JPH08292542A - Dental x-ray film simple developing device, film hanger and tray for simple developing device - Google Patents

Abstract

PURPOSE: To provide a simple developing device where developing processing is more safely and surely made by solving problems in a manual developing method as a convenient and quick developing processing method of dental X-ray film. CONSTITUTION: X-ray film F is attached at the part of the frame body 2 of the film hanger 1, and is successively immersed in the respective tanks 6 of a developing tank, a fixing tank, a water-washing tank or the like. A holding protrusion 3 is provided at the part of the frame body 2 so as to surround the X-ray film F, and the X-ray film F is fitted in the inside by using the elasticity and the restoring force of the X-ray film F itself and is fixed. A lever-like handle part 4 is provided on the upper side of the frame body 2. The film hanger 1 is moved from the tank 6 to the other tank 6 by holding the handle part 4, and in a state where the X-ray film F is immersed in a medicinal liquid, the handle part is housed in a hooked-in part 7 provided at the tank 6 and is stablized. A guide protrusion 9 is provided at a tray 8 placing the tank 6, so that the positioning and fixing of the tank 6 are performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is used in dental practice.
The present invention relates to a simple developing device for immediately developing an X-ray film photographed during and immediately after the operation, a film hanger, and a tray for use in the simple developing device.

[0002]

2. Description of the Related Art In recent years, X-rays are extremely frequently used in dental treatment, and X-rays are taken on a daily basis. There are various methods for image diagnosis, image processing, and X-ray film development processing. It's being used.

Recently, with the increase in the frequency of X-ray photography, the use of automatic developing devices has become common, which is useful for improving the efficiency of dental treatment. However, in general, the development process by an automatic developing device that accompanies general X-ray photography is extremely convenient and efficient, while automatic development automatically and continuously processes each stage of development, fixing, washing, and drying. It requires a certain processing time and cannot intentionally reduce the development processing time.

The standard dental X-ray film most often used in daily dental practice is a small size film of 3 cm × 4 cm, and when it is automatically developed, it varies depending on the model, but it takes about from developing to drying. It takes 3-5 minutes.

In dentistry, X-rays are taken during treatment and surgery, and the results are checked on a film before proceeding to the next step. Therefore, X-rays during and immediately after surgery are necessary for clinical dentists. It is also an effective means. Therefore, if you want to check the result of X-ray inspection as soon as possible,
Immediate development processing other than automatic development is required.

At present, there are various widely used instant development processing methods, and the one which is often used is the instant development processing method. This uses a special film packed in a vinyl bag, and after shooting, injects the developing and fixing solution sucked with a syringe into the vinyl bag or pressurizes and injects the developing and fixing solution contained in the container, and is designated. After the development and fixing time has elapsed, the vinyl pack is broken, the film is taken out, and after diagnosis, it is washed with water and dried.

This method has a merit that it can be processed in a short time such as 30 seconds for developing and fixing, that a dark room or a dark box is not necessary and that a bright room processing can be carried out. On the other hand, misplaced injection needles, scratches on the film surface due to needles, and contamination of clothes and fixtures due to splashes of chemicals that tend to occur when taking them out from the pack, unpleasant accidents such as finger and skin contamination, and rashes often occur. This is where it is experienced.

[0008]

Conventionally, the hand development (manual development) which is generally performed is the simplest method without requiring a special device, but it is performed by the same chemical solution as the above-mentioned instant development. Unpleasant accidents such as pollution can occur.

In particular, in the case of manual development, it is necessary to hold the film with tweezers or clips in order to immerse the film in a chemical solution. Marks and scratches caused by holding devices not only hinder accurate diagnosis, but also significantly impair their value as medical data.

The present invention provides a simple and quick X-ray film development processing method, which solves the drawbacks and problems of the manual development method that has been conventionally performed, and makes it safer and more reliable. Is developed and provided.

[0011]

The invention according to claim 1 of the present application is for carrying out development, fixing and washing with water of a film hanger for mounting a photographed X-ray film and the X-ray film mounted on the film hanger. It is a dental X-ray film simple developing device consisting of a plurality of tanks for containing liquid and a tray that serves as a tray for these tanks, and the film hanger has the vertical and horizontal inner dimensions slightly smaller than the vertical and horizontal dimensions of the X-ray film. A substantially rectangular frame body, a plurality of holding projections arranged on the front surface of the frame body so as to surround the X-ray film, and a rod-shaped handle portion provided above the frame body and sufficiently longer than the lateral width of the frame body, A head for preventing X-ray film separation is formed on the holding projection and a sandwiching portion thinner than the head is formed inside the head, and the size of the quadrangle formed inside the sandwiching portion of the plurality of holding projections is defined as the dimension of the X-ray film. Wherein the crucible are equal.

