CN217040131U - Quantitative micro-sample suction capillary tube - Google Patents

Abstract

The utility model discloses a sample capillary is inhaled to ration trace, include: more than one sample sucking area, the shape of the sample sucking area is in a gradually reduced inverted cone shape, and a flat open sample sucking part is arranged on the sample sucking area; the depth of the sample sucking part is 3.7-4.7mm, and the width of the sample sucking part is 0.35-0.65 mm. The utility model discloses a material be transparent plastic PS material, can disposable, with low costs, convenient operation, safe and reliable, the sample suction volume degree of accuracy is high, sample suction volume good repeatability, sample suction volume at every turn is the same, sample suction speed is fast.

Description

Quantitative micro-sample suction capillary tube

Technical Field

The utility model relates to a capillary technical field, in particular to sample capillary is inhaled to ration trace.

Background

The sampling of medical staff generally refers to the sampling of whole blood and peripheral blood, and the traditional sample suction mode is as follows: syringes, pipette guns, sample suction guns, glass slides, etc. all rely on extraction and contact with blood for sampling, which is tedious in operation and high in cost. The capillary tube provided by the invention utilizes the cohesion and adhesion of the inner wall of the tube to overcome the self weight of liquid by surface tension, so as to achieve the purpose of sampling.

The sample sucking capillary tube commonly used in the current market is made of the following materials: the processing difficulty of the stainless steel capillary tube, the glass capillary tube and the stainless steel capillary tube is high, the cost is high, the glass capillary tube is fragile, the accuracy of the sample suction amount is low, the repeatability of the sample suction amount is poor, the sample suction amount is different every time, and the sample suction speed is low.

SUMMERY OF THE UTILITY MODEL

To the problem that prior art exists, the utility model provides a sample capillary is inhaled to ration trace.

In order to realize the purpose, the utility model discloses technical scheme as follows:

a quantitative microsuction capillary comprising: more than one sample suction area, the shape of the sample suction area is in a gradually reduced inverted cone shape, and a flat open sample suction part is arranged on the sample suction area; the depth of the sample suction part is 3.7-4.7mm, and the width is set to be 0.35-0.65 mm.

Preferably, the outer surface of the sample aspirating region is a hydrophobic surface, and the inner surface of the sample aspirating portion is a hydrophilic surface.

Preferably, the depth of the sample aspirating portion is set to 4.2mm, and the width is set to 0.5 mm.

Preferably, the number of the sample suction areas is 1, and the quantitative micro sample suction capillary further includes a first hand-held portion integrally formed with the sample suction areas.

Preferably, the first hand-held portion is a straight tube.

Preferably, the number of the sample sucking areas is 1, and the quantitative micro sample sucking capillary further comprises a first pipe body connected with the sample sucking areas and a second handheld part connected with the pipe body.

Preferably, a plurality of lines are arranged on the outer surface of the second holding part.

Preferably, the length of the second hand-held part is 1cm, and the width is 5.2 cm.

Preferably, the number of the sample sucking areas is 1, and the quantitative micro sample sucking capillary tube further comprises a second tube body and a piston rod, wherein one end of the piston rod is arranged in the second tube body and connected with the sample sucking areas.

Preferably, the number of the sample sucking areas is 2, and the quantitative micro sample sucking capillary further comprises a third handheld part; and two ends of the third handheld part are provided with easy-breaking parts, and two corresponding sample suction areas are arranged on the easy-breaking parts.

Adopt the technical scheme of the utility model, following beneficial effect has: the utility model discloses a material be transparent plastic PS material, can disposable, with low costs, convenient operation, safe and reliable, the sample suction volume degree of accuracy is high, sample suction volume good repeatability, sample suction volume at every turn is the same, sample suction speed is fast.

Drawings

FIG. 1 is a schematic view of a sampling area in this embodiment 1;

FIG. 2 is a schematic structural diagram of the present embodiment 2;

FIG. 3 is a schematic structural diagram of this embodiment 3;

FIG. 4 is a schematic structural diagram of this embodiment 4;

fig. 5 is a schematic structural diagram of fig. 5 in this embodiment 5.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "is connected to" the second feature

"under" may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact by another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

Example 1:

referring to fig. 1 to 2, the utility model provides a sample capillary is inhaled to ration trace, include: the sample suction area 1 is in a gradually reduced inverted cone shape, the sample suction part 100 in a flat opening shape is arranged, the contact area of the capillary tube and a human body is reduced due to the inverted cone shape, the contact or scraping to the surface of the human body is avoided, and the operation safety is greatly improved; the flat opening shape is beneficial to the blood or other liquid to be intensively and quickly sucked away in the middle area of the capillary, and each sampling is ensured to be successful; the depth of the sample sucking part is 3.7-4.7mm, the width is set to be 0.35-0.65 m, the preferred depth is 4.2mm, and the width is set to be 0.5mm, so that the surface tension is larger than the weight of a sample sucked every time, and the sample is quickly sucked up and filled in the whole sample sucking area; the outer surface of the sample sucking area 1 is set to be a hydrophobic surface E, so that the outer surface of the capillary tube is ensured not to be stained with blood after each sample sucking and not to pollute any other objects which may be contacted; the internal surface of the sample suction part 100 is set to be a hydrophilic surface F, so that the adsorption force on liquid is increased, and the accuracy and the rapid sample suction of the sample suction are ensured.

