JPS60241047A - Radiation diagnostic device - Google Patents

Abstract

PURPOSE:To record radiation image information effective to diagnosis all the time by conveying a storage fluorescent material sheet to a storage part unless fluoroscopy is not performed within a specific time after the fluorescent material sheet passes through a secondary erasure part. CONSTITUTION:A sequence control part 201 starts clocking the time on the completion of the secondary erasure of the fluorescent material sheet (IP) and does not move the sliding member for the IP to a photographic position, but conveys the IP to the storage part unless an X-ray exposure button is pressed within the specific time (3-4hr). Thus, radiation image information invariably effective to diagnosis s recorded.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention belongs to the field of medical equipment for diagnosis, and more specifically, for example, uses a stimulable phosphor sheet for recording and reproducing radiographic images in large quantities and continuously. The present invention relates to a radiological diagnostic apparatus that performs radiographic imaging.

[Technical background of the invention and its problems] Certain phosphors are exposed to radiation (X-rays, α-rays, β-rays.

When irradiated with Y-rays, ultraviolet rays, etc., part of the energy of this radiation is accumulated in the phosphor, and then when the phosphor is irradiated with excitation light such as visible light, depending on the accumulated energy, The phosphor exhibits stimulated luminescence. A phosphor exhibiting such properties is called a stimulable phosphor.

Using this stimulable phosphor, radiation image information transmitted through the human body, etc. is recorded on a sheet of stimulable phosphor, which is scanned with excitation light to cause stimulated luminescence. A method has been proposed in which an image signal is obtained by reading out the image, and this image signal is processed to obtain an image suitable for diagnosis.

This final image may be reproduced as a hard disk or on a CRT. In such a radiation image recording and reproducing method, a stimulable phosphor sheet (strictly speaking, in addition to a panel-shaped sheet, a drum-shaped sheet, etc.) is used.
It can take various forms, but here they are collectively referred to as:
This will be referred to as the "image plate" and will be referred to as I.
It will be abbreviated as P. ) is repeated about 1000 times after the recorded image is read out by performing readout irradiation for photostimulation after radiography. Radiology I! The H-C has been adapted to be used in i-devices.
- In a radiological diagnostic apparatus using such IP, the IP is taken out one by one from the supply unit, the IP is transported to the imaging position and stopped, and then the exposure button is pressed and the I
Radiographic image information is recorded on the phosphor layer of P, and T
I am trying to store P in the storage section.

By the way, when reusing such a stimulable phosphor sheet, the accumulated radiation energy caused by the recorded radiation image information should be destroyed by irradiating it with sufficiently strong excitation light during readout. . However, in reality, complete erasure is not possible with only the excitation light irradiated during readout.
There is a problem that the previous photographed image remains and becomes noise in the next photographed image.

It takes a relatively long time to remove this noise, so
Before supplying the image to the radiological diagnostic equipment, primary erasing is performed to remove afterimage noise.

On the other hand, since radioactive isotopes such as 228 Ra and 40 are mixed in the stimulable phosphor, the radiation emitted from these radioactive isotopes accumulates radiation J and energy, which is also a cause of noise. becomes. In addition, environmental radiation such as cosmic rays and X-rays from other X-ray sources also accumulate energy, which also causes noise. Above 2
Remove seed noise immediately before shooting 1. -J, therefore, a secondary canceler for removing this noise is installed in the radiological diagnostic apparatus.

However, even if the IP from which noise has been removed in the secondary eraser is 1tflt 3M and stopped at the imaging position to enable decoy imaging, the 1111 button is pressed due to the patient's convenience or the operator's judgment. There may be cases where this is not done. Alternatively, there is a possibility that the diagnostic work for the day ends with the TP left in the standby position. In such a case, if the IP is left on standby for a long time at the standby position or the photographing position, even though the noise has been removed by the secondary eraser, the re-trace release source energy may be accumulated. become. This time is generally 3 to 4
It has been confirmed that time. Therefore, if radiography is performed on an IP that has been on standby for a long time at the imaging position until after secondary erasure, the resulting radiographic images cannot be effectively utilized for diagnosis due to the noise. Become.

[Object of the Invention] The present invention has been made in view of the above circumstances.
To provide a radiological diagnostic device capable of constantly recording diagnostically effective radiographic image information by preventing radiographic imaging from being performed on a stimulable phosphor sheet that has been on standby for a long time before being spiralized after next erasing. The purpose is to

4- [Summary of the Invention] The outline of the present invention for achieving the above object is to detect that the stimulable phosphor sheet has passed through the secondary erasing section, and to prevent radiation exposure even after a predetermined period of time has passed after this detection. If no shadow is to be cast, the stimulable □ phosphor sheet is transported to a storage section.

[Embodiments of the Invention] Hereinafter, embodiments of the radiological diagnostic apparatus of the present invention will be described with reference to the drawings.

The radiological diagnostic apparatus, for example, the X-ray diagnostic apparatus 1 shown in FIG.
An X-ray tube 2 for irradiating a subject (patient) with X-rays;
A top plate 3 placed below the wire tube 2 and used to place the subject under test.
, a spot shot device 4 which is arranged at the bottom of the top plate and includes an IP transport path, and an image system including an image intensifier which converts the X-rays emitted from the X-ray tube 2 and transmitted through the subject into electrical signals. It consists of 5.

Incidentally, from the X-ray tube 2, X-rays are emitted to transfer a transmitted image of the subject onto the IP, and X-rays are transmitted through the image intensifier to display the transmitted image on a display (not shown). Two types of X-rays are emitted.

The spot shot device @4 shown in FIG. erased IPI of
A special equipment section 30 that transports the IPll and temporarily makes it standby; a light shielding part 40 that blocks the light from the secondary erasing section 20; Part 50 of the holder to hold, the danced I
It is composed of a storage section 60 that transports and stores the Pll.

The supply unit 10 includes a feed magazine 12 in which IPIIs are stacked and set,
I is placed above I and from within the feed magazine 12.
a pair of suction parts 13A for taking out the PLL one by one;
13B and a vacuum pump 14, and a delivery section that guides the IPll taken out by the takeout mechanism 15 in the transport direction. 119. Further, the secondary erasing section 20 includes a secondary erasing device 23 that controls a light emitting lamp 22 that irradiates light when the IPll sent from the transmitter section 19 passes above.

The special equipment section 30 has an outer belt 31 and an inner belt 32 that are driven by a second motor M2 (details will be described later). A standby sensor 36, which is a sensor, is arranged.

The light shielding section 40 includes a guide 41, a light shielding roller 42, and a light shielding plate/
A flaw detection device 48 is arranged near the light-shielding roller 42.

The holder part 50 has an upper belt 51 and a lower belt 52 that are driven by a third motor M3 (details will be explained later). A position sensor 58 is arranged.

Further, as shown in FIG. 3, this holder part 50 is movable along guide shafts 182 and 182 in the direction of the arrow shown in the figure (from the front side of the drawing to the back side in FIG. 2). , IPll, which is holding part 501 of the boulder, is moved from the initial position @A to the photographing position @B. Furthermore, this shooting position B
The top plate 3 and the xII tube 2 on which the patient is placed are arranged above, and the image system 5 is below the imaging position B.
is located. After the photographing of IPll is completed, the holder part 50 is returned to the initial position A, and the holder part 50 is returned to the initial position A.
P11 is delivered to the storage section 60. In FIG. 3, the limit switch 183 is a switch that detects that the holder part 50 has returned to the initial position nA, and the limit switch 184 is a switch that detects that the holder part 50 has returned to the initial position nA.
This is a switch that detects that the camera has reached the shooting position B. Note that the means for detecting the arrival at the ml shadow position B is as follows.
It may also be a rotary encoder that detects the rotational output of a fifth motor M5, which will be described later.