According to a second aspect of the present invention, the dental X-ray film simple developing device according to the first aspect is limited in the form of a plurality of tanks, and the tanks are box-shaped with a substantially rectangular shape, and the width is a handle of a film hanger. The length is shorter than the length of the portion, and a pair of notches (cutout portions) having a constant length and depth for receiving the handle portion are formed at the upper end portion facing in the lateral width direction.

The invention according to claim 3 is a film hanger for a simple developing device for use in the simple developing device according to claim 1, wherein the vertical and horizontal inner dimensions are slightly smaller than the vertical and horizontal dimensions of the X-ray film. A substantially rectangular frame body, a plurality of holding projections arranged on the front surface of the frame body so as to surround the X-ray film attached according to the dimensions of the X-ray film, and provided above the frame body and sufficiently longer than the lateral width of the frame body. It is composed of a rod-shaped handle part, and the holding projection has a square portion formed inside the head portion for preventing separation of the X-ray film, which is thinner than the head portion. Is approximately equal to the dimensions of the X-ray film.

According to a fourth aspect, the film hanger according to the third aspect limits the case where a hook is provided at one end of the handle portion.

The invention according to claim 5 is a tray for a simple developing device for use in the simple developing device according to claim 1, wherein a box-shaped developing tank, a fixing tank, and a washing tank having a substantially rectangular plane are provided. It is for mounting and receiving the liquid leaked from each of these tanks, and is characterized in that a plurality of guide projections are provided on the upper surface of the bottom plate of the tray so as to surround the portion where the bottom of each tank is located.

[0016]

1 to 4 show examples of a usage state, a film hanger shape, a tank shape such as a developing tank, and a tray shape in an embodiment of a simple developing device of the present invention. .

The structure and characteristics of the simple developing device and each component in this embodiment are as follows.

(1) Film hanger (see FIG. 2) The film hanger 1 in this embodiment is made of a synthetic resin, and is made of a synthetic resin frame 2 and a film holding portion for holding the film and a swollen handle portion 4. It is composed of At one end of the handle portion 4, a hook 5 (which can be hung by hooking the hook 5 portion) is provided for use for drying or the like.

Film Holding Portion The film holding portion in this embodiment is formed with 6 to 8 holding protrusions 3 each having a head 3a and a sandwiching portion 3b in the form of a combination of abacus balls, and is formed between the upper and lower tapered portions. The film F can be grasped with some space by the sandwiching portion 3b (see FIG. 1).

The standard dental X-ray film F is a thin flat plate made of synthetic resin and is highly elastic, and has a uniform size of 3 cm × 4 cm. The operation of attaching the film F to the film holding portion is performed by first taking the photographed standard dental X-ray film F.
Is removed from the package, the film F is placed in the center of the frame body 2 surrounded by the holding projections 3 of the film holding portion, and the film F is lightly pressed with clean fingers, and the film F is guided by the taper of the holding projections 3. It is pushed into the sandwiching portion 3b and sandwiched by the sandwiching portion 3b by the elasticity of the film F.

The film F once sandwiched by the sandwiching portion 3b.
Cannot be 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.

As described above, this mechanism utilizes the elasticity and the bending restoring force of the standard dental X-ray film F itself. Therefore, unlike other film holding devices that are pinched with tweezers or pinched with clips or forceps, the film is scratched or uneven development occurs because the pinched part does not touch the chemical solution. It does not fall off in the tank.

Since the dark room and the dark box are very dark, there are many operations in a groping state, and it is easy to attach a film like this tool, and the operation is easy and reliable. To do.

The handle portion 4 provided on the upper portion of the frame body 2 has a rod-shaped handle portion 4 whose left and right ends are longer than both ends of the frame body 2 and longer than the width of each tank 6 of a developing tank, a fixing tank, and a washing tank ( (See FIG. 1). Therefore, during the development process, the film hanger 1 is fixed in a predetermined position in each tank 6 in a stable state so as to straddle the tank 6 with the film holding portion as the center, and the extended end portions of both ends of the handle portion 4 are fixed. In a state where it protrudes from the upper end of the tank 6, it stabilizes at the center of the tank 6.

