JP6257927B2 - Diagnostic equipment - Google Patents

Description

  The present invention relates to a medical couch device having a column portion arranged at an installation location and a top plate on which a subject is placed, and a diagnostic apparatus using the medical couch device.

  The diagnostic device is configured to correspond to a diseased site (for example, heart, abdomen to foot) diagnosed thereby.

  Generally, a large-scale medical institution is equipped with a dedicated diagnostic device according to a diseased part. On the other hand, a small and medium-sized medical institution requires a multipurpose diagnostic apparatus that can image the whole body from the head to the toe of a subject with one apparatus.

  Here, a diagnostic apparatus having a medical bed apparatus and an X-ray imaging unit holding apparatus will be described as an example. The medical couch device includes a support column disposed at an installation location and a long top plate on which a subject is placed. The top plate is configured to be movable in the longitudinal direction with respect to the support column. The longitudinal direction may be referred to as the body axis direction of the subject.

The X-ray imaging unit holding device has a C-arm. An X-ray source is provided at one end of the C-arm. An X-ray detector is provided at the other end of the C arm. When the subject is imaged by such an X-ray imaging unit holding device, the subject on the top is relatively moved in the gap between the X-ray source and the X-ray detector.
The C arm is configured to be movable along the longitudinal direction of the top plate and to be movable along the shape of the C arm (for example, Patent Document 1).

  In some X-ray imaging unit holding devices, an intermediate part between one end and the other end of the C-arm is configured to be rotatable about a substantially horizontal axis. When the C-arm is rotated about the substantially horizontal axis, the X-ray source and the X-ray detector move so as to draw an arc (centered on the approximately horizontal axis) on the vertical plane including the longitudinal direction of the top plate. Is done. Thereby, it is possible to photograph a wide range along the body axis direction.

  When such an X-ray imaging unit holding apparatus is used for a multipurpose diagnostic apparatus, the C-arm is moved greatly in order to image the whole body of the subject (a large rotation around a substantially horizontal axis, and the C-arm is Including large movement along the length of the top plate).

JP 2009-66132 A

  FIG. 1 is an explanatory view of a diagnostic apparatus having a C-arm, and FIG. 2 is an explanatory view of a medical bed apparatus having a top plate movable in the longitudinal direction.

  However, in the conventional medical bed apparatus and the diagnostic apparatus using the same, as shown in FIG. 1, when the C-arm is largely rotated around a substantially horizontal axis, or the C-arm is along the longitudinal direction of the top plate. The C-arm and the X-ray source interfere with the column. FIG. 1 shows a C-arm that is greatly rotated and interferes with the support column in order to image the toe of the subject. For this reason, there has been a problem that the whole body of the subject cannot be imaged with one apparatus.

  As shown in FIG. 2, in order to prevent the C-arm and X-ray source from interfering with the support column, it is possible to lengthen the movement amount (stroke) of the top plate in the longitudinal direction. As the distance increases, the top of the top plate bends more greatly due to the weight of the subject, so that there are problems that the accuracy of imaging is lowered and it is difficult to ensure mechanical safety.

  Therefore, the present embodiment has been made in view of the above problems, and prevents a reduction in imaging accuracy and a reduction in mechanical safety, and enables imaging of the entire body of a subject with one apparatus. An object is to provide a medical bed apparatus and a diagnostic apparatus using the same.

To achieve the above object, the cross-sectional device diagnosis of this embodiment, C-arm has an X-ray source and X-ray detector, and X-ray imaging unit holding apparatus for imaging a subject, are fixed to the installation site And a medical couch device having a long couch on which a subject is placed, and the C arm includes an end portion on which an X-ray source is disposed and an X-ray detector. The other end portion disposed, and a region between the one end portion and the other end portion, and any one of the entire region from the one end to the other end in the longitudinal direction of the top plate on the top plate The C-arm moves relative to the top so as to be an imaging region for imaging the subject, and the medical couch device has a substantially rectangular plate shape between the support column and the top plate. The intermediate support can be moved in the longitudinal direction with respect to the column so that the intermediate support and the front end side of the intermediate support can be put in the photographing region. A top that rotates the top plate around the vertical axis for the top plate provided on the front end side of the intermediate support so that the direction of relative movement of the support body slide mechanism and the C-arm relative to the longitudinal direction of the top plate matches. A plate rotation mechanism.
Furthermore, the diagnostic apparatus according to the present embodiment includes a C-arm, an X-ray source, and an X-ray detector, and includes an X-ray imaging unit holding device that images a subject, a support column fixed to an installation location, and a subject. In the diagnostic apparatus having a medical couch device having a long top plate placed thereon, the C arm includes one end portion where the X-ray source is disposed and the other end portion where the X-ray detector is disposed. The medical couch device has a substantially rectangular plate shape between one end and the other end, and the strut portion has a substantially rectangular plate shape. An intermediate support disposed between the top plate and the top plate, an intermediate support rotation mechanism capable of rotating the intermediate support around the vertical axis for the intermediate support with respect to the support column, and the top plate with respect to the intermediate support. A top plate rotating mechanism that can rotate about a vertical axis for the plate, and the intermediate support rotating mechanism and the top plate rotating mechanism are arranged in the longitudinal direction of the top plate. As to the position of any portion from the end portion to the other end in the imaging area, to rotate the intermediate support to an intermediate support-body vertical axis, to rotate the top plate about the vertical axis for the top plate.

