CN210720233U - Biochemical test card with filter element, reagent pack and blood gas analyzer - Google Patents
Biochemical test card with filter element, reagent pack and blood gas analyzer Download PDFInfo
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- CN210720233U CN210720233U CN201921004977.5U CN201921004977U CN210720233U CN 210720233 U CN210720233 U CN 210720233U CN 201921004977 U CN201921004977 U CN 201921004977U CN 210720233 U CN210720233 U CN 210720233U
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Abstract
The utility model relates to a biochemical test card with a filter element, which solves the technical problem that the liquid to be tested flows through and permeates into a reference flow passage and can pollute the reference liquid and an electrode arranged corresponding to the reference liquid; the electrode plate comprises a flow channel plate, a filter element and an electrode plate, wherein a liquid flow channel is formed on the upper end surface of the flow channel plate, and the liquid flow channel comprises a main flow channel for containing a liquid to be detected, a reference flow channel for containing a reference liquid, a waste liquid flow channel for discharging waste liquid and a transition flow channel; the filter element is provided with a plurality of micropores and is arranged in the transition flow channel and used for preventing the liquid flowing through the main flow channel from entering the reference flow channel and enabling the liquid flowing from the reference flow channel to the waste liquid flow channel through the transition flow channel to pass through; the electrode plate is sealed and arranged on the runner plate, the utility model also provides a reagent bag and a blood gas analyzer with the biochemical test card.
Description
Technical Field
The utility model relates to a biochemical detector technical field, concretely relates to biochemical test card, reagent package and blood gas analyzer with filter core.
Background
In medical diagnosis, the measurement of some indexes of the patient's blood, such as pH, hematocrit, ion concentration (K +, Na +, Cl-, Ca2+), glucose, lactic acid, O2, CO2 partial pressure, etc., is important in the diagnosis and treatment of disease conditions. Electrochemical sensor is because of its easy operation, it is quick, sensitive, accurate advantage, more and more be used for in medical analysis and clinical diagnosis, biochemical test card is an important part in electrochemical sensor, it is including the runner board that is equipped with the liquid runner, general liquid runner is at least including the sprue that holds the liquid (like blood) that awaits measuring, the reference runner that holds the reference liquid and the waste liquid runner of discharge waste liquid, in the use, current electrochemical sensor main runner is located the reference runner top when assembling, because reasons such as gravity and contact infiltration, the liquid that awaits measuring in the sprue can permeate down in the reference runner when flowing through the reference runner top, pollute reference liquid and correspond to the electrode that the reference liquid set up, influence and measure the accuracy.
SUMMERY OF THE UTILITY MODEL
The utility model provides a biochemical test card with filter core has solved among the prior art in the main flow channel waiting to detect the liquid can permeate the reference runner downwards when flowing through reference runner top in, pollute the reference liquid and correspond to the electrode that the reference liquid set up, influence the technical problem who measures the accuracy.
The utility model provides a scheme as follows of above-mentioned technical problem: a biochemical test card with a filter element is used for being matched with a detector for detection and comprises a runner plate, the filter element and an electrode plate, wherein a liquid flow channel is formed on the upper end face of the runner plate, the liquid flow channel comprises a main flow channel for containing a liquid to be detected, a reference flow channel for containing a reference liquid, a waste liquid flow channel for discharging waste liquid and a transition flow channel, a liquid inlet to be detected, a reference liquid inlet and a waste liquid outlet are formed on one side of the runner plate, the liquid inlet to be detected, the main flow channel, the waste liquid flow channel and the waste liquid outlet are sequentially communicated, one end of the reference flow channel is communicated with the reference liquid inlet, and the other end of the reference flow channel is communicated with the waste liquid flow channel through the transition flow channel; the filter core install in on the transition runner, the filter core is followed the length direction of transition runner has the micropore, the micropore aperture is less than and is located the molecular diameter of the liquid of waiting to detect in the sprue to be greater than and be located the molecular diameter of the reference liquid in the reference runner, the electrode slice seal set up in on the runner board, the electrode slice is close to one side of runner board corresponds the liquid runner is provided with the electrode point, its one side of keeping away from the runner board be equipped with the electrode that the electrode point corresponds electric connection.
The utility model provides a biochemical test card with filter core, it installs the filter core on transition runner, wherein the filter core has the micropore along transition runner's length direction, the millipore aperture is less than the molecular diameter who is located the liquid of waiting to measure in the sprue, and be greater than the molecular diameter who is located the reference liquid in the reference runner, can prevent the liquid of waiting to measure in the sprue effectively and get into the reference runner, the reference liquid that can make in the reference runner simultaneously passes through smoothly, the waste liquid that sprue and reference runner produced all can merge and discharge in the waste liquid runner under external power, the technical problem who pollutes reference liquid and corresponding electrode among the prior art in waiting to measure the liquid infiltration reference runner has effectively been solved.
In addition, the utility model also provides a reagent package and blood gas analyzer that have above-mentioned biochemical test card.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a schematic perspective view of a flow channel plate according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the area X in FIG. 1;
FIG. 3 is an exploded view of a structure of a biochemical test card according to an embodiment of the present invention;
fig. 4 is a schematic plan view of a side of the electrode plate close to the runner plate in an embodiment of the present invention;
fig. 5 is a schematic plan view of a side of the electrode plate away from the runner plate according to an embodiment of the present invention;
FIG. 6 is an exploded view of another structure of a biochemical test card according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of a reagent pack according to a second embodiment of the present invention;
fig. 8 is a schematic structural view of a blood gas analyzer in the third embodiment of the present invention;
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
Example one
As shown in fig. 1 to 6, the present invention provides a biochemical test card 100 with a filter element, which includes a flow channel plate 1, a filter element 2 and an electrode plate 3.
The upper end face of the runner plate 1 is provided with a liquid flow channel 11, the liquid flow channel 11 comprises a main flow channel 111 for containing a liquid to be measured, a reference flow channel 112 for containing a reference liquid, a waste liquid flow channel 113 for discharging waste liquid and a transition flow channel 114, a liquid inlet 1a to be measured, a reference liquid inlet 1b and a waste liquid outlet 1c are formed in one side of the runner plate 1, the liquid inlet 1a to be measured, the main flow channel 111, the waste liquid flow channel 113 and the waste liquid outlet 1c are sequentially communicated, one end of the reference flow channel 112 is communicated with the reference liquid inlet 1b, and the other end of the reference flow channel 112 is communicated with the waste liquid flow channel 113 through the transition flow channel 114.
The filter element 2 has a plurality of micropores and is disposed in the transition flow channel 114 for preventing the liquid flowing through the main flow channel from entering the reference flow channel 112 and allowing the liquid flowing from the reference flow channel 112 to the waste liquid flow channel 112 through the transition flow channel 114, specifically, the filter element 2 has micropores along the length direction of the transition flow channel 114, and the pore diameter of the micropores is smaller than the molecular diameter of the flowing solution in the main flow channel and larger than the molecular diameter of the reference liquid in the reference flow channel.
The electrode plate 3 is hermetically arranged on the flow channel plate 1, so that a liquid flow channel 11 on the flow channel plate 1 forms a closed liquid path pipeline, wherein a sealing component 13 between the electrode plate 3 and the flow channel plate 1 comprises but is not limited to a double-sided adhesive tape, a liquid adhesive tape or an elastomer; one side of the electrode plate 3 close to the flow channel plate 1 is provided with an electrode point 31 corresponding to the liquid flow channel, and one side of the electrode plate far away from the flow channel plate 1 is provided with an electrode 32 electrically connected with the electrode point 31 correspondingly.
Specifically, a conductive through hole 33 is formed in the electrode sheet 3, and the electrode point 31 is electrically connected to the corresponding electrode 32 through the conductive through hole 33; in this embodiment, a conductive material is plated on the inner wall of the conductive through hole 33, and the conductive electrode point 31 is connected to the conductive material, and the electrode 32 is connected to the conductive material, so that the electrode point is electrically connected to the corresponding electrode, and when the detector is used, the information transmission between the biochemical test card 100 and the detector can be realized when the detector is butted with the electrode 32 of the electrode pad 3 through the connection terminal (Pogo Pin).
In this embodiment, in order to prevent the mutual interference between the electrode points, a shielding film is disposed on one side of the electrode plate 3 close to the flow channel plate 1, through holes are disposed on the shielding film corresponding to the electrode points 31, and the aperture of each through hole is matched with the diameter of each electrode point; the shielding film may be, but not limited to, an electrode sheet coated with an insulating film, or a thin film insulating material plated on the surface of the electrode sheet.
In this embodiment, the biochemical test card 100 further includes a heating body 4, and specifically, the heating body 4 is attached to one side of the electrode plate 3 away from the runner plate 1.
The heating body 4 is provided with a temperature sensor 41 and an information storage chip 42 (i.e. an IC card), the temperature sensor 41 is electrically connected with the end of the heating body 4 to realize information transmission with a detector, and the temperature sensor 41 is arranged close to the electrode plate 3 for real-time monitoring of the temperature of the electrode plate; more specifically, the temperature sensor 41 is electrically connected to a conductive connection portion 43 (gold pad) on the extended end of the heating body through a flexible circuit board provided on the heating body, and the information storage chip 42 is electrically connected to the conductive connection portion 43, so as to electrically connect the temperature sensor 41 and the information storage chip 42; in the present embodiment, the information storage chip 42 stores various information of the biochemical test card 100, such as the type, batch, date, and other related information of the test card and the reagent pack, and the temperature information of the heating body, and the information storage chip 42 and the detector are electrically connected through the conductive connection portion 43 (gold pad) for realizing the information transmission between the information storage chip 42 and the detector.
The heating body is directly attached to the electrode plate, so that liquid in the liquid channel in the biochemical test card can be directly heated, the temperature sensor attached to the electrode plate can feed back the temperature of the liquid in the channel in real time, the heating mode is direct, quick and accurate, the detection time is shortened, and the detection efficiency is improved.
It can be understood that, when the biochemical test card 100 of the present embodiment is installed on a detector for use, the detector obtains various corresponding related information and the temperature of the biochemical test card through the information storage chip 42 of the biochemical test card 100, and controls the heating state of the heating body 4 in a preset manner according to the temperature sensed by the temperature sensor 41, so as to ensure that the liquid in the liquid flow channel 11 is in a working constant temperature state.
In order to ensure that the heating body 4 can heat the liquid in the liquid flow channel 11, the heating area of the heating body 4 at least covers the liquid flow channel 11.
In order to ensure that the heating contact surface of the heating body 4 relative to the electrode plate 3 is smooth so as to increase the heating contact area, one side of the heating body 4 close to the electrode plate 3 is plated with a metal heat-conducting layer, and the metal heat-conducting layer is adhered to the electrode plate 3 through flexible heat-conducting silica gel.
Preferably, the metal heat conduction layer may be, but is not limited to, a copper film. The electrode plates 3 serve as heat conducting media for the liquid pipeline, ceramic materials with good heat conductivity are preferably adopted, meanwhile, aluminum-based materials can also be used, and the materials need to be correspondingly non-conducting or conducting according to the trend of the circuit.
As shown in fig. 1, the biochemical test card 100 further includes a pressing cover 5, a buckle 51 is disposed on a side of the pressing cover 5, a slot 12 matched with the buckle 51 is disposed on the flow channel plate 1, and the pressing cover 5 is mounted on the flow channel plate 1 through the matching of the buckle 51 and the slot 12.
It is understood that the position of the engaging groove 12 is only required to be the exposed peripheral boundary portion of the flow channel plate 1 after the electrode sheet 3 is attached to the flow channel plate 1. The pressing cover 5 is clamped on the flow channel plate 1 through the matching of the buckle 51 and the clamping groove 12, so that the heating body 4 and the electrode plate 3 are tightly pressed on the flow channel plate 1, and the sealing durability and stability of all parts of the biochemical test card 100 are ensured.
The utility model provides a biochemical test card with filter core, it installs the filter core on transition runner, wherein the filter core has the micropore along transition runner's length direction, the millipore aperture is less than the molecular diameter who is located the liquid of waiting to measure in the sprue, and be greater than the molecular diameter who is located the reference liquid in the reference runner, can prevent the liquid of waiting to measure in the sprue effectively and get into the reference runner, the reference liquid that can make in the reference runner simultaneously passes through smoothly, the waste liquid that sprue and reference runner produced all can merge and discharge in the waste liquid runner under external power, the technical problem who pollutes reference liquid and corresponding electrode among the prior art in waiting to measure the liquid infiltration reference runner has effectively been solved.
