JPH0327616Y2 - - Google Patents
Info
- Publication number
- JPH0327616Y2 JPH0327616Y2 JP1983169569U JP16956983U JPH0327616Y2 JP H0327616 Y2 JPH0327616 Y2 JP H0327616Y2 JP 1983169569 U JP1983169569 U JP 1983169569U JP 16956983 U JP16956983 U JP 16956983U JP H0327616 Y2 JPH0327616 Y2 JP H0327616Y2
- Authority
- JP
- Japan
- Prior art keywords
- top plate
- ray
- speed
- comparator
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000003384 imaging method Methods 0.000 claims description 13
- 210000004204 blood vessel Anatomy 0.000 claims description 7
- 210000003141 lower extremity Anatomy 0.000 claims description 7
- 239000002872 contrast media Substances 0.000 description 9
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 208000007536 Thrombosis Diseases 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Landscapes
- Radiography Using Non-Light Waves (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Description
【考案の詳細な説明】 (イ) 産業上の利用分野 本考案は、Ｘ線撮影の分野で利用される。[Detailed explanation of the idea] (b) Industrial application fields The invention is used in the field of X-ray photography.
本考案は、検診台の天板を間欠移動し、その停
止毎にＸ線撮影が行なわれるようにした、Ｘ線連
続撮影装置に関し、とくに循環器Ｘ線検診での下
肢血管の連続撮影に有用な装置に関する。 The present invention relates to a continuous X-ray imaging device in which the top of the examination table is moved intermittently and X-rays are taken each time it stops, and is particularly useful for continuous imaging of blood vessels in the lower extremities during cardiovascular X-ray examinations. related to equipment.
(ロ) 従来技術
一般に、下肢血管の撮影には、天板上に患者を
寝かせ、間欠的に体軸方向へある一定の距離を一
定の時間、つまり定速で、数回（通常４〜５回）
移動させ、それぞれの停止した位置で、あらかじ
め設定した撮影条件により撮影が行なわれる。(B) Prior art In general, to image blood vessels in the lower extremities, the patient is placed on a tabletop, and the patient is intermittently moved several times (usually 4 to 5 times)
The camera is moved, and at each stopped position, photography is performed according to preset photography conditions.
このように、天板の各回のステツプ移動距離と
その速度が一定であるが、他方造影剤の流れる速
度は血管の大きさによつて早く流れたり、遅く流
れることもあり、患部付近では、血栓などによ
り、その流れは遅くなり、また、末梢にいくほ
ど、その速度はさらに遅くなる。 In this way, the distance and speed of each step of the top plate are constant, but on the other hand, the flow rate of the contrast medium may be faster or slower depending on the size of the blood vessel, and blood clots may flow near the affected area. As a result, the flow slows down, and the further you go to the periphery, the slower the speed becomes.
従つて、患部の位置がさまざまな条件の下で、
天板を一定間隔ですべてのステツプを移動させる
と、造影剤が流れ去つた後に撮影がなされると
か、またそれが到達していないのに撮影されるこ
とがあり、診断上必要な撮像が得られなかつた。 Therefore, the location of the affected area under various conditions,
If the top plate is moved through all steps at regular intervals, images may be taken after the contrast medium has flowed away, or images may be taken even before the contrast medium has arrived, making it difficult to obtain the images necessary for diagnosis. I couldn't help it.
(ハ) 目的
本考案の目的は、下肢患部の位置により造影剤
が流れる態様を察知できるもとに、これに対応し
て天板を間欠移動させ、その際移動距離と移動速
度を変えることができる、下肢血管Ｘ線連続撮影
装置を提供することである。(C) Purpose The purpose of this invention is to detect the flow of the contrast medium depending on the position of the affected part of the lower limb, and to intermittently move the top plate in response to this, and to change the distance and speed of movement. It is an object of the present invention to provide a continuous lower limb blood vessel X-ray imaging device.