The storage section 60 includes a drive belt 61 for transporting the image-transferred 1P11, a drive roller 62 closely attached to the drive belt 61, a feed mechanism section 63, and a take-up magazine for storing the IPll of the dust image. 65, a presser plate 66 supported above the pick-up magazine 65, a suppression mechanism section 67 for pushing the 1P11 into the pick-up magazine 65, and a barcode reader 70 for reading the barcode of the IPll. .

Next, the outline of the control system of the X-ray diagnostic apparatus will be explained with reference to FIG. FIG. 4 is a block diagram showing a schematic configuration of the control system. In the figure, what is indicated by 201 is a sequence control unit that sequentially controls each control unit based on commands from each sensor, etc., which will be described later. The suction unit drive control unit 202 controls the pair of suction units 13A in the supply unit 10,
1.3B, and a first sensor (
The first motor M1 in the take-out mechanism section 15 is reversibly rotated based on the output signal of the motor 116 (details of which will be described later). Further, the vacuum pump control section 203 controls the driving of the vacuum pump 14 that executes the 1P11 suction operation in the pair of suction sections 13Δ and 13B. The lamp control section 204 performs feedback control of the effective current of the secondary eraser 23 in the secondary eraser 20. The first conveyor belt drive control section 205 controls the outer belt 31. The drive of the inner belt 32 is controlled by switching between two speeds, and the drive and stop of the child is controlled. When receiving TPll from the secondary erasing section 20, the first conveyor belt drive control section 205 controls the drive of the second motor M2 in synchronization with the sending means 19, 2
The drive is stopped based on the output signal of the sensor) 36.

Thereafter, after a predetermined period of time has elapsed, the second motor M2 is driven at high speed to supply IPll to the holder portion 50. The second conveyor belt drive control section 206 is
This is to drive and control the upper belt 51 and lower belt 52 in the boulder part 50. That is, the IP in the holder part 50 is controlled by driving the third motor M3.
Controls the transport and stopping of ll. This second conveyor bell 1~
The drive control unit 206 inputs the position information of the conveyance tip of the IPll during conveyance from the position sensor 58 as the third sensor, and inputs the position information of the conveyance tip of the IPll during conveyance, and controls the rotary motor M3 fixed to the motor shaft of the third motor M3. 117, and based on these inputs, the third motor M3 is controlled to stop the IPll at a predetermined photographing position. Then, when the limit switch 183 detects that the holder part 50 has moved to the imaging site and then returned to its original position, the third motor M3 is driven to supply and transport IPll to the storage section 60. It has become. Further, the drive control section 206 controls the second transport bell to guide the IPII to the storage section 60 without stopping it at the photographing position even if the flaw detection device 48 detects that there is a flaw on the surface of the IPII. The third motor M3 is controlled to drive. Note that the drive belt 61 and the feed mechanism section 63 in the storage section 60 are driven by a sixth motor (not shown). The sliding drive control section 208 controls the driving of the fifth motor M5, which is a driving means for the sliding members 181, 181 in the part 50 of the holder 11. This sliding drive control unit 208 drives the holder part 50 from the initial position A to the imaging position B when the exposure button (f) shown in the figure is pressed, and after the X-ray exposure is performed. The holder portion 50 is returned to the initial position A. Note that the sliding drive control unit 20B detects that the rPll has reached the imaging position based on the output of the limit switch 184, and then moves the sword, and when the X-ray exposure ends, the holder part 50 is returned to the initial position A. The presser plate drive acclimatization unit 207 controls the reversible rotation of the fourth motor M4, which is a driving means for the pressing mechanism unit 67 in the storage unit 60, and by controlling the drive of the fourth motor M4, The presser plate 66 is driven, the barcode reader 70 is scanned, and the nip roller 63 is driven to retreat.

Next, the configuration, operation, and effects of the supply section 10 will be explained with reference to FIGS. 5 to 7. IP stacked in the feed magazine 12
ll is housed with the phosphor layer (hereinafter also referred to as the surface) 11a facing downward, as shown in FIG. This rP
The ejecting mechanism section 15 for sequentially ejecting 11 sheets one by one is constructed as shown in FIG. 5(a). That is, the pair of suction parts 13A, 13 are placed at the four corners of the rectangular frame 100.
B is attached. The pair of suction parts 13A includes suction pads 13a, 13a that suction both ends in the width direction of the IPII stored in the feed magazine 12 on the leading end side in the take-out direction, and the suction pads 13a,
The vacuum pump 14 is connected to each of the vacuum pumps 13a. Further, the pair of suction sections 13B are provided with suction pads 13b, 13b for suctioning both ends in the width direction of the IPll at the central portion along the take-out direction of the IP11, and the suction pads 13b, 13b are provided with the suction pads 13b, 13b, respectively. A vacuum pump 14 is connected. Further, a corrugation member 16 is attached to the frame 100 at an intermediate portion of the suction pads 13a, 13a constituting the pair of suction sections 13A. This corrugation member 16 is provided with a suction pad 16a at a position that projects vertically downward from the suction portions of the suction pads 13a, 13a.
A vacuum pump 14 is connected to a. Further, a coil spring 17 is inserted between the suction bat support 18 and the frame 100 to constantly urge the suction pad 16a downward. The vacuum pump 14 receives an operation command from the sequence control section 201 (
Adsorption and release are controlled by the vacuum pump control section 203. The frame 100 includes a frame support rod 1
01 is fixed. Bearings 102, 102 are attached to both ends of this frame support rod 101. Further, longitudinal hole-shaped guide grooves 103, 103 for guiding the transfer and installation of the Ar+ frame support rod 101 via the bearings 102, 102 are bored in the frame (not shown). As shown in FIG. 2, this guide groove 103.103 has a pair of suction portions 13Δ.

13B and the corrugation member 16 are formed to guide the feed magazine 12 to the lowest layer of IPll loaded in the feed magazine 12. Further, a drive shaft 107 for moving the frame support rod 101 along the guide grooves 103, 103 is arranged parallel to the frame support rod 101. The drive shaft 107 has first link plates 1 to 1071.10/l fixed to its both ends, while the frame support rod 101 has second link plates 106.106 fixed to its both ends. First link plate 1
0/1. ．． 104 and second link play h106°10
6 are rotatably connected via fulcrums 105, 105, respectively. A driven sprocket 108 is fixed to one end of the drive shaft 107, and the reversible rotational force of the first motor M1 is transmitted to the driven sprocket 108 via a drive sprocket 109 and a chain 110. It has become. The first motor M1 is connected to the first sensor 11 disposed near the extraction mechanism section 15.
6 (not shown), the pair of suction parts 13A.

13B is detected, the normal rotational drive is stopped based on the control of the suction unit drive control unit 20215-, and then the reverse rotational drive is started after a predetermined period of time has elapsed.

As shown in FIG. 5(b), the sending member 19
It consists of a pair of rollers 111, 111 mounted at positions corresponding to both ends of the IPll in the width direction, and a corrugation roller 112 mounted at a position corresponding to the center of the widthwise direction of the IPll. The roller pair 111, 111 is connected to the drive shaft 1
Drive rollers 111a, 111a fixed to both ends of 130
It consists of idle rollers 111b, 111b which are rotatably attached to the support shaft 114 and come into contact with the drive rollers 111a, 111a, and a coil spring 115 which is attached between the drive shaft 113° and the support shaft 114. There is. Further, the corrugation roller 11
2 is fixed to the center of the drive shaft 113, and its diameter is larger than the diameter of the drive roller 111a.

