CN102406505B - Split-type hemostix with safety protection device - Google Patents
Split-type hemostix with safety protection device Download PDFInfo
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- CN102406505B CN102406505B CN201110260131.XA CN201110260131A CN102406505B CN 102406505 B CN102406505 B CN 102406505B CN 201110260131 A CN201110260131 A CN 201110260131A CN 102406505 B CN102406505 B CN 102406505B
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Abstract
The invention provides a split-type hemostix with a protection device. In the invention, when a safety sleeve is located at a second locating position, an external force transmission mechanism is arranged on the wall of the safety sleeve corresponding to a connector and is matched with the connector; and external force acts on the connector through the safety sleeve by adopting the external force transmission mechanism so as to detach the connector from the upper end of a cylinder. After the split-type hemostix with the protection device is used for drawing blood from a patient, the safety sleeve is located at the second locating position, and a needle head is hidden in the sleeve, thus preventing damage on medical care personnel; and at this time medical care personnel can enable the external force to act on the connector through the safety sleeve by adopting the external force transmission mechanism so as to conveniently detach the connector from the cylinder so that the cylinder containing blood can be directly utilized as a chemical test tube.
Description
Technical field
The invention belongs to technical field of medical instruments, be specifically related to a kind of split type hemostix with preventer.
Background technology
When Hospitals at Present is taken a blood sample chemical examination to patient, conventionally use disposable syringe to take a blood sample, then the blood sample of collection is transferred to in vitro blood sample being chemically examined of chemical examination use.Blood sample is being transferred to chemical examination from syringe with the process of test tube, once careless manipulation easily produces the pollution to blood sample.
For solving the problems of the technologies described above, Chinese patent literature CN201609369U discloses a kind of hemostix, comprises syringe, joint, fixed cover, syringe needle, piston and push rod, and the cross section of described syringe is square, and its four angles are arc, and push rod and piston removably connect.On the inwall of joint lower end, be provided with female thread, the outer wall of syringe upper end is provided with external screw thread, and described joint is threaded with syringe; The top of push rod is provided with fixed block, and the cross section of fixed block is tetragon, and wherein an opposite side is straight line, and another opposite side is camber line; Piston is provided with for holding the outlet of fixed block turnover for the cylindrical chamber that holds of fixed block rotation in piston, to be provided with one, and the width of this outlet is slightly wider than the width of fixed block.After using hemostix to take a blood sample, pull push rod, make the bottom of piston arrives syringe, due to rotating push-rod, make the straight line opposite side of fixed block corresponding with outlet, just fixed block can be exited from cylindrical chamber, and then extract push rod out from circular hole, the joint with syringe needle of laying down syringe upper end, hemostix just becomes the test tube of a splendid attire blood sample like this, test tube can be directly used in to chemical examination and use.
After using hemostix in above-mentioned technology to take a blood sample, because syringe needle exposes, medical personnel are in the process of the joint with syringe needle of laying down syringe upper end, and the syringe needle that is easy to be exposed is stabbed, and is easy to cause infection.
For technical problem that solve to use syringe needle that in the process of disposable syringe, medical personnel are exposed to stab, american documentation literature US6206853B1 discloses a kind of automatic retracted entry needle, it comprises that one end is provided with the cylindrical shell of entry needle supportive device, in described cylindrical shell, be provided with movably piston, described cylindrical shell is arranged in sleeve and can slides, and between described sleeve and cylindrical shell, is provided with spring; At least one elastic flange matches with the part of described cylindrical shell and forms described cylindrical shell with respect to the first position location of sleeve, and when the first position location, spring is exposed to outside sleeve in compressive state while syringe needle; Positioner is positioned at the second position location with respect to sleeve by cylindrical shell, when the second position location spring recover at least in part naturalness simultaneously syringe needle be hidden in described sleeve.When described piston movement touches described elastic flange when the described cylindrical shell bottom, described elastic flange discharges from described barrel office, thereby described automatic retracted entry needle changes to the state in the second position location from the state in the first position location, spring promotes described cylindrical shell motion until it is positioned at the second position location.Described positioner comprises the circlip arranging around described cylindrical shell, described circlip when in the first position location between described sleeve and described cylindrical shell and in compressive state, when the second position location in the raw; The end of described sleeve is provided with cannula portion, and when the second position location, circlip at least a portion is locked in cannula portion in described sleeve ends and cannula portion between at least one shoulder, thereby described cylindrical shell is locked in the second position location.