(ニ) 構成
前記の目的は、Ｘ線管、Ｘ線制御器、造影剤注
入装置、連続撮影装置及び天板を有する下肢血管
Ｘ線連続撮影装置において、天板の速度可変型駆
動部と、天板の移動量検出器と、天板のステツプ
毎の移動距離とその速度との設定器と、Ｘ線制御
器からのステツプ指示により当該ステツプの天板
移動距離とその速度との各設定値切換器と、当該
設定速度に応じて駆動部を制御する駆動制御器
と、天板の当該設定距離と検出移動量との比較器
とを具備し、また該比較器の出力側を駆動部とＸ
線制御器に接続し、その比較器の出力により天板
移動の停止と同時にＸ線のばく射及び撮影が行わ
れることにより、達成される。(D) Configuration The above purpose is to provide a lower limb blood vessel continuous X-ray imaging device that includes an X-ray tube, an A tabletop movement amount detector, a setting device for the tabletop movement distance and speed for each step, and set values for the tabletop movement distance and speed at each step based on step instructions from the X-ray controller. It is equipped with a switching device, a drive controller that controls the drive section according to the set speed, and a comparator between the set distance of the top plate and the detected movement amount, and the output side of the comparator is connected to the drive section. X
This is achieved by connecting to a radiation controller and using the output of the comparator to simultaneously perform X-ray exposure and imaging when the top plate movement stops.
(ホ) 実施例
本考案の好適な実施例は、図面について説明さ
れる。(E) Embodiments A preferred embodiment of the present invention will be explained with reference to the drawings.
第１図は、本考案による１実施例の外観図であ
り、第２図はブロツク図である。 FIG. 1 is an external view of one embodiment of the present invention, and FIG. 2 is a block diagram.
両図共に示されているのが、クラツチ５と速度
可変型モータ６との天板駆動部、連続撮影装置１
０、造影剤注入装置１１及びＸ線管１２である。
第１図のみでは、他に、絞り２１、天板２２、検
診台２３、患者２４、フイルム、マガジン２５、
フイルム２６及び床２７が現われている。なお、
ｌは設定距離及びｖは設定速度を示し、それらの
サフイツクスは天板２２の移動ステツプ順位を意
味する。従来例では、l1＝l2＝l3＝l4かつv1＝v2＝
v3＝v4であつた。 What is shown in both figures is the top plate drive unit consisting of the clutch 5 and the variable speed motor 6, and the continuous shooting device 1.
0, a contrast agent injection device 11 and an X-ray tube 12.
In FIG. 1 alone, there is also an aperture 21, a top plate 22, an examination table 23, a patient 24, a film, a magazine 25,
A film 26 and a floor 27 are exposed. In addition,
l indicates a set distance and v indicates a set speed, and their suffixes mean the moving step order of the top plate 22. In the conventional example, l 1 = l 2 = l 3 = l 4 and v 1 = v 2 =
It was v 3 = v 4 .
第２図では、Ａが、例えば、プログラム盤面と
してされる設定器であり、１が距離設定部、８が
速度設定部である。２は切換器、３は比較器ない
しオペアンプ、４は天板２２の移動量検出器、５
と６は天板駆動部、７はＸ線制御器、９はコント
ロールパツクないし駆動制御器、１０は撮影装
置、１１は造影剤注入装置、１２はＸ線管であ
る。 In FIG. 2, A is a setting device, for example, a program board, 1 is a distance setting section, and 8 is a speed setting section. 2 is a switch, 3 is a comparator or operational amplifier, 4 is a movement amount detector of the top plate 22, 5
, 6 is a top drive unit, 7 is an X-ray controller, 9 is a control pack or drive controller, 10 is an imaging device, 11 is a contrast agent injection device, and 12 is an X-ray tube.
