JP3485974B2 - Medical bed apparatus - Google Patents
Medical bed apparatusInfo
- Publication number
- JP3485974B2 JP3485974B2 JP22047094A JP22047094A JP3485974B2 JP 3485974 B2 JP3485974 B2 JP 3485974B2 JP 22047094 A JP22047094 A JP 22047094A JP 22047094 A JP22047094 A JP 22047094A JP 3485974 B2 JP3485974 B2 JP 3485974B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- top plate
- bed
- patient
- medical
- 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 - Fee Related
Links
- 230000005484 gravity Effects 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 8
- 238000004260 weight control Methods 0.000 claims description 7
- 238000001959 radiotherapy Methods 0.000 description 21
- 230000003902 lesion Effects 0.000 description 18
- 230000005855 radiation Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 5
- 238000012795 verification Methods 0.000 description 4
- 241001669679 Eleotris Species 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Apparatus For Radiation Diagnosis (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、放射線治療装置やＸ線
ＣＴ装置等の医療用装置に用いられる医療用寝台装置に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical bed apparatus used for a medical apparatus such as a radiotherapy apparatus or an X-ray CT apparatus.
【０００２】[0002]
【従来の技術】近年、患者の病変部に対して細い放射線
を集中させ、この病変部のみを破壊する放射線治療が行
われている。このような放射線治療の場合、病変部の位
置はＸ線ＣＴ装置を用いて±１mm程度の制度で特定し得
るようになっている。このため、放射線治療装置とＸ線
ＣＴ装置とで寝台を共用して放射線照射位置の精度を上
げるようにしている。2. Description of the Related Art In recent years, radiation therapy has been performed in which fine radiation is concentrated on a lesion area of a patient and only the lesion area is destroyed. In the case of such radiotherapy, the position of the lesion can be specified with an accuracy of ± 1 mm using an X-ray CT apparatus. For this reason, the radiation treatment apparatus and the X-ray CT apparatus share the bed to improve the accuracy of the radiation irradiation position.
【０００３】図８、図９は、放射線治療装置とＸ線ＣＴ
装置とで共用される寝台を示している。なお図８は、放
射線治療装置により使用される場合の状態を示し、図９
はＸ線ＣＴ装置により使用される場合の状態を示してい
る。FIGS. 8 and 9 show a radiotherapy apparatus and an X-ray CT.
The bed shared with the device is shown. Note that FIG. 8 shows a state in which the radiotherapy apparatus is used, and FIG.
Shows the state when used by the X-ray CT apparatus.
【０００４】図８、図９に示すように寝台１００は、患
者が載置される天板１０１を有する天板部１０３と、天
板部１０３を支持する支持部１０５とから成る。天板部
１０３は、天板部回転軸１０３ａを中心に回転する。ま
た支持部１０５は、支持部回転軸１０５ａを中心とする
円周に沿って敷設されるレール１０５ｂに沿って回動す
る。As shown in FIGS. 8 and 9, the bed 100 is composed of a top plate portion 103 having a top plate 101 on which a patient is placed, and a support portion 105 for supporting the top plate portion 103. The top plate portion 103 rotates about a top plate portion rotation shaft 103a. Further, the support portion 105 rotates along a rail 105b laid along a circumference centered on the support portion rotation shaft 105a.
【０００５】また、放射線治療装置とＸ線ＣＴ装置の位
置関係は、図１０に示すように、通常放射線治療装置に
対して略９０度の位置にＸ線ＣＴ装置が来るように配置
される。なお、図１１は、寝台１００の天板部１０３が
放射線治療装置１１０側にあるときの側面図であり、図
１２は、寝台１００の天板部１０３がＸ線ＣＴ装置１３
０側にあるときの側面図である。As for the positional relationship between the radiation treatment apparatus and the X-ray CT apparatus, as shown in FIG. 10, the X-ray CT apparatus is arranged so as to come at a position of approximately 90 degrees with respect to the normal radiation treatment apparatus. 11 is a side view when the couchtop 103 of the bed 100 is on the side of the radiation therapy apparatus 110, and FIG. 12 is a plan view of the couchtop 103 of the bed 100 in the X-ray CT apparatus 13.
It is a side view when it is on the 0 side.
【０００６】放射線治療装置１１０を用いて放射線治療
を行う場合、まず、寝台１００の天板１０１をＸ線ＣＴ
装置１３０側に回転させる。そしてＸ線ＣＴ装置１３０
を用いて病変部の特定を行う。その後、放射線治療装置
１１０側に天板１０１を回転させ、Ｘ線ＣＴ装置１３０
により特定された病変部に対して細い放射線を集中させ
て照射し、治療を行うというものである。When performing radiation treatment using the radiation treatment apparatus 110, first, the top plate 101 of the bed 100 is subjected to X-ray CT.
The device 130 is rotated. Then, the X-ray CT apparatus 130
Use to identify the lesion. After that, the top plate 101 is rotated toward the radiotherapy apparatus 110, and the X-ray CT apparatus 130 is rotated.
