CN209899404U - Puncture-free vacuum blood collection tube - Google Patents
Puncture-free vacuum blood collection tube Download PDFInfo
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- CN209899404U CN209899404U CN201920163088.7U CN201920163088U CN209899404U CN 209899404 U CN209899404 U CN 209899404U CN 201920163088 U CN201920163088 U CN 201920163088U CN 209899404 U CN209899404 U CN 209899404U
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Abstract
Exempt from puncture vacuum test tube, including the sealed lid of heparin tube and an elastic seal plug, the sealed bottom that covers of heparin tube has the recess, and the sealed bonding of heparin tube opening or sealed spiro union are in the recess of the sealed lid of heparin tube, and the inside vacuum state that is of heparin tube. The sealing structure which can be opened and closed is formed by matching the elastic sealing rubber plug and the sealing cover inner structure of the blood collection tube, when the puncture-free vacuum blood collection tube is matched with a needle-free blood collection needle for use, the puncture-free vacuum blood collection tube can be screwed in to form a passage, and the passage is automatically closed and sealed after the puncture-free vacuum blood collection tube is screwed out. Thereby greatly reducing the risk of acupuncture in clinical use and providing more convenient selection for clinical operation.
Description
Technical Field
The utility model relates to a puncture-free vacuum blood collection tube which is matched with a needle-free blood collection needle for use.
Background
Clinical blood collection is a very popular medical means at present, and blood samples are obtained through clinical blood collection, which is the basis of disease diagnosis and is the most basic medical item of each hospital. Because of this, medical care personnel who carry out clinical blood sampling operation also face a great risk, and hundreds of acupuncture operations per day expose medical care operator in the acupuncture harm, and the risk such as stab wound, infection is very high. Particularly, blood taking needles on the current market are both double-end needles, namely, a patient end needs to be subjected to one-time steel needle puncturing operation, and a blood taking tube end needs to be subjected to one-time steel needle puncturing operation. The international organization for standardization has established a standard for needle stick prevention requirements (ISO 23908) in 2011, and China also added the needle stick prevention requirements to the relevant standards of various medical needles in succession from 2014.
In addition, a rubber plug is punctured by a steel needle between a blood taking needle and a blood taking tube on the market at present to realize blood taking, and sealing is realized by the elasticity of the rubber plug of the blood taking tube and the rubber cap of the blood taking needle after the needle is pulled out, so that the working principle has certain limitation, and the rubber or latex product can realize repeated deformation and reversion so as to be applied to a plurality of places as sealing parts, but once the structure is damaged to generate physical damage, the characteristics of the rubber or latex product cannot be continuously maintained if cracks, gaps and the like occur, namely the sealing effect of the rubber cap of the blood taking needle fails due to repeated operation; and the sharpness of the needle point is also reduced, and medical accidents such as blood leakage, puncture failure and the like can occur at a high probability after a certain number of times, so that the number of times of puncture can be clearly indicated in the specifications of the existing blood taking needle products. However, in clinical scenes such as systemic physical examination, treatment of major diseases such as cancer, emergency treatment and the like, it is often necessary to take multiple blood tubes for respective detection, but the number of times that the blood collection needle can be repeatedly punctured is very limited, and the blood collection needle needs to be replaced when the number of times exceeds the number of times, which causes secondary puncture of a patient correspondingly and brings unnecessary pain.
Disclosure of Invention
In view of the defects existing in the prior art, the utility model provides a puncture-free vacuum blood collection tube, which is matched with the sealing cover inner structure of the blood collection tube through the elastic sealing rubber plug to form an openable sealing structure, and when the puncture-free vacuum blood collection tube is matched with a needle-free blood collection needle for use, the screw can be screwed in to form a passage, and the passage is automatically closed and sealed after being screwed out.
The utility model discloses a realize above-mentioned purpose, the technical scheme who adopts is: exempt from puncture vacuum test tube, including the sealed lid of test tube and test tube, the sealed bottom of seal of test tube lid has the recess, and the sealed bonding of test tube opening or sealed spiro union are in the recess of the sealed lid of test tube, and the inside vacuum state, its characterized in that are of test tube: also comprises an elastic sealing rubber plug.
An annular blind groove is seted up from the top along the department outside the sealed lid of heparin tube, is equipped with the screw thread on the annular blind inslot wall, and a blind hole has been seted up from the top in center department, and the half moon shape blind groove I and the half moon shape blind groove II of symmetry are seted up to the recess bottom.
The blind hole opening part is provided with a circle of boss, the wall of the blind hole is provided with a symmetrical strip-shaped opening I and a symmetrical strip-shaped opening II, and the strip-shaped opening I and the strip-shaped opening II are respectively communicated with the bottoms of the half-moon-shaped blind groove I and the half-moon-shaped blind groove II.
