JPH05317297A - X-ray radioscopic photographing device - Google Patents

Abstract

PURPOSE:To improve operability by omitting a reset operation executed at the time of re-setting. CONSTITUTION:By an operation of a number setting device 6 for setting a number for discriminating an examine before photographing, or an opening/ closing signal from a door opening/closing signal generator 10 of a door through which the examinee goes in and out, radioscopic timers 1, 2 are reset, In such a way, with respect to an operation of a radioscopic timer reset circuit 9 of every alternation of the examinee, executed in the case of re-setting the radioscopic timers 1, 2, since radioscopic timer reset circuits 9a, 9b are operated by an operation of the number setting device 6 or the door opening/closing signal, an operation of re-setting is simplified and operability is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an X-ray fluoroscopic imaging apparatus, and more particularly to a fluoroscopic timer reset circuit suitable for initial setting of a fluoroscopic timer during fluoroscopy.

[0002]

2. Description of the Related Art In an X-ray fluoroscopic imaging apparatus, an imaging region is confirmed by fluoroscopy before X-ray imaging.
In order to prevent excessive X-ray irradiation of the subject during this fluoroscopy, a conventional device is provided with a fluoroscopy timer for setting and counting the fluoroscopy time. This fluoroscopy timer automatically terminates fluoroscopy when the set time is reached. This set time is usually within 10 minutes, and when set to 5 minutes or less, it continues from about 30 seconds before the end of the set time. Emits a warning sound,
When the time is set to 5 minutes or more, a warning sound is generated immediately before the lapse of 5 minutes in addition to the warning 30 seconds before the set time ends. Then, after hearing the warning sound, the operator resets the fluoroscopic timer with the fluoroscopic timer reset circuit and resets the fluoroscopic timer.

[0003]

In the above-mentioned conventional apparatus, the fluoroscopic timer setting time differs depending on different conditions and the like for each subject. Therefore, it is necessary to reset the fluoroscopic timer after resetting the fluoroscopic timer with the fluoroscopic timer reset circuit by hearing the warning sound of the fluoroscopic completion each time the subject is replaced.
It was very troublesome.

Therefore, it is an object of the present invention to improve the operability by omitting the reset operation at the time of resetting.

[0005]

In order to achieve the above-mentioned object, a fluoroscopic timer for counting the irradiation time of fluoroscopic X-rays,
In an X-ray fluoroscopic imaging apparatus having a fluoroscopic timer reset circuit for resetting the fluoroscopic timer, the fluoroscopic timer reset circuit can be reset in conjunction with a signal corresponding to the replacement of the subject.

[0006]

The operator sets the subject number with the number setting device to distinguish it from other subjects before imaging, and sets the fluoroscopic time according to the subject with the fluoroscopic timer.
Then, the fluoroscopic timer is reset in association with the opening and closing of the door when the operator finishes the fluoroscopy and sets the number of the next subject, or when the subject is replaced. Thereby, the reset operation of the see-through timer can be omitted and the operability is improved.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. FIG. 1 is a circuit diagram showing an embodiment of the present invention. 1 is a fluoroscopic timer that sets the fluoroscopic time, 2 is a fluoroscopic timer that sets the warning time of the buzzer 5, 3 is an X-ray irradiation switch, 4 is an X-ray control circuit, 5 is a buzzer that emits a warning sound, and 6 is the subject A number setter for setting a number, 7 is a relay opened / closed by the fluoroscopic timer 1, 8 is a relay opened / closed by the number setter 6 or the door opening / closing signal generator 10, 9 is a fluoroscopic timer reset circuit for resetting the fluoroscopic timers 1 and 2 Reference numeral 10 denotes a door open / close signal generator that goes in and out when the subject is replaced.

Next, the operation of the present invention will be described. First, when the X-ray irradiation switch 3 is pressed, the switch 3a is closed and power is supplied to the fluoroscopic timer 1, and the timer operates to count the fluoroscopic time. Then, when the fluoroscopic time set in advance by the fluoroscopic timer 1 has elapsed, the switch 1a is closed and power is supplied to the relay 7, the switch 7a is closed and power is supplied to the fluoroscopic timer 2, and the timer operates to count the warning time. .. Simultaneously with the operation of the fluoroscopic timer 2, the switch 2a is closed and power is supplied to the buzzer 5 to generate a warning sound. When the warning time elapses in the fluoroscopic timer 2, the switch 2a opens and the buzzer 5 does not generate a warning sound. At this time, the switch 2b connected to the X-ray control circuit 4 is opened and the X-ray irradiation is stopped.

When the fluoroscopic timers 1 and 2 are reset when the fluoroscopic timers 1 and 2 are reset, the fluoroscopic timer reset circuit 9b is opened, and the switch 9a connected to the reset terminals of the fluoroscopic timers 1 and 2 is closed to supply power and reset. When the number setting signal is sent from the number setting device 6, the relay 8 operates to open the switch 8b connected to the X-ray control circuit 4 in parallel with the fluoroscopic timer reset circuit 9 to open the fluoroscopic timers 1 and 2. Switch 9a for reset terminal
The switch 8a connected in parallel with is closed and the power supply is reset.

Further, when an opening / closing signal is sent from the door opening / closing generator 10 provided on the door when the subject finishes the imaging and leaves the imaging room, the relay 8 operates like the number setting device 6 described above. The fluoroscopic timers 1 and 2 are reset by operating. That is, the fluoroscopic timers 1 and 2 are reset by operating the fluoroscopic timer reset circuit 9, the number setting device 6, or the door opening / closing signal generator 10.

As a result, the fluoroscopic timers 1 and 2 can be reset by operating the number setting device 6 or the door opening / closing signal in addition to the fluoroscopic timer reset circuit 9, so that the operability is improved.

[0012]

According to the present invention, the operation of the fluoroscopic timer reset circuit for each alternation of the subject, which has been performed when resetting the fluoroscopic timer, is linked to the signal corresponding to the alternation of the subject and the fluoroscopic timer is operated. Since the reset circuit is operated, the resetting operation is simplified and the operability is improved.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing an embodiment of the present invention.

[Explanation of symbols]

 1 Fluoroscopic timer 2 Fluoroscopic timer 3 X-ray irradiation switch 4 X-ray control circuit 5 Buzzer 6 Number setting device 7 Relay 8 Relay 9 Fluoroscopic timer reset circuit 10 Door opening / closing signal generator

Claims (1)

[Claims] 1. An X-ray fluoroscopic imaging apparatus having a fluoroscopic timer for counting the irradiation time of fluoroscopic X-rays, and a fluoroscopic timer reset circuit for resetting the fluoroscopic timer, wherein the fluoroscopic timer reset circuit corresponds to the replacement of the subject. The X-ray fluoroscopic imaging apparatus is characterized in that the reset operation is possible in conjunction with the signal.