CN208096749U - New disposable hemostix - Google Patents

Abstract

A kind of new disposable hemostix, including shell, needle core, spring and push away hair device, it is characterised in that：Push away hair device tail portion, which extends back, is provided at least two Spring pins, and Spring pins are equipped with grab and the first bending point and the second bending point；Shell is equipped with inclined-plane and blocking surface, and elastic clip is collectively formed in all elastic pin, and needle core is located in elastic clip by clip；Hemostix head is pressed when use, push away hair device moves backward, and Spring pins and inclined-plane and blocking surface, which are met head-on, makes the first bending point laterally outwardly arch upward deformation, and needle core emits puncture under the action of the spring after arching upward to grab with snap-latch surface unhook critical point.This programme breaches the operating mode that original inclined-plane forces elastic clip end to be opened, having founded inclined-plane first forces elastic clip end inwardly to close up, then the mode to arch upward outward in the middle part of elastic clip under the axial press effect of blocking surface, its effect is the reduction of number of parts, structure is simplified, is reduced costs.

Description

New disposable hemostix

Technical field

The utility model relates to medical blood taking instrument field, in particular to a kind of head push type one of included ejection mechanism The safe hemostix that secondary property uses（Or blood taking needle）.The hemostix is simple as disposable product structure, reliable operation, Product price is low, has market competition potentiality.

Background technique

In medical blood taking field, disposable blood taking device is small in size with its, is cured deeply using safe, easy to operate for characteristic Shield personnel and patient welcome, and largely use in each medical institutions and diabetic at present.The included ejection of this hemostix Mechanism, compact-sized, overall time uses, safe and convenient, therefore has stronger market development potential.

Chinese patent CN2619583Y once announced authorize one it is entitled《Self-locking type disposable safe automatic blood-taking needle》 Utility model patent.The patent gives a kind of representative traditional nut cap type head push type disposable blood taking device. Its structure is made of six shell, end cap, needle core, spring, push away hair device and nut cap parts.In the assembled condition, nut cap is sleeved on Hemostix head, end cap are equipped with a pair of of elastic claw, which picks up the ears to block using grab and chucking power by needle core two sides, Spring presses against between end cap and needle core, and when hemostix head is depressed, push away hair device moves rearwardly through inclined-plane and meets two head-on A elastic claw simultaneously forces elastic claw to open, and breaks off relations to cause needle core and generates shooting puncture under the promotion of spring.

Chinese patent CN205107692U bulletin authorize one it is entitled《Modified Head push type is disposably taken a blood sample Device》Utility model patent.The attached drawing 1 of the patent to attached drawing 4 give a kind of representative tradition turn round shape for hat head by Pressure type disposable blood taking device.Its basic structure and working principle are similar with above-mentioned Chinese patent CN2619583Y, difference It is：Hemostix head will first twist torsion cap using the structure type for turning round cap, when use, make the neck between needle core and guard bar Then fracture pulls out guard bar and turns round cap.

With the development in market, disposable medical hemostix product is varied, but from the point of view of overall development trend, market Acceptance have turned into that low, structure is simple completely with product price and reliable operation is guiding.Above-mentioned two class head push type one Secondary property hemostix is all made of five to six parts, and in contrast number of parts is more, and structure is relative complex, manufacturing cost compared with It is high.Therefore how on this basis, amount of parts is reduced, manufacturing cost is reduced, simplifies structure design, it is reliable to improve product Property, reinforce the Future Development direction that user experience is this kind of product.

Summary of the invention

In view of above the shortcomings of the prior art, the utility model provides a kind of new disposable hemostix, purpose It is to solve that above-mentioned hemostix components are more, and structure is complicated, problem at high cost.

In order to achieve the above objectives, the technical solution adopted in the utility model is：A kind of new disposable hemostix, including it is outer Shell, needle core, spring and push away hair device.

