Scanning acoustic tomograph

Patent metadata

Field	Value
Publication number	US-9395336-B2
Application number	US-201414261000-A
Country	US
Kind code	B2
Filing date	Apr 24, 2014
Priority date	Apr 25, 2013
Publication date	Jul 19, 2016
Grant date	Jul 19, 2016

Abstract

A scanning acoustic tomograph has a water tank which accommodates water, a sample stand which is disposed in the water tank and on which a subject is placed, a first ultrasonic transducer which irradiates ultrasonic waves toward the subject, and a second ultrasonic transducer which receives the ultrasonic waves transmitted through the subject, the first and second ultrasonic transducers are disposed opposed to each other in a vertical direction, and a hydrophilic film is formed on a lower surface side of the sample stand.

First claim

What is claimed is:

1. A scanning acoustic tomograph comprising:
a water tank which accommodates water;
a sample stand which is disposed in the water tank and on which a subject is placed; and
a first ultrasonic transducer which irradiates ultrasonic waves toward the subject and a second ultrasonic transducer which receives the ultrasonic waves transmitted through the subject, the first and second ultrasonic transducers disposed opposed to each other in a vertical direction,
wherein a hydrophilic film is formed on a lower surface side of the sample stand.

2. The scanning acoustic tomograph according to claim 1 ,
wherein an emission part which emits water toward the lower surface of the sample stand is provided.

3. The scanning acoustic tomograph according to claim 2 ,
wherein the emission part is configured to be movable with respect to the sample stand.

4. The scanning acoustic tomograph according to claim 3 ,
wherein a suction part which sucks a fluid present on the lower surface side of the sample stand is provided.

5. The scanning acoustic tomograph according to claim 4 ,
wherein the suction part is configured to be movable with respect to the sample stand in conjunction with the emission part.

6. The scanning acoustic tomograph according to claim 5 ,
wherein an examination area to which the sample stand is moved when the examination is performed is provided, and
wherein the first ultrasonic transducer irradiates ultrasonic waves toward the subject on the sample stand moved to the examination area.

7. The scanning acoustic tomograph according to claim 3 ,
wherein an examination area to which the sample stand is moved when the examination is performed is provided, and
wherein the first ultrasonic transducer irradiates ultrasonic waves toward the subject on the sample stand moved to the examination area.

8. The scanning acoustic tomograph according to claim 4 ,
wherein an examination area to which the sample stand is moved when the examination is performed is provided, and
wherein the first ultrasonic transducer irradiates ultrasonic waves toward the subject on the sample stand moved to the examination area.

9. The scanning acoustic tomograph according to claim 2 ,
wherein a suction part which sucks a fluid present on the lower surface side of the sample stand is provided.

10. The scanning acoustic tomograph according to claim 9 ,
wherein an examination area to which the sample stand is moved when the examination is performed is provided, and
wherein the first ultrasonic transducer irradiates ultrasonic waves toward the subject on the sample stand moved to the examination area.

11. The scanning acoustic tomograph according to claim 2 ,
wherein an examination area to which the sample stand is moved when the examination is performed is provided, and
wherein the first ultrasonic transducer irradiates ultrasonic waves toward the subject on the sample stand moved to the examination area.

12. The scanning acoustic tomograph according to claim 1 ,
wherein a suction part which sucks a fluid present on the lower surface side of the sample stand is provided.

13. The scanning acoustic tomograph according to claim 12 ,
wherein the suction part is configured to be movable with respect to the sample stand.

14. The scanning acoustic tomograph according to claim 13 ,
wherein a wiper which can be brought into contact with the lower surface of the sample stand is installed in the suction part.

15. The scanning acoustic tomograph according to claim 13 ,
wherein an examination area to which the sample stand is moved when the examination is performed is provided, and
wherein the first ultrasonic transducer irradiates ultrasonic waves toward the subject on the sample stand moved to the examination area.

16. The scanning acoustic tomograph according to claim 12 ,
wherein an examination area to which the sample stand is moved when the examination is performed is provided, and
wherein the first ultrasonic transducer irradiates ultrasonic waves toward the subject on the sample stand moved to the examination area.

17. The scanning acoustic tomograph according to claim 1 ,
wherein a wiper which is movable in contact with the lower surface of the sample stand is provided.

18. The scanning acoustic tomograph according to claim 17 ,
wherein an examination area to which the sample stand is moved when the examination is performed is provided, and
wherein the first ultrasonic transducer irradiates ultrasonic waves toward the subject on the sample stand moved to the examination area.

19. The scanning acoustic tomograph according to claim 1 ,
wherein an examination area to which the sample stand is moved when the examination is performed is provided, and
wherein the first ultrasonic transducer irradiates ultrasonic waves toward the subject on the sample stand moved to the examination area.

20. The scanning acoustic tomograph according to claim 19 ,
wherein a second emission part which emits water toward the subject before placing on the sample stand is provided.

Assignees

• Hitachi Power Solutions Co Ltd

Inventors

• Tomita Takashi
• Nagaoka Hirokazu
• Kitami Kaoru
• Takada Masafumi

Classifications

• G01N29/28

  providing acoustic coupling {, e.g. water (impedance matching G10K11/02)} · CPC title

• G01N29/11

  by measuring attenuation of acoustic waves · CPC title

• G01N29/265

  by moving the sensor relative to a stationary material · CPC title

• G01N2291/048

  Transmission, i.e. analysed material between transmitter and receiver · CPC title

• G01N29/0672 Primary

  by acoustic tomography (medical tomography A61B8/13) · CPC title