Hemostix dynamic salient point benumbs device
Technical field
The present invention relates to Medical blood collecting device field, more particularly to hemostix and the dynamic that contact human skin position uses are convex
Point paralysis device.This dynamic salient point paralysis device, which can effectively be alleviated in blood collection procedure when needle body is pierced into skin, gives human body band
The pain come.
Background technology
Hemostix is a kind of Medical blood sampling equipment, and its structure type is varied.For many years, this kind of blood-taking device is located always
Among updating and developing, wherein, how to mitigate pain when needle body is pierced into human body skin, and art technology
The problem of personnel extremely pay close attention to.
Chinese patent CN201537093U disclose one it is entitled《Point triggered safety self-destruction blood sampling dress before disposable
Put》, Patent No. ZL200920241449.1 utility model patent.From the row of patent specification [0037] section the 4th with
And it should be apparent that the external circumferential of ejection hole 43 of the deploying device 4 in the patent in the accompanying drawing 1 and accompanying drawing 2 of the patent
6 massage blocks 44 are set.
Accompanying drawing 1 of the present invention is the salient point schematic diagram of device that traditional hemostix has Typical Representative meaning, wherein, outer tube 1
The housing 5 of corresponding above-mentioned patent, the deploying device 4 of the corresponding above-mentioned patent of inner sleeve 2, the ejection of the corresponding above-mentioned patent of needle outlet 3
Hole 43, the massage block 44 of the corresponding above-mentioned patent of static salient point 4.Traditional salient point device is all that static state setting goes out pin in inner sleeve 2
The external circumferential of hole 3, i.e. inner sleeve 2 are provided with several static salient points 4 with contact human skin face(Dot bulge), during blood sampling according to
The static salient point 4 and skin contact of inner sleeve pipe 2, and secondary stimulus is produced to skin, so as to play the work that transfer punctures pain
With.Conventional static salient point 4 plays positive role although can be distracted attention in, to mitigating puncture pain, but in reality
Its lenitive effect and not as people imagine so good in the application of border, and more consider be in order to product publicity and
Promote.
Therefore, how to improve paralysis effect, the present invention is improved using the means of dynamic salient point to above-mentioned prior art,
With overcome the deficiencies in the prior art.
The content of the invention
In view of the shortcomings that above prior art, the present invention provides a kind of hemostix dynamic salient point paralysis device, the purpose is to
It is ineffective to solve the problems, such as that the existing alleviation of above-mentioned traditional salient point device punctures pain.
To reach above-mentioned purpose, the technical solution adopted by the present invention is:A kind of hemostix dynamic salient point benumbs device, including
Outer tube and inner sleeve, one end of outer tube are provided with stomidium, and inner sleeve is located in outer tube and relative outer tube is slidably connected, interior
Bushing head stretches out from the stomidium of outer tube, and inner sleeve head end is provided with needle outlet, and its innovation is:
The inner sleeve tube head offers some grooves vertically, and each bar groove is in circumferentially-spaced point of interior bushing head
Cloth, with this by inner sleeve Head segmentation into several elastic arms being distributed around needle outlet;At least one elastic arm with human body
The end face of skin contact is provided with dynamic salient point, and the dynamic salient point is bulge-structure;
The outer tube is provided with the first acting surface, and elastic arm is provided with the second acting surface;First acting surface or/and
Second acting surface is provided with concaveconvex structure, or the first acting surface or/and the second acting surface are provided with curved surface;
In a state of use, during inner sleeve is retracted or stretched out vertically with respect to outer tube, the first acting surface and the
Two acting surfaces are engaged, and now the concaveconvex structure or curved surface force elastic arm to produce swing of radially stepping down, so as to drive
Dynamic salient point moves radially with respect to needle outlet center.
The present invention design principle be:The present invention by inner sleeve Head segmentation into several resilient arm structures, and each
Bulge-structure is set on the end face of individual elastic arm and contact human skin.During blood sampling, outer tube is held and by inner sleeve tube head pair
Quasi- human blood collection position, the dot bulge on inner sleeve top are moved first with skin contact as inner sleeve outer tube relatively is axial
Dynamic, concaveconvex structure or curved surface between the first acting surface and the second acting surface force elastic arm to produce swing of radially stepping down, from
And drive dot bulge to be moved radially with respect to needle outlet center, form dynamic salient point.So the skin around blood sampling point is produced
Lively state paralysis and stimulation, to shift the notice of people, mitigate the pain that needle body is pierced into human body skin.
