WO2018186477A1

WO2018186477A1 - Radiography device

Info

Publication number: WO2018186477A1
Application number: PCT/JP2018/014630
Authority: WO
Inventors: 淳夫齋藤
Original assignee: 株式会社島津製作所
Priority date: 2017-04-05
Filing date: 2018-04-05
Publication date: 2018-10-11
Also published as: JP6780775B2; JPWO2018186477A1

Abstract

When a roll member 12 swings in the clockwise direction, a pair of second contact members 73, 74 swing to the left, and a second contact member 74 contacts a first contact member 72. Also, when the roll member 12 swings in the clockwise direction, the second contact member 74 presses against the first contact member 72. Thus, a moving member 65, which is linked to the first contact member 72, moves to the left. With movement of the moving member 65 to the left, a moving end 63 of a Cableveyor 61 moves to the left while rotating, and wiring guided by the Cableveyor 61 moves together with the Cableveyor 61 without slack.

Description

Radiography equipment

The present invention includes an examination table, a radiation irradiation unit that irradiates a subject on the examination table with radiation, and a radiation detection unit that detects radiation irradiated from the radiation irradiation unit and transmitted through the subject. The present invention relates to a radiation imaging apparatus provided.

For example, an X-ray imaging apparatus used for performing cardiovascular system examinations and operations includes an examination table with a top plate on which a subject is placed, an X-ray tube, and an examination that is irradiated from the X-ray tube. An X-ray detector that detects X-rays that have passed through the subject on the table, a substantially C-shaped C-shaped arm that has an arcuate guide and supports the X-ray tube and the X-ray detector; A slide mechanism that slidably supports the C-type arm by engaging with the arcuate guide portion, and a pivot that supports the C-type arm so that the C-type arm can be pivoted about a horizontal axis through the slide mechanism. And a mechanism. In addition, a biplane X-ray imaging apparatus that images a subject from two different directions has a configuration in which a pair of C-type arms each having the X-ray tube and the X-ray detection unit described above are provided.

In the examination table used in such an X-ray imaging apparatus, the top plate on which the subject is placed is horizontal in order to perform X-ray imaging or X-ray fluoroscopy from various angles to the subject. It is configured to be movable and swingable. That is, the top plate in such an examination table is a slide operation that is a horizontal movement in the longitudinal direction that is the body axis direction of the subject placed on the top plate, and the subject placed on the top plate. A sliding motion that is a horizontal movement in the short direction, which is a direction perpendicular to the body axis, a roll motion that swings about an axis that faces the body axis of the subject placed on the top plate, A tilting motion that swings about an axis that faces in a direction perpendicular to the body axis of the subject placed on the plate can be executed.

Patent Document 1 discloses an X-ray imaging apparatus having a top plate that can be tilted in an X-ray imaging apparatus having a C-shaped arm.

JP 2016-22247 A

When the subject is observed from the direction of the body axis, the sliding movement of the top plate in the short direction and the roll operation of the top plate are performed independently. For this reason, the wiring from the support part which supports a top plate to a top plate needs to have the length which can respond | correspond to the sliding operation | movement and roll operation | movement of the short direction of a top plate. For this reason, depending on the posture of the top board, sagging occurs in the wiring. When sagging occurs in the wiring, there is a possibility of contact with wiring-type equipment. In addition, it is necessary to form a space in consideration of the slack of the wiring.

The present invention has been made to solve the above problems, and provides a radiographic apparatus capable of performing a sliding operation and a rolling operation in the short direction of the top plate without causing a slack in the wiring. For the purpose.

