초록 ▼

An ergonomically superior endoscopic suction-irrigation instrument for surgery comprises a telescope sheath connected at an adjustable angle, preferably approximately 30°, to a vertically elongated handle having thumb-operated irrigation and suction valves and a hook for supporting the handle from t

An ergonomically superior endoscopic suction-irrigation instrument for surgery comprises a telescope sheath connected at an adjustable angle, preferably approximately 30°, to a vertically elongated handle having thumb-operated irrigation and suction valves and a hook for supporting the handle from the surgeon's hand when the surgeon's grip on the handle is loosened. The instrument is especially suited for sinus surgery.

대표청구항 ▼

An ergonomically superior endoscopic suction-irrigation instrument for surgery comprises a telescope sheath connected at an adjustable angle, preferably approximately 30°, to a vertically elongated handle having thumb-operated irrigation and suction valves and a hook for supporting the handle from t

An ergonomically superior endoscopic suction-irrigation instrument for surgery comprises a telescope sheath connected at an adjustable angle, preferably approximately 30°, to a vertically elongated handle having thumb-operated irrigation and suction valves and a hook for supporting the handle from the surgeon's hand when the surgeon's grip on the handle is loosened. The instrument is especially suited for sinus surgery. ng a preceding-process pallet loaded with a machined workpiece thereon with a next-process pallet loaded with an unmachined workpiece thereon, wherein a working space is provided between said machine body and said pallet changer, said pallet changer comprising a first arm member, a second arm member and a speed-increasing mechanism provided between said first arm member and said second arm member for advancing and retreating said second arm member by making use of horizontal advance-and-retreat motions of the second arm member relative to said first arm member, and said pallet changer further including means for vertically moving the second arm member relative to said first arm member. 7. A machine tool comprising: a pallet changer disposed in front of a machine body for automatically changing a preceding-process pallet loaded with a machined workpiece thereon with a next-process pallet loaded with an unmachined workpiece thereon, wherein a working space is provided between said machine body and said pallet changer, said pallet changer comprises a first arm member, a second arm member and a speed-increasing mechanism provided between said first arm member and said second arm member, said speed-increasing mechanism including a driving-side chain mechanism and a driven-side chain mechanism, each of said driving-side chain mechanism and said driven-side chain mechanism have an endless chain on a pair of sprockets disposed so as to be spaced from each other in an advance-and-retreat direction, said sprockets on one side of the driving-side and driven-side chain mechanisms being vertically coaxial and rotationally connected to each other perpendicular to a direction of elongation of at least one of said first arm member and said second arm member. 4, 20010500, Coory, 206/222 arrives.