The treatment is performed by concentrating and irradiating fine radiation to the lesion area specified by.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、従来の
寝台１００は、天板１０１を放射線治療装置１１０側に
回転させたときは天板１０１と支持部１０５とが平行と
なるが（図８、図１０および図１１参照）、天板１０１
をＸ線ＣＴ装置１３０側に回転させたときは天板１０１
と支持部１０５とが略９０度で交差する位置となり（図
９、図１０および図１２参照）、天板１０１を放射線治
療装置１１０側に回転させたときに比べ、天板１０１を
Ｘ線ＣＴ装置１３０側に回転させたときの方が剛性が低
くなる。これにより、天板１０１を放射線治療装置１１
０側に回転させたときのたわみ量α1 に比べ、天板１０
１をＸ線ＣＴ装置１３０側に回転させたときのたわみ量
α2の方が多くなる。However, in the conventional bed 100, when the table 101 is rotated toward the radiotherapy apparatus 110, the table 101 and the support 105 are parallel to each other (FIG. 8, FIG. 8). 10 and FIG. 11), the top plate 101
When rotating the X-ray CT apparatus 130 side, the top plate 101
And the support portion 105 intersect at an angle of approximately 90 degrees (see FIGS. 9, 10 and 12), and the top plate 101 is X-ray CT compared to when the top plate 101 is rotated to the radiotherapy apparatus 110 side. The rigidity becomes lower when rotated toward the device 130 side. As a result, the top plate 101 is attached to the radiation treatment apparatus 11
Compared with the deflection amount α 1 when rotated to the 0 side, the top plate 10
The deflection amount α 2 when 1 is rotated to the X-ray CT apparatus 130 side is larger.
【０００８】このため、Ｘ線ＣＴ装置１３０を用いて精
度良く病変部の位置を特定しても、天板１０１のたわみ
量がＸ線ＣＴ装置１３０側に回転させた場合と放射線治
療装置１１０側に回転させた場合で異なり、正確に放射
線を病変部に照射できないという問題が生じる。Therefore, even if the position of the lesion is accurately specified by using the X-ray CT apparatus 130, the deflection amount of the top plate 101 is rotated to the X-ray CT apparatus 130 side and the radiotherapy apparatus 110 side. The problem arises that radiation cannot be accurately applied to the lesion, which is different when it is rotated.
【０００９】本発明は上記事情に鑑みて成されたもので
あり、その目的は、正確に病変部を治療することが可能
な医療用寝台装置を提供することにある。The present invention has been made in view of the above circumstances, and an object thereof is to provide a medical bed apparatus capable of accurately treating a lesion.
【００１０】[0010]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、患者を載置する天板と、前記天板を移動
可能に支持する天板部と、前記天板部を回転移動可能に
支持する支持部と、前記天板に載置される患者の体重を
測定する患者体重測定部と、予め設定された基準位置か
らの前記天板の引き出し量を測定する天板位置測定部
と、前記患者体重測定部による測定結果及び前記天板位
置測定部による測定結果と、予め設定された基準体重及
び前記基準位置との差を算出する重量照合部と、前記医
療用寝台装置に移動可能に設けられた錘と、前記重量照
合部による算出結果に基づいて該医療用寝台装置の重心
位置が前記天板部の回転移動における回転軸近傍になる
ように前記錘の位置を制御する錘制御部とを備えること
を特徴とするものである。 In order to achieve the above object, the present invention provides a table on which a patient is placed and a table for moving the table.
The top plate part that supports it and the top plate part can be rotated
The support part to support and the weight of the patient placed on the top plate
The patient weight measurement unit to be measured and the preset reference position
And a top position measuring unit for measuring the amount of the top drawn
And the measurement result by the patient weight measuring unit and the top position
The measurement results by the stand measurement unit and the preset reference weight and
And a weight matching unit that calculates the difference between the reference position and
A weight provided movably on the medical bed apparatus and the weight illuminator.
Center of gravity of the medical couch device based on the calculation result by the joint unit
The position is near the rotation axis in the rotational movement of the top plate.
And a weight control unit that controls the position of the weight.
It is characterized by.
【００１１】さらに、前記支持部の断面形状が円形であ
ることを特徴とするものである。 Further, the cross-sectional shape of the supporting portion is circular.
It is characterized by that.
