Abstract: An X-ray film development device performs development, fixing, rinsing, and drying processes while transporting an exposed X-ray film. A rinsing unit is provided with a light source, which illuminates the X-ray film during transportation, and a reading unit, which receives the passing light and reads an image recorded on the X-ray film. The image signal from the reading unit is processed by a display device (CRT, LCD, etc.), and the film image can be provided to the doctor or patient without waiting until the film dries.

Abstract: A developed film is illuminated to project its image onto a rear projection screen. A transparent case with a clear liquid filled therein is arranged, and the film is accommodated in the case. A writable transparent or translucent sheet is arranged over a front side of the rear projection screen.

Abstract: A film-made sheath is formed of a transparent film and a shrinkable film. These transparent and shrinkable films are in a contiguous relation and are adhered or fusion-bonded at edges thereof into sheath-shaped configurations. The transparent and shrinkable films may be dimensioned such that the sheath can accommodate therein a mouth insert portion of an intraoral camera. The mouth insert portion of the intraoral camera can be covered with the film-made sheath by inserting the mouth insert portion into the sheath such that a light-receiving portion of the intraoral camera is located on a side of the transparent film, and then heating the shrinkable film.

Abstract: A device is provided for filing a developed X-ray film such as a developed dental X-ray film. The filing device is formed of a transparent sheet. The transparent sheet has scale marks applied thereon, and is arranged such that a particular site, such as a tooth, in the X-ray film can be diagnosed using the scale marks. The filing device makes it possible to determine with precision and ease the size, relative position or the like of the particular site without removal of the X-ray film from the filing device.

Abstract: A developed film is illuminated to project its image onto a rear projection screen. A transparent case with a clear liquid filled therein is arranged, and the film is accommodated in the case. A writable transparent or translucent sheet is arranged over a front side of the rear projection screen.

Abstract: A developing processor is constructed of a chassis block 300 with a developer reservoir, a fixer reservoir and a washing solution reservoir arranged on a chassis, a base plate block 200 detachably mounted on the chassis block 300, and a roller block 100 detachably mounted on the base plate block 200. The roller block 100 is constructed of roller pairs which form processing spaces for development, fixing and washing, respectively. Parts, each of which is likely to develop a trouble or is not very likely to develop a trouble, are all fixed on a base plate 201 of the base block 200. Included as these parts are a control box 210, a drive motor for driving the rollers, a warm-air fan 213, a pump motor, and the like. Upon development of a trouble, the base plate block 200 is replaced.

Abstract: An enclosure useful in enclosing a dental X-ray film pack upon taking an X-ray picture of a tooth is formed of an enclosing portion and a holding portion extending from the enclosing portion. To permit enclosure of a dental X-ray film pack provided with a bite block, the enclosing portion is formed of two separate sheets. After inserting the bite block into a basal part of the holding portion, the pack is covered between the two sheets and the two sheets are then fusion-bonded to seal the pack within the enclosing portion. The holding portion has a length sufficient to extend out of an oral cavity when the enclosing portion is inserted in the oral cavity. After taking the X-ray picture of the tooth, the dentist holds the enclosure at the holding portion, takes the enclosing portion out of the cavity, and then tears off the enclosure from a side of the holding portion, so that the dental X-ray film pack falls out of the enclosure.

Abstract: When a ring with an exposed dental X-ray film mounted thereon is thrown into a first tank filled with a processing solution, the ring is scooped into a space of a ring-holding portion of a rotating arm through a first opening. As the ring-holding portion is moving in the tank, the ring is pushed by a tilted bottom portion while being held within the space by a release preventing wall and a door so that the ring is also moving together with the ring-holding portion. When the ring-holding portion has fully moved out of the tank, the door is opened and the ring is released from the space into an adjacent tank through a second opening.

Abstract: A film holder is described for use in a dental X-ray film developing machine. The film holder has a stem portion, an engagement portion formed at one end of the stem portion a film-mounting portion composed of two support portions formed at the other end of the stem portion and extending out in an opposing relationship from the stem portion. Plural film-mounting projections are provided at different levels in the direction of the thickness of the film holder in the proximity of each of free end portions and base portions of the respective support portions, whereby a film can be placed between the support portions while being held between the projections. Also described is a film mounting stage for mounting a film on the film holder.

