Integrated self-suction type quantitative trace blood sampling suction tube

Abstract

An integrated self-suction type quantitative trace blood sampling suction pipe comprises an elastic air bag, a closed ring cap and a suction pipe. The suction tube is designed to be made of the plastic hydrophilic material, the blood can be automatically sucked when the suction tube is obliquely contacted with the blood, so that the blood can be automatically sucked through the suction tube, the liquid suction is convenient, and the liquid can be sucked without extruding the elastic air bag; the elastic air bag, the closed ring cap and the suction pipe are designed to be of an integrated fixing structure, in this way, multiple components do not need to be assembled in the using process, use convenience is improved, and structural connection stability is improved.

Description

Technical Field

[0001] The utility model relates to an integrated self-priming quantitative micro-blood sampling pipette. Background Art

[0002] The blood sampling straw is a medical device commonly used in hospitals to collect blood from patients. The existing blood sampling straw generally includes a rubber airbag cap 81, a plug 82, and a pipette 83. Figure 3 As shown, the rubber airbag cap 81 is a structure that is closed on the top and around and open at the bottom. A plug-in through hole is provided in the middle of the plug-in plug 82. The pipette 83 is generally made of slender glass material with openings at both ends. A plug-in plug 82 is movably plugged into the bottom of the rubber airbag cap 81, and then the upper end of the pipette 83 is inserted from the middle of the lower end of the plug-in plug 82, so that the entire suction structure of the pipette is realized. With the above structure, each time blood is sucked, the rubber airbag cap 81 needs to form a negative pressure before contacting the blood to be sucked. Once too much force is applied, the rubber airbag cap 81 and the pipette 83 will be filled with blood, which will cause squeezing and drainage in the later stage. In addition, since the rubber airbag cap 81, the plug-in plug 82 and the pipette 83 are all movable plug-in structures, they need to be plugged in and assembled each time, which is very cumbersome to use. Moreover, the pipette 83 is generally made of glass, which makes it easy for the pipette 83 to be damaged during plugging, which is very inconvenient to use. The movable plug-in connection between the rubber airbag cap 81 and the plug-in plug 82 is difficult to ensure the plug-in sealing of the rubber airbag cap and the plug-in plug, and the connection stability of the structure is poor. In addition, the rubber airbag cap is generally made of latex material, which is easy to age. Therefore, it is necessary to redesign the structure of the blood sampling pipette to improve the convenience of pipetting, the stability of the structure and the convenience of use. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the problem solved by the utility model is to provide an integrated self-priming quantitative micro-blood sampling pipette which is convenient for aspiration, has a stable structure and is easy to use.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is as follows:

[0005] An integrated self-priming quantitative micro-blood sampling straw comprises an elastic airbag, a closed ring cap and a suction tube; the lower end of the elastic airbag is connected to the closed ring cap; the upper end of the closed ring cap is connected to the lower end of the elastic airbag; the middle of the lower end of the closed ring cap is connected to the suction tube; the upper end of the suction tube is connected to the lower end of the closed ring cap; the elastic airbag, the closed ring cap and the suction tube are an integrated fixed structure; the suction tube is made of a plastic hydrophilic material; and a ventilation structure is provided on the blood sampling straw.

[0006] Furthermore, the ventilation structure is a top ventilation hole opened on one side of the upper part of the elastic airbag.

[0007] Furthermore, the ventilation structure is a lower ventilation hole opened on one side of the upper end of the suction pipe.

[0008] Furthermore, reinforcement strips are respectively provided on both sides of the upper part of the suction tube, and the upper ends of the reinforcement strips are respectively connected to the lower sides of the closed ring cap.

[0009] Furthermore, the closed ring cap is a flat structure with a hollow interior.

[0010] Furthermore, the elastic airbag has a structure with a closed top and surroundings and an open bottom.

[0011] The beneficial effects of the utility model are as follows:

[0012] The utility model designs the suction tube to be made of a plastic hydrophilic material, and the suction tube can be automatically sucked by tilting it to contact blood. In this way, blood can be automatically sucked through the suction tube, and liquid suction is convenient, and liquid can be sucked without squeezing the elastic airbag. The elastic airbag, the closed ring cap, and the suction tube are designed as an integrated fixed structure, so there is no need to assemble multiple parts during use, which improves the convenience of use and the stability of the structural connection.

[0013] The blood sampling straw of the present invention can be provided with ventilation structures in various positions. When a large amount of liquid is sucked, in order to prevent the liquid from dripping due to its heavy weight, the ventilation structure is a lower ventilation hole opened on one side of the upper end of the suction tube, so that the ventilation position is close to the suction tube, and the liquid stops being sucked when it reaches the lower ventilation hole; when a small amount of liquid is sucked, the ventilation structure is a top ventilation hole opened on one side of the upper part of the elastic airbag. The present invention is easy to use and can be selected according to actual conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the ventilation structure of the present invention being opened on one side of the upper part of the elastic airbag.

