CN219475326U - A simple and easy-to-acquire device for counting lysate in peripheral blood by PLT - Google Patents

Abstract

The utility model relates to the field of peripheral blood counting PLT counting, in particular to a device for easily obtaining peripheral blood PLT counting solution, including a microcentrifuge tube, which is used to contain diluent to dissolve peripheral blood; In the opening at the top of the microcentrifuge tube; the capillary blood collection tube is pierced and fixed in the rubber stopper for collecting peripheral blood; the first movable cover is used for closing and opening the opening at the top of the microcentrifuge tube, And when the first movable cover closes the opening, the bottom of the capillary tube is at least below the liquid level of the diluent in the microcentrifuge tube; the drop opening is located on the first movable cover, so that The diluent dissolved with peripheral blood drips out. The device fully dissolves the peripheral blood in the capillary blood collection tube into the diluent by shaking and oscillating up and down, which overcomes the existing problem that the peripheral blood tends to remain on the inner wall of the capillary blood collection tube due to the blowing method, resulting in large counting errors.

Description

A simple and easy-to-acquire device for counting lysate in peripheral blood by PLT

technical field

The utility model relates to the field of PLT counting in peripheral blood, in particular to a device for easily obtaining peripheral blood PLT counting solution.

Background technique

The existing platelet count is mainly by using the capillary blood collection tube to take the peripheral blood, and then the peripheral blood in the capillary blood collection tube is blown into the centrifuge tube containing the lysate by blowing, and then dripped from the centrifuge tube onto the counting plate. microscopic counting. The problem with this method is that the peripheral blood in the capillary blood collection tube cannot be completely blown into the centrifuge tube by blowing, and some peripheral blood is likely to remain on the inner wall of the capillary blood collection tube, resulting in errors in counting.

Utility model content

In order to solve the above-mentioned deficiencies in the prior art, the utility model provides a device for easily obtaining peripheral blood PLT counting solution, including

Microcentrifuge tube, the inside of which is used to hold diluent to dissolve peripheral blood;

A rubber stopper, plugged in the opening at the top of the microcentrifuge tube;

Capillary blood collection tube, pierced and fixed in the rubber stopper, for collecting peripheral blood;

The first movable cover is used to close and open the opening at the top of the microcentrifuge tube, and when the first movable cover closes the opening, the bottom of the capillary tube is at least located in the diluent in the microcentrifuge tube below the liquid level;

The drip port is located on the first movable cover, so that the diluted solution dissolved with peripheral blood can drip out.

In one embodiment, the first movable cover is also connected to the microcentrifuge tube through a connecting strip.

In one embodiment, a tear sheet for closing the drip opening is pasted on the drip opening.

In one embodiment, the drip opening is fixed with a second movable cover for closing the drip opening.

In one embodiment, the first movable cover is fastened with the opening by pressing and clamping, or the first movable cover is fixed with the opening by threaded connection.

In one embodiment, the second movable cover is fastened with the drip opening by pressing and clamping, or the second movable cover and the drip opening are fixed by threaded connection.

In one embodiment, the blood capillary tube is fixed in the rubber stopper through a sleeve.

In one embodiment, the diluent is a 1.1% oxalic acid plating diluent.

In one embodiment, the specification of the microcentrifuge tube is 1.5ml, and the specification of the capillary blood collection tube is 10ul.

In one embodiment, the number of capillary blood collection tubes is greater than or equal to 2.

Based on the above, compared with the prior art, the device for easily obtaining the peripheral blood PLT counting lysate provided by the utility model directly fixes the capillary blood collection tube with the microcentrifuge tube containing the diluent, and collects the capillary blood collection tube into The peripheral blood is fully dissolved into the diluent by shaking and shaking up and down, and then the diluted solution containing the peripheral blood is dropped into the counting board through the drip port for microscopic counting, which solves the problem that the peripheral blood is easily trapped in the capillary collection due to the blowing method. Residues on the inner wall of blood vessels lead to large counting errors.

