CN112155573A

CN112155573A - Disposable blood collection tube with built-in blood collection needle

Info

Publication number: CN112155573A
Application number: CN202010944961.3A
Authority: CN
Inventors: 缪从德
Original assignee: Guizhou Tiandi Medical Devices Co ltd
Current assignee: Guizhou Tiandi Medical Devices Co ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-01-01

Abstract

The invention relates to the technical field of blood collection tubes, in particular to a disposable blood collection tube with a built-in blood collection needle, which comprises a blood collection tube and a blood collection mechanism arranged in the blood collection tube, wherein the blood collection mechanism comprises an outer sleeve arranged in the blood collection tube, a connecting slide block matched with a through groove in size is fixed at the edge of the top end of the outer sleeve, the connecting slide block is matched with a tube cover in a sleeved mode through the through groove, a convex cover is integrally formed and fixed at the top end of the connecting slide block, an inner sleeve is arranged in a tube body of the outer sleeve, the blood collection needle is fixed in the tube body of the, the outer sleeve, the inner sleeve and the blood taking needle connected with the convex cover are taken out by poking the convex cover to take blood, so that the problem that the existing blood taking tube and the blood taking needle are separately placed is effectively solved, when in use, the used blood taking needle is easy to mix, and the blood taking needle is used for the second time, which causes the problem of cross infection of the blood-taken person.

Description

Disposable blood collection tube with built-in blood collection needle

Technical Field

The invention relates to the technical field of blood collection tubes, in particular to a disposable blood collection tube with a built-in blood collection needle.

Background

The blood sampling tube is mainly used for collecting and storing blood samples, the blood sampling tube is mostly a disposable vacuum blood sampling tube at present, the vacuum blood sampling tube is a vacuum negative pressure blood sampling tube, the great use of an automatic instrument and the storage of blood have higher requirements on the stability of original properties of blood samples, so that the vacuum blood sampling technology breaks through the requirement of safety only, and the performance indexes of the accuracy, the original properties of the samples, the maintenance time, the matching of a tube machine, the strength of a test tube and the like can be used as the basis for evaluating the quality of the vacuum blood sampling tube; the existing blood collection tube and the blood collection needle are separately placed, the used blood collection needle is easily mixed when the blood collection tube and the blood collection needle are used, the blood collection needle is secondarily used, cross infection of a blood-collected person is caused, and the naked needle head on the blood collection needle is easy to prick the hand of a medical worker, so that an accident is caused. In view of this, we propose a disposable blood collection tube with a built-in blood collection needle.

Disclosure of Invention

The present invention is directed to a disposable blood collection tube with a built-in blood collection needle to solve the above problems of the related art.

In order to achieve the purpose, the invention provides the following technical scheme:

a disposable blood collection tube with a built-in blood collection needle comprises a blood collection tube and a blood collection mechanism arranged inside the blood collection tube, wherein a tube cover is fixed at the top end of the blood collection tube, a through groove is formed in the tube cover, the blood collection mechanism comprises an outer sleeve arranged inside the blood collection tube, a connecting slider matched with the through groove in size is fixed at the edge of the top end of the outer sleeve, the connecting slider is in sleeve fit with the tube cover through the through groove, a convex cover is fixed at the top end of the connecting slider in an integrated forming mode, an inner sleeve is arranged in a tube body of the outer sleeve, the blood collection needle is fixed in the tube body of the inner sleeve, the blood collection needle comprises a needle tube, an installation block is fixed at the top end of the needle tube, a sliding tube is fixedly installed at the bottom end of the installation block, a sliding plate is connected to the, the inside of slide pipe is equipped with back the liquid pipe, the top of returning the liquid pipe and the lower bottom surface fixed connection of installation piece, the below of returning the liquid pipe is equipped with the spring, the bottom of returning the liquid pipe is connected with the dead lever, the dead lever is kept away from the one end of returning the liquid pipe is passed the vertical downwardly extending of slide, the below of slide is connected with the briquetting, the briquetting with the body of rod zonulae occludens of dead lever, just the below of briquetting is equipped with the kicking block, the kicking block is in sliding connection on the dead lever.

Preferably, a needle is integrally formed at the tip of the needle tube.

Preferably, the bottom end of the inner sleeve is provided with a second through hole.

Preferably, the bottom end of the outer sleeve is provided with a first through hole which has the same size as the second through hole and is positioned on the same straight line.

Preferably, the top end of the convex cover is sleeved and matched with a sheath.

Preferably, a rubber plug block is bonded in the top end of the sheath, and a positioning groove is formed in the rubber plug block.

Preferably, one end of the spring is tightly adhered to the lower bottom surface of the liquid return pipe, and the other end of the spring is tightly adhered to the top end surface of the sliding plate.

Preferably, the slide pipe and the liquid return pipe are both hollow hard plastic transparent pipe structures.

Preferably, the tip of the needle is sharp.

Preferably, the outer wall of the blood collection tube is carved with scale sizes.

