Abstract: [Task] A task is to improve the flexibility for setting a muffler and making a V-type engine compact. [Solution] A V-type engine (1) includes an engine body (3) including a crankcase (7) configured to rotatably support a crankshaft (11), and a first and second cylinder banks (8, 9) extending from the crankcase (7), a first exhaust pipe (41) connected to the first cylinder bank (8); a second exhaust pipe (42) connected to the second cylinder bank (9); a merging pipe connected to the first and second exhaust pipes (41, 42); a first catalyst (32a) accommodated in the first exhaust pipe (41); a second catalyst (32b) accommodated in the second exhaust pipe (42); and a muffler (33) detachably connected to the merging pipe, wherein the first catalyst (32a) is arranged along an outer surface of the first cylinder bank (8), and the second catalyst (32b) is arranged along an outer surface of the second cylinder bank (9).

Abstract: A needle assembly for use with a hypodermic syringe having a snout, which comprises a needle, a needle holder having a flare bore section for coupling with the snout of the syringe and a hollow pipe provided in the flared bore section of the needle holder. The pipe is shaped and sized to be inserted in a snout hole when the needle holder couples with the snout through the flared bore section formed therein. The pipe has a passage which communicates with a needle bore through a narrow hole formed in the needle holder. A filter may be provided in the needle holder. The quantity of liquid medicine left in the needle holder and the snout hole of the syringe after the injection is made extremely small. When the filter is provided in the needle holder, impurities can be removed.

Abstract: An ultrafiltration unit for the separation of the colloidal or very fine solid material by filtration through microporous or semipermeable mediums. The unit comprises a filter housing formed by an upper part and a lower part airtightly connected together and a filter internally disposed in the housing. The upper part of the housing has an inlet pipe at its top and a check valve is provided in the inlet pipe. A liquid sample is forced in the upper part of the housing together with air through the inlet pipe, pressed by the pressure of the air and then filtered. An escaping of the air can be blocked by the check valve provided in the inlet pipe of the upper part of the housing.

Abstract: A medical needle assembly for use in or with a syringe or a drip chamber liquid administration system, wherein a hollow, elongated member is loosely fitted to a flexible tube and is engageable with a needle holder element securely fitted to an injection needle so that the needle can be easily and correctly inserted into a patient's vein or the like by fitting the elongated member to the needle holder element and moving the elongated member together with the needle and the needle holder element. Upon completion of the insertion of the needle into the vein, the elongated member is detached from the needle holder element, which is thereafter secured to the patient's body skin by means of, for example, an adhesive tape.

Abstract: A medical liquid dispensing device such as a medical administering dripset or a syringe having a liquid conducting tube comprising at least one partition element forming in the liquid conducting tube, at least two liquid passageways longitudinally separate from each other across the partition element, and at least one elongated microporous tubular element which extends in part in at least one of the two liquid passageways in the liquid conducting tube from the partition element. The tubular element has at least one longitudinal passageway closed in at least one of the liquid passageways in the liquid conducting tube. Thus, the microporous tubular element serves as a microporous filter medium for collecting on its inner and/or outer peripheral surfaces the solid particles contained in a liquid medicament or transfusion blood passed through the microporous tubular element.

Abstract: A cleaner for removing chalk powder from a chalk eraser, comprising an upper case having an aperture through which the chalk eraser is inserted, a lower case removably connected with the upper case for collecting chalk powder and a cleaning plate interposed between the upper and lower cases. The cleaning plate has a plurality of ridges and slots against which the chalk eraser is struck. The upper case has a blocking member closing its aperture and which can be spread open to insert a chalk eraser therethrough. Chalk powder falls into the lower case through the slots and accumulates in the lower case.

Abstract: A medical administering needle assembly comprising a generally tubular body portion having an annular end wall formed with projections slightly protruding into the fluid conducting passageway in the body portion and two filter elements having different densities and spaced apart from the annular end wall by means of the projections.

Abstract: An apparatus for forming medical needle holder assembly employing a generally tubular needle holder, a filter element constituted by a wad of a lengthy filament yarn of snythetic resin and a generally tubular filter retainer adapted to be received in the needle holder with the filter element fitted in the needle holder.

Abstract: A needle holder device for use in a medical administering injector such as a syringe or dripset, comprising a generally tubular member formed with a liquid conducting passageway consisting of two axially spaced cylindrical bore portions and a frusto-conical bore portion between the cylindrical bore portions, and a filter assembly held in position within one of the cylindrical bore portions and located in proximity to the frusto-conical bore portion, the filter assembly including at least one filter element and filter retaining means formed with open spaces providing communication between the frusto-conical bore portion through the filter element and one of the cylindrical bore portions, the retaining means including at least one conical or otherwise tapered axial projection extending into at least one of the cylindrical bore portions.

Abstract: A medical needle holder assembly comprising a generally tubular needle holder, a filter element constituted by a wad of a lengthy filament yarn of synthetic resin and a generally tubular filter retainer adapted to be received in the needle holder with the filter element fitted in the needle holder.

Abstract: Apparatus for loading a medical needle holder with a filter element consisting of a filament yarn, comprising a transport tube having yarn inlet and outlet ends, a yarn feed means for feeding a continuous filament yarn into the transport tube through the yarn inlet end thereof, yarn measuring and cutting means operative to cut the conveyed yarn in a predetermined length, needle holder retaining means for positioning a needle holder at the yarn outlet end of the transport tube and yarn transfer means for moving the cut segment of the yarn into a predetermined transitive position and from the transitive position into the needle holder.