The features of the present invention and effect are:First, it is simple in construction, it is skillfully constructed;Second;Do not increase other structures part,
As long as original mould, which is improved, to be obtained, almost without increase cost;3rd, compared with traditional static salient point, move
State salient point distract attention and mitigate pain effect significantly increase.
Brief description of the drawings
Fig. 1 is the salient point schematic diagram of device that traditional hemostix has Typical Representative meaning;
Fig. 2 is the inner sleeve stereogram of the embodiment of the present invention 1;
Fig. 3 is the stereogram of state before the triggering of the hemostix of the embodiment of the present invention 1;
Fig. 4 is the sectional view of state before the triggering of the hemostix of the embodiment of the present invention 1;
Fig. 5 is the stereogram of state in the triggering of the hemostix of the embodiment of the present invention 1;
Fig. 6 is the sectional view of state in the triggering of the hemostix of the embodiment of the present invention 1;
Fig. 7 is the stereogram of state after the triggering of the hemostix of the embodiment of the present invention 1;
Fig. 8 is the sectional view of state after the triggering of the hemostix of the embodiment of the present invention 1;
Fig. 9 is the stereogram of state before the triggering of the hemostix of the embodiment of the present invention 2;
Figure 10 is the sectional view of state before the triggering of the hemostix of the embodiment of the present invention 2;
Figure 11 is the stereogram of state before the triggering of the hemostix of the embodiment of the present invention 3;
Figure 12 is the sectional view of state before the triggering of the hemostix of the embodiment of the present invention 3;
Figure 13 is the stereogram of state before the triggering of the hemostix of the embodiment of the present invention 4;
Figure 14 is the three-dimensional cutaway view of state before the triggering of the hemostix of the embodiment of the present invention 4;
Figure 15 is the sectional view of state before the triggering of the hemostix of the embodiment of the present invention 4;
Figure 16 is the stereogram of state before the triggering of the hemostix of the embodiment of the present invention 5;
Figure 17 is the sectional view of state before the triggering of the hemostix of the embodiment of the present invention 5;
Label declaration in the figures above is as follows:
1. outer tube;2. inner sleeve;3. needle outlet;4. static salient point;5. dynamic salient point;6. groove;7. elastic arm;8. wedge
Shape projection;9. stomidium;10. undaform projection;Clamp in 11.;Inclined-plane built in 12.;13. button.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described:
Embodiment 1:A kind of hemostix dynamic salient point benumbs device(The structure is applied to head pressing and pushes away hairdo hemostix)
As shown in Fig. 2-Fig. 8, the device includes outer tube 1(Alternatively referred to as shell or housing)With inner sleeve 2(Alternatively referred to as
Triggering pipe pushes away hair pipe)(See Fig. 4), one end of outer tube 1 is provided with stomidium 9, and inner sleeve 2 is located in outer tube 1 and relative overcoat
Pipe 1 is slidably connected, and the head of inner sleeve 2 is stretched out from the stomidium 9 of outer tube 1, and the head end of inner sleeve 2 is provided with needle outlet 3.
The head of inner sleeve 2 offers 12 grooves 6 vertically, and each bar groove 6 is circumferentially-spaced on the head of inner sleeve 2
It is uniformly distributed(Can also uneven distribution, but be uniformly distributed as preferred plan), with this by the Head segmentation of inner sleeve 2 into around going out
12 elastic arms 7 that pin hole 3 is distributed.Each elastic arm 7 is provided with dynamic salient point 5 on the end face with contact human skin
(Dynamic salient point 5 can not also be set on some elastic arm 7, dynamic salient point 5 can also be arranged at intervals on elastic arm 7), this is dynamic
State salient point 5 is bulge-structure.