Before transmission under assembled state, needle core is positioned inside the shell by clip, and spring presses against on needle core, the elasticity of spring Power acts on the direction of ejection of needle core, and push away hair device head is stretched out from case nose, and push away hair device body is slidably connected in the shell.

Its innovation is：The push away hair device tail portion, which extends back, is provided at least two Spring pins, and Spring pins are bullet Property cantilever design, the end of cantilever is effect end；The Spring pins are equipped with the grab for being used to lock needle core；The elasticity is drawn Foot is separated by along length direction equipped with the first bending point and the second bending point, and the first bending point and the second bending point are bendings When Spring pins on occur stress concentrate fatigue point；On the basis of acting on end, second bending point to the distance for acting on end Greater than the first bending point to the distance for acting on end；The grab is located near the first bending point on Spring pins length direction.

The effect end of the corresponding Spring pins is equipped with inclined-plane inside the shell, which is equipped with blocking surface；The inclined-plane Inclined direction when meeting Spring pins effect end head-on, effect end can be forced to one section of Spring pins of the first bending point to institute State the center curvature of hemostix cross section.

The corresponding grab is equipped with snap-latch surface on needle core, and the snap-latch surface and grab cooperation are used to lock needle core.

Before transmission under assembled state, an elastic clip is collectively formed in all elastic pin, and the needle core is positioned by clip In elastic clip, wherein the snap-latch surface cooperation on the grab and needle core on Spring pins is in the lock state needle core；It is described Spring pins are arranged in inclined-plane front, wherein the effect end of Spring pins is head-on arranged in front of inclined-plane.

In a state of use, when push away hair device head is depressed, push away hair device opposite shell is moved backward, oblique in shell The corresponding effect end for meeting respective Spring pins head-on in face simultaneously forces all elastic pin effect end to one section of the first bending point to institute State the center curvature of hemostix cross section, at the same the effect end of Spring pins along inclined-plane slide onto blocking surface after be obstructed, hinder at this time Block face generates press effect to Spring pins, and all elastic pin is finally forced to be bent at the first bending point and the second bending point Or bending, so that the first bending point of Spring pins is laterally outwardly arched upward deformation, when all elastic pin arch upward to grab with engage Needle core emits puncture under the action of the spring after emaciated face hook critical point.

The related content and change interpretation of above-mentioned technical proposal are as follows：

1. in above scheme, " shell ", " needle core ", " spring " and " push away hair device " is that head push type is disposably taken a blood sample The basic structure of device, basic function and effect are the prior art, be may refer to cited in the utility model background technique Technology contents.

2. in above scheme, " preceding " in " front end ", " front " and " front " refers to needle point meaning side in hemostix To." rear " in " backward " refers to the opposite direction of " preceding "." the push away hair device head " refers to push away hair device end facing forward, and " the push away hair device tail portion " refers to the end of push away hair device backwards.

3. in above scheme, " inclined-plane " includes plane, cambered surface or the conical surface, however, how with respect to hemostix axis It is obliquely installed, to constitute inclined-plane.In other words, inclined-plane has the inclined-plane of the inclined-plane of plane form, concave form（Inclining on inclined-plane It is made of on tilted direction multistage straight line, is upwardly formed concave surface or convex surface, but essence or inclined-plane in vertical tilt side）, cone-shaped The inclined-plane of formula and the inclined-plane of cambered surface form（Inclined-plane is in an inclined direction made of at least one section of concave arc or/and convex arc, but essence is also It is inclined-plane）Four seed types.It is any applicable in the present invention, it can specifically determine according to the actual situation.Wherein, The first is the inclined-plane of plane form；It is for second the inclined-plane of concave form；The third is the inclined-plane of conical surface form；4th kind is The inclined-plane of cambered surface form.

4. the utility model head push type disposable blood taking device includes to turn round two kinds of structures of shape for hat and nut cap type.I.e. this is practical New disposable hemostix usual situation has protective cap, and the structure type of protective cap can be using torsion shape for hat or nut cap Type.This has no effect on realization the object of the invention.

