CN211402226U

CN211402226U - Blood sample detection electrode card

Info

Publication number: CN211402226U
Application number: CN201922247632.9U
Authority: CN
Inventors: 方磊
Original assignee: Evidence Based Medical Technology Hangzhou Co ltd
Current assignee: Guangzhou Decheng Biotechnology Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-09-01
Anticipated expiration: 2029-12-13

Abstract

The utility model relates to an electrode card for blood sample detection, which is a long plate-shaped electrode card and is provided with a front surface and a back surface; a row of electrodes are arranged on the front surface and on a central axis parallel to the long edges of the electrode card, and a row of first components are arranged on two sides of each row of electrodes; on the other side of each light source relative to the electrode, a second component is arranged; the front surface has an insulating layer thereon that avoids a row of the electrodes. The back surface is closely attached with a heating copper foil, two sides of the heating copper foil are respectively provided with a row of electrode contact points, and each electrode contact point is connected with one electrode; each electrode contact point corresponds to a unique electrode.

Description

Blood sample detection electrode card

Technical Field

The utility model relates to a blood sample detection's equipment.

Background

The electrode card for blood sample detection is mainly used for detecting blood samples. The conventional electrode device is directly disposed on a flow channel through which a blood sample flows, and an electrode is disposed to detect the blood sample. The electrode card is generally mounted on a fixture of the blood sample flow channel when used in conjunction with a test instrument. However, since the blood sample channel fixing device needs to contain blood as a liquid, there may be a splash, which may lead to corrosion of the electrodes.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a blood sample detection electrode card, this electrode card is provided with a plurality of electrodes, can work simultaneously. Simultaneously, can set up the detection original paper of blood sample bubble to the runner cooperation of difference on this electrode card, and set up the pollution that insulating apparatus placed the electrode.

The utility model discloses specific technical scheme as follows:

a blood sample detection electrode card is a long-plate-row electrode card, and the electrode card is provided with a front surface and a back surface;

a row of electrodes are arranged on the front surface and on a central axis parallel to the long edges of the electrode card, and a row of first components are arranged on two sides of each row of electrodes; on the other side of each light source relative to the electrode, a second component is arranged;

the front surface has an insulating layer thereon that avoids a row of the electrodes.

The back surface is closely attached with a heating copper foil, two sides of the heating copper foil are respectively provided with a row of electrode contact points, and each electrode contact point is connected with one electrode; each electrode contact point corresponds to a unique electrode.

Further, a resistor connected with the heating copper foil is arranged on the side surface of the row of electrode contact points.

Further, the resistor is a temperature control resistor.

Further, the insulating layer is a covering insulating layer or a coating insulating layer.

Further, the insulating layer has three layers.

Further, when the insulating layer is a coating insulating layer, a coating layer having a thickness of 0.3mm is coated everywhere on the front surface, and the three layers are 0.9mm in total.

Further, when the insulating layer is a cover insulating layer, the insulating layer is disposed according to a shape of the protrusion of the front surface.

Further, the first component is a light source or a photosensor, and the second component is a photosensor or a light source.

Further, at each electrode, the three insulating layers are distributed in a step-turn manner, so that the outer side of each electrode has three steps.

Through the technical scheme, firstly, the blood sample detection electrode card with a plurality of electrodes is designed, and secondly, the mounting positions of the first component and the second component can be arranged on the electrode card, so that the electrode card can be matched with a detection unit with a standardized or modularized flow channel structure. And thirdly, through the arrangement of the step insulating layer, a user can empirically judge the amount of the point liquid when using the electrode point liquid (the insulating layer is rotated in a step mode, and the capacity of the point-free primary liquid is the capacity which can be accommodated in a step circle and can be seen by naked eyes).

Drawings

Fig. 1 is a front structural view of the electrode card of the present invention.

Fig. 2 is a reverse structure view of the electrode card of the present invention.