The operation and effects of the supply section 10 configured as described above will be explained with reference to FIGS. 6 and 7. First, in order to take out TPll, the first motor M1
is rotated in the forward direction, and the drive shaft 107. 1st. The frame support rod 101 is driven to move downward along the guide groove 103 via the second link plates 104 and 105.

As the frame support rod 101 moves, the frame 1
When 00 is moved downward, first] rugation member 1
The suction pad 16a shown in 6 comes into contact with the non-fluorescent surface (referred to as the back surface) of the IPll. Note that since the corrugation member 16 is attached via the coil spring 17, the frame body 100 can be moved further downward. Frame body 10
0 further downward, all the suction pads 13a
, 13a , 13b , 13b .

16a comes into contact with the non-fluorescent surface of TPll, and at this position the forward rotational drive of the first motor M1 is stopped.

This state is shown in FIG. 6(a). In addition, FIG. 6(a) is a view seen from the direction of taking out the IPll, and the adsorption Para 1
~13a, 13a, 16a are the same height and IPl
is in contact with l. Here, the vacuum pump 14 is driven to adsorb IPll. In addition, adsorption Pabut 138 etc. are IPl
Since the non-fluorescent surface of the phosphor layer 1 will be adsorbed, the phosphor layer 1
No adsorption marks are left on 1a. After this, the first motor M1 is driven to rotate in reverse to start the separation operation of IPll. The first motor M1 is driven to rotate in reverse to rotate the frame 10.
When 0 is raised, the suction pad 13a initially.

Only 13a, 13b, and 13b rise, and the suction pad 16a of the gating member 16 is urged downward by the urging force of the coil spring 17 and does not rise. As a result, when viewed in the 1] direction of the IPll, only both ends in the width direction of the IPll were separated, and the central portion was protruded downward by the corrugation member 16. It is in a state.

That is, the TPII is formed in a wavy state in the width direction, and this undulation occurs over the entire length of the P11 (direction along the take-out direction). In particular, the suction pads 13b, 13
Due to b, I
This effect is remarkable because both ends of the Pll in the width direction are attracted. In this way, by forming the IPll in a wavy shape in the width direction, the section modulus of the IPll becomes large, and sag does not occur when the rPll is separated and moved.

Therefore, even if the frame body 100 is further lifted upward, the adsorbed TPII is also lifted in parallel to the non-adsorbed portion, as shown in FIG.
It can be separated without contacting ll. As a result, the phosphor layer 11a is not damaged due to contact between the IPs 11 when taking out the IPs. In addition, as shown in FIG. 6(b), when the IPll separation operation starts, the IPll
By forming a wavy shape in l, the excellent effect of the square can also be achieved. That is, at the start of the separation operation,
First, both ends of the IPll in the width direction are separated from other IPlls, and an air layer is formed between them. In this way, by forming an air layer between other IPlls, it is possible to completely cut off the contact with the other IPll, and it is possible to completely prevent the IPII from taking two pieces due to pseudo adsorption due to static electricity, etc. can.

19- In this way, the 1
The pieces of IPll are supplied to the delivery member 19 by moving the frame 100 into the guide groove 103. The tip of the IPll in the take-out direction is the drive roller 11
1a, 111a and the idle rollers 111b, 111b, the driving roller 111a and the idle roller 11 are pulled together by the biasing force of the coil spring 115.
1b, the TPll is held between the drive roller 111
It receives the conveying force of (a) and is sent to the other side (see Fig. 7). At this time, when transferring the TP 11 to the delivery member 19, the pair of suction parts 13A, 13B, the corrugation member 16. Alternatively, slippage may occur between the delivery member 19 and the IPll. However, when the non-fluorescent surface of rPll is adsorbed and the drive rollers 111a and 111a are transferred,
Since the non-fluorescent surface side of IPII is brought into contact with the phosphor layer 11a, the phosphor layer 11a will not be damaged.

In addition, the sending section (the 19th is the center 20 in the width direction of the IPll)
Since the corrugation roller 112 is disposed at a position corresponding to a part of the IPll, the corrugated shape of the IPll formed by the corrugation member 16 is again formed into a corrugated shape by the corrugation roller 112 (Fig. 7). reference).

Therefore, the leading end side of the IPII in the take-out direction after passing through the delivery member 19 is sent out without sagging, and the secondary erasure at the subsequent stage and delivery to the special equipment section 30 can be performed smoothly.

The secondary erasing section 20 is for erasing noise that may have accumulated in the phosphor layer 11a of the IPll by irradiating the IPll with light using the light emitting lamp 22 as described above. That is, the IPll, which was once subjected to erasure outside before being supplied to the radiological diagnostic apparatus 1, is completely erased by performing the erasing process again during transportation. The light emitting lamp 22 in the secondary erasing section 20 is powered by an AC power source.

Incidentally, in order to maintain the brightness and color temperature of the light-emitting lamp 22 constant and to achieve complete secondary lighting, the lamp load power must be kept constant. In this embodiment, feedback is performed to keep the actual value I of the lamp current (AC) i(t) constant, thereby keeping the lamp load power constant.

Next, the configuration and operation of the special equipment section 30 will be explained.

The special equipment section 30 includes an outer belt 31 and inner bells 1 to 32 that are joined to each other so as to sandwich and convey the IPll, and an outer belt 31 . The inner belt 32 is synchronized and intermittently rotated in one direction (
Driving drums 33a and 33b rotating in the direction of the arrow shown in the figure)
and 34a, 3/ll). The lower ends of the outer belt 31 and the inner belt 32 on the side of the secondary eraser 20 are connected to the secondary eraser 23 along the arcuate guide piece 37.
It is stretched in a shape fg bent in an arc toward the side.

The length of the part where the outer belt 31 and the inner bell 1 32 forming the special part 30 are joined to each other is almost the same as the length of the IP. In addition, the outer belt 31 and the inner belt 3
A standby sensor 36 is arranged at the upper end of the printer 2 to detect the tip of the IPll being transported. Based on the signal emitted from this standby sensor 36, the driving drums 33a, 33
b, 34a, and 34h are stopped. Further, upon receiving a signal that the previous IP in the holder part 50 returns to its original position from the ml shadow area and is transferred to the n storage parts 60, the driving drums 33a, 33b
Then, the driving of 34a and 34b starts again. Note that 35 is a driven drum that applies a certain amount of tension to the stretched outer belt 31 and inner belt 32.

Since the special equipment section 30 has the above-described configuration, the rPll from which noise has been eliminated is held and conveyed by the outer belt 31 and the inner belt 32 while changing direction at the arc-shaped bent portion, and the tip thereof is connected to the standby sensor 36. When reaching the point, the drive of both the outer and inner bells -31 and 32 is stopped by a signal from the sensor 36, and the rpi1 temporarily waits in the special equipment section 30. Both the outer and inner belts 31 and 32, which have stopped driving, start driving again in response to a signal when the first shadow of the previous IP in the holder part 50 has been completed and the transfer to the storage section 60 has started. It is conveyed to the holder part 50 through the light-shielding roller 42 . At this time, a new IP from which the noise on the IP has been erased by the secondary erasing section 20 enters the special equipment section 30 and temporarily waits there as in the previous case. In this way, the noise-eliminated IPll is
Since it is always on standby just in front of the holder part 50, which is the shooting position, it can quickly and smoothly perform continuous XI! IN shadowing can be performed, making it possible to shorten the imaging cycle time. This is because in the conventional transport route, the film before and after shooting used part of the same transport route, so it was not possible to provide a special section as described above, but with the present invention, the IP before and after shooting Since they each pass through separate transport paths, it is possible to provide the above-mentioned special equipment section 30 on the transport path between the secondary erasing section 20 and the holder part 50.

