Handheld photoacoustic imaging probe

A photoacoustic imaging, hand-held technology, applied in the directions of sonic diagnosis, infrasonic diagnosis, ultrasonic/sonic/infrasonic diagnosis, etc., can solve the problems of no longer applicable detection, high cost, unsatisfactory imaging effect, etc., and achieve the effect of easy adaptation

CN103393407BActive Publication Date: 2015-06-10SHENZHEN INST OF ADVANCED TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2015-06-10

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Abstract

The invention relates to the technical field of photoacoustic imaging, and provides a handheld photoacoustic imaging probe. Exciting light is coupled into an optical fiber (10); light emergent from the optical fiber (10) enters a coupling module (30) along a direction of one side, perpendicular to the surface of an object to be detected, of an ultrasonic probe (40) after being subjected to spatial beam expansion and focusing of a lens system (20); the light entering the coupling module (30) is totally reflected for the first time to be propagated parallelly to the surface of the object to be detected, and is totally reflected for the second time to be vertically irradiated on a detection area under the ultrasonic probe (40) to excite a photoacoustic signal; the photoacoustic signal enters the coupling module (30) via transmission of the ultrasonic probe detection area of the object to be detected, and the ultrasonic probe (40) receives the photoacoustic signal. On the premise of not increasing the size of the ultrasonic probe significantly, an exciting light irradiation area is coincident with the ultrasonic probe detection area; meanwhile, the ultrasonic probe is kept in a traditional direction of being perpendicular to the object to be detected to enable an operator to adapt easily.
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Description

Technical field

[0001] The invention relates to the technical field of photoacoustic imaging, in particular to a hand-held photoacoustic imaging probe.

Background technique

[0002] Optical imaging technology is one of the most rapidly developing branches of various biomedical imaging technologies. Compared with other medical imaging methods such as X-ray imaging, computed tomography, positron emission tomography, ultrasound imaging, magnetic resonance imaging, etc., optical imaging technology has one or more advantages in resolution, chemical specificity, sensitivity, safety, etc. Each has advantages. However, the biggest limitation of optical imaging technology lies in its tissue penetration depth, and the emergence of photoacoustic imaging technology has overcome this defect well. Photoacoustic imaging has the advantages of both optical resolution and acoustic imaging depth. It uses the optical absorption characteristics of tissues as a contrast mechanism to obtain ...

Examples

Embodiment Construction

[0052] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0053] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0054] The ultrasonic probe in this embodiment is a hand-held ultrasonic probe.

[0055] For the directions of up, down, left and right mentioned below, unless otherwise specified, please refer to the attached image 3 orientation shown.

[0056] Figure 3-Figure 8 In , the slash-filled areas represent rays.

[0057] Such as Figure 3-Figure 5 As shown, a schematic view of the stru...