CN217365878U - Vacuum blood collection tube - Google Patents
Vacuum blood collection tube Download PDFInfo
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- CN217365878U CN217365878U CN202123383561.9U CN202123383561U CN217365878U CN 217365878 U CN217365878 U CN 217365878U CN 202123383561 U CN202123383561 U CN 202123383561U CN 217365878 U CN217365878 U CN 217365878U
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Abstract
The utility model provides a vacuum blood collection tube, which comprises a tube body, a tube cover and an easily-broken connecting piece, wherein the tube cover comprises a top cover, a first sealing section, a thread section and a second sealing section which are sequentially arranged from the top to the bottom; the second sealing section comprises a circumferential sealing ring and a pair of flexible sealing plugs positioned at the bottom ends, the pair of flexible sealing plugs are integrally arranged into a conical structure with a narrow bottom and a wide top, a gap is reserved between the pair of flexible sealing plugs, and a section of conical hole section is arranged in the pipe body corresponding to the flexible sealing plugs; the periphery of body is connected in the periphery of tube cap through the connecting piece that easily bursts, and the back is preced with to the tube cap precession, and the connecting piece that easily bursts damages, a pair of flexible sealing plug shutoff body under the effect of taper hole section. The blood collection tube has the advantages of better sealing performance after blood collection and avoiding the blood at the tube cover from being leached.
Description
Technical Field
The utility model relates to a medical blood sampling equipment, specific theory has related to a vacuum test tube.
Background
The heparin tube is the blood sampling equipment that the hospital is commonly used, and along with the development of science and technology, the vacuum test tube is widely used, and its advantage lies in: the inside negative pressure of taking certainly of vacuous heparin tube, when taking a blood sample, only need pass through the blood taking needle with people's vein and heparin tube and be linked together, will inhale the heparin tube with blood under the effect of negative pressure, need not extra action.
However, in order to prepare such a blood collection tube, it is necessary to have a sufficiently good sealing effect, and when a medical worker inserts a needle, the force is applied too much by improper operation, which may cause an excessively large opening of the sealing cap or a bias force to cause a seam in the sealing structure around the sealing cap, and blood may flow out from the seam after the blood collection tube is poured.
In order to solve the above problems, people are always seeking an ideal technical solution.
Disclosure of Invention
The utility model aims at the not enough of prior art to a leakproofness is better, avoid the vacuum test tube that the blood of tube cap department leached.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a vacuum blood collection tube comprises a tube body, a tube cover and an easily-broken connecting piece, wherein the tube cover comprises a top cover, a first sealing section, a thread section and a second sealing section which are sequentially arranged from the top to the bottom;
the second sealing section comprises a circumferential sealing ring and a pair of flexible sealing plugs positioned at the bottom ends, the pair of flexible sealing plugs are integrally arranged into a conical structure with a narrow bottom and a wide top, a gap is reserved between the pair of flexible sealing plugs, and a section of conical hole section is arranged in the pipe body corresponding to the flexible sealing plugs;
the periphery of body is connected in the periphery of tube cap through the connecting piece that easily bursts, the back is advanced in the tube cap precession, and the connecting piece that easily bursts damages, a pair of flexible sealing plug amalgamation shutoff under the effect of taper hole section the body.
Basically, the easy-to-break connecting piece is a plurality of plastic connecting pieces, and the connecting part of the plastic connecting pieces, the pipe cover and the pipe body is provided with an easy-to-break structure.
Basically, the structure of easily bursting is the easy broken line ball.
Basically, the first sealing section is an annular sealing plug.
Basically, the center of the tube cover is made of medical rubber.
Basically, the taper hole section is located the top-down fifth department of body.
The utility model discloses relative prior art has substantive characteristics and progress, specific theory, the utility model discloses a heparin tube with connecting piece and secondary seal structure easily fall, the back is ended in the blood sampling, through revolving the twist tube cap, makes intraductal propulsion certain distance in to the body, and the connecting piece that easily falls bursts, and inside a pair of flexible sealing stopper is pressed from both sides tightly to the centre under the bell mouth section effect, thoroughly blocks the body is inside, has avoided the pinhole behind the contact pin to reveal the problem of playing the seam with the tube cap that the application of force is improper leads to seals.
Furthermore, the cooperation of first seal section and second seal section is on the one hand to play sealed effect, and on the other hand has played the effect of direction, can also play the sealed effect of playing the seam of preventing because the length of tube cap has been increased by a wide margin.
Drawings
Fig. 1 is a schematic structural view of the middle vacuum blood collection tube of the present invention.
In the figure: 1. a pipe body; 2. a tube cover; 2-1, a top cover; 2-2. a first sealing section; 2-3, thread section; 2-4. a second sealing section; 2-5, flexible sealing plug; 3. a frangible connector; 4. a limiting ring; 5. an internal thread; 6. a tapered bore section.
Detailed Description
The technical solution of the present invention will be described in further detail through the following embodiments.
As shown in fig. 1, a vacuum blood collection tube comprises a tube body 1, a tube cap 2 and an easily-broken connecting piece 3, wherein the tube cap 2 comprises a top cap 2-1, a first sealing section 2-2, a thread section 2-3 and a second sealing section 2-4 which are sequentially arranged from the top to the bottom, the first sealing section 2-2 and the second sealing section 2-4 are annular sealing plugs, the length of the easily-broken connecting piece 3 is set according to the screwing distance of the tube cap 2, and the center of the tube cap is made of medical rubber for inserting a needle tube.
