CN208905641U - A kind of lower press-type painless safe blood taking needle - Google Patents
A kind of lower press-type painless safe blood taking needle Download PDFInfo
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- CN208905641U CN208905641U CN201721235201.5U CN201721235201U CN208905641U CN 208905641 U CN208905641 U CN 208905641U CN 201721235201 U CN201721235201 U CN 201721235201U CN 208905641 U CN208905641 U CN 208905641U
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- taking needle
- blood taking
- spring
- cap
- shell
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Abstract
The utility model discloses a kind of lower press-type painless safe blood taking needles, including, cap, shell, triggering set, blood taking needle and spring；One end of shell, which fastens, cap, and the other end of shell is built-in with triggering set and blood taking needle；Spring is mounted between blood taking needle bottom and cap with original state；The spring-loaded cylinder of peace is installed or be formed in the inside of cap, and the spring-loaded conical mounting groove of peace is installed or be formed in blood taking needle bottom.Beneficial effect is: since spring is in original state always, only just enter half preloading condition when preparing operation, it triggers while being compressed, guarantee that spring will not cause spring to be decayed because of permanent compression, spring stability is good, therefore speed is consistent when can effectively ensure that ejection, and touch pressure is small, user's pain is small, and comfort level increases；In addition, the blood taking needle space layout is reasonable, component is few, assembling and the cost of raw material have significantly been saved.
Description
Technical field
The utility model relates to a kind of medical instruments；More particularly to a kind of lower press-type painless safe blood taking needle.
Background technique
Safe blood-taking needle is the Medical blood collecting device for taking tip micro blood, is exclusively in the primary of medical department
The tip micro blood collection device that property uses, diabetic or other users also can be used it and take tip micro blood sample
This is to detect blood glucose.
Each safe blood-taking needle has oneself a set of independent catapult-launching gear.It is medical both at home and abroad at present mainly to have in the market
The safe blood-taking needle of two kinds of forms, one is pressing safety blood taking needle, trigger actuation surface not directly with blood sampling site skin
Skin is in contact, and structure is relatively easy, and cost is relatively low, but using inconvenient.Another kind is press-type safe blood-taking needle, user
Just, the triggering actuation surface of press-type safty pin is directly in contact with blood sampling site, by pressing safe blood-taking needle, makees triggering
Dynamic column is subjected to displacement ejection mechanism inside triggering safty pin, so that internal blood taking needle is carried out ejection and takes blood, punctures after skin quickly
It retracts, after the completion of taking blood, safe blood-taking needle is abandoned to prevent the hidden danger of cross-reference, meet disposable purpose；But
Existing press-type safety blood taking needle part is more, higher cost, and the spring of especially internal pressing part is in precompressed always
Contracting state, when the elastic force of spring of non-used time for a long time because of fatigue and then can decay, when ejection, acts relative delay, and user keenly feels meeting
Deepen.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the shortage of prior art, and provides one kind and remains ejection
Speed, the lower press-type painless safe blood taking needle that structure is simple, trigger force is small, comfort level is high.
The technical scheme adopted by the utility model is a kind of lower press-type painless safe blood taking needle, including, it is cap, outer
Shell, triggering set, blood taking needle and spring；One end of the shell, which fastens, cap, and the other end of shell is built-in with triggering set and adopts
Blood needle；The spring is mounted between blood taking needle bottom and cap with original state.
Install or be formed with the spring-loaded cylinder of peace, the blood taking needle bottom installation or one in the inside of the cap
It is formed with the spring-loaded conical mounting groove of peace.
The blood taking needle includes that pre-buried staight needle core is vinyon.
Blood taking needle front and rear sides center respectively forms a guide rail, triggers the inside position shape compatible with guide rail of set
At fluted；Blood taking needle and triggering set clearance fit.
The cap two sides are formed with detent outstanding, and interior of shell is formed with the compatible card slot of cap detent, guarantee
Cap is reliably fixed with shell.
The interior of shell is formed with the positive stop lug boss of triggering set.
Blood taking needle lower, outer perimeter face is formed with a flange；Triggering set lower part is formed with two or more convex
The elastic arm of point；Flange on blood taking needle limits triggering set elastic arm.
The beneficial effects of the utility model are: since spring is in original state always, only when preparation operates Shi Caijin
Enter half preloading condition, trigger while being compressed, guarantees that spring will not cause spring to be decayed because of permanent compression, spring stability
Well, speed is consistent when therefore can effectively ensure that ejection, and touch pressure is small, and user's pain is small, and comfort level increases；In addition, the blood sampling
Needle space layout is reasonable, component is few, has significantly saved assembling and the cost of raw material.
Detailed description of the invention
Fig. 1 is the cross-sectional view of press-type painless safe blood taking needle under the utility model.
