JP3028835U - Development processor - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: Even for an X-ray film photographed with an X-ray irradiation dose lower than a standard value, the desired clear image can be obtained by efficiently processing in the developing bag. Provided is a development processing apparatus capable of reducing the amount of X-ray exposure in tooth X-ray photography and the like. A holding portion (2) for holding and holding a developing bag (B)
And a pair of stirring rods (3) that vertically stir the processing liquid in the developing bag (B) from the outside, and a pair of swinging arms that move the stirring rods (3) in opposite directions from the upper side. (4) and the crank pin that swings these swing arms (4) in opposite directions.
(3) A stirrer (1) comprising a spur gear (5) having (5a) and a motor (7) equipped with a pinion (6) for driving this spur gear (5) is installed at 30 ° C to 50 ° C. In the water tank (1) that contains hot water (W) with a temperature within the range and equipped with the control panel (11) for controlling the water temperature, the heater (13) and the temperature sensor (12), the lower holding cylinder
(2) and the rod (3) are immersed in the hot water (W) to provide a developing processing apparatus.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to an X-ray film development processing apparatus in the field of dentistry, and more specifically, to development of an X-ray film, which is stored in a non-translucent development bag and radiographed, in the development bag. The present invention relates to a developing processing apparatus suitable for developing an X-ray film photographed with a low X-ray irradiation amount.

[0002]

[Prior art]

 To develop a relatively small cut sheet film used for dental X-ray photography, etc., the film is housed in a developing bag made of a non-translucent resin sheet, X-rayed, and then stored in the developing bag. In the general dental field, the method of injecting the processing solution into the developing solution (hereinafter abbreviated as “processing in the developing bag”) is a very small amount of fresh processing solution and can be developed simply and efficiently in a bright room. Widely adopted. The developing process is achieved by applying an external force to the injected processing solution by rubbing it with a person's finger from the outside of the developing bag so that the processing solution is fluidized and agitated and evenly spread over the entire surface of the film. Conventionally, for dental intraoral radiography of domestic films, an X-ray film of normal sensitivity (screen film of sensitivity C group) is generally used. For example, a film used for X-ray imaging of adults (40 mm × In the case of processing in a developing bag of 30 mm square, the development was usually achieved by stirring for a relatively short time of about 15 seconds.

On the other hand, in the recent dentistry field, in order to suppress the X-ray exposure dose, X-ray photography using a high-sensitivity X-ray film that can obtain a clear image even at a lower X-ray irradiation amount has been desired. Came. However, since the high-sensitivity X-ray film has a large amount of silver in the film emulsion, the blackening degree and the contrast are the same at the same base density as the general C-group screen film (hereinafter referred to as C-sensitivity film). Although it is possible to obtain remarkably excellent images, the fixing process takes a long time. For example, in the non-screen film of the sensitivity D group (hereinafter abbreviated as D sensitivity film), the X-ray irradiation amount is about half that of the C sensitivity film. Although the same image can be obtained by shooting, when processing a film of the same size as the above in the development bag, in order to achieve reliable development and fixing, at least 40 It is necessary to evenly stir for about a second, and it is no longer practical to stir with human fingers.

Therefore, prior to the present application, the inventors of the present invention proposed a development processing apparatus capable of efficiently performing the processing in the development bag by agitating the processing liquid in the development bag from the outside (actual application). It was put into practical use as well. As shown in FIG. 5 ((a) is a side sectional view and (b) is a partially cutaway front view), the developing device of this prior application contains a developing bag (B). The holding cylinder (21) in the form of a vertical flat rectangular tube to be held by the holding cylinder (21) and the tuning fork-shaped branch rod (22a) that is arranged in parallel inside the holding cylinder (21) and faces the developing bag (B). ) Has a pair of left and right stirring rods (22), and a pair of cam arms (23) swinging in opposite directions by a cam disc (26) rotated by a motor (27). 25) Each of them is provided with a drive device (23) connected to a base rod portion of a pair of stirring rods (22) via a connecting rod (24). A pair of stirrers (22b) having a width approximately half the inner dimension of the holding cylinder (1) in the width direction are opposed to the inside of the upper part of the branch rod (22a) of the stirring rod (22). Have been installed. Then, as shown in Fig. (B), the processing solution is injected into the developing bag (B) held by the holding tube (21) by the dedicated injector (P), and at the same time, the developing bag (B) While the developing bag (B) is locked by the injection needle ((N) of the dedicated injector (P) inserted in the injection part (Bi), a pair of left and right stirring rods are driven by the drive device (23). (22) are moved up and down in opposite directions, at this time, the pair of stir bars (22b) at the tips of the stirring rods (22) make line contact with the surface of the developing bag (B) from both sides in the horizontal direction. Moreover, since the left and right pairs slide in opposite directions, the processing liquid in the developing bag (B) is flown in the vertical direction and in the direction of the adjacent pair and vigorously stirred, which causes the X-ray film to flow. With this development processing device, even a high-sensitivity X-ray film, which requires a long development processing time, can be efficiently processed by a human finger. Short time than, yet with a smaller amount of treatment liquid, excellent effect that stable and can be reliably developed is obtained.