【００１２】[0012]
【００１３】[0013]
【００１４】[0014]
【作用】上記構成によれば、錘により、天板部の回転移
動によらず、常に寝台の重心位置を天板部の回転移動に
おける回転軸近傍に位置するようにしたので、寝台の回
転位置に関係なく寝台の剛性を常に一定にすることがで
き、天板のたわみなどによる位置の変化量がほぼ一定と
なり、結果として例えば、複数の医療用装置として検査
装置と治療装置と用いた場合にこの装置間で患者を移動
したとしても、検査装置で特定した病変部位の位置が治
療装置においてずれることがなく、正確に放射線を病変
部位に照射することができ、確実に治療を行うことがで
きる。さらに、天板部を回転移動可能に支持する支持部
を断面形状が略円形である形状にすることにより、天板
部を回転移動により天板部の位置が変化しても、常に剛
性を一定にすることができ、結果として、上記と同様
に、正確に放射線を病変部位に照射することができ、確
実に治療を行うことができる。 According to the above construction, the position of the center of gravity of the bed is always located in the vicinity of the rotation axis of the rotary movement of the couchtop regardless of the rotational movement of the couchtop due to the weight. The rigidity of the bed can always be made constant regardless of the position, and the amount of change in the position due to the deflection of the top plate becomes almost constant, and as a result, for example, when using an inspection device and a treatment device as a plurality of medical devices. Even if the patient is moved between the devices, the position of the lesion site specified by the inspection device does not shift in the treatment device, radiation can be accurately applied to the lesion site, and reliable treatment can be performed. . Furthermore, by making the support part that rotatably supports the top plate part have a substantially circular cross-sectional shape, the rigidity is always constant even if the position of the top plate part changes due to the rotational movement of the top plate part. As a result, similarly to the above, the radiation can be accurately applied to the lesion site, and the treatment can be reliably performed.
【００１５】[0015]
【００１６】[0016]
【００１７】[0017]
【００１８】[0018]
【実施例】本発明に係る医療用寝台装置の第１実施例を
図面を参照して説明する。図１は、第１実施例の医療用
寝台装置の外観を示す斜視図である。また図２は、第１
実施例の医療用寝台装置の機能構成を示すブロック図で
ある。なお、図８、図９に示す従来の寝台１００と同一
部材には同一符号を付して説明は省略する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the medical bed apparatus according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing the outer appearance of the medical bed apparatus according to the first embodiment. In addition, FIG.
It is a block diagram which shows the function structure of the medical bed apparatus of an Example. The same members as those of the conventional bed 100 shown in FIGS. 8 and 9 are designated by the same reference numerals, and the description thereof will be omitted.
【００１９】図１、図２に示すように第１実施例の医療
用寝台装置１０は、従来の寝台１００の天板引き出し側
の先端に設けられ、床からの高さを検出するセンサー１
１と、天板部１０３、支持部１０５もしくは寝台１００
の外部に設けられ、天板１０１をＸ線ＣＴ装置１３０側
に回転させたときのたわみ量（天板１０１の床からの高
さ）と、天板１０１を放射線治療装置１１０側に回転さ
せたときのたわみ量との差を求める距離照合部１３と、
天板部１０３、支持部１０５もしくは寝台１００の外部
に設けられ、天板部１０３の上下動を制御するととも
に、距離照合部１３により求められた前記たわみ量の差
を基に天板部１０３の高さを補正する上下動制御部１５
と、寝台１００内に設けられ、天板部１０３を上下させ
る上下駆動部１７とを備えている。As shown in FIGS. 1 and 2, the medical bed apparatus 10 according to the first embodiment is provided at the tip of the conventional bed 100 on the side where the tabletop is pulled out, and is a sensor 1 for detecting the height from the floor.
1 and the top 103, the support 105, or the bed 100
And the amount of deflection when the tabletop 101 is rotated to the X-ray CT apparatus 130 side (the height of the tabletop 101 from the floor) and the tabletop 101 is rotated to the radiotherapy apparatus 110 side. A distance matching unit 13 for obtaining a difference from the deflection amount
The table 103 is provided outside the table 103, the support 105, or the bed 100 to control the vertical movement of the table 103, and the table 103 of the table 103 is adjusted based on the difference in the amount of deflection obtained by the distance matching unit 13. Vertical movement control unit 15 for correcting height
And a vertical drive unit 17 that is provided in the bed 100 and that moves the top 103 up and down.
【００２０】なお、センサー１１は光の反射を利用した
もの、超音波の反射を利用したもの、フォーカスを利用
したもの等、床からの高さを検出できるものであれば何
を用いても良い。Any sensor can be used as the sensor 11 as long as it can detect the height from the floor, such as one using light reflection, one using ultrasonic reflection, and one using focus. .
【００２１】次に第１実施例の医療用寝台装置１０の動
作を図１、図１０を用いて説明する。Next, the operation of the medical bed apparatus 10 of the first embodiment will be described with reference to FIGS.
【００２２】まず、寝台１００をＸ線ＣＴ装置１３０側
（図１０参照）に回転させて病変部の位置を特定する。
このときセンサー１１は、床からの高さＨ1 を検出して
それを距離照合部１３に供給する。First, the bed 100 is rotated toward the X-ray CT apparatus 130 side (see FIG. 10) to specify the position of the lesion.
At this time, the sensor 11 detects the height H 1 from the floor and supplies it to the distance matching unit 13.