Explanatory drawing of the diagnostic apparatus which concerns on a comparative example. Explanatory drawing of the diagnostic apparatus which concerns on a comparative example. The block diagram of the medical bed apparatus which concerns on 1st Embodiment. The cross-sectional view which shows a part of medical bed apparatus by a cross section. The top view of a medical bed apparatus. The top view of a medical couch apparatus when moving an intermediate | middle board to a longitudinal direction. The top view of a medical couch apparatus when rotating a top plate around the vertical axis | shaft for top plates. The top view of a medical bed apparatus when making the elongate direction of a top plate correspond with the moving direction of C arm. The side view of a medical couch apparatus when making the elongate direction of a top plate correspond with the moving direction of C arm. The block diagram of the medical bed apparatus which concerns on a modification. The cross-sectional view which shows a part of medical bed apparatus which concerns on the modification of 1st Embodiment by a cross section. The block diagram of the medical bed apparatus which concerns on 2nd Embodiment. The cross-sectional view which shows a part of medical bed apparatus by a cross section. The top view of a medical bed apparatus when the intermediate part of the elongate direction of a top plate is located in an imaging | photography area | region. The top view of a medical bed apparatus when the front-end | tip part of the elongate direction of a top plate is located in an imaging | photography area | region. The top view of a medical bed apparatus when the base end part of the elongate direction of a top plate is located in an imaging | photography area | region. The top view of the medical bed apparatus which can respond to the X-ray imaging part holding | maintenance apparatus arrange | positioned at two places. The block diagram of the medical bed apparatus which concerns on a modification. The front view of the medical bed apparatus which concerns on the modification of 2nd Embodiment. The side view of the medical bed apparatus which concerns on the modification of 2nd Embodiment. The block diagram of the medical bed apparatus which concerns on 3rd Embodiment. The cross-sectional view which shows a part of medical bed apparatus by a cross section. The side view of a medical bed apparatus. The figure which shows the structure of the medical couch apparatus which concerns on various embodiment by a list.

Diagnostic devices according to various embodiments will be described with reference to the drawings.
Here, a diagnostic apparatus having an X-ray imaging unit holding apparatus and a medical bed apparatus will be described as an example.

As described above, the X-ray imaging unit holding device includes a C-arm, an X-ray source, and an X-ray detector.
Some C-arms are installed on the floor by an X-ray imaging unit holding device (floor-standing type). In addition, there is one that is suspended from the ceiling and can travel (ceiling traveling type). Furthermore, there is a composite type combining a floor-standing type and a ceiling traveling type.

  In order to provide a medical couch device capable of imaging the whole body of a subject with a single device, the medical couch device needs to be configured according to the type of the X-ray imaging unit holding device. is there.

Regardless of the type of C-arm, the C-arm is configured as follows.
1) It is configured to be movable along the shape of the C-arm.
2) An intermediate portion between one end and the other end of the C-arm is configured to be rotatable about a substantially horizontal axis. Thereby, the X-ray source and the X-ray detector are moved so as to draw an arc (substantially about the horizontal axis) on a vertical plane including the longitudinal direction of the top plate as described above. .
3) An intermediate portion between one end portion and the other end portion of the C arm is configured to be rotatable about a substantially vertical axis.

Needless to say, the medical couch device is configured to correspond to the configuration of the C-arm.
Furthermore, when the medical couch device is installed, in addition to the X-ray imaging unit holding device, other devices (medical facilities) are arranged around the medical couch device. The medical couch device needs to be configured according to the arrangement of other devices.

<First Embodiment>
1st Embodiment of the diagnostic apparatus 1 is described with reference to each figure.

  In the following description, the horizontal directions that are orthogonal to each other are indicated by the X direction and the Y direction, and the vertical direction is indicated by the Z direction. A horizontal axis (horizontal axis) may be referred to as an X axis or a Y axis. In addition, the vertical axis (vertical axis) may be referred to as the Z axis. Further, some diagnostic apparatuses 1 have a tilting mechanism that tilts the top plate on which the subject is placed with respect to the horizontal direction. However, for convenience of explanation, the horizontal direction includes some inclination. .

  The diagnostic device 1 includes an X-ray imaging unit holding device 2 and a medical couch device 10.

[Medical couch device 10]
Next, an example of the medical couch device 10 will be described with reference to FIGS.
FIG. 3 is a block diagram of the medical couch device according to the first embodiment, and FIG. 4 is a cross-sectional view showing a part of the medical couch device in cross section.

  As shown in FIG. 3, the medical couch device 10 includes a support column 11, an intermediate plate 12, a top plate 13, a holding unit 14, an intermediate plate slide mechanism 20, and a top plate rotation mechanism 50.

  The support column 11 is disposed at the installation location. The holding part 14 has a substantially rectangular plate shape and is fixed to the support part 11. The column part 11 and the holding part 14 are integrally formed. The whole support | pillar part 11 and the holding | maintenance part 14 may be called "a support | pillar part." A subject is placed on the top 13.

  As shown in FIG. 4, the intermediate plate 12 is disposed between the support column 11 (holding unit 14) and the top plate 13. The intermediate plate 12 has a substantially rectangular plate shape.

[Intermediate plate slide mechanism 20]
Next, an example of the intermediate plate slide mechanism 20 will be described. FIG. 5 is a plan view of the medical couch device 10, and FIG. 6 is a plan view of the medical couch device when the intermediate plate is moved in the longitudinal direction. 5 and 6, the longitudinal direction of the top plate 13 is indicated by “A1” and “A2”. FIG. 5 shows the intermediate plate 12 moved in the A1 direction. FIG. 6 shows the intermediate plate 12 moved in the A2 direction.

  The intermediate plate slide mechanism 20 includes a guide rail 21, a slider 22, a rack gear (not shown), a pinion (not shown), and a motor (not shown).

