CN203089893U - High-sealing-performance anti-splashing rubber plug for blood collection tube - Google Patents
High-sealing-performance anti-splashing rubber plug for blood collection tube Download PDFInfo
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- CN203089893U CN203089893U CN 201220745512 CN201220745512U CN203089893U CN 203089893 U CN203089893 U CN 203089893U CN 201220745512 CN201220745512 CN 201220745512 CN 201220745512 U CN201220745512 U CN 201220745512U CN 203089893 U CN203089893 U CN 203089893U
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- plug
- annular extension
- cervical region
- internal diameter
- blood taking
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Abstract
The utility model relates to a high-sealing-performance anti-splashing rubber plug for a blood collection tube. The high-sealing-performance anti-splashing rubber plug for the blood collection tube comprises a plug neck portion, a plug head portion and an annular extension, wherein the plug neck portion, the plug head portion and the annular extension are coaxially arranged, the plug head portion is placed above the plug neck portion and covers the plug neck portion, the annular extension is connected with the plug head portion, the annular extension extends from the plug head portion to the plug neck portion, an inner cavity of the annular extension defines the plug neck portion, the inner wall of the annular extension is of a diameter-variable structure, the portion, close to the plug head portion, of the annular extension is a first inner diameter area with the largest inner diameter, the portion, away from the plug head portion, of the annular extension is a second inner diameter area with the smallest inner diameter, and a gradually changing area with the medium inner diameter is arranged between the first inner diameter area and the second inner diameter area. Furthermore, an annular side inner groove is formed in the combination position of the plug neck portion and the plug head portion, and the side inner groove is tightly matched with a pipe opening protruding ring which protrudes inward to a pipe body of the blood collection pipe. Compared with the prior art, the high-sealing-performance anti-splashing rubber plug for the blood collection tube not only has an anti-splashing function and an anti-uncapping function, but also is high in sealing performance and easy to assemble.
Description
Technical field
This utility model relates to and is used for sealing-plug, is specifically related to a kind of blood taking tube with high leakproofness splashproof plug, belongs to technical field of medical instruments.
Background technology
In medical field, the health that blood sample is checked human body need be gathered usually by medical institutions.Traditional blood collection method is first syringe blood drawing, the blood tuberculosis in the syringe is inspected by ready samples in test tube again.Blood easily causes pollution in the tuberculosis process, influence the accuracy of testing result; Whole blood collection procedure complexity of while, the lost labor.Under this background, easy and simple to handle and blood sample is difficult for contaminated being widely used because of it for negative pressure blood taking tube or vacuum test tube.Negative pressure blood taking tube or vacuum test tube mainly are made up of blood taking tube body, plug and block, have certain negative pressure or vacuum in the body.During blood sampling, puncture the subsequently plug of vacuum test tube of the blood vessel of blood taking needle one end puncture human body, the other end; Because the blood in negative pressure or the vacuum condition in the pipe, human vas flows into blood taking tube.Here, plug plays the effect of sealing, and block plays and prevents that plug when unpacking blood sample from splashing operator's effect; Plug and block constituted a kind of compound cap stopper.
But the block of this compound cap stopper and plug are easy to break away from, so operator are still inevitable by the situation that blood sample pollutes.Though there is multiple mode to improve connectivity robustness between safe head cap and the plug now, such as: grant number is that the Chinese patent of CN2614628Y has been set up the plug bizet of a protruding circle to stop that the plug upper diameter is bigger on the inside of safety head cap.But safe head cap and plug are assembled after all producing respectively again, and therefore the production of compound cap stopper needs one injection moulding, one mold pressing procedure and one assembling procedure at least, and production process is loaded down with trivial details.Therefore, the rubber plug for vacutainer of integral type has advantage aspect the simplification production process at least than compound cap stopper.Such as, grant number be in the Chinese patent of CN2022883300U disclosed a kind of blood taking tube with the anti-plug of raising one's hat, this plug has been set up the annular extension of surrounding the plug cervical region, this annular extension has substituted in the compound cap stopper blocks a shot, and itself and the integrated molding of other parts of plug, production technology is simple, and the accident of raising one's hat of using compound cap stopper to occur often can not occur.But this blood taking tube is still waiting at aspects such as improving sealing to improve with the anti-plug of raising one's hat.
The utility model content
This utility model technical issues that need to address are to overcome the deficiencies in the prior art, a kind of blood taking tube high leakproofness splashproof plug is provided, this plug not only can avoid the fortuitous event that compound cap stopper is raised one's hat, blood sample spills to take place, and this plug has outstanding sealing effectiveness.
This utility model technical issues that need to address are achieved through the following technical solutions:
A kind of blood taking tube high leakproofness splashproof plug, this plug comprises the plug cervical region, is positioned at plug cervical region top and covers the plug bizet of plug cervical region and the annular extension that links to each other with the plug bizet, the annular extension is extended to plug cervical region direction by the plug bizet, and its internal cavity surrounds the plug cervical region; The inwall of annular extension has variable-diameter structure, its part near the plug bizet is the first internal diameter district, its part away from the plug bizet is the second internal diameter district, and the internal diameter in the first internal diameter district is the transition region greater than the internal diameter in the second internal diameter district between the first internal diameter district and the second internal diameter district.Here, the inwall of annular extension is upper coarse and lower fine variable-diameter structure, and during assembling, the second internal diameter district of plug is strutted by the blood taking tube body, and plug and blood taking tube body have been realized tight fit, and then have realized high leakproofness.