Automatic retracted entry needle in above-mentioned technology, when in the first position location, syringe needle is exposed to sleeve injectable outward; After injection, described automatic retracted entry needle is converted to when the second position location by the first position location, and syringe needle is hidden in described sleeve, thereby the situation that the syringe needle of having avoided medical personnel to be exposed is stabbed occurs.But, when above-mentioned technology is used for chemically examining dual-purpose hemostix with the blood sampling of joint, when in the second position location, not only described syringe needle is hidden in described sleeve, described joint also can be hidden in described sleeve inner, so just have no idea again described joint to be unloaded from described syringe, thereby can not realize again the dual-purpose object of described hemostix blood sampling chemical examination.
Summary of the invention
For this reason, when technical problem to be solved by this invention is entry needle preventer of the prior art for the dual-purpose hemostix of the chemical examination of taking a blood sample, described in when described syringe needle is hidden in to described sleeve, joint also can be hidden in described sleeve inner, so just have no idea again described joint to be unloaded from described syringe, thereby can not realize again the dual-purpose object of described hemostix blood sampling chemical examination, and then a kind of a kind of split type hemostix with preventer that can easily described joint be unloaded from described syringe is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A split type hemostix with preventer, comprises cylindrical shell and push rod, and described push rod is arranged in described cylindrical shell and is suitable for sliding along described cylinder inboard wall; Syringe needle, described syringe needle forms by entry needle with for fixing described entry needle and the joint that is flexibly connected described cylindrical shell simultaneously; Safety sleeve, described safety sleeve is socketed on outside described cylindrical shell; The relatively described cylindrical shell of described safety sleeve is provided with the first position location and the second position location, and described safety sleeve is when the first position location, and the entry needle of described syringe needle is exposed to outside safety sleeve; Described safety sleeve is when the second position location, and described syringe needle is hidden in described safety sleeve; Described safety sleeve is when the second position location, on the barrel of the described safety sleeve corresponding with described joint, be equipped with outer force transfer mechanism with described joint, described outer force transfer mechanism is applied to external force on described joint by described safety sleeve, and described joint is unloaded from described cylindrical shell upper end.
One or more screens grooves that described outer force transfer mechanism comprises one or more salient points and matches with described salient point; When described safety sleeve is during in the second position location, described salient point is suitable for snapping in described screens groove to be realized external force is applied on described joint by described safety sleeve.
Described salient point is arranged on described joint, and described screens groove is arranged in described safety sleeve.
Corresponding described screens groove top arranges gathering sill, and described salient point is suitable for sliding along described gathering sill; Between described gathering sill and described screens groove, by screens bar, separated.
The extension of described salient point lower end is provided with domatic, and the described domatic described screens bar of described salient point process that is suitable for slips in described screens groove.
Described salient point is symmetrical arranged two centered by described push rod; Correspondingly, described screens groove be take centered by described push rod and is symmetrical arranged as two.
Described outer force transfer mechanism comprises the flexible glue portion that is arranged on described safety sleeve middle part, and when described safety sleeve is during in the second position location, described flexible glue portion is positioned at described joint, grips described flexible glue portion and grip can be passed to described joint.
Also be provided with the first locking mechanism that described safety sleeve is positioned to the first position location.
Described the first locking mechanism is included in the breach arranging in described cylindrical shell lower end flange, and what in described safety sleeve lower end, arrange buckles; Described buckling by cingulum and discount forms, and described cingulum is suitable for snapping in described breach, and the size of described discount is greater than the size of described breach.
Described discount is inverted trapezoidal setting.
Also be provided with the second locking mechanism that described safety sleeve is positioned to the second position location.
