JP3614925B2 - Dental X-ray film simple developer and film hanger for simple developer - Google Patents

Description

[0001]
[Industrial application fields]
The present invention provides a dental practice, in which relates intraoperative, simple developing device for the extemporaneous developing the captured X-ray film immediately after surgery, and the film hanger over for use in the simple development unit.
[0002]
[Prior art]
In recent years, X-rays are used very frequently in dental practice, and X-ray imaging is performed on a daily basis. Various methods are also used for image diagnosis, image processing, and X-ray film development processing.
[0003]
Recently, with the increase in the frequency of X-ray photography, the use of an automatic developing device has become common, which has helped improve the efficiency of dental care. However, the development process using an automatic developing device associated with general X-ray photography is usually very convenient and efficient, but the automatic development automatically and continuously processes each stage of development, fixing, washing and drying. A certain processing time is required, and the development processing time cannot be intentionally shortened.
[0004]
The standard dental X-ray film most frequently used in daily dental practice is a 3 cm x 4 cm small-sized film, but when this is automatically developed, it varies depending on the model, but from developing to drying is approximately 3-5. It takes a minute.
[0005]
In dental practice, X-rays are taken in the middle of treatment and surgery, and the results are confirmed on the film before moving to the next step. Therefore, X-rays during and immediately after surgery are necessary and effective for clinical dentists. Means. Therefore, when it is desired to confirm the result of the X-ray inspection as soon as possible, immediate development processing other than automatic development is required.
[0006]
At present, there are various types of immediate development processing methods that are widely used, and an instant development method is often used. This is done using a special film packed in a plastic bag. After shooting, the developer fixer sucked with a syringe is injected into the plastic bag, or the developer fixer in a container is injected under pressure. After the development and fixing time has elapsed, the plastic pack is broken, the film is taken out, washed, and dried after diagnosis.
[0007]
This method has an advantage that it can be processed in a short time of 30 seconds as a developing and fixing time, does not require a dark room or a dark box, and can perform a bright room process. On the other hand, unpleasant accidents such as needle punctures, scratches on the film surface due to needles, contamination of clothes and fixtures due to splashes of chemicals that tend to occur when removing from the pack, contamination of fingers and skin, and rashes are often encountered. It is where you are experienced.
[0008]
[Problems to be solved by the invention]
Conventionally, hand development (manual development), which is generally performed, is the simplest method without the need for special equipment, but can cause unpleasant accidents such as contamination with chemicals similar to the above-mentioned instant development. It is.
[0009]
In particular, in manual development, it is necessary to hold the film with tweezers or clips in order to immerse the film in the chemical solution. Instrumental wounds not only interfere with accurate diagnosis, but also significantly impair the value of medical materials.
[0010]
The present invention has developed a simple developing device that solves the drawbacks and problems of the conventional manual developing method as a simple and rapid X-ray film developing method, and makes it safer and more reliable. It is to provide.
[0011]
[Means for Solving the Problems]
The invention according to claim 1 of the present application includes a film hanger for attaching a photographed X-ray film, a plurality of tanks for storing liquid for developing, fixing, and washing the X-ray film attached to the film hanger, A dental X-ray film simple developing device comprising a tray serving as a tray for the tank, and a film hanger having a substantially rectangular frame in which the vertical and horizontal inner dimensions are slightly smaller than the vertical and horizontal dimensions of the X-ray film, It consists of a plurality of holding projections arranged on the front surface of the frame so as to surround the X-ray film, and a hook-shaped handle that is provided above the frame and is sufficiently longer than the width of the frame. A narrower portion than the head is formed on the inside of the head, and the dimensions of the square formed on the inside of the holding portions of the plurality of holding projections are substantially equal to the dimensions of the X-ray film. To.