【００２３】そして、Ｘ線ＣＴ装置１３０により病変部
の位置が特定された後、寝台１００を放射線治療装置１
１０側に回転させる。放射線治療装置１１０側に寝台１
００が回転されるとセンサー１１は、床からの高さＨ2
を検出して距離照合部１３に供給する。距離照合部１３
では、高さＨ1 と高さＨ2 の差を求め、その結果を上下
動制御部１５に供給する。上下動制御部１５では、高さ
Ｈ1 と高さＨ2 の差を基に、前記差を無くす方向、すな
わち下方にＨ1 −Ｈ2 分、天板部１０３を上下駆動部１
７により移動させる。After the position of the lesion is specified by the X-ray CT apparatus 130, the bed 100 is placed on the radiotherapy apparatus 1.
Rotate to 10 side. Bed 1 on the side of the radiotherapy device 110
When 00 is rotated, the sensor 11 moves to the height H 2 above the floor.
Is detected and supplied to the distance matching unit 13. Distance matching unit 13
Then, the difference between the height H 1 and the height H 2 is obtained, and the result is supplied to the vertical movement control unit 15. Based on the difference between the height H 1 and the height H 2 , the vertical movement control unit 15 moves the top plate unit 103 up and down by the amount of H 1 −H 2 in the direction in which the difference is eliminated, that is, downward.
Move by 7.
【００２４】こうして、天板部１０３をＸ線ＣＴ装置１
３０側に回転させたときの天板１０１のたわみ量と天板
部１０３を放射線治療装置１１０側に回転させたときの
天板１０１のたわみ量の差を補正することができる。Thus, the top plate 103 is attached to the X-ray CT apparatus 1
It is possible to correct the difference between the amount of deflection of the top 101 when rotated to the 30 side and the amount of deflection of the top 101 when the top 103 is rotated to the radiotherapy apparatus 110 side.
【００２５】このように第１実施例の医療用寝台装置１
０では、床からの高さを検出するセンサー１１を設け、
天板１０１をＸ線ＣＴ装置１３０側に回転させたときの
たわみ量（天板１０１の床からの高さ）と、天板１０１
を放射線治療装置１１０側に回転させたときのたわみ量
との差を基に、天板部１０３の高さを制御しているの
で、天板部１０３をＸ線ＣＴ装置１３０側に回転させた
ときの天板１０１のたわみ量と天板部１０３を放射線治
療装置１１０側に回転させたときの天板１０１のたわみ
量の差を補正することができ、正確に放射線を病変部に
照射することが可能となる。Thus, the medical bed apparatus 1 of the first embodiment
At 0, a sensor 11 for detecting the height from the floor is provided,
The amount of deflection (the height of the top plate 101 from the floor) when the top plate 101 is rotated toward the X-ray CT apparatus 130 side, and the top plate 101
Since the height of the top plate 103 is controlled based on the difference between the deflection amount when the laser beam is rotated to the radiotherapy device 110 side, the top plate part 103 is rotated to the X-ray CT apparatus 130 side. It is possible to correct the difference between the deflection amount of the top plate 101 at this time and the deflection amount of the top plate 101 when the top plate portion 103 is rotated toward the radiotherapy device 110 side, and to accurately irradiate the lesion area with radiation. Is possible.
【００２６】なお、第１実施例の医療用寝台装置１０の
センサー１１は、天板１０１の引き出される側の先端に
設けられているが、これに限らず、図３に示すように放
射線治療装置１１０のアイソセンタ軸１１０ａ上付近に
設けるようにしても良い。Although the sensor 11 of the medical bed apparatus 10 of the first embodiment is provided at the tip of the top plate 101 on the side where it is pulled out, the present invention is not limited to this, and as shown in FIG. It may be provided near the isocenter shaft 110a of 110.
【００２７】また、第１実施例の医療用寝台装置１０で
は天板部１０３の高さ方向のみの補正を行っているが、
これに限らず、他の方向、患者の体軸方向のずれや、前
記体軸方向と直行する方向のずれを補正するようにして
も良い。Further, in the medical bed apparatus 10 of the first embodiment, the correction is made only in the height direction of the table 103,
The present invention is not limited to this, and it may be possible to correct a deviation in another direction, the patient's body axis direction, or a deviation in a direction orthogonal to the body axis direction.
【００２８】次に、本発明に係る医療用寝台装置の第２
実施例を図面を参照して説明する。図４は、第２実施例
の医療用寝台装置の外観を示す図である。また図５は、
第２実施例の医療用寝台装置の機能構成を示すブロック
図である。なお、図８、図９に示す従来の寝台１００と
同一部材には同一符号を付して説明は省略する。Next, the second medical bed device according to the present invention
Embodiments will be described with reference to the drawings. FIG. 4 is a view showing the outer appearance of the medical bed apparatus according to the second embodiment. In addition, FIG.
It is a block diagram which shows the function structure of the medical bed apparatus of 2nd Example. The same members as those of the conventional bed 100 shown in FIGS. 8 and 9 are designated by the same reference numerals, and the description thereof will be omitted.