  The guide rail 21 is fixed to the column part 11. The slider 22 is fixed to the intermediate plate 12. The slider 22 is fitted by the guide rail 21 so as to be movable along the longitudinal direction. By moving the slider 22 in the longitudinal direction, the intermediate plate 12 can move in the longitudinal direction with respect to the support column 11.

  The rack gear is disposed along the guide rail 21 and is fixed to the column portion 11. The pinion is disposed so as to mesh with the rack gear and is fixed to the intermediate plate 12. The motor is fixed to the intermediate plate 12 and rotates the pinion. Electric power is supplied to the motor via a switch (not shown).

  When the switch is turned on, electric power is supplied to the motor, and the motor is rotated in the forward direction or the reverse direction. When the switch is turned off, power supply to the motor is stopped and the motor is stopped.

  When the motor rotates the pinion, for example, in the positive direction, the pinion rolls along the rack gear. Thereby, the intermediate plate 12 moves in the A2 direction. When the motor rotates the pinion, for example, in the reverse direction, the pinion rolls along the rack gear. Thereby, the intermediate plate 12 moves in the A1 direction. At this time, the top plate 13 moves integrally with the intermediate plate 12. The rotation amount of the motor is proportional to the movement amount S1 of the intermediate plate 12 (and the top plate 13) (see FIG. 3).

[Top plate rotation mechanism 50]
Next, an example of the top plate rotation mechanism 50 will be described. 7 is a plan view of the medical couch device 10 when the top plate 13 is rotated around the vertical axis 51 for the top plate, and FIG. 8 is a view when the longitudinal direction of the top plate 13 is made to coincide with the moving direction of the C-arm 3. FIG. 9 is a side view of the medical bed apparatus 10 when the longitudinal direction of the top board is made to coincide with the moving direction of the C-arm.

  In FIG. 7, as the direction around the vertical axis 51 for the top plate, the clockwise direction is indicated by “CW1”, and the counterclockwise direction is indicated by “CW2”. In FIG. 8, the moving direction of the C arm 3 is indicated by “Y1” and “Y2”. FIG. 8 shows a subject P in which the head is placed on the distal end side of the top plate 13 and the foot portion is placed on the proximal end side of the top plate 13.

  The top plate rotating mechanism 50 includes a top plate vertical shaft 51, a wheel gear (not shown), a worm (not shown), a motor (not shown), and positioning means (not shown).

(Vertical axis 51 for top plate)
The top plate vertical shaft 51 is disposed at a position away from the central axis of the support column 11 and is fixed to the intermediate plate 12. The top plate 13 is configured to be rotatable with respect to the intermediate plate 12 around the top plate vertical axis 51.

  The vertical axis 51 for the top plate is positioned at or near the support column 11 before the intermediate plate 12 is moved in the longitudinal direction, and is separated from the support column 11 when moved in the longitudinal direction together with the intermediate plate 12. When the top plate 13 is rotated about the top plate vertical axis 51, a space is formed below the top plate 13 into which the one end 3a (X-ray source 4 or X-ray detector 5) of the C arm 3 enters. Arranged so that.

  The wheel gear has a large number of teeth arranged in the circumferential direction around the center of the top plate vertical shaft 51 and is fixed to the intermediate plate 12. The worm is arranged to mesh with the wheel gear and is fixed to the top plate 13. The motor is fixed to the top plate 13 and rotates the worm. Electric power is supplied to the motor via a switch (not shown). When the switch is turned on, electric power is supplied to the motor, and the motor is rotated in the forward direction or the reverse direction. When the switch is turned off, power supply to the motor is stopped and the motor is stopped.

  When the motor rotates the worm in the positive direction, for example, the worm advances in the circumferential direction while meshing with the wheel gear. Thereby, the top plate 13 is rotated in the CW1 direction. When the motor rotates the worm in the reverse direction, for example, the worm advances in the circumferential direction while meshing with the wheel gear. Thereby, the top plate 13 is rotated in the CW2 direction (see FIG. 7). Further, when the motor rotates the worm in the reverse direction, for example, the top plate 13 is further rotated in the CW2 direction. Thereby, the moving directions Y1 and Y2 (see FIG. 8) of the C arm 3 and the longitudinal direction (A1, A2) of the top plate 13 come to coincide. The rotation amount of the motor is proportional to the rotation angle θ2 of the top plate 13 (see FIG. 3).

  The top plate 13 is moved S1 by the intermediate plate slide mechanism 20, and the top plate 13 is rotated by θ2 by the top plate rotation mechanism 50. The displacement amount (movement amount and rotation angle) of the top plate 13 at this time is indicated by “S1 + θ2” in FIG.

(Positioning means)
The positioning means is configured to position the top plate 13 at an arbitrary rotation angle. Since the top plate 13 can be positioned by the holding torque of the motor and the frictional force between the worm and the wheel gear, it is not necessary to provide a positioning means other than a motor or the like, but the top plate 13 is prevented from rotating. A brake may be provided.

  By positioning the top plate 13 at an arbitrary rotation angle by the positioning means, the moving direction of the C-arm 3 and the longitudinal direction of the top plate 13 intersect (see FIG. 7), or both directions It becomes possible to restrain the top plate 13 in the matched state (see FIG. 8). Details of these states will be described later (see operation of diagnostic device 1).

[X-ray imaging unit holding device 2]
Next, an example of the X-ray imaging unit holding device 2 will be described with reference to FIGS. 8 and 9. FIG. 9 is a side view of the medical bed apparatus when the longitudinal direction of the top board is made to coincide with the moving direction of the C-arm 3.

(Ceiling type)
The medical couch device 10 of the first embodiment is compatible with the ceiling traveling type X-ray imaging unit holding device 2.

