CN2409911Y - Disposable blood-taking needle device - Google Patents

Abstract

The utility model relates to a disposable blood sampling acupuncture device and a blood sampling operating method thereof. The utility model is composed of a button assembly with a pricking pin and a pin cap, a spring, and an outer shell with a guiding groove, which are assembled together. The positions and the connecting relation are that buttons, the pricking pin, and the pin cap constitute an entire assembly; the assembly and the spring are all arranged inside the outer shell with the guide groove through the spring; convex wings of two buttons, which are arranged at the rod parts for the buttons, are correspondingly supported two convex wings inside the guide groove of the outer shell, and two limit shoulders at the upper part of the buttons are matched and connected with two limit shoulders inside the outer shell. After the pricking pin of the blood sampling acupuncture device is disinfected, the pricking pin is injected and sealed inside the pin cap. Safety and sanitation can be ensured, and contagion and infection of diseases can be prevented. When used, the utility model has the advantages of accurate acupuncture, high speed, and small painful feelings. The utility model can not be falsely operated and can not be used repeatedly.

Description

Can't reusable blood sampling revulseur

This utility model be a kind of can't reusable blood sampling revulseur, belong to medical blood test apparatus.

Now, the mankind cause unnecessary germ contamination in the blood test process, invented many disposable blood taking needles or revulseur.There are more following main shortcomings in the existing disposable revulseur of public use: (1) quite a few disposable revulseur its pricker after using once still exposes, on structure, analyze with function of use, the revulseur of this type still can be reused, so-called disposable use is people's wish or requirement, and in fact be not really can only once to use, have and greatly may cause viral infection; (2) though some disposable blood sampling revulseur after once using, its pricker also can be return within the shell, can reuse equally.Particularly in the disposable revulseur of public use, its use later reset position and use before its state of appearance do not have significant change or difference, have and may cause maloperation more greatly and reuse.

The purpose of this utility model is exactly in order to overcome and to solve existing disposable blood sampling revulseur existence still reusable from the 26S Proteasome Structure and Function, and the locations of structures state of appearance before and after using does not have obvious difference, have and to cause maloperation more greatly and reuse, the shortcoming and the problem that greatly may cause disease propagation and viral infection etc. are arranged, and research design is a kind of can't to reuse it from structure fully, can thoroughly overcome and solve existing disposable blood taking needle from structure, on the function still reusable and use before and after locations of structures do not have obvious difference, easily cause maloperation and reuse, have very big may communicate illness and the shortcoming of viral infection etc. and problem can't reusable blood sampling revulseur.

This utility model is realized by following technical proposals: can't be reusable the structural representation of blood sampling revulseur before using as shown in Figure 1, the structural representation during it uses as shown in Figure 2, the structural representation after it uses is as shown in Figure 3.It is by the button 1 of a barbed pin 3, spring 2, the shell 4 of tape guide groove, pin medicated cap 5 formation that is linked and packed jointly, its mutual alignment and annexation are: button 1 constitutes a monolithic devices assembly with pricker 3 and pin medicated cap 5, the monolithic devices assembly that the button 1 of barbed pin 3 and pin medicated cap 5 constitute is installed in the shell 4 of tape guide groove together by spring 2, the bar portion of button 1 is provided with the protruding wing 12 of button of two protrusions, 13, the guide groove inwall is provided with the protruding wing 10 of two shell guide grooves of protrusion in the shell 4,11, when the button assembly device of barbed pin 3 and pin medicated cap 5 is gone in shell 4 guide grooves, the protruding wing 12 of button, 13 with the protruding wing 10 of shell guide groove, 11 accept relatively, be respectively arranged with the spacing shoulder 8 of button of protrusion about the top of button 1,9 and with the top of shell 4 about the spacing shoulder 6 of shell that is provided with, 7 is matched, and 1 distance range of going up motion of button is subjected to the spacing shoulder 6 of shell on shell 4 tops by the elastic force of spring 2,7 restriction.

The blood sampling running of this blood sampling revulseur is as follows: when using this blood sampling revulseur, earlier pin medicated cap 5 is pulled out, the shell 4 of reuse forefinger and middle finger clamping revulseur, after aiming at the mark, thumb gives the button a slight press 1, the button 1 of barbed pin 3 slides along the axial channel in the shell 4, acupuncture one end aims at the mark and thrusts in the skin, the protruding wing 12 of button, 13 with the protruding wing 10 of shell guide groove, 11 form resistive drag force, when a bigger power vertically adds when being pressed in button 1 top, can make the protruding wing 12 of button, 13 break away from the protruding wing 10 of shell guide groove that protrudes on the shell guide groove wall suddenly, 11, at this moment pricker 3 can be gone out shell end face 16 by predetermined momentum with one, thrusts rapidly in the skin; After an acupuncture is finished, owing to the elastic force effect of spring 2 makes button assembly immediately in the indentation shell end face 16, but the stroke that button 1 up resets is subjected to the obstruction of the protruding wing 10,11 of shell guide groove because of the protruding wing 12,13 of button own, its resistance can not reset button 1 greater than the elastic force of spring 2 fully, form depression room 14,15 at button 1 top and shell 4 tops, distinguish the situation that revulseur uses the front and back locations of structures significantly.