The outer tube 1 is provided with the first acting surface, and elastic arm 7 is provided with the second acting surface.In the present embodiment, it is described
The inner edge of stomidium 9 of outer tube 1 is as the first acting surface, and the circumferential outer rim on the corresponding head of inner sleeve 2 of each elastic arm 7 is as second
Acting surface.Second acting surface is provided with concaveconvex structure, and the concaveconvex structure is wedge shaped projection 8, and the wedge shaped projection 8 is located at elastic arm
On 7 lateral surfaces(See Fig. 4)., can be by each wedge shaped projection 8 with respect to the central shaft of inner sleeve 2 in order to further improve action effect
Line is distributed in the shape of a spiral(See Fig. 2 and Fig. 3).
Fig. 3 and Fig. 4 is the state before the triggering of the present embodiment hemostix, and Fig. 5 and Fig. 6 are the state in hemostix triggering, Fig. 7
It is the state after hemostix triggering with Fig. 8.The present embodiment hemostix dynamic salient point paralysis device is only applicable to head pressing and pushes away hair
Formula hemostix.Such hemostix generally all includes outer tube 1 and inner sleeve 2, and inner sleeve 2 slides with respect to outer tube 1 to be connected
Connect, the head of inner sleeve 2 is stretched out from the stomidium 9 of outer tube 1, hand-held outer tube 1 and the head of inner sleeve 2 is directed at into human body during use
Blood sampling site, then press, now the head of inner sleeve 2 shift-in outer tube 1(Trigger the retraction of pipe opposite shell), while trigger ejection
Structure, under the action of the spring needle body projected from needle outlet 3, realize blood sampling purpose.
During blood sampling, the dynamic salient point 5 on the head of inner sleeve 2 is first with skin contact, and inner sleeve 2 is relatively outer under pressing effect
Sleeve pipe 1 is retracted vertically, and the first acting surface is engaged with the second acting surface, the wedge shaped projection 8 on elastic arm 7 and outer tube 1
The inner edge of stomidium 9 contacts successively, forces elastic arm 7 to produce swing of radially stepping down in order, so as to drive dynamic salient point 5 to go out pin relatively
The center of hole 3 moves radially.After whole wedge-shaped protrusions 8 pass sequentially through the inner edge of 1 stomidium of outer tube 9, elastic arm 7 can be returned sequentially again
Return original position, dynamic salient point 5, which can also produce, in this process is radially moved back and forth, and stimulation is produced to skin and paralysis acts on, with
Distract attention, mitigate and puncture pain.Dynamic salient point of the present invention mitigates the significant effect increasing of pain compared with traditional static salient point
By force.
Embodiment 2:A kind of hemostix dynamic salient point benumbs device(The structure is applied to head pressing and pushes away hairdo hemostix)
As shown in Figure 9 and Figure 10, compared with Example 1, difference is the present embodiment:Each wedge shaped projection 8 is in inner sleeve 2
Central axial direction is located in same transverse location.Elastic arm 7 produces radially to step down to swing almost to be occurred simultaneously, and no order is asked
Topic.Other structures are same as Example 1, and description is not repeated herein.
Embodiment 3:A kind of hemostix dynamic salient point benumbs device(The structure is applied to head pressing and pushes away hairdo hemostix)
As is illustrated by figs. 11 and 12, compared with Example 1, difference is the present embodiment:Each 7 corresponding inner sleeve of elastic arm
The circumferential outer rim on 2 heads is as the second acting surface.Second acting surface is provided with curved surface, and the curved surface is undaform projection 10, should
Undaform projection 10 is located on the lateral surface of elastic arm 7.
During blood sampling, the first acting surface is engaged with the second acting surface, undaform projection 10 and outer tube on elastic arm 7
The inner edge of 1 stomidium 9 contacts, and forces elastic arm 7 to produce reciprocal radially step down and swings, so as to drive dynamic salient point 5 with respect in needle outlet 3
The heart is made back and forth to move radially.Other structures are same as Example 1, and description is not repeated herein.
