CN217112163U - Replaceable membrane pO 2 -pCO 2 Integrated electrode and blood gas electrolyte analyzer - Google Patents
Replaceable membrane pO 2 -pCO 2 Integrated electrode and blood gas electrolyte analyzer Download PDFInfo
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- CN217112163U CN217112163U CN202123177581.0U CN202123177581U CN217112163U CN 217112163 U CN217112163 U CN 217112163U CN 202123177581 U CN202123177581 U CN 202123177581U CN 217112163 U CN217112163 U CN 217112163U
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Abstract
The utility model discloses a interchangeable membrane pO 2 ‑pCO 2 Integrated electrode and blood gas electrolyte analyzer, the replaceable membrane pO 2 ‑pCO 2 The integrated electrode includes: housing, pO 2 Electrode core and pCO 2 An electrode core, wherein said pO 2 Electrode core and pCO 2 An electrode core is integrally arranged in the shell, and the pO 2 Electrode core and pCO 2 The electrode cores are adjacently arranged. The utility model discloses a single pieceForm pO 2 Electrode and pCO 2 The electrodes are integrated into a whole, the number of interfaces between the electrodes can be reduced, the electrode film can be replaced, the respective defects of the block-shaped electrodes and the test card are overcome, the probability of flow path blockage can be reduced, and the manufacturing cost and the using cost of the electrodes can be reduced.
Description
Technical Field
The utility model relates to a blood gas electrolyte analyzer technical field, in particular to interchangeable membrane pO 2 -pCO 2 Integrated electrode and blood gas electrolyte analysis appearance.
Background
As shown in FIGS. 1 and 2, the prior art of FIGS. 1 and 2 shows a single pO 2 Polar to single pCO 2 Schematic representation of the relationship of electrodes in a flow path, wherein FIG. 1 is a front view, FIG. 2 is a left side view, and FIG. 1 and FIG. 2 show a single pO in the prior art 2 Polar to single pCO 2 The blood gas electrolyte analyzer for the electrode has a total of three ports, respectively A, B, C.
In the field of blood gas electrolyte analyzers, there are currently two development directions for electrodes (sensor devices): one is a bulk electrode, one electrode provides a specific project parameter; one is an integrated multi-parameter test card.
The block electrode has the advantages of long service life, more than 1 year, even years and more test times, but the block electrode has the defect that when a single electrode is installed, the flow path holes between the electrode and the block electrode are not aligned well, and if the alignment is not correct, the flow path is easy to block; in addition, when the service life of the electrode film is over, the electrode film is inconvenient to replace, so that the electrode cannot be reused, and the production cost of the electrode is extremely high. The test card has the advantages of more test parameters, small volume, short flow path and the like, but the service life of the test card is short, generally about one month, and the test times are few.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides an integrated electrode of interchangeable membrane pO2-pCO2 and blood gas electrolyte analyzer, aims at reducing the interface number between electrode and the electrode to realize that the electrode membrane is interchangeable, overcome cubic electrode and the respective shortcoming of test card, reduce the probability that the flow path blockked up, reduce the manufacturing cost and the use cost of electrode.
In order to achieve the above purpose, the utility model provides a membrane-replaceable pO 2 -pCO 2 An integrated electrode, comprising: housing, pO 2 Electrode core and pCO 2 An electrode core, wherein said pO 2 Electrode core and pCO 2 An electrode core is integrally arranged in the shell, and the pO 2 Electrode core and pCO 2 The electrode cores are adjacently arranged.
The further technical proposal of the utility model is that 2 Electrode core and pCO 2 The electrode cores have the same structure, and the pO 2 Electrode core and the pCO 2 The electrode core adopts a positive and negative electrode integrated structure.
The further technical proposal of the utility model is that, the pO 2 Electrode core and the pCO 2 The electrode core comprises a positive electrode contact seat, a negative electrode contact seat, a platinum wire, a silver ring and a glass tube;
the silver ring is connected with the negative contact seat through a power line to form an electrode negative group, the platinum wire is embedded in the glass tube, and the platinum wire is connected with the positive contact seat to form an electrode positive group.
The further technical proposal of the utility model is that, the pO 2 Electrode core and the pCO 2 The electrode core also comprises a pressing barrel, a liquid storage barrel, a rubber ring, a spring, a pressing cap and a membrane group;
wherein, press the bucket with through threaded connection between the stock solution bucket, compress tightly the rubber ring, the upper end butt of spring press the bucket, the lower extreme butt press the cap, through the rubber ring is adjusted the front end of glass pipe with the pO on the membrane group 2 Membranes or pCO 2 Degree of tightness between films.
