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Measuring apparatus

A measuring device and detector technology, which is applied in diagnostic recording/measurement, medical science, mammography, etc., can solve problems such as difficulty in using PAT and limitations in the amount of light in the living body, and achieve the effect of suppressing image degradation

Inactive Publication Date: 2013-09-18
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Also, there is a limit to the amount of light that can be applied to a living body
Therefore, it is difficult to perform imaging of deep regions in vivo using PAT

Method used

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Examples

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no. 1 example

[0070] First, a living body information imaging device according to a first embodiment of the present invention will be described.

[0071] Figure 5 is a diagram showing a configuration example of the living body information imaging device according to the first embodiment. The living body information imaging device according to the present embodiment is configured to be able to realize distribution of optical property values ​​in a living body, and substances forming body tissues obtained based on such information, for the diagnosis of tumors or vascular diseases, or the subsequent purposes thereof Imaging of the density distribution.

[0072] The living body information imaging device according to the present embodiment has holding units 51 and 52 for holding a living body 50 . The living body 50 held in this way is irradiated with irradiation light 53 .

[0073] The living body information imaging device also has a detector 57 . The detector 57 detects a photoacoustic ...

no. 2 example

[0101] A living body information imaging device according to a second embodiment of the present invention will be described.

[0102] Figure 6 is a diagram showing a configuration example of the living body information imaging device according to the present embodiment. and Figure 5 Those components common to the shown devices are denoted by the same reference numerals, and a detailed description thereof will be omitted.

[0103] The living body information imaging apparatus according to this second embodiment has holding units 60 and 61 for holding a living body 50 . The living body 50 held in this way is irradiated with irradiation light 53 .

[0104] The living body information imaging device also has a detector 57 . The detector 57 detects a photoacoustic wave 55 or a photoacoustic wave 56, which is generated by an optical absorber 54 (such as a tumor, a blood vessel, etc.) etc.), the photoacoustic wave 56 is generated at the surface of the living body.

[0105] Th...

no. 3 example

[0114] A living body information imaging device according to a third embodiment of the present invention will be described.

[0115] Figure 7 A configuration example of the living body information imaging device according to the present embodiment is shown. and Figure 5 Those components common to the shown devices are denoted by the same reference numerals, and a detailed description thereof will be omitted.

[0116] The living body information imaging device according to the present embodiment has holding units 70 and 71 for holding the living body 50 . The living body 50 held in this way is irradiated with irradiation light 53 .

[0117] The living body information imaging device also has a detector 57 that detects a photoacoustic wave 55 or a photoacoustic wave 56 and converts the detected photoacoustic wave into an electrical signal. Generated by a tumor, blood vessel, or such other optical absorber 54, the photoacoustic waves 56 are generated at the surface of the l...

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Abstract

A measuring apparatus has a holding unit for holding an object, and a probe including a receiving element for receiving through the holding unit an acoustic wave generated by the object irradiated with light. The light is applied to an object surface held by the holding unit. The probe is arranged such that a direction of a normal to the object surface held by the holding unit is nonparallel to a direction in which the receiving element exhibits its highest reception sensitivity.

Description

technical field [0001] The invention relates to measuring devices. Background technique [0002] In general, imaging devices using X-rays, ultrasonic waves, or MRI (Magnetic Resonance Imaging) are commonly used in the medical field. On the other hand, research has been actively conducted in the medical field for the purpose of realizing an optical imaging device designed to pass light emitted from a light source such as a laser beam on an object such as A living body (living body)) transmits and detects the transmitted light to obtain information in the living body. Photoacoustic Tomography (PAT) is proposed as one of such optical imaging techniques (NPL1: Non-Patent Document 1). [0003] According to the PAT technique, pulsed light generated by a light source is applied to a subject so that optical energy propagates and diffuses in the subject, and light generated by body tissue that absorbs the optical energy is detected at multiple sites in the body. Acoustic waves (he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00
CPCA61B5/0091A61B5/0095A61B5/00A61B5/708A61B5/72A61B5/742
Inventor 中嶌隆夫浅尾恭史
Owner CANON KK
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