Other features and beneficial effects of the utility model will be set forth in the following description, and partly become obvious from the description, or can be understood by implementing the utility model. The purpose and other beneficial effects of the utility model can be realized and obtained through the structures particularly pointed out in the specification, claims and accompanying drawings.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present utility model. For those skilled in the art, other drawings can also be obtained according to these drawings without creative work; the positions described in the drawings in the following description Relationships, unless otherwise specified, are based on the directions drawn by the components in the diagram.

Fig. 1 is the device schematic diagram one of the easy-to-acquire peripheral blood PLT counting lysate provided by the utility model;

Fig. 2 is a second schematic diagram of a device for easily obtaining peripheral blood PLT counting lysates provided by the present invention.

Fig. 3 is a structural schematic diagram of a drop opening with a tear piece.

Fig. 4 is a schematic structural view of the drip outlet with a second movable cover.

Fig. 5 is a schematic diagram of a capillary blood collection tube fixed in a rubber stopper through a sleeve.

reference sign

10 microcentrifuge tube 11 rubber stopper 12 blood capillary tube

13 First movable cover 14 Drip opening 15 Connecting strip

16 Tear piece 17 The second movable cover 18 Sleeve

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the utility model, rather than all embodiments; the technical features designed in the different implementations of the utility model described below can be combined with each other as long as they do not constitute conflicts; based on the utility model All other embodiments obtained by persons of ordinary skill in the art without creative efforts, all belong to the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that all terms (including technical terms and scientific terms) used in the present utility model have the same meanings as commonly understood by those of ordinary skill in the art to which the utility model belongs, and cannot It should be understood as a limitation of the present utility model; it should be further understood that the terms used in the present utility model should be understood as having meanings consistent with the meanings of these terms in the context of this description and in related fields, and should not be idealized or overly It should be understood in a formal sense, unless it is clearly defined in this utility model.

As shown in Figures 1 and 2, the utility model provides an embodiment of a device for easily obtaining peripheral blood PLT counting solution, including a microcentrifuge tube 10 and a capillary blood collection tube 12, and the capillary blood collection tube 12 is used to take peripheral blood , the inside of the microcentrifuge tube 10 is used to contain diluent to dissolve the peripheral blood in the capillary blood collection tube 12 . Exemplarily, the diluent is oxalic acid plating diluent with a mass fraction of 1.1%, the microcentrifuge tube 10 has a specification of 1.5ml, and the capillary blood collection tube 12 has a specification of 10u l. Of course, the parameters such as the above-mentioned concentration specifications are not limited to those listed above, and those skilled in the art can make adjustments according to actual needs.

A rubber stopper 11 is fixed in the opening at the top of the microcentrifuge tube 10 . The blood capillary tube 12 is pierced and fixed in the rubber stopper 11 .

It also includes a first movable cover 13, which is used to close and open the opening at the top of the microcentrifuge tube 10, so as to prevent the diluent in the microcentrifuge tube 10 from flowing out from the opening. Specifically, the first movable cover 13 and the opening can be fastened by pressing and snapping, or the first movable cover 13 and the opening can be fixed by threaded connection, and those skilled in the art can choose an appropriate combination method according to actual application requirements.

And when the first movable cover 13 closes the opening, the bottom of the capillary tube 12 must be at least below the liquid level of the diluent in the microcentrifuge tube 10, so that the peripheral blood in the capillary tube 12 dissolves in the diluent.

A drop port 14 is also provided on the first movable cover 13, so that the diluted solution dissolved with peripheral blood can drip out.