The design principle of the utility model and design are：In order to simplify structure, cost is reduced, the utility model is in existing skill Following change has been made on the basis of art：First, original shell is merged into a single whole with end cap, i.e., by original shell A component is merged into end cap two pieces component；Second, it will be located at the elastic clip on shell or end cap originally（For locking pin Core）Change and is located at push away hair device tail portion；Originally the inclined-plane being located in push away hair device is changed and is set on the shell by third；4th, it is improved oblique Face is equipped with blocking surface, wherein blocking surface plays press to elastic clip end；5th, force elastic clip last on original inclined-plane End opens to realize that needle core unlocks outward, is changed to inclined-plane and elastic clip end is forced first to close up inwardly, then in blocking surface Axial press act on and arching upward in the middle part of lower elastic clip, to realize that needle core unlocks.

Due to the application of the above technical scheme, the utility model has the following advantages that and effect compared with prior art：

1. the utility model except spring and in addition to, as long as three shell, needle core and push away hair device structural members, and these three structures Part is easier through mold injection molding, at least saves a structural member compared with prior art.From mass production angle From the point of view of degree, structure is not only simplified, and manufacturing cost can be further decreased.

Elastic claw end is forced to be opened outward using inclined-plane originally to realize that needle core unlocks 2. the utility model breaches Mode, and founded using inclined-plane force elastic clip end first close up inwardly, then blocking surface axial press act on It arches up in the middle part of lower elastic clip and realizes the mode of needle core unlock.Just because of this innovation, which changes elastic clip, is located at push away hair device On, it so that the internal structure of shell be made to greatly simplify, can be realized, be not required to using seperated splicing knot using integrated injection molding Structure is realized.

3. there is essential distinction on the inclined-plane and inclined-plane in the prior art in the utility model：First, in the prior art tiltedly Face is each provided in push away hair device, and inclined-plane is set on the shell in the utility model；Second, do not stop on inclined-plane in the prior art Face, and inclined-plane is equipped with blocking surface in the utility model；Third, the inclined direction on inclined-plane forces elastic clip outside in the prior art It opens, and the inclined direction on inclined-plane forces elastic clip end inwardly to close up in the utility model, then on the axial direction top of blocking surface Pressure acts on to arch upward outward in the middle part of lower elastic clip, after elastic clip middle part is arched upward outward is expanded to grab and snap-latch surface unhook critical point Needle core emits puncture under the action of the spring.

4. the utility model reasonable utilization elastic clip end inwardly closes up under ramp effect, then in blocking surface Axial press, which acts on arching up outward in the middle part of lower elastic clip, realizes that needle core unlocks, and technical concept is ingenious, reliable operation, when operation Feel is light and handy, has broken in previous conventional, prior art, and the operating mode that inclined-plane forces elastic clip end to be opened has founded inclined-plane Elastic clip end is first forced inwardly to close up, the mode then to arch upward outward in the middle part of elastic clip under the axial press effect of blocking surface （See Figure 18, Figure 19 and Figure 20）, therefore there is substantive distinguishing features outstanding and significant progress.

Detailed description of the invention

Fig. 1 is 1 perspective view of the utility model embodiment；

Fig. 2 is 1 stereogram exploded view of the utility model embodiment；

Fig. 3 is 1 needle core of the utility model embodiment and torsion the first view stereo of cap figure；

Fig. 4 is 1 needle core of the utility model embodiment and torsion the second view stereo of cap figure；

Fig. 5 is 1 push away hair device the first view stereo figure of the utility model embodiment；

Fig. 6 is 1 push away hair device the second view stereo figure of the utility model embodiment；

Fig. 7 is 1 shell the first view stereo figure of the utility model embodiment；

Fig. 8 is 1 shell the second view stereo figure of the utility model embodiment；

Fig. 9 is 1 shell partial cutaway perspective view of the utility model embodiment；

