CN2300911Y - Electrolyte analyzer for clinical diagnosis - Google Patents
Electrolyte analyzer for clinical diagnosis Download PDFInfo
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- CN2300911Y CN2300911Y CN97240143U CN97240143U CN2300911Y CN 2300911 Y CN2300911 Y CN 2300911Y CN 97240143 U CN97240143 U CN 97240143U CN 97240143 U CN97240143 U CN 97240143U CN 2300911 Y CN2300911 Y CN 2300911Y
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- standard solution
- solenoid valve
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Abstract
The utility model relates to an electrolyte analyzer for clinical diagnosis, which can measure parameters in blood, such as kalium, natrium, chlorine, calcium, carbon dioxide combining power. The measurement of kalium, natrium, chlorine and calcium adopts an ion selective electrode method; the measurement of the carbon dioxide combining power adopts a pressure measuring method. The utility model comprises containers 1, 2, 3 of standard solution A, B, C, a sample container 4, five-way sampling valve 5, three-way magnetic valve 6, an ion selective electrode combination 7, a peristaltic pump 8, two-way solenoid valve 9, a pressure sensor 10, a reactor 12, a waste liquid bottle 13, a reaction liquor container 14 and a rotation disk 15. The utility model has the advantages of convenient operation, high analyzing speed, few sample dosage and high measuring result accuracy.
Description
The utility model relates to medical inspection instrument and microelectric technique, more particularly, relates to a kind of clinical blomelicalbloodgasandelectrolrteanalyzers that is used for blood potassium, sodium, chlorine, calcium, carbon dioxide combining power are carried out quantitative test.
Potassium (K
+), sodium (Na
+), chlorine (Cl
-), calcium (Ca
++), carbon dioxide combining power (HCO3
-) be the electrolytical principal ingredient of blood of human body.Potassium, sodium, calcium are main kation, and chlorine, carbon dioxide combining power are main negative ion.Obtain the content of potassium, sodium, chlorine, calcium, carbon dioxide combining power in patient's blood, find out in the blood whether balance of yin, yang ion thus, the clinician is diagnosed the illness and implements to perform the operation most important.
At present, the method for potassium, sodium, chlorine, calcium ion in the state-of-the-art measurement blood, available blomelicalbloodgasandelectrolrteanalyzers based on ion selective electrode method is measured simultaneously, but the measurement of carbon dioxide combining power is carried out acid base titration mostly by hand and is measured.The method of manual acid base titration has measurement result poor accuracy (because titration end-point depends on the judgement of human eye to color), and the standard reagent that titration is used is polluted by carbon dioxide in air and defective such as rotten easily.Adopt present method measurement potassium, sodium, chlorine, calcium, carbon dioxide combining power to carry out at twice, measure potassium, sodium, chlorine, calcium with clinical blomelicalbloodgasandelectrolrteanalyzers, method is measured carbon dioxide combining power by hand, complex operation like this, analysis time is long, amount of samples is big, the poor accuracy of the measurement result of carbon dioxide combining power.
The purpose of this utility model is to provide a kind of automatic analyzer that can measure potassium in the blood, sodium, chlorine, calcium, five kinds of parameters of carbon dioxide combining power simultaneously, this instrument can overcome the shortcoming of prior art, have easy and simple to handle, analysis speed is fast, amount of samples is few, the characteristics that the accuracy of the measurement result of carbon dioxide combining power is higher.The mensuration of potassium, sodium, chlorine, calcium adopts ion selective electrode method in this instrument, and the mensuration of carbon dioxide combining power adopts the piezometric method.
The technical problems to be solved in the utility model comprises following two aspects: 1. be added to sample, reactant liquor in the container automatically, variation with electronic pressure transmitter measuring vessel internal pressure, automatically calculate the content of carbon dioxide combining power by microcomputer, realize that carbon dioxide combining power measured to instrument automatically by hand dipping.2. measure the ion selective electrode method liquid flow path of potassium, sodium, chlorine, calcium and being connected of the piezometric method liquid flow path of measuring carbon dioxide combining power, realize only needing sample introduction once, can measure potassium, sodium, chlorine, calcium, five kinds of parameters of carbon dioxide combining power, to reach easy to operate, amount of samples is few, the purpose that analysis speed is fast.