Abstract: A dental X-ray film developing machine is described. The machine has a cylindrical housing, a motor fixed on the housing, an arm for being driven by the motor, and a film holder for being brought into detachable engagement with the arm whereby development processing of a film mounted on the film holder is conducted while the film holder makes a full turn within the housing. Plural tanks, including a tank containing a developer and another tank containing a final processing solution such as water, are removably arranged along a peripheral wall of the housing. A film-holder-inserting portion is located before the developer-containing tank relative to the turning direction of the arm so that the film holder with the film mounted thereon can be positioned at a point where the film holder can be brought into engagement with the arm which is being driven. A device for detaching the film holder from the arm is provided after the final-processing-solution-containing tank relative to the turning direction of the arm.

Abstract: A mark-bearing support for a dental X-ray film pack is disclosed. The support has an X-ray pervious bite portion to be clenched between upper and lower teeth and a support portion for temporarily holding the dental X-ray film pack thereon. The support portion is provided with a mark formed of an X-ray impervious material such as a lead-containing ink.

Abstract: The specification describes an information-bearing sheet suitable for use with an X-ray film. The sheet is formed of a mark-bearing portion, which is to be applied to the X-ray film and exposed to X-ray upon taking an X-ray picture of an object, and a data-filling portion bearing, in a form printed thereon, the same mark as the mark-bearing portion, containing at least one blank space adapted to fill identification data of the object and provided in combination with the mark-bearing portion. The mark may be printed with a lead-containing ink on the mark-bearing portion. When the X-ray film is exposed to X-ray with the mark-bearing portion applied thereon, the mark is automatically imprinted on the X-ray film. When taking the X-ray picture, the data-filling portion is filled with appropriate data on the object and is applied to a bag for storing or filing the X-ray picture. In this manner, the X-ray picture can be easily matched with its corresponding object without failure.

Abstract: A container for a dental X-ray film package which can prevent attachment of saliva of a patient to the dental X-ray film package contained therein. The container comprises a containing element formed from a flexible sheet for containing a dental X-ray film package therein, and a gripping element formed from at least one flexible sheet and connected to the containing element. The gripping element extends outwardly of an oral cavity of a patient when the containing element is inserted in the oral cavity. When an X-ray photograph is to be taken, a dental X-ray film package is inserted into the containing element and then the containing element is placed at a suitable position for photographing of a tooth. After X-ray photographing, the gripping element is gripped to take out the containing element from the oral cavity and pulls or tears off the gripping element in the opposite directions to open the containing element to take out the film package from the containing element.

Abstract: A dental X-ray film developing machine is described. The machine has plural compartments arranged along a predetermined travelling path of a dental X-ray film to be developed. A film-mounting member is provided to mount the film detachably thereon. The film-mounting member is supported pivotally and releasably by a support. The plural compartments and support are displaceable relative to each other so as to allow the film to travel successively through the compartments.

Abstract: A dental X-ray film pack includes a dental X-ray film, an inner packaging member covering both sides of the dental X-ray film and an outer packaging member having a peeling piece at a part thereof and enclosing the dental X-ray film and inner packaging member. The dental X-ray film pack is provided with a means for uniting together a section of the inner packaging member, said section covering one side of the dental X-ray film on the side of the peeling piece, and the peeling piece.

Abstract: A space is formed in an automatic film developing machine by side walls, a bottom wall and two pairs of film feed rollers. One of the two pairs of film feed rollers is arranged between front end portions of the side walls and the other pair of the film feed rollers is disposed between rear end portions of the side walls. The machine is equipped with a means for feeding a film processing solution to the space. At least one discharge pipe is also provided to discharge the film processing solution from the space. The discharge pipe communicates the space to a point outside the space. The upper end of the discharge pipe is positioned at a desired height higher than the nips of the paired film feed rollers whereas the lower end of the discharge pipe is in communication with a reservoir for the film processing solution.