【００２９】第２実施例の医療用寝台装置２０は、図４
に示すように天板部１０３にダミーウェイト２１を備
え、さらに、寝台１００の重心位置を天板部回転軸１０
３ａ上にしてモーメントが支持部１０５に掛かりにくい
寝台１００を作製し、予め決められている基準体重およ
び天板１０１の基準位置と、患者の体重および天板１０
１の位置との差を基にダミーウェイト２１の位置を天板
部回転軸１０３ａから離したり近づけたりすることによ
り、寝台１００の重心位置を常に天板部回転軸１０３ａ
上にするというものである。The medical bed apparatus 20 of the second embodiment is shown in FIG.
The dummy weight 21 is provided on the top 103 as shown in FIG.
The bed 100 on which the moment is less likely to be applied to the support portion 105 is manufactured on the 3a, and the predetermined reference weight and the reference position of the top 101, the weight of the patient, and the top 10 are prepared.
By moving the position of the dummy weight 21 away from or near the top plate part rotation shaft 103a based on the difference from the position of 1, the center of gravity of the bed 100 is always kept at the top plate part rotation shaft 103a.
It is said to be on.
【００３０】図４、図５に示すように医療用寝台装置２
０は、重心位置を天板部回転軸１０３ａ上にして寝台１
００の天板部１０３の天板１０１引き出し側と対向する
側に設けられたダミーウェイト２１と、天板部１０３に
設けられ、天板１０１に載置される患者の体重を測定す
る患者体重測定部２３と、天板部１０３に設けられ、天
板１０１の引き出し量を検出する天板位置測定部２５
と、患者体重測定部２３により測定された患者の体重お
よび天板位置測定部２５により測定された天板１０１の
引き出し量と、予め決められている基準体重（８０kg）
および天板１０１の基準位置（引き出し量０）との差を
求める重量照合部２７と、重量照合部２７により求めら
れた前記患者の体重および天板１０１の引き出し量と、
予め決められている基準体重および天板１０１の基準位
置との差を基にダミーウェイト２１の位置を天板部回転
軸１０３ａから離したり近づけたりさせるダミーウェイ
ト制御部２９と、ダミーウェイト制御部２９からの命令
によりダミーウェイト２１の位置を移動させるダミーウ
ェイト駆動部３１とを備えている。As shown in FIGS. 4 and 5, the medical bed device 2 is used.
0 is the bed 1 with the center of gravity located on the top plate rotation axis 103a.
00 for measuring the weight of the patient placed on the table 101 and the dummy weight 21 provided on the side of the table 103 facing the drawer side of the table 101. And a top position measuring unit 25 that is provided on the top 103 and detects the amount of the top 101 pulled out.
And the weight of the patient measured by the patient weight measuring unit 23, the amount of pulling out the top 101 measured by the top position measuring unit 25, and a predetermined reference weight (80 kg)
And a weight collating unit 27 that obtains a difference from a reference position (drawing amount 0) of the top plate 101, the weight of the patient and the pulling amount of the top plate 101 that are obtained by the weight collating unit 27,
A dummy weight control unit 29 that moves the position of the dummy weight 21 away from or near the top plate rotation axis 103a based on a difference between a predetermined reference weight and a reference position of the top plate 101, and a dummy weight control unit 29. And a dummy weight drive unit 31 for moving the position of the dummy weight 21 in response to a command from.
【００３１】なお、患者体重測定部２３は、天板１０１
に歪みセンサーを設け、天板１０１の歪みによって体重
を測定するもの、天板１０１の裏面側に体重計を設けて
体重を測定するもの等、天板１０１上で体重を測定でき
るものであれば何を用いても良い。がある。また、天板
位置測定部２５は、エンコーダを用いて天板１０１の位
置を測定するもの、光の反射を利用したもの、超音波の
反射を利用したもの等、天板１０１の位置を測定できる
ものであれば何を用いても良い。It should be noted that the patient weight measuring unit 23 includes a top board 101.
If the weight can be measured on the top plate 101, such as a strain sensor provided on the top plate 101 to measure the weight by the strain of the top plate 101, a weight scale provided on the back side of the top plate 101 to measure the weight, and the like. Any may be used. There is. Further, the top plate position measuring unit 25 can measure the position of the top plate 101, such as one that measures the position of the top plate 101 using an encoder, one that uses reflection of light, one that uses reflection of ultrasonic waves, or the like. Any thing may be used as long as it is a thing.
【００３２】次に第２実施例の医療用寝台装置２０の動
作を説明する。まず、天板部１０３の所定の位置にダミ
ーウェイト２１を移動可能に備え、さらに、重心位置を
天板部回転軸１０３ａ上にした寝台１００を作製する。
なお、寝台１００の重心位置を天板部回転軸１０３ａ上
にするには、寝台１００の天板部回転軸１０３ａ近辺に
掛かる重さを重くすることにより行う。この寝台１００
患者体重測定部２３と天板位置測定部２５を設けてお
く。Next, the operation of the medical bed apparatus 20 of the second embodiment will be described. First, the bed 100 is provided in which the dummy weight 21 is movably provided at a predetermined position on the top plate 103, and the center of gravity is located on the top plate rotation axis 103a.