[0015] Figure 2 It is a structural schematic diagram of the ventilation structure of the present invention being opened on one side of the upper end of the suction pipe.

[0016] Figure 3 It is a structural schematic diagram of the prior art.

[0017] The reference numerals are: elastic airbag 1 , closed ring cap 2 , suction tube 3 , reinforcement strip 4 , top vent hole 11 , lower vent hole 31 . DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings. Example 1

[0019] like Figure 1As shown, an integrated self-priming quantitative micro-blood collection straw comprises an elastic airbag 1, a closed ring cap 2, and a suction tube 3; the lower end of the elastic airbag 1 is connected to the closed ring cap 2; the upper end of the closed ring cap 2 is connected to the lower end of the elastic airbag 1; the middle of the lower end of the closed ring cap 2 is connected to the suction tube 3; the upper end of the suction tube 3 is connected to the lower end of the closed ring cap 2; the elastic airbag 1, the closed ring cap 2, and the suction tube 3 are an integrated fixed structure; the suction tube 3 is made of a plastic hydrophilic material; and a ventilation structure is provided on the blood collection straw. Further, the ventilation structure is a top ventilation hole 11 opened on one side of the upper part of the elastic airbag 1; when the liquid to be sucked is small, the ventilation structure is generally a top ventilation hole 11 opened on one side of the upper part of the elastic airbag 1. Further, reinforcing strips 4 are respectively provided on both sides of the upper part of the suction tube 3, and the upper ends of the reinforcing strips 4 are respectively connected to the lower side of the closed ring cap 2. Further, the closed ring cap 2 is a flat body structure with a hollow interior. Furthermore, the elastic airbag 1 is of a structure with a closed top and surroundings and an open bottom. Example 2

[0020] like Figure 2 As shown, this embodiment refers to the embodiment 1, but the difference lies in the position of the ventilation structure, which is a lower ventilation hole 31 opened on one side of the upper end of the suction tube 3. When a large amount of liquid is sucked, generally more than 20 microliters, in order to prevent the liquid from dripping due to its heavy weight, the ventilation structure is a lower ventilation hole 31 opened on one side of the upper end of the suction tube 3, so that the ventilation position is close to the suction tube 3, improving the suction capacity of the suction tube 3, so that the liquid stops being sucked when it is sucked to the lower ventilation hole 31.

[0021] The utility model designs the suction tube 3 to be made of a plastic hydrophilic material, and the suction tube 3 can be automatically sucked by tilting it to contact blood. In this way, blood can be automatically sucked through the suction tube 3, and liquid suction is convenient, and liquid can be sucked without squeezing the elastic airbag 1; the elastic airbag 1, the closed ring cap 2, and the suction tube 3 are designed as an integrated fixed structure, so there is no need to assemble multiple parts during use, which improves the convenience of use and the stability of the structural connection.

[0022] The blood sampling straw of the present invention can be provided with ventilation structures in various positions. When a large amount of liquid is sucked, in order to prevent the liquid from dripping due to its heavy weight, the ventilation structure is a lower ventilation hole 31 opened on one side of the upper end of the suction tube 3, so that the ventilation position is close to the suction tube 3, and the liquid stops being sucked when it reaches the lower ventilation hole 31; when a small amount of liquid is sucked, the ventilation structure is a top ventilation hole 11 opened on one side of the upper part of the elastic airbag 1, so the utility model is easy to use and can be selected according to actual conditions.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated self-priming quantitative micro-blood sampling pipette, characterized in that: It includes an elastic airbag, a closed ring cap, and a suction tube; the lower end of the elastic airbag is connected to the closed ring cap; the upper end of the closed ring cap is connected to the lower end of the elastic airbag; the middle of the lower end of the closed ring cap is connected to the suction tube; the upper end of the suction tube is connected to the lower end of the closed ring cap; the elastic airbag, the closed ring cap, and the suction tube are an integrated fixed structure; the suction tube is made of plastic hydrophilic material; and a ventilation structure is provided on the blood collection suction tube.

2. The integrated self-priming quantitative micro-blood sampling pipette according to claim 1, characterized in that: The ventilation structure is a top ventilation hole opened on one side of the upper part of the elastic airbag.

3. The integrated self-priming quantitative micro-blood sampling pipette according to claim 1, characterized in that: The ventilation structure is a lower ventilation hole opened on one side of the upper end of the suction pipe.

4. The integrated self-priming quantitative micro-blood sampling tube according to claim 1, characterized in that: Reinforcement strips are respectively arranged on both sides of the upper part of the suction tube, and the upper ends of the reinforcement strips are respectively connected to the lower sides of the closed ring cap.

5. The integrated self-priming quantitative micro-blood sampling pipette according to claim 1, characterized in that: The closed ring cap is a flat structure with a hollow interior.

6. The integrated self-priming quantitative micro-blood sampling pipette according to claim 1, characterized in that: The elastic airbag is in a structure with a closed upper end and surrounding areas and an open bottom.

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