The invention according to claim 1 detects an examination table, a radiation irradiation unit that irradiates the subject on the examination table with radiation, and radiation that has been irradiated from the radiation irradiation unit and transmitted through the subject. In the radiation imaging apparatus, the examination table is placed on the top plate with respect to the top plate, the base, and the base on which the subject is placed. A slide member that reciprocates in a direction orthogonal to the body axis of the subject, and a parallel to the body axis of the subject placed on the top plate with respect to the slide member while supporting the top plate A roll member that swings around an axis, and a fixed end fixed to the base, and a moving end that is pivotable with respect to the slide member or the roll member. A cable carrier (registered trademark) that guides the wiring to the roll member And wherein the Rukoto.

According to a second aspect of the present invention, in the first aspect of the present invention, the moving end of the cable carrier is guided by a guide rail disposed on the slide member and is placed on the top plate. It is arranged so as to be rotatable with respect to a moving member that reciprocates in a direction perpendicular to the body axis of the examiner.

A third aspect of the present invention is the subject according to the second aspect, wherein the moving member is placed on the top plate as the slide member reciprocates or the roll member swings. A moving mechanism for moving in a direction perpendicular to the body axis.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the moving mechanism includes a first contact member disposed on the movable member and a second contact member disposed on the roll member. And the second abutting member presses the first abutting member as the slide member reciprocates or the roll member swings, thereby moving the moving member into the abutting member. It is moved in a direction perpendicular to the body axis of the subject placed on the top board.

According to a fifth aspect of the present invention, in the first aspect of the present invention, the moving end of the cable carrier is disposed so as to be rotatable with respect to the roll member.

According to the first to fifth aspects of the present invention, it is possible for the top board to execute the sliding operation and the rolling operation in the short direction without causing slack in the wiring due to the action of the cable carrier.

According to the second to fourth aspects of the present invention, the cable carrier can be shortened compared to the case where the moving end of the cable carrier is disposed on the roll member, and the entire apparatus can be downsized. It becomes possible.

1 is a schematic diagram of an X-ray imaging apparatus as a radiation imaging apparatus according to the present invention. It is a side surface schematic diagram of the examination table 1 which concerns on 1st Embodiment. It is a plane outline figure of examination table 1 concerning a 1st embodiment. It is a side surface schematic diagram which shows the roll mechanism for making the top plate 11 roll-operate with the roll member 12. FIG. It is a side surface schematic diagram which shows the guide mechanism of wiring. It is a perspective view which shows the principal part of the guide mechanism of wiring. It is a side surface schematic diagram which shows the guidance operation | movement of the wiring by the cable bearer 61 accompanying the reciprocation of the slide member 13. FIG. FIG. 6 is a schematic side view showing a wiring guiding operation by the cable carrier 61 when the roll member 12 swings. It is a side surface schematic diagram of the examination table 1 which concerns on 2nd Embodiment. It is a side surface schematic diagram of the examination table 1 which concerns on 2nd Embodiment. It is a side surface schematic diagram of the examination table 1 which concerns on 2nd Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram of an X-ray imaging apparatus as a radiation imaging apparatus according to the present invention.

The X-ray imaging apparatus detects an X-ray irradiation unit 31 including an X-ray tube and a collimator, and X-rays that have been irradiated from the X-ray irradiation unit 31 and passed through a subject lying on the examination table 1. A flat panel detector 32 as an X-ray detection unit, a substantially C-shaped C-type arm 33 that supports the X-ray irradiation unit 31 and the flat panel detector 32, and a slide that supports the C-type arm 33 so as to be slidable. Part 34, a turning part 35 for turning the slide part 34, and a support part 36 for supporting the turning part 35 in a standing state with respect to the floor surface.

An arcuate guide portion 37 is formed on the C-shaped arm 33, and the slide portion 34 supports the C-shaped arm 33 in a slidable state by engaging with the guide portion 37. The C-shaped arm 33 forms an X-ray irradiation unit 31 and a flat panel detector 32, and an X-ray axis extending from the focal point of the X-ray tube in the X-ray irradiation unit 31 to the flat panel detector 32 forms a guide unit 37. It is supported in a state where it matches the diameter of the arc. The swivel unit 35 swivels the slide unit 34 around the axis orthogonal to the X-ray axis extending from the focal point of the X-ray tube to the flat panel detector 32 together with the C-shaped arm 33 and the like. In the X-ray imaging apparatus having such a configuration, X-ray fluoroscopy or X-ray imaging is performed on the subject on the examination table 1 from any direction by sliding and turning the C-shaped arm 33. It becomes possible.

