Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Multi-modal imaging device combining photoacoustic and fiber-optic laser speckle

A multi-modal imaging and laser speckle technology, which is applied in medical science, sensors, catheters, etc., can solve problems such as no structural parameters, and achieve the effect of reducing measurement steps and time, and reducing size

Active Publication Date: 2019-09-20
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF2 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, although photoacoustic imaging and laser speckle imaging have been realized, due to the limitation of operating equipment, there is no multi-modal non-invasive method that can not only measure the structural parameters of tissues and cells in blood vessels, but also measure blood oxygen parameters. imaging device

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multi-modal imaging device combining photoacoustic and fiber-optic laser speckle
  • Multi-modal imaging device combining photoacoustic and fiber-optic laser speckle
  • Multi-modal imaging device combining photoacoustic and fiber-optic laser speckle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Such as figure 1 with figure 2 As shown, taking the experimental detection of mouse brain tissue as an example, the device of the present invention includes: a light source module 1 , a motor control module 2 , and a data acquisition module 3 .

[0025] The host computer 30 first controls the pulse laser 10 to set parameters such as the output power, pulse repetition frequency, and pulse width of the pulse laser. The trigger signal for acoustic signal acquisition; the other part of the laser light is transmitted to the dichroic mirror 13. The dichroic mirror can allow the 532nm laser to penetrate, but block the vertical reflection of the laser emitted by the 632.8nm He-Ne laser source 11, so as to realize the fusion of the two laser beams. The fused laser light is transmitted to the plane mirror 14 and sent to the motor control module 2 through the vertical reflection of the plane mirror.

[0026] The vertically reflected laser beam is expanded and diverged by the p...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Outer diameteraaaaaaaaaa
Outer diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a multi-modal imaging device combining photoacoustic and fiber-optic laser speckle, which comprises a light source module, a motor control module and a data acquisition module. The multi-modal imaging device has reasonable structure and simple structure, and realizes real-time synchronous simultaneous field detection of blood vessel structure, blood flow and blood oxygen, the combination of a high-resolution photoacoustic imaging technology and an endoscopic laser speckle imaging technology greatly reduces the measurement steps and time of different parameters, and provides a strong support for the clinical diagnosis and treatment of tumor and vascular diseases in the future.

Description

technical field [0001] The invention relates to the technical field of multimodal non-invasive imaging, in particular to a multimodal imaging device combining photoacoustic and fiber laser speckle. Background technique [0002] Photoacoustic imaging technology is a new type of non-invasive imaging technology that has developed rapidly in recent years. Based on the principle of photoacoustic effect, this technology is a non-invasive high-resolution imaging method that obtains two-dimensional tomography or three-dimensional stereoscopic tissue. The photoacoustic effect refers to the phenomenon that after an object is subjected to light with periodically changing intensity, it will expand with heat and contract with cold due to the periodic temperature change inside the object, thereby generating ultrasonic waves. Photoacoustic imaging technology combines the characteristics of optical imaging and acoustic imaging technology, and has the characteristics of high resolution, high...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A61B5/02A61B5/026A61B5/00
CPCA61B5/0035A61B5/0095A61B5/02028A61B5/0261
Inventor 李韪韬王康张欢冯宇赵月梅
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com