Compared with the prior art, the invention has the beneficial effects that: the disposable blood taking tube with the built-in blood taking needle fixes the blood taking needle in the blood taking tube, and the outer sleeve, the inner sleeve and the blood taking needle which are connected with the convex cover are taken out by stirring the convex cover to take blood, so that the problem that the used blood taking needle is easily mixed when the existing blood taking tube and the blood taking needle are separately placed, the blood taking needle is used for the second time, and the cross infection of a blood taker is caused is effectively solved; after pricking the syringe needle on needle tubing top into by the person's epidermis tissue of taking a blood sample, the pulling slide makes slide tube and return the liquid pipe and produce suction, to being taken a blood sample by the person who takes a blood sample, aim at the syringe needle after the collection intraductally with gathering, push down the kicking block, return the intraductal blood of gathering of liquid and can enter into the intraductal storage of taking a blood sample, simple structure, convenient to use.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the blood collection tube of the present invention;

FIG. 3 is a schematic structural view of a blood collection mechanism according to the present invention;

FIG. 4 is a schematic view showing a construction of the lancet of the present invention;

fig. 5 is a schematic view of the structure of the sheath of the present invention.

In the figure: 1. a blood collection tube; 11. a tube cover; 111. a through groove; 12. scale sizes; 2. a blood collection mechanism; 21. an outer sleeve; 211. a first through hole; 22. an inner sleeve; 221. a second through hole; 23. a blood collection needle; 231. a needle tube; 2311. a needle head; 232. mounting blocks; 233. a slide pipe; 234. a slide plate; 235. briquetting; 236. a spring; 237. fixing the rod; 2371. a top block; 238. a liquid return pipe; 24. a convex cover; 241. connecting the sliding block; 25. a sheath; 251. a rubber stopper; 2511. a positioning groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of 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 and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered 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 defined otherwise.

Referring to fig. 1-5, the present invention provides a technical solution:

a disposable blood collection tube with a built-in blood collection needle comprises a blood collection tube 1 and a blood collection mechanism 2 arranged inside the blood collection tube 1, wherein a tube cover 11 is fixed at the top end of the blood collection tube 1, a through groove 111 is formed inside the tube cover 11, the blood collection mechanism 2 comprises an outer tube 21 arranged inside the blood collection tube 1, a connecting slider 241 matched with the through groove 111 in size is fixed at the edge of the top end of the outer tube 21, the connecting slider 241 is in sleeve fit with the tube cover 11 through the through groove 111, a convex cover 24 is fixed at the top end of the connecting slider 241 in an integrated forming mode, an inner tube 22 is arranged inside a tube body of the outer tube 21, a blood collection needle 23 is fixed inside the tube body 22, the blood collection needle 23 comprises a needle tube 231, a mounting block 232 is fixed at the top end of the needle tube 231, a sliding tube 233 is fixedly mounted at the bottom end of the mounting block 232, a sliding plate 234 is connected at the, the top end of the liquid return pipe 238 is fixedly connected with the lower bottom surface of the mounting block 232, a spring 236 is arranged below the liquid return pipe 238, the bottom end of the liquid return pipe 238 is connected with a fixing rod 237, one end of the fixing rod 237 far away from the liquid return pipe 238 penetrates through the sliding plate 234 to vertically extend downwards, a pressing block 235 is connected below the sliding plate 234, the pressing block 235 is tightly connected with the rod body of the fixing rod 237, a top block 2371 is arranged below the pressing block 235, and the top block 2371 is connected on the fixing rod 237 in a sliding manner.

In the present embodiment, a needle 2311 is integrally formed at the tip of the needle tube 231 to facilitate puncturing of the epidermal tissue of the blood-sampled subject for blood sampling.

Further, the bottom end of the inner tube 22 is provided with a second through hole 221 for allowing the drawn blood to flow into the blood collection tube 1 and be collected.

Furthermore, the bottom end of the outer sleeve 21 is provided with a first through hole 211 which has the same size as the second through hole 221 and is positioned on the same straight line, so that the blood in the inner sleeve 22 can enter the outer sleeve 21 conveniently.

In this embodiment, the top end of the convex cover 24 is fitted with a sheath 25, and the sheath 25 fixes the needle 2311 inside, preventing the sharp needle 2311 from pricking the hand of the medical staff.

Specifically, a rubber stopper 251 is bonded in the top end of the sheath 25, and a positioning groove 2511 is formed in the rubber stopper 251, so that the tip of the needle 2311 is conveniently fixed in the rubber stopper 251, and medical personnel is prevented from being stabbed and accidents are avoided.

Further, one end of the spring 236 is tightly adhered to the lower bottom surface of the liquid return pipe 238, and the other end is tightly adhered to the top end surface of the slide plate 234, so that the installation of the device is more stable by the elastic action of the spring 236.

It should be noted that the sliding tube 233 and the liquid return tube 238 are both hollow hard plastic transparent tube structures, so that the medical staff can see the amount of blood drawn out from the tube during blood collection.