Fig. 3 is a schematic view of the insulating layer of the electrode card of the present invention.

Fig. 4 is a schematic view of the present invention after an insulating layer is applied.

Fig. 5 is a structural diagram of the housing cooperating with the electrode card of the present invention.

Fig. 6 is an explosion diagram of the electrode card and the shell of the present invention.

Fig. 7 is an assembly view of the electrode card and the housing of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. 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.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and "a plurality" typically includes at least two, but does not exclude the presence of at least one.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be understood that although the terms first, second, third, etc. may be used to describe … … in embodiments of the present invention, these … … should not be limited to these terms. These terms are used only to distinguish … …. For example, first … … may also be referred to as second … …, and similarly second … … may also be referred to as first … …, without departing from the scope of embodiments of the invention.

The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

As shown in fig. 1-4, a blood sample measurement electrode card 3 is an elongated panel-row electrode card having a front side and a back side.

A row of electrodes are arranged on the front surface and on a central axis parallel to the long sides of the electrode card, and a row of first components 31 are arranged on two sides of each row of electrodes; on the other side of each light source with respect to the electrodes, a second component 32 is arranged. Preferably, the first component is a light source or a photosensor and the second component is a photosensor or a light source.

And resistors connected with the heating copper foil are arranged on the side surfaces of the electrode contact points in one row. Preferably, the resistor is a temperature controlled resistor.

The insulating layer is a covering insulating layer or a coating insulating layer. Preferably, the insulating layer has three layers.

When the insulating layer is a coating insulating layer, a coating layer with a thickness of 0.3mm is coated on each place of the front surface, and the three layers are 0.9mm in total.

When the insulating layer is a cover insulating layer, the insulating layer is arranged according to the shape of the protrusion of the front surface.

As shown in fig. 5, the casing 1 is a box body with an opening on one side, two protrusions 3 are arranged on the outer side of the bottom surface corresponding to the opening, through holes are arranged in the protrusions 3, and the through holes penetrate through the protrusions and the bottom surface.

On the inner side of the bottom surface, a flow channel 14 is arranged from one projection to the other projection, and the flow channel 14 is a groove-shaped flow channel.

A first circular groove 12 is provided at the beginning end of the flow channel 14, and a second circular groove 15 is provided at the end, the diameters of the first and second circular grooves being larger than the maximum width of the rest of the flow channel. The first circular groove part is connected with one of the raised through holes through a flow channel, and the second circular groove part is connected with the other raised through hole through a flow channel. The existence of the first circular groove part can buffer the blood sample, and the condition that the blood sample is insufficient is avoided.

The flow channel includes a first detection channel 13, a redistribution channel, and a second detection channel 16.

The first detection track 13 is connected to the first circular groove portion. Pits 11 are arranged on two sides of the first circular groove part; a plurality of pits are also uniformly arranged on both sides of the first detection track 13.

The redistribution trace connects the first detection trace 13.

The second detection lane 16 connects the redistribution lanes. Pits 11 are uniformly arranged on two sides of the second detection track 16, and pits 11 are also arranged on two sides of the second circular groove.

At least two mounting posts 17 are also provided on the inside of the housing for mounting the electrode card 2.

Preferably, first detection way 13, redistribution way and second detection way parallel arrangement are again the inboard of casing, connect through semi-circular runner between first detection way 13 and the redistribution way, redistribution way with also connect through semi-circular runner between the second detection way.

Preferably, the first and second detection tracks are equal in width, and the redistribution track is slightly larger in width than the first and second detection tracks. Thus, when a blood sample flowing into the channel flow channel from one convex through hole, passing through the first circular groove part and the first detection channel reaches the redistribution channel, the blood sample can be finely redistributed in the redistribution channel under the extrusion of the second detection channel which is narrower than the redistribution channel, and bubbles which cannot be detected in the first detection channel can be conveniently displayed in the redistribution channel. Said slightly larger is not larger than 0.5 mm. In fact, it should not be too large, and if it is too large, bubbles may be increased due to the larger space when the air flows from the first detection channel, but the bubbles may be removed as the flow continues. Applicant sets a diameter increase of 0.5mm and tests several times without finding any increased bubbles, which may preferably be 0.3 mm.

As shown in fig. 6, the whole detection system comprises a shell 1 and an electrode card 2. The back of the shell 1 is provided with a bulge 3, a through hole is arranged in the bulge 3, the peripheral surface of the bulge 3 is provided with a groove, and a sealing ring can be arranged in the groove. The system for detecting is matched with a detector for use, and the bulge 3 can be inserted into the detector for matching and installation. For the detection of blood samples, no standardized detection products exist at present, and all detection devices are different.

As shown in fig. 7, the mounting holes 38 are aligned with the mounting posts 17, so that the electrode card can be mounted in cooperation with the housing, and the electrode card is integrally located in the interior of the housing.

The utility model discloses an operation process as follows:

in the system installation channel detection instrument, a sealing ring is in close contact with a clamping position on the instrument, meanwhile, a corresponding thimble on the instrument is connected with an electrode contact point on the back of an electrode card, and then the instrument controls the heating copper foil on the electrode card to be heated to a fixed temperature. At the moment, the blood sample is injected into the through hole from the protrusion on the shell, and meanwhile, the light source and the photoelectric sensor on the electrode card are controlled to be started by the instrument.

If the blood contains air bubbles, when the blood flows through the light source beside the first circular groove part, the photoelectric sensor corresponding to the light source can detect the air bubbles, the control unit on the instrument records the air bubbles, and the counter is increased by 1. The photoelectric sensors on two sides of the first detection channel, including the photoelectric sensors beside the first circular groove part, count N photoelectric sensors, and then, the counter counts N.

And the two sides of the second detection channel comprise N photoelectric sensors beside the second circular groove part.

If no new bubble appears when the channel is redistributed, then every time a photoelectric sensor detects a channel bubble, the counter is decremented by 1.

When the blood sample fills the flow channel between the first and last photosensors and the bubble counter is 0. At this point, no air bubbles are present in the blood, and the instrument turns on the electrodes to detect the blood sample in the redistribution channel.

If new bubbles may occur for various reasons when the channel is redistributed, the counter value is less than 0 when the number of counters is decreased, and the counter value is less than 0 for at least a certain period of time during the blood flow period T even if new bubbles are generated.

Once there is a moment when the counter is less than 0, the counter is controlled to zero and the transport of the blood sample is suspended until the blood in the flow channel is completely removed from the other through hole.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The electrode card for detecting the blood sample is characterized in that the electrode card is a long-plate-shaped electrode card, and the electrode card is provided with a front surface and a back surface;

the front surface is provided with an insulating layer which avoids a row of the electrodes;

2. The electrode card as claimed in claim 1, wherein a side of a row of said electrode contact points is provided with a resistor connected to said heating copper foil.

3. The electrode card of claim 2, wherein the resistor is a temperature controlled resistor.

4. The electrode card of claim 3, wherein the insulating layer is a cover insulating layer or a coating insulating layer.

5. The electrode card of claim 4, wherein the insulating layer has three layers.

6. The electrode card according to claim 5, wherein when the insulating layer is a coating insulating layer, a coating layer having a thickness of 0.3mm is coated everywhere on the front surface, and the three layers are 0.9mm in total.

7. The electrode card according to claim 5, wherein when the insulating layer is a cover insulating layer, the insulating layer is provided in accordance with a shape of a projection of the front surface.

8. The electrode card of claim 5, wherein at each of the electrodes, the three layers of insulating layers are arranged in a step-and-turn arrangement such that the outside of each electrode has three steps.

9. The electrode card of claim 1, wherein the first component is a light source or a photosensor and the second component is a photosensor or a light source.