Figure 10 is the initial assembled state cross-sectional view of the utility model embodiment 1；

Figure 11 is the partial cutaway perspective view of Figure 10 state；

Figure 12 is the partial sectional view of Figure 10 state；

Figure 13 is pressing push away hair device state cross-sectional view after 1 removal needle cap of the utility model embodiment；

Figure 14 is the partial cutaway perspective view of Figure 13 state；

Figure 15 is the partial sectional view of Figure 13 state；

Figure 16 is 1 needle core unhook state cross-sectional view of the utility model embodiment；

Figure 17 is state cross-sectional view after the utility model embodiment 1 emits；

Figure 18 is the utility model needle core unhook schematic diagram A；

Figure 19 is the utility model needle core unhook schematic diagram B；

Figure 20 is the utility model needle core unhook schematic diagram C；

Figure 21 is 2 perspective view of the utility model embodiment；

Figure 22 is 2 stereogram exploded view of the utility model embodiment；

Figure 23 is the initial assembled state cross-sectional view of the utility model embodiment 2；

Figure 24 is that the utility model embodiment 2 adjusts header structure stereogram exploded view.

Label declaration in the figures above is as follows：

1. shell；2. needle core；3. spring；4. push away hair device；5. Spring pins；6. grab；7. the first bending point；8. engaging Face；9. the second bending point；10. inclined-plane；11. turning round cap；12. hook；13. shoulder block；14. inner face；15. adjusting head；16. stopping Face；17. acting on end；S. offset or dish.

Specific embodiment

The utility model is further described with reference to the accompanying drawings and embodiments：

Embodiment 1：A kind of new disposable hemostix（Turn round shape for hat head push type disposable blood taking device）

As shown in Fig. 1-Figure 12, which is made of shell 1, torsion cap 11, needle core 2, spring 3 and push away hair device 4 （See Fig. 1 and Fig. 2）.Wherein, needle core 2 and torsion cap 11 are integrated injection molding structure（See Fig. 3 and Fig. 4）, a portion can be can be regarded as Part.

Before transmission under assembled state（See Figure 10）, needle core 2 is located in shell 1 by clip, and spring 3 presses against needle core 2 On, for the resilient force of spring 3 on the direction of ejection of needle core 2,2 front of needle core is equipped with integrally formed torsion cap 11, push away hair device 4 Head is stretched out from 1 front end of shell, and 4 body of push away hair device is slidably connected in shell 1.

The above content of the present embodiment is the prior art, and the innovation of the utility model is：4 tail portion of push away hair device is backward Spring pins 5 there are four being extended（See Fig. 5 and Fig. 6）, Spring pins 5 are elastic cantilever structure, and the end of cantilever is effect End 17.In four Spring pins 5, the root of Spring pins 5 is conjoined structure two-by-two, is all provided on the medial surface of Spring pins 5 There is the grab 6 for locking pin core 2.In the present embodiment, two Spring pins 5 share a grab 6（See Fig. 5 and Fig. 6）.Institute It states Spring pins 5 to be separated by along length direction equipped with the first bending point 7 and the second bending point 9, the first bending point 7 and second is curved The fatigue point of stress concentration is easy to happen when song point 9 is bending on Spring pins 5.On the basis of acting on end 17, described second The distance at bending point 9 to effect end 17 is greater than the distance of the first bending point 7 to effect end 17.The grab 6 is long in Spring pins 5 It spends on direction and is located near the first bending point 7.In the present embodiment, grab 6 be located at the first bending point 7 and the second bending point 9 it Between, and on the position of the first bending point 7（See Figure 18, Figure 19 and Figure 20）.

