CN203089146U - Composite cap stopper for blood sampling tube and with improved structure - Google Patents
Composite cap stopper for blood sampling tube and with improved structure Download PDFInfo
- Publication number
- CN203089146U CN203089146U CN 201220745965 CN201220745965U CN203089146U CN 203089146 U CN203089146 U CN 203089146U CN 201220745965 CN201220745965 CN 201220745965 CN 201220745965 U CN201220745965 U CN 201220745965U CN 203089146 U CN203089146 U CN 203089146U
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- plug
- block
- wall
- cap stopper
- lower convex
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Abstract
The utility model relates to a composite cap stopper for a blood sampling tube and with an improved structure. The composite cap stopper comprises a rubber plug and a cap, wherein the cap is arranged on the outer wall of the rubber plug in a sleeved mode and is a hollow barrel body. An upper bulge loop part is arranged on the top of the inner wall of the cap. A lower bulge loop part is arranged at the position, below the upper bulge loop part, of the inner wall of the cap. The rubber plug comprises a plug neck part, a plug crown part covering the plug neck part, and a boss part covering the plug crown part. The outer wall of the plug crown part and the outer wall of the boss part are combined in a gap between the upper bulge loop part and the lower bulge loop part in a clamped mode. The inner wall of the plug crown part is in transition fit with the inner wall, between the upper bulge loop part and the lower bulge loop part, of the cap. The inner wall of the boss part is in interference fit with the inner wall, between the upper bulge loop part and the lower bulge loop part, of the cap. According to the composite cap stopper, the cap and the rubber plug are firmly connected so that the phenomenon that the cap falls off can be effectively prevented from happening. Moreover, the composite cap stopper is easy to assemble, process and manufacture.
Description
Technical field
This utility model relates to and is used for sealing-plug, is specifically related to a kind of compound cap stopper of blood taking tube that improves structure that has, and 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 test tube, plug and block, in vitro have certain negative pressure or vacuum.During blood sampling, blood taking needle one end puncture human vas, the plug of other end puncture blood collecting pipe, because negative pressure or vacuum condition in the pipe, the blood in the human vas flows in the blood taking tube.In three primary clusterings of blood taking tube, plug plays the effect of sealing test tube, and block plays the effect that prevents that blood sample from spilling; Plug and block constituted a kind of compound cap stopper.
According to different detection requirements, the blood taking tube after the blood sampling can be directly detected and be need not to open compound cap stopper by full automatic biochemical apparatus, also can manually assist and detect after taking off compound cap stopper again.Plug can not be pulled out test tube with pin when the used compound cap stopper of blood taking tube of full automatic biochemical apparatus detection required to pull out pin, otherwise in vitro blood sample can spill even pollute operator, also wastes blood sample simultaneously.On the other hand, take off under the situation that compound cap stopper detects again in that needs are manually auxiliary, plug can not be trapped in the blood sampling mouth of pipe when requiring to take off block, otherwise, the situation that blood spills also easily takes place when taking out plug again.The compound block that block and plug are formed usually can only adapt to a kind of detection mode in order to realize its assembling; If plug is to enter in it from the fit beneath of blocking a shot, compound cap stopper then is difficult to adapt to this needs and takes off the detection mode that compound cap stopper could detect; Otherwise if plug is to be fitted in it from the top of blocking a shot, compound cap stopper then is difficult to meet the needs of the detection mode of the full automatic biochemical apparatus detection of pulling out pin.No matter which kind of compound mode, the key of compound cap stopper are to improve the fastness of the connection between block and the plug, prevent disengaging each other between the two, to adapt to different blood examination modes.
Grant number is that the Chinese patent literature of CN2020864483U has been discussed a kind of compound cap stopper that is used for the blood taking tube sealing, it comprises block and plug, the inwall of block is provided with convex platform and the lower convex platform that is used for nested plug, be provided with upper groove and low groove with convex platform and the corresponding position of lower convex platform on the plug, the lower convex platform lower end on the block inwall is provided with the fixing card of the test tube that is used for fixing test tube; This compound cap stopper can adapt to the detection mode that full automatic biochemical apparatus detects, and also can meet the needs of artificial auxiliary detection mode; But, no matter be down or from the below of block up to assemble plug from the top of block, the plug of this compound cap stopper all can be subjected to huge extruding in the part between upper groove and the low groove when assembling, difficult assembling, and plug spoilage height during assembling, the assembling yield rate is low; In addition, has demoulding degree of difficulty height behind the capsule forming of upper and lower groove structure.
Therefore, be necessary to develop a kind of high and compound cap stopper of blood taking tube that easily process of yield rate that is connected firmly, assembles, to satisfy full automatic biochemical apparatus detection and artificial these two kinds of detection modes of auxiliary detection simultaneously to the requirement of blood taking tube with compound cap stopper.
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 compound cap stopper of blood taking tube that improves structure that has is provided, this compound cap stopper not only can be avoided the generation of plug and block break-off, satisfy full automatic biochemical apparatus detection mode and artificial auxiliary detection mode to the requirement of blood taking tube with compound cap stopper, and assembling easily, assembling yield rate height is easily made processing.