The quantitative micro sample suction capillary tube in the embodiment is made of transparent plastic PS material, and the production environment is a dust-free clean workshop.

Example 1:

in the embodiment 1, when the quantitative micro sample absorption capillary tube only has one sample absorption area 1, the operation of an injection molding mechanical arm can be adopted, the cleanness of the product is ensured, no pollution is caused, the cleaning is avoided, and the quantitative micro sample absorption capillary tube can be directly used.

Example 2:

referring to FIG. 2, the number of the sample aspirating regions 1 is 1, and the quantitative micro sample aspirating capillary further comprises a first holding part 3 integrated with the sample aspirating region 1; the first handheld part 3 has a straight tube body operation area as the shape of other metal capillaries and glass capillaries, but the sampling area is relatively short and accurate.

Example 3:

referring to fig. 3, the number of the sample sucking regions 1 is 1, and the quantitative micro sample sucking capillary further comprises a first tube 5 connected to the sample sucking region 1 and a second hand-held part 6 connected to the tube 5; the outer surface of the second handheld part 6 is provided with a plurality of grooves; the length and the width of the second handheld part 6 are 1mm and 5.2mm, the shape and the size of the second handheld part 6 are designed to be consistent with the shape of a hand of a person during operation, the operation is comfortable and convenient, the opening of the sample suction area is only required to be contacted with the blood of the person for sampling, and the whole process of medical staff is not contacted with the blood.

Example 4:

referring to fig. 4, the number of the sample sucking areas 1 is 1, and the quantitative micro sample sucking capillary tube further comprises a second tube body 8 and a piston rod 9, one end of which is arranged in the second tube body 8 and connected with the sample sucking areas 1; when the form of the piston rod 9 is adopted, after a sample is sucked, only slight downward pressing is needed, the sample sucking area 1 can completely fall into a reagent, a buffer solution or other containers, and the piston rod type capillary can enable the sample sucking area 1 of the capillary head to rotate or stir uniformly together with the reagent or the buffer solution, so that the capillary is convenient and practical.

Example 5:

referring to fig. 5, the number of the sample suction areas 1 is 2, and the quantitative micro sample suction capillary further includes a third hand-held portion 10; two ends of the third handheld part 10 are provided with a breakable part 20, and correspondingly, the two sample sucking areas 1 are arranged on the breakable part 20; the sample sucking device has the function of sucking two samples simultaneously, is easy to operate, is provided with the easily-broken parts 20 at two ends of the operating area of the third handheld part 10, can separate the two sample sucking areas 1 by only lightly exerting force, and can test two different samples or test two samples for the same person.

Can know by above-mentioned embodiment the utility model discloses capillary, ability disposable, it is with low costs, convenient operation, safe and reliable, the sample suction volume degree of accuracy is high, and sample suction volume good reproducibility, sample suction volume is the same at every turn, and sample suction speed is fast.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims (10)

1. A quantitative microsuction capillary, comprising: more than one sample suction area, the shape of the sample suction area is in a gradually reduced inverted cone shape, and a flat open sample suction part is arranged on the sample suction area; the depth of the sample sucking part is 3.7-4.7mm, and the width of the sample sucking part is 0.35-0.65 mm.

2. The capillary for quantitative microassay pipetting as recited in claim 1, wherein an outer surface of the pipetting region is provided with a hydrophobic surface and an inner surface of the pipetting module is provided with a hydrophilic surface.

3. The capillary for quantitative microassay pipetting as recited in claim 2, wherein the depth of the pipetting tip is set to 4.2mm and the width is set to 0.5 mm.

4. The capillary for quantitative microassay sampling according to claim 1, wherein the number of the sample-sucking regions is 1, and the capillary for quantitative microassay sampling further comprises a first hand-held portion integrally formed with the sample-sucking region.

5. The capillary for quantitative microassay pipetting as recited in claim 4, wherein the first hand-held portion is a straight tube.

6. The capillary for quantitative micro pipetting as recited in claim 1, wherein the number of the pipetting regions is 1, and the capillary further comprises a first tube connected to the pipetting region and a second hand-held portion connected to the tube.

7. The capillary for quantitative microabsorption as claimed in claim 6, wherein said second holding portion has a plurality of grooves formed on an outer surface thereof.

8. The capillary of claim 7, wherein the second handle has a length of 1cm and a width of 5.2 cm.

9. The capillary for quantitative micro-pipetting as recited in claim 1, wherein the number of pipetting steps is 1, and the capillary further comprises a second tube and a piston rod having one end disposed in the second tube and connected to the pipetting step.

10. The quantitative micro pipette according to claim 1, wherein the number of the pipette areas is 2, and the quantitative micro pipette further comprises a third hand-held part; and two ends of the third handheld part are provided with easy-breaking parts, and correspondingly, two sample suction areas are arranged on the easy-breaking parts.

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