The purpose of this utility model is to realize like this, constructing a kind of clinical blomelicalbloodgasandelectrolrteanalyzers comprises: five-way sampling valve 5, by connecting pipe respectively with the container 1 of splendid attire standard solution A, the container 2 of splendid attire standard solution B, the container 3 of splendid attire standard solution S, the container 4 of splendid attire sample, the a end of three-way solenoid valve 6 communicates, also comprise ion-selective electrode combination 7, the two ends of described ion-selective electrode combination 7 connect the b end of peristaltic pump 8 and three-way solenoid valve 6 respectively, peristaltic pump 8 other ends lead to waste fluid container 14, the c end of described three-way solenoid valve 6 is connected to reactor 12, two three-way electromagnetic valves 9 in addition that communicate with reactor 12, electronic pressure transmitter 10 and peristaltic pump 11, the other end of peristaltic pump 11 leads to the reactant liquor container of carbon dioxide combining power, also comprise a rotating disc 15, described reactor 12 is placed in the pallet of rotating disc 15.
Provide a kind of clinical blomelicalbloodgasandelectrolrteanalyzers according to the utility model, it is characterized in that: the structure of described five-way sampling valve 5 is made up of valve body and spool, valve body is the right cylinder of intermediate hollow, 4 sample introduction mouths evenly distribute around the valve body, the valve body top center is installed one and is gone out the sample mouth, wherein, equally distributed 4 sample introduction mouths connect standard solution A container 1, standard solution B container 2, standard solution S container 3 and sampling receptacle 4 by silicone rubber tube respectively around the valve body, top center go out the sample mouth is connected to described three-way solenoid valve 6 by silicone rubber tube a mouth.
Provide a kind of clinical blomelicalbloodgasandelectrolrteanalyzers according to the utility model, it is characterized in that the material that described three-way solenoid valve adopts is a teflon, dead volume is zero, and b mouth wherein is that the silicone rubber tube of 1mm is connected to ion-selective electrode combination 7 by internal diameter.
Provide a kind of clinical blomelicalbloodgasandelectrolrteanalyzers according to the utility model, it is characterized in that described ion-selective electrode combination 7 comprises potassium, sodium, chlorine, four indicator electrodes of calcium and a contrast electrode.
Provide a kind of clinical blomelicalbloodgasandelectrolrteanalyzers according to the utility model, it is characterized in that the combination 7 of described ion-selective electrode is the tu bular through-flow structure, its electrode order of connection is followed successively by potassium, sodium, chlorine, calcium electrode and the outlet mouth of electrode is connected to peristaltic pump 8 by silicone rubber tube.The wriggling delivery side of pump is connected to waste liquid bottle 14.
Provide a kind of clinical blomelicalbloodgasandelectrolrteanalyzers according to the utility model, the c mouth that it is characterized in that described three-way solenoid valve 6 is connected to by silicone rubber tube on the bottle stopper of reactor 12 of carbon dioxide combining power, 4 hollow stainless pins are installed on the described bottle stopper, are connected to c mouth, electronic pressure transmitter 10, two three-way electromagnetic valves 9 and the peristaltic pump 11 of three-way solenoid valve 6 respectively by silicone rubber tube.
