CN103323506A - Partial pressure of carbon dioxide (PCO2) data acquisition and processing method for blood gas analyzer - Google Patents
Partial pressure of carbon dioxide (PCO2) data acquisition and processing method for blood gas analyzer Download PDFInfo
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- CN103323506A CN103323506A CN2013102414825A CN201310241482A CN103323506A CN 103323506 A CN103323506 A CN 103323506A CN 2013102414825 A CN2013102414825 A CN 2013102414825A CN 201310241482 A CN201310241482 A CN 201310241482A CN 103323506 A CN103323506 A CN 103323506A
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Abstract
The invention provides a partial pressure of carbon dioxide (PCO2) data acquisition and processing method for a blood gas analyzer. A PCO2 determination result is measured in the following steps: continuously collecting PCO2 data at the same time interval, determining a base point value, selecting PCO2 data, calculating the PCO2 data and the like. The method has simple steps and accurate determination result.
Description
Technical field
The invention belongs to medical instruments field, particularly a kind of PCO2 data acquisition and disposal route of blood gas analyzer.
Background technology
Under physiological condition, comprise oxygen, nitrogen and carbon dioxide in the blood, also have in addition micro-argon gas, carbon monoxide and rare gas, but participate in gas exchange in the lung, that finishes the physiology of respiration function only has oxygen and carbon dioxide.Gas is kept the gas exchange of capillary and tissue in the blood by internal respiration and external respiration, keeps the acid base equilibrium of body.Blood gas analysis is to be usually used in medically judging whether body exists acid-base imbalance and anoxic and degree of oxygen deficiency etc.This shows, particularly important for gas analysis in the blood.
The instrument of mensuration vim and vigour mainly measures respectively O2, CO2 by special gas sensing electrode and three data of pH are measurement result.Wherein, the PCO2 electrode belongs to the CO2 gas sensing electrode, mainly is comprised of specific glass electrode and Ag/AgCl contrast electrode and electrode buffer.Principle and pH electrode are basic identical, and just pH electrode outside also has one deck teflon or silicone rubber membrane, and CO2 freely sees through, other ions can not see through, contain electrolytic solution between this film and pH electrode, the change of PCO2 can affect the pH of electrolytic solution, and logarithm and the pH of PCO2 are in linear relation.Then, PCO2 data acquisition and the disposal route accuracy of existing blood gas analyzer are lower, are difficult to meet the requirement that existing medically PCO2 detects.
Summary of the invention
Goal of the invention: the purpose of this invention is to provide a kind of result accurately PCO2 data acquisition and the disposal route of blood gas analyzer.
Technical scheme: PCO2 data acquisition and the disposal route of a kind of blood gas analyzer provided by the invention may further comprise the steps:
Step 1, the same Time Continuous in interval gathers the PCO2 data, gets one group PCO2 data, is respectively t
1, t
2, t
3T
n
Step 2, the basic point value is determined: t
1As initial basic point value,
If, | t
n-t
N-1|≤a, then t
N-1Be the basic point value;
If, | t
n-t
N-1|＞a, then t
nBe the basic point value;
Step 3, PCO2 data selection: calculate continuously by the step 2 method, get the one group of PCO2 data that satisfy following requirement: t
mBe the basic point value, and should organize in the PCO2 data | t
M+l-t
M+l-1|≤a all sets up;
Step 4, the calculating of PCO2 data: one group of PCO2 data that step 3 is selected are averaged, be the PCO2 measurement result.
As preferably, in the step 1, be the 500-700 millisecond interval time.
As preferably, in the step 2, a is 2-4.
Preferred as another kind, in the step 3, the quantity of this group PCO2 data of selection is 5-7.
Beneficial effect: the PCO2 data acquisition of blood gas analyzer provided by the invention and process method step is simple, measurement result is accurate.
Description of drawings
Fig. 1 is PCO2 data acquisition and the process flow figure of blood gas analyzer of the present invention.
Embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is made and to further specify.
