Device and method for detecting absolute amount of blood oxygen and blood volume of local brain tissue

A detection device and brain tissue technology, which is applied in the field of biomedical engineering, can solve the problems of inability to achieve absolute measurement, high cost, and inability to perform absolute measurement.

Inactive Publication Date: 2014-04-23
UNIV OF ELECTRONIC SCI & TECH OF CHINA
View PDF7 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the technical invention patents for detecting oxygen in human tissue using near-infrared spectroscopy, the invention patent ZL200310113534.7 proposes a method for detecting oxygen saturation in local brain tissue of newborns stimulated by oxygen inhalation. The relative measurement of blood oxygen saturation changes under oxygen stimulation cannot be measured in absolute quantities, so it cannot reflect the difference between patients and normal people, or the difference between lesion areas and normal areas
Invention patent ZL200610112598.9 prov

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
  • Device and method for detecting absolute amount of blood oxygen and blood volume of local brain tissue
  • Device and method for detecting absolute amount of blood oxygen and blood volume of local brain tissue
  • Device and method for detecting absolute amount of blood oxygen and blood volume of local brain tissue

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] Such as figure 1 , the device of the present invention includes an optical probe that can emit infrared light to the surface of the local brain tissue to be measured and detect the light intensity reflected from the surface of the local brain tissue to be measured, and a controller that controls the optical probe to emit and obtain optical signals ; The controller is connected to the PC through the data acquisition module.

[0056] exist image 3 1 is the light source os (an LED that can emit at least three wavelengths of near-infrared light); 2 is the distance from the light source is ρ 1 The photosensitive detector p1; 3 is the distance ρ from the light source 2 The photosensitive detector p2 (two photosensitive detectors like 2 and 3 form a pair of photosensitive detector channels); 4 is the first layer of tissue, and is represented by T1; 5 is the second layer of tissue, and is represented by T2; 6 It is the third layer of organization and is represented by T3. ...

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

No PUM Login to view more

Abstract

The invention discloses a device and a method for detecting the absolute amount of the blood oxygen and the blood volume of local brain tissue. The device comprises an optical probe and a controller; the optical probe is used for emitting the near-infrared light to the surface of the local brain tissue to be detected and detecting the light intensity which is reflected from the surface of the local brain tissue to be detected; the controller is used for controlling the emission of the optical probe and obtaining optical signals. According to the device and the method for detecting the absolute amount of the blood oxygen and the blood volume of the local brain tissue, a multi-wavelength light source is selected, continuous waves are utilized, and accordingly the price is low, the signals are stable, the method is easy to implement, and the rapid popularization can be achieved; a common photosensitive detector is adopted and accordingly the high measurement sensitivity is ensured and the portability of the instrument is greatly improved; an absolute value of the blood oxygen and blood volume amount of the local brain tissue can be detected noninvasively, timely, rapidly and accurately and accordingly the differences between the lesion area and the normal area or the differences between patients and normal persons can be accurately reflected.

Description

technical field [0001] The invention relates to the technical field of biomedical engineering, in particular to a detection device and a detection method for the absolute amount of blood oxygen and blood volume in local brain tissue. Background technique [0002] Measuring the concentration of blood oxygen saturation in brain tissue and observing its change over time will help to understand the absolute value concentration of blood oxygen saturation in brain tissue in patients with brain diseases and patients during surgery, and provide a basis for doctors' diagnosis . [0003] Compared with widely used medical detection techniques: magnetic resonance imaging (fMRI), positron emission tomography (PET), electroencephalography / time-related potential (EEG / ERP), emerging near-infrared brain function spectroscopy or imaging (NIRS / fNIRI) has the advantages of portability, low cost, high temporal resolution, and non-invasive detection. As a non-invasive optical monitoring method...

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): A61B5/1455
Inventor 李婷赵越李凯孙云龙
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap