JPS60239734A - Radiodiagnostic device - Google Patents

Abstract

PURPOSE:To record always effective pictures for diagnosis by driving and controlling a holder part not to stop a storage-type phosphor sheet in a photographing position but to lead it to a storage part if a flaw is detected by a flaw detector which is arranged in the preceding stage side in the carrying direction of the holder part and detects flaws of the storage-type phosphor sheet. CONSTITUTION:A phosphor sheet IP11 stopped in a prescribed position by a position sensor 58 is moved to a photographing position B, which faces an X-ray tube 2, according as the whole of a holder part 50 is moved toward the depth of a device, and a radiographic image transmitted through an object to be examined is projected onto the IP11. The IP11 after photographing is returned to the original carrying path again according as the whole of the holder part 50 is moved to an original initial position A. The IP11 is held between an upper belt 51 and a lower belt 52 and is carried again and is sent to a storage part 60 while turning downward by a circular bending part 59 in the other end. If a flaw on the surface of the IP11 is detected by a flaw detector 48, said photographing operation is not performed for this IP11, and it is carried to the storage part 60 as it is.

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 emits stimulated luminescence. A phosphor exhibiting such properties is called a stimulable phosphor.

Using this stimulable phosphor, radiation image information that has passed 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 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 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 readout irradiation for photostimulation after radiography, and after the recorded image is read out, it is considered to be highly economical. , has come to be used in radiological diagnostic equipment.

By the way, since such IP can be recycled and used many times, the phosphor layer of the IP may be damaged by repeated use. In particular, in a radiological diagnostic apparatus, if the IP has been taken out, transported, and stored many times, the phosphor layer may be damaged for some reason. In this way, if radiography is performed on a damaged IP, the radiographic images taken may not be able to be used as diagnostically effective images. This was only discovered after the IP was taken out from the radiological diagnostic equipment and read out and irradiated, which resulted in a large human burden and time loss when taking images again.

[Object of the Invention] The present invention has been made in view of the above circumstances, and it is possible to constantly record diagnostically useful images without performing radiography on a scratched stimulable phosphor sheet. The purpose of the present invention is to provide a radiological diagnostic device.

[Summary of the Invention] The outline of the present invention for achieving the above object is to provide a flaw detection device for detecting flaws in a stimulable phosphor sheet before it is transported to a radiographic imaging position, and to detect flaws by this flaw detection device. When the stimulable phosphor sheet is removed, the stimulable phosphor sheet is carried out to the storage section without stopping at the photographing position.

[Embodiments of the Invention] Hereinafter, embodiments of the radiological diagnostic apparatus according to the present invention will be described from the beginning 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 X-rays to a subject (patient);
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 section 10 that takes out and supplies an image plate (hereinafter abbreviated as IP) 11, a secondary erasing section 20 that erases the noise of the extracted IPll, and a erased IPl
A special equipment section 30 that transports the IPll and makes it standby once, a light shielding part 40 that blocks the light from the secondary erasing section 20, and a special equipment section 30 that transports the IPll that is once on standby in the special equipment section 30 to the photographing position. 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 the set IPIl.
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 member 19 that guides the IPll taken out by the takeout mechanism 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 43b, 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 5 driven by a third motor M3 (details will be described later).
2, and a @ position sensor 58, which is a third sensor, is arranged in the middle of the conveyance of both belts 51, 520. Further, this holder part 50 is attached to the guide shaft 1 as shown in FIG.
82.182 in the direction of the arrow shown in the figure (direction from the front side to the back side of the drawing in Figure 2), and moves the IPll held by the holder part 50 from the initial position A to the photographing position B. It is supposed to be done. Note that above this imaging position @B are the top plate 3 and X on which the patient is placed.
A radiation tube 2 is arranged, and the image system 5 is arranged below the imaging position B. After photographing the IPll, the holder part 50 is returned to the initial position A, and the IPll is returned to the storage area. It is supposed to be handed over to the 30th. 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 part 50 has reached the photographing position B. It is. Note that the means for detecting the arrival at the photographing position 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 a drive belt 61 for transporting the photographed IP II, a drive roller 62 in close contact with the drive belt 61, a feeding mechanism section 63, and a take-up magazine 65 for storing the photographed IP II. It is composed of a presser plate 66 supported above the pick-up magazine 65, a pressing mechanism section 67 for pushing the IPll 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 adsorption unit side movement control unit 202 controls the pair of adsorption units 13A in the supply unit 10,
13B, and a pair of suction parts 13
Based on the output signal of the first sensor (details will be described later) 116 that detects the positions of the parts A and 13B,
The first motor M1 in No. 5 is driven to rotate reversibly. Further, the vacuum pump control section 203 controls the pair of suction sections 13A.
, 13B controls the drive of the vacuum pump 14 that executes the adsorption operation of IPll. 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 IPII 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 50.
It is used to drive and control the That is, the third motor M
3 is driven and controlled to control the transport and stop of the IF) 11 in the holder part 50. This second conveyor belt drive control section 206 is connected to a position sensor 58 as the third sensor.
input the positional information of the conveyance tip of the IP11' during conveyance from , input the rotation information from the rotary encoder 117 fixed to the motor shaft of the third motor M3, and based on these inputs, input the positional information of the conveyance tip of the IP11' during conveyance. The IPll is stopped at a predetermined photographing position by controlling the motor M3.