Described the second locking mechanism comprises that groove and one or more are suitable for snapping in the projection in described groove.
Described groove is arranged on described joint; Described projection is arranged on described sleeve lining.
Described joint external diameter is greater than described cylindrical shell external diameter, is being provided with the changeover portion that an external diameter increases from bottom to top gradually near described cylinder top.
Described groove circumferentially arranges along described joint, and described projection is circumferentially uniformly distributed along described safety sleeve.
Described groove is cannelure, and described projection is four.
Also comprise spring, described spring shaft is to being arranged between described safety sleeve and described cylindrical shell; Between described safety sleeve and described cylindrical shell, have and be suitable for spring shaft to the space arranging; Between described safety sleeve and described cylindrical shell, form the limiting component that described spring is carried out to upper limit, the flange of described cylindrical shell lower end carries out lower limit to described spring.
Described safety sleeve is comprised of upper bush and lower sleeve, and the internal diameter of described upper bush is less than the internal diameter of described lower sleeve, between described upper bush and lower sleeve, forms joint portion, and described joint portion forms described limiting component.
Described push rod upper end is provided with the crosshead of being convenient to fracture.
Described push rod top is provided with the piston seat that described cylindrical shell is carried out to bottom sealing, and the dop that is provided with four screens grooves is extended in described piston seat lower end; Described crosshead is connected in described dop.
Described cylindrical shell lower end is provided with carries out spacing tail plug to described piston seat.
Technical scheme of the present invention has following useful technique effect compared to existing technology:
(1) the split type hemostix with preventer of the present invention, described safety sleeve is when the second position location, and described syringe needle is hidden in described safety sleeve; Described safety sleeve is when the second position location, on the barrel of the described safety sleeve corresponding with described joint, be equipped with outer force transfer mechanism with described joint, described outer force transfer mechanism is applied to external force on described joint by described safety sleeve, and described joint is unloaded from described cylindrical shell upper end.After using the split type hemostix with preventer of the present invention to take a blood sample to patient, described safety sleeve is in the second position location, and described syringe needle is hidden in described sleeve, can not damage medical personnel.Now medical personnel are applied to external force on described joint by described safety sleeve by outer force transfer mechanism, can easily described joint be unloaded from described cylindrical shell, thereby the cylindrical shell that fills blood just can be used as test tube, directly use.
(2) the split type hemostix with preventer of the present invention, is provided with described safety sleeve is positioned to the first locking mechanism of the first position location and the second locking mechanism that described safety sleeve is positioned to the second position location.When described the first locking mechanism is locked in the first position location by safety sleeve, the syringe needle of described hemostix is stable to be exposed to outside described safety sleeve, has guaranteed that blood sampling the stable of work carries out.When described the second locking mechanism is locked in the second position location by safety sleeve, described safety sleeve is stable to be hidden syringe needle in it, has guaranteed that described syringe needle can not damage medical personnel, and can easily described joint have been unloaded from described cylindrical shell.
(3) the split type hemostix with preventer of the present invention, described spring shaft is to being arranged between described safety sleeve and described cylindrical shell; Between described safety sleeve and described cylindrical shell, have and be suitable for spring shaft to the space arranging; Between described safety sleeve and described cylindrical shell, form the limiting component that described spring is carried out to upper limit, the flange of described cylindrical shell lower end carries out lower limit to described spring.Spring is set and can, so that described safety sleeve automatically moves to the second position location by the first position location under the effect of spring force, have guaranteed the efficiency of actual blood sampling work.
(4) the split type hemostix with preventer of the present invention, described push rod upper end is provided with the crosshead of being convenient to fracture.After the arranging of crosshead guaranteed blood sampling, described push rod is easily fractureed, and can easily described cylindrical shell be converted to chemical examination ware and use.
(5) the split type hemostix with preventer of the present invention, described push rod top is provided with the piston seat that described cylindrical shell is carried out to bottom sealing, and described cylindrical shell lower end is provided with carries out spacing tail plug to described piston seat.This set guaranteed described cylindrical shell be used as chemical examination ware while using to chemically examining the stability of ware in the sealing of blood sample and chemical examination work process.