Next, the structure and operation of the light shielding section 40 will be explained with reference to FIG. 8.

The light shielding section 40 includes a guide plate 41 that guides the transport direction of the IPll, and a light shielding roller 42 disposed in close contact with the guide plate 41, respectively, on the guide plate 41 and the light shielding roller 42. Light shielding plates 43a and 43b that come into contact with
It consists of The light shielding roller 42 is shown in FIG. 8(a),
As shown in (b), the area around the roller 42a is made of foamed plastic with a large amount of deformation (for example, urethane foam A--2).
B bearings 44
It is rotatably supported by the shirts 1 to 45 via. The flexible member 42b that covers the surface of the light-shielding roller 420 is in close contact with the side plates 46 on both sides that support the shaft 45, so it is likely that the flexible member 42b will wear out as the roller A2a rotates. A sheet member 47 that is abrasive and has a low coefficient of friction is attached. Further, the light shielding plates 4.3a and 4.3b are arranged so as to shield light from areas other than the transport path of the ) Pll. In addition, the light shielding roller 4
At a position near 2, there is an IPll that has passed through the light shielding roller 42.
A flaw detection device 48 is disposed to detect flaws on the surface.

In order to have the above configuration, the light shielding unit 40 enters the light shielding roller 42 while being guided by the guide plate 41 with the surface of the transported IPll facing the light shielding roller 42 side after completing the secondary erasing, and is guided by the guide plate 41 to shield the IPll from light. The roller 42 rotates according to the transport speed of the IP and moves to the holder part 50 which is the next transport path.
Transfer to.

At this time, since the surface of the light-shielding roller 42 against which the surface of the IP hits is formed of the flexible member 42b, the rpli does not damage the surface when it passes through the light-shielding roller 42. Furthermore, since the flexible member 42b is made of a material with a large amount of deformation, the flexible member 42b is deformed by the thickness of IPll when passing through, and the light shielding roller 42 rotates while being pressed against the guide plate 41. , TPll is being transported, the light from the secondary erasing section 20 can be completely blocked, and the spiral-shaped IP will not be affected.

Next, regarding the structure and operation of the holder part 50,
This will be explained with reference to FIGS. 9 and 10.

The holder part 50 includes an upper belt 51 and a lower belt 52 that are joined to each other so as to sandwich and convey the TPll, and the upper belt 51,
Drive rollers 53a, 53b, 54a, 5/
Ib, an arc-shaped guide member 5 that bends both ends of the upper belt 51 and the lower belt 52 downward in an arc shape.
5, tension rollers 56a, 56b and 57a, 57b are installed near the guide member 55 and abut on the upper bells 1-51 or the lower belt 52, respectively. Note that 58 is a position sensor that detects the leading or trailing end of the IP that is being conveyed while being held between the upper belt 51 and the lower belt 52.

The upper belt 51 is made of an X-ray transparent material such as urethane.
As shown in FIG. 10, the length in the width direction perpendicular to the transport direction is approximately the same as the width of the IP. In other words, the upper belt 51 on the surface side of the IP that holds the IP is wide so as to cover the entire surface of the IP.

On the other hand, the lower bell 52 is composed of four narrow belts, and these four narrow belts -9Ω- are driven at the same speed by drive rollers 54a and 54b. There is.

Also, by arc-shaped guide members 55.55 arranged at both ends of the upper belt 51 and lower belt 52, bent portions 59. 59 is formed. The length between the curved portions 59 and 59 of both layers is I
The length is almost the same as that of P, and the front and rear ends of the IP can be held between the double-layer curved portions 59 and 59.

Tension rollers 56a, 56b and 57a.

57b is a rotatable driven pulley whose shaft is fitted into the receiving shaft portion 190, and near each receiving shaft portion 190, as shown in FIG. 9, an upper belt 51 and a lower belt 52 are provided.
A plurality of bearing parts 190A are arranged in parallel, and the position of the shaft can be varied in the direction of increasing or decreasing the tension of the belt. Each tension roller whose shaft is fitted into the bearing part 190 is connected to the other bearing part 190A by an operation lever (not shown).
It is possible to adjust the tension of each belt by inserting it into the upper belt 51 or lower belt 52.The tension of each belt can be adjusted by detecting the optimum tension in advance. At the same time, the tension may be automatically varied in a controlled manner.

The driving rollers 53a, 53b, 54. a, 54
1 is adapted to be rotated based on the drive of the third motor M3. This third motor M3 is drive-controlled by the second conveyor belt drive control section 206.

Further, this holder part 50 includes the roller groups 53a, 53b, 54a, 54b, 5
6a, 56b, 57a, and 57b are held by the frame 180 that rotatably supports them. This frame 180
Sliding members 181 and 181 are fixed to both end sides of. The sliding members 181, 181 are connected to the guide shaft 182.
182, and is slidable along the guide shafts 182 and 182 by the fifth motor M5. Note that this fifth motor M5 is driven based on the drive control of the sliding drive control section 208.

The holder part 50 configured as described above drives the third motor M3 based on the control of the second conveyance belt drive control section 206 when the IPll is conveyed at high speed from the special equipment section 30. Drive rollers 53a, 53b, 54
a, 54h is rotated, and the rPll is conveyed while being held between the upper belt 51 and the lower belt 52. At this time, the transported IPll changes the transport direction at the bending part 59,
The IPll will be transported with its surface facing upward.

Here, when the leading and trailing ends of the transported TPll reach the bent portions 59 and 59 at both ends, as will be described later, the I
The Pll stops, but at this time, since tension is applied at the double layer bending portion 59.59, the IPll conveyed by both the upper and lower belts 51.52 stops accurately at a predetermined stop position. , its position will not shift.

Therefore, the IPll stopped at this predetermined stop position can be moved to a predetermined photographing position, which will be described later, without any positional deviation. Moreover, the tension of each belt is applied to the upper belt 51 and the lower belt 52 that hold the TPll by a tension roller 56a.

The shafts 56h, 57a, and 57b are connected to appropriate shaft receiving parts 190.
Alternatively, it can be varied by fitting into 190A, so it can be adjusted to obtain the optimum tension. Therefore,
This means that the IP can be appropriately held and transported without leaving any scratches on the surface of the IP. Furthermore, the upper belt 51 covers the entire surface of the IP and moves to the photographing position, which will be described later.
Since the entire surface of P will be exposed to X-rays evenly,
The entire surface of the IP can be used as an effective area for imaging.

Therefore, the invalid area of the ml shadow on the surface of the IP is eliminated, and the wasted area of the IP can be eliminated.

I held between the upper belt 51 and the lower belt 52
The Pll is stopped at the center of the holder part 50 and moved to the imaging position tFIB. Here, IP
ll is detected by the position sensor 58 disposed at the bent portion 59 on the front side of the conveyance stage among the bent portions 59.59, and the conveyance front end or rear end of the IPll is detected, and the upper belt 51. Rotation information of the third motor M3, which is the drive source for the lower belt 531-2, is input from the O-Taryen]-der 117. Since the distance between the position sensor 58 and the upper stop position is known, it is necessary to drive the third motor M3 in order to reach the stop position after the transport tip of IPll passes through the position sensor 58. The number of pulses can be detected. Note that the position sensor 58 is an IP
The rear end of ll may also be detected. The second conveyance belt drive control section 206 controls the third motor M3 in order to accurately stop the IPll at the stop position as described above. After IPll is stopped at the central part of the holder part 50, the fifth motor M5 is driven under the control of the sliding drive control section 208 by pressing @Open (not shown), and the holder 1@50 is driven. to the initial position A shown in Figure 3.
The camera is then moved to the imaging position B, and X-ray imaging for IPll is performed. Furthermore, the shooting position IIB is IPll.
This is a case where the XwAfI shadow is applied to the entire area, and when performing divided imaging, the sliding members 181, 181 and the upper part.