Then, the limit switch 18 indicates that the holder part 50 has returned to its original position after moving to the imaging site.
3, it drives the third motor M3 to
ll is supplied and conveyed to the storage section 60. Further, when the flaw detection device 48 detects that there is a flaw on the surface of the IPll, the second conveyor belt drive control unit 206 controls the second conveyor belt drive control unit 206 to guide the IPll to the storage unit 60 without stopping the IPll at the photographing position. It is designed to drive and control the motor M3 of No. 3. 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 holder part 50.
The fifth drive means for the sliding members 181, 181 in
This is to drive and control the motor M5 of the motor M5. This sliding drive control unit 208 drives the holder part 50 from the initial position A to the photographing position B when an exposed lead (not shown) is pressed down, and after the X1iA@ shot is performed, the holder part 50 is moved. It is designed to return to the initial position A. Note that the sliding drive control section 208 controls the limit switch 18.
After detecting that IPll has reached the imaging position based on the output of step 4, X-ray exposure is performed, and when xi@ radiation is completed,
The holder portion 50 is returned to the initial position A. The presser plate drive control section 207 includes a fourth motor M4 that is a driving means for the pressing mechanism section 67 in the storage section 60.
By controlling the drive of the fourth motor M4, the presser plate 66 is driven;
Scanning of barcode reader 70 and nip roller 63
It is designed to carry out evacuation drive.

Next, the configuration, operation, and effects of the supply section 10 will be explained with reference to FIGS. 5 to 7. The IPlls 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 take-out mechanism section 15, which takes out the IPlls one by one, is constructed as shown in FIG. 5(a). That is, the rectangular frame 100
The pair of suction parts 13A and 13B are attached to the four corners of the holder. The pair of adsorption portions 13A are arranged at the tip side of the IPll stored in the feed magazine 12 in the direction of taking out the IPll.
Suction pads 13a, 1 that suction both ends in the width direction of ll
3a, and the vacuum pump 14 is connected to each of the suction pads 13a, 13a. Further, the pair of suction portions 13B include suction pads 1, 3, . b and i 3b, and the vacuum pump 14 is connected to each of the suction pads 13b and 13'b. Further, the pair of suction parts 1
A corrugation member 16 is attached to the frame 100 at an intermediate portion of the suction pads 13a, 13a constituting the suction pad 3A. This corrugation member 16 is provided with a suction pad 16a at a position protruding vertically downward from the suction surfaces of the suction pads 13a, 13a.
A vacuum pump 14 is connected to. Further, a coil spring 17 is inserted between the suction bat support 18 and the frame 100, 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 includes a frame support rod 101
is firmly attached. Bearings 102, 102 are attached to both ends of this frame support rod 101. A guide groove 103 in the form of a longitudinal hole guides the movement of the frame support rod 101 via the bearings 102, 102.
．． 103 is bored in a 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 guide the feed magazine 12 to the lowest layer of TPll 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, 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 M1 is transmitted through a drive sprocket 109 and a chain 110. The first motor M1 is connected to the take-out mechanism section 15.
The pair of suction portions 13A are detected by the first sensor 116 (not shown) disposed near the suction portions 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, 111 attached at positions corresponding to both ends in the width direction of IPll, and a corrugation roller 112 attached at a position corresponding to the center in the middle direction of IPll. The roller pair 111.111 is the drive shaft 1
Drive rollers 111a, 111a fixed to both ends of 13
Idle rollers 111b, 111b are rotatably attached to the support shaft 114 and come into contact with the drive rollers 111a, 111a, and a coil spring 11 is attached between the drive shaft 113 and the support shaft 114.
It consists of 5. Further, the corrugation 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, I
P1.1, the first motor M1 is rotated forward, and the drive shaft 107. 1st. Second link plate 10
4. ．． The frame support rod 101 is driven to move downward along the guide groove 103 via the guide groove 105 . When the frame 100 is moved downward together with the movement of the frame support rod 101, first the suction pad 16 on the corrugation member 16. a contacts the non-fluorescent surface (also referred to as the back surface) of IPll. Note that since the corrugation member 16 is attached with a coil spring 17 interposed,
The frame body 100 can be moved further downward. When the frame body 100 is moved further downward, all the suction pads 13a, 1
3a, 13'b, 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 >.
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 height.
is in contact with l. Here, the vacuum pump 14 is driven to adsorb IPll. In addition, the suction pad 13a 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. And after this the first
The motor M1 is driven in reverse rotation to start the separation operation of IPll.

When the frame body 100 is raised by driving the first motor M1 in reverse rotation, initially the suction pads 13a, 13a, 13
b, 13b only rises, and the suction pad 16a in the ml/L/gation member 16 is moved by the coil spring 17.
It will not be biased downward by the biasing force and will not rise.

As a result, when viewed in the width direction of the IPll, as shown in Fig. 6(b), only both ends of the IPll are narrow.
1, and the central portion is projected downward by a corrugation member 16. That is, IPl
I is formed in a wavy state in the width direction, and this undulation occurs throughout the lengthwise direction (direction along the extraction direction) of IPll. In particular, the suction pads 13b and 13b
This effect is remarkable because both ends of the IPll in the width direction are attracted to the center portion of the IPll in the longitudinal direction as well.

In this way, by forming the IPll in a wavy shape in the width direction, the section modulus of the IPll increases, and the I
No sag occurs when the Pll is separated and moved.

Therefore, even if the frame body 100 is further raised upward, the adsorbed IPII 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, it is possible to completely cut off contact with other IPlls, and it is possible to completely prevent two IPlls from being taken out due to pseudo adhesion 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 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.
The IPll held between the drive roller 111 and the drive roller 111
It is sent to the other side by receiving the conveying force of a.

(See Figure 7). At this time, when delivering the IP 11 to the delivery member 19, the pair of suction parts 13A, 1
3B, corrugation member 16. or delivery member 19 and I
Slip may occur between the PLL and the PLL. However, I
Drive roller 1 adsorbs the non-fluorescent surface of PII and transfers it.
11a, 111a and the non-fluorescent surface side of IPll are brought into contact with each other, so that the fluorescent 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. An AC power source is used as a power source for the light emitting lamp 22 in the secondary erasing section 2o.

Incidentally, in order to maintain the brightness and color temperature of the light-emitting lamp 22 constant and to achieve complete secondary erasure, the lamp load power must be kept constant. In this embodiment, in order to keep the actual value (2) of the lamp current (AC) 1-(t') constant, feedback is performed to keep 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 an inner belt 32 that are joined to each other so as to drip and transport IPII, and the outer belt 31 . Drive drums 33a, 33b and 34a, 34b, which synchronize the inner belt 32 and rotate intermittently in one direction (in the direction of the arrow in the figure)! : It is composed of 7ri1 et al. The outer belt 31 and the inner belt 32 are arranged in a stretched state with their lower ends on the side of the secondary eraser 20 being bent in an arc shape toward the secondary eraser 23 side along the arc-shaped guide piece 37. has been done.

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 belt 32
A standby sensor 36 is arranged at the upper end of the standby sensor 36 to detect the tip of the IPll being transported. Based on the signal emitted from the standby sensor 36, the driving of the ite drive trams 33a, 33b and 34a, 34b is stopped.

Further, in response to a signal indicating that the previous IP in the holder part 50 has returned to its original position from the imaging site and has been transferred to the storage section 6o, the drive drums 33a, 33b, and 34a
, 34b will start driving 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, and the IPII is transferred to the special equipment section 30.
Wait for a while. Both the outer and inner belts 31, 32, which have stopped driving, are connected to the previous IP in the holder part 50.
The drive is started again in response to a signal indicating that the photographing is completed and the transfer to the storage section 60 is started, and the transfer is carried 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 always on standby in front of the holder part 50, which is the imaging position, so that continuous Xa 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, 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, the above-mentioned special equipment section 30 can be provided 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 lPt1, a light shielding row 542 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 there is a possibility that the flexible member 42b will wear out as the row 542a 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. Note that a flaw detection device 48 is arranged near the light shielding roller 42 to detect flaws on the surface of the IPll 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 comes into contact is formed of a flexible member 42I), the surface of the light-shielding roller 42 is not damaged when the IPll 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. , 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 shown); 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. Guide member 5
Tension rollers 56a and 5 are installed near the belt 5 and contact the upper belt 51 or the lower belt 52, respectively.
6b, 57a, and 57b. In addition, 5
Reference numeral 8 denotes 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. 10, the length in the width direction perpendicular to the conveyance 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 belt 52 is composed of four narrow belts, and the four narrow belts 1 to 1 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 both bent portions 59 and 59 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 bent portions 59 and 59.

-y-”, t John Loaf 56a, 56b and 57a
.

57b is a rotatable driven boot 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).
The tension of each belt in the upper belt 51 or the lower belt 52 can be adjusted by fitting the belt into the belt. still,
The tension of the belt may be adjusted by detecting the optimum tension in advance and controlling the tension so that the tension is automatically varied to that tension.

The drive rollers 53a, 53b, 54a, '5'
4b 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 supports them in a movable manner. 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. Incidentally, this fifth motor M5 is driven based on the drive control of the sliding drive control section 2.8.

The holder part 5o 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 t, and P11 is held between the upper belt 51 and the lower belt 52 and conveyed. On this occasion,
The transported IPll changes its transport direction at the bending portion 59 and is transported with the surface of the IPll 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, the I
The Pll stops, but at this time, since tension is applied at both bent portions 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. Further, the tension of each of the upper belt 51 and lower belt 52 that hold JPll is determined by the tension roller 56a.

The shafts of 56b, 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 JP can be appropriately held and transported without damaging its surface. Furthermore, the upper belt 51 moves to the photographing position, which will be described later, covering the entire surface of the IP.
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 center of the holder part 50 and then moved to the photographing position B. Here, IPll
is the bent portion 5 on the front stage side of the conveyance among the bent portions 59.59.
The leading edge or trailing edge of the IPII is detected by the position sensor 58 disposed at the upper belt 51 . Rotation information of the third motor M3, which is the drive source for the lower belt 52, is input from the rotary encoder 117. Since the distance between the position sensor 58 and the stop position is known, the distance between the position sensor 58 and the conveyance end of the IPll is determined by the position sensor 58, which is necessary to drive the third motor M3 in order to reach the stop position. The number of pulses can be detected. In addition, the position sensor 58
may be configured to detect the rear end of IPII. The second conveyor belt drive control unit 206 performs the IP
The third motor M3 is controlled to accurately stop the motor 11 at the stop position. After the IPll is stopped at the central part of the holder part 50, a lead exposure resistor (not shown) is pressed down, and the fifth motor M5 is driven under the control of the sliding drive control unit 208, and the holder part 50 is moved from the initial position A shown in FIG. 3 to the imaging position B, and X-ray imaging for IPll is performed. Furthermore, the shooting position B is IPl.
XI for the whole of l! In the case of photographing, and in the case of dividing photographing, 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 timing when the secondary erasure of the IP is completed and resets the timing when the lead exposure button is pressed. Therefore, if the exposed lead 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 so as 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. For IPlls for which X-ray imaging has been completed or for which a predetermined period of time has elapsed without X-ray imaging, 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. The second conveyor belt drive control unit 206 continuously drives the third motor M3 when the flaw detection device 48 provided on the front side of conveyance of the holder part 50 detects that there is a flaw in the IPll. 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 (+1) shows 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 pin 125 is provided at the lower end of this front plate 120a, and when the pick-up magazine 65 is attached to the device main body, this first lock pin 125 is locked to the device main body side. (See Figure 11 (C))
. 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 notches 121 are provided at two locations along the sliding direction of the shutter member 130. It is composed of second notches 121A and 121B (12th
(See figure (e)). The opening 120f of this frame 120
is the IPl when the shutter member 130 is opened.
The bottom plate 120 of the frame 120 facing the opening 12Of is a storage part that sequentially takes in and stacks the IPlls one by one.
A guide 122 made of a flexible member with a large amount of deformation is erected to restrict the movement of (Figs. 11(a), (b),
(see (c)). Further, on the inner wall surfaces of the side plates 120e and 120e of the frame body 12'O, the shutter assembly is formed of the upper plate 120c and a protruding piece 124 which is formed to protrude downwardly from the upper plate 120c. A guide groove 123 for sliding the member 130 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 the second lock bin 132- is attached to the frame 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 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. (Fig. 12 (a), (c >, (d))
reference). The light shielding member 140 is the shutter member 1
30 is attached to the frame 120, the shutter member 1
30, and when the shutter member 130 is removed, the frame 1
The shutter member 1.30 engages with the notch 121 of 20.
This is to block light from the movement route of the person. This light shielding member 140
The above 1. First and second light shielding members 140A provided opposite to the second notches 121A and 121B, respectively.
, 140B. This first. The second light shielding members 140A and 140B are shown in FIGS.
), the side plates 120e, 12
The fulcrum shafts 141A, 141B suspended between the fulcrum shafts 141A and 141B, the light shielding plates 142 and 143 rotatably supported by the fulcrum shafts 141A and 141B, and the light shielding plates 142 and 143 are indicated by the arrows in FIG. 12(e). Spring 14 that biases the direction
It consists of 4A and 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 made to escape the narrow parts j33B and 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 ends of the springs 144A and 144B are respectively locked to the lower surfaces of the light shielding plates 142 and 143, and the round ends thereof are connected to the frame body 1.
A locking plate 145 erected on the bottom plate 120d of No. 20
A and 145B are respectively affiliated with them.

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 in addition to reference. 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 the PLL in a state where it can be taken in. In this state, the light shielding plates 142 and 143 are connected to the springs 144A and 1.
44B, the light shielding plate 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')).

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 prevents the shutter member 130 from moving. Light leakage from the moving route can be prevented. Moreover, the bent part 1
43A comes into contact with the second notch 121B which is one step lower than the top plate 1200, so that light leakage can be reliably prevented from this contact point. Furthermore, the front plate 120a and the second light shielding member 14
Since the first light shielding member 140Δ 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 12Of of the frame 120. It will be loaded into the loading area. 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. In addition, since the loading position of the IPlls is regulated by the guide 122 in this way, when the pick-up magazine 65 is taken out from the device body and transported, the loaded IPlls can be prevented from moving and transported. At times, the phosphor layer 11a of IP1'l is not damaged.

Next, ■P1 loaded in the tick-up magazine 65
1 is full, and the operation when the pick-up magazine 65 is taken out from the main body of the apparatus will be explained. Before taking out the pickup magazine 65 from the main body of the device, the frame 1
20 opening 12Of is closed, and this opening 12Of
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
B is still engaged with the second notch 121B, so that 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 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 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 in the width direction of the shutter member 130 can be shielded from light by the first light shielding member 140A, and both ends thereof can be shielded from light by the second light shielding member 140B. When the shutter member 130 is further slid, as shown in FIG. 13(d), the first and second light shielding members 140A, 140. Both B are light shielding plates 13
It comes into contact with the wide portion 133A of No. 3. In this case, the center portion in the width direction of the shutter member 130 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 130
It is possible to completely block light even during and after the slide movement. 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, the IPll loaded in the frame 120 is
Since the movement is regulated by 22, the phosphor layer 11a
It won't hurt. Further, a light shielding plate 133 is attached to the lower surface of the shutter member 130, and this narrow portion 1
33B prevents IPll from protruding beyond the upper end of the guide 122, so that IPll does not fit into the guide groove 123.
There is no possibility that the particles will get into the air 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 120f of the pick-up magazine 65, and a feed mechanism unit that feeds the photographed IP along the lower surface of the presser plate 66. 63 and the upper surface of the holding plate 66 to pick up the photographed IP into the magazine 65.
It is composed of a suppression mechanism section 67 that is pushed inward.

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 six composite support members, and is inclined downward from the front side to the rear side as a whole. 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 151a downward, and when the guide shaft 151a is below the predetermined position, the second spring 154a acts to push the guide shaft 151a downward. Only the spring 154b works to push the guide shaft 151a upward. The upper end of the guide frame 152 is connected to the fixed frame 153 by a spring 155, and the spring 155 causes a pin 1 protruding from the lower front side of the guide frame 152 to be connected to the fixed frame 153 by a spring 155.
A force is acting on the guide frame 152 in the direction of pushing it forward at 52C.

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 150G. , 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
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 and 164 on both sides by pressing springs 165, 165, and feed rollers 164 on both sides.
, 164 and a corrugation roller 167 having a larger diameter than both 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 via a sprocket 171 at the end. Nip roller 166.16
6 is attached to the support shaft 172 via a bearing 173, and the nip rollers 166, 166 are rotated by the rotation of the feed rollers 164, 164, which are pressed by pressing springs 165, 165 attached to both ends of the support shaft 172. It can be rotated freely. Also,
As shown in FIG. 15, the support shaft 172 is fitted with a groove 174a formed in a cam 174, and a sprocket 175 is integrally provided on the cam 174.
The sprocket 175 is connected to the aforementioned large sprocket 161A via a chain 176, so that the rotational drive of the fourth motor M4 is transmitted to the cam 174. Then, the rotation of the cam 174 overcomes the pressing force of the suppression spring 165 and moves the support shaft 172 in the opposite direction where the pressing force is applied, and the nip roller 166
is moved in the direction of arrow P in FIG.

In FIG. 14, 70 is a barcode reader that reads a barcode (not shown) written on the photographed IP.
As shown in FIG. 7, 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. 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.
The presser roller 173a presses the upper surface of the presser plate 66 by the torsion spring 160B, and the barcode reader 7
0 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 tick-up 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
The IPll sent by 64 is shown in FIG. 19(a).
As shown in FIG. 3, the tip thereof is guided toward the back of the pick-up magazine 65 along the presser plate 66. This is because, as shown in FIG. 16, by corrugating the IPll with the rugation roller 167, the rigidity of the IPll in the transport direction is increased. 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, the surface of the IP coat will not be rubbed even if it slips when starting or stopping rotation, so the captured image will not be recorded. The IP coating will not scratch the surface. Note that if the corrugation roller 167 is not provided, the rigidity of the IP in the transport direction will not be strengthened, so the second
As shown in FIG. 0, the newly inserted IPll hangs down on the back surface of the IP already housed in the pickup magazine 65 due to its own weight, and its surface 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 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 IP
is pressed into the tick-up magazine 65 by.

Until this state is reached, the torsion spring 160A is attached to the fulcrum 150G 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
The barcode written on the back of the ll is read to identify the correspondence between the photographed 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 transferred to the take-up magazine 66.
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 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 read the barcode multiple times by changing the barcode reading line within the readable range 71. 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 is possible to reliably and smoothly load and store the IP in a pick-up magazine 65 having an accommodation/loading part of almost the same size as the photographed IP without damaging the surface, and also to read barcodes accurately.