Accompanying drawing explanation
For the present invention is more clearly understood, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.Wherein,
Fig. 1 is the perspective exploded view of the split hemostix with preventer of the present invention;
Fig. 2 is the partial sectional view of described safety sleeve split hemostix with preventer of the present invention when the first position location;
Fig. 3 be described safety sleeve when the second position location section by the partial sectional view of the split hemostix with preventer of the present invention of described salient point;
Fig. 4 is the partial enlarged drawing of Fig. 3;
Fig. 5 is the partial sectional view that described safety sleeve arranges the split hemostix with preventer of the present invention of groove described in when the second position location on joint;
Fig. 6 is the partial enlarged drawing of Fig. 5.
In figure, Reference numeral is expressed as: 1-cylindrical shell, 101-flange, 102-breach, 103-tail plug, 104-changeover portion, 2-push rod, 201-crosshead, 202-handle, 3-piston seat, 301-screens hole, 302-dop, 4-spring, 5-joint, 501-groove, 502-salient point, 503-is domatic, 6-syringe needle, 601-entry needle, 7-safety sleeve, 701-upper bush, 702-lower sleeve, 703-joint portion, 705-projection, 706-buckles, 7061-cingulum, 7062-discount, 707-gathering sill, 708-screens groove, 709-screens bar.
The specific embodiment
As shown in Figure 1, the split type hemostix with preventer of the present invention comprises cylindrical shell 1 and push rod 2, and described push rod 2 is arranged in described cylindrical shell 1 and is suitable for sliding along described cylindrical shell 1 inwall; Syringe needle 6, described syringe needle 6 forms by entry needle 601 with for fixing described entry needle 601 and the joint 5 that is flexibly connected described cylindrical shell 1 simultaneously; Safety sleeve 7, described safety sleeve 7 is socketed on outside described cylindrical shell 1.
As shown in Fig. 2, Fig. 3, Fig. 5, described push rod 2 upper ends are provided with the crosshead 201 of being convenient to fracture, and lower end is provided with handle 202.Described push rod 2 tops are provided with the piston seat 3 that described cylindrical shell 1 is carried out to bottom sealing, and the dop 302 that is provided with four screens holes 301 is extended in described piston seat 3 lower ends; Described crosshead 201 is connected in described dop 302.Described piston seat 3 is positioned at described cylindrical shell 1 inside and is suitable for sliding along described cylindrical shell 1 inwall, is provided with 103 pairs of described piston seats 3 of tail plug carries out spacingly in described cylindrical shell 1 lower end, prevents that described piston seat 3 from use skidding off described cylindrical shell 1.
The relatively described cylindrical shell 1 of described safety sleeve 7 is provided with the first position location, and as shown in Figure 2, described safety sleeve 7 is when the first position location, and the entry needle 601 of described syringe needle 6 is exposed to outside safety sleeve 7; Split type hemostix with preventer of the present invention is also provided with the first locking mechanism that described safety sleeve 7 is positioned to the first position location.As shown in Figure 1, in described cylindrical shell 1 lower end flange 101, be provided with breach 102, in described safety sleeve 7 lower edge, arrange and buckle 706, describedly buckle 706 and comprise that cingulum 7061 and discount 7062 forms, the size of described discount 7062 is greater than the size of described breach 102, described cingulum 7061 shapes and described breach 102 shapes are suitable, and described discount 7062 is inverted trapezoidal setting.
Describedly buckle 706 form the first locking mechanism together with described breach 102.As shown in Figure 2, described safety sleeve 7 is pulled in the process of described cylindrical shell 1 lower end, described syringe needle 6 is progressively exposed to outside described safety sleeve 7, cingulum 7061 is snapped in to the screens that utilizes 102 pairs of described discounts 7062 of described breach in described breach 102, thereby realize to described safety sleeve 7 locking position with respect to described cylindrical shell 1.Now safety sleeve 7 is positioned at the first position location, and described syringe needle 6 is exposed to outside safety sleeve 7, at this moment can use described hemostix human body is injected or taken a blood sample.