The position of the center of gravity of the bed 100 is set on the top plate rotation axis 103a by increasing the weight of the bed 100 near the top rotation axis 103a. This sleeper 100
A patient weight measuring unit 23 and a tabletop position measuring unit 25 are provided.
【００３３】この状態で患者体重測定部２３は、天板１
０１に載置された患者の体重を測定し、その結果を重量
照合部２７に供給する。また、病変部をＣＴセンタもし
くはアイソセンタに合わせるために天板１０１が図６に
示すように距離Ｌ分、引き出される。天板位置測定部２
５は、この天板１０１の引き出し量を測定し、その結果
を重量照合部２７に供給する。In this state, the patient weight measuring unit 23 is operated by the top board 1.
The weight of the patient placed on 01 is measured, and the result is supplied to the weight matching unit 27. Further, the top plate 101 is pulled out by a distance L as shown in FIG. 6 in order to align the lesion part with the CT center or the isocenter. Top position measuring unit 2
Reference numeral 5 measures the amount of pulling out the top plate 101, and supplies the result to the weight matching unit 27.
【００３４】重量照合部２７は、患者重量測定部２３に
より測定された患者の体重および天板位置測定部２５に
より測定された天板１０１の位置と、予め決められてい
る基準体重（８０kg）および天板１０１の基準位置（引
き出し量０）との差を求める。なおこのとき基準体重は
８０kgに設定されるがこれに限定されるものではない。The weight collating unit 27 includes the weight of the patient measured by the patient weight measuring unit 23 and the position of the top 101 measured by the top position measuring unit 25, and a predetermined reference weight (80 kg) and The difference from the reference position of the top plate 101 (withdrawal amount 0) is calculated. At this time, the reference weight is set to 80 kg, but the present invention is not limited to this.
【００３５】その後、ダミーウェイト制御部２９は、重
量照合部２７により求められた前記患者の体重および天
板１０１の引き出し量と、予め決められている基準体重
および天板１０１の基準位置との差に対応させてダミー
ウェイト２１の位置を天板部回転軸１０３ａから離した
り近づけたりさせる命令をダミーウェイト駆動部３１に
出力する。この命令に対応させてダミーウェイト駆動部
３１は、ダミーウェイト２１の位置を天板部回転軸１０
３ａから離したり近づけたりする。After that, the dummy weight control unit 29 determines the difference between the weight of the patient and the amount of pulling out the top 101 determined by the weight comparing unit 27 and the predetermined reference weight and the reference position of the top 101. The dummy weight drive unit 31 is instructed to move the position of the dummy weight 21 away from or near the top plate rotation shaft 103a. In response to this command, the dummy weight drive unit 31 changes the position of the dummy weight 21 to the top plate rotation shaft 10.
Move away from or near 3a.
【００３６】こうして、患者の体重、天板１０１の位置
が変化してもダミーウェイト２１の位置が移動するた
め、寝台１００の重心位置は常に天板部回転軸１０３ａ
上に来ることとなる。In this way, the position of the center of gravity of the bed 100 is always the top plate rotating shaft 103a because the position of the dummy weight 21 moves even if the weight of the patient and the position of the top plate 101 change.
Will come to the top.
【００３７】このように第２実施例の医療用寝台装置２
０では、天板部１０３にダミーウェイト２１を移動可能
に設け、さらに、寝台１００の重心位置を天板部回転軸
１０３ａ上にし、予め決められている基準体重および天
板１０１の基準位置と、患者の体重および天板１０１の
位置との差を基にダミーウェイト２１の位置を天板部回
転軸１０３ａから離したり近づけたりすることにより、
寝台１００の重心位置を常に天板部回転軸１０３ａ上に
しているので、寝台１００の剛性が天板部１０３の回転
位置に関係なく殆ど一定となる。このため、天板部１０
３の回転位置に関係なく天板１０１のたわみ量が殆ど一
定となり、正確に病変部を治療することが可能となる。Thus, the medical bed apparatus 2 of the second embodiment.
At 0, the dummy weight 21 is movably provided on the top 103, and the position of the center of gravity of the bed 100 is set on the top rotation shaft 103a, and the predetermined reference weight and the reference position of the top 101 are set. By moving the position of the dummy weight 21 away from or near the top plate rotation shaft 103a based on the difference between the weight of the patient and the position of the top plate 101,
Since the center of gravity of the bed 100 is always on the top plate rotation axis 103a, the rigidity of the bed 100 is almost constant regardless of the rotation position of the top 103. Therefore, the top plate portion 10
Regardless of the rotational position of 3, the amount of deflection of the top plate 101 becomes almost constant, and the lesion area can be treated accurately.