The X-ray imaging unit holding device 2 includes a C arm 3, an X-ray source 4, and an X-ray detector 5.
The C-arm 3 is suspended from the ceiling, and is configured to be movable in directions orthogonal to each other along the ceiling (horizontal plane) by a slide rail (not shown) provided on the ceiling. The directions orthogonal to each other are indicated by “X1”, “X2”, “Y1”, and “Y2” in FIG. Furthermore, the C-arm 3 has a C-shape and is configured to be rotatable about an intermediate portion 3c between one end 3a and the other end 3b about the center (around the Z axis). The direction of rotation is indicated by “D1” and “D2” in FIG. Further, the C arm 3 is configured to be movable along a C shape. The moving directions are indicated by “E1” and “E2” in FIG.

  The X-ray source 4 is disposed at one end 3 a of the C arm 3. The X-ray detector 5 is disposed at the other end 3 b of the C arm 3. X-rays are irradiated from the X-ray source 4 toward the X-ray detector 5.

  An imaging region that is an area for imaging the subject P on the top 13 is formed between the X-ray source 4 and the X-ray detector 5. The X-ray detector 5 detects X-rays irradiated from the X-ray source 4 and transmitted through the subject.

  By using the intermediate plate slide mechanism 20 and the top plate rotation mechanism 50, the moving direction of the C-arm 3 and the long direction of the top plate 13 can be matched.

  Accordingly, the C arm 3 is configured to be movable in the longitudinal direction with respect to the top plate 13. Therefore, an arbitrary region from the distal end portion to the proximal end portion in the longitudinal direction of the top plate 13 becomes an imaging region, and the whole body of the subject P on the top plate 13 can be imaged. Needless to say, when the whole body of the subject P is imaged, the one end 3a of the C arm 3 does not interfere with the support column 11 or the like.

(Other configurations)
Although not illustrated, the diagnostic device 1 includes a storage unit, a control unit, and a display unit.
The storage unit stores the coordinate system of each component of the diagnostic apparatus 1 including the intermediate plate 12, the top plate 13, and the C arm 3, and the target position and rotation angle of each component.

  The control unit receives operation information from the operator and determines whether or not safety is ensured by the control based on the coordinate system of each configuration. When safety is ensured, the intermediate plate slide mechanism 20 and the top plate rotation mechanism 50 are controlled. When safety is not ensured, the intermediate plate slide mechanism 20 and the top plate rotation mechanism 50 are stopped, and this is displayed on the display unit.

  The display unit displays the position of each component (including the rotation angle) and its state. In addition, the display unit displays whether each component has moved to a target position. The operator can operate the intermediate plate slide mechanism 20 and the top plate rotation mechanism 50 while looking at the position and state of each component displayed on the display unit. Further, when the safety is not ensured, the fact is displayed on the display unit, so the safety is ensured twice.

  Note that the storage unit, the control unit, and the display unit are the same when controlling each configuration of the diagnostic apparatus 1 in each of the following embodiments.

[Operation of Diagnostic Apparatus 1 of First Embodiment]
Heretofore, an example of the diagnostic apparatus 1 has been described.
Next, a series of operations when the diagnostic apparatus 1 captures an image of the subject placed on the top board 13 will be described.

  In FIG. 5, the position facing the side edge of the top plate 13 around the top plate 13 is indicated by “P1”, and the position facing the base end portion of the top plate 13 is indicated by “P2”.

As shown in FIG. 5, when the intermediate plate 12 (top plate 13) is sandwiched between other devices M1 and M2, and / or one end of the C arm 3 moved to image the whole body of the subject. When the 3a (or the X-ray source 4) interferes with the other devices M1 and M2 (or the support column 11), the control unit receives the operation information of the operator and controls the intermediate plate slide mechanism 20 so that The plate 12 is moved to a target position in the A2 direction (see FIG. 6).
The overhead traveling type C-arm 3 is moved from the position P1 to the position P2 (see FIG. 5) by the slide rail described above.

  In this way, after the interference between the intermediate plate 12 and the like and the other devices M1, M2, etc. is eliminated, the control unit receives the operation information of the operator and controls the top plate rotation mechanism 50, whereby the C arm 3 The top plate 13 is rotated around the top plate vertical axis 51 so that the movement direction (in this case, Y1, Y2) and the longitudinal direction A1, A2 of the top plate 13 coincide with each other (so that the target rotation angle is obtained). Rotate to The top plate 13 rotated in the direction of CW2 is shown in FIG.

  At this time, a space in which one end 3a (X-ray source 4 or X-ray detector 5) of the C arm 3 enters is formed below the top plate 13. Thereby, even if the C arm 3 is largely moved in the Y1 and Y2 directions, the one end 3a (or the X-ray source 4) does not interfere with the other devices M1 and M2 (or the support column 11). This makes it easy to ensure safety.

  Further, the whole body of the subject P can be imaged by largely moving the C arm 3. At this time, it is not necessary to change the orientation of the subject P with respect to the top board 13.

  Furthermore, if the top plate 13 is moved together with the intermediate plate 12 to a target position in the A2 direction and the top plate 13 is rotated at the target position, the whole body of the subject P can be imaged. It is not necessary to make the moving stroke of the top plate 13 longer than that, and mechanical safety can be easily ensured.

(Example of operation of a conventional diagnostic device)
On the other hand, in the conventional diagnostic apparatus, when the intermediate plate 12 and the top plate 13 are arranged so as to be sandwiched between the other devices M1 and M2 (see FIG. 5), the intermediate plate 12 (top plate 13) is rotated. Then, the intermediate plate 12 (top plate 13) interferes with the other devices M1 and M2. This makes it difficult to ensure safety. FIG. 5 shows the intermediate plate 12 (top plate 13) interfering with the other devices M1 and M2 by broken lines.