Drive the lower belts 51 and 52 until the center of the dividing plane is 32- What is necessary is just to set it so that it may be located directly under the X-ray tube 2.

Note that the limit switch 184 detects that the holder portion 50 has reached the photographing position B.

Here, the sequence control unit 201 has a timer function that starts timing when the secondary erasure of the IP is completed and resets the timing when the wjA button is pressed. Therefore, if the exposure button is not pressed down even after a predetermined period of time (3 to 4 o'clock IP!1) has elapsed after the start of time measurement, the sliding member 181 is not moved to the photographing position B and the sequence proceeds to the next sequence. Control. As a result, it is avoided that X-ray imaging is performed on TPll, which is kept waiting at the initial position A for a long time, and the noise of the phosphor layer is large in proportion to this time. Therefore,
Clear images with less noise can be recorded. X
IPII for which line imaging has been completed or IPll for which a predetermined period of time has elapsed without being scanned is transferred to the second conveyor belt drive control unit 2.
06, the third motor M3 is started to drive, and the IPl
1 will be carried out to the storage section 60. The second conveyor belt drive control unit 206 continuously drives the third motor M3 when a flaw detection device @48 provided on the front side of the conveyor of the holder part 50 detects that there is a flaw in the IPll. Then, the IPII is stored in the storage section 60 without being stopped.
Transport to. As a result, no image is recorded on the scratched IPll, and images useful for diagnosis can be recorded at all times.

Next, the configuration, operation, and effects of the housing section 60 will be explained with reference to FIGS. 11 to 20.

First, the structure, function, and effects of the pickup magazine 65 will be explained. Figure 11(a).

(b) and (c) are plan views of the pickup magazine 65;
12(a) to 12.
FIG. (0) is a schematic explanatory diagram illustrating the shutter member 130 and the light shielding member 140. In the figure, the pick-up magazine 65 includes a box-shaped frame 120 that is removably disposed on the main body of the apparatus, and a shutter member 130 that is slid relative to the frame 120 to open and close an opening 120f, which will be described later. , and a light shielding member 140 that shields the moving path of the shutter member 130 from light. The frame body 12
0 is the front plate 120a, the back plate 120
b, Jz surface plate 120c, bottom surface plate 120d, and side plates 120e, 120e.

The front plate 120a of this frame 120 includes:
A shutter opening into which the shutter member 130 can be inserted and removed (
(not shown) are drilled therein. Further, a first lock bin 125 is provided at the lower end of this front plate 120a.
When the pick-up magazine 65 is installed in the main body of the device, the first pick-up pin 125 is locked to the main body of the device (see Fig. 11 (Ω)).
. Further, a part of the upper plate 120c of this frame 120 is cut out, and an opening 120 for taking in IPll is formed.
f is formed. The size of this opening 120f is
It is sufficiently larger than IPll, making it easy to take in IPll. Furthermore, a concave cutout 121 is provided on the inner wall of the top plate 120. The cutout portions 121 are provided at two locations along the sliding direction of the shutter member 130. It is composed of second notches 121A and 121B (see FIG. 12(e)). The opening 120f of the frame 120 is a housing portion that sequentially takes in and stacks the rpii one by one when the shutter member 130 is opened.
A guide 122 made of a flexible member with a large amount of deformation that comes into contact with the end surface of the TPII and restricts the movement of the IPll is erected on the bottom plate 120d of the TPII (see FIG. 11(a)).
), (b), (c)). Further, on the inner wall surfaces of the side plates 120e and 120e of the frame body 120, the shutter part q130 is formed of the upper plate 120C and a protruding piece 124 that is formed to protrude downward and opposite to the upper plate 120C. Guide groove 12 for the slide of
3 is provided. The shutter member 130 has one end of a flat plate bent at a right angle, a handle 131 is provided on the outer surface of the bent portion, and a second lock bin 132 is provided on the inner surface of the bent portion, and the shirt 36-taper member 130 is attached to the frame. When attached to the body 120, the second lock bin 132 is locked to the frame body 120 side. A light shielding plate 133 is attached to the lower surface of this shutter member 130. This light shielding plate 133 is attached to both ends of the shutter member 130 in the width direction intersecting the sliding direction.
B, 133B, and a wide portion 133A attached over the entire width direction.
(See figures (a >, (c), (d)). When the shutter member 130 is attached to the frame 120, the light shielding member 140 comes into contact with the light shielding plate 133 attached to the lower surface of the shutter member 130, and the shutter member 13
When 0 is removed from lllff, it engages with the notch 121 of the frame 120 and blocks the movement path of the shutter member 130 from light. This light shielding part 'N140 is
．． It consists of first and second light shielding members 140A and 140B provided opposite to the second notches 12IA and 121B, respectively. This first. Second light shielding member 14. OA,
140B is shown in FIG. 12 (e), (f), (Ol
k- As shown, the side plates 120e, 12
The fulcrum shafts 141A and 141B are suspended between the fulcrum shafts 141A and 141B, the light shielding plate 14.2.143 is rotatably supported by the fulcrum shaft 1=11A and 141B, and the light shielding plate 142.

143 in the direction of the arrow shown in FIG. 12(0).

The light shielding plate 142 has a curled portion 142A through which the fulcrum shaft 141Δ is inserted, and its free end is bent to form a bent portion 142B. Notches are provided to escape the narrow portions 133B, 133B. Further, the light shielding plate 143
Similarly, it has a curled portion 1713A and a bent portion 143B, and both ends of the bent portion 143B are not cut and are longer than the width of the shutter member 130. Further, one end of the springs 144A and 144B is engaged with the lower surface of the light shielding plates 142 and 143, respectively, and the other end is attached to a locking plate 1 that is erected on the bottom plate 120d of the frame body 120.
45A and 145B, respectively.

FIGS. 13(a) and 13(b) show the operation of the pick-up magazine 65 configured as described above.

(c) and (d) will be explained with reference to them. Before operating this X-ray diagnostic apparatus, first, an empty pickup magazine 65 is attached to the main body of the apparatus. Then, the shutter member 130 is further moved away from the frame 120 so that the spiral-shaped rPll can be taken in. In this state, the light shielding plate 142.14.3 is connected to the spring 144.
The bending portions 142B and 143B of the light shielding plate 112.143 are biased to rotate by the biasing forces of A and 14.4B.
is provided on the top plate 120C of the frame 120. It will be locked in the second notches 121A and 121B (see FIG. 13(a)).

Since the width of the bent portion 143A of the light shielding plate 143 is longer than the width of the moving path of the shutter member 130, even if the shutter member 130 is out of Nt, the light shielding plate 143 prevents the shutter member 130 from moving. 39- It is possible to prevent light leakage from the movement path of the object. Moreover, the bent portion 143Δ is a second cutout portion 121B that is lower than the top plate 120C.
Since it comes into contact with the contact point, light leakage can be reliably prevented from this contact point. Furthermore, the front plate 12
Since the first light shielding member 140A is provided between 0a and the second light shielding member 140B, double light shielding is performed over the width of the light shielding plate 142 of the first light shielding member 140A. It is possible to completely block light leakage to the IPlls loaded and housed inside.

