Abstract:
An endoscope includes: an insertion section inserted into a subject; an operating unit continuously connected to a proximal end of the insertion section; an observation unit disposed at a distal end of the insertion section, and configured to observe the subject; a treatment instrument insertion passage configured to allow insertion of a treatment instrument providing medical treatment to the subject, and project the treatment instrument from a distal end portion of the insertion section; a distal bending portion disposed at a distal end of the treatment instrument insertion passage, and configured to bend according to a raising operation of the operating unit, the distal bending portion including a tube including a super elastic alloy and including a slit formed to reduce power required for the bending operation, and being configured to raise the treatment instrument; and a coating portion provided to cover the distal bending portion.
Abstract:
A treatment instrument lifting adjusting portion including a lifting member and an operation wire is disposed outside of a treatment instrument guiding-out path including an exit member and a tube in a distal end portion. Thus, cleaning work can be performed by inserting, for example, a brush into the treatment instrument guiding-out path, and is easily performed similarly to an endoscope of a type having no treatment instrument lifting function.
Abstract:
An ultrasound endoscope includes: a balloon suction duct that is provided inside an insertion portion and that is where liquid inside a balloon is suctioned through, the balloon covering an ultrasound transducer positioned at a distal end of the insertion portion; a rigid portion that includes a balloon groove and an end surface positioned at an end portion of the rigid portion, the end portion being on a distal end side of the balloon groove, the end surface being a surface intersecting a longitudinal direction of the insertion portion, the end surface having an opening formed thereon, the opening communicating with the balloon suction duct; and a holder that is positioned on a distal end side of the rigid portion, the holder being configured to hold the ultrasound transducer.
Abstract:
An endoscope includes a distal-end hard portion at a distal end of an insert, including a body, housing, first and second grooves in the body to extend inwardly, and a through-hole communicating the first and second grooves in the housing; a forceps-raising table in the first groove, including a fitting-groove along a through-hole extending direction; an arm portion including a pillar extending from the second groove to the first groove, a fit-in portion fitted in the fitting-groove on one side, and a connecting portion on the other side, the connecting portion being connected with a forceps-operating wire; and a seal portion on a periphery of the pillar, sealing water-tightly a first gap and a second gap, the first gap being between a periphery of the pillar and a periphery defining the through-hole, and the second gap being between the periphery of the pillar and a periphery defining the fitting-groove.
Abstract:
An ultrasound transducer array according to an embodiment includes a substrate, a plurality of groove-like recesses arranged at a predetermined interval on one surface of the substrate, a cell region arranged between the recesses on the one surface side of the substrate, a flexible film configured to cover the substrate and the cell region and having fragility lower than fragility of the substrate, and a dividing groove having a width smaller than a width of the recess and reaching from the other surface of the substrate to the flexible film in the recess.
Abstract:
An endoscope includes an insertion unit configured to be inserted into a subject, and allow a treatment tool to protrude from a distal end thereof. The insertion unit includes: a rigid member having a treatment tool insertion hole; a raising base that adjusts, by turning, a protruding direction of the treatment tool; a first guide groove that is formed on an outer surface of the raising base and holds the treatment tool; and a second guide groove that is formed on at least a part of an inner surface of the treatment tool insertion hole and includes an opening having a width smaller than a diameter of the treatment tool insertion hole. The first guide groove and the second guide groove have the treatment tool interposed therebetween in all of set states of the raising base.
Abstract:
An endoscope includes an insertion portion, insertable into a subject, which allows a treatment tool to protrude from a distal end side thereof, and includes: a hard member having a treatment tool insertion hole, and a housing groove extending toward a distal end from the treatment tool insertion hole; and a raising base housed rotatably in the housing groove, to be in a raised state or an inverted state, by rotating the raising base, the raising base being abuttable on the treatment tool to adjust a protruding direction of the treatment tool from the housing groove, wherein a first introduction portion, a uniform portion, and a second introduction portion are provided continuously to form a space from a distal end to a proximal end of the insertion portion and between the raising base and a bottom of the housing groove while the raising base is in the inverted state.
Abstract:
An endoscopic treatment tool includes a sheath; a treatment portion capable of protruding and retracting from a distal end of the sheath; a manipulation main body; a slider which advances and retracts in a longitudinal axis direction to cause the treatment portion to protrude and retract from the sheath; a first locking mechanism which locks the slider at a position at which the distal end of the treatment portion is accommodated in the sheath in accordance with a retracting manipulation of the slider; a second locking mechanism provided at further distal side than the first locking mechanism and restricts advance of the slider by being locked to the manipulation main body; a fixing mechanism provided in the second locking mechanism and fixed to the manipulation main body by sliding; and a restricting portion which restricts fixing of the fixing mechanism to the manipulation main body.
Abstract:
An endoscope includes an insertion portion, the endoscope being configured to allow a treatment tool to protrude from the insertion portion. The endoscope further includes: a treatment tool elevator base configured to be elevated by rotation around a rotation shaft with respect to a direction in which the insertion portion extends; an operating portion configured to input operation of changing an angle of elevating the treatment tool with respect to the treatment tool elevator base; a wire configured to be connected to the operating portion; a first member including a first engagement portion; and a second member including a second engagement portion and a wire connection portion to be connected to the wire, the second member being configured to: be supported so as to be rotatable with respect to the rotation shaft; and transmit the operation to the treatment tool elevator base.