This utility model technical issues that need to address are achieved through the following technical solutions:
A kind of compound cap stopper of blood taking tube with improvement structure comprises plug and is set in the block that the plug outer wall is a hollow cylinder; The top of block inwall is provided with projecting ring section, and the place, projecting ring section below that is positioned at of block inwall is provided with lower convex ring portion; Plug comprises the plug cervical region, covers the plug bizet of plug cervical region and the boss portion that covers the plug bizet, the outer wall of plug bizet and boss portion is sticked in the gap between projecting ring section and the lower convex ring portion, and plug bizet and the inwall of block between last projecting ring section and lower convex ring portion are interference fits, and boss portion and the inwall of block between last projecting ring section and lower convex ring portion are interference fit.Here, because of the plug bizet of plug is stuck close between the last projecting ring section and lower convex ring portion of block, so limited relative motion up and down between plug and the block; Be respectively interference fits and interference fit because of filling in bizet and boss portion and the inwall of block between last projecting ring section and lower convex ring portion, so limited the horizontal relative motion between plug and the block.In addition, plug is provided with boss portion and replaces the former groove that is provided with at its outer wall above its plug bizet, has made things convenient for the demoulding after the plug injection moulding, has improved working (machining) efficiency.In addition, it is inner that the plug in this compound cap stopper is that the top from block is fitted into block, with block for the boss portion of interference fit is arranged on the top of plug, reduced erection stress, improved the easiness of assembling.
Optimized technical scheme can be: the described internal diameter of going up projecting ring section is greater than the internal diameter of described lower convex ring portion.Its purpose is to realize that plug is fitted into the inside of block by the top of block.
Further optimized technical scheme can be: the external diameter of described plug cervical region is 1.01 ~ 1.1 times of internal diameter of described lower convex ring portion.Because the internal diameter of above-mentioned last projecting ring section, means projecting ring section desires to move upward with respect to blocking a shot to plug barrier effect greater than the internal diameter of lower convex ring portion and block is desired the little of the barrier effect that moves upward with respect to plug less than lower convex ring portion; Here, the external diameter that the plug cervical region is set is a bit larger tham the internal diameter of lower convex ring portion, and this desires to set up obstruction one with respect to blocking a shot to move upward for plug, has strengthened the fastness that connects between plug and the block.
Further optimized technical scheme can be: described plug cervical region is provided with the annular groove that engages with described lower convex ring portion in its junction with described plug bizet.Here, annular groove and lower convex ring portion can be interference fit or interference fits, and the setting of annular groove can further strengthen the fastness that connects between plug and the block.
Further optimized technical scheme can be: the outer wall of described block is provided with fricting strip.Fricting strip can conveniently be taken blood taking tube.
Further optimized technical scheme can be: the inwall of described block is positioned at the fixing card of test tube that place, described lower convex ring subordinate side is evenly equipped with at least one circle.Test tube fixedly card can strengthen the fastness that is connected of compound cap stopper and test tube.
Further optimized technical scheme can be: the outer wall and/or the inwall of described block are provided with fillet structure.
Further optimized technical scheme can be: the top of described plug is provided with interior blind hole.Interior blind hole can further guarantee the fairness of acupuncture.
Compared with prior art, advantage of the present utility model and beneficial effect are: this have improve structure blood taking tube with compound cap stopper by on blocking a shot, lower convex ring portion carries out spacing up and down to plug, boss portion by plug and plug bizet respectively and the interference fit of the inwall formation of block between last projecting ring section and lower convex ring portion and interference fits plug is carried out horizontal spacing, and the plug cervical region is provided with the annular groove that can engage lower convex ring portion at its connection plug bizet place, for barrier has together been set up in the firm connection between plug and the block, so the biochemical instruments pin can not pull up plug is related when this compound cap stopper both can guarantee to adopt full automatic biochemical apparatus to detect, also can guarantee to adopt artificial auxiliary detection to take off and can not produce when blocking a shot that plug is trapped in the problem on the test tube.In addition, this plug is provided with boss portion and has replaced the former groove that is located on the plug outer wall at the top, on the basis of the effect of playing the engaging block, made things convenient for the demoulding after the injection moulding of plug, made things convenient for processing and manufacturing, simultaneously also make assembling more easy, reduced erection stress, improved the assembling yield rate.In addition, the outer wall of block also is provided with fricting strip, and its outer wall and/or inwall are provided with fillet structure, can conveniently take blood taking tube; The top of plug is provided with interior blind hole, can make things convenient for carrying out smoothly of acupuncture.
Description of drawings
Fig. 1 is the sketch map that partly cuts open of the present utility model;
Fig. 2 partly cuts open sketch map for the cap portion before this utility model assembling;
Fig. 3 partly cuts open sketch map for the part of the plug before this utility model assembling;
Fig. 4 is the perspective view of the preceding plug part of this utility model assembling.
