JPS60241043A - Radiation diagnostic device - Google Patents

Abstract

PURPOSE:To cut off light completely even at a large opening by providing an opening through which a storage fluorescent material sheet is taken in to a storage magazine, and then providing a shutter member which closes the opening part. CONSTITUTION:The shutter member 130 is inserted through a shutter opening provided to a front plate 120a and moved along a guide groove to close the opening 120f of a frame body 120 when the storage magazine is full of storage fluorescent material sheets. At this time, the front end of the shutter member 130 contacts a light shield member 140A to rotate the front end member 140A of a member 140 against the energizing force of a spring provided to the inflection part of the member 140. Similarly, the front end part of a light shield member 140B also rotates to engage the center notch part of a light shield plate 133 and then contact the member 130 directly, cutting off light. The front end part of the member 140A wider than the front end of the member 140A contacts a part where there is no notch throughout the overall width of the member 133 to cut off light completely.

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 frequency of inventions and their problems] Certain phosphors are exposed to radiation (X-rays, α-rays, β-rays.

When the phosphor is irradiated with Y-rays, external 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, it will react according to the accumulated energy. Therefore, 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 then scanned with excitation light to produce stimulated luminescence. A method has been proposed in which the image signal is read out to obtain an image signal, and the image signal is processed to obtain an image suitable for diagnosis.

This final image may be reproduced as a hard copy 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. ) has the property of being able to be reused approximately 1,000 times by performing photostimulation readout irradiation after radiography and reading out the recorded image, making it highly economical. , has come to be used in radiological diagnostic equipment.

Conventionally, the IPs on which radiation image information is recorded are sequentially 1
The sheets are stacked one by one and stored in a storage magazine, and when the storage magazine is full, the storage magazine is taken out and used for readout irradiation for photosensing. Once the image is recorded on the IP, complete light shielding is required, so when the storage magazine is taken out of the device and then transported, light leaks to the internal IP. It has a structure that looks like it doesn't exist.

By the way, when the accommodation magazine is transported, the IP loaded therein must not move and cause damage to the phosphor layer. For this purpose, it is necessary to make the size of the accommodation portion of the accommodation magazine equal to the size of the IP and to reduce the allowable movement of the IP.

However, if the size of the accommodating portion is made equal to the size of the IP as described above, an opening large enough to take in the IP must be provided. Conventionally, it has been difficult to completely shield the large opening from light, so no consideration has been taken to restrict the movement of the IP within the storage magazine.

[Objective of the Invention] The present invention has been made in view of the above circumstances, and it provides a large opening that can easily take in the IP in a housing portion of the same size as the IP, while completely blocking light. It is an object of the present invention to provide a radiological diagnostic apparatus equipped with a storage magazine that can be used for various purposes.

[Summary of the Invention] The outline of the present invention for achieving the above object is that radiation [=
In a radiological diagnostic apparatus, a storage magazine for storing and storing phosphor sheets for storage of radiographic images used for recording and reproducing radiation images is removably arranged. a frame body that serves as an opening for taking in the stimulable phosphor sheet and has a concave notch in the inner wall of the upper surface; and a frame body that is slid against the inner wall of the upper surface of the frame body to form the opening. a removable shutter member that closes the shutter, and when the shutter member is installed, it contacts the lower surface of the shutter member, and when the shutter member is removed, it contacts the notch of the frame body. The light shielding member is biased to engage with the light shielding member to shield light.

[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. 2 is roughly divided into a supply unit 10 that takes out and supplies an image plate (hereinafter abbreviated as IP) 11, a secondary erasing unit 20 that erases the noise of the extracted IPII, and a Erased IPI
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; Holder part 50 to hold and photographed 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 IPlls are stacked and set, and a feed magazine 12 in which IPlls are stacked and set, and
A pair of suction parts 13A arranged above the feed magazine 12 and for taking out TPII one by one from inside the feed magazine 12.
, 13B and a vacuum pump 14.
and a delivery member 19 that guides the IPll taken out by the takeout mechanism section 15 in the transport direction. Further, the secondary erasing unit 20 includes a secondary erasing device 23 having a light emitting lamp 22 that irradiates light when the IPll sent out from the sending member 19 passes above.

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

The light shielding section 40 includes a guide 41, a light shielding roller 42, and a light shielding plate 4.
3a and 4-3b, and 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 driven by a third motor M3 (details will be described later), and a third sensor is installed in the middle of the conveyance of both belts 51 and 52. A position sensor 58 is arranged. Further, as shown in FIG. 3, this holder portion 50 is movable along guide shafts 182, 182 in the direction of the arrow shown in the drawing (direction from the front surface to the back surface in FIG. 2), so that the holder portion 50 The 1P11 held between the parts 50 is moved from the initial position A to the photographing position B.

Note that above the imaging position B is the top plate 3 on which the patient is placed.
and an X-ray tube 2 are arranged, and the image system 5 is arranged below the imaging position B. And IPll
On the other hand, after the photographing is completed, the holder part 50 is returned to the initial position and the IPll is delivered to the storage section 60. In addition, in FIG. 3, the limit switch 183 is a switch that detects that the holder part 50 has returned to the initial position A, and the limit switch 184
is a switch that detects that the holder portion 50 has reached the photographing position B. Note that the means for detecting the arrival at the photographing position 8-B may be a rotary encoder that detects the rotational output of a fifth motor M5, which will be described later.