Embodiment 4:A kind of hemostix dynamic salient point benumbs device(The structure is applied to head pressing and pushes away hairdo hemostix)
As shown in Figure 13, Figure 14 and Figure 15, compared with Example 1, difference is the present embodiment:The end of the outer tube 1
An interior clamp 11 is provided with hole 9, the head of inner sleeve 2 is stretched out from the stomidium 9 of outer tube 1 while is sleeved on interior clamp 11,
Now the first acting surface is located in the outer rim of interior clamp 11 of outer tube 1, and the second acting surface is located at each 7 corresponding inner sleeve of elastic arm
On the inner edge on 2 heads.The concaveconvex structure is built-in inclined-plane 12, and built-in inclined-plane 12 is located on the medial surface of elastic arm 7.
During blood sampling, the first acting surface is engaged with the second acting surface, i.e., inclined-plane built in the anterior outer rim top pressure of interior clamp 11
12, which force elastic arm 7 to produce the radial direction resigning extended out, swings, so as to drive dynamic salient point 5 to make what is extended out with respect to the center of needle outlet 3
Move radially.Other structures are same as Example 1, and description is not repeated herein.
Embodiment 5:A kind of hemostix dynamic salient point benumbs device(The structure is applied to sidepiece push type hemostix)
As shown in Figure 16 and Figure 17, compared with Example 1, difference is the present embodiment:Triggering mode is different, embodiment 1
Structure is applied to head pressing and pushes away hairdo hemostix, and the present embodiment is applied to sidepiece push type hemostix.That is the present embodiment
Triggering is by pressing the button 13 set by the sidepiece of outer tube 2, making inner sleeve 2 axially extending with respect to outer tube 1, stretching out
Cheng Zhong, the wedge shaped projection 8 on elastic arm 7 contact with the inner edge of 1 stomidium of outer tube 9, force elastic arm 7 to produce radially to step down and swing,
So as to drive dynamic salient point 5 to be moved radially with respect to the center of needle outlet 3.Other structures are same as Example 1, are not repeated herein
Description.
It is explained as follows below for the performance of the present invention:
1. technical solution of the present invention applicable object problem.Present invention may apply to head pressing to push away hairdo hemostix,
Suitable for sidepiece push type hemostix, or even suitable for afterbody push type hemostix.Which kind of structure type blood sampling device is not, only
Will the hemostix include an outer tube 1 and an inner sleeve 2, inner sleeve 2 is slidably connected with respect to outer tube 1, and the head of inner sleeve 2 is from outer
Stretched out in the stomidium 9 of sleeve pipe 1, so that it may meet the applicability requirement of the present invention.The structure type of so-called hemostix mainly has head
Three kinds of push type, sidepiece push type and afterbody push type.The invention is not limited in one kind therein.
2. in the present invention, outer tube 1 and inner sleeve 2 are original two parts on hemostix.Wherein, outer tube 1
Cross section can be square or circular, or other shapes.Outer tube can also be named other names such as shell or housing
Claim.Inner sleeve cross section can be square or circular, or other shapes.Inner sleeve can also be named push away hair device, triggering
Other titles such as pipe.However, what call but its function and effect are all identical.
3. the quantity of groove 6 that in the present invention, the head of inner sleeve 2 opens up vertically is unrestricted, the amount doesn't matter, specifically may be used
To be grasped according to being actually needed, it is also necessary to consider technologic exploitativeness, these all those skilled in the art will know that.
4. in the present invention, each bar groove 6 can be circumferentially that interval is uniformly distributed on the head of inner sleeve 2, can also be uneven
Even distribution, but be uniformly distributed as preferred plan.This is that those skilled in the art are readily apparent that.
5. in the present invention, can be set on dynamic salient point 5 on each elastic arm 7, can also be on elastic arm 7 between
Every setting.These changes are that those skilled in the art are readily apparent that.
6. in the present invention, each wedge shaped projection 8 of embodiment 1 is distributed in the shape of a spiral with respect to the central axis of inner sleeve 2, real
The each wedge shaped projection 8 for applying example 2 is located in same transverse location in the central axial direction of inner sleeve 2.But art technology is in reality
Under the inspiration for applying example 1 and embodiment 2, be readily apparent that except both versions and in addition to other changes, for example hand over vertically
Mistake distribution etc..
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification that Spirit Essence is made, it should all be included within the scope of the present invention.