  At this time, the intermediate position 33 of the C arm 3 is at the position P1. When the C arm 3 is moved in the X1 direction so as to image the whole body of the subject on the top board 13, the one end 3a of the C arm 3 and the X-ray source 4 interfere with other devices M1, M2 and the support column 11. To do. Even if the C arm 3 is moved in the Y1 direction, the one end portion 3a of the C arm 3 and the X-ray source 4 interfere with the other devices M1, M2 and the column portion 11. This makes it difficult to ensure safety.

<Modification of First Embodiment>
Next, a modification of the first embodiment will be described with reference to FIGS.

FIG. 10 is a block diagram of a medical couch device according to a modification, and FIG. 11 is a cross-sectional view showing a part of the medical couch device in cross section.
As shown in FIGS. 10 and 11, in the modification, a top plate slide mechanism 30 is added to the intermediate plate slide mechanism 20 and the top plate rotation mechanism 50 of the first embodiment.

[Top plate slide mechanism 30]
Next, an example of the top plate slide mechanism 30 will be described. In the first embodiment, the top plate 13 is configured to be rotatable by the top plate vertical shaft 51. However, in this modification, the top plate slide mechanism 30 is configured to be rotatable on the top plate vertical shaft 51, and The top plate 13 is configured to be movable on the top slide mechanism 30.

  The top plate slide mechanism 30 includes a guide rail 31, a slider 32, a rack gear (not shown), a pinion (not shown), and a motor (not shown).

  The guide rail 31 is fixed to the top plate vertical shaft 51. The slider 32 is fixed to the top plate 13. The slider 32 is fitted by a guide rail 31 so as to be movable along the longitudinal direction of the top plate 13. By moving the slider 32 in the longitudinal direction, the top plate 13 can move in the longitudinal direction with respect to the intermediate plate 12.

  The rack gear is disposed along the guide rail 31 and is fixed to the intermediate plate 12. The pinion is disposed so as to mesh with the rack gear and is fixed to the top plate 13. The motor is fixed to the top plate 13 and rotates the pinion. Electric power is supplied to the motor via a switch (not shown).

  When the switch is turned on, electric power is supplied to the motor, and the motor is rotated in the forward direction or the reverse direction. When the switch is turned off, power supply to the motor is stopped and the motor is stopped.

  When the motor rotates the pinion, for example, in the positive direction, the pinion rolls along the rack gear. Thereby, the top plate 13 moves in the A2 direction. When the motor rotates the pinion, for example, in the reverse direction, the pinion rolls along the rack gear. Thereby, the top plate 13 moves in the A1 direction. The amount of rotation of the motor is proportional to the amount of movement of the top plate 13 (the amount of movement relative to the intermediate plate 12) S2 (see FIG. 10).

[Operation of Diagnostic Device 1 of Modified Example]
Next, a series of operations when the subject placed on the top board 13 is imaged by the diagnostic apparatus 1 using the medical bed apparatus 10 according to the modification will be described.

  Similarly to the first embodiment, in the modified example, by using the intermediate plate slide mechanism 20 and the top plate rotation mechanism 50, the relative movement direction (Y1, Y2) of the C-arm 3 and the long length of the top plate 13 are used. The directions (A1, A2) are matched.

  When imaging the subject, the top plate 13 is moved in the longitudinal direction (A1, A2) using the top slide mechanism 30, so that the C arm 3 is not moved in the Y1, Y2 directions. The whole body of the subject P can be imaged with the arm 3 fixed.

Second Embodiment
Next, the diagnostic apparatus 1 according to the second embodiment will be described with reference to FIGS.

[X-ray imaging unit holding device 2]
An example of the X-ray imaging unit holding device 2 will be described.

  The X-ray imaging unit holding device 2 of the first embodiment is a ceiling traveling type, and the C-arm 3 is movable in a direction (X1, X2, Y1, Y2) orthogonal to each other along the ceiling by a slide rail. Configured. Therefore, the C arm 3 is configured to be movable from the position P1 to the position P2 (see FIG. 5). In contrast, the X-ray imaging unit holding device 2 of the second embodiment is a floor-standing type, and the C-arm 3 is fixed to the floor surface. Therefore, the C arm 3 is fixed at the position P2, for example (see FIG. 14).

  The X-ray imaging unit holding device 2 of the second embodiment is the same as that of the first embodiment except for the above differences. That is, the X-ray imaging unit holding device 2 of the second embodiment includes a C arm 3, an X-ray source 4, and an X-ray detector 5.

[Medical couch device 10]
Next, an example of the medical couch device 10 will be described. FIG. 12 is a block diagram of the medical couch device 10.

  In the first embodiment, the intermediate plate slide mechanism 20 is provided, whereas in the second embodiment, the intermediate plate rotation mechanism 40 is provided. Similar to the first embodiment, the top plate rotation mechanism 50 is also provided in the second embodiment.

  In the top plate rotation mechanism 50, the top plate vertical shaft 51 is positioned away from the intermediate plate vertical shaft 41 with respect to the column portion 11, and the top plate 13 is rotated around the top plate vertical shaft 51. The space where the one end 3a (X-ray source 4 or X-ray detector 5) of the C arm 3 enters is formed below the top plate 13.

[Intermediate plate rotating mechanism 40]
Next, an example of the intermediate plate rotation mechanism 40 will be described. FIG. 13 is a cross-sectional view showing a part of the medical couch device in cross section, and FIG. 14 is a plan view of the medical couch device when an intermediate portion in the longitudinal direction of the top plate is positioned in the imaging region.

  As shown in FIGS. 13 and 14, the intermediate plate rotating mechanism 40 includes an intermediate plate vertical shaft 41, a wheel gear (not shown), a worm (not shown), a motor (not shown), and positioning means (not shown). ).

