elevated position, for example, on a ceiling. The endoscope device is rotatably suspended from the endoscope holder with its inserted portion extending downward. The endoscope holder has an endoscope manipulation unit for operating the endoscope device and peripheral equipment.

Abstract: An endoscope including; a fixing member detachably mounted to a distal end portion of an endoscope insertion part for detachably fixing and holding a distal end portion of an indwelling tube or a distal end portion of a guide member for guiding said indwelling tube, both of which are provided along the axial direction of said insertion part, to the distal end portion of said insertion part.

Abstract: A flexible shaft driven to rotate is inserted through a transparent sheath having pliability. By a fiber inserted through the inside thereof, low-coherence light is guided and is made to exit to a living-body tissue side which is an observation target through a lens and a prism forming an exit and entrance portion at the tip portion. Subsequently, the light reflected on the living-body tissue side is guided in order to produce an image. In that case, a positioning member for keeping the exit and entrance portion and the living-body tissue at a proper distance is formed at the tip portion of the sheath or the tip portion of an endoscope through which an optical probe is inserted and, therefore, a stable tomogram image can be produced.

Abstract: An endoscope is provided which has a first forceps raising base and a second forceps raising base. The first forceps raising base is provided at a distal end opening of a first treating tool insertion channel formed at a distal end of an insertion section, and is adapted to be raised in a first direction. The second forceps raising base is provided at a distal end opening of a second treating tool insertion channel formed at the distal end of the insertion section, and is adapted to be raised in a second direction different from the first direction. The first and second raising directions of the first and second forceps raising bases are different from each other in at least two combinations.

Abstract: The present invention is directed to an endoscopic surgery apparatus for performing treating operation in a body cavity of a patient with the use of treating tools in combination with an endoscope, in which insertion sections allowing the insertion of treating tools are externally arranged in a side-by-side fashion with an insertion section of the endoscope set between these insertion sections and a balloon is provided near a distal end of the insertion section of the endoscope to adjust a relative distance between the insertion sections relative to the insertion section of the endoscope. The balloon is provided on the insertion section of the endoscope and, when the endoscope and treating tools are introduced into the body cavity of the patient, it is possible to easily and properly lead the endoscope and treating tools to a region of interest of the patient.

Abstract: An endoscope apparatus comprises an elongate insert section including an observation window in the distal end portion and inserted into an object to be observed; an observation device for producing an endoscope image, the observation device including a focusing optical system which receives an incident light from the object through the observation window to focus the endoscope image; and a vibration device for vibrating at least a part of the insert section in a direction crossing the axial direction of the insert section, the vibration device including a vibration unit capable of vibrating in itself to vibrate at least the part of the insert section even under a condition that the insert section is not contact with the object.