[0005]

[Problems to be solved by the device]

 By the way, in the dentistry field, in order to further reduce the X-ray exposure dose, a film of the sensitivity E group "Kodak and Agfa Co., Ltd." that can obtain an equivalent image with an X-ray irradiation amount that is about half that of the D-sensitivity film. (Hereinafter, abbreviated as E-sensitivity film) is being tried to be applied. However, although these E-sensitivity films are effective in suppressing the amount of X-ray exposure, image particles become coarse due to the use of a special emulsion, and those that have been packaged so that they can be processed in the developing bag have not yet been developed. Since it is not on the market, it is not applied to the processing inside the developing bag in the radiographic X-ray imaging of teeth. Here, for example, if a D-sensitivity film photographed with a low X-ray dose equivalent to that of the E-sensitivity film can be processed in the developing bag to obtain a clear image, the X-ray exposure dose in tooth X-ray photography can be increased. However, although the processing efficiency is increased in the development processing device of the previous application, the film photographed with the X-ray irradiation dose significantly lower than the standard is processed in the development bag to produce a clear image. It's difficult to get a video. Therefore, in order to achieve such an objective, the development of a development processing device that can efficiently stir the processing solution in the developing bag from the outside and further promote the reaction between the processing solution and the film. Is an issue.

The present invention has been made in order to solve the above-mentioned problems, and an X-ray film photographed with an X-ray irradiation dose lower than the standard value can be efficiently processed in the developing bag. It is an object of the present invention to provide a developing device capable of obtaining a clear image having a blackening degree and a contrast.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention has the following configuration. That is, the development processing apparatus according to the present invention is defined as a vertical flat rectangular tube through which liquid can flow, and a holding section for accommodating and holding a developing bag therein, and a side section of the holding section. , A tuning fork-shaped bifurcating portion is provided at the tip of the developing bag, and a stirrer is provided at the tip of the bifurcating portion to move in contact with the surface of the developing bag. An agitator provided with a pair of upper and lower rods arranged so as to be movable parallel to each other in the horizontal direction in the section, and a drive means for moving the rods of the pair in opposite directions from the upper side, It is characterized in that at least a lower holding portion and a rod are arranged in a water tank containing hot water whose temperature is within a range of 30 ° C. to 50 ° C. by immersing them in the hot water in the water tank.

Further, it is preferable that the water tank is provided with a heater and a temperature sensor for controlling the water temperature, and the water level in the water tank is detected, and when the water level is below a set value, an input to the heater is made. A float switch for shutting off may be provided.

[0009]

[Embodiment of device]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 3 are drawings showing a configuration of an embodiment of a developing processing apparatus of the present invention, wherein (a) of FIG. 1 is a top view and (b) is (a). ) It is an AA sectional view of the drawing. In addition, (a) of FIG. 2 is a front view showing a part of a stirring device as a main part by notching, (b) is a cross-sectional view taken along the line BB of (a), and (c) is a main part. Partial side view showing the configuration, (d) is a plan view showing a developing bag according to the present embodiment. Further, (a) of FIG. 3 is a side view with a part cut away, and (b) is a sectional view taken along line CC of (a).

In FIG. 1, (1) is a stirrer, and this stirrer (1) has a vertical flat rectangular tubular holding portion (which holds and holds the image bag (B) therein ( 2), a stirring rod (3) in a pair that vertically stirs the processing liquid in the developing bag (B) from the outside, and a pair of swing rods that move these stirring rods (3) in opposite directions from the top. Drives the moving arm (4), a spur gear (5) having crankpins (5a) on both sides for swinging these swing arms (4) in opposite directions, and this spur gear (5). It has a motor (7) with a pinion (6) attached as a main part. Further, the stirring device (1) is arranged in a water tank (10) having a structure described later, and the lower holding part (2) and the stirring rod (3) are placed in hot water (W) in the water tank (10). Is soaked in.