The effect end 17 of the corresponding Spring pins 5 is equipped with inclined-plane 10 in shell 1（See Fig. 7, Fig. 9 and Figure 10）, this is tiltedly Face 10 is equipped with blocking surface 16.The inclined direction on the inclined-plane 10 can force effect when meeting the effect end 17 of Spring pins 5 head-on Hold center curvature of the one section of Spring pins 5 of 17 to the first bending points 7 to the hemostix cross section（See Figure 18, Figure 19 and figure 20）.In Figure 20, S indicates the offset or dish between Spring pins 5 and blocking surface 16, the offset or dish size, cross sectional form, The elasticity effect axial push feel of cross-sectional area size and material.

The corresponding grab 6 is equipped with snap-latch surface 8 on needle core 2（See Fig. 3 and Fig. 4）, which matches with grab 6 shares To lock needle core 2（See Figure 10）.

4 side of push away hair device is equipped with hook 12 and shoulder block 13（See Fig. 5 and Fig. 6）, the corresponding hook 12 and shoulder block 13 exist 1 inner wall of shell is equipped with inner face 14（See Figure 10）, hook 12 and inner face before transmission under assembled state, in push away hair device 4 14 cooperatively form the first limit, to prevent 4 opposite shell 1 of push away hair device from moving forward.

Action process is as follows when the present embodiment uses：

（1）Initial assembled state

As shown in Figure 10, Figure 11 and Figure 12, entire hemostix is by shell 1, torsion cap 11, needle core 2, spring 3 and 4 groups of push away hair device At, wherein spring 3 is in preloading condition, and before transmission under assembled state, an elastic clip is collectively formed in all elastic pin 5, The needle core 2 is located in elastic clip by clip, wherein and the snap-latch surface 8 on grab 6 and needle core 2 on Spring pins 5 cooperates, It is in the lock state needle core 2.The Spring pins 5 are arranged in 10 front of inclined-plane, wherein meet at the effect end 17 of Spring pins 5 Face setting is in 10 front of inclined-plane.Hook 12 and inner face 14 in push away hair device 4 cooperatively form the first limit, to prevent push away hair device 4 Opposite shell 1 moves forward.

（2）Push away hair device state is pressed after removal needle cap

As shown in Figure 13, Figure 14 and Figure 15, a hand holds hemostix shell 1, and another hand is reversed and dialled except torsion cap 11. Then, hand-held housing 1 presses hemostix head alignment blood sampling site, when 4 head of push away hair device is depressed, 4 phase of push away hair device Shell 1 is moved backward.

（3）Needle core unhook state

As shown in Figure 16, Figure 18 and Figure 19, as push away hair device 4 is held after moving backward, the correspondence of inclined-plane 10 in shell 1 is met head-on The effect end 17 of respective Spring pins 5 simultaneously forces one section of all elastic effect of pin 5 17 to the first bending point 7 of end to adopt to described The center curvature of blood device cross section, at the same the effect end 17 of Spring pins 5 along inclined-plane 10 slide onto blocking surface 16 after be obstructed, at this time Blocking surface 16 generates press effect to Spring pins 5, finally forces all elastic pin 5 in the first bending point 7 and the second bending Bending or bending at point 9（See Figure 18, Figure 19 and Figure 20）, so that the first bending point 7 of Spring pins 5 is laterally outwardly arched upward deformation, Needle core 2 is issued in the effect of spring 3 after all elastic pin 5 arches upward to grab 6 with 8 unhook critical point of snap-latch surface is shot through thorn.

（4）State after transmitting

As shown in figure 17, needle core 2 is in puncture state, then retracts in shell 1.Shoulder block 13 and inner end in push away hair device 4 Face 14 cooperatively forms the second limit, to prevent 4 opposite shell 1 of push away hair device from retracting, makes at 4 head opposite shell of push away hair device, 1 head In concordant or indentation state.

