JP4304021B2 - Medical device bed positioning system - Google Patents

Description

  The present invention relates to a bed positioning system commonly used for a plurality of medical devices.

  Currently, one disease is often dealt with through image diagnosis and treatment using a plurality of medical devices. One example in which such a plurality of medical devices (medical modalities) are closely related is radiation therapy.

  In order to perform radiotherapy, a radiotherapy plan is made based on an image collected by an X-ray positioning device called an X-ray simulator or a CT positioning device called a CT simulator, and radiation is then applied to the planned site by the radiotherapy device. It comes to irradiate. Since the movement axes (coordinate systems) of these X-ray simulator, CT simulator, and radiotherapy apparatus are different from each other, marking is performed on the body surface of the subject, and this mark is used as a mark for each medical device. The subject is aligned on the bed. However, after making a treatment plan with an X-ray simulator or CT simulator, if the subject once descends from the couch and rises again on the couch of the radiotherapy device, the organ in the subject moves. As a result, positioning accuracy may be reduced.

  In view of this, in recent years, an integrated system in which a radiation therapy apparatus and a CT simulator are integrated, that is, a bed is shared, has begun to be used. However, even in this integrated system, since the coordinate system between the radiation therapy apparatus and the CT simulator is different, it is necessary to perform positioning separately for each apparatus.

As described above, there are many systems other than the above-described radiotherapy system that need to be individually positioned by individual devices while being in an integrated system that commonly uses one bed.

  For example, according to the X-ray inspection apparatus disclosed in Patent Document 1, the X-ray CT apparatus, the X-ray fluoroscopic apparatus, and the bed apparatus are installed so that at least two apparatuses can move on the floor surface. The subject placed on the X-ray can access both the X-ray CT apparatus and the X-ray fluoroscopic apparatus. Specifically, in this X-ray inspection apparatus, when imaging with the X-ray CT apparatus, the X-ray fluoroscopic imaging apparatus is temporarily retracted, and in this state, the bed apparatus is moved to the X-ray CT apparatus side to perform CT imaging. Do. In order to perform X-ray fluoroscopy from this CT imaging state, the bed apparatus is temporarily retracted, the X-ray fluoroscopic imaging state that has been retracted as described above is advanced, and the bed apparatus is advanced again. X-ray fluoroscopic imaging is performed.

Further, in Patent Document 2, a morphological diagnosis apparatus (for example, a magnetic resonance imaging apparatus) and a functional diagnosis apparatus (for example, a SPECT apparatus) are arranged close to each other to share a bed apparatus. A medical diagnostic system for controlling the amount of introduction to the above is disclosed. As an aspect of this close arrangement, examples of an opposing arrangement, a parallel arrangement, and an orthogonal arrangement are shown. In this medical diagnosis system, for example, in the case of facing arrangement, the top plate at the initial position is moved to the SPECT device side by a certain distance and imaged by the SPECT device, and then the top plate is pulled back by such a certain distance. And then rotated 180 °. Next, this top plate is moved by a certain distance to the magnetic resonance imaging apparatus side to perform magnetic resonance imaging. In the case of parallel arrangement or orthogonal arrangement, the bed itself is moved laterally or rotated 90 ° using the rail, and then moved again toward the diagnosis possible area of the SPECT apparatus or magnetic resonance imaging apparatus. I am doing so.
Microfilm of Japanese Utility Model No. 1-84170 (Japanese Utility Model Application No. 3-24110) JP-A-4-105641

  However, since the coordinate systems of the plurality of medical devices are different from each other in the integrated system described in Patent Documents 1 and 2 described above, when the bed or the top plate is moved toward each device, Since a plurality of forward and backward movement operations are required (Patent Document 1), and in addition to the forward and backward movement operations, a rotational movement operation is required (Patent Document 2), the entire movement operation is complicated. Accordingly, the calculation load accompanying the movement control increases accordingly.