Then, in this agitator (1), as shown in (a) and (b) of FIG. 2, a pair of L-shaped planes whose lower parts are projected laterally is used. The supporting end plate (1a) is connected in parallel by connecting the upper and lower sides and both side portions of the main body via the narrow spacing member (1b), and at the same time, the lower side and both sides of the lower portion protruding sideways. The partition member (2a) is provided on the side portion to define the bottomed vertical flat rectangular tubular holding portion (2). Further, a plurality of liquid flow holes (1c) are evenly provided in the lower part of the pair of supporting end plates (1a) to be immersed in water, and the partition member (2a) is also provided at the lower part of the outer side of the holding part (2). A liquid circulation part (2b) is provided so that hot water (W) can freely flow through the lower part including the holding part (2).

Further, as shown in FIG. 2 (b), the pair of upper and lower stirring rods (3) includes a plate-shaped base rod portion (3a) and a tuning fork from the base rod portion (3a). A pair of branch rods (3b) protruding in parallel in the horizontal direction and a pair of stirrers (3c) attached facing the front end of the branch rod (3b). Each of the branch rods (3b) penetrates through the partition member (2a) of the holding portion (2) and is projected inside, and the developing bag (B) housed in the holding portion (2). ) Are interposed between the stirrers (3c) at the front end to face each other. The pair of stir bars (3c) attached to the front ends of the branch rods (3b) are arranged to face each other with a width that is approximately half the height of the holder (1). The inner side portion is protruded in a semicircular shape, and the distance between the tips is set to a predetermined interval described later.

Further, the pair of swing arms (4) is, as shown in (b) of FIG. 1 and (a) of FIG. 2, a main body of the pair of support end plates (1a). In addition to being vertically arranged between the parts, the upper ends of the respective parts are coaxially and rotatably supported, and the lower ends thereof are mutually guided along the guide groove (1d) provided in the spacing member (1b) on the lower side of the main body part. It is swingable in parallel, and the lower end of each is rotatably connected to the base rod portion (3a) of the pair of stirring rods (3).

Further, between the pair of swing arms (4), there is slidably engaged with an engaging long hole (4a) provided in an intermediate portion of the pair of swing arms (4), and the two swing arms (4 Spur gears (5) with crankpins (5a) projecting from both sides are rotatably supported by a pair of supporting end plates (1a). On the other hand, the spur gear (5) is connected to the output shaft of the motor (7) arranged outside the rear support end plate (1a), and as shown in (a) of FIG. The pinion (6) positioned between the pair of swing arms (4) is meshed with the loose fit hole (4b) provided in the upper part of the swing arm (4). Then, the pair of swing arms (4) are driven to swing, and the pair of stirring rods (3) connected to the respective lower ends thereof are reciprocally moved in opposite left and right directions.

On the other hand, in the widthwise center of the inner surface of the partition member (2a) on the outer side of the holding portion (2), as shown in (b) of FIG. 2, a vertical holding groove (2c) is provided. The developing bag (B) is provided and is inserted into the holding portion (2) along the holding groove (2c) and held so as not to move in the thickness direction. In addition, as shown in Fig. 2 (b), the holding part (2) has its base end pivotally supported by a pivot member (9) attached to its rear side so that the front part is forward. There is a modified U-shaped holding lever (8) that holds both the shoulders of the developing bag (B) housed in the holding section (2) from above by rotating it, and Under the constitution, the developing bag (B) housed in the holding part (1) is stably held.

Here, the developing bag (B) in this example is a sealed bag made of a non-translucent soft vinyl chloride sheet, and has a rectangular planar shape as shown in FIG. 2 (d). The developing bag (Bi) is formed in the shape of a container and accommodates an X-ray film (F) indicated by a chain line in the figure, and an injection part (Bi) of the processing liquid is provided on the upper side thereof. The image of B) is developed after the X-ray photography in the procedure described later.

Further, in this example, the stroke of the left and right movement of the stirring rod (3) is set to be substantially the same as the width of the X-ray film (F) accommodated in the developing bag (B). . The base rod portion (3a) and the branch rod portion (3b) are made of a hard resin material, while the agitator (3c) is made of a resin material having a low friction resistance, and the opposing agitator (3c ) Is set to be approximately the same as the thickness of the developing bag (B) above, and when the stirring rod (3) is moved left and right, the opposing stirring bar (3c) is placed inside the holding part (2). The surface of the contained and held developing bag (B) was lightly line-contacted from both sides in the vertical direction and slid so that it could be handled in the horizontal direction.