Embodiment 2：A kind of band adjusts the new disposable hemostix of header structure（The included torsion shape for hat head pressing for adjusting head Formula disposable blood taking device）

As shown in Figure 21-Figure 24, the hemostix is by shell 1, adjusting head 15, torsion cap 11, needle core 2, spring 3 and push away hair device 4 Composition（See Figure 21 and Figure 22）.

The present embodiment the difference from embodiment 1 is that：1 head of shell is equipped with 15 knot of adjusting head that can change paracentesis depth Structure.And can change paracentesis depth adjusting head 15 can using the prior art, such as using application No. is 201610158481.8 publication No. CN105816188A, entitled《The disposable depth-adjustable needle insertion safety blood taking of modified Needle》Chinese patent application disclosed in structure, or use Patent No. 201620212700.1, Authorization Notice No. is CN205586011U, it is entitled《Improved disposable safety blood taking needle capable of adjusting puncture depth》Chinese patent disclosed in knot Structure is not described in detail herein.

Other contents are same as Example 1, and description is not repeated herein.

Other performances and variation below for the utility model are explained as follows：

1. above embodiments 1 are although what is provided is to turn round shape for hat head push type disposable blood taking device, the utility model is not It is confined to this, is also applied for nut cap type head push type disposable blood taking device.Torsion cap and nut cap are two kinds of hemostix protective cap Form, but both forms are unrelated with the innovative point of the utility model, and this is skilled artisans appreciate that and cognition Situation.

2. 4 tail portion of push away hair device extends back, and there are four Spring pins 5 for setting in above embodiments 1（See Fig. 5 and Fig. 6）.But the utility model is not limited to this, and substantially the elastic clip of the utility model should be by least two Spring pins, 5 structure At.So can be two, three, four, five, six etc. from 5 quantity of Spring pins.This is art technology Personnel it will be appreciated that and cognition the case where.

3. the root of Spring pins 5 is conjoined structure two-by-two, and two Spring pins 5 share in above embodiments 1 One grab 6（See Fig. 5 and Fig. 6）.But the utility model is not limited to this, and the utility model Spring pins 5 can root two-by-two Disjunctor, can also grab 6 with mutually indepedent between a Spring pins 5 and another Spring pins 5, positioned at 2 the same side of needle core It can share, it can also be discrete.This does not influence the implementation of the utility model.This be skilled addressee readily understands that variation Situation.

4. being compared in above embodiments 1 from Figure 13 and Figure 16, or from the point of view of Figure 18 and Figure 20 comparison, the elasticity Pin 5 is straight-arm shape elastic cantilever structure.But the utility model is not limited to this, and the Spring pins 5 are also possible to crank arm type Elastic cantilever structure or folding arm shape elastic cantilever structure.This is that those skilled in the art can manage on that basis of example 1 The case where solution and cognition.

5. spring 3 is an independent hardware in above embodiments 1, spring 3 can also be designed as plastics bullet Spring, and made integrally with needle core 2.Skilled addressee readily understands that such situation of change.

The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention. All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it It is interior.

Claims (9)

1. a kind of new disposable hemostix, including shell（1）, needle core（2）, spring（3）And push away hair device（4）；

Before transmission under assembled state, needle core（2）Shell is located in by clip（1）It is interior, spring（3）Press against needle core（2）On, bullet Spring（3）Resilient force in needle core（2）Direction of ejection on, push away hair device（4）Head is from shell（1）Front end is stretched out, push away hair device （4）Body is slidably connected at shell（1）In；

It is characterized in that：The push away hair device（4）Tail portion, which extends back, is provided at least two Spring pins（5）, Spring pins（5） For elastic cantilever structure, the end of cantilever is effect end（17）；The Spring pins（5）It is equipped with and is used to lock needle core（2）'s Grab（6）；The Spring pins（5）It is separated by along length direction equipped with the first bending point（7）With the second bending point（9）, the One bending point（7）With the second bending point（9）Spring pins when being bending（5）The upper fatigue point that stress occurs and concentrates；With effect End（17）On the basis of, second bending point（9）To effect end（17）Distance be greater than the first bending point（7）To effect end（17） Distance；The grab（6）In Spring pins（5）It is located at the first bending point on length direction（7）Near；

