Method and device for accurately measuring blood oxygen saturation based on photoacoustic technology

An accurate measurement and saturation technology, applied in the field of medical measurement, can solve the problems of measuring venous blood oxygen saturation concentration, unfavorable patients, and unspecified measurement uncertainty, and achieve the effect of preventing life-threatening

Pending Publication Date: 2020-11-20
INNO LASER TECH CORP LTD
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most instruments do not specify the measurement uncertainty when the blood oxygen saturation is lower than 70%. Therefore, it is impossible to measure the venous blood oxygen saturation concentration by this conventional method. The detection of venous blood saturation concent

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
  • Method and device for accurately measuring blood oxygen saturation based on photoacoustic technology
  • Method and device for accurately measuring blood oxygen saturation based on photoacoustic technology
  • Method and device for accurately measuring blood oxygen saturation based on photoacoustic technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0037] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or Presence or addition of multiple other features, integers, steps, operations, elements, components and / or collections thereof.

[0038]It should also be understood that the terminology used i...

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
Pulse widthaaaaaaaaaa
Wavelengthaaaaaaaaaa
Login to view more

Abstract

The present invention discloses a method and a device for accurately measuring blood oxygen saturation based on a photoacoustic technology. The method comprises the following steps: exciting light source to emit two beams of light with different specific wavelengths, irradiating surfaces of tissues to be measured through an optical system, also conducting penetration into the tissues to enable oxygenated hemoglobin and reduced hemoglobin in the tissues to be measured to absorb the light beams to generate ultrasonic signals, collecting ultrasonic signals by using an ultrasonic signal acquisition module and measuring the ultrasonic signals, processing the ultrasonic signals by using an ultrasonic signal processing module, acquiring relative concentration of the oxygenated hemoglobin and reduced hemoglobin in blood by an image reconstruction algorithm and calculating absolute value of blood oxygen saturation of the blood of the tissues to be measured based on the relative value of the relative concentration. The provided measurement method has higher measurement accuracy than the existing blood oxygen saturation measuring instrument technology and at the same time solves a technical problem that the existing blood oxygen instrument cannot measure the blood oxygen saturation in venous blood vessels.

Description

technical field [0001] The invention relates to the technical field of medical measurement, in particular to a method and equipment for accurately measuring blood oxygen saturation based on photoacoustic technology. Background technique [0002] Oxygen in the human body is mainly provided by the reversible combination of oxyhemoglobin and reduced hemoglobin in the blood with oxygen. Usually, the volume of oxygenated hemoglobin in the blood accounts for the percentage of all oxygenable and hemoglobin volumes, that is, the concentration of oxygen in the blood, which is expressed as blood oxygen saturation. It is an important indicator reflecting the oxygen supply status in the human body and is also a clinical One of the basic monitoring parameters in medical treatment. The higher the oxygen content in the blood, the better a person's metabolism, and if it is too low, the body's oxygen supply will be insufficient. The blood oxygen saturation of normal human arterial blood is...

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): A61B5/1455A61B5/00A63B71/06
CPCA61B5/0095A61B5/14542A61B5/14551A61B2503/10A63B71/06A63B2230/207
Inventor 赵晓杰欧志龙邹然
Owner INNO LASER TECH CORP LTD
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