(Vertical shaft 41 for intermediate plate)
The intermediate plate vertical shaft 41 is fixed to the column portion 11. The intermediate plate 12 is configured to be rotatable with respect to the support column 11 around the intermediate plate vertical axis 41.

  The wheel gear has a large number of teeth arranged in the circumferential direction around the center of the intermediate plate vertical shaft 41 and is fixed to the support column 11. The worm is arranged to mesh with the wheel gear and is fixed to the intermediate plate 12. The motor is fixed to the intermediate plate 12 and rotates the worm. Electric power is supplied to the motor via a switch (not shown).

  When the switch is turned on, electric power is supplied to the motor, and the motor is rotated in the forward direction or the reverse direction. When the switch is turned off, power supply to the motor is stopped and the motor is stopped.

  When the motor rotates the worm in the positive direction, for example, the worm advances in the circumferential direction while meshing with the wheel gear. Thereby, the intermediate plate 12 is rotated in the CW1 direction (see FIG. 14). At this time, the top plate 13 is also rotated integrally with the intermediate plate 12. When the motor rotates the worm in the reverse direction, for example, the worm advances in the circumferential direction while meshing with the wheel gear. Thereby, the intermediate plate 12 is rotated in the CW2 direction (see FIG. 14). At this time, the top plate 13 is also rotated integrally with the intermediate plate 12. The rotation amount of the motor is proportional to the rotation angle θ1 of the intermediate plate 12 (top plate 13).

  Similarly to the first embodiment, the rotation amount of the motor is proportional to the rotation angle θ2 of the top plate 13 using the top plate rotation mechanism 50.

  The intermediate plate rotating mechanism 40 rotates the top plate 13 by θ1 around the intermediate plate vertical axis 41, and the top plate rotating mechanism 50 rotates the top plate 13 by θ2 around the vertical axis for top plate. The displacement amount (rotation angle) of the top plate 13 is indicated by “θ1 + θ2” in FIG.

  Even if the C-arm 3 is fixed by displacing the top plate 13 using the intermediate plate rotation mechanism 40 and the top plate rotation mechanism 50, the base end from the distal end portion of the top plate 13 in the longitudinal direction is fixed. Arbitrary parts up to the part are positioned in the imaging region. In other words, the C-arm 3 is relatively moved from the longitudinal end portion to the base end portion of the top plate 13.

(Positioning means)
The positioning means is configured to position the intermediate plate 12 at an arbitrary rotation angle. Since the intermediate plate 12 can be positioned by the holding torque of the motor and the frictional force between the worm and the wheel gear, it is not necessary to provide a positioning means other than a motor or the like, but the rotation of the intermediate plate 12 is prevented. A brake may be provided.

  By positioning the intermediate plate 12 at an arbitrary rotation angle by the positioning means, the relative movement direction of the C-arm 3 and the longitudinal direction of the top plate 13 are matched (see FIGS. 14 to 16). The top plate 13 can be restrained. Details of these states will be described later (see operation of diagnostic device 1).

  As shown in FIG. 5, when the intermediate plate 12 is sandwiched between the other devices M1 and M2, when the intermediate plate 12 is rotated around the intermediate plate vertical axis 41, the intermediate plate 12 becomes another device. In order to interfere with M1 and M2, such a configuration in which the intermediate plate 12 is rotated around the intermediate plate vertical axis 41 is not used. In such a case, the configuration of the first embodiment is used. Nor.

[Operation of Diagnosis Device 1 of Second Embodiment]
Next, a series of operations when imaging the subject placed on the top board 13 by the diagnostic apparatus 1 using the medical bed apparatus 10 will be described with reference to FIGS. 14 to 16. FIG. 14 is a plan view of the medical bed apparatus when the middle portion of the top plate in the longitudinal direction is positioned in the imaging region, and FIG. 15 is a medical plan when the distal end portion in the longitudinal direction of the top plate is positioned in the imaging region. FIG. 16 is a plan view of the medical couch device when the longitudinal base end portion of the couchtop is positioned in the imaging region. As described above, the X-ray imaging unit holding device 2 is a floor-standing type, and the C-arm 3 is fixed at the position P2.

  The control unit receives the operation information of the operator and controls the top plate rotating mechanism 50, thereby rotating the top plate 13 counterclockwise CW2 about the top plate vertical axis 51. Thereby, the moving directions Y1 and Y2 of the C arm 3 and the longitudinal directions A1 and A2 of the top plate 13 are made to coincide. FIG. 14 shows a state in which the moving directions Y1 and Y2 of the C arm 3 and the longitudinal directions A1 and A2 of the top plate 13 are matched.

  In the photographing state shown in FIG. 14, the middle part of the top plate 13 in the longitudinal direction is the photographing region. Thereby, it is possible to image an intermediate part (chest, abdomen, etc.) of the subject P on the top plate 13 in the body axis direction.

  In the imaging state shown in FIG. 14, in order to set the base end portion in the longitudinal direction of the top plate 13 as the imaging region, the control unit receives the operation information of the operator and controls the intermediate plate rotating mechanism 40 so that The plate 12 is rotated clockwise CW1 around the intermediate plate vertical axis 41, and the top plate 13 is rotated counterclockwise CW2 around the top plate vertical axis 51 by the top plate rotating mechanism 50. Thereby, the moving directions Y1 and Y2 of the C arm 3 and the longitudinal directions A1 and A2 of the top plate 13 are made to coincide. FIG. 15 shows a state in which the moving directions Y1 and Y2 of the C arm 3 and the longitudinal directions A1 and A2 of the top plate 13 are matched.

