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Probe

a technology of probes and light guides, applied in the field of probes, can solve the problems of damage to the light guide plate, inability to easily remove the light emitting unit from the probe, and the gap between the housing and the light emitting unit may form, so as to achieve the effect of easy replacemen

Inactive Publication Date: 2015-11-19
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is a photo acoustic probe that can prevent damage to its light emitting unit and easily replace it if needed. The design allows for the easy replacement of the second light guide member without replacing the entire device. Additionally, it blocks the gap between the frame body and the first light guide member, which helps to improve the accuracy of the measurements.

Problems solved by technology

It is considered that the light incident surface of the light guide plate is damaged during the repetition of the emission of light when light is incident on the light guide plate from an optical fiber or the like and is emitted to a subject from the light guide plate.
Since the light guide plate (light emitting unit) is generally fixed to the tip of the probe by bonding or the like, the light emitting unit cannot be easily from the probe.
However, since the tip of the probe is not sealed in that case, a gap may be formed between a housing and the light emitting unit.

Method used

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Embodiment Construction

[0040]An embodiment of the invention will be described in detail below with reference to the drawings. FIG. 1 shows a photo acoustic measurement device (photo acoustic image generating device) including a probe according to an embodiment of the invention. The photo acoustic image generating device includes a probe 10, a light source unit 31, and an ultrasonic unit 32. The light source unit 31 is, for example, a laser unit that generates pulsed laser light. The ultrasonic unit 32 is a signal processing unit that processes signals detected by the probe 10.

[0041]The probe 10 includes light emitting units that emit light to a subject, and an acoustic wave detector that can detect at least acoustic waves from the subject. The probe 10 is connected to the light source unit 31 through optical wires 27 such as optical fibers. The optical wires 27 include, for example, a plurality of optical fibers. Light emitted from the light source unit 31 is guided to the probe 10 through the optical wir...

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Abstract

There is provided a photo acoustic probe which prevents foreign substances from entering and of which a portion of a light emitting unit to be easily damaged can be replaced. An acoustic wave detector 24 detects acoustic waves. First and second light guide members 21 and 23, which form the light emitting unit, are arranged in series in a traveling direction of light. A frame body 11 holds the first light guide members 21, the second light guide members 23, and the acoustic wave detector 24. The first light guide members 21, is positioned close to a subject, is undetachably fixed to the frame body 11. Meanwhile, the second light guide members 23, which is positioned close to a light source, is detachably fixed to the frame body 11.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a Continuation of PCT International Application No. PCT / JP2014 / 057256 filed on Mar. 18, 2014, which claims priority under 35 U.S.C §119 (a) to Japanese Patent Application No. 2013-063581 filed on Mar. 26, 2013 and Japanese Patent Application No. 2014-050315 filed on Mar. 13, 2014. Each of the above application(s) is hereby expressly incorporated by reference, in its entirety, into the present application.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a probe, and more particularly, to a probe that is used for the measurement of photo acoustic waves.[0004]2. Description of the Related Art[0005]An ultrasonic inspection method is known as one kind of image inspecting method that can inspect the internal state of a living body in a non-invasive manner. A probe, which can transmit and receive ultrasonic waves, is used for ultrasonic inspection. When ultrasonic waves are tran...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61B5/00G01H9/00
CPCG01H9/004A61B5/0095G01N29/22G01N29/24G01N29/2418G01N29/2462
Inventor IRISAWA, KAKU
Owner FUJIFILM CORP