Optimized technical scheme is: the boundary line in described transition region and the described second internal diameter district and the lower surface of described plug cervical region same plane or be positioned at the place, lower surface of described plug cervical region planar below.If the boundary line in the transition region and the second internal diameter district is above place, lower surface planar of plug cervical region, then the first internal diameter district of annular extension is then very limited to the sealing function that the blood taking tube body is risen.
Further optimized technical scheme can be: plane, place, the described plug cervical region lower surface of described mistake certain distance is extended in the lower surface of described annular extension, and this distance is 1/3 to 5 times of described plug cervical region height.Even this apart from guaranteed unpacking during plug blood spill also and can be withstood by the inwall of this annular extension, thereby avoided operator to touch blood sample.
Further optimized technical scheme can be: described plug cervical region is provided with annular side inner groovy at itself and described plug bizet junction, itself and the inwardly protruded mouth of pipe bulge loop of blood taking tube body tight fit.Tight fit between annular side inner groovy and the mouth of pipe bulge loop has improved the sealing effectiveness of this splashproof plug.
Further optimized technical scheme can be: the lower surface of described plug cervical region and its outer wall junction are provided with chamfering, and the lower surface of described annular extension and its inwall junction are provided with chamfering.Chamfer design makes the plug and the assembling of blood sampling body become easy.
Further optimized technical scheme can be: the upper surface of described plug bizet is provided with one or more end face inner groovy.This end face inner groovy be provided with the dynamic airtightness that helps realize plug, both made plug possess and had reliable sealing effect, can when the unpacking plug, not produce excessive resistance again; Another advantage be reduce to a certain extent blood taking needle puncture plug the path of process, make that the puncture plug is more smooth.A plurality of end face inner groovies are set further reduce the resistance of unpacking during plug, do not influence the sealing effectiveness of plug simultaneously again.
Further optimized technical scheme can be: described end face inner groovy bottom is provided with blind hole.Blind hole the puncture path that can further shorten blood taking needle is set, make simultaneously that the location on plug is more prone to before the blood taking needle puncture plug.
Compared with prior art, advantage of the present utility model and beneficial effect are: this blood taking tube plug with splashproof anti-drop function is an integral structure, can avoid the situation that compound cap stopper raises one's hat to take place, can prevent that also the blood taking tube inner blood from spilling and pollute operator in the moment of plug unpacking; The side inner groovy that variable-diameter structure that inwall by annular extension has and plug cervical region are provided with in itself and plug bizet junction, this plug and blood taking tube body can be realized outstanding sealing effectiveness.
Description of drawings
Fig. 1 is the structural representation of traditional plug of being made up of plug bizet and plug cervical region;
Fig. 2 is the front view that partly cuts open of the present utility model;
Fig. 3 is a upward view of the present utility model;
Fig. 4 partly cuts open vertical view for this utility model along A-A line among Fig. 2;
Fig. 5 is the installation diagram of this utility model and blood taking tube body.
Among the figure: 1, plug cervical region; 2, plug bizet; 3, annular extension; 4 to 5, chamfering; 6, side inner groovy; 7 to 8, end face inner groovy; 9, blind hole; 10, blood taking tube body; 11, mouth of pipe bulge loop; 31, the first internal diameter district; 32, transition region; 33, the second internal diameter district.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described further.Following examples only are used for the technical solution of the utility model more clearly is described, and can not limit protection domain of the present utility model with this.
This utility model is a kind of blood taking tube high leakproofness splashproof plug, and shown in Fig. 2 to 4, this plug is an integral structure, comprises plug cervical region 1, covers the plug bizet 2 and the annular extension 3 of filling in cervical region 1.Compare with traditional as shown in Figure 1 plug of only being made up of plug bizet and plug cervical region, this utility model plug has been set up annular extension 3, and it mainly plays the effect that prevents that blood sample from spilling.
In this utility model, the shape of plug cervical region 1 and plug bizet 2 is cylinder, and coaxial setting, and the upper surface of plug cervical region 1 is fixed on the center, lower surface of plug bizet 2.Annular extension 3 links to each other with plug bizet 2, and annular extension 3 by plug bizet 2 to plug cervical region 1 direction extend and with fill in cervical region 1 coaxial setting; The external diameter of annular extension 3 is no more than the external diameter of plug bizet 2.Gapped between annular extension 3 and the plug cervical region 1, the internal cavity of annular extension 3 surrounds plug cervical region 1.Plane, place, extend through plug cervical region 1 lower surface, the lower surface certain distance of annular extension 3, this distance is 1/3 to 5 times of plug cervical region 1 height.
