CN214965678U

CN214965678U - Practical whole blood changes plasma sample suction tube

Info

Publication number: CN214965678U
Application number: CN202121750294.1U
Authority: CN
Inventors: 赵宏祥; 马荣华
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2021-12-03
Anticipated expiration: 2031-07-29

Abstract

The utility model belongs to the technical field of medical equipment, in particular to a practical whole blood plasma transferring sample suction tube, which comprises a suction tube head, a filtering device and a suction tube, wherein a handle is pulled manually to drive a piston to move in the suction tube, so that blood to be sampled is drawn into the suction tube head, blood anticoagulant is coated on the inner wall of the suction tube head to inhibit blood coagulation factors in the blood and prevent blood coagulation, the blood continues to pass through the inside of the filtering device, a filter membrane is arranged in the inner ring, the plasma can pass through the filter membrane and be prevented from red blood cells, thereby realizing automatic separation of the plasma in the whole blood drawing process, being fast, simple and effective, and direct, finally, the separated plasma flows out from the inside of the sampling tube, a worker can collect the plasma to detect the plasma, the suction tube head is communicated with the suction tube through the filtering device, and the disassembly and the connection are convenient, is convenient for cleaning or replacing the filter membrane, and is convenient for smearing anticoagulant on the inner wall of the suction pipe head, and is convenient for use.

Description

Practical whole blood changes plasma sample suction tube

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to practical whole blood changes plasma and inhales appearance pipe.

Background

Fresh blood is centrifuged to remove the visible blood component in the blood, and the remaining light yellow transparent liquid is plasma. The blood plasma accounts for about 55% of whole blood, contains various substances, most of which is water and accounts for 91% -92%, and the rest of which is blood plasma protein and accounts for 60-75 g/L, wherein the blood plasma serum protein accounts for 40-55 g/L at most, the blood plasma globulin accounts for 20-30 g/L, and the fibrinogen accounts for 0.2-0.4 g/L. It also contains small amount of inorganic salts such as sodium, potassium, calcium, iron, magnesium, etc., and other organic substances such as glucose, various lipids, vitamins, enzymes, hormones, etc., and there are so many substances in blood plasma that their components and physicochemical properties are relatively stable, thus ensuring relatively constant tissue fluid in vivo. The function of plasma is mainly to transport nutrients to tissue cells, and after the plasma transports nutrients absorbed from small intestine to muscles and cells of the body, the plasma sends waste generated in the body to the kidney, and the waste is changed into urine by the kidney and is discharged out of the body. The blood plasma contains a plurality of proteins with functions of various types, and the serum proteins in the blood plasma have the functions of maintaining blood volume, blood pressure and intravascular colloid osmotic pressure. Globulin in blood plasma has the functions of raising immunity of human body and preventing some infectious diseases, and blood coagulation factor in blood plasma has hemostatic effect.

However, the existing whole blood-to-plasma sample suction tube cannot directly and rapidly separate plasma, and the process is complicated, so that the use is influenced.

SUMMERY OF THE UTILITY MODEL

For solving the problem that proposes among the above-mentioned background art, the utility model provides a practical whole blood changes plasma suction tube has can the quickly separating plasma, convenient to use's characteristics.

In order to achieve the above object, the utility model provides a following technical scheme: a practical whole blood plasma transferring sample suction tube, which comprises a tube head, a filtering device and a suction tube, wherein the filtering device comprises an inner ring and an outer ring, the inner ring is inserted in the outer ring, a ring groove is formed between the outer wall of the inner ring and the inner wall of the outer ring, a plurality of fixing bars which are uniformly distributed are arranged inside the ring groove, the inner ring and the outer ring are fixedly connected through the plurality of fixing bars, a filter membrane is arranged inside the inner ring, a blood anticoagulant is smeared on the inner wall of the pipette head, a piston is arranged inside the pipette, the outer wall of the piston is tightly attached to the inner wall of the suction pipe, the right end face of the piston is fixedly connected with a pull handle, the left side of the outer wall of the suction pipe is communicated with a sampling pipe, the right end of the suction pipe head is inserted in the left side of the inner part of the annular groove, the left end of the straw is inserted into the right side in the annular groove, and the straw head is communicated with the straw through the filtering device.

In order to facilitate the collection of human blood, as the utility model relates to a practical whole blood plasma transfer suction tube is preferred, the left side intercommunication of pipette head has the syringe needle.

In order to make the right-hand member of pipette head and the left end of straw peg graft in the inside of annular, convenient to detach and connection, as the utility model relates to a practical whole blood commentaries on classics plasma sample suction pipe is preferred, the right port wall thickness of pipette head and the left port wall thickness of straw all are less than the ring width of annular.

In order to draw blood, according to the scale marking confirm the dosage, as the utility model relates to a practical whole blood commentaries on classics plasma suction pipe is preferred, the outer wall of straw is provided with the scale marking.

In order to inhibit blood coagulation factors in blood and prevent blood coagulation, the utility model discloses a practical whole blood plasma transfer pipette is preferred, the blood anticoagulant is heparin sodium or EDTA-K2 EDTA-K2.

In order to facilitate the staff to take a sample to blood, as the utility model relates to a practical whole blood commentaries on classics plasma suction appearance pipe is preferred, the bottom threaded connection of sampling tube has sealed lid.

Compared with the prior art, the beneficial effects of the utility model are that:

firstly, a needle head is inserted into blood to be sampled, then a drawing handle is pulled manually to drive a piston to move in a suction pipe, air in the suction pipe is drawn, the pressure inside the suction pipe is smaller than the external atmospheric pressure, the blood to be sampled is drawn into the suction pipe head, a blood anticoagulant is coated on the inner wall of the suction pipe head to inhibit blood coagulation factors in the blood, the blood is prevented from coagulating, the blood continues to pass through the inside of a filtering device, a filter membrane is arranged inside an inner ring, the blood plasma can pass through the filter membrane and be blocked by red blood cells, so that the automatic separation of the blood plasma can be realized in the whole blood drawing process, the operation is rapid, simple and effective, the separated blood plasma flows out from the inside of a sampling pipe, a worker can collect and detect the blood plasma, the right end of the suction pipe head is inserted into the left side inside of a ring groove, and the left side of the suction pipe is inserted into the left side inside the ring groove, the straw head is communicated with the straw through the filtering device, is convenient to detach and connect, is convenient to clean or replace the filter membrane, and is convenient to paint anticoagulant and convenient to use on the inner wall of the straw head.

In conclusion, the practical whole blood-to-plasma sample suction tube has the characteristics of rapid separation of plasma and convenient use.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is an exploded view of the present invention;

FIG. 2 is an overall three-dimensional structure diagram of the present invention;

FIG. 3 is an enlarged schematic view of a part of the structure of the present invention;

in the figure, 1, a pipette tip; 2. a filtration device; 3. a straw; 4. an inner ring; 5. an outer ring; 6. a ring groove; 7. a fixed bar; 8. filtering the membrane; 9. blood anticoagulant; 10. a piston; 11. pulling out the handle; 12. a sampling tube; 13. a needle head; 14. scale marking; 15. and (7) sealing the cover.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-3, the present invention provides the following technical solutions: a practical whole blood plasma transferring sample suction tube, which comprises a tube head 1, filter equipment 2 and straw 3, filter equipment 2 includes inner ring 4 and outer loop 5, inner ring 4 is pegged graft in the inside of outer loop 5, form annular 6 between the outer wall of inner ring 4 and the inner wall of outer loop 5, the inside of annular 6 is provided with a plurality of evenly distributed's fixed bar 7, inner ring 4 and outer loop 5 are through a plurality of fixed bar 7 fixed connection, the inside of inner ring 4 is provided with filter membrane 8, the inner wall of straw head 1 is paintd with blood anticoagulant 9, the inside of straw 3 is provided with piston 10, the outer wall of piston 10 closely laminates with the inner wall of straw 3, the right-hand member face fixedly connected with pump handle 11 of piston 10, the outer wall left side intercommunication of straw 3 has sampling tube 12, the right-hand member of straw head 1 is pegged graft in the inside left side of annular 6, the left end of straw 3 is pegged graft in the inside left and right sides of annular 6, straw head 1 communicates with straw 3 through filter equipment 2.

In this embodiment: through manually pulling the drawing handle 11, the piston 10 is driven to move in the suction tube 3, air in the suction tube 3 is drawn, the pressure in the suction tube 3 is smaller than the external atmospheric pressure, blood to be sampled is drawn into the suction tube head 1, blood anticoagulant 9 is coated on the inner wall of the suction tube head 1 to inhibit blood coagulation factors in the blood, blood coagulation is prevented, the blood continues to pass through the inside of the filtering device 2, the filter membrane 8 is arranged in the inner ring 4, the blood plasma can pass through the filter membrane 8 and be blocked by red blood cells, automatic separation of the blood plasma can be realized in the whole blood drawing process, the blood plasma can be quickly, simply, effectively and directly separated, finally, the separated blood plasma flows out from the inside of the sampling tube 12, a worker can collect and detect the blood plasma, the right end of the suction tube head 1 is inserted into the left side of the inside of the annular groove 6, the left side of the suction tube 3 is inserted into the left side of the inside of the annular groove 6, the straw head 1 is communicated with the straw 3 through the filtering device 2, is convenient to detach and connect, is convenient to clean or replace the filter membrane 8, and is convenient to paint anticoagulant and convenient to use on the inner wall of the straw head 1.

