Medical image diagnostic apparatus and magnetic resonance imaging apparatus

Patent metadata

Field	Value
Publication number	US-11185293-B2
Application number	US-201615336354-A
Country	US
Kind code	B2
Filing date	Oct 27, 2016
Priority date	Oct 30, 2015
Publication date	Nov 30, 2021
Grant date	Nov 30, 2021

Abstract

According to one embodiment, a medical image diagnostic apparatus includes a gantry, a couch, a movable base, a screen, a reflecting plate, and a support body. The gantry has a bore formed therein and performs medical imaging. The couch is configured to move the table top along the central axis of the bore. The movable base is provided independently of the table top so as to be movable along the central axis of the bore. The screen is provided on the movable base. An image from a projector is projected on the screen. The reflecting plate reflects the image projected on the screen. The support body is provided on the movable base and supports the reflecting plate.

First claim

The invention claimed is:

1. A medical image diagnostic apparatus comprising:
a gantry including a bore and a mechanism for medical imaging;
a couch including a table top and a base, the base being configured to support the table top and move the table top relative to the gantry along a central axis of the bore and along a vertical direction;
a movable base which is structurally separated from the table top and connectable to the table top, and provided in the bore so as to move along the central axis of the bore;
a screen which is provided on the movable base and on which an image from a projector is projected;
a reflecting plate that reflects the image projected on the screen;
a support body provided on the movable base and that supports the reflecting plate; and
a connecting portion which connects between the table top and the movable base;
wherein the table top connects with the movable base by moving upward to a position to be connected and disconnects from the movable base by moving downward from the position to be connected, while at least a portion of the movable base is arranged inside the bore.

2. The apparatus of claim 1 , wherein the movable base is arranged in the bore so as to position the screen at an end portion of the bore while the table top is arranged outside the bore.

3. The apparatus of claim 1 , wherein the connecting portion includes a first connecting portion which is provided on the movable base and a second connecting portion which is provided on the table top to be connected to the first connecting portion.

4. The apparatus of claim 3 , wherein the first connecting portion comprises a hook, and
the second connecting portion comprises a groove configured to be fitted on the hook.

5. The apparatus of claim 3 , wherein the movable base moves horizontally along the central axis in the bore in conjunction with horizontal movement of the table top while the movable base is connected to the table top.

6. The apparatus of claim 3 , wherein the first connecting portion comprises a pivot shaft and a hook configured to rotate about the pivot shaft, and
the second connecting portion comprises a groove configured to be fitted to the hook when the hook is rotated about the pivot shaft to a horizontal position.

7. The apparatus of claim 6 , wherein the pivot shaft is above, in a vertical direction, an upper surface of the table top when the table top is in the position to be connected.

8. The apparatus of claim 1 , wherein the support body supports the reflecting plate so as to switch an angle of the reflecting plate between a horizontal angle and a vertical angle.

9. The apparatus of claim 1 , wherein the support body rotatably supports the reflecting plate at a position spaced apart from the movable base on an opposite side of the screen to the projector.

10. The apparatus of claim 1 , wherein the movable base includes at least one of a slide structure configured to slide the support body so as to be configured to move the reflecting plate toward or away from the screen and a link configured to make the support body pivot around a predetermined pivot shaft so as to move the reflecting plate toward or away from the screen.

11. The apparatus of claim 1 , wherein the movable base includes a wheel which rolls on a rail installed in the bore.

12. The apparatus of claim 1 , wherein the support body has a foldable structure.

13. The apparatus of claim 1 , wherein the movable base supports the screen at a vertical angle with respect to the movable base or a predetermined tilt angle with respect to a vertical angle.

14. The apparatus of claim 1 , wherein the screen has an outer diameter smaller than an inner diameter of the bore by 10 mm to 50 mm.

15. The apparatus of claim 1 , further comprising an imaging device provided on at least one of the screen, the reflecting plate, and the support body and configured to obtain an image of a person lying on the table top.

16. The apparatus of claim 15 , wherein the imaging device comprises
an objective lens provided on at least one of the screen, the reflecting plate, and the support body,
an optical waveguide configured to guide light from the objective lens, and
a photodetector provided outside the bore and configured to receive light from the optical waveguide.

17. The apparatus of claim 1 , further comprising a body motion information acquisition device that includes at least one of an optical camera, an optical sensor, an ultrasonic sensor, or an acceleration sensor, and is provided on at least one of the screen, the reflecting plate, and the support body and configured to acquire body motion information which changes in accordance with a motion of a person lying on the table top.

18. The apparatus of claim 1 , further comprising a vibrating membrane provided on at least one of the screen, the reflecting plate, and the support body and configured to transmit or receive a sound or transmit and receive a sound.

19. The apparatus of claim 1 , further comprising an image display device configured to project an image on an end portion of the bore on which the table top is arranged while the table top is arranged outside the bore.

20. The apparatus of claim 1 , wherein the screen is located so as to close the bore when the table top moves downward to be disconnected from the movable base.

21. A medical image diagnostic apparatus comprising:
a gantry including a bore and a mechanism for medical imaging;
a couch including a table top and a base, the base being configured to support the table top and move the table top relative to the gantry along a central axis of the bore and along a vertical direction;
a movable base which is structurally separated from the table top and connectable to the table top, and provided in the bore so as to move along the central axis of the bore;
a screen which is provided on the movable base and on which an image from a projector is projected;
a reflecting plate that reflects the image projected on the screen;
a support body provided on the movable base and that supports the reflecting plate; and
a connecting portion which connects between the table top and the movable base;
wherein the table top connects with the movable base and disconnects from the movable base, while the movable base is arranged at a couch side end portion of the gantry.

22. The apparatus of claim 21 , wherein the table top connects with the movable base and disconnects from the movable base, while the couch side end portion of the movable base is arranged at the couch side end portion of the gantry.

23. The apparatus of claim 21 wherein the apparatus is a magnetic resonance imaging apparatus.

Assignees

• Toshiba Medical Sys Corp
• Canon Medical Systems Corp

Inventors

• Ueda Yu
• Takamori Hiromitsu
• Sasaki Takashi
• Hotta Aira
• Murata Takahiro

Classifications

• A61B5/704

  Tables · CPC title

• A61B5/055 Primary

  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging · CPC title

• A61M21/02

  for inducing sleep or relaxation, e.g. by direct nerve stimulation, hypnosis, analgesia (for massage A61H; electrotherapy A61N, e.g. applying alternating or intermittent electric currents for producing anaesthesia A61N1/36021) · CPC title

• A61M2205/507

  Head Mounted Displays [HMD] · CPC title

• A61B5/7445 Primary

  Display arrangements, e.g. multiple display units · CPC title