The elastic sealing rubber plug is provided with a sealing part and a telescopic part, the sealing part is a cylinder, the telescopic part is in a gourd shape, the overall dimension of the elastic sealing rubber plug is matched with the blind hole, the blind hole is arranged in the blind hole, the boss can limit the elastic sealing rubber plug not to be separated, and the sealing part can seal the strip-shaped opening I and the strip-shaped opening II.
The use method of the puncture-free vacuum blood collection tube is characterized in that: before using, the elastic sealing plug in the boss restriction blind hole makes it can not deviate from at will, and the sealing is sealed bar opening I and bar opening II and is lived, prevents the inside and outside gas exchange of heparin tube, makes and keeps vacuum state in the heparin tube.
The utility model has the advantages that: but cooperate through elastic sealing plug and the sealed lid inner structure of heparin tube and form open closed seal structure, exempt from to pierce through the vacuum heparin tube when using with the cooperation of needleless blood taking needle, automatic formation route when can realizing the needleless blood sampling portion of screw in, then route automatic closure is just sealed by the elastic sealing plug when unscrewing, such exempt from to pierce through the vacuum heparin tube need not use the steel needle to puncture, fundamentally has abandoned current steel needle formula blood sampling syringe needle, two problems have just been solved simultaneously to this: firstly, medical care personnel reduce the original two times of steel needle puncture into one time (the patient end still uses the steel needle, and the blood sampling end uses the needleless connection), so the original puncture risk is also reduced by half; and secondly, the puncture is not dependent on a steel needle, the structure of rubber or latex parts cannot be damaged, so that the phenomenon of sealing failure cannot occur, the puncture quantity is correspondingly not limited, the puncture-free vacuum blood collection tube and the needleless blood collection needle are matched for use, dozens of times or even hundreds of times of puncture operation can be realized, the durable limit of the puncture-free vacuum blood collection tube far exceeds the clinical use requirement, the clinical use is convenient, and the incidence rate of secondary puncture is reduced. In conclusion, the puncture-free vacuum blood collection tube can greatly reduce the risk of puncture in clinical use, provides more convenient selection for clinical operation and improves the comfort level of patients in hospitalizing.
Drawings
FIG. 1 is an overall perspective view of the present invention;
FIG. 2 is a perspective view of the sealing cap of the blood collection tube of the present invention;
fig. 3 is a cross-sectional view taken along line a-a of fig. 2 in accordance with the present invention;
FIG. 4 is a top view of the sealing cap of the blood collection tube of the present invention;
fig. 5 is a bottom view of the sealing cap of the blood collection tube of the present invention;
fig. 6 is a cross-sectional view taken along line B-B of fig. 5 in accordance with the present invention;
fig. 7 is a cross-sectional view of fig. 5, taken along line C-C in accordance with the present invention;
fig. 8 is a schematic bottom perspective view of the sealing cap of the blood collection tube of the present invention;
FIG. 9 is a schematic view of the structure of the elastic sealing rubber plug;
fig. 10 is a schematic view of the sealing cap and the sealing rubber plug of the blood collection tube of the present invention;
fig. 11 is a schematic view of the present invention in a state before use;
FIG. 12 is a schematic view of the present invention in use;
FIG. 13 is a schematic structural view of the injection head and injection port of the present invention;
fig. 14 is a schematic structural view of the elastic sealing ring of the present invention;
fig. 15 is a top view of the elastic sealing ring of the present invention;
fig. 16 is a cross-sectional view taken along line D-D of fig. 15 according to the present invention.
Detailed Description
As shown in fig. 1 to 9, the puncture-free vacuum blood collection tube comprises a sealing cover 1 of the blood collection tube and a blood collection tube 2, wherein the bottom of the sealing cover 1 of the blood collection tube is provided with a groove 1-1, an opening 2-1 of the blood collection tube 2 is hermetically bonded or screwed in the groove 1-1 of the sealing cover 1 of the blood collection tube, the inside of the blood collection tube 2 is in a vacuum state, and the puncture-free vacuum blood collection tube further comprises an elastic sealing rubber plug 3.
An annular blind groove 1-2 is formed in the outer edge of the blood collection tube sealing cover 1 from the top, threads are arranged on the inner wall of the annular blind groove 1-2, a blind hole 1-3 is formed in the center from the top, and a half-moon-shaped blind groove I1-4 and a half-moon-shaped blind groove II 1-5 are symmetrically formed in the bottom of the groove.
A circle of bosses 1-3-1 are arranged at the opening of the blind hole 1-3, a strip-shaped opening I1-3-2 and a strip-shaped opening II 1-3-3 which are symmetrical are arranged on the wall of the blind hole 1-3, and the strip-shaped opening I1-3-2 and the strip-shaped opening II 1-3-3 are respectively communicated with the bottoms of the half-moon-shaped blind grooves I1-4 and the half-moon-shaped blind grooves II 1-5.
The elastic sealing rubber plug 3 is provided with a sealing part 3-1 and a telescopic part 3-2, the sealing part 3-1 is a cylinder, the telescopic part 3-2 is in a gourd shape, the external dimension of the elastic sealing rubber plug 3 is matched with the blind hole 1-3 and is arranged in the blind hole 1-3 to be tightly matched with the blind hole 1-3, the boss 1-3-1 can limit the elastic sealing rubber plug 3 from falling off, and the sealing part 3-1 can seal the strip-shaped opening I1-3-2 and the strip-shaped opening II 1-3-3.
As shown in fig. 10 to 16, the needleless blood sampling needle used in conjunction with the present invention includes a flexible tube, a vein needle, a blood sampling portion 4 and a hollow cylindrical elastic sealing ring 5, the blood sampling portion 4 has an outer wall and an inner cavity, the blood sampling portion 4 is further provided with a middle wall located in the middle position of the blood sampling portion 4, the middle wall is provided with a cylindrical liquid injection head 4-1 at the center and extending outwards, the outer wall, the middle wall and the liquid injection head 4-1 form a hollow cylindrical rubber plug position, and the inner wall of the outer wall is further provided with a ring-shaped protruding position for blocking the rubber plug to prevent falling off.
The liquid injection head 4-1 is internally provided with a hollow cavity along the central axis, one end of the hollow cavity is communicated with the inner cavity by penetrating through the central wall, the other end of the hollow cavity is not communicated with the top of the liquid injection head 4-1 and is communicated with the liquid injection port 4-1-1, and the liquid injection port 4-1-1 is a through hole vertical to the hollow cavity.
The elastic sealing ring 5 consists of a gourd-shaped deformation part 5-1 at the upper part and a sealing ring 5-2 at the lower part, the size of the elastic sealing ring 5 is matched with the size of the rubber plug position, the elastic sealing ring is arranged in the rubber plug position and is tightly matched with the rubber plug position, the elastic sealing ring 5 can be limited by the annular clamping position not to be separated, and the position of the sealing ring 5-2 corresponds to the position of the liquid injection port 4-1-1, so that the sealing ring can be sealed.
Before use, the puncture-free vacuum blood collection tube part is in the following states: the boss 1-3-1 limits the elastic sealing rubber plug 3 in the blind hole 1-3 to prevent the elastic sealing rubber plug from falling off randomly, and the sealing part 3-1 seals the strip-shaped opening I1-3-2 and the strip-shaped opening II 1-3-3 to prevent the exchange of gas inside and outside the blood collection tube 2 and keep the interior of the blood collection tube 2 in a vacuum state; the state of the needle-free blood taking needle part is as follows: a hollow cylindrical elastic sealing ring 5 of the needle-free blood taking needle is embedded in a blood taking part 4 and is clamped by an annular clamping position to prevent the needle-free blood taking needle from falling off, and a liquid injection port 4-1-1 is sealed by a sealing ring 5-2 at the lower part of the hollow cylindrical elastic sealing ring 5 to prevent air contact and blood leakage.
When in use, the blood sampling part 4 of the needleless blood sampling needle is arranged in the annular blind groove 1-2 of the sealing cover 1 of the blood sampling tube, the blood sampling part 4 is rotated to enter the sealing cover 1 of the blood sampling tube, along with the penetration of the blood sampling part 4, a liquid injection head 4-1 in the blood sampling part 4 continuously presses the elastic sealing rubber plug 3 in the blind hole 1-3 to lead the expansion part 3-2 to be compressed and deformed downwards, the sealing part 3-1 moves downwards, the strip-shaped opening I1-3-2 and the strip-shaped opening II 1-3-3 are gradually exposed, meanwhile, the sealing cover 1 of the blood sampling tube correspondingly presses the hollow cylindrical elastic sealing ring 5 to cause the deformation part 5-1 at the upper part to generate compression deformation, thereby moving the position of the sealing ring 5-2 of the hollow cylindrical elastic sealing ring 5 upwards and gradually exposing the liquid injection port 4-1-1 on the liquid injection head 4-1.