As a technical optimization scheme of the utility model, the left side of the straw head 1 is communicated with a needle head 13.

In this embodiment: through the arrangement of the needle head 13, a worker can conveniently extract a blood sample from a human blood vessel.

As a technical optimization scheme of the utility model, the right port wall thickness of straw head 1 and the left port wall thickness of straw 3 all are less than the ring width of annular 6.

In this embodiment: the right end of the pipette head 1 and the left end of the pipette 3 are respectively inserted into the annular groove 6, so that the pipette is convenient to detach, connect and use.

As a technical optimization scheme of the utility model, the outer wall of straw 3 is provided with scale mark 14.

In this embodiment: through the arrangement of the scale markings 14, the staff can conveniently determine the dosage according to the scale markings 14 when drawing blood.

As a technical optimization scheme of the utility model, the blood anticoagulant 9 is heparin sodium or EDTA-K2 EDTA-K2.

In this embodiment: the heparin sodium and EDTA-K2EDTA-K2 have good inhibitory effect on blood coagulation factors in blood, and can prevent blood coagulation.

As a technical optimization scheme of the utility model, the bottom threaded connection of sampling tube 12 has sealed lid 15.

In this embodiment: the sealing cover 15 can control the blood flowing out from the inner part of the sampling tube 12, so that the staff can sample the blood conveniently.

The utility model discloses a theory of operation and use flow: firstly, a needle 13 is inserted into blood to be sampled, then a drawing handle 11 is pulled manually to drive a piston 10 to move in the suction tube 3, air in the suction tube 3 is extracted, the pressure in the suction tube 3 is smaller than the external atmospheric pressure, the blood to be sampled is extracted into a suction tube head 1, a blood anticoagulant 9 is coated on the inner wall of the suction tube head 1 to inhibit blood coagulation factors in the blood and prevent the blood from coagulating, the blood continuously passes through the inside of a filtering device 2, a filter membrane 8 is arranged in an inner ring 4, the blood plasma can be stopped by the filter membrane 8 and red blood cells, automatic separation of the blood plasma can be realized in the whole blood extraction process, the blood plasma is rapid, simple and effective, direct, finally, the separated blood plasma flows out from the inside of a sampling tube 12, a worker can collect the blood plasma to detect the blood plasma, and the right end of the suction tube head 1 is inserted into the left side of an annular groove 6, the left side of straw 3 is pegged graft in the inside left side of annular 6, and straw head 1 passes through

filter equipment

2 and 3 intercommunications of straw, dismantles and connects conveniently, is convenient for clear up or change filter membrane 8, is convenient for paint the anticoagulant in the inner wall of straw head 1 moreover, convenient to use.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a practical whole blood commentaries on classics plasma appearance of inhaling pipe, includes pipette head (1), filter equipment (2) and straw (3), its characterized in that: the filtering device (2) comprises an inner ring (4) and an outer ring (5), the inner ring (4) is inserted into the outer ring (5), an annular groove (6) is formed between the outer wall of the inner ring (4) and the inner wall of the outer ring (5), a plurality of uniformly distributed fixing bars (7) are arranged inside the annular groove (6), the inner ring (4) and the outer ring (5) are fixedly connected through the fixing bars (7), a filter membrane (8) is arranged inside the inner ring (4), a blood anticoagulant (9) is smeared on the inner wall of the straw head (1), a piston (10) is arranged inside the straw (3), the outer wall of the piston (10) is tightly attached to the inner wall of the straw (3), a pumping handle (11) is fixedly connected to the right end face of the piston (10), a sampling tube (12) is communicated with the left side of the outer wall of the straw (3), and the right end of the straw head (1) is inserted into the left side of the inner portion of the annular groove (6), the left end of the straw (3) is inserted into the right side of the inner part of the annular groove (6), and the straw head (1) is communicated with the straw (3) through the filtering device (2).

2. A practical whole blood transplasmatic aspiration tube according to claim 1, wherein: the left side of the pipette head (1) is communicated with a needle (13).

3. A practical whole blood transplasmatic aspiration tube according to claim 1, wherein: the wall thickness of the right port of the pipette head (1) and the wall thickness of the left port of the pipette (3) are both smaller than the ring width of the ring groove (6).

4. A practical whole blood transplasmatic aspiration tube according to claim 1, wherein: the outer wall of the suction pipe (3) is provided with scale marks (14).

5. A practical whole blood transplasmatic aspiration tube according to claim 1, wherein: the blood anticoagulant (9) is heparin sodium or EDTA-K2 EDTA-K2.

6. A practical whole blood transplasmatic aspiration tube according to claim 1, wherein: the bottom end of the sampling tube (12) is connected with a sealing cover (15) in a threaded manner.