Example two
As shown in FIG. 7, this embodiment provides a reagent pack 200, and the reagent pack 200 includes the biochemical test card 100 as disclosed in example 1.
EXAMPLE III
As shown in fig. 8, the present embodiment provides a blood gas analyzer 300, and the blood gas analyzer 300 includes the reagent pack 200 as disclosed in example 2.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the present invention can be smoothly implemented by those skilled in the art according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.
Claims (10)
1. A biochemical test card with a filter element is used for matching with a detector for detection, and is characterized by comprising:
the liquid flow channel comprises a main flow channel for containing a liquid to be detected, a reference flow channel for containing a reference liquid, a waste liquid flow channel for discharging waste liquid and a transition flow channel, a liquid inlet to be detected, a reference liquid inlet and a waste liquid outlet are formed in one side of the flow channel plate, the liquid inlet to be detected, the main flow channel, the waste liquid flow channel and the waste liquid outlet are sequentially communicated, one end of the reference flow channel is communicated with the reference liquid inlet, and the other end of the reference flow channel is communicated with the waste liquid flow channel through the transition flow channel;
a filter element having a plurality of micropores and disposed in the transition flow channel for preventing the liquid flowing through the main flow channel from entering the reference flow channel and allowing the liquid flowing from the reference flow channel to the waste liquid channel through the transition flow channel;
the electrode plate is arranged on the runner plate in a sealing mode, one side, close to the runner plate, of the electrode plate corresponds to the liquid runner and is provided with electrode points, and one side, far away from the runner plate, of the electrode plate is provided with electrodes which are electrically connected with the electrode points in a corresponding mode.
2. The biochemical test card with the filter element according to claim 1, further comprising a heating body, wherein the heating body is attached to one side of the electrode plate far away from the runner plate, the heating body is provided with a temperature sensor, and the temperature sensor is electrically connected with the end of the heating body so as to be used for realizing information transmission with the detector.
3. The biochemical test card with a filter element according to claim 2, wherein the filter element has micropores along the length direction of the transition flow channel, and the pore size of the micropores is smaller than the molecular diameter of the liquid flowing through the main flow channel and larger than the molecular diameter of the reference liquid in the reference flow channel.
4. The biochemical test card with a filter element according to claim 2, wherein a shielding film is disposed on a side of the electrode plate close to the flow channel plate, a through hole is disposed on the shielding film corresponding to the electrode point, and the aperture of the through hole matches with the diameter of the electrode point.
5. The biochemical test card with a filter cartridge according to claim 2, wherein the heating region of the heating body covers at least the liquid flow channel.
6. The biochemical test card with a filter element according to claim 2, wherein a side of the heating body near the electrode sheet is plated with a metal heat conduction layer, and the metal heat conduction layer is attached to the electrode sheet through flexible heat conduction silica gel.
7. The biochemical test card with a filter element according to claim 2, further comprising an information storage chip disposed at an end of the heating body, wherein the temperature sensor is electrically connected to the information storage chip.
8. The biochemical test card with a filter element according to claim 2, further comprising a pressing cover, wherein a buckle is disposed on a side of the pressing cover, a slot cooperating with the buckle is disposed on the flow channel plate, and the pressing cover is mounted on the flow channel plate by cooperation of the buckle and the slot.
9. A kit comprising a biochemical test card having a cartridge according to any one of claims 1-8.
10. A blood gas analyzer, comprising the reagent pack of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921004977.5U CN210720233U (en) | 2019-06-28 | 2019-06-28 | Biochemical test card with filter element, reagent pack and blood gas analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921004977.5U CN210720233U (en) | 2019-06-28 | 2019-06-28 | Biochemical test card with filter element, reagent pack and blood gas analyzer |
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| Publication Number | Publication Date |
|---|---|
| CN210720233U true CN210720233U (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921004977.5U Active CN210720233U (en) | 2019-06-28 | 2019-06-28 | Biochemical test card with filter element, reagent pack and blood gas analyzer |
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| CN (1) | CN210720233U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024027668A1 (en) * | 2022-07-31 | 2024-02-08 | 深圳市理邦精密仪器股份有限公司 | Sample test card |
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2019
- 2019-06-28 CN CN201921004977.5U patent/CN210720233U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024027668A1 (en) * | 2022-07-31 | 2024-02-08 | 深圳市理邦精密仪器股份有限公司 | Sample test card |
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