When the blood sampling part 4 rotates to the bottom, the exposed liquid injection port 4-1-1 is completely communicated with the exposed strip-shaped opening I1-3-2 and the exposed strip-shaped opening II 1-3-3, so that the inner cavity of the needle-free blood sampling needle is communicated with the blood sampling tube 2 through the half-moon-shaped blind groove I1-4 and the half-moon-shaped blind groove II 1-5, and under the negative pressure action of the blood sampling tube 2, blood enters the half-moon-shaped blind groove I1-4 and the half-moon-shaped blind groove II 1-5 through the vein needle, the hose, the inner cavity of the blood sampling part 4, the hollow cavity of the liquid injection head 4-1 and the liquid injection port 4-1-1 and finally flows into the blood sampling tube 2.
After the device is used, the blood sampling part 4 of the needle-free blood sampling needle is screwed out, the liquid injection head 4-1 is driven by the blood sampling part 4 to move upwards, a passage between the liquid injection port 4-1-1 and the strip-shaped opening I1-3-2 and the strip-shaped opening II 1-3-3 is cut off, the telescopic part 3-2 of the elastic sealing rubber plug 3 is restored to the original state, and the sealing part 3-1 returns to the positions of the strip-shaped opening I1-3-2 and the strip-shaped opening II 1-3-3 again and seals the positions, so that blood leakage is prevented, and air enters the blood sampling tube 2; meanwhile, as the sealing cover 1 of the blood sampling tube is gradually separated from the blood sampling part 4, the deformation part 5-1 at the upper part of the hollow cylindrical elastic sealing ring 5 is gradually restored to the original shape, and the sealing ring 5-2 at the lower part of the hollow cylindrical elastic sealing ring 5 returns to the position of the liquid injection port 4-1-1 again and seals the liquid injection port, thereby preventing blood leakage or air from entering the blood sampling part 4.
And finally, the blood sampling part 4 is unscrewed anticlockwise, and other puncture-free vacuum blood sampling tubes are replaced to operate again according to the steps.
Claims (1)
1. Exempt from puncture vacuum test tube, including sealed lid of test tube (1) and test tube (2), test tube sealed lid (1) bottom has recess (1-1), and test tube (2) opening (2-1) seal bonding or sealed spiro union are in recess (1-1) of test tube sealed lid (1), and test tube (2) are inside to be vacuum state, its characterized in that: also comprises an elastic sealing rubber plug (3);
an annular blind groove (1-2) is formed in the outer edge of the blood collection tube sealing cover (1) from the top, threads are arranged on the inner wall of the annular blind groove (1-2), a blind hole (1-3) is formed in the center from the top, and a half-moon-shaped blind groove I (1-4) and a half-moon-shaped blind groove II (1-5) are symmetrically formed in the bottom of the groove (1-1);
a circle of bosses (1-3-1) are arranged at the opening of the blind hole (1-3), a strip-shaped opening I (1-3-2) and a strip-shaped opening II (1-3-3) which are symmetrical are arranged on the wall of the blind hole (1-3), and the strip-shaped opening I (1-3-2) and the strip-shaped opening II (1-3-3) are respectively communicated with the bottoms of the half-moon-shaped blind groove I (1-4) and the half-moon-shaped blind groove II (1-5);
the elastic sealing rubber plug (3) is provided with a sealing part (3-1) and a telescopic part (3-2), the sealing part (3-1) is a cylinder, the telescopic part (3-2) is in a gourd shape, the overall dimension of the elastic sealing rubber plug (3) is matched with the blind hole (1-3), the elastic sealing rubber plug is arranged in the blind hole (1-3) and is tightly matched with the blind hole (1-3), the boss (1-3-1) can limit the elastic sealing rubber plug (3) from being separated, and the sealing part (3-1) can seal the strip-shaped opening I (1-3-2) and the strip-shaped opening II (1-3-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920163088.7U CN209899404U (en) | 2019-01-30 | 2019-01-30 | Puncture-free vacuum blood collection tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920163088.7U CN209899404U (en) | 2019-01-30 | 2019-01-30 | Puncture-free vacuum blood collection tube |
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| Publication Number | Publication Date |
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| CN209899404U true CN209899404U (en) | 2020-01-07 |
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| CN201920163088.7U Active CN209899404U (en) | 2019-01-30 | 2019-01-30 | Puncture-free vacuum blood collection tube |
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| CN (1) | CN209899404U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109567826A (en) * | 2019-01-30 | 2019-04-05 | 天津哈娜好医材有限公司 | Exempt to puncture vacuum blood collection tube and its application method |
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2019
- 2019-01-30 CN CN201920163088.7U patent/CN209899404U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109567826A (en) * | 2019-01-30 | 2019-04-05 | 天津哈娜好医材有限公司 | Exempt to puncture vacuum blood collection tube and its application method |
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