CN203354552U - Disposable artery blood sampling device - Google Patents
Disposable artery blood sampling device Download PDFInfo
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- CN203354552U CN203354552U CN 201320427175 CN201320427175U CN203354552U CN 203354552 U CN203354552 U CN 203354552U CN 201320427175 CN201320427175 CN 201320427175 CN 201320427175 U CN201320427175 U CN 201320427175U CN 203354552 U CN203354552 U CN 203354552U
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- Prior art keywords
- needle
- blood sampling
- syringe
- syringe needle
- artery blood
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Abstract
The utility model relates to a disposable artery blood sampling device which comprises a needle cylinder, a piston and a push rod, wherein the piston is arranged in the needle cylinder, and the push rod is connected onto the piston. A needle is fixed at the front end of the needle cylinder, the periphery of the needle closely covers a transparent elastic soft sleeve, the elastic soft sleeve shrinks towards one side of the needle cylinder under the action of external force applied axially along the needle, so that the front end of the needle is exposed, and the elastic soft sleeve stretches and covers the needle again after the external force vanishes. When the needle needs to stab into a human body, the elastic soft sleeve shrinks towards one side of the needle cylinder as skin applies axial pressure to the elastic soft sleeve, the front end of the needle is exposed and enters an artery, the elastic soft sleeve stretches and covers the needle again after the needle is pulled out from the human body when blood sampling is finished, air cannot contact with blood, medical staff can directly analyze the blood without using an extra rubber plug or perform other treatment for the needle, and the disposable artery blood sampling device is simple and convenient to operate and applicable to artery blood sampling for the human body.
Description
Technical field
This utility model relates to armarium, particularly a kind of disposable artery blood sampling equipment.
Background technology
Disposable arterial blood drawing pin is clinical a kind of medical supplies that gather blood from human body artery commonly used, for the collection of clinical human body artery blood, carries out blood sample analysis.Its basic blood collection procedure is as follows: after first extracting the moistening syringe of a small amount of heparin, drain; The blood drawing of selection tremulous pulse; Pull out after pin immediately with the rubber closure blockade needle to completely cut off air, in order to avoid enter air in blood sample, make measurement data produce error.
And in hospital, the general rubber closure of using without the special arterial blood drawing pin be equipped with, medical personnel are inserted to the arterial blood drawing syringe needle in the rubber closure that medical test tubes is equipped with, so not only wasted a test tube, even in this operating process, likely make a fault, cause syringe needle damage, syringe needle to problems such as medical personnel damage.
The utility model content
In order to overcome above-mentioned technical problem, the purpose of this utility model is to provide a kind of disposable artery blood sampling equipment, uses this blood-taking device to make simple to operate, without the optional equipment rubber closure.
The technical scheme that this utility model adopts is:
A kind of disposable artery blood sampling equipment, comprise the piston in syringe, syringe and be connected to the push rod on piston, the front end of described syringe is fixed with syringe needle, described syringe needle periphery is close to and is coated with the soft cover of transparent elasticity, the soft cover of described elasticity be subject to along needle shaft to External Force Acting the time shrink the syringe needle front end exposed to syringe one side, after external force disappears, the soft cover of elasticity stretches and again covers syringe needle.
As further improvement in the technical proposal, the soft cover of described elasticity comprises the part of extending to syringe needle the place ahead.
As further improvement in the technical proposal, the length of described syringe needle is not less than 2.5cm.
As further improvement in the technical proposal, the length of described syringe needle is 3cm.
As further improvement in the technical proposal, the soft cover of described elasticity is made by transparent medical grade rubber.
As further improvement in the technical proposal, in described syringe, anticoagulant is housed.
As further improvement in the technical proposal, described syringe is provided with some scales, and maximum scale value is 5mL.
The beneficial effects of the utility model are: the syringe needle periphery is close to and has been covered the soft cover of elasticity, at syringe needle, need to prick in human body the time, because skin has applied axial pressure to the soft cover of elasticity, thereby make the soft cover of elasticity to syringe one side contraction, the syringe needle front end be exposed and enter tremulous pulse, and when having taken a blood sample syringe needle from human body is extracted, the soft cover of elasticity stretches and again covers syringe needle, completely cut off contacting of air and blood, medical personnel are without using extra rubber closure, also without syringe needle being done to other processing, can directly to blood, be analyzed, it is simple to operation.
The accompanying drawing explanation
Below in conjunction with drawings and embodiments, this utility model is further illustrated.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic diagram of this utility model blood sampling state.