This utility model compared with prior art has following advantage and beneficial effect: (1) is because button assembly comprises button 1, pricker 3 and pin medicated cap 5, and be single injection-molded, pricker is in sealing state all the time, produce with storage process in avoided exposing the infection that airborne pollution factor contacts with human body, before using, pin medicated cap 5 is pulled out the back and carry out acupuncture, guarantee safe and sanitary at once; (2) in use, in case the protruding wing 12,13 of button and the protruding wing 10,11 of shell guide groove are overcoming the resistance that self causes and are making plastics produce strain and momentum that resistance is caused when being overcome is very big, speed is also very fast, can fully satisfy the needs of blood sampling acupuncture.As everyone knows, the speed of acupuncture is fast more in acupuncture course, and pain is just more little; (3) owing to guaranteed that the needle puncture tip distal process goes out the length of shell end face in the design of this blood sampling revulseur, just guaranteed to lunge the degree of depth of skin at every turn, thereby guaranteed to obtain blood sample accurately, avoid the anthropic factor skin puncture degree of depth inaccurate and make the person under inspection cause unnecessary pain and if the shortcoming and the problem of the inaccurate grade of blood sample; (4), can avoid maloperation effectively and reuse because this blood sampling revulseur can be distinguished the different structure state that uses front and back significantly; (5) this blood sampling revulseur after using breaks away from owing to the protruding wing 12,13 of two buttons and the protruding wing of shell guide groove, lost the momentum of unexpected release, can not remake normal blood sampling acupuncture and use, thus this utility model be a kind of can't reusable blood sampling revulseur.

Below Figure of description is further specified as follows: Fig. 1 be can't reusable blood sampling revulseur use pre-structure position view; Fig. 2 is the locations of structures sketch map during it uses; Fig. 3 is the locations of structures sketch map after it uses.Among the figure: 1 is button, and 2 is spring, and 3 is pricker, and 4 is shell, 5 is the pin medicated cap, and 6,7 is the spacing shoulder of shell, and 8,9 is the spacing shoulder of button, and 10,11 is the protruding wing of shell guide groove, 12,13 is the protruding wing of button, and 14,15 for using back button recess, and 16 is the revulseur transverse plane.

Embodiment of the present utility model is very simple, can be as follows: (1) is designed by shown in Figure 1, button assembly should design the spacing shoulder 8,9 of button and the protruding wing 12,13 of button during design, and shell 4 planted agents design has the spacing shoulder 6,7 of shell and the protruding wing 10,11 of shell guide groove; The button assembly of barbed pin 3 and pin medicated cap 5 can be with transparent or semitransparent polypropylene plastics injection mo(u)lding; Pricker 3 can be made with the 1Cr18Ni9Ti rustless steel, after sterilizing with button, the once injection molded button assembly of pin medicated cap; The shell 4 of tape guide groove also can adopt plastic injection-moulded forming; (2) be installed in the shell 4 of tape guide groove making the good barbed pin and the button assembly of pin medicated cap, pack through sterilization, just finished preferably originally can't reusable blood taking needle system device enforcement; During use, only remove pin medicated cap 5,, just can implement this utility model well, but entirely accurate ground reaches the blood sampling purpose by described its blood sampling operation method of top description.

Claims (1)

1, a kind of can't reusable blood sampling revulseur, it is characterized in that: it is by the button (1) of a barbed pin (3), spring (2), the shell of tape guide groove (4), pin medicated cap (5) formation that is linked and packed jointly, its mutual alignment and annexation are: button (1) constitutes a monolithic devices assembly with pricker (3) and pin medicated cap (5), the monolithic devices assembly that the button (1) of barbed pin (3) and pin medicated cap (5) constitute is installed in the shell (4) of tape guide groove together by spring (2), the bar portion of button (1) is provided with the protruding wing of button (12) of two protrusions, (13), the interior guide groove inwall of shell (4) is provided with two protruding wings of shell guide groove (10) of protrusion, (11), when the button assembly device of barbed pin (3) and pin medicated cap (5) is gone in shell (4) guide groove, the protruding wing of button (12), (13) with the guiding protruding wing of shell guide groove (10), (11) accept relatively, be respectively arranged with about the top of button (1) and protrude the spacing shoulder of button (8), (9) and with the top of shell (4) about the spacing shoulder of shell (6) that is provided with, (7) matched, the distance range of motion is subjected to the spacing shoulder of shell (6) on shell (4) top on button (1) axle by the elastic force of spring (2), (7) restriction.

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