At this time, the film holding portion is in a state of being suspended in each tank 6 of the developing tank, the fixing tank and the washing tank, only the film holding portion is dipped in the chemical liquid, and the chemical liquid adheres to the handle portion 4. There is nothing to do. Therefore, the film hanger 1 is provided in the developing tank 6a, the fixing tank 6b, and the water washing tank 6c (see FIG. 4).
(See (b)), it is possible to hold the long rod-shaped handle part 4 by hand when transferring, so that it is possible to prevent the chemical solution from adhering to the hand, and during the developing process. Almost no hands get dirty. Alternatively, when the film is transferred from the dark room to the doctor's office or when handing between the assistant and the dentist, the hands can be handed by holding the extended portions at both ends of the handle portion 4, so that the hands are kept clean. Maintained.

During the developing and fixing operations, hold the end portion,
The rotational movement of the handle portion 4 about the long axis is made extremely small, the chemical liquid in the tank 6 is stirred, and the reaction can be promoted and uneven development and uneven fixing can be prevented.

(2) Developing tank, fixing tank and water washing tank (see FIG. 3) In this embodiment, each of the synthetic resin tanks 6 has a substantially rectangular box shape with the same shape, and the width is the handle portion 4 The film holding portion is hung at the center of the tank 6 and is shorter than the length of both ends of the. At the center of the upper end of the tank 6, a claw 7 (notch) having a constant length and depth is formed to fix the rod of the handle 4 in a stable state. This claw 7 has a length that is a multiple of the required thickness of the film hanger 1 or more because a plurality of films are simultaneously processed. This claw 7 allows the film hanger 1 to be used during the development processing operation.
Is correctly guided to the center of the tank 6, and a stable position is always maintained, and the clasp 7 is also useful for operation in a dark room or a dark box.

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.

(3) Tray (Refer to FIG. 4) The tray 8 has a role of a tray for receiving leakage of liquid in the form of dropping, splashing, or overflowing of the chemical liquid during the developing process or pre-preparation, and around the working place. Prevent pollution of.

The structure of the tray 8 in the present embodiment is such that the upper surface of the bottom plate 8a of the tray made of synthetic resin and having a general shape is
A required number of guide projections 9 are installed so as to surround the portion where the bottom of each tank 6 is located. Each tank 6 is housed in a position surrounded by the guide projections 9, and each tank 6 (6
It is possible to keep the positions and intervals of (a, 6b, 6c) constant. Thus, the constant position and interval of the tank 6 facilitates the operation in a dark room or a dark box under a very dark condition.

The guide projection 9 has a truncated cone shape to facilitate cleaning such as brush cleaning. Also,
The guide protrusion 9 stabilizes a steep inclination such as carrying or moving, and also stabilizes it, and prevents the tank 6 from slipping or overturning.

The above parts (1) to (3) can be combined as a set of tools to be used as a simple developing device.
Fig. 1 shows a standard dental X-ray film F on the film hanger 1.
Is attached and immersed in the liquid (developer, fixing liquid, water for washing, etc.) in the tank 6 such as the developing tank 6a. As shown in the figure, in a state where both ends of the rod of the handle portion 4 of the film hanger 1 are bridged between the claws 7 of the tank 6, the film holding portion hangs down and is immersed in the liquid in the tank 6. . The tank 6 is placed on the bottom plate 9 of the tray 8,
The horizontal position is fixed by the guide projection 9.

[0033]

EFFECTS OF THE INVENTION The simple developing device of the present invention enables immediate development processing in the development of a dental X-ray film without requiring a special device such as an automatic developing device. It is possible to carry out safe and reliable development processing without contamination or other unpleasant accidents caused by scattering of chemicals in manual development or instant development.

According to the simple developing device and the film hanger of the present invention, the X-ray film can be easily attached by utilizing the elasticity and the restoring force of the film itself, and the tweezers as in the case of the conventional manual development. Since the X-ray film is not scratched or unevenly developed by a clip or the like, and there is no fear of dropping it in the liquid medicine tank, accurate diagnosis is possible, and the value as medical information is not impaired. In addition, it becomes easy to perform a fumbling operation in a dark room or a dark box.