  In the photographing state shown in FIG. 15, the base end portion of the top plate 13 in the longitudinal direction is the photographing region. As a result, the base end portion (eg, the tip of the subject) of the subject P on the top 13 can be imaged.

  In order to set the longitudinal direction tip of the top plate 13 as a shooting region from the shooting state shown in FIG. 14, the control unit receives the operation information of the operator and controls the intermediate plate rotating mechanism 40, whereby the intermediate plate 12 is rotated counterclockwise CW2 around the intermediate plate vertical axis 41, and the controller receives the operation information of the operator and controls the top plate rotation mechanism 50, whereby the top plate 13 is set to the target rotation angle. In such a manner, it is rotated clockwise CW1 around the vertical axis 51 for the top plate. Thereby, the moving directions Y1 and Y2 of the C arm 3 and the longitudinal directions A1 and A2 of the top plate 13 are made to coincide. FIG. 16 shows a state in which the movement directions Y1 and Y2 of the C arm 3 and the longitudinal directions A1 and A2 of the top plate 13 are matched.

  In the shooting state shown in FIG. 16, the front end of the top plate 13 in the longitudinal direction is the shooting region. As a result, it is possible to image the distal end portion (head or the like) of the subject P on the top board 13.

  That is, even if the C-arm 3 is fixed by displacing the top plate 13 by using the intermediate plate rotation mechanism 40 and the top plate rotation mechanism 50, the top end portion of the top plate 13 from the longitudinal end portion to the base end portion Any part up to can be positioned in the imaging region. Thereby, the whole body of the subject P can be imaged.

  Furthermore, if the top plate 13 is rotated around the intermediate plate vertical axis 41 together with the intermediate plate 12 (with the target rotation angle), and the top plate 13 is rotated at the position of the rotation angle 51 by the vertical axis 51 for the top plate, Since the whole body of the subject P can be imaged, the top plate 13 at the time of imaging does not need to be largely separated from the support column 11, and mechanical safety can be easily ensured.

  Next, a description will be given of a case where the single medical couch device 10 corresponds to the X-ray imaging unit holding devices 2 arranged in two places. FIG. 17 is a plan view of a medical bed apparatus that can correspond to the X-ray imaging unit holding apparatuses 2 arranged at two places. FIG. 17 shows the positions of the C arms 3 of the X-ray imaging unit holding device 2 arranged at two locations as P1 and P2.

  As shown in FIG. 17, in the imaging when the C-arm 3 is at the position P1, the medical couch device 10 may be operated in the same manner as the operation of the diagnostic device 1 of the second embodiment. The intermediate plate 12 and the top plate 13 at this time are shown by broken lines in FIG.

  Next, in photographing when the C-arm is at the position P2, the intermediate plate 12 is rotated around the intermediate plate vertical axis 41, and the top plate 13 is rotated around the top plate vertical axis 51. What is necessary is just to move the intermediate | middle board 12 and the top plate 13 to the position shown as a continuous line in FIG.

When the intermediate plate 12 and the top plate 13 are located at the positions indicated by broken lines in FIG. 17, the intermediate plate 12 may be rotated in the clockwise direction CW1 around the intermediate plate vertical axis 41.
In this way, the single medical couch device 10 can correspond to the X-ray imaging unit holding devices 2 arranged at two locations.

<Modification of Second Embodiment>
Next, a modification of the second embodiment will be described. In the second embodiment, the intermediate plate rotating mechanism 40 and the top plate rotating mechanism 50 are provided. However, the top plate 13 is replaced with the top plate rotating mechanism 50 or together with the top plate rotating mechanism 50. On the other hand, a top plate slide mechanism 30 movable in the longitudinal direction may be provided (see FIG. 24). Since the top plate slide mechanism 30 has been described in the modification of the first embodiment, the description thereof is omitted.

  As shown in FIG. 18, in Modification 1 of the second embodiment, a top plate slide mechanism 30 is provided in addition to the intermediate plate rotation mechanism 40 and the top plate rotation mechanism 50.

  In the medical couch device 10 in which the intermediate plate rotation mechanism 40 and the top plate rotation mechanism 50 are provided, but the top plate slide mechanism 30 is not provided, the intermediate plate vertical shaft 41 with respect to the C arm 3 fixed at the position P2. When the intermediate plate 12 is rotated around, the distance between the top plate 13 and the C arm 3 changes. In the diagnostic device 1 shown in FIGS. 14 to 16, since the change in the distance is slight, the change can be handled by rotating the C-arm 3 in the directions D1 and D2. However, as the rotation angle of the intermediate plate 12 increases, the change in the distance also increases. Therefore, the change in the distance cannot be accommodated by rotating the C-arm 3 in the directions D1 and D2.

  In the modification 1 of 2nd Embodiment, the intermediate | middle board rotation mechanism 40 and the top-plate rotation mechanism 50 are provided, and also in the medical couch apparatus 10 in which the top-plate slide mechanism 30 is provided, the top-plate 13 is moved to a elongate direction. By doing so, even if the rotation angle of the intermediate plate 12 is increased and the distance changes greatly, the distance to the C arm 3 can be kept constant.

  Next, Modification 2 of the second embodiment will be described with reference to FIGS. 19 and 20. FIG. 19 is a front view of a medical couch device according to a modification of the second embodiment, and FIG. 20 is a side view of the medical couch device.

  The medical couch device according to the second modification of the second embodiment includes a top plate slide mechanism 30 and an intermediate plate rotation mechanism 40 (see FIG. 24).