PCO2 data acquisition and the disposal route of blood gas analyzer may further comprise the steps:
Step 1 utilizes the same Time Continuous in ADC (Analog-to-Digital Converter) device interval to gather the PCO2 data, gets one group PCO2 data, is respectively t
1, t
2, t
3T
nAmong the present invention, be 600 milliseconds interval time, also can rationally be set as required interval time, preferred 500-700 millisecond;
Step 2, the basic point value is determined: t
1As initial basic point value,
If, | t
n-t
N-1|≤a, then t
N-1Be the basic point value;
If, | t
n-t
N-1|＞a, then t
nBe the basic point value;
A is set as 3, alternatively, also can rationally arrange as required, preferred 2-4;
Step 3, PCO2 data selection: calculate continuously by the step 2 method, get the one group of PCO2 data that satisfy following requirement: t
mBe the basic point value, and should organize in the PCO2 data | t
M+l-t
M+l-1|≤a all sets up; Among the present invention, the quantity of this group PCO2 data is got 6, also its quantity of choose reasonable as required, preferred 5-7;
Step 4, the calculating of PCO2 data: one group of PCO2 data that step 3 is selected are averaged, be the PCO2 measurement result.
Utilize said method to measure the PCO2 data of a batch sample, its accuracy, precision are respectively:
When measured value during at 6.67-26.67kPa, accuracy B is less than or equal to 1.5%, and precision (CV) is less than or equal to 0.8%.
Claims (4)
1. PCO2 data acquisition and the disposal route of a blood gas analyzer is characterized in that: may further comprise the steps:
Step 1, the same Time Continuous in interval gathers the PCO2 data, gets one group PCO2 data, is respectively t
1, t
2, t
3T
n
Step 2, the basic point value is determined: t
1As initial basic point value,
If, | t
n-t
N-1|≤a, then t
N-1Be the basic point value;
If, | t
n-t
N-1|＞a, then t
nBe the basic point value;
Wherein, a is setting value;
Step 3, PCO2 data selection: calculate continuously by the step 2 method, get the one group of PCO2 data that satisfy following requirement: t
mBe the basic point value, and should organize in the PCO2 data | t
M+l-t
M+l-1|≤a all sets up;
Step 4, the calculating of PCO2 data: one group of PCO2 data that step 3 is selected are averaged, be the PCO2 measurement result.
2. PCO2 data acquisition and the disposal route of a kind of blood gas analyzer according to claim 1, it is characterized in that: in the step 1, be the 500-700 millisecond interval time.
3. PCO2 data acquisition and the disposal route of a kind of blood gas analyzer according to claim 1, it is characterized in that: in the step 2, a is 2-4.
4. PCO2 data acquisition and the disposal route of a kind of blood gas analyzer according to claim 1 is characterized in that: in the step 3, the quantity of this group PCO2 data of selection is 5-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102414825A CN103323506A (en) | 2013-06-18 | 2013-06-18 | Partial pressure of carbon dioxide (PCO2) data acquisition and processing method for blood gas analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102414825A CN103323506A (en) | 2013-06-18 | 2013-06-18 | Partial pressure of carbon dioxide (PCO2) data acquisition and processing method for blood gas analyzer |
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| Publication Number | Publication Date |
|---|---|
| CN103323506A true CN103323506A (en) | 2013-09-25 |
Family
ID=49192386
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102414825A Pending CN103323506A (en) | 2013-06-18 | 2013-06-18 | Partial pressure of carbon dioxide (PCO2) data acquisition and processing method for blood gas analyzer |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1864629A (en) * | 2006-05-26 | 2006-11-22 | 清华大学 | Method for calibrating tissue oxygen detection device by use of blood gas analyzer |
| CN101363808A (en) * | 2008-09-12 | 2009-02-11 | 华中科技大学 | Tester for stability of gas sensor and array |
| CN101398676A (en) * | 2008-09-22 | 2009-04-01 | 东莞市步步高家用电器有限公司 | Control method for detecting liquid boiling of electronic device |
| CN101501483A (en) * | 2006-08-02 | 2009-08-05 | 奥林巴斯株式会社 | Electrolyte analyzer and its measured data processing method |
-
2013
- 2013-06-18 CN CN2013102414825A patent/CN103323506A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1864629A (en) * | 2006-05-26 | 2006-11-22 | 清华大学 | Method for calibrating tissue oxygen detection device by use of blood gas analyzer |
| CN101501483A (en) * | 2006-08-02 | 2009-08-05 | 奥林巴斯株式会社 | Electrolyte analyzer and its measured data processing method |
| CN101363808A (en) * | 2008-09-12 | 2009-02-11 | 华中科技大学 | Tester for stability of gas sensor and array |
| CN101398676A (en) * | 2008-09-22 | 2009-04-01 | 东莞市步步高家用电器有限公司 | Control method for detecting liquid boiling of electronic device |
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Application publication date: 20130925 |