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Optical-fibre multi-channel living body functional imaging detection system and its equipment

A technology of functional imaging and detection system, which is applied in measurement devices, material analysis by optical means, instruments, etc., can solve the problem that the device cannot perform dynamic functional imaging, etc., and achieves easy optical power requirements, increased number, and adjustable resolution. Effect

Inactive Publication Date: 2003-02-05
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the device cannot be used for dynamic functional imaging

Method used

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  • Optical-fibre multi-channel living body functional imaging detection system and its equipment
  • Optical-fibre multi-channel living body functional imaging detection system and its equipment
  • Optical-fibre multi-channel living body functional imaging detection system and its equipment

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Embodiment Construction

[0030] The structure and working principle of the present invention will be further described below in conjunction with the embodiment and accompanying drawings of using two light source optical fiber groups:

[0031] As shown in Figure 2, the light source 1 is transmitted through the light source optical fiber group 2, and the rotating device 13 drives the modulation disc 10 to rotate, and the light transmitted from the optical fiber group 2 is chopped into discontinuous light of different frequencies, and the optical filter group 17, 17 'Filtered into light of a certain wavelength; the output end of the multi-input and one-out optical fiber 16 is driven by the rotating device 13, and the optical fiber group 23 is scanned in turn, so that each point in the tissue space to be detected is irradiated in sequence, and the detection head 4 is detecting the head It is made into a helmet shape and fixed on the head during detection. The second optical fiber group 26 transmits the de...

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Abstract

The optical fibre multi-channel organism function imaging detection system and its equipment for bio-medicine scientific research and clinical detection are characterized by that it is formed from light source, light source optical fibre group, light source modulating and transmission distributions system, detection probe, signal detection system, lock-in amplification system and computer analysis and processing system which are connected in turn. After the signal of signal detection system and frequency detection device is phase-locked and amplified the image representing change of specific components of tissue can be obtained. Said invention features strong anti-interference property, adjustable image resolution, adjustable imaging space range and low cost, etc..

Description

Technical field: [0001] The invention belongs to biomedical optical scientific research and clinical testing instruments. Background technique: [0002] There has been a need for a long time, that is, how to detect changes in specific components (such as blood oxygen content and blood volume) in tissues, so as to achieve the purpose of functional imaging of tissues. [0003] There are tissue functional optical imaging technologies for biological tissue detection at home and abroad. The light source uses multiple lasers, and the detection part uses multiple high-sensitivity photodetectors. However, this technology is immature and the cost is extremely high. Moreover, it is difficult to eliminate the interference of external background light, the resolution of imaging is difficult to adjust, and the system is not easy to expand. [0004] In clinical practice, there are many methods for estimating blood oxygen content, the most commonly used method is to take arterial blood an...

Claims

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Application Information

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IPC IPC(8): G01N21/17
Inventor 骆清铭曾绍群余江胜
Owner HUAZHONG UNIV OF SCI & TECH
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