Among the figure: 1, plug; 2, block; 11, boss portion; 12, plug bizet; 13, plug cervical region; 14, annular groove; 15, interior blind hole; 21, go up projecting ring section; 22, lower convex ring portion; 23, fricting strip; 24, the fixing card of test tube; The fillet structure of 25-1 to 25-2, block outer wall; 26, the fillet structure of block inwall.
The specific embodiment
Below in conjunction with accompanying drawing, 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 compound cap stopper of blood taking tube that improves structure that has, and as shown in Figures 1 to 4, it comprises plug 1 and is set in the block 2 that plug 1 outer wall is a hollow cylinder.
The block a shot top of 2 inwalls is provided with projecting ring section 21, and the place, projecting ring section 21 belows that is positioned at of 2 inwalls of blocking a shot is provided with lower convex ring portion 22, and the internal diameter of last projecting ring section 21 is greater than the internal diameter of lower convex ring portion 22, to make things convenient for plug 1 to be fitted into from 2 the top of blocking a shot to block a shot 2 inside.
Plug cervical region 13 is provided with the annular groove 14 that engages with lower convex ring portion 22 in its junction with plug bizet 12, and annular groove 14 and lower convex ring portion 22 are interference fit or interference fits, with further enhancing plug 1 and the connection compactness between 2 of blocking a shot.
The external diameter of plug cervical region 13 is 1.01 ~ 1.1 times of internal diameter of lower convex ring portion 22, desires to move upward with respect to block 2 for plug 1 and has set up obstruction together.
The outer wall of block 2 is provided with fricting strip 23.The inwall of block 2 is positioned at the fixing card 24 of test tube that place, lower convex ring portion 22 belows is evenly equipped with at least one circle.The outer wall of block 2 is provided with fillet structure 25-1,25-2.The inwall of block 2 also can be provided with fillet structure 26.
The top of plug 1 is provided with interior blind hole 15.
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 (8)
1. one kind has the compound cap stopper of blood taking tube that improves structure, comprises plug and is set in the block that the plug outer wall is a hollow cylinder; It is characterized in that the top of block inwall is provided with projecting ring section, the place, projecting ring section below that is positioned at of block inwall is provided with lower convex ring portion; Plug comprises the plug cervical region, covers the plug bizet of plug cervical region and the boss portion that covers the plug bizet, the outer wall of plug bizet and boss portion is sticked in the gap between projecting ring section and the lower convex ring portion, and plug bizet and the inwall of block between last projecting ring section and lower convex ring portion are interference fits, and boss portion and the inwall of block between last projecting ring section and lower convex ring portion are interference fit.
2. as claimed in claim 1 have a compound cap stopper of blood taking tube that improves structure, it is characterized in that, described on the internal diameter of projecting ring section greater than the internal diameter of described lower convex ring portion.
3. as claimed in claim 2 have a compound cap stopper of blood taking tube that improves structure, it is characterized in that, the external diameter of described plug cervical region is 1.01 ~ 1.1 times of internal diameter of described lower convex ring portion.
4. as claimed in claim 3 have a compound cap stopper of blood taking tube that improves structure, it is characterized in that: described plug cervical region is provided with the annular groove that engages with described lower convex ring portion in its junction with described plug bizet.
5. the compound cap stopper of blood taking tube with improvement structure as claimed in claim 4 is characterized in that the outer wall of described block is provided with fricting strip.
6. the compound cap stopper of blood taking tube with improvement structure as claimed in claim 5 is characterized in that, the inwall of described block is positioned at the fixing card of test tube that place, described lower convex ring subordinate side is evenly equipped with at least one circle.
7. the compound cap stopper of blood taking tube with improvement structure as claimed in claim 6 is characterized in that the outer wall and/or the inwall of described block are provided with fillet structure.
8. the compound cap stopper of blood taking tube with improvement structure as claimed in claim 7 is characterized in that the top of described plug is provided with interior blind hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220745965 CN203089146U (en) | 2012-12-29 | 2012-12-29 | Composite cap stopper for blood sampling tube and with improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220745965 CN203089146U (en) | 2012-12-29 | 2012-12-29 | Composite cap stopper for blood sampling tube and with improved structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203089146U true CN203089146U (en) | 2013-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220745965 Expired - Fee Related CN203089146U (en) | 2012-12-29 | 2012-12-29 | Composite cap stopper for blood sampling tube and with improved structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203089146U (en) |
Cited By (2)
| 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 |
| CN111870254A (en) * | 2020-07-09 | 2020-11-03 | 浙江拱东医疗器械股份有限公司 | Children's trace heparin tube that is fit for capillary blood sampling method |
-
2012
- 2012-12-29 CN CN 201220745965 patent/CN203089146U/en not_active Expired - Fee Related
Cited By (3)
| 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 |
| CN110217481B (en) * | 2019-05-09 | 2023-06-13 | 复旦大学附属中山医院 | Collecting pipe cap |
| CN111870254A (en) * | 2020-07-09 | 2020-11-03 | 浙江拱东医疗器械股份有限公司 | Children's trace heparin tube that is fit for capillary blood sampling method |
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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 |