  In the case of the integrated system described in Patent Document 2, a bed (subject) can be moved to the diagnostic space of each medical device, as in the radiation treatment system described above. It is necessary to perform positioning using the attached markings.

  Furthermore, in the case of the integrated system described in Patent Document 1, when the bed apparatus is moved toward the X-ray CT apparatus, the X-ray fluoroscopic apparatus is always accompanied by retraction and advancement operations. However, the system becomes large for the scale of the system. Further, although the isocenter height position (that is, the plane including the height (one-dimensional) position) is matched between the X-ray CT apparatus and the X-ray fluoroscopic apparatus, the X-ray fluoroscopic apparatus itself. Positioning or fine-tuning in each of the X-ray CT apparatus and the X-ray fluoroscopic apparatus is indispensable as an actual problem because there may be a positional shift between isocenters due to retraction and advancement of the X-ray. It has become.

  The present invention has been made in order to overcome the current state of the prior art. By simply moving a bed commonly used for a plurality of medical devices by a simple operation as much as possible, each of the plurality of medical devices can be isolated. It is possible to easily and accurately three-dimensionally position a subject at the center, thereby shortening the time required for the positioning operation and reducing the operational effort of the operator, thereby improving the efficiency of diagnosis and treatment. It is an object of the present invention to provide a positioning system for a medical device bed.

In order to achieve the above-described object, a medical apparatus bed positioning system according to the present invention includes, as a basic configuration thereof, a top plate on which a subject is placed, which is commonly used for three or more medical apparatuses. The two- dimensional directions of the orthogonal three-dimensional directions based on the position of the isocenter of the bed and each of the three or more medical devices are parallel, and the remaining one of the orthogonal three-dimensional directions. in a state in which the dimension direction Ru said three or more medical devices are juxtaposed so as to be collinear, movably the minor axis direction of the top plate of the bed in the one-dimensional direction as the rest of the one-dimensional direction a bed supporting means for supporting, not let degenerate stretching the top plate of the bed which is supported I by the bed supporting means, the said object by controlling only the movement of the remaining one-dimensional direction of the bed 3 or more medical devices Positioning control means for individually positioning at each of the isocenters is provided.

  Specifically, the position of the isocenter of each of the plurality of medical devices is a focus position of a treatment beam of each of the plurality of medical devices or a geometric rotation center position set in the medical device.

  Preferably, the plurality of medical devices includes three units, that is, the radiotherapy device, the X-ray positioning device, and the X-ray CT positioning device. For example, the plurality of medical devices are juxtaposed in the remaining one-dimensional direction, and the one-dimensional direction is a linear direction or a rotation direction.

  For this reason, the bed on which the subject is placed is linearly moved or rotated from the initial position by a predetermined distance toward, for example, the X-ray positioning device or the X-ray CT positioning device, and then the X-ray positioning device or the X-ray CT. The treatment site of the subject is positioned at a predetermined position with respect to the positioning device. In this positioning state, a fluoroscopic image or a tomographic image of the treatment site of the subject is collected, and a treatment plan is made based on this image. As a result of this treatment plan, the irradiation conditions including the radiation treatment field and isocenter are determined. Therefore, the position of the subject on the bed is adjusted so that the determined isocenter is positioned in alignment with the isocenter of the X-ray positioning apparatus or X-ray CT positioning apparatus.

  In this state, while maintaining the orientation of the bed, the position of the isocenter determined in the treatment plan is determined by the translation plan by linearly moving or rotating in the direction of the radiation therapy device by a predetermined distance. It automatically matches the position of the isocenter three-dimensionally. For this reason, it is not necessary to perform positioning by the radiation therapy apparatus, and the treatment by radiation irradiation can be performed as it is.

  On the other hand, when performing radiotherapy with this radiotherapy apparatus, it is necessary to observe the state of the treatment site. For example, while the orientation of the bed is maintained, it is translated by a predetermined distance toward the X-ray CT positioning apparatus, for example. Therefore, it is moved linearly or rotationally. As a result, the position of the isocenter set on the subject automatically coincides with the position of the isocenter of the X-ray CT positioning apparatus, so that the positioning operation in the X-ray CT positioning apparatus becomes unnecessary, and CT imaging is performed as it is. be able to.