Implement clinical blomelicalbloodgasandelectrolrteanalyzers of the present utility model, can measure the clinical blomelicalbloodgasandelectrolrteanalyzers of potassium in the blood, sodium, chlorine, calcium, five kinds of parameters of carbon dioxide combining power simultaneously, this instrument can overcome the shortcoming of prior art, have easy and simple to handle, analysis speed is fast, amount of samples is few, the characteristics that the accuracy of measurement result is higher.The mensuration of potassium, sodium, chlorine, calcium adopts ion selective electrode method in this instrument, and the mensuration of carbon dioxide combining power adopts the piezometric method.Can calculate the content of carbon dioxide combining power by microcomputer automatically, the realization carbon dioxide combining power is measured to instrument automatically by hand dipping, and realized only needing sample introduction once, can measure potassium, sodium, chlorine, calcium, five kinds of parameters of carbon dioxide combining power, thereby reach easy to operate, amount of samples is few, the purpose that analysis speed is fast.
In conjunction with the accompanying drawings and embodiments, further specify characteristics of the present utility model, principle of work and measuring process, in the accompanying drawing:
Fig. 1 is the principle of work synoptic diagram of clinical blomelicalbloodgasandelectrolrteanalyzers of the present utility model;
Fig. 2 is that clinical blomelicalbloodgasandelectrolrteanalyzers intermediate ion of the present utility model is selected the electrode connection diagram;
Fig. 3 bows to synoptic diagram for five-way valve in the clinical blomelicalbloodgasandelectrolrteanalyzers of the present utility model;
Fig. 4 cuts open to synoptic diagram for five-way valve in the clinical blomelicalbloodgasandelectrolrteanalyzers of the present utility model;
Fig. 5 is the one-piece construction synoptic diagram of clinical blomelicalbloodgasandelectrolrteanalyzers of the present utility model.
Because five kinds of parameters of this apparatus measures are to be realized by two kinds of methods, earlier these two kinds of methods are done one and simply introduce, introduce the measuring process of this instrument then in detail.
1. potassium, sodium, chlorine, calcium ion-selective electrode mensuration
Ion-selective electrode is a class electrochemical sensor, and it can convert the concentration change for the treatment of measured ion in the solution to the variation of electrode potential, and its relation meets energy this spy (NERNST) equation, and the logarithm and the electrode potential of ie in solution intermediate ion activity are linear.In so-called " ion-selective electrode " it " selection ", be meant that sensor is only to the specific ion sensitivity., insensitive as the potassium electrode to other ion only to the potassium ion sensitivity.Potassium, sodium, chlorine, four kinds of combination of electrodes of calcium are got up, can measure potassium, sodium, the chlorine of a certain sample, the content of calcium ion simultaneously.
For overcoming of the influence of factors such as temperature, liquid junction potential to measurement result, before the measuring samples, earlier electrode to be demarcated, calibration process is:
Instrument automatically successively inhaled concentration be respectively c
AAnd c
BStandard solution A and standard solution B, measure its potential value E
AAnd E
B, obtain the actual slope S of electrode according to the Nernst equation.
Demarcation finishes, and instrument sucks sample, the pairing potential value E of measuring samples
X, calculate the concentration c for the treatment of measured ion in the sample thus
X
2. HCO
3 -The piezometric method
Blood serum sample is put into the container of certain volume, add excessive acid, make the sample acidifying, produce CO
2Gas is measured the pressure that is produced by this gas with electronic pressure transmitter.This pressure is proportional to CO
2The molal quantity of gas can calculate HCO in the serum by measuring this pressure
3 -Content.Chemical equation is as follows:
PV＝nRT＝c
XV
XRT (3)
P is CO in the formula
2The pressure that gas produces, V is a volume of a container, c
XBe the concentration in the sample, V
XBe sample volume, R is a gas law constant 0.082, and T is a thermodynamic temperature.