After the photographed IPll is completely stored in the pick-up magazine 65 by the presser plate 66, the presser link attached to the drive shaft 156 is driven by the presser plate drive control unit 207 to reversely rotate the fourth motor M4. 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 downward is vacuum-adsorbed by suction parts 1.3', A, and 13B in the take-out mechanism section 15, and only one sheet is taken out. It will be done. The taken out IPll is transported by the sending member 19 to the secondary erasing section 20 with the surface facing down, and at this time, the light emitting lamp 22
When the 11 surface emits light and receives light irradiation, I
P noise is eliminated. Noise removed IPll
is held and conveyed by the outer belt 31 and inner belt 32 that constitute the special equipment section 30 while changing the direction upward at the arc-shaped bent part, and when the tip of the IPll reaches the standby sensor 36, , the IP is temporarily 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 the position sensor 58. The IPll stopped at a predetermined position moves to the imaging position B, which is the position facing the X-ray tube 2, by moving the entire holder part 50 toward the back of the apparatus, and the XI! The photographed image is I
It is copied onto the Pll. 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 A.

Then, it is conveyed again by 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 IPs for which a flaw is detected on the surface of the IPll by the flaw detector @48 are 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 feeding mechanism section 63 with the surface of the IP 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 press 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 take-up magazine 65 with the front surface facing down.

In this manner, after a predetermined number of photographed rPlls are stacked and stored in the pickup magazine 65, the opening 120f of the pickup magazine 65 is closed with the shutter member 130 (shutter 658) to block light. Tick-up magazine 6 shielded from light like this
5 from the device, insert it into another reading device,
The stored photographed IP is subjected to readout irradiation for photoexhaustion.

Note that the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the gist of the present invention. The holder part 50 is not limited to one that moves back and forth between the initial position and the photographing position B as shown in FIG. Above the holder part 50 is an X-ray tube 2. X-ray photography may be performed on 1P11 with the top plate 3 disposed and stopped and held by the holder part 50.

[Effects of the Invention] As explained above, according to the present invention, a flaw detection device detects flaws in a stimulable phosphor sheet before subjecting it to radiography, and images the stimulable phosphor sheet with the flaw. It is possible to provide a radiological diagnostic apparatus that can be transported and stored without being damaged. Therefore, images that are useful for diagnosis can be recorded at all times, and the human burden and time loss that would otherwise occur if re-imaging is required can be eliminated.

[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), Fig. 7 is an explanatory diagram of the operation of the supply section, Fig. 8 (a) is an explanatory diagram showing the main parts of the light shielding part, Fig. 8 (b) is its sectional view, and Fig. 9 is a part of the holder. Explanatory diagram showing the outline of
FIG. 0 is a perspective view showing a belt that clamps and conveys a part of the holder, and FIGS. 11(a), (b), and (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, FIG. 12(f), (ill
) are the first. A schematic perspective view of the second light shielding member, the first
3(a) to 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 structure of the housing section, and FIG. 15 is an explanatory diagram of the suppressing mechanism section and the feeding mechanism section. FIG. 16 is an explanatory diagram showing the schematic structure 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; Figure 18 (
a), (b), and (c) are explanatory diagrams showing the operation up to setting the tick-up magazine in the device; FIG. 19(a);
(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. . 10... Supply unit, 11... Stimulable phosphor sheet, 48... Flaw detection device, 50...
・Holder part, 60... Storage part, 206...
...Drive control section. (b) 11 Figure 6\ 2 (b) II l1lb Figure 8 (0) (b) 6 Figure 12 Figure 13 (a) 21 (b) 44A

Claims (1)

[Claims] A supply unit that sequentially takes out and supplies stimulable phosphor sheets for radiographic image recording and reproduction one by one, and a supply unit that transports the stimulable phosphor sheets taken out from this supply unit and temporarily stops them at the imaging position, and after radiography, In a radiation diagnostic apparatus having a part of the holder that is driven to transport the stimulable phosphor sheet to a destination, and a storage part that receives and stores the stimulable phosphor sheet from this part of the holder, the transport direction of the part of the holder is A flaw detection device is disposed on the front side to detect flaws in the stimulable phosphor sheet, and when a flaw is detected by this flaw detection device, a part of the holder is driven and controlled to stop the stimulable phosphor sheet at a photographing position. and a drive control section that guides the radiation to the storage section without moving.