The specific operation method is to first use the capillary blood collection tube 12 to take peripheral blood; after the collection is completed, push the capillary blood collection tube 12 downward through the first movable cover 13 to the liquid level of the diluent in the microcentrifuge tube 10 at the bottom of the capillary blood collection tube 12 Next, the opening at the top of the microcentrifuge tube 10 is sealed by the first movable cover 13 . After that, fully dissolve the peripheral blood in the capillary blood collection tube 12 into the diluent by shaking the microcentrifuge tube 10 up and down, then open the first movable cover 13, pull out the rubber stopper 11, and pass through the first movable cover 13. The opening at the top of the microcentrifuge tube 10 is closed again. Finally, the microcentrifuge tube 10 is tilted upside down, so that the diluted solution dissolved with peripheral blood drops into the counting plate through the drop port 14 for microscopic counting.

It should be noted that, during the process of collecting peripheral blood, the bottom of the capillary blood collection tube 12 must be above the diluent liquid level in the microcentrifuge tube 10 , that is, it cannot be in contact with the diluent. After the peripheral blood is collected, the bottom of the capillary blood collection tube 12 filled with the peripheral blood is inserted below the diluent liquid level in the microcentrifuge tube 10 . During the up and down shaking process, the diluent will enter the capillary tube 12 along the bottom of the capillary tube 12, and can effectively impact the inner wall of the capillary tube 12 so that the peripheral blood can fully dissolve into the diluent. Certainly, the length of the capillary tube 12 immersed in the diluent is not as deep as possible. After testing, the length of the capillary tube 12 immersed in the diluent is 1/5 to 1/2 of the length of the capillary tube 12 itself. The effect is better.

The device fully dissolves the peripheral blood in the capillary blood collection tube into the diluent by shaking and oscillating up and down, which overcomes the existing problem that the peripheral blood tends to remain on the inner wall of the capillary blood collection tube due to the blowing method, resulting in large counting errors.

In one embodiment, with reference to Fig. 1 or Fig. 2, since the first movable cover 13 needs to be opened or closed many times during use, the first movable cover 13 and the microcentrifuge tube 10 are connected by the connecting bar 15, so that the first movable cover 13 can be connected A relatively fixed positional relationship is maintained between the first movable cover 13 and the microcentrifuge tube 10 to prevent the first movable cover 13 from being dropped or lost during use and affecting the operating efficiency.

In one embodiment, referring to FIG. 3 , a tear piece 16 for closing the drop opening 14 is pasted on the drip opening 14 , and the tear piece 16 can be torn off after the shaking up and down during use to make the drip opening 14 After the exposure is open, the microcentrifuge tube 10 is tilted upside down, so that the diluent dissolved with peripheral blood drops into the counting plate through the drop port 14 for microscopic counting. The drip opening 14 is sealed by pasting the tear sheet 16, which is more convenient to tear apart and prevents the drip opening 14 from being polluted and affecting the operation.

In another embodiment, referring to FIG. 4 , the drip opening 14 is fixed with a second movable cover 17 for closing and opening the drip opening 14. After the shaking up and down during use, the second movable cover 17 can be Open to expose the drop port 14, and then tilt the microcentrifuge tube 10 upside down, so that the diluted solution dissolved with peripheral blood drops into the counting plate through the drop port 14 for microscopic counting. Compared with the method of pasting the tear sheet 16, using the second movable cover 17 to seal the drip opening 14 can increase the firmness of the sealing of the drip opening 14, so as to avoid being easily torn apart, causing the drip opening 14 to be exposed to contamination and affect the operation.

Specifically, the second movable cover 17 is fastened with the drip opening 14 by pressing and snapping, or the second movable cover 17 and the drip opening 14 are fixed by threaded connection. Those skilled in the art can select a suitable combination method according to actual application requirements.

Preferably, referring to Fig. 5, the capillary blood collection tube 12 is fixed in the rubber stopper 11 through the sleeve tube 18, because the combination strength of the rubber stopper 11 and the top opening of the microcentrifuge tube 10 is often relatively large and difficult to pull out during use, and the capillary blood collection tube 12 is relatively slender, and it is more difficult to directly fix it in the rubber stopper 11. Therefore, the capillary tube 12 is pre-fixed in the sleeve tube 18 with a larger diameter, and then the sleeve tube 18 is fixed in the rubber stopper 11, which is easy to operate. The blood collection tube 12 is taken out from the rubber stopper 11, and the dripping operation is performed without pulling out the rubber stopper 11 again.