  In such a combination of the top plate slide mechanism and the intermediate plate rotation mechanism, the intermediate plate vertical shaft 41 is positioned away from the support column 11 and the top plate 13 together with the intermediate plate 12 around the intermediate plate vertical shaft 41. When the is rotated, a gap is formed below the top plate 13 so that the one end 3a (X-ray source 4 or X-ray detector 5) of the C-arm 3 enters.

  In the conventional medical couch device shown in FIG. 1, when the C arm 3 is largely rotated, the C arm 3 and the X-ray source 4 interfere with the support column 11. For this reason, a part of the whole body of the subject P, here, the tip of the foot cannot be imaged.

  On the other hand, in the second modification, the control unit receives the operation information of the operator and controls the intermediate plate rotating mechanism 40, thereby rotating the intermediate plate 12 around the intermediate plate vertical axis 41 and the top plate. By using the slide mechanism 30 to move the top plate 13 with respect to the intermediate plate 12 so that the toes are positioned in the imaging region, the toes can be photographed. With this configuration, the entire body of the subject P can be imaged without causing the C-arm 3 and the column 11 to interfere with each other.

<Third Embodiment>
Next, a medical couch device according to a third embodiment will be described with reference to FIGS. FIG. 21 is a block diagram of the medical couch device according to the third embodiment, FIG. 22 is a cross-sectional view showing a part of the medical couch device in cross section, and FIG. 23 is a side view of the medical couch device.

  The medical couch device 10 of the third embodiment has an intermediate plate slide mechanism 20 and an intermediate plate rotation mechanism 40 as a premise. Furthermore, at least one of the top plate slide mechanism 30 and the top plate rotation mechanism 50 is provided.

  As shown in FIGS. 21 to 23, as an example of the medical couch device 10 of the third embodiment, in addition to the intermediate plate slide mechanism 20 and the intermediate plate rotation mechanism 40 which are the premise, the top plate slide mechanism 30 and the top plate rotation Both mechanisms 50 are included.

  The intermediate plate slide mechanism 20, the top plate slide mechanism 30, the intermediate plate rotation mechanism 40, and the top plate rotation mechanism 50 are the same as the mechanisms described in the above embodiments, and thus the description thereof is omitted here. To do.

  By including the intermediate plate slide mechanism 20, the top plate slide mechanism 30, the intermediate plate rotation mechanism 40, and the top plate rotation mechanism 50, the degree of freedom of the entire medical bed apparatus 10 becomes higher, and the medical bed apparatus 10, X-rays The X-ray imaging unit holding device 2 can image the whole body of the subject P regardless of how all the devices including the imaging unit holding device 2 and the other devices M1 and M2 are laid out. Further, it is not necessary to change the direction of the subject P with respect to the top board 13.

  In addition, although what provided both the top-plate slide mechanism 30 and the top-plate rotation mechanism 50 was shown, it is not restricted to both. For example, the top plate slide mechanism 30 may be provided as one side, and the top plate rotation mechanism 50 may be provided as one side (see FIG. 24). Even with such a configuration, the degree of freedom of the entire medical couch device 10 is increased.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, rewrites, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

M1 Other apparatus M2 Other apparatus P Subject 1 Diagnostic apparatus 2 X-ray imaging unit holding device 3 C arm 3a One end 3b Other end 3c Intermediate unit 4 X-ray source 5 X-ray detector 10 Medical bed apparatus 11 Strut unit 12 Intermediate plate 13 Top plate 14 Holding portion 20 Intermediate plate slide mechanism 21 Guide rail 22 Slider 30 Top plate slide mechanism 31 Guide rail 32 Slider 40 Intermediate plate rotation mechanism 41 Vertical axis for intermediate plate 50 Top plate rotation mechanism 51 Vertical for top plate axis

Claims (2)

An X-ray imaging unit holding device having a C-arm, an X-ray source, and an X-ray detector, and imaging a subject;
A medical bed apparatus having a support column fixed at the installation location and a long top plate on which the subject is placed;
In a diagnostic device having
The C-arm has one end where the X-ray source is disposed and the other end where the X-ray detector is disposed, and is an area between the one end and the other end, the length of the top plate The C arm moves relative to the top so that any one of the whole area from one end to the other end in the scale direction is an imaging area for imaging the subject on the top;
The medical bed apparatus is:
An intermediate support body having a substantially rectangular plate-like shape and disposed between the support column and the top plate;
An intermediate support slide mechanism capable of moving the intermediate support in the longitudinal direction with respect to the support column so as to put the distal end side of the intermediate support in the imaging region;
A top plate rotating mechanism for rotating the top plate around a vertical axis for a top plate provided on the front end side of the intermediate support so that the direction of relative movement of the C arm coincides with the long direction of the top plate. When,
A diagnostic device. An X-ray imaging unit holding device having a C-arm, an X-ray source, and an X-ray detector, and imaging a subject;
A medical bed apparatus having a support column fixed at the installation location and a long top plate on which the subject is placed;
In a diagnostic device having
The C arm has one end where the X-ray source is disposed and the other end where the X-ray detector is disposed, and images the subject on the top plate between the one end and the other end. A shooting area that is an area,
The medical bed apparatus is:
An intermediate support body having a substantially rectangular plate-like shape and disposed between the support column and the top plate;
An intermediate support rotating mechanism capable of rotating the intermediate support around the vertical axis for the intermediate support with respect to the support column;
A top plate rotating mechanism capable of rotating the top plate about a vertical axis for the top plate with respect to the intermediate support;
Have
The intermediate support rotating mechanism and the top plate rotating mechanism are configured to support the intermediate support so that an arbitrary part from one end portion to the other end portion in the longitudinal direction of the top plate is positioned in the imaging region. Rotating around the vertical axis for the body and rotating the top plate around the vertical axis for the top plate,
Diagnostic device.

Images