【００３８】なお、第２実施例の医療用寝台装置２０で
は、ダミーウェイト２１を移動可能に設けて寝台１００
の重心位置を補正しているが、これに限らず、寝台１０
０の重心位置を天板部回転軸１０３ａ上にするのみでも
良い。この場合、寝台１００の重量を患者の体重より十
分重くすることにより、患者の体重に関係なく寝台１０
０の重心位置を天板部回転軸１０３ａ上にすることがで
きる。In the medical bed apparatus 20 of the second embodiment, the dummy weight 21 is movably provided and the bed 100 is provided.
The center of gravity of the bed is corrected, but the position of the bed 10 is not limited to this.
The position of the center of gravity of 0 may be only on the top plate rotation shaft 103a. In this case, by making the weight of the bed 100 sufficiently larger than the weight of the patient, the bed 10 can be irrelevant regardless of the weight of the patient.
The position of the center of gravity of 0 can be set on the top plate rotation shaft 103a.
【００３９】また、第２実施例の医療用寝台装置２０の
支持部１０５の断面形状は長方形であるが、これに限ら
ず、支持部１０５の断面形状を図７に示すように円形に
しても良い。これにより、天板部１０３の回転位置に関
係なく寝台１００の剛性を常に一定にすることが可能と
なる。Further, although the supporting portion 105 of the medical bed apparatus 20 of the second embodiment has a rectangular sectional shape, it is not limited to this, and the supporting portion 105 may have a circular sectional shape as shown in FIG. good. As a result, the rigidity of the bed 100 can always be made constant regardless of the rotation position of the top 103.
【００４０】[0040]
【発明の効果】以上説明したように、本発明によれば、
寝台の回転位置に関係なく寝台の剛性をほぼ一定にする
ことができ、天板のたわみなどによる位置の変化量がほ
ぼ一定とすることができるので、例えば、複数の医療用
装置として検査装置と治療装置と用いた場合にこの装置
間で患者を移動したとしても、検査装置で特定した病変
部位の位置が治療装置においてずれることがなく、正確
に放射線を病変部位に照射することができ、確実に治療
を行うことができる。 As described above, according to the present invention,
Makes the bed's rigidity almost constant regardless of the rotating position of the bed.
And the amount of position change due to the
Since it can be kept constant, it can be used for multiple medical applications, for example.
This device when used as an inspection device and a treatment device
Lesions identified by the test device, even if the patient is moved between
The position of the part does not shift on the treatment device and is accurate
Radiation can be applied to the lesion site to ensure reliable treatment
It can be performed.
【００４１】[0041]
【００４２】[0042]
【００４３】[0043]
【図１】第１実施例の医療用寝台装置の外観を示す斜視
図である。FIG. 1 is a perspective view showing an appearance of a medical bed apparatus according to a first embodiment.
【図２】第１実施例の医療用寝台装置の機能構成を示す
ブロック図である。FIG. 2 is a block diagram showing a functional configuration of the medical bed apparatus according to the first embodiment.
【図３】センサーを放射線治療装置のアイソセンタ軸上
付近に設けた場合の例を示す説明図である。FIG. 3 is an explanatory diagram showing an example in which a sensor is provided near the isocenter axis of a radiotherapy apparatus.
【図４】第２実施例の医療用寝台装置の外観を示す図で
ある。FIG. 4 is a view showing the outer appearance of a medical bed apparatus according to a second embodiment.
【図５】第２実施例の医療用寝台装置の機能構成を示す
ブロック図である。FIG. 5 is a block diagram showing a functional configuration of a medical bed apparatus according to a second embodiment.
【図６】天板を引き出した場合を示す断面図である。FIG. 6 is a cross-sectional view showing a case where a top plate is pulled out.
【図７】支持部の断面形状を円形にした場合を示す斜視
図である。FIG. 7 is a perspective view showing a case where the support portion has a circular cross-sectional shape.
【図８】放射線治療装置側に寝台移動させた場合を示す
斜視図である。FIG. 8 is a perspective view showing a case where the bed is moved to the radiotherapy apparatus side.
【図９】Ｘ線ＣＴ装置側に寝台を移動させた場合を示す
斜視図である。FIG. 9 is a perspective view showing a case where the bed is moved to the X-ray CT apparatus side.
【図１０】放射線治療装置とＸ線ＣＴ装置と寝台の位置
関係を示す平面図である。FIG. 10 is a plan view showing a positional relationship among a radiation therapy apparatus, an X-ray CT apparatus, and a bed.
【図１１】放射線治療装置側に寝台移動させた場合を示
す断面図である。FIG. 11 is a cross-sectional view showing a case where the bed is moved to the radiotherapy apparatus side.
【図１２】Ｘ線ＣＴ装置側に寝台を移動させた場合を示
す断面図である。FIG. 12 is a cross-sectional view showing a case where the bed is moved to the X-ray CT apparatus side.