The relatively described cylindrical shell 1 of described safety sleeve 7 is also provided with the second position location, and described safety sleeve 7 is when the second position location, and described syringe needle 6 is hidden in described safety sleeve 7; Split type hemostix with preventer of the present invention is also provided with the second locking mechanism that described safety sleeve 7 is positioned to the second position location.On described joint 5, be provided with one or more salient points 502, in described safety sleeve 7, be provided with the one or more screens grooves 708 that match with described salient point 502, as shown in Figure 3 and Figure 4, salient point described in the present embodiment 502 is symmetrical arranged two centered by described push rod 2; Correspondingly, described screens groove 708 be take centered by described push rod 2 and is symmetrical arranged as two.Corresponding described screens groove 708 tops are provided with gathering sill 707, and described salient point 502 is suitable for sliding along described gathering sill 707; Between described gathering sill 707 and described screens groove 708, by screens bar 709, separated.When described safety sleeve 7 moves to the process of the second position location from the first position location, described protruding 705 enter in described screens groove 708 through described screens bar 709 inlay cards.
Described salient point 502 and described screens bar 709, screens groove 708 common formation the second locking mechanisms.As shown in Figure 3 and Figure 4, promoting described safety sleeve 7 is moved to the direction of described cylindrical shell 1 upper end by the first position location, described in when described salient point 502 inlay cards enter the screens groove 708 of described guide groove below, safety sleeve 7 will be fixed with respect to the position of described cylindrical shell 1, now described safety sleeve 7 is positioned at the second position location, and described syringe needle 6 is hidden in described safety sleeve 7.
As can see from Figure 4, described salient point 502 lower ends are extended to be provided with one domatic 503, described domatic 503 and to be suitable for described salient point 502 and are slipped in described screens groove 708 through described screens bar 709.As shown in Figure 4, now salient point 502 is in described screens bar 709 tops, when promoting described safety sleeve 7, continue on described cylindrical shell 1 during extreme direction motion, owing to increasing with the height on the described screens bar relative described joint of 709 touching position 5 surfaces at described salient point 502, now described screens bar 709 produces elastic deformation.When described salient point 502 move to described screens groove 708 when interior described in screens bar 709 restore to the original state and stop described salient point 502 upwards to skid off from described screens bar 709, thereby realize the locking position to described safety sleeve 7.
Meanwhile, described salient point 502 and the outer force transfer mechanism of described screens groove 708 common formation.Described safety sleeve 7 is when the second position location, described salient point 502 snaps in described screens groove 708, now screw described safety sleeve 7 and can realize external force is applied on described joint 5 by described safety sleeve 7, thereby described joint 5 is unloaded from described cylindrical shell 1 upper end.
Split type hemostix with preventer of the present invention is when chemically examining human blood collection, first described in inciting somebody to action, buckling 706 buckles in described breach 102, as shown in Figure 2, described safety sleeve 7 is placed in the first position location, described syringe needle 6 is exposed to outside described safety sleeve 7, now can as common hemostix, to human body, take a blood sample.After blood sampling, as shown in the figure, described push rod 2 props up the tail plug 103 of described cylindrical shell 1 lower end away from described cylindrical shell 1 and described piston seat 3, now will described in buckle 706 from described breach 102, break from, promote described safety sleeve 7 and move to the second position location by the first position location, described in when described salient point 502 inlay cards enter the screens groove 708 of described guide groove below, safety sleeve 7 will be fixed with respect to the position of described cylindrical shell 1, described syringe needle 6 is hidden in described safety sleeve 7 and described syringe needle 6 is hidden in described sleeve, can not damage medical personnel.First medical personnel fracture described push rod 2 along described crosshead 201 belows, then by described salient point 502 and the common outer force transfer mechanism forming of described screens groove 708, can easily described joint 5 be unloaded from described cylindrical shell 1, thereby the cylindrical shell 1 that fills blood just can be used as test tube, directly use.