  Therefore, the subject can be easily and accurately three-dimensionally positioned at the isocenter of each of the plurality of medical devices by simply moving the bed in a predetermined one-dimensional direction.

  As described above, according to the present invention, the isocenter of each of the plurality of medical devices can be obtained by simply moving the bed commonly used for the plurality of medical devices by a simple operation (for example, a linear operation or a rotation operation) as much as possible. The subject can be easily and accurately positioned three-dimensionally, thereby reducing the time required for the positioning operation and reducing the operational effort of the operator, thereby improving the efficiency of diagnosis and treatment. It is possible to provide a bed positioning system for a medical device that can be used.

  Embodiments according to the present invention will be described below.

  One embodiment according to the present invention will be described with reference to FIGS.

In this embodiment, the bed positioning system for a medical device according to the present invention is functionally integrated in an integrated image diagnosis & radiation therapy system. For this reason, the image diagnosis and radiation treatment integrated system will be described below in the form of incorporating the medical device bed positioning system. In the description of this embodiment, an orthogonal coordinate system composed of an x-axis, a y-axis, and a z-axis orthogonal to each other is set as shown in FIG. 1, and directions defined by this coordinate system will be described later. It shall extend to the floor F which has installed each apparatus.

  In FIG. 1, the outline | summary of the image diagnosis & radiotherapy integrated system 1 which concerns on this embodiment is shown. This integrated system 1 includes a medical image diagnostic apparatus (medical modality), which is a medical apparatus, in order from the left side of the figure, a CT positioning apparatus 11 called a CT simulator, a radiotherapy apparatus 12 that performs radiotherapy on a cancerous part of a subject, An X-ray positioning device 13 called an X-ray simulator is juxtaposed in the y-axis direction while facing the x-axis direction at a predetermined interval. The CT positioning device 11 and the X-ray positioning device 13 are used for imaging plans performed during radiotherapy and image diagnosis during radiotherapy.

  The CT positioning device 11 is a device having a function of obtaining a CT image of a subject, and includes a self-propelled gantry 11A. The CT positioning device 11 includes the gantry 11A and a bed 14 on which the subject is placed. The bed 14 employs the medical device bed positioning system according to the present invention, and therefore is commonly used for other medical devices, that is, the radiotherapy device 12 and the X-ray positioning device 13. For this reason, the bed 14 will be specifically referred to as a common bed.

The gantry 11A is self-propelled, and when the common couch 14 is moved and positioned to a predetermined position facing the gantry 11A, the gantry 11A can move in a direction toward or away from the common couch 14. ing. As a result, a bed (that is, a subject on the top plate) is inserted into a bore formed in the gantry 11A so as to freely move back and forth, and an X-ray scan can be performed on the subject. In order to perform this scan, a pair of an X-ray tube and an X-ray detector provided in the gantry 11A is configured to rotate around a geometric rotation center. This center of rotation thus forms the isocenter IC _A (x1, y1, z1).

The radiotherapy apparatus 12 includes a gantry unit 12A equipped with a radiation source, and has a function of irradiating a subject with, for example, X-rays as radiation from the gantry unit 12A under planned irradiation conditions. The radiotherapy apparatus 12 also includes the gantry unit 12A and the common couch 14 described above to form one apparatus. Specifically, the gantry unit 12A includes a gantry main body that is rotatable around an axis in the body axis direction of the subject, and a support unit that rotatably supports the gantry main body. The position where the radiation irradiated in each direction from the radiation source installed in the gantry main body gathers forms the isocenter IC _B (x2, y2, z2).

Further, the X-ray positioning device 13 is a device having a function of having a fluoroscopic image of a subject, and includes a support portion 13A in which an X-ray source and an X-ray detector are arranged to face each other, and the support portion 13A and the subject. The above-mentioned common couch (to be described later) on which is placed is configured as one apparatus. In the case of the X-ray positioning device 13, an isocenter IC _C (x3, y3, z3) is provided at the position of the center of rotation of the gantry (main body).

  Other components such as a dedicated high voltage generator and a console are also installed for each of the CT positioning device 11, the radiotherapy device 12, and the X-ray positioning device 13, but these are not shown. Absent.

The respective isocenters IC _A (x1, y1, z1), IC _B (x2, y2, z2), and IC _C (x3, y3) of the CT positioning device 11, the radiotherapy device 12, and the X-ray positioning device 13 described above. , Z3) is represented as shown in FIG. 2 in the Cartesian coordinate system of the three-dimensional space, and the apparatus configuration satisfies the relationship of coordinate values x1 = x2 = x3 and z1 = z2 = z3. That is, for a position in a uniquely determined three-dimensional space, the position coordinates are the same in the two-dimensional direction (here, the x-axis direction and the z-axis direction), and the remaining one-dimensional direction (here, the y-axis direction). The position coordinates are set to differ only for. Now, since the z-axis direction is assigned to the height direction of each of the devices 11 to 13, the isocenters IC _A , IC _B , and IC _C have the level in the height direction (z-axis direction) and the bed longitudinal direction (x The level in the axial direction is set in advance so as to match each other.

  As described above, the CT positioning device 11, the radiation therapy device 12, and the X-ray positioning device 13 according to the present embodiment have a minimum condition (remaining one dimension (here, y It is only necessary to ensure that the position coordinates are different only in the axial direction), and the remaining conditions (the x-axis direction position and the z-axis direction position) have a common device configuration as much as possible.

  On the other hand, the common couch 14 described above includes a couchtop 14A on which the subject P is placed, a couch body 14B configured to support the couchtop 14 so as to be slidable in the longitudinal direction and to be adjustable in height, and the couch body. An on-floor base 14C and an under-floor base 14D that support 14B are provided. The base 14C on the floor can move the bed main body 14B on the floor in the remaining one-dimensional direction, that is, the y-axis direction. The underfloor base 14D is installed in a moving space SP drilled under the floor and is rigidly coupled to the above-floor base 14C to support the above-mentioned base 14C.

  A plurality of (for example, two) rails 15 and 16 are laid along the y-axis direction at the bottom of the moving space SP, and the underfloor base 14D slidably mounted on the rails 15 and 16 is It is movable in the rail direction. A drive unit (electric motor, gear mechanism, etc.) 17 serving as a drive source for movement in the y-axis direction is further connected to the underfloor base 14D. The drive unit 17 is electrically connected to the controller 19 via a driver 18. For this reason, when the controller 19 sends a control signal related to the reciprocation in the y-axis direction to the driver 18, the driver 18 sends a drive signal in response to the control signal to the drive unit 17. Thereby, the drive part 17 moves the underfloor base 14D, ie, the common bed 14 whole, in the commanded direction in the y-axis direction.

  During this movement, the movement direction and movement distance of the underfloor base 14 </ b> D are monitored by a plurality of position sensors 20, and this sensor signal is captured by the controller 19. The controller 19 reads the command signal regarding the movement given by the operator and the sensor signal from the position sensor 20 using the input device 21 and the display 22, and the movement direction in the y-axis direction of the common couch 14 according to these signals and The moving distance can be accurately performed.

  In addition, the common bed 4 has three degrees of freedom of rotation: an isocenter shaft rotation R1, a top plate rotation R2, and a column shaft rotation R3. For this reason, by making the top plate rotation R2 at a specified angle, the top plate 14A may take an oblique posture with a specified angle with respect to the longitudinal axis of the bed 14, that is, the x-axis direction in this embodiment. Yes (see phantom line A in FIG. 1).

  Next, the effect of the image diagnosis & radiation therapy integrated system 1 according to the present embodiment will be described with reference to FIGS.