１０，２０ 医療用寝台装置 １１ センサー（検出手段） １３ 距離照合部（距離照合手段） １５ 上下動制御部（制御手段） １７ 上下駆動部 ２１ ダミーウェイト（錘） ２３ 患者体重測定部（患者体重測定手段） ２５ 天板位置測定部（寝台位置測定手段） ２７ 重量照合部（重量照合手段） ２９ ダミーウェイト制御部（錘制御手段） ３１ ダミーウェイト駆動部 １００ 寝台 １０１ 天板 １０３ 天板部 １０５ 支持部 １１０ 放射線治療装置 １３０ Ｘ線ＣＴ装置 10, 20 Medical sleeper 11 sensors (detection means) 13 Distance verification unit (distance verification means) 15 Vertical movement control unit (control means) 17 Vertical drive 21 Dummy weight 23 Patient Weight Measuring Unit (Patient Weight Measuring Means) 25 Top position measuring unit (bed position measuring means) 27 Weight verification unit (weight verification means) 29 Dummy weight control section (weight control means) 31 Dummy weight drive unit 100 sleeper 101 top plate 103 Top plate 105 Support 110 Radiotherapy device 130 X-ray CT system
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭58−4535（ＪＰ，Ａ) 特開 平２−68042（ＪＰ，Ａ) 実開 昭53−13082（ＪＰ，Ｕ) 実開 平２−74009（ＪＰ，Ｕ) 実開 昭60−61008（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) A61B 6/03 A61B 6/04 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP 58-4535 (JP, A) JP 2-68042 (JP, A) Actual opening 53-13082 (JP, U) Actual opening 2- 74009 (JP, U) Actual development Sho 60-61008 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) A61B 6/03 A61B 6/04
Claims (2)
定部と、 予め設定された基準位置からの前記天板の引き出し量を
測定する天板位置測定部と、 前記患者体重測定部による測定結果及び前記天板位置測
定部による測定結果と、 予め設定された基準体重及び前記基準位置との差を算出
する重量照合部と、 前記医療用寝台装置に移動可能に設けられた錘と、 前記重量照合部による算出結果に基づいて該医療用寝台
装置の重心位置が前記天板部の回転移動における回転軸
近傍になるように前記錘の位置を制御する錘制御部とを
備えることを特徴とする医療用寝台装置。1.A tabletop on which the patient is placed, A top plate portion that movably supports the top plate, A support portion for rotatably supporting the top plate portion, Patient weight measurement for measuring the weight of the patient placed on the tabletop
Constant part, Set the amount of the top plate pulled out from the preset reference position.
A top position measuring unit to measure, The measurement result by the patient weight measuring unit and the top plate position measurement
The measurement result by the fixed part, Calculate the difference between the preset reference weight and the reference position
And a weight matching unit A weight provided movably on the medical bed apparatus, The medical bed based on the calculation result by the weight matching unit
The center of gravity of the device is the rotation axis in the rotational movement of the top plate.
With a weight control unit that controls the position of the weight so that it is close to
A medical couch device, comprising:
特徴とする請求項１記載の医療用寝台装置。 2. The cross-sectional shape of the supporting portion is circular.
The medical bed apparatus according to claim 1, wherein the bed is for medical use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22047094A JP3485974B2 (en) | 1994-09-14 | 1994-09-14 | Medical bed apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22047094A JP3485974B2 (en) | 1994-09-14 | 1994-09-14 | Medical bed apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0880297A JPH0880297A (en) | 1996-03-26 |
| JP3485974B2 true JP3485974B2 (en) | 2004-01-13 |
Family
ID=16751617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22047094A Expired - Fee Related JP3485974B2 (en) | 1994-09-14 | 1994-09-14 | Medical bed apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3485974B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3398516A4 (en) * | 2016-02-03 | 2019-05-29 | Samsung Electronics Co., Ltd. | Medical table and medical imaging apparatus including same |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7344306B2 (en) * | 2005-06-30 | 2008-03-18 | General Electric Company | Systems and methods for compensating for table sag |
| CN100444799C (en) * | 2005-08-18 | 2008-12-24 | Ge医疗系统环球技术有限公司 | Position measuring method of examination bed, pendant compensating method and X-ray CT appts |
| US7682079B2 (en) * | 2008-04-02 | 2010-03-23 | General Electric Company | Medical imaging system and method with integrated weight sensing |
| CN103860182B (en) * | 2012-12-17 | 2016-03-30 | 上海西门子医疗器械有限公司 | A kind of position difference defining method of examinating couch, system and armarium |
| CN113456101A (en) * | 2021-07-01 | 2021-10-01 | 深圳市深图医学影像设备有限公司 | Animal detection CT machine convenient to use |
-
1994
- 1994-09-14 JP JP22047094A patent/JP3485974B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3398516A4 (en) * | 2016-02-03 | 2019-05-29 | Samsung Electronics Co., Ltd. | Medical table and medical imaging apparatus including same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0880297A (en) | 1996-03-26 |
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