Next, the configuration of the examination table 1 which is a characteristic part of the present invention will be described. FIG. 2 is a schematic side view of the examination table 1 according to the first embodiment. FIG. 3 is a schematic plan view of the examination table 1 according to the first embodiment.

The examination table 1 includes a top plate 11 on which a subject is placed, a roll member 12, a slide member 13, and a base 14. The top plate 11 is reciprocated in the longitudinal direction indicated by an arrow A in FIGS. 2 and 3 with respect to the roll member 12, the slide member 13, and the base 14 by being guided by the guide member 42. This longitudinal direction is the body axis direction of the subject lying on the top plate 11. In addition, the examinee uses the side of the top plate 11 where the width is reduced (left side in FIGS. 2 and 3) as the head side, and the opposite side (right side in FIGS. 2 and 3) as the foot side. 11 lying down.

Further, the slide member 13 is reciprocated in the short direction indicated by an arrow B in FIG. 3 with respect to the base 14 together with the top plate 11 and the roll member 12 by being guided by the guide member 41. This short direction is a direction orthogonal to the above-described longitudinal direction.

FIG. 4 is a schematic side view showing a roll mechanism for rolling the top plate 11 together with the roll member 12.

A pair of guide bars 52 are disposed on the slide member 13. The roll member 12 is provided with an arcuate guide groove 51. The pair of guide bars 52 are disposed in the guide groove 51. For this reason, the roll member 12 can swing as shown by an arrow C in FIG. 4 by the action of the guide groove 51 and the guide bar 52. The roll member 12 is provided with a pinion 53 that rotates by driving a motor (not shown). In addition, an arcuate rack region (not shown) that meshes with the pinion 53 is formed on the slide member 13. For this reason, by rotating the pinion 53 by driving the motor, the roll member 12 swings together with the top plate 11, and the roll operation is executed.

Next, a configuration for guiding the wiring during the movement operation and roll operation of the top plate 11 in the short direction in the examination table 1 described above will be described. FIG. 5 is a schematic side view showing a wiring guide mechanism. FIG. 6 is a perspective view showing a main part of the wiring guide mechanism.

This wiring guide mechanism uses a cable carrier 61. “Cable bearer” is a registered trademark of Tsubakimoto Chain Co., Ltd. The cable carrier 61 has a configuration in which a large number of continuous links are connected so as to be swingable by a shaft. A cable such as a wiring is accommodated in the connected links, and the moving end connected to the moving member and the fixed member This is a mechanism for supporting and guiding the wiring and the like between the fixed end and the fixed end. The cable carrier 61 can be extended only in the sliding direction and does not hang down in its own weight direction.

In the cable carrier 61, a fixed end 62 is fixed to the base 14, and a moving end 63 is rotatably arranged with respect to the slide member 13 or the roll member 12, and wiring from the base 14 to the roll member 12 is provided. It has the structure which guides. More specifically, as shown in FIGS. 5 and 6, the moving end 63 of the cable carrier 61 is placed on the top plate 11 by being guided by a guide rail 66 disposed on the slide member 13. A movable member 65 that reciprocates in a direction perpendicular to the body axis of the subject (in the direction of arrow B in FIGS. 2 to 4, hereinafter referred to as “arrow B direction”) is rotatable about the central axis 64. It is arranged. On the other hand, the fixed end 62 of the cable carrier 61 is fixed to the base 14 by a fixing member 67 arranged on the base 14 as shown in FIG.

