JPH0739805U - Animal X-ray diagnostic protection device - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] Since there are no columns that interfere with the entrance and exit of the animals and the shooting operations, the state of the animals at the time of shooting can be visually checked easily without taking an unreasonable posture. We propose a protective device for X-ray diagnosis of animals that has a simple structure and is easy to manufacture so that the lead curtain can be automatically raised and lowered when moving in and out. [Structure] A box-shaped protective hood, in which a front glass and a left and right side surfaces provided with a peep window made of lead glass is provided above a front surface of a mounting plate whose rear surface is supported and fixed by two columns, is attached, The lower surface of the hood is open, and the upper surface is formed with an opening for inserting the bulb of the X-ray tube. The slide frames are vertically movably supported by the guide frames provided on both left and right sides of the mounting plate. Both ends of a supporting rod that is bent in a U-shape in a plane and is capable of moving up and down in proximity to the outside of the protective hood are fixed to the slide frame, and a lead curtain composed of a large number of strips is hung on the supporting rod. Has been done.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an X-ray protective device used for X-ray diagnosis of relatively small animals such as dogs and cats. More specifically, the present invention relates to an X-ray protective device that automatically moves a lead curtain that shields X-rays up and down. It is about.

[0002]

[Prior art]

 In general, an X-ray machine for animals uses a box-type hood with a peep window with an open bottom, which has an X-ray tube that emits X-rays downward at the upper end when X-raying an animal. To prevent leakage of X-rays, a curtain (lead curtain) is attached, which has a large number of strips made of lead powder hardened with a soft material such as rubber, and is hung in a blind shape. An X-ray is taken while holding the animal in the hand and holding it by hand.

However, since the above-mentioned conventional protective hood has a lead plate stretched on the inner surface and the lead carton and the X-ray tube also have a considerable weight, for example, in order to support them, columns are provided at the four corners. It stands upright, which hinders the movement of animals in and out and holds down the animals, which also hinders shooting operations.

[0006] Therefore, there has been proposed a structure in which the entire hood on which the lead curtain is suspended can be lifted and lowered without using the pillars, thereby facilitating the entry and exit of animals and photographing. Since it becomes heavy, a large electric motor or the like must be used for lifting and lowering, and the entire apparatus becomes large and expensive.

[0005]

[Problems to be solved by the device]

 The present invention solves the above-mentioned conventional problems, and there is no support column that interferes with the entrance and exit of animals and the shooting operation, and it is easy to take the posture of the animal at the time of shooting without taking an unreasonable posture. We propose a protective device for X-ray diagnosis of animals that can be visually recognized and that the lead curtain can be automatically raised and lowered by operating a switch when moving in and out. It is a thing.

[0006]

[Means for Solving the Problems]

 That is, the present invention installs a box-shaped protective hood in which a front glass and a left and right side surfaces are inclined outward with a lead glass peephole provided above the front surface of a mounting plate whose back surface is supported and fixed by two columns. The bottom surface of the hood is open, and the top surface is formed with openings for inserting the bulb of the X-ray tube. The slide frames are vertically supported on the guide frames provided on the left and right sides of the mounting plate. Both ends of a supporting rod, which is bent in a U-shape in a plane and is capable of moving up and down in proximity to the outer side of the protective hood, are fixed to the slide frame. , A plurality of pulleys for guiding the transmission wire are provided above the rear surface of the mounting plate, and a drum around which a belt-shaped constant-force spring biased in the winding direction is wound is provided in the middle. A forward / reverse rotation motor is installed in the lower part. Each of the slide frames is arranged and fixed, and the tip ends of the transmission wires are connected to the head ends of the slide frames, and the base ends of the transmission wires are connected to the constant force spring via a transmission chain driven by the motor. Accordingly, the present invention provides a protective device for X-ray diagnosis of animals, in which the slide frame can be automatically moved up and down together with the lead curtain by driving the motor.