Next, when the imaging operation of the X-ray diagnostic apparatus is started, the spiral-shaped IPlls are sequentially supplied one by one by the action of a pushing device, which will be described later. It will be loaded in the storage and loading section. At this time, the bottom plate 120d of the frame 120
Since a guide 122 that comes into contact with the end surface of the IPll is provided upright, the IPll is loaded in an aligned state within the pick-up magazine 65. Furthermore, since the loading position of the IPlls is regulated by the guide 122 in this way, it is possible to prevent the loaded IPlls from moving when the pick-up magazine 65 is taken out from the device body and transported. , the phosphor layer 11a of the IPll will not be damaged during transportation.

Next, the TPl loaded in the pick-up magazine 65 is
The operation when the pickup magazine 65 is taken out from the main body of the apparatus when the magazine 65 is full will be explained. Before taking out the pickup magazine 65 from the main body of the device, the frame 1
20 opening 120f is closed, and this opening 120 [
light leakage must be prevented. Therefore, the shutter member 130 is inserted through a shutter (not shown) provided on the front plate 120a of the frame 120, and is slid along the guide groove 123, so that the shutter member 130 opens the opening. At this time, the moving tip of the shutter member 130 first closes the first light shielding member 1/1 as shown in FIG. 13 (bi).
The light shielding plate 142 comes into contact with the IOA, rotates against the biasing force of the spring 144A, and is removed from the first notch 121A.

The light shielding plate 142 is a light shielding plate 133 attached to the lower surface of the shutter member 130, as shown in FIG.
Since both ends are cut away from the narrow portion 133B of the shutter member 1, the bent portion 142B of the light shielding plate 142
It comes into direct contact with the lower surface of 30. Therefore, light can be blocked over the range of contact between the bent portion 142B and the shutter member 130. Furthermore, a second light shielding member 140
Since B is still locked in the second notch 121B, it can cover the entire width of the shutter member 130 to block light. Therefore, the center portion in the width direction of the shutter member 130 is located at the first. Second light shielding members 140A, 140B
The light can be doubly blocked by the second light blocking member 140B on both ends thereof. Next, the 13th
As shown in Figure (C), the moving tip of the shutter member 130 comes into contact with the second light blocking member 140B,
The light shielding plate 143 is rotated against the biasing force of the light shielding plate 4B to be removed from the second notch 121B. And this light shielding plate 14
3 is in contact with the narrow portion 133B of the light shielding plate 133 attached to the lower surface of the shutter member 130.

Therefore, the central portion of the shutter member 130 in the width direction is
Light blocking can be ensured by the first light blocking member 140A, and both ends thereof can be blocked by the second light blocking member 140B. When the shutter member 130 is further slid, as shown in FIG.
It comes into contact with the wide portion 133A of 33. In this case, the central portion of the shutter member 130 in the width direction is the first. Second light shielding member 1/10A, 14. It is doubly light-shielded by the OB, and both ends thereof are covered with second light-shielding members 1/I.
r) [(The light shielding is ensured. In this way, complete light shielding can be achieved even during and after the sliding movement of the shutter member 130.
30 is completely inserted into the frame 120, the shutter member 130 will be locked to the frame 120 by the action of the second locking pin 132. Thereafter, the 43rd-1st lock bin 125 is unlocked, the pick-up magazine 65 is taken out from the main body of the apparatus, and the pick-up magazine 65 is transported for use in readout irradiation for photosensing. At this time, the movement of the IPll loaded in the frame 120 is regulated by the guide 122, so that it does not damage the phosphor layer 11a. Further, on the lower surface of the shutter member 130, light shielding plates 1 to 1 are provided.
33 is pasted, and this narrow part 133B allows IPll
Since the IPll does not protrude beyond the upper end of the guide 122, the IPll does not enter the guide groove 123 and interfere with the opening/closing operation of the shutter member 130.

Next, the structure and operation of the pushing device for pushing the photographed IP into the tick-up magazine will be explained with reference to FIGS. 14 to 20.

As shown in FIG. 14, the pushing device feeds the photographed IP along the presser plate 66 supported above the opening 120f of the pick-up magazine 65 and the lower 44- surface of the presser plate 66. Feeding mechanism section 63
and a suppressing mechanism section 67 that presses the upper surface of the holding plate 66 to push the photographed IP into the pickup magazine 65.

The presser plate 66 is a plate-shaped body having approximately the same size as the IP, and one end of the side closer to the feed mechanism section 63 (hereinafter referred to as the front side) is suspended by a support spring 68, and the feed mechanism The narrow end on the side far from the part 63 (hereinafter referred to as the rear side) is
It is supported by a composite support member 69 and is inclined downward as a whole from the front side to the rear side. The composite support member 69 is
A support plate 151 rotatably connected to the presser plate 66 at a fulcrum 150A, a guide frame 152 that holds the support plate 151 slidably in the vertical direction, and a guide frame 15.
Fixed frame 1 rotatably supports 2 at a fulcrum 150B
It consists of 53. A guide shaft 15 is attached to the support plate 151.
1a and guide roller 151b are arranged vertically in parallel,
The guide shaft 151a and the guide roller 151b are connected to a guide groove 152a bored in the guide frame 152.
The support plate 151 is fitted into the guide groove 152a so that the support plate 151 can move in the vertical direction. A torsion spring 154 is attached to the fulcrum 150B, and this torsion spring 15
The first spring 154a in the torsion spring 154 is in contact with the upper part of the guide shaft 151a, and the end of the spring 154a is latched to the upper part of a stopper 152tl protruding from the side surface of the guide frame 152. The second spring 154b is in contact with the lower part of the guide shaft 151a, and the end of the second spring 154b is locked to the lower part of the stopper 152b. With this stopper 152b,
When the guide shaft 151a is above the predetermined position, the first
Only the second spring 154a works to push the guide shaft 151a downward, and when the guide shaft 151a is below a predetermined position, only the second spring 154b works to push the guide shaft 151a upward. ing. The upper end of the guide frame 152 is connected to the fixed frame 153 by a spring 155.
55, the guide frame 1 is pushed forward by a bottle 152C protruding from the lower front side of the guide frame 152.
Power is punishing 52.

The suppression mechanism section 67 includes a drive shaft 156, a presser link 157 whose base end is attached to the drive shaft 156, and a seesaw portion 158 rotatably supported at the tip of the presser link 157 at a fulcrum 150C. , a first presser portion 159A and a second presser portion 159B protruding from both sides of the lower surface of the seesaw portion 158. The first holding portion 159A is located on the front side and is pressed against the upper surface of the holding plate 66 by a torsion spring 160A attached to the fulcrum 150C. On the other hand, the second presser portion 159B is located on the rear side and floats above the presser plate 66, which is inclined by the torsion spring 160A. As shown in FIG. 15, the drive shaft 156 has large and small sprockets 161Δ.

161B is integrally installed, and small sprocket 1~
161B has chain 162 and drive sprockets 1 to 16
The rotation of the fourth motor M4 is transmitted through the motor M3. Note that the rotational drive of the fourth motor M47-4 is controlled by the presser plate drive control section 207.

As shown in FIG. 16, the feed mechanism section 63 includes feed rollers 16 attached to positions corresponding to both ends of the IP in the width direction.
4,164, nip rollers 166°166 which are pressed against the feed rollers 164, 164 on both sides by pressing springs 165, 165, and feed rollers 164 on both sides.
．． 1671 and a corrugation roller 167 having a larger diameter than both feed date rollers 164. Both feed rollers 164, 164 and the rugation roller 167 are fixed to a drive shaft 168. The drive shaft 168 is supported by a frame 169 via a bearing 170, and rotation is transmitted via a sprocket 171 at the end. Nip roller 166.1
66 is attached to the support shaft 172 via bearings 173, and is attached to both ends of the support shaft 1720 (
18 due to the rotation of the feed roller 164.16/I pressed by the suppressing springs 165, 165
- The nip rollers 166, 166 are rotatable. In addition, as shown in FIG. 15, the support shaft 172 has a groove 17/Ia formed in a cam 174 that is one size larger, and a sprocket 175 is integrally attached to this cam 174. chain 17
The fourth motor M4 is connected to the large sprocket 161A via the fourth motor M4, and the rotational drive of the fourth motor M4 is transmitted to the cam 174. Then, the cam 1 rotates 40 times to overcome the pressing force of the suppression spring 165 and move the support shaft 172 in the opposite direction of the pressing force, thereby moving the nip roller 166 in the direction of arrow P in FIG.

In Fig. 1/'1, 70 indicates the filled I
This barcode reader 70 reads the barcode (not shown) written on P.
As shown in FIG. 17, one end is provided with a reading section 70a that reads the reading line on the barcode, and the other end is rotatably supported on a fixed frame 153A at a fulcrum 150D and twisted around the fulcrum 150D. Spring 160B is removed 4
The torsion spring 160B exerts a force that pushes the barcode reader 70 downward. An arm 173 having a presser roller 173a at its tip is provided on the front side of the barcode reader 70.
a presses the upper surface of the presser plate 66, and the barcode reader 70 and the presser plate 66 maintain a predetermined positional relationship.

Chapter 18 Regarding the operation of the pushing device configured as described above
The explanation will be given with reference to FIG. 20 as well.

When the pickup magazine 65 is not attached to the device, the composite support member 69 is tilted rearward by the spring 155, as shown in FIG. 18(a). Therefore, at this time, the presser plate 66 is placed above the position where the pick-up magazine 65 is set. Next, when the tick-up magazine 65 is inserted, the tick-up magazine 65 pushes the bin 152G of the guide frame 152, as shown in FIG. 18(a).
As shown in FIG. 18(b), the force of the spring 155 is overcome and the composite support member 69 stands straight. At this time, as the guide frame 152 rotates, the presser plate 66 tends to lower due to the force of the first spring 154a, but a shutter 65a (the shutter member 130) for blocking light is set in the pickup magazine 65. Therefore, the guide shaft 151a is connected to the first spring 15.
4a is overcome and the guide shaft 151a is pushed up. Next, when the shutter 658 is pulled out from the pickup magazine 65, the first spring 1
The guide shaft 151a returns to the predetermined position by the force 54a, and the rear side of the presser plate 66 enters inside the pickup magazine 65 as shown in FIG. 18(C). As a result, the tip of the IP fed out by the feeding mechanism section 63 can be reliably inserted into the back of the pickup magazine 65 using the presser plate 66 as a guide.
1- Kill. When handling the pickup magazine 65 from the device, it can be easily handled without getting caught on the holding plate 66 by reversing the process described above.

Passing through the drive belt 61 and drive roller 62, the feed roller 1
The IPll sent by 64 is shown in FIG. 19(a).
As shown in FIG. 2, the tip thereof is guided toward the end of the pickup magazine 65 along the presser plate 66. This is because, as shown in FIG. 16, the rigidity of the IPll in the transport direction is increased by corrugating the IPll with the corrugation []-ra 167. At this time, the feed roller 164 on the drive side is
Since the surface of the IP is in contact with the nip roller 166 on the driven side, there is no friction on the surface of the IP even if it slips when starting or stopping rotation, so a decoy image is recorded. It will not damage the IP coating surface. Note that if there is no rugation roller 167, the rigidity of the IP in the transport direction will not be strengthened, so the second
As shown at 52- in FIG. 0, the newly inserted IPll hangs down on the back surface of the IP already housed in the pick-up magazine 65 due to its own weight, and the surface of the IPll is rubbed.

Next, when the drive shaft 156 is rotated by the fourth motor M4, the presser link 157 is rotated as shown in FIG. 19(b).
rotates, and the first presser part 15 in the seesaw part 158
9A pushes the presser plate 66, overcomes the force of the support spring 68, and rotates the presser plate 66 about the fulcrum 150A. At this time, the cam 17 rotates in synchronization with the drive shaft 156.
4, the nip roller 166 moves in the direction of arrow P in the figure and retreats (see FIG. 15), so that the presser plate 66
By pushing l, the surface of the IPll will not be damaged by the nip roller 166. Then,
As shown in FIG. 19(C), when the drive shaft 156 is rotated in the direction of the arrow Q shown in the figure, the rear end of the IP
is pressed into the tick-up magazine 65 by.

Until this state is reached, the torsion spring 160A is attached to the fulcrum 150C rather than the support spring 68.
is stronger, so the seesaw portion 158 does not rotate and the presser plate 66 is pressed by the first presser portion 159A.

Next, when the drive shaft 156 is further rotated in the direction of the arrow Q shown in the figure, the torsion spring 16 is rotated as shown in FIG. 19(d).
0△, the seesaw portion 158 rotates, and not only the first presser portion 159A but also the second presser portion 159B presses the presser plate 6.
The -L surface of 6 is pressed, and the presser plate 66 is pressed by both presser parts 159A and 159B. Furthermore, drive shaft 1
When rotating 56, J: sea urchin shown in Figure 19(e),
Composite support member 6 stronger than the torsion spring 160A
Overcoming the two torsion springs 15411, the rear side of the presser plate 66 also comes down, and the presser plate 66 pushes the entire back side of the pH.

In this way, the holding plate 66 moves so as to gradually push the IP into the pickup magazine 65 from the rear end to the front end, thereby ensuring that the photographed IP is surrounded by the guide 122 in the pickup magazine 65. It can be stored in the enclosed storage and loading area without damaging the surface of the IP.

The barcode reader 70 rotates around the fulcrum 1500 as the presser plate 66 descends due to the force of the torsion spring 160B attached to the fulcrum 150D.
TP pushed into the tick-up magazine 65 by
Read the barcode written on the back of the ll to identify the correspondence between the decoy image data and the patient. At this time, since the arm 173 maintains a constant distance between the reading section 70a and the presser plate 66, the photographed IP is
Even if the barcodes are stacked one after another in the 5, the readable distance 71 between the reading unit Aa and the barcode written on the back of the IP located at the top is kept constant (see Figure 17).
Since the reading unit 70a can be positioned at the barcode reader 70, the barcode can be reliably read.

Furthermore, since the barcode reader 70 rotates and scans around the fulcrum 150D as the presser plate 66 moves, it is possible to change the reading line of the bar 55 code within the readable range 71 and read it multiple times. Even if there is small dust or dirt on one reading line and the barcode information is read incorrectly, the information can be read accurately using another reading line. In FIG. 17, 72 is a barcode label with a bar code written on it.

As described above, the pressing movement of the presser plate 66 and the nip roller 1
The three operations of the evacuation movement of the barcode reader 66 and the scanning movement of the barcode reader 70 can be reliably driven in synchronization using one fourth motor M4.
It can be loaded and stored reliably and smoothly without damaging the surface in a pick-up magazine 65 having an accommodation/loading part of almost the same size as the photographed IP, and the bar code can also be read accurately.

After the photographed IPll is completely stored in the pick-up magazine 65 by the presser plate 66, the presser plate part movement control section 207 drives the fourth motor M4 in reverse rotation to remove the photographed IPll from the drive shaft 156. - The attached presser link 157 rotates in the direction opposite to the direction of the arrow Q shown in the figure, and through a process opposite to the process described above, the presser plate 66, nip roller 166 and barcode reader 7 are removed.
0 returns to its original initial position, and the next photographed I
P is provided in the take-up magazine 65.

Finally, the overall operation of the apparatus according to the embodiment of the present invention will be briefly explained.

■P11 set in the feed magazine 12 with the front side facing down is taken out by the suction parts 13A and 13B of the takeout mechanism 15 by vacuum suction on the back side of the IP. Extracted IP
ll is 2 with the surface facing down by the delivery member 19.
Next, it is transported to the erasing section 20, at which time the light emitting lamp 22 emits light and the surface of the IP coat is irradiated with light, thereby erasing the noise of the IP. 1P11 with noise removed is
The outer belt 31 and the inner belt i that constitute the special equipment section 30
32, the tip of the IP11 is held and conveyed while changing the direction upward at the arc-shaped bent part, and the tip of the IP11 is connected to the standby sensor 3.
6, the IP is -H in the special equipment section 30.
stand by. After a predetermined period of time has elapsed, the IP that has been waiting is conveyed to the holder portion 50 through the light-shielding roller 42 while being guided by the guide plate 41 .

The IPll transported to a part of the holder is transported to a bent portion 59 at one end where the upper belt 51 and the lower belt 52 are bent into an arc shape.
The IP is conveyed while being held between both belts 51 and 52 while changing the conveyance direction so that the surface of the IP faces upward, and is stopped at a predetermined position by a position sensor 58. The IPll, which has stopped at a predetermined position, moves to the imaging position 11B, which is the position opposite the X-ray tube 2, by moving the entire holder part 50 toward the east side of the apparatus, and the xg+i Akira image transmitted through the subject is I 'Photographed on P 11. Ended IPll of pupil shadow
The entire holder portion 50 moves to the original initial position Δ, thereby returning to the original conveyance path.

Then, it is conveyed again while being held between the upper belt 51 and the lower bell 52, and is sent to the storage section 60 while changing direction downward at the arcuate bent portion 59 at the other end.

It should be noted that an IP for which a flaw is detected on the surface of the IPll by the flaw detection device 48 is transported to the storage section 60 as it is without being subjected to a recording operation.

The IPII sent to the storage section 60 is transferred to the drive belt 61
Then, the direction of the IP is reversed by the driving roller 62 and the IP is transported to the feed mechanism section 63 with the surface facing down. The IP that has passed through the feed mechanism section 63 is conveyed along the lower surface of the holding plate 66 to the rear side of the pick-up magazine 65, and then transferred to the suppression mechanism section 67.
The presser plate 66 moves downward due to the drive of the presser plate 6.
6 to press the entire back surface of the IP, and store the IP in the accommodation/loading section in the pick-up magazine 65 with the front surface facing down.

In this way, after a predetermined number of IPlls with ml shadows are stacked and stored in the pick-up magazine 65,
Light is shielded by closing the opening 120f of the pickup magazine 65 with the shutter member 130 (shutter 65a). After taking out the light-shielded tick-up magazine 65 from the device, it is inserted into another reading device, and the photographed IP stored in the magazine 59- is subjected to readout irradiation for photosensing.

Note that the present invention is not limited to the above embodiments,
Various modifications are possible within the scope of the invention.

In the embodiment described above, the timing is started from the time when the secondary erasure of the IP is completed, but the timing is not limited to this, for example, from the time when the IP is transported to the holder section 50, or from the time when the IP stops at the standby position. You may start timing from. However, in this case, there is a time lag between the secondary erasure and the start of time measurement, so the performance is slightly inferior. That is, since it is after the secondary erasing that there is a risk that noise may enter the IP, it is most preferable to set the time point at which the secondary erasing is completed as the time point at which time measurement starts.

[Effects of the Invention] As explained above, according to the present invention, when a stimulable phosphor sheet that has completed secondary erasing is kept at a standby position or a photographing position for a long time and no photographing is performed, the stimulable phosphor sheet is automatically It is possible to provide a radiation diagnostic apparatus 60 which can transport this stimulable phosphor sheet to a storage section. Therefore, radiography is not performed on a stimulable phosphor sheet on which noise has accumulated due to a long standby period before imaging, and images useful for diagnosis can be recorded at all times.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an X-ray diagnostic device that is an embodiment of the present invention, FIG. 2 is a schematic diagram of the internal structure of the spot shot device, FIG. 3 is a plan view of a part of the holder, and FIG. 4 is a block diagram schematically showing the control system, FIG. 5(a) is a schematic perspective view showing the take-out mechanism section of the supply section, FIG. 5(b) is a schematic perspective view without showing the take-out mechanism section and the delivery member, Figure 6(a),
(b). (C), Figure 7 is an explanatory diagram of the operation of the supply section, Figure 8 (a)
8(b) is an explanatory diagram showing the main parts of the light-shielding part, FIG. 8(b) is a sectional view thereof, FIG. 9 is an explanatory diagram schematically showing a part of the holder, and FIG. The perspective view shown in FIGS. 11(a), 11(b), and 11(c) are plan views of the storage magazine. 12(a) and 12(b) are plan views and front views of the shutter member; FIGS. 12(C) and 12(d) are sectional views taken along line A-A in FIG. 12; BB sectional view, Figure 12 (
e) is an enlarged view of the light shielding member, and FIGS. 12(f) and 12(o) are respectively the 1st. A schematic perspective view of the second light shielding member, FIG.
Figures a) to 13(d) are explanatory diagrams of the light shielding operation when the shutter member is opened and closed, Figure 14 is an explanatory diagram showing the schematic structure of the housing section, and Figure 15 is the interlocking relationship between the pressing mechanism section and the feeding mechanism section. FIG. 16 is an explanatory diagram showing the schematic configuration of the feeding mechanism section, FIG. 17 is a sectional view taken along the line A-A in FIG. 14, showing an outline of the reading operation of the barcode reader, and FIG. (a)
, (b) and (c) are explanatory diagrams showing the operation up to setting the tick-up magazine in the device, and Fig. 19 (a) and (b)
), (c), (d). (e) is an explanatory diagram showing the operation process up to pushing the phosphor sheet into the pickup magazine, and FIG. 20 is a comparative diagram showing the storage state of the phosphor sheet in the pickup magazine when there is no corrugation roller. . DESCRIPTION OF SYMBOLS 10... Supply unit, 11... Stimulable phosphor sheet, 50... Part of holder, 60...
...Storage section, 201... Drive control section. Figure 5 (b) 1 Figure 6 2 (b) JP-A-2010-241047 (21) Figure 8 (0) (b) Figure 13 (a) 21 (b) 44A Figure 13

Claims (1)

[Claims] The stimulable phosphor sheets for recording and reproducing radiation images are transported through a supply section that sequentially takes out and supplies them one by one, and a secondary erasing section that erases noise from the stimulable phosphor sheets taken out from this supply section. It has a part of the holder which is stopped at the imaging position for one month and is driven after radiography to convey the stimulable phosphor sheet to the destination, and a storage part which receives and stores the stimulable phosphor sheet from this part of the holder. In the radiological diagnostic apparatus, time measurement is started after the stimulable phosphor sheet passes through the secondary erasing section, and when a predetermined period of time has elapsed without radiography being performed, a part of the holder is driven and controlled to eliminate the stimulable phosphor sheet. A radiological diagnostic apparatus comprising: a drive control section that guides a body sheet to a storage section.