In figure:
1. 2. shell 3. of cap triggering set 4. blood taking needle, 5. spring.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description:
As shown in Figure 1, a kind of lower press-type painless safe blood taking needle of the utility model, including, cap 1, shell 2, triggering
Set 3, blood taking needle 4 and spring 5；One end of the shell 2, which fastens, cap 1, and the other end of shell 2 is built-in with triggering set 3 and adopts
Blood needle 4；The spring 5 is mounted between blood taking needle bottom and cap 1 with original state.
Install or be formed with the spring-loaded cylinder of peace, the blood taking needle bottom installation or one in the inside of the cap 1
Body is formed with the spring-loaded conical mounting groove of peace, and spring 5 is installed between.1 two sides of cap are formed with outstanding
Detent is formed with the compatible card slot of 1 detent of cap inside shell 2, guarantees that cap 1 is reliably fixed with shell 2.The shell 2
Inside is formed with the positive stop lug boss of triggering set 3.The 4 front and rear sides center of blood taking needle respectively forms a guide rail, triggers the interior of set 3
Portion position compatible with guide rail forms fluted；Blood taking needle 4 and triggering 3 clearance fits of set.The 4 lower, outer perimeter face of blood taking needle
It is formed with a flange；The triggering covers 3 lower parts and is formed with the elastic arm with two or more salient points；Flange on blood taking needle 4
Triggering 3 elastic arms of set are limited.The blood taking needle 4 includes that pre-buried staight needle core is vinyon special plastic i.e. as straight
The carrier of needle core plays the role of protecting needle point again；The needle handle part of blood taking needle has inside two limit salient points and triggering set top
Contact is fixed.
The working principle of press-type painless safe blood taking needle is under the utility model: rotation draws off blood taking needle needle handle first,
Blood taking needle can be moved to naturally the positive stop end of triggering set, the i.e. elastic arm of the flange of blood taking needle and triggering set with the pressure of spring
Top is in contact and limits, and safe blood-taking needle, which is in, at this time prepares excited state.
Safe blood-taking needle is held, triggering set top is in contact with blood sampling site skin, gently presses down on, triggers at this time
Set drives blood taking needle to move downward, and compressed spring；Connect when moving to cap lower part installation cylinder with blood taking needle tail surface
Stop after touch.Such as continue to touch triggering set downwards, then the elastic arm for triggering set two sides is flared out, when being flared to blood taking needle or more
The flange of two sides can by when, blood taking needle excitation.
After safe blood-taking needle ejection, transmitting is completed in rebound to blood taking needle rapidly under the drive of spring.Triggering covers after transmitting
In free state, reset Secondary Emission can not be carried out again.
Claims (6)
1. a kind of lower press-type painless safe blood taking needle, which is characterized in that including cap (1), triggering set (3), is adopted shell (2)
Blood needle (4) and spring (5)；One end of the shell (2), which fastens, to be had cap (1), and the other end of shell (2) is built-in with triggering set
(3) and blood taking needle (4)；The spring (5) is mounted between blood taking needle bottom and cap (1) with original state；The cap (1)
Inside installation or be formed with the spring-loaded cylinder of peace, the blood taking needle bottom installation or to be formed with peace spring-loaded
Conical mounting groove.
2. lower press-type painless safe blood taking needle according to claim 1, which is characterized in that the blood taking needle (4) includes
Pre-buried staight needle core is vinyon.
3. lower press-type painless safe blood taking needle according to claim 1, which is characterized in that before and after the blood taking needle (4)
Two sides center respectively forms a guide rail, and the inside position compatible with guide rail of triggering set (3) forms fluted；Blood taking needle (4)
(3) clearance fit is covered with triggering.
4. lower press-type painless safe blood taking needle according to claim 1, which is characterized in that cap (1) two sides shape
At there is detent outstanding, it is formed with the compatible card slot of cap (1) detent inside shell (2), guarantees cap (1) and shell (2)
It is reliably fixed.
5. lower press-type painless safe blood taking needle according to claim 1, which is characterized in that the internal shape of the shell (2)
At the positive stop lug boss for having triggering set (3).
6. lower press-type painless safe blood taking needle according to claim 1, which is characterized in that blood taking needle (4) lower part
Outer peripheral surface is formed with a flange；The triggering set (3) lower part is formed with the elastic arm with two or more salient points；Blood taking needle
(4) flange on limits triggering set (3) elastic arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721235201.5U CN208905641U (en) | 2017-09-25 | 2017-09-25 | A kind of lower press-type painless safe blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721235201.5U CN208905641U (en) | 2017-09-25 | 2017-09-25 | A kind of lower press-type painless safe blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208905641U true CN208905641U (en) | 2019-05-28 |
Family
ID=66611814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721235201.5U Active CN208905641U (en) | 2017-09-25 | 2017-09-25 | A kind of lower press-type painless safe blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208905641U (en) |
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2017
- 2017-09-25 CN CN201721235201.5U patent/CN208905641U/en active Active
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