CN203634179U - Disposable blood lancet - Google Patents
Disposable blood lancet Download PDFInfo
- Publication number
- CN203634179U CN203634179U CN201420024003.4U CN201420024003U CN203634179U CN 203634179 U CN203634179 U CN 203634179U CN 201420024003 U CN201420024003 U CN 201420024003U CN 203634179 U CN203634179 U CN 203634179U
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- CN
- China
- Prior art keywords
- shell
- needle
- piston
- hole
- needle tubing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a disposable blood lancet comprising a tube, a piston and a needle. A shell is movably arranged outside the tube and the needle. The shell comprises a first shell and a second shell connected in a threaded manner. One end of the piston extends out of the shell; a spring is arranged between the piston and the shell. A stopper which drops when bearing certain force is disposed between the shell and the tube. The sidewall of the shell is provided with a second through hole; one end of the stopper is connected with the edge of the second through hole. The tube is connected with a spring plate; the inner wall of the shell is provided with a groove corresponding to the spring plate. The shell is further provided with a first through admitting passage of the needle. The disposable blood lancet according to the scheme has the advantages that the lancet is simple in structure and reasonable in design; before and after using, the needling is retracted into the shell and never scratches people; during blood taking, pressure that the spring applies diminishes, negative pressure generates in a blood taking sac so as to assist in blood taking.
Description
Technical field
This utility model relates to a kind of hematology apparatus, relates in particular to a kind of disposable blood taking needle.
Background technology
Outside the syringe needle of traditional blood taking instrument is exposed to, exists and scratch medical personnel and other risk that is verified personnel, just may cause cross infection once the syringe needle after particularly using scratches other people, endanger very large to medical personnel and the personnel that are verified.
Utility model content
This utility model is for the existing deficiency of prior art, and provides a kind of simple in structure, reasonable in design, and before using and after using, syringe needle is all contracted in enclosure, can not scratch other people disposable blood taking needle.
To achieve these goals, this utility model provides a kind of disposable blood taking needle, comprise needle tubing, piston and syringe needle, described needle tubing and syringe needle external activity are provided with shell, described piston one end stretch out described shell and and described shell between be provided with spring, between described shell and described needle tubing, be provided with the block that the power that set value just can come off, described needle tubing is also connected with reed, the corresponding described reed of described outer casing inner wall is provided with groove, and described shell is also provided with the through hole one passing through for syringe needle.
Wherein, described side wall of outer shell is provided with through hole two, and described block one end is connected with the edge of described through hole two.
Described shell comprises the shell one and the shell two that are threaded.
When use, outer casing end is touched by blood drawing personnel's skin, medical personnel promote piston, when an end in contact of piston and needle tubing connecting needle, block is subject to medical personnel's externally applied forces and is greater than while setting value, and block comes off suddenly and drops out from through hole two, and syringe needle moment passes through hole one and thrusts patient skin, meanwhile, reed slide into grooves.Afterwards, medical personnel's finger leaves piston, and piston is the end motion away from syringe needle to needle tubing under the promotion of spring, and reed stops needle tubing to follow piston movement, forms negative pressure and start blood drawing in needle tubing.In the time that piston touches needle tubing away from one end of syringe needle, blood drawing completes, and reed is stressed simultaneously becomes large damage suddenly, and needle tubing is along with piston moves together, and syringe needle enters enclosure again.Medical personnel turn on shell, just can take out the needle tubing of having drawn blood.
The beneficial effect of this programme can be learnt according to the narration to such scheme, simple in structure, reasonable in design; Before using and after using, syringe needle is all contracted in enclosure, can not scratch other people.The block that the power being set value just can come off and reed that can be destroyed, guaranteed that needle tubing can only use once.Side wall of outer shell is provided with through hole two, and block one end is connected with the edge of through hole two, when block is come off, can be got rid of shell, does not affect the motion of needle tubing.Shell shell comprises the shell one and the shell two that are threaded, and after being used to complete, medical personnel turn on shell, just can take out needle tubing.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model specific embodiment.
Fig. 2 is the structural representation in the use procedure of this utility model specific embodiment.
In figure, 1, needle tubing; 2, piston; 3, syringe needle; 4, shell; 5, spring; 6, block; 7, reed; 8, groove; 9, through hole one; 10, through hole two; 11, shell one; 12, shell two.