The wiring guide mechanism has a moving mechanism that moves the moving member 65 in the direction of arrow B as the slide member 13 reciprocates or the roll member 12 swings. More specifically, the moving mechanism includes a pair of

first contact members

71 and 72 disposed on the moving member 65 and a pair of second contact members 73 disposed on the roll member 12. 74, and the second abutting

member

73 or 74 presses the first abutting

member

71 or 72 as the slide member 13 reciprocates or the roll member 12 swings. 65 is moved in the direction of arrow B.

Hereinafter, the operation of guiding the wiring by the cable carrier 61 as the slide member 13 reciprocates or the roll member 12 swings will be described. FIG. 7 is a schematic side view showing the wiring guiding operation by the cable carrier 61 as the slide member 13 reciprocates. FIG. 8 is a schematic side view showing the wiring guiding operation by the cable carrier 61 accompanying the swinging of the roll member 12.

As shown in FIG. 7, when the slide member 13 moves leftward from the state shown in FIG. 5, the pair of

second contact members

73 and 74 also move leftward as the slide member 13 moves. Eventually, the second contact member 74 contacts the first contact member 72. Then, after the second contact member 74 contacts the first contact member 72, when the slide member 13 further moves leftward, the second contact member 74 is moved to the first contact member 72. Press. Thereby, the moving member 65 connected to the first contact member 72 also moves leftward.

As described above, the fixed end 62 of the cable carrier 61 is fixed to the base 14. The moving end 63 of the cable carrier 61 is disposed so as to be rotatable with respect to the moving member 65. For this reason, as the moving member 65 moves to the left, the moving end 63 of the cable carrier 61 moves to the left while rotating, and the wiring guided by the cable carrier 61 does not sag and the cable carrier 61 does not sag. Move with.

When the slide member 13 moves to the right from the state shown in FIG. 5, the second contact member 73 comes into contact with the first contact member 71 as the slide member 13 moves. Then, after the second contact member 73 contacts the first contact member 71, when the slide member 13 further moves to the right, the second contact member 73 becomes the first contact member 71. , And the moving member 65 connected to the first contact member 71 also moves in the right direction. As the moving member 65 moves in the right direction, the moving end 63 of the cable bearer 61 moves to the right while rotating, and the wiring guided by the cable bearer 61 stays together with the cable bearer 61 without causing slack. Moving.

On the other hand, as shown in FIG. 8, when the roll member 12 is swung clockwise from the state shown in FIG. 5, the pair of

second contact members

73 and 74 are also moved along with the swing of the roll member 12. The second abutting member 74 abuts on the first abutting member 72 after a while swinging leftward. Then, after the second abutting member 74 abuts on the first abutting member 72, when the roll member 12 further swings in the clockwise direction, the second abutting member 74 is in contact with the first abutting member 72. The member 72 is pressed. Thereby, the moving member 65 connected to the first contact member 72 also moves leftward.

Also at this time, the fixed end 62 of the cable carrier 61 is fixed to the base 14, and the moving end 63 of the cable carrier 61 is disposed so as to be rotatable with respect to the moving member 65. Along with the movement of 65 to the left, the moving end 63 of the cable carrier 61 moves to the left while rotating, and the wiring guided by the cable carrier 61 moves together with the cable carrier 61 without causing slack.

When the roll member 12 swings counterclockwise from the state shown in FIG. 5, the second contact member 73 contacts the first contact member 71 as the roll member 12 swings. . Then, after the second abutting member 73 abuts on the first abutting member 71, when the roll member 12 further swings counterclockwise, the second abutting member 73 is in contact with the first abutting member 71. The contact member 71 is pressed, and the moving member 65 connected to the first contact member 71 also moves in the right direction. As the moving member 65 moves in the right direction, the moving end 63 of the cable bearer 61 moves to the right while rotating, and the wiring guided by the cable bearer 61 stays together with the cable bearer 61 without causing slack. Moving.