まず、造影剤注入装置１１により、患者２４に
造影剤が注入される。これにより、連続撮影装置
１０のフイルム圧着信号により、Ｘ線制御器７か
らＸ線ばく射信号がＸ線管１２に与えられ、Ｘ線
ばく射により１枚目の撮影が完了すると同時に、
Ｘ線制御器７から天板２２を移動させる信号が切
換器２に送られ、次のステツプへの条件、例え
ば、速度、間隔、撮影条件などの切替がなされ
る。プログラム盤面Ａから距離設定１と速度設定
部８の設定値が入力され、それがオペアンプ３に
入力され、その時、天板移動量検出器４との間で
差が求められる。差がある場合には、距離設定値
とバランスする点まで、オペアンプ３から出力が
出て、モータ６とクラツチ５が動作し、天板２２
が動く。他方、その時の速度設定値はコントロー
ルパツク９に入力され、その出力がモータ６に入
力され、その速度でモータ６は回転する。天板２
２が移動し、距離設定値まで移動すると、オペア
ンプ３の出力が切れ、モータは停止すると共に、
その信号がＸ線制御器７に送られ、そこからＸ線
管１２へばく射信号が出力され、同時に撮影が行
なわれる。これらの一連の動作のステツプ段数
は、例えば、Ｘ線制御器７に設定され、繰返しご
とにダウンカウントして、リセツトになれば１回
の検査が終わる。 First, a contrast medium is injected into the patient 24 by the contrast medium injection device 11 . As a result, an X-ray exposure signal is given to the X-ray tube 12 from the X-ray controller 7 in response to the film compression signal of the continuous imaging device 10, and at the same time the first film is photographed by X-ray exposure.
A signal for moving the top plate 22 is sent from the X-ray controller 7 to the switching device 2, and the conditions for the next step, such as speed, interval, and imaging conditions, are changed. The distance setting 1 and the setting values of the speed setting section 8 are inputted from the program board A, and inputted to the operational amplifier 3, and at that time, the difference between them and the top plate movement amount detector 4 is determined. If there is a difference, the operational amplifier 3 outputs an output until it balances with the distance setting value, the motor 6 and clutch 5 operate, and the top plate 22
moves. On the other hand, the speed setting value at that time is input to the control pack 9, its output is input to the motor 6, and the motor 6 rotates at that speed. Top plate 2
2 moves and reaches the distance setting value, the output of operational amplifier 3 is cut off, the motor stops, and
The signal is sent to the X-ray controller 7, from which an exposure signal is output to the X-ray tube 12, and imaging is performed at the same time. The number of steps in these series of operations is set, for example, in the X-ray controller 7, and is counted down each time it is repeated, and when it is reset, one examination is completed.
移動距離設定部１は、例えば、ポテンシヨメー
タ、エンコーダなどを複数個設けて構成すること
ができる。駆動部６は速度制御型ないしパルスモ
ータのような速度可変型が必要である。モータ６
の出力軸側にクラツチ５を設けるが、メカニカ
ル、電磁的或いはマグネツト電磁式でもよい。 The moving distance setting section 1 can be configured by providing a plurality of potentiometers, encoders, etc., for example. The drive unit 6 needs to be a speed control type or a variable speed type such as a pulse motor. motor 6
A clutch 5 is provided on the output shaft side of the clutch, but it may be of a mechanical, electromagnetic or magnetic type.
なお、設定距離ｌと設定速度ｖとから単位距離
当りの時間が算出できるので、移動量検出器４と
比較器３とに代えてタイマを設置することも可能
である。 Note that since the time per unit distance can be calculated from the set distance l and the set speed v, it is also possible to install a timer in place of the movement amount detector 4 and the comparator 3.
(ヘ) 効果
本考案は、造影剤の流れ速度に応じ、例えば、
大腿部では流れが早いため、ステツプの間隔を長
くし、その速度も大きく設定し、他方患部とか末
梢部では、その動きが遅いため間隔を短く、その
速度も小さく設定し、盤面上で予じめ加減がで
き、従つて、空撮影をすることなく、またそれに
より不必要なＸ線量ばく射が避けられるという効
果を奏する。(f) Effects The present invention can, for example,
In the thigh area, the flow is fast, so the step interval is set long and the speed is set high.On the other hand, in the affected area and distal area, the movement is slow, so the step interval is shortened and the speed is set small, and the step interval is set to be short and the speed is set low. Therefore, there is no need for aerial photography, and thereby unnecessary exposure to X-rays can be avoided.