For overcoming temperature T, container volume V, amount of samples V
XEtc. the influence of factor, instrument adopts the known standard model of concentration that it is demarcated.If concentration is c
SStandard model, recording its pressure is P
S, concentration c
XFor testing sample, recording its pressure is P
X, then:
As shown in Figure 1,1 for demarcating the standard solution A container that ion-selective electrode is used, 2 for demarcating the standard solution B container that ion-selective electrode is used, 3 for demarcating the standard solution S container that carbon dioxide combining power piezometric method is used, 4 is sampling receptacle, 5 is the five-way sampling valve, 6 is three-way solenoid valve, and 7 (comprise potassium for ion-selective electrode combination, sodium, chlorine, four indicator electrodes of calcium and a contrast electrode), 8 is peristaltic pump, 9 is two three-way electromagnetic valves, 10 is electronic pressure transmitter, and 11 is peristaltic pump, and 12 is reactor, 13 reactant liquors of using for carbon dioxide combining power piezometric method (acid), 14 is waste liquid bottle, and 15 is rotating disc, and rotating disc 15 is made up of electric motor driven pallet, reactor 12 is placed in the pallet, is used for fast reaction speed.
As shown in Figure 3 and Figure 4, five-way sampling valve 5 is made up of valve body and spool.Valve body is the right cylinder of intermediate hollow, 4 the sample introduction mouths that evenly distribute around the valve body, and the valve body top center is installed one and is gone out the sample mouth.4 the sample introduction mouths that evenly distribute around the valve body connect standard solution A, standard solution B, standard solution S, sample by silicone rubber tube respectively.The sample mouth that goes out of top center is connected to three-way solenoid valve a mouth by silicone rubber tube.This instrument selection valve body material is a teflon, and dead volume is zero three-way solenoid valve, to eliminate the cross pollution of sample room.The b mouth of three-way solenoid valve is connected to the ion-selective electrode of combination by silicone rubber tube.
Ion-selective electrode adopts advanced tu bular through-flow structure, and this structure is easy to clean and the sample introduction robotization, and the order of connection of electrode as shown in Figure 2.The outlet mouth of electrode is connected to peristaltic pump by silicone rubber tube.The wriggling delivery side of pump is connected to waste liquid bottle.The c mouth of three-way solenoid valve is connected on the bottle stopper of reactor by silicone rubber tube.4 hollow stainless pins are installed on the bottle stopper.Be connected to c mouth, electronic pressure transmitter, two three-way electromagnetic valves and the peristaltic pump 11 of three-way solenoid valve respectively by silicone rubber tube.Another interface of peristaltic pump is connected to reactant liquor (acid) 13.Reactor is placed in the pallet of rotating disc.
Further specify the principle of work of analyser of the present utility model below:
Instrument sucks standard solution successively earlier ion-selective electrode, reactor is demarcated before measuring samples.Calibration process is as follows:
1. five-way sampling valve 5 is forwarded to the position of standard solution A1, three-way solenoid valve 6 does not power up (a--b is logical), and peristaltic pump 8 clockwise rotates, and standard solution A is sucked in the compound electrode 7, after treating that electrode potential is stable, measure potassium, sodium, chlorine, the current potential E of each electrode of calcium in standard solution A successively
A
Five-way rotary valve 5 is forwarded to the position of standard solution B2, three-way solenoid valve 6 does not power up (a--b is logical), and peristaltic pump 8 clockwise rotates, and standard solution B is sucked in the compound electrode 7, after treating that electrode potential is stable, measure potassium, sodium, chlorine, the current potential E of each electrode of calcium in standard solution B successively
BFinish demarcation according to formula (1) to each electrode.