According to the examination table 1 according to the first embodiment, the moving end 63 of the cable bearer 61 is disposed on the slide member 13 to reduce the size of the apparatus configuration including the cable bearer 61, and the moving end 63 of the cable bearer 61 is slid. It is possible to move the moving end 63 so as to follow the swinging of the roll member 12 by configuring it so that the slide is assisted by the moving mechanism.

Next, another embodiment of the present invention will be described. 9 to 11 are schematic side views of the examination table 1 according to the second embodiment. FIG. 10 shows a state where the slide member 13 moves rightward from the state shown in FIG. 9 and the roll member 12 swings counterclockwise from the state shown in FIG. FIG. 11 shows a state in which the slide member 13 moves leftward from the state shown in FIG. 9 and the roll member 12 swings clockwise from the state shown in FIG.

In the examination table 1 according to the second embodiment, the fixed end 62 of the cable carrier 61 is fixed to the base 14 and the moving end 63 of the cable carrier 61 is disposed so as to be rotatable with respect to the roll member 12. It has a configuration. With this configuration, as shown in FIGS. 9 to 11, even when the movement of the slide member 13 and the swing of the roll member 12 are performed in association with each other, the deformation of the cable carrier 61 and the movement of the cable carrier 61 are performed. By guiding the wiring while being accommodated in the cable carrier 61 by the rotation of the end 63, it is possible to execute a sliding operation and a rolling operation in the short direction by the top plate 11 without causing a slack in the wiring. Become.

In the above-described embodiment, the case where the present invention is applied to the examination table 1 used in the X-ray imaging apparatus having the C-shaped arm 33 has been described. However, the present invention is used in X-ray imaging apparatuses using other imaging methods. The present invention may be applied to the examination table 1.

DESCRIPTION OF SYMBOLS 1 Examination table 11 Top plate 12 Roll member 13 Slide member 14 Base 31 X-ray irradiation part 32 Flat panel detector 33 C-type arm 34 Slide part 35 Turning part 36 Support part 41 Guide member 42 Guide member 51 Guide groove 52 Guide bar 53 Pinion 61 Cable carrier 62 Fixed end 63 Moving end 65 Moving member 66 Guide rail 71 First contact member 72 First contact member 73 Second contact member 74 Second contact member

Claims

An examination table, a radiation irradiation unit that irradiates the subject on the examination table with radiation, and a radiation detection unit that detects radiation irradiated from the radiation irradiation unit and transmitted through the subject. In radiography equipment,
The examination table is
A top plate on which the subject is placed;
The base,
A slide member that reciprocates in a direction perpendicular to the body axis of the subject placed on the top plate with respect to the base;
In a state where the top plate is supported, a roll member that swings about an axis parallel to the body axis of the subject placed on the top plate with respect to the slide member;
A fixed end is fixed to the base, and a moving end is rotatably arranged with respect to the slide member or the roll member, and a cable carrier that guides the wiring from the base to the roll member;
A radiation imaging apparatus comprising:
The radiographic apparatus according to claim 1,
The moving end of the cable carrier is guided by a guide rail disposed on the slide member, thereby moving back and forth in a direction perpendicular to the body axis of the subject placed on the top plate. A radiographic apparatus arranged to be rotatable.
The radiation imaging apparatus according to claim 2,
A radiation imaging apparatus having a moving mechanism that moves the moving member in a direction orthogonal to the body axis of the subject placed on the top plate as the slide member reciprocates or the roll member swings.
The radiographic apparatus according to claim 3,
The moving mechanism includes a first abutting member disposed on the moving member and a second abutting member disposed on the roll member. The reciprocating movement of the slide member or the roll member When the second abutting member presses the first abutting member in accordance with the swinging motion, the moving member is placed in a direction perpendicular to the body axis of the subject placed on the top plate. Radiographic equipment to be moved.
The radiographic apparatus according to claim 1,
The moving end of the cable carrier is a radiation imaging apparatus arranged to be rotatable with respect to the roll member.