The inwall of annular extension 3 has variable-diameter structure, its part near plug bizet 2 is the first internal diameter district 31, its part away from plug bizet 2 is the second internal diameter district 33, the internal diameter in the first internal diameter district 31 is greater than the internal diameter in the second internal diameter district 33, and is transition region 32 between the first internal diameter district 31 and the second internal diameter district 33; And the boundary line in the transition region 32 and the second internal diameter district 33 with the plug cervical region 1 the lower surface same plane or be positioned at the plug cervical region 1 the place, lower surface planar below.Because the inwall of annular extension 3 is upper coarse and lower fine variable-diameter structure, when this plug and 10 assemblings of blood taking tube body, as shown in Figure 5, the second internal diameter district 33 is strutted by blood taking tube body 10, the second internal diameter district 33 has realized tight fit with blood taking tube body 10, thereby has realized high leakproofness.
In addition, plug cervical region 1 is provided with annular side inner groovy 6 at itself and plug bizet 2 junctions, and itself and blood taking tube body 10 be inwardly protruded mouth of pipe bulge loop 11 tight fits at mouth of pipe place, further improve sealing effectiveness.
Lower surface and its inwall junction of annular extension 3 are provided with chamfering 4, and lower surface and its outer wall junction of plug cervical region 1 also are provided with chamfering 5.The design of chamfering 4,5 can make the assembling of plug and blood taking tube body 10 become easy.
On the upper surface of plug bizet 2, be provided with one or more end face inner groovy.As shown in Figure 2, be provided with two end face inner groovies 7,8 on the upper surface of plug bizet 2, wherein, the end face inner groovy 8 of an annular surrounds another columniform end face inner groovy 7.In addition, the bottom of end face inner groovy 7 is provided with blind hole 9.The design of end face inner groovy 7,8 and blind hole 9 can be shortened the puncture path of blood taking needle, and the location of blood taking needle on plug is more prone to, the resistance when also reducing the unpacking plug.
Above-mentioned each embodiment is to preferred implementation of the present utility model.Should be pointed out that for those skilled in the art under the prerequisite that does not break away from this utility model know-why, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. a blood taking tube is with high leakproofness splashproof plug, this plug comprises the plug cervical region, is positioned at plug cervical region top and covers the plug bizet of plug cervical region and the annular extension that links to each other with the plug bizet, the annular extension is extended to plug cervical region direction by the plug bizet, and its internal cavity surrounds the plug cervical region; It is characterized in that, the inwall of annular extension has variable-diameter structure, and its part near the plug bizet is the first internal diameter district, and its part away from the plug bizet is the second internal diameter district, the internal diameter in the first internal diameter district is the transition region greater than the internal diameter in the second internal diameter district between the first internal diameter district and the second internal diameter district.
2. blood taking tube as claimed in claim 1 high leakproofness splashproof plug, it is characterized in that, the boundary line in described transition region and the described second internal diameter district and the lower surface of described plug cervical region same plane or be positioned at the place, lower surface of described plug cervical region planar below.
3. blood taking tube as claimed in claim 2 is characterized in that with high leakproofness splashproof plug, plane, place, the described plug cervical region lower surface of the lower surface extend through of described annular extension certain distance, and this distance is 1/3 to 5 times of described plug cervical region height.
4. as any described blood taking tube high leakproofness splashproof plug of claim 1 to 3, it is characterized in that described plug cervical region is provided with annular side inner groovy at itself and described plug bizet junction, itself and the inwardly protruded mouth of pipe bulge loop of blood taking tube body tight fit.
5. blood taking tube as claimed in claim 4 is characterized in that with high leakproofness splashproof plug the lower surface of described plug cervical region and its outer wall junction are provided with chamfering, and the lower surface of described annular extension and its inwall junction are provided with chamfering.
6. blood taking tube as claimed in claim 5 is characterized in that with high leakproofness splashproof plug the upper surface of described plug bizet is provided with one or more end face inner groovy.
7. blood taking tube as claimed in claim 6 is characterized in that with high leakproofness splashproof plug described end face inner groovy bottom is provided with blind hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220745512 CN203089893U (en) | 2012-12-29 | 2012-12-29 | High-sealing-performance anti-splashing rubber plug for blood collection tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220745512 CN203089893U (en) | 2012-12-29 | 2012-12-29 | High-sealing-performance anti-splashing rubber plug for blood collection tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203089893U true CN203089893U (en) | 2013-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220745512 Expired - Fee Related CN203089893U (en) | 2012-12-29 | 2012-12-29 | High-sealing-performance anti-splashing rubber plug for blood collection tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203089893U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217481A (en) * | 2019-05-09 | 2019-09-10 | 复旦大学附属中山医院 | A kind of collecting pipe pipe lid |
-
2012
- 2012-12-29 CN CN 201220745512 patent/CN203089893U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217481A (en) * | 2019-05-09 | 2019-09-10 | 复旦大学附属中山医院 | A kind of collecting pipe pipe lid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20151229 |
|
| EXPY | Termination of patent right or utility model |