On the other hand, the water tank (10) is formed into an upper open rectangular tank having a rear wall extending upward as shown in (a) and (b) of FIG. A control plate (11) is attached to the upper part of the rear wall of the rear wall, and the stirring device (1) holds the lower part of the stirring device (1) in hot water (W) introduced at a predetermined water level in the water tank (10). 2) and the stirring rod (3) are soaked in the water tank (10) that they are located closer to the front wall.

Further, a liquid expansion type temperature sensor (12) connected to a control panel (11) and a sheath type heater (13) are arranged at the bottom of the water tank (10) near the rear wall. There is. On the other hand, in the control panel (11), the water temperature control unit (11a) that controls the input to the heater (13) from the measured value by the temperature sensor (12), the input time to the motor (7) of the stirring device (1) There is a timer (11b) and a power switch (11c) to set the temperature.With this configuration, the temperature of the hot water (W) in the water tank (10) can be controlled and maintained at the set value. There is.

Further, a float switch (14) that automatically shuts off the input to the heater (13) when the water level falls below a set value is provided on the water surface near the rear wall of the water tank (10). As a result, even if the water level in the water tank (10) is extremely lowered and the temperature sensor (12) malfunctions, the input to the heater is automatically shut off, causing equipment damage or fire due to overheating. To prevent this.

The development processing by the development processing apparatus of the present embodiment having the above-mentioned configuration will be described. First, the inside of the water tank (10) is adjusted by inputting it to the heater (13) of the water tank (10) and adjusting by the water temperature control section (11a). Keep the water temperature at the set value. Then, after injecting a predetermined amount of developing and fixing solution as a processing solution into the developing bag (B) taken by X-ray photography, the developing bag (B) is loaded into the holding part (2) and the holding lever (8) Hold from above with. At this time, the developing bag (B) is inserted between the upper and lower two stirring rods (3) inside the holding portion (2) between the pair of stirring rods (3c) at the front end of the stirring rods (3c). Will be sandwiched between. Then, the motor (7) of the stirring device (1) is energized under the setting of the timer (11b) to move the pair of stirring rods (2) left and right respectively.

At this time, the pair of stir bars (2c) of the stirring rod (2) are in line contact with the surface of the developing bag (B) from both sides in the upward and downward directions, and the upper and lower pairs are in opposite directions. Since it slides like a handle, the developing and fixing solution as the processing solution injected into the developing bag (B) is flowed in the left-right direction and the direction of the adjacent pair and is vigorously stirred. The developing bag (B) also contains a small amount of air, which flows with a certain area on the surface of the X-ray film (F) along with the flow of the processing liquid, so that the processing liquid and the X-ray can be absorbed. This tends to hinder the uniform contact with the film (F), causing a decrease in development efficiency and uneven development, but in the development processing device of this example, the processing solution and air in the development bag (B) are made to flow. The stirrer (3c) of the stirrer rod (3) moves in the opposite direction in the upper and lower pairs, so that the moving bubbles are sheared into fine particles by the opposing movement of each other, and the treatment liquid and the X-ray film (F). It can be a factor that accelerates the flow of the processing solution, rather than a factor that prevents contact with the processing solution, and the processing solution is evenly contacted with the entire surface of the X-ray film (F) to cause the desired reaction. You can On the other hand, the holding part (2) accommodating the developing bag (B) is immersed in the warm water (W) in the water tank (1), and the pair of stirring rods (2) are reciprocally moved by the water tank (2). The hot water (W) in (1) is agitated and flowed to make the water temperature uniform, and the water is circulated in the holding part (2), so that the developing bag (B) stored in the holding part (2) It is possible to raise the temperature of the treatment liquid to a set value, thereby promoting the reaction between the treatment liquid and the X-ray film.

When the motor (7) stops after the processing for the set time, the image bag (B) is taken out from the holding section (2) and opened, and the developed X-ray film (F) inside the bag is opened. ).

As described above, in the developing processing apparatus of the present example, which processes the photographed X-ray film in the developing bag, the processing can be efficiently performed in place of a human finger, and the injected processing liquid is evenly distributed. With respect to the X-ray film photographed with an X-ray irradiation dose lower than the standard value, stirring and raising the temperature of the treatment solution to an appropriate temperature to strengthen and accelerate the reaction with the X-ray film, It is possible to obtain a clear image with the desired degree of blackening and contrast by processing in the development bag.

