CN206365893U - Drop-head type head push type disposable blood taking device - Google Patents

Abstract

A kind of drop-head type head push type disposable blood taking device, including shell, nook closing member, spring and push away hair device；It is characterized in that：The lateral surface of the elastic claw is provided with barb, to should barb chuck is provided with hair device is pushed away, chuck is located at by inclined-plane, is provided between chuck and inclined-plane and allows bit space for what elastic claw end was walked.When pressing hemostix head, hair device opposite shell is pushed away to be moved rearwards by, elastic claw insertion allows bit space along inclined-plane climbing, inclined-plane forces elastic claw laterally to open simultaneously, nook closing member is launched under the action of the spring after elastic claw is laterally flared to unhook critical point, then the barb on elastic claw catches on chuck, makes to push away hair device external part opposite shell head in indentation state.This programme solve hemostix using occiput not retractable the problem of, user is easily recognized the mode of appearance using front and rear hemostix head.

Description

Drop-head type head push type disposable blood taking device

Technical field

The utility model is related to medical blood taking apparatus field, more particularly to a kind of head push type one for carrying ejection mechanism The safe hemostix that secondary property is used（Or blood taking needle）.The hemostix has obvious retraction using occiput, to distinguish before use Head appearance form.

Background technology

In medical blood taking field, disposable blood taking device with its small volume, using safety, it is easy to operate for characteristic deeply cured Shield personnel and patient welcome, and are largely used in each medical institutions and diabetic at present.This hemostix carries ejection Mechanism, compact conformation, overall time is used, safe and convenient, therefore with 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 block type head push type disposable blood taking device. Its structure comprising shell, end cap, nook closing member, spring, push away hair device and block.In the assembled condition, end cap is provided with a pair of elastic claws, The elastic claw using grab and chucking power by nook closing member both sides pick up the ears block；Spring top is pressed between end cap and nook closing member；Work as blood sampling When device head is depressed, pushes away hair device and move rearwardly through inclined-plane and meet two elastic claws head-on and force elastic claw to open, so as to draw Hairpin core, which breaks off relations and shooting is produced under the promotion of spring, to be punctured.So-called block type refers to that hemostix head uses the structure of block Form, i.e. block be sleeved in hemostix head, block stretch out a detection bar not only can be for detection nook closing member lock-out state but also can For protection needle point.

Chinese patent CN205107692U bulletin authorize one it is entitled《Modified Head push type is disposably taken a blood sample Device》Utility model patent.The accompanying drawing 1 of the patent to accompanying 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 operation principle are similar with above-mentioned Chinese patent CN2619583Y, difference It is：Hemostix head will first be twisted torsion cap, be made the neck between nook closing member and guard bar using the structure type for turning round cap when using Fracture, then pulls out guard bar and turns round cap.

The core texture of above-mentioned two classes head push type disposable blood taking device is ejection mechanism, i.e., a pair on end cap Pick up the ears for a pair on elastic claw, nook closing member, spring and push away the formed ejection mechanism that cooperates between inclined-plane on hair device.This Ejection mechanism is planted, structure is ripe, distinct characteristics, but from the perspective of user's Consumer's Experience, head is pressed during due to blood sampling Complete resilience after pressure, therefore still suffer from some shortcomings：First, use front and rear head form from None- identified in appearance；Second, Resilience completely causes head to have reaction force acts in the finger for just having adopted blood after the pressing of head, does not pause significantly, makes Bad with feel, Consumer's Experience is not good.

The design of conventional such product is more concern blood sampling effect, and continuous progress and people now with technology Living standard improve, the theory of such product design is：On the premise of blood sampling effect is ensured, user's body is more paid close attention to Test, such as, first, use feel；Second, visual experience；3rd user psychology etc..Therefore, how more preferably and effectively to solve Above mentioned problem is the problem of the utility model research.

The content of the invention

In view of the deficiency that above prior art is present, the utility model provides a kind of drop-head type head push type and disposably adopted Blood device, its purpose is to solve resilience completely after above-mentioned hemostix head pressing, it is impossible to which the brought None- identified of retraction is used Fore head mode of appearance and without marked halt using feel it is poor the problem of.