[0012]
The second aspect of the dental X-ray film simple developing device according to the first aspect of the present invention limits the form of a plurality of tanks, the tank is a substantially rectangular box shape, and the lateral width is the length of the handle portion of the film hanger. A pair of hooks (notch portions) having a certain length and depth for receiving the handle portion are formed at the upper end portion which is shorter than the width direction and which opposes in the lateral width direction.
[0013]
The invention according to claim 3 is a film hanger for a simple developing device for use in the simple developing device of claim 1 described above, and has a substantially rectangular shape in which the vertical and horizontal inner dimensions are slightly smaller than the vertical and horizontal dimensions of the X-ray film. A frame, a plurality of holding projections arranged so as to surround the X-ray film attached to the front surface of the frame according to the dimensions of the X-ray film, and a bowl-shaped handle provided above the frame and sufficiently longer than the horizontal width of the frame The holding projection is formed with a narrower portion on the inside of the head for preventing X-ray film detachment, and the dimension of the quadrangle formed on the inner side of the plurality of holding projections is X It is characterized by being approximately equal to the dimension of the line film.
[0014]
According to a fourth aspect of the present invention, in the film hanger according to the third aspect, the case where a hook is provided at one end of the handle portion is limited.
[0016]
【Example】
1 to 4 show an example of the usage state, the form of a film hanger, the form of a tank such as a developing tank, and the form of a tray, respectively, in an embodiment of the simple developing device of the present invention.
[0017]
The configuration and characteristics of the simple developing device and each component in the present embodiment are as follows.
[0018]
(1) Film hanger (see Fig. 2)
The film hanger 1 in this embodiment is made of a synthetic resin, and is composed of a synthetic resin frame 2, a film holding part for holding the film, and a bowl-like handle part 4. One end of the handle portion 4 is provided with a hook 5 (which can be hooked and suspended) for use in drying or the like.
[0019]
(1) Film holding part The film holding part in this embodiment is formed with 6 to 8 holding projections 3 having a head 3a and a sandwiching part 3b in the form of a combination of abacus balls, between the upper and lower taper parts. The film F can be gripped with some clearance by the sandwiching portion 3b (see FIG. 1).
[0020]
The standard dental X-ray film F is a thin flat plate made of a synthetic resin, rich in elasticity, and standardized to 3 cm × 4 cm. The operation of attaching the film F to the film holding part is as follows. First, the photographed standard dental X-ray film F is taken out of the packaging, and the film F is placed in the center of the frame 2 surrounded by the holding projections 3 of the film holding part. When the film F is lightly pressed with clean fingers, the film F is guided by the taper of the holding projection 3 and pushed into the pinching portion 3b, and is pinched by the pinching portion 3b by the elasticity of the film F.
[0021]
The film F once sandwiched between the sandwiching portions 3b is not detached from the holding portion unless it is pushed out from the back side of the frame body 2 in the direction opposite to the mounting direction.
[0022]
As described above, this mechanism uses the elasticity and bending restoring force of the standard dental X-ray film F itself. Therefore, unlike other film holders that are pinched with tweezers or pinched with clips or forceps, the film is scratched or the unevenness of development that occurs because the pinched part does not touch the chemical solution. There is no dropout in the tank.
[0023]
The dark room and dark box are very dark, so there are many groping operations, and it is easy to install the film as in this device, and the use of a device that is easy to operate and reliable makes development processing easier. is there.
[0024]
(2) The hook-like handle portion 4 provided on the upper portion of the handle portion frame body 2 is longer at both ends than the both ends of the frame body 2 and longer than the width of each of the developing tank, the fixing tank, and the washing tank ( (See FIG. 1). Therefore, during the development process, the film hanger 1 is fixed in a stable state so as to straddle the tank 6 with the film holding part at the center in a predetermined position of each tank 6, and the extended ends of both ends of the handle part 4 are In a state where it protrudes from the upper end of the tank 6, it stabilizes in the center on the tank 6.