The specific embodiment
For clearly demonstrating the technical characterstic of this programme, below by the specific embodiment, this programme is set forth.
As shown in Figure 1 and Figure 2, this utility model is a kind of disposable blood taking needle, comprises needle tubing 1, piston 2 and syringe needle 3, and needle tubing 1 and syringe needle 3 external activitys are provided with shell 4, and shell 4 comprises the shell 1 and the shell 2 12 that are threaded.Piston 2 one end stretch out shell 4 and and shell 4 between be provided with spring 5, between shell 4 and needle tubing 1, be provided with the block 6 that the power that set value just can come off, shell 4 sidewalls are provided with through hole 2 10, block 6 one end are connected with the edge of through hole 2 10.Needle tubing 1 is also connected with reed 7, and the corresponding reed 5 of shell 4 inwalls is provided with groove 8, and shell 4 is also provided with the through hole 1 passing through for syringe needle 3.
When use, shell 4 ends are touched by blood drawing personnel's skin, medical personnel promote piston 2, when piston 2 and an end in contact of needle tubing 1 connecting needle 3, block 6 is subject to medical personnel's externally applied forces and is greater than while setting value, and block 6 comes off suddenly and drops out from through hole 2 10, and syringe needle moment passes through hole 1 and thrusts patient skin, meanwhile, reed 7 slide into grooves 8.Afterwards, medical personnel's finger leaves piston 2, and piston 2 is the end motion away from syringe needle 3 to needle tubing 1 under the promotion of spring 5, and reed 7 stops needle tubing 1 to follow piston 2 to move, and 1 li of formation negative pressure of needle tubing starts blood drawing.In the time that piston 2 touches needle tubing 1 away from one end of syringe needle 3, blood drawing completes, and reed 7 is stressed simultaneously becomes large damage suddenly, and needle tubing 1 is along with piston 2 moves together, and syringe needle 3 enters shell 4 inside again.Medical personnel turn on shell 4, just can take out the needle tubing 1 of having drawn blood.
This utility model can pass through or adopt existing techniques in realizing without the technical characterictic of describing; do not repeat them here; certainly; above-mentioned explanation is not to restriction of the present utility model; this utility model is also not limited in above-mentioned giving an example; variation, remodeling, interpolation or replacement that those skilled in the art make in essential scope of the present utility model, also should belong to protection domain of the present utility model.
Claims (3)
1. a disposable blood taking needle, comprise needle tubing, piston and syringe needle, it is characterized in that, described needle tubing and syringe needle external activity are provided with shell, described piston one end stretch out described shell and and described shell between be provided with spring, between described shell and described needle tubing, be provided with the block that the power that set value just can come off; Described needle tubing is also connected with reed, and the corresponding described reed of described outer casing inner wall is provided with groove, and described shell is also provided with the through hole one passing through for syringe needle.
2. disposable blood taking needle according to claim 1, is characterized in that, described side wall of outer shell is provided with through hole two, and described block one end is connected with the edge of described through hole two.
3. disposable blood taking needle according to claim 1 and 2, is characterized in that, described shell comprises the shell one and the shell two that are threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420024003.4U CN203634179U (en) | 2014-01-15 | 2014-01-15 | Disposable blood lancet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420024003.4U CN203634179U (en) | 2014-01-15 | 2014-01-15 | Disposable blood lancet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203634179U true CN203634179U (en) | 2014-06-11 |
Family
ID=50865469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420024003.4U Expired - Fee Related CN203634179U (en) | 2014-01-15 | 2014-01-15 | Disposable blood lancet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203634179U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109316193A (en) * | 2018-10-02 | 2019-02-12 | 王建美 | Disposable micro negative pressure hemostix hemospast |
-
2014
- 2014-01-15 CN CN201420024003.4U patent/CN203634179U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109316193A (en) * | 2018-10-02 | 2019-02-12 | 王建美 | Disposable micro negative pressure hemostix hemospast |
| CN109316193B (en) * | 2018-10-02 | 2021-07-16 | 珠海市康利莱医疗器械有限公司 | Disposable micro negative pressure blood collection device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20170115 |