According to the simple developing device and the film hanger of the present invention, the film holding part is in a state of being suspended in each tank such as the developing tank, and only the film holding part is dipped in the chemical solution and the handle part is not attached. No chemicals will adhere.
Therefore, when the film hanger is sequentially transferred to each tank, the film hanger can be transferred while holding the handle portion to which the chemical solution does not adhere, and the hands are hardly soiled during the developing process. Also, when transferring the film from the dark room to the doctor's office or handing between the assistant and the dentist, you can hold it by holding the extended parts at both ends of this handle, so you can keep your hands clean. To be done.

The tray of the present invention is a box-shaped developing tank,
The fixing tank and the washing tank are securely received, and the guide projections make it possible to stabilize a steep slope such as carrying or moving, and also to prevent the tank from slipping or overturning. In addition, each tank is housed in a position surrounded by the projections for guides, and the positions and intervals of the tanks are kept constant, which facilitates operation in a dark room or a dark box under extremely dark conditions.

[Brief description of drawings]

FIG. 1 is a front view (partially cutaway sectional view) showing a usage state in an embodiment of a simple developing device of the present invention.

FIG. 2 shows an embodiment of the film hanger according to claims 2 and 3, (a) being a front view, (b) being a plan view,
(c) is an enlarged side view of the holding projection portion.

FIG. 3 shows one tank used in the embodiment of FIG. 1, (a) is a plan view, (b) is a cross-sectional view taken along the line BB,
(c) is a CC sectional view.

FIG. 4 shows an embodiment of the tray according to claim 4, (a) is a left side view showing a state in which a developing tank is installed in the tray, (b) is a front view of the same, c) is a plan view of the tray only.

[Explanation of symbols]

F ... X-ray film, 1 ... Film hanger, 2 ... Frame body,
3 ... Holding protrusion, 3a ... Head part, 3b ... Clamping part, 4 ... Handle part, 5 ... Hook, 6 ... Tank, 6a ... Developing tank, 6b ... Fixing tank, 6c ... Washing tank, 7 ... Claw, 8 ... Tray, 8a ...
Bottom plate, 9 ... Guide protrusion, 10 ... Collar, 11 ... Scale line

Claims (5)

[Claims] 1. A film hanger for mounting an imaged X-ray film, a plurality of tanks for storing a liquid for developing, fixing and washing the X-ray film mounted on the film hanger, and a tray for the tank. The film hanger has the vertical and horizontal inner dimensions defined by the X
A substantially rectangular frame body that is slightly smaller than the vertical and horizontal dimensions of the line film, a plurality of holding projections arranged on the front surface of the frame body so as to surround the X-ray film attached according to the dimensions of the X-ray film, and the frame. It is made up of a rod-shaped handle portion which is provided above the body and is sufficiently longer than the lateral width of the frame body, and the holding projection has a narrower sandwiched portion than the head portion inside the X-ray film detachment prevention head portion, A dental X-ray film simple developing device characterized in that the size of a quadrangle formed inside the sandwiched portion of the plurality of holding projections is made substantially equal to the size of the X-ray film. 2. The tank is a substantially rectangular box-shaped tank,
The dental X-ray according to claim 1, wherein a lateral width is shorter than a length of the handle portion, and a pair of claws having a constant length and a depth for receiving the handle portion are formed at an upper end portion facing in the lateral width direction. Simple film developing device. 3. A substantially rectangular frame body having vertical and horizontal internal dimensions slightly smaller than the vertical and horizontal dimensions of the X-ray film, and an X-ray film mounted on the front surface of the frame body according to the dimensions of the X-ray film. A plurality of holding protrusions, and a rod-shaped handle portion which is provided above the frame body and is sufficiently longer than the lateral width of the frame body. A film hanger for a simple developing device, characterized in that a sandwiched portion thinner than the head portion is formed, and a size of a quadrangle formed inside the sandwiched portion of the plurality of holding projections is substantially equal to the size of the X-ray film. . 4. The film hanger for a simple developing device according to claim 3, wherein a hook is provided at one end of the handle portion. 5. A tray for mounting a box-shaped developing tank, a fixing tank, and a water washing tank, each of which has a substantially rectangular planar shape, and for receiving the liquid leaked from each of the tanks. A tray for a simple developing device, wherein a plurality of guide protrusions are provided so as to surround a portion where the bottom is located.