The specific embodiment
As shown in Figure 1, a kind of disposable artery blood sampling equipment comprises the piston 2 in syringe 1, syringe 1 and is connected to the push rod 3 on piston 2 that the front end of syringe 1 is fixed with syringe needle 4, and the blood taking needle structure that this part and Hospitals at Present are used is basically identical.Be close to and be coated with the soft cover 5 of transparent elasticity in syringe needle 4 peripheries, before for use, the soft cover 5 of this elasticity wraps the outer wall of whole syringe needle 4, because it has elasticity, therefore in the situation that, without External Force Acting, the friction between the soft cover 5 of elasticity and syringe needle 4 makes it can not come off from syringe needle 4.
The soft cover 5 of elasticity is tubulose, and in when blood sampling, the front end of the soft cover 5 of elasticity first contacts human body skin, and is subject to compression after the pressure-acting of the skin axial along syringe needle 4, to syringe 1 one sides, shrinks and makes syringe needle 4 front ends expose and penetrate in human body, forms as shown in Figure 2; After blood sampling finishes, syringe needle 4 is extracted, and the soft cover 5 of elasticity leaves human body, and skin disappears to its pressure, and the soft cover 5 of elasticity stretches and again covers syringe needle 4, prevents that air from passing through syringe needle 4 and contacting with blood, forms as shown in Figure 1.
As preferred embodiment, the soft cover 5 of elasticity, except the part that is positioned at syringe needle 4 outer walls, also comprises the part of extending to syringe needle 4 the place aheads, makes syringe needle 4 be not easy to expose, so the soft cover 5 of elasticity has also played the effect of protection syringe needle 4 simultaneously.
As preferred embodiment, due to the needed extra length of distortion that will consider the soft cover 5 of elasticity, so the length of syringe needle 4 is not less than 2.5cm, and optimum length is 3cm.
As preferred embodiment, the soft cover 5 of elasticity is made by transparent medical grade rubber, and this is material more commonly used in current medical field.
As preferred embodiment, in syringe 1, anticoagulant is housed, the heparin sodium that this anticoagulant is 0.1mL.The anticoagulant set in advance in syringe 1 has been removed before medical personnel take a blood sample the operation that must extract in advance the moistening syringe 1 of heparin from, has further strengthened the comfort level of operation.
As preferred embodiment, what this syringe 1 adopted is the capacity of 5mL, and syringe 1 is provided with some scales, and maximum scale value is 5mL.
The above be this utility model preferred embodiment, it does not form the restriction to this utility model protection domain.
Claims (7)
1. a disposable artery blood sampling equipment, comprise the piston (2) in syringe (1), syringe (1) and be connected to the push rod (3) on piston (2), the front end of described syringe (1) is fixed with syringe needle (4), it is characterized in that: described syringe needle (4) periphery is close to and is coated with the soft cover of transparent elasticity (5), shrink syringe needle (4) front end is exposed to syringe (1) one side when the soft cover of described elasticity (5) is subject to the External Force Acting axial along syringe needle (4), after external force disappears, the soft cover of elasticity (5) stretches and again covers syringe needle (4).
2. disposable artery blood sampling equipment according to claim 1 is characterized in that: the soft cover of described elasticity (5) comprises the part of extending to syringe needle (4) the place ahead.
3. disposable artery blood sampling equipment according to claim 1, it is characterized in that: the length of described syringe needle (4) is not less than 2.5cm.
4. disposable artery blood sampling equipment according to claim 3, it is characterized in that: the length of described syringe needle (4) is 3cm.
5. according to the described disposable artery blood sampling equipment of any one in claim 1 to 4, it is characterized in that: the soft cover of described elasticity (5) is made by transparent medical grade rubber.
6. according to the described disposable artery blood sampling equipment of any one in claim 1 to 4, it is characterized in that: described syringe is equipped with anticoagulant in (1).
7. according to the described disposable artery blood sampling equipment of any one in claim 1 to 4, it is characterized in that: described syringe (1) is provided with some scales, and maximum scale value is 5mL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320427175 CN203354552U (en) | 2013-07-17 | 2013-07-17 | Disposable artery blood sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320427175 CN203354552U (en) | 2013-07-17 | 2013-07-17 | Disposable artery blood sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203354552U true CN203354552U (en) | 2013-12-25 |
Family
ID=49802393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320427175 Expired - Fee Related CN203354552U (en) | 2013-07-17 | 2013-07-17 | Disposable artery blood sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203354552U (en) |
-
2013
- 2013-07-17 CN CN 201320427175 patent/CN203354552U/en not_active Expired - Fee Related
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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: 20131225 Termination date: 20150717 |
|
| EXPY | Termination of patent right or utility model |