To reach above-mentioned purpose, the technical solution adopted in the utility model is：A kind of drop-head type head push type is disposable Hemostix, including shell, nook closing member, spring and push away hair device；

Positioning is provided with least two elastic claws in the shell, and all elastic pawl is collectively forming an elastic clip；

The nook closing member is clamped in elastic clip, and spring top is pressed in nook closing member afterbody and acted on the direction of ejection of nook closing member, Nook closing member clip is lived to be formed before transmitting and locked by elastic clip using the grab and chucking power of each elastic claw end；

The hair device head that pushes away is stretched out from case nose, pushes away hair device body and is slidably connected in shell, pushes away hair device correspondence each Elastic claw is head-on provided with and forces elastic claw end to the inclined-plane laterally opened；

Its innovation is：The lateral surface of the elastic claw be provided with barb, to should barb push away hair device on be provided with chuck, Chuck is located at by inclined-plane, and the bit space that allows for supplying elastic claw end to walk is provided between chuck and inclined-plane；

Before transmission under lock-out state, when pushing away hair device external part of pressing hemostix head pushes away hair device opposite shell backward Mobile, elastic claw insertion allows bit space along inclined-plane climbing, while inclined-plane forces elastic claw laterally to open, when elastic claw laterally opens Nook closing member is launched under the action of the spring after to unhook critical point, and then the barb on elastic claw catches on chuck, makes to push away hair device external part Opposite shell head is in indentation state.

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

1. in such scheme, the basic structure and function and work of " shell ", " nook closing member ", " spring " and " pushing away hair device " With being prior art.It may refer to the technology contents cited in the utility model background technology.

2. in such scheme, " inclined-plane " includes plane, cambered surface or the conical surface, however, how with respect to hemostix axis It is obliquely installed, so as 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 up of on tilted direction multistage straight line, concave surface or convex surface, but essence or inclined-plane is upwardly formed 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 up of at least one section concave arc or/and convex arc, but essence is also It is inclined-plane）Four types.It is any applicable in the utility model, it can specifically be determined according to actual conditions.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.

3. in such scheme, " preceding " in " front end " refers to needle point direction in hemostix.In " backward " " rear " refer to the opposite direction of " preceding ".

4. the utility model drop-head type head push type disposable blood taking device includes torsion two kinds of structures of shape for hat and block type.I.e. The utility model disposable blood taking device normal conditions have a protective cap, and the structure type of protective cap can using turn round shape for hat or Block type.This, which has no effect on, realizes the utility model purpose.

Design principle of the present utility model and design are：In order that head push type disposable blood taking device sends out device using pusher External part opposite shell head has obvious retraction effect, and the lateral surface of the utility model elastic claw is provided with barb, simultaneously To should barb be provided with chuck on hair device is pushed away, be provided between chuck and inclined-plane and allow bit space for what elastic claw end was walked.Press When pressing hemostix head, push away hair device opposite shell and be moved rearwards by, elastic claw insertion allows bit space along inclined-plane climbing, while inclined-plane is compeled Elastic claw is set laterally to open, nook closing member is launched under the action of the spring after elastic claw is laterally flared to unhook critical point, it is then elastic Barb on pawl catches on chuck, makes to push away hair device external part opposite shell head in indentation state.

Due to the utilization of above-mentioned technical proposal, the utility model has advantages below and effect compared with prior art：

1. use the complete resilience of occiput because the utility model solves hemostix, it is impossible to the problem of being retracted, therefore can To allow user easily to recognize using mode of appearance preceding and using rear hemostix head, hence it is evident that improve hemostix product and use The identification of state.

2. due to the utility model hemostix using pusher hair device external part will not resilience completely, with being significantly retracted, Therefore user can significantly experience pause in use, and operator can also significantly experience pause, using good hand touch, Consumer's Experience is good.Meet current hemostix product and focus on setting using Consumer's Experiences such as feel, visual experience and user psychologies Meter theory.

3. the utility model is simple in construction, it is skillfully constructed, does not increase other structures part, as long as changes to original mould Enter and can be achieved, almost do not increase cost, therefore there are prominent substantive distinguishing features and significantly enter compared with prior art Step.

Brief description of the drawings

Fig. 1 is the utility model embodiment drop-head type head push type disposable blood taking device three-dimensional exploded view；

Fig. 2 is the utility model embodiment drop-head type head push type disposable blood taking device stereogram；

Fig. 3 is the utility model embodiment tail-hood stereogram；

Fig. 4 is the partial enlarged drawing in Fig. 3；

Fig. 5 is that the utility model embodiment pushes away hair device stereogram；

Fig. 6 is the partial enlarged drawing in Fig. 5；

Fig. 7 is the utility model embodiment outward appearance front view；

Fig. 8 is the initial confined state sectional view of the utility model embodiment；

Fig. 9 is that the utility model embodiment removal turns round hat shape state sectional view；

Figure 10 is that the pressing of the utility model embodiment pushes away hair device head state sectional view；

Figure 11 is the utility model embodiment blood sampling occiput indentation state sectional view.

Label declaration in the figures above is as follows：

1. shell；2. tail-hood；3. nook closing member；4. spring；5. push away hair device；6. turn round cap；7. elastic claw；8. inclined-plane；9. grab； 10. barb；11. allow bit space；12. chuck；13. ennation.

Embodiment

Below in conjunction with the accompanying drawings and embodiment is further described to the utility model：

Embodiment：A kind of drop-head type head push type disposable blood taking device

As Figure 1-Figure 11, the disposable blood taking device by shell 1, tail-hood 2, nook closing member 3, spring 4, push away hair device 5 and turn round cap 6 Composition（See Fig. 1 and Fig. 2）.

In the assembled condition（See Fig. 8）, tail-hood 2 covered in the afterbody port of shell 1, and tail-hood 2 stretches out two faces in shell 1 The elastic claw 7 that opposite is arranged symmetrically, the two elastic claws 7 are collectively forming an elastic clip.The nook closing member 3 is clamped in elastic clip In, the top pressure of spring 4 is in the afterbody of nook closing member 3 and acts on the direction of ejection of nook closing member 3, and elastic clip utilizes the card of each end of elastic claw 7 Hook 9 and chucking power, which live the clip of nook closing member 3 to be formed before transmitting, to be locked.The hair head of device 5 that pushes away is stretched out from the front end of shell 1, pushes away hair device 5 Body is slidably connected in shell 1, is pushed away the hair correspondence of device 5 each elastic claw 7 and is headed on provided with forcing the end of elastic claw 7 to laterally opening Inclined-plane 8.Torsion cap 6, which is sleeved on, pushes away hair device 5 head, and the protective case turned round on cap 6 is enclosed on the guard bar on the head of nook closing member 3.

The present embodiment above content is prior art, and innovation of the present utility model is：The lateral surface of the elastic claw 7 It is provided with barb 10（See Fig. 3 and Fig. 4）, to should barb 10 push away hair device 5 on be provided with chuck 12（See Fig. 5 and Fig. 6）, chuck 12 It is provided with by inclined-plane 8, between chuck 12 and inclined-plane 8 and allows bit space 11 for what elastic claw 7 end was walked（See Fig. 6）.It is described to push away Send out device 5 and be provided with ennation 13, the chuck 12 is located on ennation 13（See Fig. 6）.

Before transmission under lock-out state, when pushing away hair 5 external part of device of pressing hemostix head, push away the hair opposite shell 1 of device 5 to After move, elastic claw 7 insertion allows bit space 11 to be climbed along inclined-plane 8, while inclined-plane 8 forces elastic claw 7 laterally to open, work as elastic claw 7 are laterally flared to nook closing member 3 after unhook critical point launches under the effect of spring 4, and then the barb 10 on elastic claw 7 catches on chuck 12, make to push away the head of 5 external part opposite shell of hair device 1 in indentation state.

Action process is as follows when the present embodiment is used：

（1）Initial confined state

As shown in figure 8, whole hemostix by shell 1, tail-hood 2, nook closing member 3, spring 4, push away hair device 5 and turn round cap 6 and constitute, its In, spring 4 is in preloading condition, and nook closing member 3 is in lock-out state before transmitting, and hemostix, which is provided with, turns round cap 6（Protective cap）.

（2）Removal turns round hat shape state

As shown in figure 9, a hand grips hemostix shell 1, another hand is reversed and dialled except torsion cap 6.

（3）Press emission state

As shown in Figure 10 and Figure 11, hemostix head is pushed away into the external part alignment blood sampling site pressing of hair device 5, pushes away hair device 5 opposite shells 1 are moved rearwards by, and the insertion of elastic claw 7 allows bit space 11 to be climbed along inclined-plane 8, while inclined-plane 8 forces elastic claw 7 lateral Open（See Figure 10）, nook closing member 3 is launched under the effect of spring 4 after elastic claw 7 is laterally flared to unhook critical point, then elastic claw Barb 10 on 7 catches on chuck 12, makes to push away the head of 5 external part opposite shell of hair device 1 in indentation state（See Figure 11）.

It is explained as follows below for other performances of the present utility model and change：

1. what although above example provided is to turn round shape for hat head push type disposable blood taking device, the utility model not office It is limited to this, is also applied for block type head push type disposable blood taking device.Torsion cap and block are two kinds of shapes of hemostix protective cap Formula, but both forms are unrelated with innovative point of the present utility model, and this is skilled artisans appreciate that and cognitive feelings Condition.

2. an elastic clip in the embodiment above, being collectively forming by two elastic claws 7 is prolonged from the inner face of tail-hood 2 The extended structure of stretching.But the utility model is not limited to this, elastic clip can directly be extended by shell 1 and be formed.Such as will be outer Shell 1 be designed to above and below two halves be put together, per an elastic claw is extended in casing half, when latter two bullet of shell two halves split The elastic clip that property pawl is collectively forming.At this point it is possible to tail-hood 2 be saved, in the shell for being merged into two half moulves simultaneously.So, Extension on tail-hood 2 and tail-hood 2 necessary condition is not written as provided with elastic claw structure in claim 1, this is this area Technical staff is it will be appreciated that and cognitive situation.

3. in the embodiment above, elastic clip is arranged symmetrically and is collectively forming face-to-face by two elastic claws.But this practicality The new quantitative aspects in elastic claw is not limited to two, can include more than two situations, such as three, four, five Individual etc., these elastic claws can be arranged around nook closing member can similarly reach the purpose of this utility model, realize identical Technique effect.This be skilled addressee readily understands that situation of change.

Above-described embodiment is only to illustrate technical concepts and features of the present utility model, and its object is to allow be familiar with technique Personage can understand content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this. All equivalent change or modifications made according to the utility model Spirit Essence, should all cover protection domain of the present utility model it It is interior.

Claims (2)

1. a kind of drop-head type head push type disposable blood taking device, including shell（1）, nook closing member（3）, spring（4）And push away hair device （5）；

The shell（1）Interior positioning is provided with least two elastic claws（7）, all elastic pawl（7）It is collectively forming an elastic clip；

The nook closing member（3）It is clamped in elastic clip, spring（4）Top pressure is in nook closing member（3）Afterbody simultaneously acts on nook closing member（3）Ejection On direction, elastic clip utilizes each elastic claw（7）The grab of end（9）With chucking power by nook closing member（3）Clip, which is lived to be formed before transmitting, to be locked It is fixed；

It is described to push away hair device（5）Head is from shell（1）Front end is stretched out, and pushes away hair device（5）Body is slidably connected at shell（1）In, push away hair Device（5）Each elastic claw of correspondence（7）Head-on it is provided with and forces elastic claw（7）End is to the inclined-plane laterally opened（8）；

It is characterized in that：The elastic claw（7）Lateral surface be provided with barb（10）, to should barb（10）Pushing away hair device（5） It is provided with chuck（12）, chuck（12）Positioned at inclined-plane（8）Side, chuck（12）With inclined-plane（8）Between provided with supplying elastic claw（7）End That walks allows bit space（11）；

Before transmission under lock-out state, press hemostix head pushes away hair device（5）During external part, hair device is pushed away（5）Opposite shell（1） It is moved rearwards by, elastic claw（7）Insertion allows bit space（11）Along inclined-plane（8）Climb, while inclined-plane（8）Force elastic claw（7）Laterally Open, work as elastic claw（7）Laterally it is flared to nook closing member after unhook critical point（3）In spring（4）Effect is lower to launch, then elastic claw （7）On barb（10）Catch on chuck（12）, make to push away hair device（5）External part opposite shell（1）Head is in indentation state.

2. hemostix according to claim 1, it is characterised in that：It is described to push away hair device（5）It is provided with ennation（13）, it is described Chuck（12）It is located at ennation（13）On.