CN203369910U - Double-layer vacuum blood sampling tube - Google Patents
Double-layer vacuum blood sampling tube Download PDFInfo
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- CN203369910U CN203369910U CN201320472244.0U CN201320472244U CN203369910U CN 203369910 U CN203369910 U CN 203369910U CN 201320472244 U CN201320472244 U CN 201320472244U CN 203369910 U CN203369910 U CN 203369910U
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- tube body
- outer tube
- double
- vacuum
- interference fit
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Abstract
The utility model discloses a double-layer vacuum blood sampling tube. The double-layer vacuum blood sampling tube comprises an outer tube body, an inner tube body and a sealing rubber plug. The double-layer tube is formed in a mode that the inner tube body is pressed into the outer tube body in a vacuum environment, the outer tube body is in interference fit with the inner tube body, and a vacuum cavity gap is formed between the inner wall of the outer tube body and the outer wall of the inner tube body. The double-layer vacuum blood sampling tube has the advantages that defects in the prior art can be overcome, and air and water can be well prevented due to the fact that the vacuum cavity gap is formed between the inner tube body and the outer tube body.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, especially a kind of Dual-layer vacuum blood taking tube.
Background technology
In plastic vacuum blood taking tube series of products, double-layer plastic vacuum serum tube is commonly used to do coagulation vessel, and its double-deck structure can play the effect of the choke that blocks water, and extends the shelf-life of product.
Dual-layer vacuum blood taking tube in the market has by optic-solidified adhesive bonding two-layer body tube wall realizes product structure, also has the mouth of pipe by with a kind of step stick harness plug, clog two-layer body simultaneously to realize product structure.
Dual-layer vacuum blood taking tube in the market is when carrying out the assembling of inner tube and outer tube, if the air between two bodys can not be got rid of totally, so, when inner tube is pressed into to the desired degree of depth, residual air can form certain air pressure because be squeezed, for this part air pressure is discharged, generally can on the outer wall of inner tube, do air discharge duct.Can bring like this problem, medicament in vacuum test tube likely can enter the lacuna of two-layer tube wall by this air discharge duct, affect the use of product, so, the way of taking is by the bonding inner tube of optic-solidified adhesive and outer tube, and optic-solidified adhesive has also stopped up air discharge duct simultaneously.Perhaps, by with a kind of step stick harness plug, clog the short poor mouth of pipe of two-layer body simultaneously, with the lacuna that prevents two-layer tube wall and the intercommunication of interior tube chamber, guarantee that the function of product is achieved.There is the problem of the large-scale production that is difficult to realize product because of complex procedures in these methods in the production process of product, make double-layer plastic vacuum serum tube be difficult to meet the demand of Hospitals at Present.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of Dual-layer vacuum blood taking tube, can solve the deficiencies in the prior art, by form the vacuum lacuna between interior tube body and outer tube body, has reached good choke block-water effect.
For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows.
A kind of Dual-layer vacuum blood taking tube, it includes outer tube body, interior tube body, seal rubber plug, and double-deck body, is pressed into body to interior tube body and forms by outer tube body under vacuum environment, it coordinates for interference fit, forms a vacuum lacuna between outer tube body inwall and interior tube body outer wall.
As preferably, the inclined-plane that the interference fit location of outer tube body and interior tube body is one section equal angular, height 1.5～4mm, the diameter of interior tube body cooperation position is than the large 0.06～0.2mm of the diameter of outer tube body cooperation position, for interference fit, intercept outside air and enter the vacuum lacuna.
As preferably, the sidewall interference fit of seal rubber plug and outer tube body, the bottom of seal rubber plug with the top plan of interior tube body for contacting pressing.
The beneficial effect that adopts technique scheme to bring is:
One, due to the pressing of the inner tube of carrying out under vacuum environment and outer tube, do not had air compressed and residual, assembling does not need too large pressure, can guarantee to greatest extent that product can not sustain damage, and does not have stress to produce yet.
Two, be applicable to large-scale production, improved productivity effect,, can reduce production costs simultaneously.
Three, owing to being the inner tube of carrying out under vacuum environment and the pressing of outer tube, product, after pressing, can guarantee that the formed lacuna of outer wall of inner tube and outer tube wall is real vacuum environment, and the choke of product is blocked water and plays best effect.
The accompanying drawing explanation
Fig. 1 is the axial section of Dual-layer vacuum blood taking tube in specific embodiment of this utility model.
Fig. 2 is interior tube body upper end interference fit location structure chart in specific embodiment of this utility model.
Fig. 3 is specific embodiment China and foreign countries body upper end interference fit location structure chart of this utility model.
Fig. 4 is the structure chart after interior tube body and outer tube body pressing in specific embodiment of this utility model.
Fig. 5 is seal rubber plug structure chart in specific embodiment of this utility model.
In figure: 1, outer tube body; 2, interior tube body; 3, seal rubber plug.