The storage section 60 includes drive bells 1 to 61 for transporting photographed IPlls, a driving roller 62 in close contact with the driving belt 61, a feeding mechanism section 63, and a take-up magazine 65 for storing photographed IPlls. It is comprised of a presser plate 66 supported above the pick-up magazine 65, a suppressing mechanism section 67 for pushing the IPII into the pick-up magazine 65, and a barcode reader 70 for reading the barcode of the IPII.

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,
13B, and a pair of suction parts 13
The first motor M1 in the takeout machine #1 group 15 is reversibly rotated based on the output signal of a first sensor (details will be described later) 116 that detects the positions of A and 13B. Further, the vacuum pump control section 203 controls the pair of adsorption sections 13.
It controls the driving of the vacuum pump 14 that executes the IPII adsorption operation at A and 13B. The lamp control unit 204 controls the secondary eraser 23 in the secondary eraser 20.
This is to feedback control the effective current of. 1st
The conveyor belt drive control unit 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 inner belt 32 is controlled. When receiving IPll 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, The drive is stopped based on the output signal of sensor 2) 36. after that,
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 controls the upper belt 51 and the lower belt 52 in the holder part 5o.
It is used to drive and control the That is, the third motor M
3 to control the transport and stop of the IPll in the holder part 50. This second conveyance belt drive control unit 206 inputs the position information of the conveyance tip of the IPII during conveyance from the position sensor 58 as the third sensor,
Rotation information from a rotary encoder 117 fixed to the motor shaft of the third motor M3 is input, and based on these inputs, the third motor M3 is controlled to stop Iρ11 at a predetermined photographing position. It has become. 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
is supplied and conveyed to the storage section 60. Also,
When the flaw detection device 48 detects a flaw on the surface of the IPll, the second conveyor belt drive control unit 2-06 guides the IPll to the storage unit 60 without stopping it at the photographing position 11-. The third motor M3 is driven and controlled in this manner. Furthermore, the housing section 60
The drive belt 61 and the feed mechanism section 63 are driven by a sixth motor (not shown). The sliding drive control unit 208 controls the sliding member 181 in the boulder part 50.
．． The fifth motor M5, which is the driving means of the motor 181, is driven and controlled. This sliding drive control unit 208 drives the holder part 50 from the initial position A to the imaging position B when a firing button (not shown) is pressed, and after X-ray exposure is performed, the holder part 50 is returned to the initial position A. Note that the sliding drive control unit 208 performs Xmm shooting after detecting that the IPll has reached the photographing position based on the output of the limit switch 184,
When the Xmm shot is completed, the holder portion 50 is returned to the initial fourth position. Presser plate drive control section 20
7 controls the reversible rotation of the fourth motor M4 which is a driving means of the pressing mechanism section 67 in the storage section 60, and by controlling the fourth motor M4 to drive -12= the presser plate. 66, scanning of the barcode reader 70, and retracting of the nip roller 63.

Next, the configuration, operation, and effects of the supply section 10 will be explained with reference to FIGS. 5 to 7. The IPII stacked in the feed magazine 12 are stored with the phosphor layer (hereinafter also referred to as the surface) 11a facing downward, as shown in FIG. The extraction mechanism section 15 that sequentially takes out the IP1'1 one by one is shown in FIG. 5(a).
It is configured as shown in . That is, the rectangular frame 10
The pair of suction parts 13A and 13B are attached to the four corners of the 0. The pair of suction parts 13A are located at the tip side in the direction of taking out the ■P11 stored in the feed magazine 12.
a suction pad 13a that suctions both ends of the PLL in the width direction;
13a, and the vacuum pump 14 is connected to each of the suction pads 13a, 13a. Also,
The pair of suction parts 13B are provided with suction pads 13b, 13b that suction both ends in the width direction of the IPll at the central part along the take-out direction of the IP11, and the suction pads 13b, 13b are equipped with the vacuum pump, respectively. 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 connected to the suction pad 13a.
, 13a is provided with a suction pad 16a at a position protruding vertically downward from the suction surfaces of the suction surfaces of the suction surfaces of the suction pads 13a, and a vacuum pump 14 is connected to this suction pad 16a. Also, between the suction bat support 18 and the frame 100, a spring 17 is provided.
is inserted, and constantly urges the suction pad 16a downward. Incidentally, the suction and release of the vacuum pump 14 are controlled by the vacuum pump control section 203 which receives an operation command from the sequence control section 201. The frame 100 has a frame support rod 101 fixed thereto. Bearings 102, 102 are attached to both ends of this frame support rod 101. Then, the frame support rod 1 is
Long hole-shaped guide groove 103.103 that guides the movement of 01
is bored in the frame (not shown). As shown in FIG. 2, the guide grooves 103, 103 are a pair of suction portions 13A.