  In the case of radiotherapy, when an operator commands this from the input device 21, the controller 19 commands the drive of the drive unit 17 via the driver 18. As a result, the common couch 14 at an arbitrary position moves on the rails 15 and 16 and moves to the predetermined initial position (step S1 in FIG. 4). This initial position is an arbitrary designated position in the y-axis direction, for example, the end position of the movement path in the y-axis direction formed by the rails 15 and 16 where the subject P can easily access the top 14A. The subject P lies on the top 14 </ b> A of the common bed 14 in a state where the common bed 14 is located at the initial position.

  When the operator commands movement from the input device 21 to, for example, the X-ray positioning device 13 (step S2), the controller 19 drives the drive unit 17 in response to this command, so the common bed 14 moves in the y-axis direction. Then, it moves to a position facing the X-ray positioning device 13 (steps S3 to S4: refer to the position of the virtual line B3 in FIG. 1).

A fluoroscopic image of the treatment site of the subject P is collected in this positioned state, and a treatment plan is made based on this image. As a result of this treatment plan, the irradiation conditions including the radiation treatment field and isocenter are determined. Therefore, the position of the subject P on the top plate 14A is adjusted so that the determined position of the isocenter is positioned in alignment with the isocenter IC _C of the X-ray positioning device 13.

When treatment preparation is completed in this way, the operator commands the movement of the common bed 14 to the radiation therapy apparatus 14 via the input device 21 (step S2). When this command is issued, the controller 19 drives the drive unit 17 based on the command signal and the output signal of the position sensor 18, and the entire common couch 14 is irradiated along the rails 15 and 16 (that is, in the y-axis direction). Move linearly (translate) to the treatment device 12 (steps S3 to S4: see arrow C in FIG. 1). As a result, the position of the isocenter set for the radiation treatment on the subject P is automatically moved from the position of the isocenter IC _C of the X-ray positioning apparatus 13 to the position of the isocenter IC _B of the radiotherapy apparatus 12. Stop (see the position B2 of the bed in FIG. 1).

When this stop is completed, the position of the isocenter of the subject P is already in the state of matching with the position of the isocenter IC _B of the radiotherapy apparatus 12, so that there is no need to perform positioning with the radiotherapy apparatus 12, as it is. The radiotherapy by the radiotherapy apparatus 12 is performed according to the treatment plan.

When it is desired to observe the CT image of the subject P due to the necessity of observing the state of the treatment site when performing radiotherapy with the radiotherapy apparatus 12 or during the radiotherapy, the operator performs CT via the input device 21. Command to move to the positioning device 11 (step S2). In response to this command, the controller 19 linearly moves (translates) the common couch 14 in the y-axis direction along the rails 15 and 16 to the CT positioning device 11 (steps S3 to S4: see arrow C in FIG. 1). . Thereby, the position of the isocenter of the subject P moves from the position of the isocenter IC _B of the radiotherapy apparatus 12 to the position of the isocenter IC _A of the CT positioning apparatus 11 and automatically stops (the bed of FIG. 1). (See virtual line position B1). At this time, the gantry 11A of the CT positioning device 11 is in the retracted position, and advances to the designated scan position immediately after arrival of the common bed 14. When the common bed 14 reaches the position facing the CT positioning device 11, the position of the isocenter of the subject P is already in the state of matching the position of the isocenter IC _A of the CT positioning device 11. There is no need to perform positioning in step 11, and it is possible to shift to CT imaging by X-ray scanning.

  When this CT imaging is completed, the gantry 11A is retracted, a movement in the y-axis direction opposite to that described above is commanded, and the common couch 14 is moved (translationally moved) to the radiation therapy apparatus 12 or the couch initial position (translational movement). (See arrow C in FIG. 1). This movement control is continued until one radiation treatment is completed (step S5).

  As described above, according to the integrated system 1 of the present embodiment, the two-dimensional positioning is already performed by a simple movement operation that moves the common bed 14 in one preset direction (here, the y-axis direction). Since the remaining one-dimensional alignment of the three-dimensional position coordinates can be performed, the CT positioning device 11, the radiation therapy device 12, and the X-ray positioning device 13 are located at the respective isocenter positions. The subject P can be easily and accurately three-dimensionally positioned. When the CT positioning device 11 is used, the gantry 11A is retracted and advanced, and this is a local movement within the system of the CT positioning device 11, and is a movement within the entire system of the integrated system 1. Is not involved in movement control of the entire system. The movement control of the whole system only needs to translate the common bed 14 along the rails 15 and 16 in the y-axis direction.

  As a result, the common bed 14 can be moved as much as possible by a simple movement operation, and the subject P can be easily and accurately positioned at the isocenter of each of the plurality of medical devices 11 to 13. As a result, the time required for the positioning operation can be shortened, and the operator's operational effort can be reduced to improve the efficiency of diagnosis and treatment. In addition, patient throughput is improved.

  In the above-described radiotherapy, the case where the first treatment plan is performed by the X-ray positioning device 13 has been described. However, this treatment plan may be performed by the CT positioning device 11, or both of them may be used in combination. You may make it stand.

  Further, in view of the fact that such a treatment plan is performed using only one of the X-ray positioning device 13 and the CT positioning device 11 than using both of them, the present embodiment. Then, the radiotherapy apparatus 12 is disposed at an intermediate position between the X-ray positioning apparatus 13 and the CT positioning apparatus 11. Thereby, the moving distance of the common bed 14 when shifting from the treatment plan to the radiation treatment is reduced, and it is possible to contribute to the improvement of the patient throughput by shortening the treatment time.

(Other embodiments)
With reference to FIGS. 5 and 6, another embodiment of the integrated image diagnosis and radiation therapy system embodying the present invention will be described. Embodiment described here shows the structure which changed the moving direction of the common bed to the thing of another aspect.

  In the embodiment described above, the common couch 14 is translated along the y-axis direction, that is, without changing its posture, so that the positioning operation with respect to the plurality of medical devices 11 to 13 is easily performed. However, the direction of the positioning operation according to the present invention is not limited to this. For example, as shown in the image diagnosis and radiation therapy integrated systems 2 and 3 in FIGS. 5 and 6, the rotation operation may be performed with the direction of the positioning operation as the circumferential direction of the circle.

In order to realize this, instead of the rail described above, a turntable 23 is rotatably installed on the floor surface F, and the turntable 23 is rotated around a central position O by a drive unit (not shown). Configure. The CT positioning device 11, the radiation therapy device 12, and the X-ray positioning device 13 are arranged at equal intervals of 120 ° around the turntable 23 (see FIG. 5) or 90 ° on the semicircular portion of the turntable 23. They are arranged at intervals (see FIG. 6). The isocenters IC _A , IC _B , and IC _C of the CT positioning device 11, the radiation therapy device 12, and the X-ray positioning device 13 are r components when expressed in cylindrical coordinates (r, θ, z), respectively. And the z component are set to the same value, and the θ component is set to be variable.

  Therefore, by controlling the θ component, that is, controlling the rotation angle of the turntable 23 (see arrow C), it is possible to cause the common couch 14 to perform the positioning operation equivalent to the linear movement described above. It is possible to obtain an operational effect equivalent to the form. In addition, since the turntable 23 is employed in particular, it can cope with various installation space shapes.

  The description of the embodiment is as described above, but the present invention is not limited to the configuration described in the embodiment, and those skilled in the art can appropriately change the configuration without departing from the gist described in the claims. These can be modified, and their configurations are also included in the present invention. For example, the number of medical devices is not limited to three, and may be two or four or more. The plurality of medical devices are not necessarily limited to those intended for radiotherapy, and may be those that perform IVR-CT using a combination of a fluoroscopic imaging device and an X-ray CT device, or a magnetic resonance imaging device. For example, it may be a composite diagnostic imaging in which a morphological diagnostic apparatus such as a single photon emission CT apparatus (SPECT apparatus) is combined. The coordinate system that can be adopted by the system according to the present invention may be either an orthogonal coordinate system or a rotational coordinate system.