The specific embodiment
With reference to Fig. 1-5, structure of the present utility model comprises outer tube body 1, interior tube body 2, seal rubber plug 3, and double-deck body, is pressed into body 1 to interior tube body 2 and forms by outer tube body 1 under vacuum environment, it coordinates for interference fit, forms a vacuum lacuna between outer tube body 1 inwall and interior tube body 2 outer walls.
The inclined-plane that interference fit location that it should be noted that outer tube body 1 and interior tube body 2 is one section equal angular, height 2mm, the diameter of interior tube body 2 cooperation positions, than the large 0.1mm of diameter of outer tube body 1 cooperation position, be interference fit, intercept outside air and enter the vacuum lacuna.
In addition, the sidewall interference fit of described seal rubber plug 3 and outer tube body 1, the top plan of the bottom of seal rubber plug 3 and interior tube body 2 is for contacting pressing.
Under the environment of a vacuum, interior tube body 2 is pressed into to outer tube body 1; The A position of Fig. 2 and the B position of Fig. 3 under external force, complete combination in the mode of interference fit, and the product after completing as shown in Figure 4.The inclined-plane that the interference fit location of interior tube body 2 and outer tube body 1 is one section equal angular, height 2mm, the diameter of interior tube body 2 cooperation positions, than the large 0.1mm of diameter of outer tube body 1 cooperation position; The inwall of the outer wall of interior tube body 2 and outer tube body 1 forms a vacuum lacuna, i.e. vacuum insulation layer.
As shown in Figure 1, plug 3 is pressed into bimetallic tube, and the E position of Fig. 5 coordinates with the D position of Fig. 4, and the F position of Fig. 5 coordinates with the C position of Fig. 4.
This utility model is owing to adopting above technical scheme; owing to being the inner tube of carrying out and the pressing of outer tube under vacuum environment; product is after pressing; can guarantee that the formed lacuna of outer wall of inner tube and outer tube wall is real vacuum environment, the choke of product is blocked water and plays best effect, and; its technique is applicable to large-scale production; improved productivity effect,, can reduce production costs simultaneously
Above demonstration and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; this utility model is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present utility model; under the prerequisite that does not break away from this utility model spirit and scope; this utility model also has various changes and modifications, and these changes and improvements all fall in claimed this utility model scope.The claimed scope of this utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. a Dual-layer vacuum blood taking tube, it includes outer tube body (1), interior tube body (2), seal rubber plug (3), be characterized in: double-deck body by outer tube body (1) under vacuum environment, interior tube body (2) is pressed into to body (1) to be formed, it coordinates for interference fit, forms a vacuum lacuna between outer tube body (1) inwall and interior tube body (2) outer wall.
2. Dual-layer vacuum blood taking tube according to claim 1, it is characterized in that: the inclined-plane that the interference fit location of outer tube body (1) and interior tube body (2) is one section equal angular, height 1.5～4mm, the diameter of interior tube body (2) cooperation position is than the large 0.06～0.2mm of diameter of outer tube body (1) cooperation position, for interference fit, intercept outside air and enter the vacuum lacuna.
3. Dual-layer vacuum blood taking tube according to claim 1 is characterized in that: the sidewall interference fit of seal rubber plug (3) and outer tube body (1), the top plan of the bottom of seal rubber plug (3) and interior tube body (2) is for contacting pressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320472244.0U CN203369910U (en) | 2013-08-05 | 2013-08-05 | Double-layer vacuum blood sampling tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320472244.0U CN203369910U (en) | 2013-08-05 | 2013-08-05 | Double-layer vacuum blood sampling tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203369910U true CN203369910U (en) | 2014-01-01 |
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ID=49832468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320472244.0U Expired - Lifetime CN203369910U (en) | 2013-08-05 | 2013-08-05 | Double-layer vacuum blood sampling tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203369910U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104939844A (en) * | 2015-06-29 | 2015-09-30 | 徐万菊 | Medical blood collecting tube |
| CN107569244A (en) * | 2017-10-16 | 2018-01-12 | 李玉斌 | A kind of vascular surgery heparin tube |
| CN109820520A (en) * | 2019-02-14 | 2019-05-31 | 深圳市远景医疗器械模具有限公司 | A kind of manufacturing method of Dual-layer vacuum blood taking tube tube body |
-
2013
- 2013-08-05 CN CN201320472244.0U patent/CN203369910U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104939844A (en) * | 2015-06-29 | 2015-09-30 | 徐万菊 | Medical blood collecting tube |
| CN107569244A (en) * | 2017-10-16 | 2018-01-12 | 李玉斌 | A kind of vascular surgery heparin tube |
| CN109820520A (en) * | 2019-02-14 | 2019-05-31 | 深圳市远景医疗器械模具有限公司 | A kind of manufacturing method of Dual-layer vacuum blood taking tube tube body |
| CN109820520B (en) * | 2019-02-14 | 2022-07-15 | 深圳市远景医疗器械模具有限公司 | Method for manufacturing double-layer vacuum blood collection tube body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |