摘要:
A medical panoramic radiographing device comprises in combination a mode selector which is used to select the panoramic radiographing mode, jaw joint radiographing mode and/or otolaryngological region radiographing mode, an X-ray irradiation timing determination means which is used to determine the X-ray irradiation timing appropriate to the rotation positon of a rotary arm in the sselected radiographing mode, and an X-ray film movement pattern determinator which is used to determine movement patterns regarding the movement timing, speed, etc. of an X-ray film depending on the selected radiographing mode. With this device, the X-ray irradiation timing values or the X-ray film movement timing values suited for various radiographing modes are set automatically to ensure systematic selection of various radiographing modes.
摘要:
A dental panoramic/cephalo X-ray photographing device being characterized in that an X-ray generator can be horizontally rotated by an electric drive means so that the X-ray irradiation axis of the X-ray generator is directed to a panoramic photographing cassette or a cephalo photographing cassette.With this device, selection between the panoramic and cephalo photographing modes can be done far quicker and more accurately than devices of the prior art.
摘要:
A radiographic apparatus for photographing the entire jaws designed to make a tomogram of a curved plane approximate to a dental arch by the locus of center of rotation of the X-ray beam projected from an X-ray source onto an X-ray film holder describing an approximately V-shaped envelope which forms an apex on an approximate medial line and recedes from the apex toward the left and right of the approximate medial line by moving a rotary arm around a patient, the arm having the X-ray source at one end and the X-ray film holder at the other end thereof, wherein the apparatus comprises a means for changing straight-line distance on the approximate medial line between the apex and receding point of limit of the envelope and a means for indicating the distance of shift thus changed or a means for automatically moving the indication means a distance equal to the distance of shift.
摘要:
A tubular burner includes a mixing tube and a flame hole member having a plurality of flame holes. The flame hole member is made of a sheet metal plate and has: a circular disk part having the plurality of flame holes formed therein; and a fitting tubular member which is elongated backward from a periphery of the circular disk part and is adapted to be fitted into an inner circumference at the front end region of the mixing tube. A clearance-generating section is formed at a front of the fitting tubular member so as to generate an annular clearance between the clearance-generating section and the inner circumference at the front end region of the mixing tube. A plurality of flame retention holes are formed in the clearance-generating section at a circumferential distance from one another.
摘要:
A tubular burner has: a mixing tube inclusive of an inlet port, a venturi section, and a tapered tube section; and a flame hole member having a plurality of flame holes and being adapted to be fitted into a front end region of the mixing tube. A flame hole member has a front plate and a rear plate, both of sheet metal make. The front plate has a first flame hole in the central portion of the front plate, and a plurality of second flame holes located around a periphery of the first flame hole. The rear plate has a first ventilation hole in the center thereof so as to lie opposite to the first flame hole, and a plurality of second ventilation holes of smaller diameter than the first ventilation hole.
摘要:
A check ring is mounted around a shaft of a screw tip that is mounted on a front part of a screw, whereby a resin is prevented from flowing back from ahead of a conical portion toward the screw. Projections are provided on a front end surface of the check ring. In measurement, a rear end surface of the conical portion of the screw tip and respective end surfaces of the projections are brought into contact with one another, whereby gaps are created between the screw tip and respective root surfaces of teeth of the check ring. By doing this, resin passages can be secured around contact surfaces between the rear end surface of the screw tip and the respective end surfaces of the projections of the check ring.
摘要:
A screw tip is provided in front of a screw with a shaft interposed therebetween, and a check ring is fitted around the shaft. The check ring is separated from a front end portion of the screw when the screw is rotated in a forward direction. The check ring contacts the front end portion of the screw when the screw is advanced. A front end surface of the check ring is provided with teeth, and a rear end surface of the screw tip is provided with grooves with which the respective teeth are engaged. Respective one side surfaces of the grooves and the teeth which are pressed against each other when the screw is rotated in the forward direction are formed vertical to the front end surface of the check ring, and side surfaces thereof located on the reverse sides of the above respective one side surfaces are inclined.
摘要:
The invention is directed to a method of prophylactically or therapeutically treating an animal for an ocular-related disorder. The method comprises administering to an eye of the animal an expression vector comprising a nucleic acid sequence encoding an adenoviral-responsive gene product. The expression vector transduces a host cell and the nucleic acid sequence is expressed to produce the adenoviral-responsive gene product to treat prophylactically or therapeutically the ocular-related disorder. The invention also provides a method of reducing or inhibiting angiogenesis or photoreceptor cell loss in an eye. The method comprises administering to the eye an expression vector comprising a nucleic acid sequence encoding an adenoviral-responsive gene product. The expression vector transduces a host cell and the nucleic acid sequence is expressed to produce the adenoviral-responsive gene product thereby reducing or inhibiting angiogenesis or photoreceptor cell loss in the eye.
摘要:
A grommet for a door is provided with a door mounting base portion, an automobile mounting base portion and a bellows portion. The door mounting portion includes a front side portion, from which the bellows portion extends, a passenger compartment side portion, which includes a wire harness through-hole, and a wire harness protecting portion extending diagonally between the front side portion and the passenger compartment side portion. The vertical width of the grommet is made short to reduce an area of the grommet that is exposed to the exterior and that is overlapped with the weather strip. Due to the structure described above, the grommet can be efficiently mounted to the door body, and waterproofness can be ensured.
摘要:
The present invention provides a panoramic imaging apparatus capable of obtaining a clear tomographic image even when the rotation speed of a swivel member changes. The clock for driving an FFT CCD device in accordance with the TDI method is set on the basis of the angular speed .omega. of the arm detected by a tachogenerator and a function value f (.theta.) which responds to the rotation angle .theta. of the swivel member detected by an angle detector and used to determine a tomographic orbit. The angle detector is provided with a cam having a shape having been set in accordance with the relationship between the rotation angle .theta. and the film feeding speed at the time of performing X-ray panoramic imaging by using photographic films. The signal of the angular speed .omega. and the signal of the function value f (.theta.) corresponding to the angle .theta. are added by an analog multiplier, and subjected to frequency modulation by a V/F converter to create a TDI clock.