In other embodiments, described the second locking mechanism can consist of groove 501 and one or more projection 705 that is suitable for snapping in described groove 501.As shown in Figure 5 and Figure 6, groove described in the present embodiment 501 is arranged on described joint 5 places; On described sleeve lining, arrange four elastic protruding 705, described protruding 705 are uniformly distributed circumferentially, certain described protruding 705 also can be set to one or more and be other distribution stating sleeve lining, described protruding 705 object is set and is described protruding 705 inlay cards to enter in described groove 501, thereby realize the locking position to described sleeve.
As shown in Figure 5, described safety sleeve 7 is moved to the direction of described cylindrical shell 1 upper end by the first position location, when described protruding 705 inlay cards enter described groove 501 when interior described in safety sleeve 7 with respect to the position of described cylindrical shell 1, will again fix, now described safety sleeve 7 is positioned at the second position location, and described syringe needle 6 is hidden in described safety sleeve 7.
As can see from Figure 6, the external diameter of described joint 5 is greater than the external diameter of described cylindrical shell 1, described cylindrical shell 1 top is provided with the changeover portion 104 that an external diameter increases gradually, when described safety sleeve 7 moves to the process of the second position location from the first position location, described protruding 705 after described changeover portion 104 inlay card enter in described groove 501.As shown in Figure 6, now projection is 705 in described changeover portion 104 belows, and because the external diameter of described cylindrical shell 1 is less than two distances between projection 705 relatively, described protruding 705 deformation can not occur.When described safety sleeve 7 continues on described cylindrical shell 1 during extreme direction motion, owing to stating the external diameter at cylindrical shell 1 top in described changeover portion 104 places, increase gradually, now described protruding 705 will produce elastic deformation, as shown in Figure 6, described in when described protruding 705 move to described groove 501 place, projection 705 reinstatements inlay card enter in described groove 501.
In other embodiments, described outer force transfer mechanism can be set to the flexible glue portion at described safety sleeve 7 middle parts, when described safety sleeve 7 is during in the second position location, described flexible glue portion is positioned at described joint 5 places, grips described flexible glue portion and grip can be passed to described joint 5.
As preferred embodiment, the split type hemostix with preventer of the present invention also comprises spring 4, and as shown in Fig. 2, Fig. 3 and Fig. 5, described spring 4 is axially arranged between described safety sleeve 7 and described cylindrical shell 1; Between described safety sleeve 7 and described cylindrical shell 1, have and be suitable for the space that spring 4 axially arranges; Between described safety sleeve 7 and described cylindrical shell 1, form the limiting component that described spring 4 is carried out to upper limit, 101 pairs of described springs 4 of flange of described cylindrical shell 1 lower end carry out lower limit.In the present embodiment, described safety sleeve 7 is comprised of upper bush 701 and lower sleeve 702, the internal diameter of described upper bush 701 is less than the internal diameter of described lower sleeve 702, between described upper bush 701 and lower sleeve 702, forms joint portion 703, and described joint portion 703 forms described limiting component.After blood sampling, will described in buckle 706 from described breach 102, break from, described safety sleeve 7 can move to the second position location by the first position location automatically in the elastic force effect of spring 4.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments, and the apparent variation of being extended out thus or change are still among the protection domain in the invention claim.
Claims (17)
1. with a split type hemostix for preventer, comprise
Cylindrical shell and push rod, described push rod is arranged in described cylindrical shell and is suitable for sliding along described cylinder inboard wall;
Syringe needle, described syringe needle by entry needle and for fixing described entry needle and the joint that screw thread is flexibly connected described cylindrical shell simultaneously form; Safety sleeve, described safety sleeve is socketed on outside described cylindrical shell;
The relatively described cylindrical shell of described safety sleeve is provided with the first position location and the second position location, and described safety sleeve is when the first position location, and the entry needle of described syringe needle is exposed to outside safety sleeve; Described safety sleeve is when the second position location, and described syringe needle is hidden in described safety sleeve;
It is characterized in that,
Be provided with the second locking mechanism that described safety sleeve is positioned to the second position location, described the second locking mechanism comprises that groove and one or more are suitable for snapping in the projection in described groove, and described groove is arranged on described joint; Described projection is arranged on described sleeve lining, described joint external diameter is greater than described cylindrical shell external diameter, near described cylinder top, be provided with the changeover portion that an external diameter increases from bottom to top gradually, described safety sleeve is when the second position location, on the barrel of the described safety sleeve corresponding with described joint, be equipped with outer force transfer mechanism with described joint, described outer force transfer mechanism is applied to external force on described joint by screwing described safety sleeve, and described joint is unloaded from described cylindrical shell upper end.