第１図は、本考案による１実施例を示した外観
図、第２図はそのブロツク図である。
Ａは距離・速度設定器、２は切換器、３は比較
器、４は移動量検出器、５はクラツチ、６はモー
タ、７はＸ線制御器、９はコントローラ、１０は
連続撮影装置、１１は造影剤注入装置、１２はＸ
線管である。
FIG. 1 is an external view showing one embodiment of the present invention, and FIG. 2 is a block diagram thereof. A is a distance/speed setting device, 2 is a switch, 3 is a comparator, 4 is a movement amount detector, 5 is a clutch, 6 is a motor, 7 is an X-ray controller, 9 is a controller, 10 is a continuous imaging device, 11 is a contrast agent injection device, 12 is an X
It is a wire tube.
Claims (1)
影装置及び天板を有する下肢血管Ｘ線連続撮影装
置において、天板の速度可変型駆動部と、天板の
移動量検出器と、天板のステツプ毎の移動距離と
その速度との設定器と、Ｘ線制御器からのステツ
プ指示により当該ステツプの天板移動距離とその
速度との各設定値切換器と、当該設定速度に応じ
て駆動部を制御する駆動制御器と、天板の当該設
定距離と検出移動量との比較器とを具備し、該比
較器の出力側が駆動部とＸ線制御器に接続されて
おり、その比較器の出力により天板移動の停止と
同時にＸ線のばく射及び撮影が行われることを特
徴とする、下肢血管Ｘ線連続撮影装置。 In a lower extremity blood vessel continuous X-ray imaging device having an X-ray tube, an A setting device for the moving distance and speed of the top plate for each step, a set value switch for the top plate moving distance and speed for each step according to step instructions from the X-ray controller, and a setting value switch for the top plate moving distance and speed for each step according to the step instruction from the A drive controller for controlling the drive unit, and a comparator for comparing the set distance of the top plate with the detected movement amount, and the output side of the comparator is connected to the drive unit and the X-ray controller. A continuous lower extremity blood vessel X-ray imaging device, characterized in that X-ray exposure and imaging are performed simultaneously with the stop of movement of the top plate based on the output of a comparator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16956983U JPS6076904U (en) | 1983-10-31 | 1983-10-31 | Continuous lower limb blood vessel X-ray imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16956983U JPS6076904U (en) | 1983-10-31 | 1983-10-31 | Continuous lower limb blood vessel X-ray imaging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6076904U JPS6076904U (en) | 1985-05-29 |
| JPH0327616Y2 true JPH0327616Y2 (en) | 1991-06-14 |
Family
ID=30370419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16956983U Granted JPS6076904U (en) | 1983-10-31 | 1983-10-31 | Continuous lower limb blood vessel X-ray imaging device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6076904U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000279400A (en) * | 1999-03-30 | 2000-10-10 | Hitachi Medical Corp | Pulse fluoroscopic apparatus |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2664934B2 (en) * | 1988-06-10 | 1997-10-22 | 株式会社日立メディコ | Pulsed X-ray fluoroscope |
| JP5762578B2 (en) * | 2014-01-08 | 2015-08-12 | 株式会社東芝 | X-ray diagnostic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5014214A (en) * | 1973-06-06 | 1975-02-14 | ||
| JPS5737439A (en) * | 1980-08-18 | 1982-03-01 | Tokyo Shibaura Electric Co | X-ray photographing apparatus |
| JPS57206000A (en) * | 1981-04-30 | 1982-12-17 | Philips Nv | X-ray generator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52102593U (en) * | 1976-02-02 | 1977-08-04 | ||
| JPS5910977Y2 (en) * | 1978-05-26 | 1984-04-05 | 株式会社日立メデイコ | Automatic bed top feeding mechanism |
-
1983
- 1983-10-31 JP JP16956983U patent/JPS6076904U/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5014214A (en) * | 1973-06-06 | 1975-02-14 | ||
| JPS5737439A (en) * | 1980-08-18 | 1982-03-01 | Tokyo Shibaura Electric Co | X-ray photographing apparatus |
| JPS57206000A (en) * | 1981-04-30 | 1982-12-17 | Philips Nv | X-ray generator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000279400A (en) * | 1999-03-30 | 2000-10-10 | Hitachi Medical Corp | Pulse fluoroscopic apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6076904U (en) | 1985-05-29 |
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