[0025]
At this time, the film holding part is suspended in the developing tank, the fixing tank, and the washing tank 6, and only the film holding part is immersed in the chemical solution, and the chemical solution adheres to the handle portion 4. Absent. Therefore, when the film hanger 1 is sequentially transferred to each of the developing tank 6a, the fixing tank 6b, and the washing tank 6c (see FIG. 4B), the long handle-shaped handle portion 4 is used. Therefore, it is possible to prevent the chemical solution from adhering to the hand, and the hand is hardly soiled during the developing process. Alternatively, when the film is transferred from the dark room to the clinic or the like, or between the assistant and the dentist, the hand can be handed with the extended portions at both ends of the handle portion 4, so that the hand is clean. Maintained.
[0026]
Further, during the development and fixing operations, the end portion is held, and the rotational movement around the long axis of the handle portion 4 is made very small, the chemical solution in the tank 6 is stirred, the reaction is promoted, and uneven development and fixing are performed. Unevenness can be prevented.
[0027]
(2) Developer tank, fixing tank and washing tank (see Fig. 3)
In this embodiment, each tank 6 made of synthetic resin has a substantially rectangular box shape having the same form, and the lateral width is shorter than the length of both ends of the handle part 4, and the film holding part is suspended from the center of the tank 6. . In the center of the upper end portion of the tank 6, a lock 7 (notch portion) having a certain length and depth for fixing the heel of the handle portion 4 in a stable state is formed. The hook 7 has a length more than a multiple of the required thickness of the film hanger 1 because a plurality of films are processed simultaneously. By this squeegee 7, the film hanger 1 is correctly guided to the center of the tank 6 during the development processing operation, and a stable position is always maintained. The sledge 7 is also useful for operation in a dark room or dark box. It becomes.
[0028]
In the figure, reference numeral 10 denotes a collar portion provided on the upper portion of the tank 6, and 11 denotes a scale line provided on the inner surface of the tank 6.
[0029]
(3) Tray (See Fig. 4)
The tray 8 serves as a tray that catches the leakage of liquid in the form of dripping, scattering, and overflowing of chemicals during the development process and in preparation, and prevents contamination around the work site.
[0030]
In the present embodiment, the tray 8 has a structure in which a necessary number of guide protrusions 9 are provided on the upper surface of a bottom plate 8a of a general tray made of synthetic resin so as to surround a portion where the bottom of each tank 6 is located. It is. Each tank 6 is housed in a position surrounded by the guide protrusions 9, and the positions and intervals of the tanks 6 (6a, 6b, 6c) can be kept constant. As described above, the constant position and interval of the tank 6 facilitate the operation in the dark room or dark box under extremely dark conditions.
[0031]
The guide protrusion 9 has a tapered truncated cone shape and facilitates cleaning such as brush cleaning. Further, the guide protrusion 9 stabilizes the steep inclination and the like such as carrying and moving, and prevents the tank 6 from slipping or overturning.
[0032]
The above components (1) to (3) can be combined as a set of tools and used as a simple developing device. FIG. 1 shows a film hanger 1 with a dental standard X-ray film F attached thereto, a developing tank 6a, etc. 2 shows a state of being immersed in a liquid (developer, fixing solution, water for washing, etc.). As shown in the figure, the film holding part hangs down and is immersed in the liquid in the tank 6 with both ends of the handle 4 of the film hanger 1 spanned between the hooks 7 of the tank 6. . The tank 6 is placed on the bottom plate 9 of the tray 8, and the horizontal position is fixed by the guide protrusion 9.
[0033]
【The invention's effect】
(1) The simple developing device of the present invention does not require a special device such as an automatic developing device in developing a dental X-ray film, and enables an immediate developing process, and a conventional manual. Safe and reliable development processing is possible without contamination and other unpleasant accidents due to the scattering of chemicals during development and instant development.
[0034]
(2) According to the simple developing device and film hanger of the present invention, the X-ray film can be easily mounted by utilizing the elasticity and restoring force of the film itself, and tweezers as in the case of conventional manual development. The X-ray film is not scratched or unevenly developed by a clip or clip, and is not likely to be dropped into the chemical bath. Therefore, accurate diagnosis is possible, and the value as a medical document is not impaired. In addition, it is easy to perform a groping operation in a dark room or a dark box.
[0035]
(3) According to the simple developing device and the film hanger of the present invention, the film holding part is suspended in each tank such as a developing tank, and only the film holding part is immersed in the chemical solution, The chemical solution will not adhere. Therefore, when the film hanger is sequentially transferred to each tank, the film hanger can be transferred with a handle portion to which no chemical solution adheres, and the hands are hardly soiled during the developing process. Also, when transferring the film from the dark room to the doctor's office, etc. or between the assistant and the dentist, the hand can be handed with the extended parts at both ends of the handle so that the hand is kept clean. Is done.
[Brief description of the drawings]
FIG. 1 is a front view (partially cutaway cross-sectional view) showing a use state in an embodiment of a simple developing device of the present invention.
FIGS. 2A and 2B show an embodiment of a film hanger according to claims 2 and 3, wherein FIG. 2A is a front view, FIG. 2B is a plan view, and FIG. 2C is an enlarged side view of a holding projection portion; .
FIG. 3 shows one tank used in the embodiment of FIG. 1, (a) is a plan view, (b) is a sectional view taken along line BB, and (c) is a sectional view taken along line CC. is there.
4A and 4B show an example of a tray that can be used with the present invention, in which FIG. 4A is a left side view showing a state in which a tank such as a developing tank is installed on the tray, FIG. c) is a plan view of the tray only.
[Explanation of symbols]
F ... X-ray film,
DESCRIPTION OF SYMBOLS 1 ... Film hanger, 2 ... Frame body, 3 ... Holding protrusion, 3a ... Head, 3b ... Nipping part, 4 ... Handle part, 5 ... Hook, 6 ... Tank, 6a ... Developing tank, 6b ... Fixing tank, 6c ... Washing basin, 7 ... Claw, 8 ... Tray, 8a ... Bottom plate, 9 ... Guide projection, 10 ... Brim, 11 ... Scale line

Claims (4)

A film hanger for attaching a photographed X-ray film, a plurality of tanks for storing liquid for developing, fixing and washing the X-ray film attached to the film hanger, and a tray serving as a tray for the tank The film hanger includes a substantially rectangular frame whose inner and outer dimensions are slightly smaller than the vertical and horizontal dimensions of the X-ray film, and an X-ray film attached to the front surface of the frame according to the size of the X-ray film. A plurality of holding projections disposed so as to surround the frame, and a hook-like handle portion provided above the frame and sufficiently longer than the lateral width of the frame. The holding projection includes a head for preventing X-ray film detachment. A narrow portion that is narrower than the head is formed on the inside, and the size of the quadrilateral formed on the inside of the plurality of holding projections is substantially equal to the size of the X-ray film. Dental X-ray film simple developing device for the symptoms. The tank is a substantially rectangular box-shaped tank, and has a pair of hooks of a certain length and depth for receiving the handle part at an upper end part which is shorter in width than the handle part and opposed in the width direction. The dental X-ray film simple developing device according to claim 1 formed. A plurality of substantially rectangular frames whose vertical and horizontal inner dimensions are slightly smaller than the vertical and horizontal dimensions of the X-ray film and a plurality of X-ray films that are attached to the front surface of the frame according to the dimensions of the X-ray film are arranged. A holding projection and a hook-shaped handle provided above the frame and sufficiently longer than the lateral width of the frame. The holding projection is narrower than the head on the inside of the head for preventing X-ray film detachment. A film hanger for a simple developing device, characterized in that a clip is formed, and a rectangular dimension formed inside the clamps of the plurality of holding projections is substantially equal to the dimension of the X-ray film. The film hanger for a simple developing device according to claim 3, wherein a hook is provided at one end of the handle portion.

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