2. five-way sampling valve 5 is forwarded to the position of titer S3, three-way solenoid valve 6 does not power up (a--b is logical), peristaltic pump 8 clockwise rotates, to suck in the electrode, three-way solenoid valve 6 powers up (b--c is logical) then, two three-way electromagnetic valves 9 are opened, and peristaltic pump 8 inhours are rotated, and standard solution S is injected in the reactor 12, two three-way electromagnetic valves 9 are closed, peristaltic pump 11 inhours are rotated, and excessive reactant liquor (acid) are joined reactor, rotating disc 15 quick rotation, reaction is quickened, question response is complete, by electronic pressure transmitter 10, obtains HCO
3 -Concentration is c
SStandard solution, the pairing pressure P in reaction back
S
Demarcation finishes and can carry out the measurement of sample.The measuring process of sample is as follows:
Forward five-way sampling valve 5 position of sample 4 to, three-way solenoid valve 6 does not power up (a--b is logical), and peristaltic pump 8 clockwise rotates, and sample is sucked in the electrode 7, treat that electrode potential is stable after, measure potassium, sodium, chlorine, the current potential E of each electrode of calcium in sample solution successively
SAccording to formula (2), can calculate the content of potassium, sodium, chlorine, four kinds of ions of calcium.Three-way solenoid valve 6 powers up (b--c is logical) then, two three-way electromagnetic valves 9 are opened, and peristaltic pump 8 inhours are rotated, and sample is injected in the reactor 12, two three-way electromagnetic valves 9 are closed, peristaltic pump 11 inhours are rotated, with the reactor that excessive acid adds, rotating disc 15 quick rotation, reaction is quickened, question response is complete, by electronic pressure transmitter 10, and pairing pressure P behind the acquisition example reaction
X, can calculate the content of carbon dioxide combining power according to formula (5).So only need sample introduction once, can measure potassium, sodium, chlorine, calcium, five kinds of parameters of carbon dioxide combining power.
Claims (5)
1. clinical blomelicalbloodgasandelectrolrteanalyzers, it is characterized in that, comprise: five-way sampling valve 5, by connecting pipe respectively with the container 1 of splendid attire standard solution A, the container 2 of splendid attire standard solution B, the container 3 that is used for splendid attire standard solution S, the container 4 of splendid attire sample, described five-way valve also communicates with a end of three-way solenoid valve 6, also comprise ion-selective electrode combination 7, the two ends of described ion-selective electrode combination 7 connect the b end of peristaltic pump 8 and three-way solenoid valve 6 respectively, peristaltic pump 8 other ends lead to waste fluid container 14, the c end of described three-way solenoid valve 6 is communicated to reactor 12, two three-way electromagnetic valves 9 in addition that communicate with reactor 12, electronic pressure transmitter 10 and peristaltic pump 11, the other end of peristaltic pump 11 lead to reactant liquor (acid) container.
2. clinical blomelicalbloodgasandelectrolrteanalyzers according to claim 1, it is characterized in that: the structure of described five-way sampling valve 5, comprise valve body and spool, valve body is the right cylinder of intermediate hollow, 4 sample introduction mouths evenly distribute around the valve body, the valve body top center is installed one and is gone out the sample mouth, wherein, equally distributed 4 sample introduction mouths connect standard solution A container 1, standard solution B container 2, standard solution S container 3 and sampling receptacle 4 by silicone rubber tube respectively around the valve body, top center go out the sample mouth is connected to described three-way solenoid valve 6 by silicone rubber tube a mouth.
3. clinical blomelicalbloodgasandelectrolrteanalyzers according to claim 1 is characterized in that the material that described three-way solenoid valve adopts is a teflon, and dead volume is zero, and b mouth is wherein linked ion-selective electrode combination 7, and the c mouth is linked reactor 12.
4. clinical blomelicalbloodgasandelectrolrteanalyzers according to claim 1 is characterized in that, also comprises a rotating disc 15 of being made up of motor-driven pallet, and described reactor 12 is placed in the pallet of rotating disc 15.
