Unlock instant, AI-driven research and patent intelligence for your innovation.

Tester for saturation level of cerebral blood oxygen

A technology of saturation and cerebral blood oxygen, which is applied in the direction of instruments, diagnostic recording/measurement, and instruments for radiological diagnosis, etc. It can accurately detect the oxygen saturation of brain tissue and other problems, and achieve the effect of eliminating the interference of background light, simple structure and low price

Inactive Publication Date: 2005-08-24
NANKAI UNIV
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the blood volume changes with the pulse, this instrument is called a pulse oximeter. It is only suitable for use on the fingertips and earlobes, and it will be powerless for the detection of cerebral blood oxygen, muscle blood oxygen and some local blood oxygen saturation. ; Another document with the publication number CN2362122Y discloses a reflective blood oxygen saturation monitor, the sensor of which uses two light-emitting diodes and a photodiode, which is a single-receiving structure, and it is specially used for monitoring cardiac surgery. The oxygen saturation of blood in the extracorporeal circulation system can not detect the oxygen saturation of brain tissue
In short, none of the above-mentioned instruments can detect the blood oxygen saturation of brain tissue non-invasively in vitro
The main problem is the inability to examine brain data non-invasively

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
  • Tester for saturation level of cerebral blood oxygen
  • Tester for saturation level of cerebral blood oxygen
  • Tester for saturation level of cerebral blood oxygen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The present invention will be further described below in conjunction with accompanying drawing:

[0021] figure 1 Among them, the sensor 2, the signal conditioner 3, the synchronous amplifier 4, the A / D converter 5, the single-chip microcomputer system 6 and the liquid crystal display and / or the micro-printer 8 are electrically connected in sequence. In addition, the single-chip microcomputer system 6 sends timing signals to control the signal conditioner and the synchronous amplifier.

[0022] figure 2 Among them, A1, A2 and A3 are 3 / 4LF444, A4 and A5 are LF442, transistors T1 and T2 are 8050 transistors, and silicon photocells 13 and 14 are 5×5 silicon photocells.

[0023] image 3 It is the structural diagram of the detection probe of the embodiment of the present invention, among the figure super bright light-emitting diode 11 and infrared light-emitting diode 12 are installed vertically close to each other, and silicon photocell 13,14 is housed on its contact 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

No PUM Login to View More

Abstract

A detector for detecting the saturation level of cerebral blood oxygen is composed of probe, synchronous amplifier, A / D converter, single-chip computer system, and display. It features that two LEDs generating different wavelengthes and two light receivers with two photoelectric silicon cells are installed in its probe. The obtained data contains two parts: one is the information about superficial tissue and another is the information about superficial tissue and cerebral blood oxygen. Subtracting one part from another can obtain the information about cerebral blood oxygen. Its advantages include simple structure, high sensitivity and reliability, and low cost.

Description

technical field [0001] The name of the present invention is a cerebral blood oxygen saturation detector, which is a non-invasive, reflective, double-beam and double-receiving detector, and belongs to the technical field of medical devices. technical background [0002] At present, almost all clinical oximeters at home and abroad use a finger-clip sensor composed of a light-emitting diode and a photosensitive element, and use the transmission detection principle to detect the blood oxygen saturation of the fingertip or earlobe blood. Because the blood volume changes with the pulse, this instrument is called a pulse oximeter. It is only suitable for use on the fingertips and earlobes, and it will be powerless for the detection of cerebral blood oxygen, muscle blood oxygen and some local blood oxygen saturation. ; Another document with the publication number CN2362122Y discloses a reflective blood oxygen saturation monitor, the sensor of which uses two light-emitting diodes and...

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
Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/00A61B6/00G01N21/31G06F17/00
Inventor 乔月印仇伟红乔峰乔岭梅
Owner NANKAI UNIV