Next, an example of a specific developing process by the developing device of this example will be described. Prepare multiple development bags containing standard size (40 mm x 30 mm square) high-sensitivity X-ray film of sensitivity group D, and make the X-ray irradiation dose half of the standard value of the X-ray film, that is, Sensitivity After X-ray photography of an adult tooth with an X-ray irradiation dose equivalent to the value standardized for the high-sensitivity X-ray film in the E group, the amount of the standard solution in these developing bags was less than 3 ml, which was the standard amount. 2 ml of the developing and fixing solution was injected and the inside of the developing bag was processed by the developing device of this example.

In the above X-ray photography, a DFW-20 type X-ray apparatus manufactured by Asahi Roentgen Industry Co., Ltd. was used, and the irradiation conditions were 60 kVp, 10 mA, FFD (distance between focus films) 200 mm, and the X-ray irradiation time Was set to 0.12 seconds.

Here, the X-ray film including the D-sensitivity film used in this example has a standard development processing temperature of about 25 ° C., and is processed at a maximum of 30 ° C. When Hydendol manufactured by FUJIFILM Co., Ltd. is used as the standard processing, the processing temperature is set to 20 ° C., the development is performed for 2 minutes, and the fixing is performed for 2 minutes. When this standard process is carried out, the standard X-ray irradiation time under the above irradiation conditions is 0.5 seconds for the C-sensitive film, 0.24 seconds for the D-sensitive film, and 0.12 seconds for the E-sensitive film.

As the developing / fixing solution, a DQD processing solution (single solution processing solution) manufactured by Hanshin Institute of Technology was used, and the lateral movement speed of the stirring rod during the stirring processing was confirmed by a simulation performed in advance. It was set to 400 times / min, which was selected from the region of high shear efficiency. Then, the processing temperature and agitation time by controlling the water temperature in the water tank are variously changed, and the images developed and fixed on the processed X-ray film are processed by the standard irradiation time and the development fixing process as described above. A comparative study was conducted using the images obtained in and as a reference.

As a result, in the conventional example in which the treatment temperature was set lower than 30 ° C., even if the stirring time was lengthened, it was unclear and only an image unsuitable for medical judgment was obtained. In the case where the temperature was set to 30 ° C or higher, clear images with the desired degree of blackening and contrast could be obtained with relatively short stirring. The stirring time required to obtain a clear image at the desired level is, for example, 20 seconds in the case of 35 ° C and 15 seconds in the case of 40 ° C. It was confirmed that it can be shortened. However, when the temperature exceeds 50 ° C, the effect shows a tendency of saturation, and the influence of temperature on the film emulsion is observed. Therefore, the processing temperature is within the range of 30 ° C to 50 ° C, preferably 30 ° C to 45 ° C. It was found that it is appropriate to set the temperature of. From these results, the processing solution in the developing bag was stirred evenly, and the processing solution was heated in warm water in a water tank at a temperature in the range of 30 ° C to 50 ° C to raise the temperature of the processing solution to an appropriate temperature. It was possible to confirm the excellent effect of the developing device of the present invention that enhances and accelerates the reaction with the X-ray film.

As described above, in the developing device according to the present invention, the processing solution in the developing bag is evenly stirred and the temperature of the processing solution is raised to an appropriate temperature to enhance / promote the reaction with the X-ray film. Therefore, the X-ray film photographed with an X-ray irradiation dose lower than the standard value can be processed efficiently in the developing bag to obtain a clear image with the desired degree of blackening and contrast. You can get a good image. Further, from this, it is possible to more easily achieve a reduction in the X-ray exposure amount in tooth X-ray photography and the like. Further, the developing process can be carried out in a bright room, there is no need to provide a special dark room, and the apparatus structure is relatively simple, which is economical.

In the above-mentioned embodiment, the holding portion (2) of the stirring device (1) is defined by interposing the wall-shaped partition members (2a) on both sides, but this is not the case. As an example, as shown in FIG. 4 which is a partial perspective view showing a part of it by cutting away, the side portion on the main body side is replaced with a wall-shaped partition member (2a), and The partition bar (2d) defines a plurality of partition bars (2d) that are arranged to intersect each other at a predetermined interval, and the partition bars (2d) allow parallel movement of the branch rod sections (3b) of the pair of stirring rods (3). In addition to being guided, the developer bag (B) can be structured so as to regulate and hold the lateral movement of the developing bag (B), and the circulation of hot water (W) into the holding portion (2) can be made smooth. This is a preferred embodiment.

In the above embodiment, the temperature sensor (12), the heater (13) and its control panel (11) are provided in the water tank (10) to control the temperature of the hot water (W) inside to the set value. -The temperature control mechanism is retained, but this is to cope with relatively frequent operation, and when a device with a simpler configuration is required, these temperature control mechanisms are omitted and a predetermined external The inside of the developing bag may be treated by introducing warm water of elevated temperature into the water tank.

Further, in the above embodiment, the processing in the developing bag of the high-sensitivity X-ray film of the sensitivity D group was described. However, in the developing processing apparatus of the present invention, the processing in the developing bag of the X-ray film of the sensitivity C group is performed. The same effect can be obtained by using. In other words, even when shooting with an X-ray dose lower than the standard value for the X-ray film, a clear image with the desired degree of blackening and contrast is obtained, which reduces the amount of X-ray exposure. Can be achieved.

[0034]

[Effect of device]

 As described above, according to the development processing apparatus of the present invention, the processing solution in the developing bag is efficiently and evenly agitated from the outside, and the temperature of the processing solution is raised to an appropriate temperature so that the processing solution can be used in combination with the X-ray film. The reaction can be strengthened / promoted. Therefore, even in the case of X-ray film photographed with an X-ray irradiation dose lower than the standard value, the inside of the developing bag can be processed efficiently to obtain the desired blackening degree and contrast. You can get a clear image. Further, this can reduce the amount of X-ray exposure in tooth radiography.

[Brief description of drawings]

1A and 1B are views showing a configuration of an embodiment of a developing processing apparatus of the present invention, wherein FIG. 1A is a top view and FIG. 1B is a view in FIG.
-A is a front sectional view.

2A and 2B are explanatory views of a stirring device as a main part of the development processing device shown in FIG. 1, in which FIG. 2A is a partially cutaway front view, and FIG. 3B is a sectional view taken along line BB, FIG. 6C is a partial side view showing the configuration of the main part, and FIG.

3A and 3B are explanatory views of a main part of the development processing apparatus shown in FIG. 1, in which FIG. 3A is a side view showing a part of the development processing device and FIG.
It is CC sectional drawing of (a) figure.

FIG. 4 is a partial perspective view showing a partial cutaway view of a main part configuration of another embodiment of the development processing apparatus of the present invention.

5A and 5B are drawings showing a schematic configuration of a developing processing apparatus of the prior application, wherein FIG. 5A is a side sectional view, and FIG. 5B is a front view showing a part of which is cut away.

[Explanation of symbols]

(1)-Stirrer (1a)-Support end plate (1b)-Spacing member (1c)-Liquid flow hole (1d)-Guide groove (2)-Holding part (2a)-Partition Member (2b)-Liquid flow section (2c)-Holding groove (2d)-Partition bar (3)-Stirring rod (3a)-Base rod (3b)-Branch rod (3c)- -Stirrer (4) --Swinging arm (4a) --Elongation hole (4b) --Free fitting hole (5) --Spur gear (5a) --Crank pin (6) --Pinion (7 ) --Motor (8) --Holding lever (9) --Pivot member (10) --Water tank (11) --Control panel (11a) --Water temperature controller (11b) --Timer (11c)- -Power switch (12)-Temperature sensor (13)-Heater (14)-Float switch (B) --Development bag (F) --X-ray film (W) --Hot water

Claims (3)

[Scope of utility model registration request] 1. A holding part which is defined as a vertical flat rectangular tube through which a liquid can flow and which holds and holds a developing bag therein, and a developing bag which is arranged on the side of this holding part and is at the tip. Has a bifurcating part formed in a tuning fork shape facing each other with the stirrer in contact with the surface of the developing bag at the tip of the bifurcating part, and the bifurcating parts are parallel to each other horizontally in the holding part. A pair of upper and lower rods that are movably arranged, and a drive unit that moves the pair of rods in the opposite directions from the upper side. A development processing apparatus, characterized in that at least a lower holding portion and a rod are arranged in a water tank containing hot water at a temperature so as to be immersed in the warm water in the water tank. 2. The development processing apparatus according to claim 1, wherein the water tank includes a heater for controlling the water temperature and a temperature sensor. 3. The water tank detects the water level in the water tank,
The development processing apparatus according to claim 2, further comprising a float switch that shuts off an input to the heater when the water level becomes equal to or lower than a set value.