5. clinical blomelicalbloodgasandelectrolrteanalyzers according to claim 1, the c mouth that it is characterized in that described three-way solenoid valve 6 is connected on the bottle stopper of carbon dioxide combining power reactor 12 by silicone rubber tube, described carbon dioxide combining power reactor 12 can be a container with cover, a plurality of hollow interfaces are installed on the described lid, are connected to c mouth, electronic pressure transmitter 10, two three-way electromagnetic valves 9 and the peristaltic pump 11 of three-way solenoid valve 6 respectively by silicone rubber tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97240143U CN2300911Y (en) | 1997-06-11 | 1997-06-11 | Electrolyte analyzer for clinical diagnosis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97240143U CN2300911Y (en) | 1997-06-11 | 1997-06-11 | Electrolyte analyzer for clinical diagnosis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2300911Y true CN2300911Y (en) | 1998-12-16 |
Family
ID=33949974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97240143U Expired - Fee Related CN2300911Y (en) | 1997-06-11 | 1997-06-11 | Electrolyte analyzer for clinical diagnosis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2300911Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403762B (en) * | 2008-11-13 | 2011-12-28 | 江苏奥迪康医学科技有限公司 | Calibration device and method for peristaltic pump of electrolytic analysis instrument |
| CN101504419B (en) * | 2009-03-02 | 2012-02-08 | 深圳大学 | Blood analysis system used for high-communicable disease |
| CN101561409B (en) * | 2009-05-31 | 2012-05-30 | 河北科技大学 | Standard solution for electrolyte analysis and preparation method thereof |
| CN102866197A (en) * | 2012-04-14 | 2013-01-09 | 深圳市希莱恒医用电子有限公司 | Method for quickly detecting concentrations of various electrolytes by ion-selective electrodes |
| CN101504420B (en) * | 2009-03-02 | 2013-06-26 | 深圳大学 | Electrolyte analysis module and its peristaltic pump volume self-calibration method |
| CN103405235A (en) * | 2013-08-09 | 2013-11-27 | 兰州大学 | Multi-mode temperature control dynamic test device for blood oxygen differential pressure |
| CN104391022A (en) * | 2014-11-24 | 2015-03-04 | 深圳市希莱恒医用电子有限公司 | Novel electrolyte analyzer test mechanism |
| CN105044159A (en) * | 2015-09-09 | 2015-11-11 | 深圳市新产业生物医学工程股份有限公司 | Testing method for electrolyte analyzer |
| CN117969629A (en) * | 2024-04-02 | 2024-05-03 | 四川省疾病预防控制中心(四川省预防医学科学研究院四川省卫生监测检验中心) | System and method for detecting physiological index |
-
1997
- 1997-06-11 CN CN97240143U patent/CN2300911Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403762B (en) * | 2008-11-13 | 2011-12-28 | 江苏奥迪康医学科技有限公司 | Calibration device and method for peristaltic pump of electrolytic analysis instrument |
| CN101504419B (en) * | 2009-03-02 | 2012-02-08 | 深圳大学 | Blood analysis system used for high-communicable disease |
| CN101504420B (en) * | 2009-03-02 | 2013-06-26 | 深圳大学 | Electrolyte analysis module and its peristaltic pump volume self-calibration method |
| CN101561409B (en) * | 2009-05-31 | 2012-05-30 | 河北科技大学 | Standard solution for electrolyte analysis and preparation method thereof |
| CN102866197A (en) * | 2012-04-14 | 2013-01-09 | 深圳市希莱恒医用电子有限公司 | Method for quickly detecting concentrations of various electrolytes by ion-selective electrodes |
| CN102866197B (en) * | 2012-04-14 | 2015-05-06 | 深圳市希莱恒医用电子有限公司 | Method for quickly detecting concentrations of various electrolytes by ion-selective electrodes |
| CN103405235A (en) * | 2013-08-09 | 2013-11-27 | 兰州大学 | Multi-mode temperature control dynamic test device for blood oxygen differential pressure |
| CN104391022A (en) * | 2014-11-24 | 2015-03-04 | 深圳市希莱恒医用电子有限公司 | Novel electrolyte analyzer test mechanism |
| CN105044159A (en) * | 2015-09-09 | 2015-11-11 | 深圳市新产业生物医学工程股份有限公司 | Testing method for electrolyte analyzer |
| CN105044159B (en) * | 2015-09-09 | 2018-05-22 | 深圳市新产业生物医学工程股份有限公司 | The test method of blomelicalbloodgasandelectrolrteanalyzers |
| CN117969629A (en) * | 2024-04-02 | 2024-05-03 | 四川省疾病预防控制中心(四川省预防医学科学研究院四川省卫生监测检验中心) | System and method for detecting physiological index |
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Legal Events
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |