CN211432934U - Blood oxygen saturation detection system - Google Patents
Blood oxygen saturation detection system Download PDFInfo
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- CN211432934U CN211432934U CN201921313775.9U CN201921313775U CN211432934U CN 211432934 U CN211432934 U CN 211432934U CN 201921313775 U CN201921313775 U CN 201921313775U CN 211432934 U CN211432934 U CN 211432934U
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- oxygen saturation
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Abstract
The utility model discloses a blood oxygen saturation detection system, it can realize the real-time detection of blood oxygen saturation through data acquisition module, singlechip and zigBee communication module etc. moreover, its data processing module adopts multichannel data fusion method to handle the data that the singlechip received, can reduce the interference of unusual noise point, has improved detection accuracy; in addition, the single chip microcomputer transmits the processing result to the ECMO host computer in time through the ZigBee communication module, so that the blood oxygen saturation detection system has good expansibility and adaptability, low cost and long transmission distance.
Description
Technical Field
The utility model relates to a medical instrument detects technical field, especially relates to an oxyhemoglobin saturation detecting system.
Background
In order to ensure the safety of extracorporeal circulation surgery patients, various physiological indexes of the patients must be detected in real time, wherein Mixed Venous Oxygen Saturation (SvO 2) can dynamically reflect the change of Oxygen supply and Oxygen consumption balance, and is an important physiological index in extracorporeal perfusion, so that the real-time detection of SvO2 in the process of extracorporeal perfusion is necessary.
Currently, the clinical detection method for SvO2 mainly comprises the following three methods: (1) blood gas analysis is performed by placing a Swan-Gans catheter and directly taking blood from the pulmonary artery end or the right atrium, however, in the method, the catheter is directly contacted with the blood, so that the infection is easily caused, and other physiological parameters in the extracorporeal perfusion process can be influenced; (2) inserting a floating catheter with a detection probe into pulmonary artery, and realizing continuous blood oxygen detection through an optical fiber pulmonary artery catheter, a photoelectric converter and the like, wherein the detection of the method needs a certain time and cannot be detected in real time; (3) the dual-wavelength detection instrument is used for detecting the blood oxygen saturation by adopting a light reflection technology, light is reflected back through the wall of the disposable sterile detection tube and is transmitted to the instrument through optical fibers to perform signal conversion processing and calculate the blood oxygen saturation, and the instrument is expensive, large in size, complex in operation and slow in response speed, and is in wired transmission through the optical fibers.
SUMMERY OF THE UTILITY MODEL
In order to overcome the deficiency of the prior art, the utility model provides a technical problem who solves provides a blood oxygen saturation detecting system, and it is not only easy and simple to handle, but also can the blood oxygen saturation among the real-time detection perfusion process.
In order to solve the above technical problem, the utility model discloses the technical scheme content that adopts specifically as follows:
the utility model provides an oxyhemoglobin saturation detecting system, includes data acquisition module, singlechip and zigBee communication module, the singlechip is used for control data acquisition module carries out data information acquisition and right the data information that data acquisition module gathered is handled, and the singlechip passes through zigBee communication module transmits the processing result to the ECMO host computer.
Further, the data acquisition module is a blood oxygen saturation sensor.
Furthermore, the single chip microcomputer is provided with a data processing unit, and the data processing unit is used for carrying out multi-channel data fusion processing on the received data information.
Preferably, the single chip microcomputer is an STM32 controller.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses an oxyhemoglobin saturation detecting system can realize oxyhemoglobin saturation's real-time detection through data acquisition module, singlechip and zigBee communication module etc. moreover, its data processing module adopts multichannel data fusion method right singlechip received data are handled, can reduce the interference of unusual noise point, have improved the detection precision, moreover, the singlechip passes through zigBee communication module in time transmits the ECMO host computer with the handling result, makes oxyhemoglobin saturation detecting system has good expansibility and adaptability, and is with low costs, and transmission distance is far away moreover.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a blood oxygen saturation detection system according to the present invention;
wherein the reference numerals in fig. 1 are:
1. a data acquisition module; 2. a single chip microcomputer; 3. a ZigBee communication module; 4. a data processing unit.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description is given to the embodiments, structures, features and effects according to the present invention with reference to the accompanying drawings and preferred embodiments as follows:
fig. 1 is oxyhemoglobin saturation detecting system, it includes data acquisition module 1, singlechip 2 and zigBee communication module 3, singlechip 2 is used for control data acquisition module 1 carries out data information acquisition and right the data information that data acquisition module 1 gathered is handled, and singlechip 2 passes through zigBee communication module 3 will handle the result and transmit to the ECMO host computer, thereby pass through data acquisition module 1 singlechip 2 and zigBee communication module 3 just can realize oxyhemoglobin saturation's real-time detection.
In this embodiment, the data acquisition module 1 is a blood oxygen saturation sensor, and the single chip microcomputer is provided with a data processing unit for performing multi-channel data fusion processing on the received data information.
According to the lambert-beer law, there is a linear relationship between the blood oxygen saturation SvO2 and the light intensity ratio of infrared light and red light, namely:
SvO2＝A-B(IIR/IRED)＝A-B*I
wherein: a and B are constants which can be obtained by calibration experiments; i isIRIndicating the intensity of the light reflected by the blood, IREDIndicating the intensity of the red light reflected back through the blood, and I indicates the intensity ratio of the infrared light to the red light reflected.
The blood oxygen saturation sensor can alternately emit red light with the wavelength of 660nm and infrared light with the wavelength of 960nm, when the blood oxygen saturation sensor works specifically, the red light and the infrared light pass through the blood in the optical fiber detection pipeline, a part of light is absorbed, a part of light is reflected, the reflected light is received by the four photoelectric detectors, and the values of the light intensity received by the four photoelectric detectors are respectively measured by ICH1，ICH2，ICH3，ICH4Is shown byCH1，ICH2，ICH3，ICH4Independent from each other, the data processing unit 4 processes and fuses the data by using the channel data fusion processing, so as to obtain the reflected light intensity ratio I of red light and infrared light, and the blood oxygen saturation SvO2 can be obtained by substituting the formula.
In the utility model discloses in, the singlechip is STM32 controller.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (4)
1. A system for detecting blood oxygen saturation is characterized in that: the single chip microcomputer is used for controlling the data acquisition module to acquire data information and process the data information acquired by the data acquisition module, and the single chip microcomputer transmits a processing result to the ECMO host through the ZigBee communication module.
2. The system of claim 1, wherein: the data acquisition module is a blood oxygen saturation sensor.
3. The system of claim 1, wherein: the single chip microcomputer is provided with a data processing unit, and the data processing unit is used for carrying out multi-channel data fusion processing on the received data information.
4. The system of any one of claims 1-3, wherein: the single chip microcomputer is an STM32 controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921313775.9U CN211432934U (en) | 2019-08-13 | 2019-08-13 | Blood oxygen saturation detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921313775.9U CN211432934U (en) | 2019-08-13 | 2019-08-13 | Blood oxygen saturation detection system |
Publications (1)
| Publication Number | Publication Date |
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| CN211432934U true CN211432934U (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921313775.9U Active CN211432934U (en) | 2019-08-13 | 2019-08-13 | Blood oxygen saturation detection system |
Country Status (1)
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| CN (1) | CN211432934U (en) |
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2019
- 2019-08-13 CN CN201921313775.9U patent/CN211432934U/en active Active
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