13B and the corrugation member 16 are formed to lead to the lowest layer of IPII 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. This drive shaft 107 has first link plates 104, 104 fixed to both ends thereof, while the frame support rod 101 has second link plates 106 fixed to both ends thereof.
．． 106 and this first link plate 104.
104 and a second link plate 106° 106 are rotatably connected via fulcrums 105 and 105, respectively. The drive shaft 107 has a driven sprocket 108 fixed to one end thereof, and the driven sprocket 108
The reversible rotational force of the first motor Mi is transmitted via the drive sprocket 1015-9 and the chain 110. The first motor M1 is driven by the first sensor 116 (not shown) disposed near the take-out mechanism section 15 to drive the pair of suction sections 13A.

13B is detected, the forward rotational drive is stopped based on the control of the suction unit drive control unit 202, and then, after a predetermined period of time has elapsed, the reverse rotational drive is started.

As shown in FIG. 5(b), the delivery member 19
It consists of a pair of rollers 111 and 111 attached to positions corresponding to both ends of the IPll in the width direction, and a corrugation roller 112 attached to a position corresponding to the center of the widthwise direction of the IPll. The roller pair 111.111 is the drive shaft 1
Drive rollers 111a and 1lla fixed to both ends of 13
, an idle roller 1111 which is rotatably attached to the support shaft 114 and comes into contact with the drive rollers 111a, 111b, and a coil spring 115 which is attached between the drive shaft 113 and the support shaft 114.
It consists of. Further, the rotation roller 112 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, IP
In order to take out ll, the first motor M1 is rotated forward,
Drive shaft 107. 1st. Second link plate 104,1
05, the frame support rod 101 is driven to move downward along the guide groove 103. When the frame 100 is moved downward together with the movement of the frame support rod 101, the suction pad 16a of the rugoshimin member 16 is first moved to the non-fluorescent surface (also referred to as the back surface) of the IPll.
come into contact with. Note that since the corrugation member 16 is attached with the coil spring 17 interposed, the frame 100
can be moved further down. When the frame body 100 is moved further downward, all T(7) suction pads 13a, 13a
, 13b , 13b .

16a comes into contact with the non-fluorescent surface of IPll, and at this position the forward rotation 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 in which the IPll is taken out, and the suction pads 13a, 13a, and 16a are at the same surface height when the IPll is removed.
is in contact with l. Here, the vacuum pump 14 is driven to adsorb IPll. In addition, the suction bat 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 are raised, and the suction pad 16a of the corrugation 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 width direction of IPll, Figure 6 (
As shown in b), only both ends of the TPll in the middle direction are separated from other IPlls, and the central portion is projected downward by the corrugation member 16. That is,
The IPll is formed in a wavy state in the width direction, and this undulation occurs throughout the lengthwise direction (direction along the extraction direction) of the rPll. In particular, this effect is remarkable because the suction pads 13b, 13b are suctioning both ends of the IPll in the width direction even in the central portion of the IPll in the longitudinal direction. In this way, by forming the Pll in a wavy shape in the width direction, the section modulus of the IPll becomes large, and sag does not occur when the IPll is separated and moved.

Therefore, even if the frame body 100 is further lifted upward, the adsorbed IPll is 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, other excellent effects 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, contact with the other IPll can be completely cut off, and it is possible to completely prevent two IPlls from being taken out due to pseudo adsorption caused by static electricity, etc. can.

In this way, the 1
The pieces of IPll are supplied to the delivery member 19 by moving the frame 100 along the guide groove 103. The tip of the IPII in the take-out direction is the drive roller 11
1a, 111a and the idle rollers 111b, 111b, the urging force of the coil spring 115 causes the drive roller 111a and the idle roller 11 to
The IPll sandwiched between the drive roller 111 and the drive roller 111
It will be sent to the destination by receiving the conveying force of a (7th
(see figure). At this time, when transferring rP11 to the delivery member 19, the pair of suction parts 13A, 13'B, the corrugation member 16. Alternatively, slipping may occur between the delivery member 19 and the IPII. However, when the non-fluorescent surface of the IPll is attracted and transferred, the driving rollers 111a, 111a and the IPll
Since the non-phosphor surface side of the phosphor layer 11a is brought into contact with the phosphor layer 11a, the phosphor layer 11a is not scratched.

Further, since a corrugation roller 112 is disposed on the delivery member 19 at a position corresponding to the widthwise center of the IPll, the IPll, which has been corrugated by the corrugation member 16, is corrugated again by the corrugation roller 112. A shape will be formed (see Figure 7).

For this reason, the leading end side of the IPll in the take-out direction after passing through the sending member 19 is sent out without sagging, and the secondary erasing in the subsequent stage and the 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 achieve complete secondary erasure while keeping the brightness and color temperature of the light-emitting lamp 22 constant, 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 and 34b. The outer belt 31 and the inner belt 32 are stretched so that the lower ends on the side of the secondary eraser 20 are bent in an arc shape toward the secondary eraser 23 side along the arc-shaped guide piece 37. There is.

The length of the part where the outer belt 31 and the inner belt 32 that form the special part 30 are joined to each other is approximately the same as the length of the IP. In addition, the outer belt 31 and the inner bell 1-3
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 the standby sensor 36, the drive of the drive drums 33a, 33b, and 348.34b is stopped. Further, upon receiving a signal indicating that the previous IP in the holder part 50 has returned from the imaging site to its original position and has been transferred to the storage section 60, the drive drums 33a, 33b, and 34
Driving of a and 34b is started again.

In addition, 35 is the outer belt 31 and the inner belt 3 which are stretched.
This is a driven drum that applies a tension of approximately 2 degrees.

Since the special equipment section 30 has the above-described configuration, the IPll from which noise has been eliminated is conveyed while being pinched by the outer belt 31 and the inner belt 32 while changing direction at the circular arc-shaped bent portion, and the leading end of the IPll is transferred to the standby sensor 36. When you reach the
The driving of both the outer and inner belts 31 and 32 is stopped by a signal from the standby sensor 36 to 23-, and the IP 11 temporarily stands by in the special equipment section 30. Both outer and inner belts 31 and 32 have stopped driving.
starts driving again in response to a signal indicating that the previous IP in the holder part 50 has been photographed and has been transferred to the storage section 60.
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, since the noise-eliminated IPll is always on standby in front of the holder part 50, which is the imaging position, continuous xm imaging can be performed quickly and smoothly, reducing the imaging cycle time. becomes possible. This is because in the conventional transport route, the film before and after shooting used part of the same transport route.
Although it was not possible to provide a special equipment section as described above,
In the present invention, since the IPs before and after photographing are configured to pass through separate conveyance paths, a special equipment section 30 such as 24- mentioned above is provided on the conveyance path between the secondary erasing section 20 and the holder part 50. It is possible to set one.

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, a light shielding roller 42 that is disposed in close contact with the guide plate 41, and a light shielding plate that abuts the guide plate 41 and the light shielding roller 42, respectively. 43a and 43b. As shown in FIGS. 8(a) and 8(b), the light-shielding roller 42 is formed by attaching a flexible member 42b made of foamed plastic (for example, urethane foam) with a large amount of deformation around the roller 42a, and a bearing 44. through shaft 4
5, it is rotatably supported. The flexible member 42b that covers the surface of the light-shielding roller 42 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 42a rotates. A sheet member 47 that is wear-resistant and has a low coefficient of friction is attached. Further, the light shielding plates 43a, 4
3b is arranged so as to block light from areas other than the transport path of the IPll. A flaw detection device 48 is arranged near the light shielding roller 42 to detect flaws on the surface of the P11 that has passed through the light shielding roller 42.

Since the light-shielding unit 40 has the above-described configuration, the IPll that has been transported after secondary erasing 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. 42 is a holder part 50 which rotates according to the transport speed of the IP and 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 surface of the light-shielding roller 42 is not damaged when the IPll passes through the light-shielding roller 42. In addition, since the flexible member 42b is formed 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. Therefore, even while the IPll is being transported, the light from the secondary erasing section 20 can be completely blocked, and the photographed 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 IPll, and a third belt.
The upper belt 51 and the lower belt 52 are driven by the motor M3 of
drive rollers 53a, 53b, and 54a, 54b that rotate synchronously in one direction (in the direction of the arrow in the figure); and an arc-shaped guide member 55 that bends both ends of the upper belt 51 and the lower belt 52 downward in an arc shape. , a tension roller 56a installed near the guide member 55 and in contact with the upper belt 51 or the lower belt 52, respectively;
5.6b, 57a, and 57b. 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, and as shown in FIG. There is. 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 belt 52 is composed of four width belts, and these four width belts are driven at the same speed by drive rollers 54a and 54b.

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 IP, and the front and rear ends of the IP can be held between the two-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 that can change the position of the shaft in the direction of increasing or decreasing the tension of the belt at 28-
are arranged side by side. Each tension roller whose shaft is fitted into the bearing part 190 is operated by an operation lever (not shown) to fit the shaft into another bearing part 190A, and the upper belt 51
Alternatively, the tension of each belt in the lower belt 52 can be adjusted. The tension of this belt can be adjusted by
The optimum tension may be detected in advance and controlled to be automatically varied to that tension.

The drive rollers 53a, 53b, 54a, 54b
is 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
Surrounding members 181, 181 are fixed to both end sides of. The sliding member 181.181 is 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 and 54b are rotated to sandwich and convey the IPll 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 IPll reach the bent portions 59 and 59 at both ends, as will be described later, T
PI i stops, but at this time, since tension is applied at the double-layer bending portion 59.59, IPII conveyed by both upper and lower belts 51.52 stops accurately at a predetermined stop position. and its position will not shift. Therefore, the IPll stopped at this predetermined stop position is
This means that it is possible to move to a predetermined photographing position, which will be described later, without causing positional deviation. Further, each bell 1 to 1 in the upper belt 51 and lower belt 52 that hold the IPll is
The tension is applied to the tension roller 56a.

The shafts of 56b, 57a, and 57b are connected to appropriate shaft receiving portions 19.
It can be changed by fitting into 0 or 190A, so
Can be adjusted to obtain optimal tension. Therefore, the IP can be appropriately held and transported without damaging 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, there is no invalid area for imaging on the surface of the IP, and it is possible to eliminate unnecessary areas of the IP.