The corresponding Spring pins（5）Effect end（17）In shell（1）It is interior to be equipped with inclined-plane（10）, the inclined-plane（10）It is equipped with resistance Block face（16）；The inclined-plane（10）Inclined direction meeting Spring pins head-on（5）Act on end（17）When, effect end can be forced （17）To the first bending point（7）One section of Spring pins（5）To the center curvature of the hemostix cross section；

The corresponding grab（6）In needle core（2）It is equipped with snap-latch surface（8）, the snap-latch surface（8）With grab（6）Cooperation is used to lock Needle core（2）；

Before transmission under assembled state, all elastic pin（5）An elastic clip, the needle core is collectively formed（2）Determined by clip Position is in elastic clip, wherein Spring pins（5）On grab（6）With needle core（2）On snap-latch surface（8）Cooperation, makes needle core（2） It is in the lock state；The Spring pins（5）It is arranged in inclined-plane（10）Front, wherein Spring pins（5）Effect end（17）It meets Face is arranged on inclined-plane（10）Front；

In a state of use, work as push away hair device（4）When head is depressed, push away hair device（4）Opposite shell（1）It moves backward, shell （1）Interior inclined-plane（10）Correspondence meets respective Spring pins head-on（5）Effect end（17）And force all elastic pin（5）Act on end （17）To the first bending point（7）One section of center curvature to the hemostix cross section, while Spring pins（5）Effect end （17）Along inclined-plane（10）Slide onto blocking surface（16）After be obstructed, blocking surface at this time（16）To Spring pins（5）Press effect is generated, Finally force all elastic pin（5）In the first bending point（7）With the second bending point（9）Place's bending or bending, make Spring pins （5）The first bending point（7）It laterally outwardly arches upward deformation, when all elastic pin（5）It arches upward to grab（6）With snap-latch surface（8） Needle core after unhook critical point（2）In spring（3）Effect, which issues, is shot through thorn.

2. hemostix according to claim 1, it is characterised in that：It is described to be used to lock needle core（2）Grab（6）It is located at bullet Property pin（5）Medial surface on.

3. hemostix according to claim 1, it is characterised in that：The Spring pins（5）For straight-arm shape elastic cantilever knot Structure.

4. hemostix according to claim 1, it is characterised in that：The Spring pins（5）For crank arm type elastic cantilever knot Structure.

5. hemostix according to claim 1, it is characterised in that：The Spring pins（5）For folding arm shape elastic cantilever knot Structure.

6. hemostix according to claim 1, it is characterised in that：The push away hair device（4）Side is equipped with hook（12）And gear Shoulder（13）, the corresponding hook（12）And shoulder block（13）In shell（1）Inner wall is equipped with inner face（14）, assembled state before transmission Under, push away hair device（4）On hook（12）With inner face（14）The first limit is cooperatively formed, to prevent push away hair device（4）Opposite shell （1）It moves forward；After transmitting under state, push away hair device（4）On shoulder block（13）With inner face（14）The second limit is cooperatively formed, To prevent push away hair device（4）Opposite shell（1）It retracts, makes push away hair device（4）Head opposite shell（1）Head is in concordant or retraction shape State.

7. hemostix according to claim 1, it is characterised in that：The needle core（2）Front, which is equipped with, turns round cap（11）, with this structure At torsion shape for hat head push type disposable blood taking device.

8. hemostix according to claim 1, it is characterised in that：The needle core（2）Front is equipped with nut cap, is constituted lid with this Shape for hat head push type disposable blood taking device.

9. hemostix according to claim 1, it is characterised in that：The shell（1）Head, which is equipped with, can change puncture deeply The adjusting head of degree（15）Structure.