Preferably, the number of capillary blood collection tubes 12 is greater than or equal to 2. In the case of the same volume, the increase in the number of capillary blood collection tubes 12 can shorten the length of each capillary blood collection tube 12, which is conducive to the dilution of peripheral blood. fully dissolved in the solution.

In addition, those skilled in the art should understand that although there are many problems in the prior art, each embodiment or technical solution of the utility model can only be improved in one or several aspects, and it is not necessary to solve the problems in the prior art at the same time. Or all the technical problems listed in the background technology. It should be understood by those skilled in the art that anything that is not mentioned in a claim should not be taken as a limitation on the claim.

Although terms such as microcentrifuge tubes and flip caps are frequently used in this paper, the possibility of using other terms is not excluded. These terms are only used to describe and explain the essence of the utility model more conveniently; they are interpreted as any kind of additional restriction and all go against the spirit of the utility model; Specification and claims of the utility model embodiment The terms "first", "second", etc., if present, in the above figures and figures are used to distinguish similar objects and not necessarily to describe a specific order or sequence.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the various embodiments of the present invention Scope of technical solutions.

Claims (10)

1. A device for counting dissolving liquid in peripheral blood PLT which is simply obtained is characterized by comprising

A microcentrifuge tube (10) for containing a diluent therein to dissolve peripheral blood;

a rubber plug (11) is plugged in an opening at the top of the microcentrifuge tube (10);

a capillary blood collection tube (12) which is penetrated and fixed in the rubber plug (11) and is used for collecting peripheral blood;

the first movable cover (13) is used for closing and opening an opening at the top of the microcentrifuge tube (10), and when the first movable cover (13) closes the opening, the bottom of the capillary blood collection tube (12) is at least positioned below the liquid level of the diluent in the microcentrifuge tube (10);

and a drip port (14) which is positioned on the first movable cover (13) so as to drip out the diluent dissolved with the peripheral blood.

2. The apparatus for counting lysates of easily obtained peripheral blood PLTs according to claim 1, wherein: the first movable cover (13) is also connected with the microcentrifuge tube (10) through a connecting strip (15).

3. The apparatus for counting lysates of easily obtained peripheral blood PLTs according to claim 1, wherein: the drop (14) is stuck with a tearing piece (16) for closing the drop (14).

4. The apparatus for counting lysates of easily obtained peripheral blood PLTs according to claim 1, wherein: the drop (14) is fixed with a second movable cover (17) for closing the drop (14).

5. The apparatus for counting lysates of easily obtained peripheral blood PLTs according to claim 1, wherein: the first movable cover (13) is buckled with the opening in a pressing and clamping mode, or the first movable cover (13) is fixedly connected with the opening through threads.

6. The apparatus for counting lysates of easily obtained peripheral blood PLTs as recited in claim 4, wherein: the second movable cover (17) is buckled with the drop port (14) in a pressing and clamping mode, or the second movable cover (17) is fixedly connected with the drop port (14) through threads.

7. The apparatus for counting lysates of easily obtained peripheral blood PLTs according to claim 1, wherein: the capillary tube (12) is fixed in the rubber plug (11) through a sleeve (18).

8. The apparatus for counting lysates of easily obtained peripheral blood PLTs according to claim 1, wherein: the diluent is oxalic acid plating diluent with the mass fraction of 1.1%.

9. The apparatus for counting lysates of easily obtained peripheral blood PLTs according to claim 1, wherein: the size of the microcentrifuge tube (10) is 1.5ml, and the size of the capillary tube (12) is 10ul.

10. The apparatus for counting lysates of easily obtained peripheral blood PLTs according to claim 1, wherein: the number of the capillary blood collection tubes (12) is more than or equal to 2.