I held between the upper belt 51 and the lower belt 52
The Pll is temporarily stopped at the central portion of the holder part 50 and then moved to the photographing position B. Here, the IPll is detected by the position sensor 58 disposed at the bending part 59 on the front stage side of the conveyance among the bending parts 59.59.
Pll's conveyance leading end or trailing end is detected, and upper belt 51. A third motor M that is a driving source for the lower belt 52
The rotation information of No. 3 is input from the rotary engine 117. Since the distance between the position sensor 58 and the stop position is known, the third motor M is activated in order to reach the stop position after the transport tip of the IPll passes through the position sensor 58.
The number of pulses required to drive 3 can be detected. Note that the position sensor 58 may be configured to detect the rear end of IPll. 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. IPll holder part 50
After the holder part 50 is stopped at the central part of FIG. It is moved from the initial position to the imaging position B32-, and X-ray imaging for IPll is executed. Furthermore, the shooting position B is x with respect to the entire IPll.
In the case of i-photography, and in the case of divisional photography, the sliding member 181, 181 and the upper part.

The lower belts 51 and 52 may be driven to position the center of the dividing plane directly below 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 counting when the secondary erasure of ]P is completed and resets the timing when the exposure button is pressed. Therefore, if the exposure button is not pressed down even after a predetermined period of time (3 to 4 hours) has elapsed after the start of time measurement, the sliding member 181 is not moved to the photographing position B and control is performed to proceed to the next sequence. As a result, X-ray imaging will not be performed on IPll, which is kept waiting at the initial position A for a long time and has a large noise in the phosphor layer proportional to this time. Therefore, clear images with less noise can be recorded. xi @ For IPlls whose shadows have been completed or for which a predetermined period of time has elapsed without being photographed, the second conveyor belt drive control unit 206 starts driving the third motor M3 and transports the IPlls to the storage unit 60. I will do it. When the flaw detection device 48 provided on the front side of the conveyance side of the holder part 50 detects that there is a flaw in the IPll, the second conveyor belt drive control unit 206 continuously performs the third seven-to-three M3. Drive that IPll
is carried out to the storage section 60 without being stopped at the stop position.

As a result, no image is recorded on the scratched IPll, and it becomes possible to always record images that are useful for diagnosis.

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 1.
Figure 2 ((+> indicates the shutter member 130 and the light shielding member 14
FIG. 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 12Of, 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 120 includes a front plate 120a, a back plate 120b, a top plate 120C, and a bottom plate 120.
d and side plates 120e, 120e. The front plate 120a of the frame 120 is provided with a shutter opening (not shown) through which the shutter member 130 can be inserted and removed. Further, a first lock bin 125 is provided at the lower end of this front plate 120a, and when the pick-up magazine 65 is attached to the main body of the apparatus, the first lock bin 125 is locked to the main body of the apparatus. (See Figure 11 (C))
. Further, a part of the upper plate 1200 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 sufficiently larger than IPll, so that IPll can be taken in easily. Furthermore, a concave cutout 121 is provided on the inner wall of the top plate 120. The notches 121 are provided at two locations along the sliding direction of the shutter member 130. second notch 121A,
121B (see Figure 12(e))
. The opening 120f of the frame 120 is a housing portion that sequentially takes in and stacks IPlls one by one when the shutter member 130 is opened.
On the bottom plate 120d of the frame 120 facing 0r, a guide 122 made of a flexible member with a large amount of deformation that comes into contact with the end face of the IPll and restricts the movement of the IPll is provided (FIG. 11(a)). , (b), (c)). Further, side plates 120e, 120 of the frame 120
On the inner wall surface of e, there is a guide groove 123 for sliding the shirt 36-taper member 130, which is made up of the upper plate 1200 and a protruding piece 124 that is formed to protrude downwardly from the upper plate 120C. It 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 13 is provided on the inner surface of the bent portion.
2 is provided, and this shutter member 130 is connected to the frame 120.
When attached to the frame body 1, this second lock bin 132 is attached to the frame body 1.
It is designed to be locked to the 20 side. A light shielding plate 133 is attached to the lower surface of this shutter member 130. This light shielding plate 133 has narrow portions 133B, 133B attached to both ends in the width direction intersecting the sliding direction of the shutter member 130, and a wide portion 133A attached over the entire width direction. It has a U-shape (see Fig. 12 (a), (c), and (d)). The light shielding member 140 is the shutter member 13
0 is attached to the frame 120, the shutter member 13
0 comes into contact with the light shielding plate 133 attached to the lower surface of the
When the shutter member 130 is detached, the frame body 12
It engages with the notch 121 of 0 and blocks light from the moving path of the shutter member 130. This light shielding member 140 is
Said 1st. First and second light shielding members 140A and 1 provided opposite to the second notches 121A and 121B, respectively.
It consists of 40B. This first. Second light shielding member 14
0A, 140B are shown in Fig. 12(e), <f), ((
+ As shown in D, the side plates 120e, 12
The fulcrum shafts 141A and 141B suspended between the fulcrum shafts 141A and 141B, the light shielding plates 142 and 143 rotatably supported by the fulcrum shafts 141Δ and 141B, and the light shielding plates 142 and 143 are
Figure 2(e) Spring 144A biasing in the direction of the arrow shown in the figure
, 144B.

The light-shielding plate 142 has a curled portion 142A through which the fulcrum shaft 141A is inserted, and the tip on the free end side 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 has a curled portion 143A and a bent portion 143B,
Both ends of this 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 respectively locked to the lower surface of the light shielding plate 142 and 143, and the thin end thereof is connected to the frame body 1.
A locking plate 145 erected on the bottom plate 120d of No. 20
A 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 removed from the frame 120 and the photographed I
Leave PII in a state where it can be imported. In this state, the light shielding plates 142 and 143 are connected to the springs 144A and 1.
Rotationally biased by the biasing force of 44B, the light shielding plates 142,
The bent portions 142B and 143B of the first frame 143 are 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)).

39- 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 detached, the light shielding plate 143 will prevent the shutter member 130 from moving. It is possible to prevent light from leaking from the movement path of 130. Moreover, the bent part 1
43A comes into contact with the second notch 121B which is one step lower than the top plate 120C, so that light leakage can be reliably prevented from this contact point. moreover,
Front plate 120a and the second light shielding member 140
Since the first light shielding member 140A is provided between the first light shielding member 140A and the light shielding plate 142, it is possible to double light shielding 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 IPll.

Next, when the imaging operation of the X-ray diagnostic apparatus is started, the imaged IPlls are sequentially supplied one by one by the action of a pushing device, which will be described later, and the pickup magazine 65 is accommodated through the opening 120f of the frame 120. It will be loaded into the loading area. At this time, since a guide 122 that comes into contact with the end surface of the IPll is erected on the bottom plate 120d of the 40-frame body 120, the IPll is loaded in an aligned state within the pick-up magazine 65. In addition, in this way, the guide 122
Since the loading position of ll is regulated, when the pick-up magazine 65 is taken out from the device body and transported,
The loaded IPII can be prevented from moving, and the phosphor layer 11a of the IPII will not be damaged during transportation.

Next, the IPl loaded in the pickup 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 openings 120f are closed, and this opening 120f is closed.
light leakage must be prevented. Therefore, the shutter member 130 is inserted through a shutter opening (not shown) provided in 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 120f. will be closed. At this time, the moving tip of the shutter member 130 first moves toward the first light shielding member 140, as shown in FIG. 13(b).
A, the light shielding plate 142 is rotated 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. 12(f).
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 engaged with the second notch 121B, light can be blocked over the entire width of the shutter member 130. 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 shielding member 1/IOB, and
The light shielding plate 143 is rotated against the biasing force of the light shielding plate 44B and is removed from the second notch 121B. And this light shielding plate 1
43 comes into 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.
Light shielding member 140Δ, 14. OB is both light shielding plate 1
330 will come into contact with the wide portion 133A. In this case, the central portion of the shutter member 130 in the width direction is the first. The second light shielding members 140A and 140B provide double light shielding, and the second light shielding members 140B ensure light shielding on both ends thereof. In this way, the shutter member 13
No. 0 43 - Complete light shielding can be achieved even during and after the light is moved. When the shutter member 130 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 first lock bin 125 is unlocked, the tick-up magazine 65 is taken out from the main body of the apparatus, and the tick-up magazine 65 is transported for use in readout irradiation for photosensing. In addition, at this time, frame 1
The IPll loaded in the guide 122
Since the movement is regulated by the phosphor layer 11a, the phosphor layer 11a is not damaged. Further, a light shielding plate 133 is attached to the lower surface of the shutter member 130, and this narrow portion 133
Since the IPll does not protrude beyond the upper end of the guide 122 due to B, 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 includes a presser plate 66 supported above the opening 12Of in the pick-up magazine 65, and a feeder for feeding the photographed I'P along the lower surface of the presser plate 66. Press the mechanism section 63 and the upper surface of the holding plate 66 to transfer the photographed IP to the tick-up magazine 6.
5, and a suppression mechanism section 67 that is pushed into the inside of the structure.

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 is attached to the feed mechanism section 63. The other end on the far side (hereinafter referred to as the rear side) 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 includes 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 152 connected to the fulcrum 150B. A fixed frame 153 rotatably supported by
It consists of. The support plate 151 has a guide shaft 151a.
and guide rollers 151b are arranged vertically in parallel, and the guide shaft 151a and guide roller 151b fit into a guide groove 152a bored in the guide frame 152, and the support plate 151 is fitted along the guide groove 152a. is movable up and down. A torsion spring 154 is attached to the fulcrum 150B, and the first spring 154a of this torsion spring 154 is in contact with the upper part of the guide shaft 151a, and the end of the spring 154a is attached to the guide frame 1.
The second spring 1 of the torsion spring 154
54b is in contact with the lower part of the guide shaft 151a, and the end of the spring 154b is locked to the lower part of the stopper 152b. Due to this stopper 152b, when the guide shaft 151a is above a predetermined position, only the first spring 154a works to push the guide shaft 151 downward, and when the guide shaft 151a is below the predetermined position, the first spring 154a acts to push the guide shaft 151 downward. Only the second spring 154b works to move the guide shaft 151.
It is designed to push a upward. The upper end of the guide frame 152 is connected to the fixed frame 153 by a spring 155, and the spring 155 applies a force to the guide frame 152 in the direction of pushing it forward with a bin 152C protruding from the lower front side of the guide frame 152. ing.

The pressing 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 161A.

161B is integrally installed, and small sprocket 1
The rotation of the fourth motor M4 is transmitted to the motor 61B via a chain 162 and a drive sprocket 163. Note that the fourth motor M4 is connected to the presser plate drive control section 20.
Rotation drive is controlled by 7.

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.
．． 164 and a corrugation roller 167 having a diameter larger than that of the D two feed rollers 164. Both feed rollers 164, 164 and corrugation 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 to the drive shaft 168 via a sprocket 171 at the end. The nip rollers 166 and 166 are connected to the support shaft 17
2 via a bearing 173, and a pressing spring 1 attached to both ends of the support shaft 172.
65. Feed roller 164 being pressed by 165
, 164, the nip rollers 166, 166
is rotatable. Further, as shown in FIG. 15, a groove 174a formed in a cam 174 is fitted into the support shaft 172, and a sprocket 175 is integrally provided on this cam 174.
is the large sprocket 1 mentioned above via the chain 176.
61A, and the rotational drive of the fourth motor M4 is transmitted to the cam 174. and cam 1
The rotation of 74 overcomes the pressing force of the pressing spring 165, moves the support shaft 172 in the opposite direction of the pressing force, and moves the nip roller 166 in the direction of arrow P in FIG.

In Fig. 14, 7o indicates photographed (7) 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 in the barcode, and the other end is rotatably supported on a fixed frame 153A at a fulcrum 150D, and a torsion spring 160B is attached to the fulcrum 150D. is attached, and its 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. The arm 173 has a presser roller 173a at its tip.
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 set in 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 inserting the tick-up magazine 65,
As shown in FIG. 18(a), the pick-up magazine 65 pushes the bin 152C of the guide frame 152, and as shown in FIG. 18(b), the composite support member 69 is straightened by overcoming the force of the spring 155. Be in a standing position. 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 154.
The guide shaft 151a is pushed up by overcoming the force a. Next, when the shutter 658 is pulled out from the take-up magazine 65, the first spring 154
The guide shaft 151a returns to the predetermined position by the force a,
As shown in FIG. 18(C), the rear side of the presser plate 66 is
It will enter inside the pickup magazine 65. As a result, the IP sent out by the sending mechanism section 63
The tip can be reliably inserted into the back of the pick-up magazine 65 using the presser plate 66 as a guide. It should be noted that when pulling out the pickup magazine 65 from the device, it can be easily pulled out without getting caught on the holding plate 66 by performing the reverse process as described above.

Passing through the drive belt 61 and drive roller 62, the feed roller 1
As shown in FIG. 19(a), the tip of the IPll sent out by 64 is guided toward the back of the pick-up magazine 65 along the holding plate 66. Because the first
This is because, as shown in FIG. 6, by corrugating the IPll with the corrugation roller 167, the rigidity of the IPll in the transport direction is increased. At this time, the feed roller 164 on the driving side is IPll
Since the surface of the IP is in contact with the nip roller 166 on the driven side, even if the 52 slips at the start of one revolution or when it stops, there will be no friction on the surface of the IP, so the photographed image will not be recorded. The IP coating will not scratch the surface. In addition, the corrugation roller 1
If there is no 67, the rigidity of )P in the transport direction will not be strengthened, and as shown in FIG. This means that the IPII that is exposed is hanging down and its surface is being 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 the arrow P shown 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 TPO is moved toward the presser plate 66.
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).
0A, the seesaw portion 158 rotates, and not only the first presser portion 159A but also the second presser portion 159B press the presser plate 6.
6, and the press plate 66 is pressed by both press parts 159A and 159B. Furthermore, the drive shaft 15
6, as shown in FIG. 19(e), the torsion spring 154b of the composite support member 69, which is stronger than the torsion spring 160A, is overcome and the rear side of the presser plate 66 also lowers, causing the presser plate 66 to rotate. Push in the entire back side of the IPll.

In this way, the holding plate 66 moves so as to gradually push the IP into the pick-up magazine 65 from the rear end to the front end, so that the photographed IP is reliably surrounded by the guide 122 in the pick-up magazine 65. It can be stored in the storage and loading area, and does not damage the surface of the IP.

The barcode reader 70 rotates around the fulcrum 150D as the presser plate 66 descends due to the force of a torsion spring 160B attached to the fulcrum 150D.
IP pushed into the tick-up magazine 65 by
Read the barcode written on the back of the ll to identify the correspondence between the dance 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 IP 5, the readable distance 71 between the reading unit 70a and the barcode written on the back of the IP located at the top is kept constant (see FIG. 17).
Since the reading unit 70a can be placed at the position 55-, the barcode reader 70 can reliably read the barcode.

Furthermore, since the barcode reader 70 rotates and scans around the fulcrum 150D as the presser plate 66 moves, it is possible to read the barcode multiple times by changing the barcode reading line within the readable range 71. Therefore, 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 addition, in FIG. 17, 72 is a barcode label on which a barcode is written.

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 a photographed IP, and a bar code can also be read accurately.

After the photographed IPII is completely stored in the pick-up magazine 65 by the presser plate 66, the presser plate attached to the drive shaft 156 is driven by the presser plate part movement control unit 207 to reversely rotate the fourth motor M4. link 157
rotates in the direction opposite to the direction of the arrow Q shown in the figure, and through the reverse process to the above process, the holding plate 66, nip roller 166, and barcode reader 70 each return to their original initial positions and read the next photographed IP. Tick up magazine 65
It will be prepared for storage inside.

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

The IPll set in the feed magazine 12 with its front side facing down is taken out by suction parts 13A and 13B in the takeout mechanism section 15 by vacuum suction on the back side of the IP. Extracted IP
II with the surface facing down by the delivery member 19.
The image is then transferred to the erasing unit 20, at which time the light emitting lamp 22 emits light and the I1 surface is irradiated with light, thereby erasing the IP noise. The noise-eliminated IPll is the outer belt 31 and inner belt 32 that constitute the special equipment section 30.
As a result, the IP is held and conveyed while changing direction upward at the arc-shaped bent portion, and when the tip of the IPll reaches the standby sensor 36, the IP is temporarily put on standby in the special equipment section 30. 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 B, which is a position facing the X-ray tube 2, by moving the entire holder part 50 toward the back of the apparatus, and captures the X-ray image transmitted through the subject. is rp
1i. After the photographing is completed, the entire holder portion 50 of the IPll returns to the original transport path by moving to the original initial position.

Then, it is conveyed again while being held between the upper belt 51 and the lower belt 52, and is sent to the storage section 60 while changing direction downward at the arc-shaped 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 without being subjected to the above-mentioned photographing operation.

The IPll 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 storage/loading section in the pick-up magazine 65 with the front surface facing down.

In this way, after stacking and storing a predetermined number of photographed IPlls in the pickup magazine 65, the shutter member 130 (shutter 658
) to block light by closing the opening 120f of the pickup magazine 65. After taking out the light-shielded tick-up magazine 65 from the device, it is inserted into another reading device, and the stored photographed IP is subjected to readout irradiation for photosensing.

Note that the present invention is not limited to the above-mentioned embodiments, and various modifications can be made within the scope of the gist of the present invention. Two or more light shielding members 140 may be set, and it is not necessarily necessary to set a plurality of light shielding members 140, but one light shielding member may be set. At this time, the light shielding plate 13
3 may be attached to the entire lower surface of the shutter member 130. Further, as the light shielding member 140, an elastic body such as a sponge can also be used in addition to a light shielding plate.

E. Effects of the Invention] As detailed above, according to the present invention, even though a large opening that can easily take in the IP is provided in the accommodation portion of the same size as the IP, the It is possible to provide a radiation diagnostic apparatus that is provided with a shutter member that closes the shutter member and a storage magazine that can completely block light even when the shutter member is opened and closed.

[Brief explanation of drawings]

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 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 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.
a) to FIG. 13(d) are explanatory diagrams of the light shielding operation when the shutter member is opened and closed, FIG. 14 is an explanatory diagram showing the schematic configuration of the housing section, and FIG. 15 is an 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. . 65... Storage magazine, 120... Frame, 120 guns... Opening, 121...
Notch, 130... Shutter member, 133... Light shielding sheet, 140...
Light blocking member, 140A...First light blocking member, 14
0B...Second light shielding member. Flute cM Fig. 5 (b) 11 ゛ = 289- A7 0 N 2 (b) JP-A-Sho Gel-241043 (21) Fig. 8 (0) (b) 0 to 1 -) 1 one -') Ql- 10 dimensions Fig. 13 (0) 21 (b) 44A Fig. 13 (d)

Claims (4)

[Claims] (1) In a radiological diagnostic apparatus in which a storage magazine is removably arranged to store and store stimulable phosphor sheets for recording and reproducing radiation images that have been subjected to radiation exposure, the storage magazine is located on one side of the box-shaped top surface. a frame body having a recessed notch in the inner wall of the upper surface thereof, and a frame body having a notch portion cut out to form an opening for taking in the stimulable phosphor sheet; a removable shutter member that closes the opening; the shutter member contacts the lower surface of the shutter member when it is attached, and the notch of the frame body when the shutter member is removed; A radiation diagnostic apparatus comprising: a light shielding member that is biased to engage with the light shielding member and shield light. (2) The radiation diagnostic apparatus according to claim 1, wherein the shutter member has a light-shielding plate attached to a surface that comes into contact with the light-shielding member. (3) The frame body is provided with a plurality of the notches along the sliding direction of the shutter member, and a plurality of the light shielding members are arranged corresponding to the notches. The radiological diagnostic apparatus according to item 1 or 2. (4) The light-shielding plate is formed in the shape of a trowel and is attached across both ends in the width direction intersecting the sliding direction of the shutter member and the front side in the sliding direction when the shutter member is removed. a first light shielding member, wherein the light shielding member escapes from a light shielding plate attached to both ends of the shutter member in the middle direction and comes into contact with the lower surface of the shutter member;
4. The radiation diagnostic apparatus according to claim 3, comprising a light-shielding plate attached to the entire width of the shutter member and a second light-shielding member in contact with the light-shielding plate.