1 is a plan layout diagram showing a schematic configuration of an integrated diagnostic imaging and radiation therapy system that functionally incorporates a medical device bed positioning system according to an embodiment of the present invention. The figure explaining the spatial positional relationship of the isocenter of the three medical devices in embodiment. The figure explaining the schematic structure of the common bed used by embodiment with the control mechanism. The flowchart explaining the concept of the movement control of the common bed performed in embodiment. The plane arrangement | positioning figure which shows schematic structure of the image diagnosis & radiotherapy integrated system which functionally integrated the medical device bed positioning system which concerns on another embodiment of this invention. The plane arrangement | positioning figure which shows schematic structure of the image diagnosis & radiotherapy integrated system which functionally integrated the positioning system of the medical device bed which concerns on another embodiment of this invention.

Explanation of symbols

1, 2, 3 Image diagnosis & radiation treatment integrated system 11 functionally incorporating a medical device bed positioning system 11 CT positioning device 12 as medical device Radiation therapy device 13 as medical device X-ray positioning device as medical device 14 Common bed 14A Top plate 14B Bed body 14C Floor base 14D Floor base 15, 16 Rail 17 Drive unit 18 Driver 19 Controller 20 Position sensor 21 Input device 22 Display device 23 Turntable F Floor IC _A , IC _B , IC _C Isocenter

Claims (8)

A bed provided with a top plate on which a subject is placed, commonly used for three or more medical devices;
The two- dimensional directions of the three-dimensional orthogonal directions starting from the isocenter position of each of the three or more medical devices are parallel, and the remaining one-dimensional directions of the three-dimensional orthogonal directions are in a state in which the to be a collinear three or more medical devices Ru are juxtaposed, a bed for movably supporting the minor axis direction of the top plate of the bed in the one-dimensional direction as the rest of the one-dimensional direction Support means;
Wherein not let degenerate stretching the top plate of the bed which is supported I by the bed supporting means, the remaining one-dimensional direction, respectively move only the control to the three or more medical device the subject of the bed A positioning system for a medical device bed, comprising positioning control means for individually positioning at the isocenter. The medical device couch positioning system according to claim 1,
Position of the isocenter of each of the three or more medical devices, and characterized by a set geometric center of rotation located at the focal point position or the medical device of each of the three or more medical devices treatment beam Positioning system for medical device. The medical device couch positioning system according to claim 2,
The three or more medical devices include a radiotherapy device that performs radiotherapy on the subject, an X-ray positioning device that is used for the radiotherapy treatment plan, and an X that is capable of self-propelled in the longitudinal direction of the top plate. positioning system of the medical device couch, characterized by comprising at the line CT positioning equipment. The medical device couch positioning system according to claim 3 ,
The radiation treatment device, the positioning system of the medical device couch, characterized in that is positioned between the front Symbol X-ray positioning device the X-ray CT positioner. The medical device couch positioning system according to claim 3 ,
The X-ray CT positioning apparatus includes a self-propelled gantry, and a medical apparatus bed positioning system. The medical device couch positioning system according to claim 3 ,
The medical bed positioning system according to claim 1, wherein the bed is configured such that a top plate on which the subject is placed can be inclined with respect to a longitudinal direction of the top plate. In the positioning system of the medical apparatus bed as described in any one of Claims 3-6 ,
The bed support means includes a rail means for supporting the bed so as to be able to reciprocate in the linear direction, and a reciprocating drive means for driving the rail means to reciprocate the bed. A system for positioning a couch for a device. The medical device couch positioning system according to claim 7 ,
The medical device bed positioning system, wherein the rail means and the driving means are installed in an under floor portion of a floor on which the bed is moved.

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