It should be noted that the tip of the needle 2311 is sharp, which facilitates the penetration of the epidermis tissue of the blood-sampled person.

In addition, the outer wall of the blood collection tube 1 is carved with scale sizes 12, which is convenient for observing the volume of the collected blood.

When the disposable blood collection tube with a built-in blood collection needle of the present embodiment is used, a medical staff holds the convex cover 24 and takes it out of the tube cover 11 at the top end of the blood collection tube 1, takes the sheath 25 out of the convex cover 24, takes out the blood collection needle 23 in the inner tube 22 and puts the convex cover 24 back into the blood collection tube 1, the medical staff holds the blood collection needle 23 and pricks the needle 2311 at the top end of the blood collection needle 23 into the epidermis tissue of the blood-sampled person, exerts a force upwards on the sliding plate 234 to generate a suction force on the sliding tube 233 and the liquid return tube 238, collects the blood from the blood-sampled by the blood-sampled person, aligns the needle 2311 in the collection tube 1, presses the top block 2371 downwards, the top block 2371 presses the sliding plate 234 to slide on the sliding tube 233, the blood collected in the liquid return tube 238 enters the inner tube 22 through the needle 2371, then flows into the outer tube 21 from the second through hole 221 at the bottom end of the inner tube 22, and then falls into the blood collection tube, meanwhile, the scale size 12 on the surface of the blood collection tube 1 can observe the volume of the collected blood, and the sheath 25 is covered on the convex cover 24 after storage, so that the infection of the internal blood and the outside can be prevented.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a disposable blood collection tube of built-in blood taking needle, is in including blood collection tube (1) and setting blood sampling mechanism (2) inside blood collection tube (1), its characterized in that: the top of heparin tube (1) is fixed with tube cap (11), logical groove (111) have been seted up to the inside of tube cap (11), blood sampling mechanism (2) are including setting up outer tube (21) inside heparin tube (1), the top edge of outer tube (21) be fixed with link block (241) that leads to logical groove (111) size looks adaptation, link block (241) with tube cap (11) cup joints the cooperation through leading to groove (111), the top integrated into one piece of link block (241) is fixed with convex cover (24), interior sleeve pipe (22) is provided with in the body of outer tube (21), be fixed with blood taking needle (23) in the body of interior sleeve pipe (22), blood taking needle (23) include needle tubing (231), the top of needle tubing (231) is fixed with installation piece (232), the bottom fixed mounting of installation piece (232) has slide tube (233), the other end of slide pipe (233) is connected with slide plate (234), slide plate (234) are in sliding connection on slide pipe (233), the inside of slide pipe (233) is equipped with liquid return pipe (238), the top of liquid return pipe (238) and the lower bottom surface fixed connection of installation piece (232), the below of liquid return pipe (238) is equipped with spring (236), the bottom of liquid return pipe (238) is connected with dead lever (237), dead lever (237) are kept away from the one end of liquid return pipe (238) is passed the vertical downwardly extending of slide plate (234), the below of slide plate (234) is connected with briquetting (235), briquetting (235) with the body of rod zonulae occludens of dead lever (237), just the below of briquetting (235) is equipped with kicking block (2371), kicking block (2371) are in sliding connection on dead lever (237).

2. The disposable blood collection tube with a built-in blood collection needle according to claim 1, wherein: the top end of the needle tube (231) is integrally formed with a needle head (2311).

3. The disposable blood collection tube with a built-in blood collection needle according to claim 1, wherein: the bottom end of the inner sleeve (22) is provided with a second through hole (221).

4. A disposable blood collection needle-equipped cartridge according to claim 3, wherein: the bottom end of the outer sleeve (21) is provided with a first through hole (211) which has the same size as the second through hole (221) and is positioned on the same straight line.

5. The disposable blood collection tube with a built-in blood collection needle according to claim 1, wherein: the top end of the convex cover (24) is sleeved and matched with a sheath (25).

6. The disposable blood collection needle-indwelling blood collection tube according to claim 5, wherein: a rubber plug block (251) is bonded in the top end of the sheath (25), and a positioning groove (2511) is formed in the rubber plug block (251).

7. The disposable blood collection tube with a built-in blood collection needle according to claim 1, wherein: one end of the spring (236) is tightly adhered to the lower bottom surface of the liquid return pipe (238), and the other end is tightly adhered to the top end surface of the sliding plate (234).

8. The disposable blood collection tube with a built-in blood collection needle according to claim 1, wherein: the sliding pipe (233) and the liquid return pipe (238) are both hollow hard plastic transparent pipe structures.

9. The disposable blood collection needle-indwelling blood collection tube according to claim 2, wherein: the top end of the needle head (2311) is sharp.

10. The disposable blood collection tube with a built-in blood collection needle according to claim 1, wherein: the outer wall of the blood collection tube (1) is carved with scale sizes (12).