The easy-breaking connecting pieces 3 are a plurality of plastic connecting pieces, easy-breaking structures are arranged at the connecting positions of the plastic connecting pieces, the pipe covers and the pipe bodies, the easy-breaking structures are easy-breaking press lines, and the easy-breaking press lines are arranged in a dotted line shape and are thinned at the connecting positions of the plastic connecting pieces.
The installation of the easy-collapsing connecting piece 3 can be installed in a mode of after-loading, namely after the pipe cover 2 and the pipe body 1 are installed in place, the upper end and the lower end of the easy-collapsing connecting piece are respectively connected to the peripheries of the pipe cover 2 and the pipe body 1 through a machine.
The top end opening of body 1 is provided with spacing ring 4, and the primary function of spacing ring 4 is to prevent that first seal section 2-2 from deviating from the body.
The top inboard of body 1 sets up internal thread 5, it all sets up to smooth section to lie in the internal thread top and below on the body 1 inner wall and all correspond first seal segment 2-2 and second seal segment 2-4, and the distance of smooth section also is according to the required length setting of tube cap 2 precession.
The second sealing section 2-4 comprises a circumferential sealing ring and a pair of flexible sealing plugs 2-5 positioned at the bottom ends, the flexible sealing plugs 2-5 are integrally arranged to be of a conical structure with a narrow bottom and a wide top, a gap is reserved between the flexible sealing plugs, a section of conical hole section 6 is arranged in the pipe body 1 corresponding to the flexible sealing plugs, and the conical hole section 6 is positioned at one fifth of the pipe body from top to bottom.
The periphery of the pipe body 1 is connected to the periphery of the pipe cover 2 through the easy-to-break connecting piece 3, after the pipe cover 2 is screwed in, the easy-to-break connecting piece 3 is damaged, and the pair of flexible sealing plugs 2-5 are spliced and plugged with the pipe body 1 under the action of the conical hole section.
The structure principle is as follows:
in an initial state, the pipe cover 2 is connected to the pipe body 1 through the easy-to-break connecting piece 3, the first sealing section 2-2 and the second sealing section 2-4 on the pipe cover 2 respectively correspond to the two sections of smooth sections in the pipe body to play a role of primary sealing, and the easy-to-break connecting piece 3 and the thread sections are used for resisting the influence of negative pressure.
When the blood sampling needle is used, the blood sampling needle is inserted into the tube body, penetrates into the tube body from a gap between the pair of flexible sealing plugs, and is used for sampling blood under the action of vacuum negative pressure.
After blood collection is finished, the needle tube is pulled out, the tube cap 2 is screwed forwards, the connecting piece 3 which is easy to break is broken, the pair of flexible sealing plugs 2-5 are tightly pressed together in a splicing manner under the action of the conical hole section 6, and the blood collection tube below is completely sealed.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (6)
1. A vacuum blood collection tube is characterized in that: the pipe comprises a pipe body, a pipe cover and an easily-broken connecting piece, wherein the pipe cover comprises a top cover, a first sealing section, a threaded section and a second sealing section which are sequentially arranged from the top to the bottom;
the second sealing section comprises a circumferential sealing ring and a pair of flexible sealing plugs positioned at the bottom ends, the pair of flexible sealing plugs are integrally arranged into a conical structure with a narrow bottom and a wide top, a gap is reserved between the pair of flexible sealing plugs, and a section of conical hole section is arranged in the pipe body corresponding to the flexible sealing plugs;
the periphery of body is connected in the periphery of tube cap through the connecting piece that easily bursts, the back is advanced in the tube cap precession, and the connecting piece that easily bursts damages, a pair of flexible sealing plug amalgamation shutoff under the effect of taper hole section the body.
2. The evacuated blood collection tube according to claim 1, wherein: the easy-to-break connecting pieces are a plurality of plastic connecting pieces, and easy-to-break structures are arranged at the connecting positions of the plastic connecting pieces, the pipe covers and the pipe bodies.
3. The evacuated blood collection tube of claim 2, wherein: the structure of easily bursting is the easy disconnected line ball.
4. The evacuated blood collection tube of claim 3, wherein: the first sealing section is an annular sealing plug.
5. The evacuated blood collection tube according to claim 4, wherein: the center of the tube cover is made of medical rubber.
6. The evacuated blood collection tube of claim 5, wherein: the conical hole section is positioned at one fifth of the pipe body from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123383561.9U CN217365878U (en) | 2021-12-30 | 2021-12-30 | Vacuum blood collection tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123383561.9U CN217365878U (en) | 2021-12-30 | 2021-12-30 | Vacuum blood collection tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217365878U true CN217365878U (en) | 2022-09-06 |
Family
ID=83093134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123383561.9U Active CN217365878U (en) | 2021-12-30 | 2021-12-30 | Vacuum blood collection tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217365878U (en) |
-
2021
- 2021-12-30 CN CN202123383561.9U patent/CN217365878U/en active Active
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