The utility model discloses a further technical scheme is, rubber ring, stock solution bucket and membrane group form the closed cavity, fill the interior liquid of filling that electrode electrochemical reaction is required in the closed cavity.
The utility model discloses a further technical scheme is, set up the gas-sensitive membrane on the membrane group, the gas-sensitive membrane is arranged in keeping apart the inside interior liquid of electrode and the liquid in the flow path, oxygen in the liquid in the flow path is passed through the gas-sensitive membrane gets into in the interior liquid, with the surface of platinum gold wire takes place redox reaction.
The utility model discloses a further technical scheme is, the membrane group include the membrane seat, set up in on the membrane group gas-sensitive membrane, first sealing washer and second sealing washer, wherein, the gas-sensitive membrane passes through first sealing washer hoop is in on the pressure membrane seat, first sealing washer directly connects the hoop is in on the pressure membrane seat, the membrane group passes through first sealing washer with the stock solution bucket is connected.
The utility model discloses a further technical scheme is, press the last hole periphery of membrane seat to open a slot, so that interior filling liquid permeates to on the gas sensitive membrane.
The utility model discloses a further technical scheme is, set up flutedly on the casing, be provided with on the stock solution bucket with the corresponding flange of recess.
The technical scheme of the utility model is that, the blood gas electrolyte analysis appearance includes the interchangeable membrane pO2-pCO2 integrated electrode of any one of claims 1 to 9.
The utility model discloses the beneficial effect of integrated electrode of interchangeable membrane pO2-pCO2 and blood gas electrolyte analyzer is: the utility model discloses a with single cubic pO 2 Electrode and pCO 2 The electrodes are integrated into a whole, the number of interfaces between the electrodes can be reduced, the electrode film can be replaced, the respective defects of the block-shaped electrodes and the test card are overcome, the probability of flow path blockage can be reduced, and the manufacturing cost and the using cost of the electrodes can be reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a prior art single pO 2 Polar to single pCO 2 A front view of the electrode in the flow path;
FIG. 2 is a prior art single pO 2 Polar to single pCO 2 A left view of the electrode in the flow path;
FIG. 3 shows the replaceable membrane pO of the present invention 2 -pCO 2 The integral structure of the integrated electrode is shown schematically;
FIG. 4 shows the replaceable membrane pO of the present invention 2 -pCO 2 A cross-sectional view of the integrated electrode;
FIG. 5 is pO 2 A cross-sectional view of the electrode core;
FIG. 6 is a schematic diagram of the structure of a membrane module;
FIG. 7 is a schematic view of the membrane holder;
FIG. 8 is a schematic structural view of the housing;
FIG. 9 is pO 2 The overall structure of the electrode core is schematically shown.
The reference numbers illustrate:
a housing 1; pO2 electrode core 2; pCO2 electrode core 3; a positive contact base 4; a negative contact seat 5; 6 parts of a platinum wire; a silver ring 7; a glass tube 8; pressing the barrel 9; a liquid storage barrel 10; a rubber ring 11; a spring 12; a press cap 13; a membrane module 14; a gas-sensitive film 15; a membrane seat 16; a first seal ring 17; a second seal ring 18; a slot 19; a recess 20; a flange 21; filled with liquid 22.
The realization, the functional characteristics and the advantages of the utility model are further explained by combining the embodiment and referring to the attached drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
The utility model provides a interchangeable membrane pO 2 -pCO 2 Integrated electrode, the utility model can be used for oxygen partial pressure (pO) of blood gas electrolyte analyzer 2 ) And partial pressure of carbon dioxide (pCO) 2 ) The measurement of (1).
Referring to fig. 3 to 9, the present invention is a replaceable membrane pO 2 -pCO 2 The preferred embodiment of the integrated electrode comprises a shell 1, a pO2 electrode core 2 and a pCO2 electrode core 3, wherein the pO2 electrode core 2 and the pCO2 electrode core 3 are integrally arranged in the shell 1, and the pO2 electrode core 2 and the pCO2 electrode core 3 are adjacently arranged.
In this example, the replaceable Membrane pO 2 -pCO 2 The integrated electrode has only A, C two interfaces, whereas the prior art single pO shown in FIGS. 1 and 2 2 Polar to single pCO 2 The blood gas electrolyte analysis appearance of electrode has three interface altogether, is A, B, C respectively, and for prior art, this embodiment has reduced an interface to this analogize, the utility model discloses can trade membrane pO 2 -pCO 2 The integrated electrode is integrated with n single block electrodes, so that n-1 interfaces can be reduced, and the integrated electrode can be selected according to actual conditions.
This example was achieved by mixing a single bulk pO 2 Electrode and pCO 2 The electrodes are integrated into a whole, the number of interfaces between the electrodes can be reduced, the electrode film can be replaced, the respective defects of the block-shaped electrodes and the test card are overcome, the probability of flow path blockage can be reduced, and the manufacturing cost and the using cost of the electrodes can be reduced.
Specifically, in this embodiment, the pO2 electrode core 2 and the pCO2 electrode core 3 have the same structure, and the pO2 electrode core 2 and the pCO2 electrode core 3 adopt an anode-cathode integrated structure.
The pO2 electrode core 2 and the pCO2 electrode core 3 comprise a positive electrode contact seat 4, a negative electrode contact seat 5, a platinum wire 6, a silver ring 7 and a glass tube 8.
The outer surface of the silver ring 7 is plated with Agcl and is connected with the negative contact seat 5 through a power line to form an electrode negative group, so as to form a negative electrode of electrochemical reaction; the platinum wire 6 is embedded in the glass tube 8, and the platinum wire 6 is connected with the positive contact seat 4 through a power line to form an electrode positive electrode group to form a positive electrode of the electrochemical reaction.
Further, in this embodiment, the pO2 electrode core 2 and the pCO2 electrode core 3 further include a pressing barrel 9, a liquid storage barrel 10, a rubber ring 11, a spring 12, a pressing cap 13, and a membrane group 14.
Wherein, press through threaded connection between bucket 9 and the liquid storage barrel 10, compress tightly the periphery of rubber ring 11, the upper end butt of spring 12 presses bucket 9, and the cap 13 is pressed in the lower extreme butt, adjusts the front end of glass pipe 8 and the pO on the membrane group 14 through rubber ring 11 2 Membranes or pCO 2 Degree of tightness between films.
Further, in this embodiment, the rubber ring 11, the liquid storage barrel 10 and the membrane module 14 form a closed cavity, and an inner filling liquid 22 required by the electrochemical reaction of the electrode is filled in the closed cavity to provide a liquid environment for the electrochemical reaction.
Further, in the present embodiment, the gas sensing film 15 (i.e., electrode film, pO) is disposed on the film group 14 2 Membranes or pCO 2 Film), the gas sensitive film 15 is used for separating the internal filling liquid 22 in the electrode from the liquid in the flow path, and the oxygen in the liquid in the flow path permeates the gas sensitive film 15 into the internal filling liquid 22 and generates oxidation-reduction reaction with the surface of the platinum wire 6.
The gas-sensitive film 15 on the film group 14 can separate the internal filling liquid 22 in the electrode from the liquid in the flow path, but the oxygen in the liquid in the flow path can penetrate through the gas-sensitive film 15 to enter the internal filling liquid 22 and then reach the surface of the cathode platinum wire 6 to generate oxidation-reduction reaction, and the generated current and the O in the flow path channel 2 The partial pressures are proportional, and O in the liquid in the flow path can be detected by this method 2 Partial pressure.
In this embodiment, the membrane group 14 includes the membrane seat 16, sets up gas-sensitive membrane 15, first sealing washer 17 and the second sealing washer 18 on the membrane group 14, and wherein, gas-sensitive membrane 15 hoops on pressing the membrane seat 16 through first sealing washer 17, and first sealing washer 17 directly connects on pressing the membrane seat 16, and the membrane group 14 is in the same place through first sealing washer 17 and the assembly of stock solution bucket 10. Once the electrode film has finished its service life, the pressing cap 13 can be unscrewed, the electrode core can be taken out from the cavity of the electrode shell 1, and then the old film group 14 is detached from the electrode core and replaced by a new film group 14; then the electrode core with the new membrane group 14 is arranged in the cavity of the electrode shell 1, and the electrode can be used continuously. Thus, the whole electrode becomes an exchangeable membrane electrode, and when the electrode membrane is in the end of its life, a new membrane group 14 is exchanged.
Further, in this embodiment, the periphery of the upper hole of the membrane pressing base 16 is provided with a slot 19, so that the inner filling liquid 22 can permeate the gas sensitive membrane 15.
The shell 1 is provided with a groove 20, and the liquid storage barrel 10 is provided with a flange 21 corresponding to the groove 20 so as to ensure that the electrode core does not rotate along with the pressing cap 13 when the electrode core is arranged in the shell 1 and the pressing cap 13 is screwed down, thereby avoiding damaging the gas-sensitive film 15.
The utility model discloses the beneficial effect of the integrated electrode of interchangeable membrane pO2-pCO2 is: the utility model discloses a with single cubic pO 2 Electrode and pCO 2 The electrodes are integrated into a whole, the number of interfaces between the electrodes can be reduced, the electrode film can be replaced, the respective defects of the block-shaped electrodes and the test card are overcome, the probability of flow path blockage can be reduced, and the manufacturing cost and the using cost of the electrodes can be reduced.
In order to achieve the above object, the present invention further provides a blood gas electrolyte analyzer, which comprises the replaceable membrane pO2-pCO2 integrated electrode as described in the above embodiments, and the structure and operation principle of the replaceable membrane pO2-pCO2 integrated electrode have been described in detail above, and are not described herein again.
The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (8)
1. Replaceable membrane pO 2 -pCO 2 An integrated electrode, comprising: housing, pO 2 Electrode core and pCO 2 An electrode core, wherein said pO 2 Electrode core and pCO 2 An electrode core integrally arranged in the casing, the pO 2 Electrode core and pCO 2 The electrode cores are arranged adjacently;
the pO 2 Electrode core and pCO 2 The electrode cores have the same structure, and the pO 2 Electrode core and the pCO 2 The electrode core adopts a positive and negative electrode integrated structure;
the pO 2 Electrode core and the pCO 2 The electrode core comprises a positive electrode contact seat, a negative electrode contact seat, a platinum wire, a silver ring and a glass tube;
the silver ring is connected with the negative contact seat through a power line to form an electrode negative group, the platinum wire is embedded in the glass tube, and the platinum wire is connected with the positive contact seat to form an electrode positive group.
2. Replaceable membrane pO according to claim 1 2 -pCO 2 An integrated electrode, characterized in that said pO 2 Electrode core and the pCO 2 The electrode core also comprises a pressing barrel, a liquid storage barrel, a rubber ring, a spring, a pressing cap and a membrane group;
wherein, press the bucket with through threaded connection between the stock solution bucket, compress tightly the rubber ring, the upper end butt of spring press the bucket, the lower extreme butt press the cap, through the rubber ring is adjusted the front end of glass pipe with the pO on the membrane group 2 Membranes or pCO 2 Degree of tightness between films.
3. Replaceable membrane pO according to claim 2 2 -pCO 2 The integrated electrode is characterized in that the rubber ring, the liquid storage barrel and the membrane group form a closed cavity, and the closed cavity is filled with inner filling liquid required by the electrochemical reaction of the electrode.
4. Switchable film pO according to claim 3 2 -pCO 2 The integrated electrode is characterized in that a gas-sensitive film is arranged on the film group and used for separating internal filling liquid in the electrode from liquid in a flow path, and oxygen in the liquid in the flow path permeates the gas-sensitive filmThe film enters the inner filling liquid and has oxidation-reduction reaction with the surface of the platinum wire.
5. The replaceable membrane pO2-pCO2 integrated electrode of claim 4, wherein the membrane set comprises a membrane holder, the gas-sensitive membrane disposed on the membrane set, a first sealing ring and a second sealing ring, wherein the gas-sensitive membrane is directly connected to the membrane holder by the first sealing ring, and the membrane set is connected to the liquid storage barrel by the first sealing ring.
6. The interchangeable membrane pO2-pCO2 integrated electrode of claim 5, wherein the membrane holder has a peripheral groove around the upper hole to facilitate penetration of the internal filling liquid onto the gas-sensitive membrane.
7. The replaceable membrane pO2-pCO2 integrated electrode as claimed in claim 6, wherein the shell is provided with a groove, and the liquid storage barrel is provided with a flange corresponding to the groove.
8. A blood gas electrolyte analyzer comprising the replaceable membrane pO2-pCO2 integrated electrode of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123177581.0U CN217112163U (en) | 2021-12-16 | 2021-12-16 | Replaceable membrane pO 2 -pCO 2 Integrated electrode and blood gas electrolyte analyzer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123177581.0U CN217112163U (en) | 2021-12-16 | 2021-12-16 | Replaceable membrane pO 2 -pCO 2 Integrated electrode and blood gas electrolyte analyzer |
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| Publication Number | Publication Date |
|---|---|
| CN217112163U true CN217112163U (en) | 2022-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123177581.0U Active CN217112163U (en) | 2021-12-16 | 2021-12-16 | Replaceable membrane pO 2 -pCO 2 Integrated electrode and blood gas electrolyte analyzer |
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| CN (1) | CN217112163U (en) |
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- 2021-12-16 CN CN202123177581.0U patent/CN217112163U/en active Active
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