Further, the forward / reverse rotation motor is instantly started by a power switch such as a foot switch, a contact is provided at a predetermined position on one of the guide frame and the slide frame, and a predetermined interval is provided on the other. The upper and lower limit switches are attached so that the lead curtain can be automatically stopped from moving up and down at a predetermined position. Embodiments of the present invention will be described below with reference to the drawings.

[0008]

【Example】

 Reference numeral 1 denotes a mounting plate for mounting a box-shaped protective hood 2 described later above the center of the front surface. The mounting plate 1 is erected while being supported by two columns 3 and 3 fixed to the rear side. Outriggers 4, 4 which are extendable in the left-right direction are arranged on the left and right sides, and support legs 6 having two wheels 5 attached to the lower side thereof are formed to project from the lower end front surface of the outriggers 4, respectively. ing.

Reference numeral 2 denotes a stainless steel protective hood having a lead plate stretched on its inner surface. The front surface and both left and right side surfaces of the hood are inclined outwardly. 8 are provided. The lower surface of the hood 2 is open, and the upper surface is provided with an opening 9 for allowing a bulb (not shown) of an X-ray tube to face. Reference numeral 10 denotes a support plate which is fixed to the right and left side surfaces of the hood 2 and has a base portion fixed to the head portions of two mounting rods 11 and 11 protruding upward. (Not shown) is fixed, and its bulb is inserted into the opening 9 on the upper surface of the hood 3.

Reference numeral 12 denotes a support rod that is bent and formed into a flat U-shape that can rise and descend freely along the attachment plate 1 on the outside of the hood 2. The support rod 12 has the above-described lead rod. A lead curtain 13 composed of a large number of strips made by solidifying powder with rubber or the like is hung evenly in a comb shape, and both ends of the support rod 12 can slide up and down along the mounting plate 1. 14 and 14 'are supported and fixed to the front surface.

The slide frames 14 and 14 ′ are fitted in guide frames 15 and 15 ′ formed along both left and right sides of the mounting plate 1, and can be raised and lowered in the guide frames 15 and 15 ′. Supported by. A contactor 18 is attached to a predetermined position of the slide frames 14 and 14 ', and the guide frame 15 is brought into contact with an upper limit switch 16 or a lower limit switch 17 attached to a predetermined position of the guide frame 15 by contacting the guide frame 15. 4 is configured to stop rising or falling.

As shown in FIG. 2, pulleys 24 and 25 for guiding one transmission wire 19 (left side in this embodiment) and another transmission wire 20 (right side in the figure) are provided on an upper portion of the back surface of the mounting plate 1. ) Is provided, and a drum 23, to which a belt-shaped constant force spring (cowter balancer) 22 biased in the winding direction is wound and fixed, is provided in the middle part, and a normal part is provided in the lower part. Reverse rotation motors 28 are arranged and fixed.

The tip of the left transmission wire 19 is connected to the head end of the left slide frame 14, and the tip of the right transmission wire 20 is connected to the head end of the right slide frame 14 ′. , 20 are connected to a transmission chain 21 driven by a forward / reverse rotation motor 28 at the front end thereof, and the base end of the transmission chain 21 is fixed to the front end of the constant force spring 22.

The forward / reverse rotation motor 28 is configured to be instantly started by a foot switch 29 or a power switch (not shown) provided on the photographing table 30, and drives the transmission chain 21 counterclockwise in the figure. The constant force spring 22 is wound around the drum 23, and the transmission wires 19 and 20 are pulled downward to simultaneously raise the left and right slide frames 14 and 14 '.

When both slide frames 14 and 14 ′ are simultaneously raised in parallel, the lead curtain 13 is raised via the support rod 12, and the upper limit switch 16 of the guide frame 15 is provided with the contactor 18 of the slide frame 14. Upon contact, the power supply of the motor 28 is cut off, the lead curtain 13 stops rising, and the top of the imaging stand 30 is opened.

