X-ray diagnostic apparatus

Patent metadata

Field	Value
Publication number	US-10080537-B2
Application number	US-201715638969-A
Country	US
Kind code	B2
Filing date	Jun 30, 2017
Priority date	Mar 14, 2013
Publication date	Sep 25, 2018
Grant date	Sep 25, 2018

Abstract

According to one embodiment, an X-ray diagnostic apparatus includes a first arm, a second arm, a holding structure, an X-ray tube and an X-ray detector. The first arm rotates by a first rotating shaft and slides along a first arc-like slide axis relatively to the first rotating shaft. The second arm rotates by a second rotating shaft and slides along a second arc-like slide axis relatively to the second rotating shaft. The holding structure is connected with a first arm side and configured to hold the second arm. The X-ray tube and the X-ray detector are installed on the second arm.

First claim

What is claimed is:

1. An X-ray diagnostic apparatus comprising:
a first arm rotating around a first rotating axis and sliding along a first arc-like rail relatively to the first rotating axis, the first rotating axis being vertical;
a second arm rotating around a second rotating axis and sliding along a second arc-like rail relatively to the second rotating axis, the second rotating axis being fixed on the first arm;
a holding structure connected with a first arm side and configured to hold the second arm;
an X-ray tube and an X-ray detector installed on the second arm; and
circuitry configured to control the first arm and the second arm to move independently of each other.

2. The X-ray diagnostic apparatus of claim 1 , wherein the first arm is configured to slide along the first arc-like rail by a slide guide mechanism having a holding structure in which balls roll on the first arc-like rail.

3. The X-ray diagnostic apparatus of claim 1 , further comprising a rotating structure for rotating the second arm around the second rotating axis inclined by a movement of the first arm.

4. The X-ray diagnostic apparatus of claim 3 , further comprising processing circuitry configured to:
generate frames of X-ray image data based on X-ray detection data detected by the X-ray detector during a rotation of the second arm around the inclined second rotating axis, and
generate three dimensional image data based on the frames of the X-ray image data.

5. The X-ray diagnostic apparatus of claim 1 , wherein the first arm is attached to a ceiling, a wall surface, or a floor using a rotating shaft around the first rotating axis as a support post.

6. The X-ray diagnostic apparatus of claim 1 , wherein the first arm slides in a slide range along the first arc-like rail and the second arm slides in another slide range along the second arc-like rail, the slide range of the first arm being shorter than the slide range of the second arm.

7. The X-ray diagnostic apparatus of claim 2 , wherein the slide guide mechanism has a holding structure having balls rolling on each of bearing planes formed on four corners of the first arc-like rail.

8. The X-ray diagnostic apparatus of claim 2 , wherein the slide guide mechanism has a holding structure having circulating balls partially rolling on the first arc-like rail.

9. An X-ray diagnostic apparatus comprising:
a first arm rotating around a first rotating axis and sliding along a first arc-like rail relatively to the first rotating axis, the first rotating axis being vertical;
a second arm rotating around a second rotating axis and sliding along a second arc-like rail relatively to the second rotating axis, the second rotating axis being fixed on the first arm;
a holding structure connected with a first arm side and configured to hold the second arm;
an X-ray tube and an X-ray detector installed on the second arm;
a bed on which an object is placed; and
circuitry configured to control the first arm such that the second rotating axis is inclined in accordance with an inclined angle of the bed.

10. The X-ray diagnostic apparatus of claim 9 , wherein the first arm is configured to slide along the first arc-like rail by a slide guide mechanism having a holding structure in which balls roll on the first arc-like rail.

11. The X-ray diagnostic apparatus of claim 9 , further comprising a rotating structure for rotating the second arm around the second rotating axis inclined by a movement of the first arm.

12. The X-ray diagnostic apparatus of claim 11 , further comprising processing circuitry configured to:
generate frames of X-ray image data based on X-ray detection data detected by the X-ray detector during a rotation of the second arm around the inclined second rotating axis, and
generate three dimensional image data based on the frames of the X-ray image data.

13. The X-ray diagnostic apparatus of claim 9 , wherein the first arm is attached to a ceiling, a wall surface, or a floor using a rotating shaft around the first rotating axis as a support post.

14. The X-ray diagnostic apparatus of claim 9 , wherein the first arm slides in a slide range along the first arc-like rail and the second arm slides in another slide range along the second arc-like rail, the slide range of the first arm being shorter than the slide range of the second arm.

15. The X-ray diagnostic apparatus of claim 10 , wherein the slide guide mechanism has a holding structure having balls rolling on each of bearing planes formed on four corners of the first arc-like rail.

16. The X-ray diagnostic apparatus of claim 10 , wherein the slide guide mechanism has a holding structure having circulating balls partially rolling on the first arc-like rail.

Assignees

• Toshiba Medical Sys Corp

Inventors

• Noda Kouji

Classifications

• F16C19/502

  with rolling elements in rows not forming a full circle · CPC title

• A61B6/501

  for diagnosis of the head, e.g. neuroimaging or craniography · CPC title

• A61B6/0407

  Supports, e.g. tables or beds, for the body or parts of the body · CPC title

• A61B6/4447

  Tiltable gantries · CPC title

• A61B6/4476

  related to motor-assisted motion of the source unit · CPC title