Next, the animal is placed at a predetermined position on the photographing table 30, and the transmission chain 21 is rotated right by rotating the motor 28 in reverse with the foot switch 29 while pressing the animal manually so that the animal does not move. Then, the left and right slide frames 14 and 14 'are lowered via the transmission wires 19 and 20 to lower the lead curtain 13, and the contact 18 is brought into contact with the lower limit limit switch 17 to stop descending to a predetermined position. Press the foot switch (not shown) to launch X-rays from the X-ray tube (not shown) mounted on the support plate 10 just above the protective hood 2 so that the animal enters the lead curtain 13. The X-ray is taken.

It should be noted that if the photographing table 30 is allowed to slide freely, the photographing position of the animal can be finely adjusted.

[0018]

[Effect of device]

 The protective device for animal X-ray diagnosis of the present invention is constructed as described above, there is no pillar that interferes with X-ray photography, and the lead curtain is not directly attached to the protective hood. It is suspended on a support rod that can be raised and lowered, and it can be automatically raised and lowered to a predetermined position by a switch operation without manual labor, which is extremely convenient, and it is easy for animals to move in and out of the shooting table. is there.

[0019] Furthermore, since the protective hood in which the peep window made of lead glass is fitted on the front surface and the left and right side surfaces is inclined outward, it is possible to keep the animal in an uncomfortable posture during X-ray photography. There are various advantages in that it is easy to see, has a simple structure, and is easy to manufacture.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a protective apparatus for animal X-ray diagnosis according to the present invention.

FIG. 2 is an explanatory rear view showing an embodiment of a protective device for animal X-ray diagnosis according to the present invention.

FIG. 3 is an explanatory perspective view showing an automatic raising / lowering mechanism of a lead curtain of an animal X-ray diagnosis protection apparatus according to the present invention.

[Explanation of symbols]

 1-Mounting Plate 2-Protective Hood 3-Post 4-Outrigger 5-Wheel 6-Supporting Leg 7-Peeping Window 8-Peeping Window 9-Opening 10-Supporting Plate 11-Mounting Rod 12-Supporting Rod 13-Lead Curtain 14 -Slide frame 15-Guide frame 16-Upper limit switch 17-Lower limit switch 18-Contact 19-Transmission wire 20-Transmission wire 21-Transmission chain 22-Band-shaped constant force spring 23-Drum 24-Pulley 25-Pulley 26- Pulley 27-pulley 28-forward / reverse rotation motor 29-foot switch 30-imaging platform

Claims (2)

[Scope of utility model registration request] 1. A box-shaped protective hood in which a front glass and a left and right side surface are provided with a peep window made of lead glass provided above a front surface of a mounting plate whose rear surface is supported and fixed by two columns, and which are inclined outward. The bottom surface of the hood is open, and the top surface is formed with an opening for inserting the bulb of the X-ray tube. The slide frames are vertically supported by guide frames provided on both left and right sides of the mounting plate. Both ends of a supporting rod, which is bent in a U-shape in a plane and is capable of moving up and down in proximity to the outside of the protective hood, are fixed to the slide frame, and a lead curtain composed of a large number of strips is attached to the supporting rod. A plurality of pulleys that are suspended and guide the transmission wire are provided above the rear surface of the mounting plate, and a drum around which a belt-shaped constant-force spring that is biased in the winding direction is wound is provided in the middle. Forward and reverse rotation motors are installed in the It is fixed and fixed, and the tip ends of the transmission wires are connected to the head ends of the slide frames, and the base ends of the transmission wires are connected to the constant force spring via a transmission chain driven by the motor. The animal X-ray diagnostic protection device, wherein the slide frame is configured to be automatically movable up and down together with a lead curtain by driving the motor. 2. The forward / reverse rotation motor is configured to be instantly started in a predetermined direction by a power switch such as a foot switch, and a contactor is provided at a predetermined position of one of the guide frame and the slide frame. The animal X-ray diagnostic protection apparatus according to claim 1, wherein upper and lower limit switches are attached to the other at predetermined intervals to automatically raise and lower the slide frame.