2. split type hemostix according to claim 1, is characterized in that, one or more screens grooves that described outer force transfer mechanism comprises one or more salient points and matches with described salient point; When described safety sleeve is during in the second position location, described salient point is suitable for snapping in described screens groove to be realized external force is applied on described joint by described safety sleeve.
3. split type hemostix according to claim 2, is characterized in that, described salient point is arranged on described joint, and described screens groove is arranged in described safety sleeve.
4. split type hemostix according to claim 3, is characterized in that, corresponding described screens groove top arranges gathering sill, and described salient point is suitable for sliding along described gathering sill; Between described gathering sill and described screens groove, by screens bar, separated.
5. split type hemostix according to claim 4, is characterized in that, the extension of described salient point lower end is provided with domatic, and the described domatic described screens bar of described salient point process that is suitable for slips in described screens groove.
6. according to the split type hemostix described in claim 2 or 3 or 4 or 5, it is characterized in that, described salient point is symmetrical arranged two centered by described push rod; Correspondingly, described screens groove be take centered by described push rod and is symmetrical arranged as two.
7. split type hemostix according to claim 1, it is characterized in that, described outer force transfer mechanism comprises the flexible glue portion that is arranged on described safety sleeve middle part, when described safety sleeve is during in the second position location, described flexible glue portion is positioned at described joint, grips described flexible glue portion and grip can be passed to described joint.
8. split type hemostix according to claim 1, is characterized in that, is also provided with the first locking mechanism that described safety sleeve is positioned to the first position location.
9. split type hemostix according to claim 8, is characterized in that, described the first locking mechanism is included in the breach arranging in described cylindrical shell lower end flange, and what in described safety sleeve lower end, arrange buckles; Described buckling by cingulum and discount forms, and described cingulum is suitable for snapping in described breach, and the size of described discount is greater than the size of described breach.
10. split type hemostix according to claim 9, is characterized in that, described discount is inverted trapezoidal setting.
11. split type hemostixes according to claim 1, is characterized in that, described groove circumferentially arranges along described joint, and described projection is circumferentially uniformly distributed along described safety sleeve.
12. split type hemostixes according to claim 1, is characterized in that, described groove is cannelure, and described projection is four.
13. according to the split type hemostix described in claim 1 or 2 or 3 or 4 or 5 or 7 or 8 or 9 or 10 or 11 or 12, it is characterized in that, also comprises spring, and described spring shaft is to being arranged between described safety sleeve and described cylindrical shell; Between described safety sleeve and described cylindrical shell, have and be suitable for spring shaft to the space arranging; Between described safety sleeve and described cylindrical shell, form the limiting component that described spring is carried out to upper limit, the flange of described cylindrical shell lower end carries out lower limit to described spring.
14. split type hemostixes according to claim 13, it is characterized in that, described safety sleeve is comprised of upper bush and lower sleeve, the internal diameter of described upper bush is less than the internal diameter of described lower sleeve, between described upper bush and lower sleeve, form joint portion, described joint portion forms described limiting component.
15. split type hemostixes according to claim 14, is characterized in that, described push rod upper end is provided with the crosshead of being convenient to fracture.
16. split type hemostixes according to claim 15, is characterized in that, described push rod top is provided with the piston seat that described cylindrical shell is carried out to bottom sealing, and the dop that is provided with four screens grooves is extended in described piston seat lower end; Described crosshead is connected in described dop.
17. split type hemostixes according to claim 16, is characterized in that, described cylindrical shell lower end is provided with carries out spacing tail plug to described piston seat.
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| CN201110260131.XA CN102406505B (en) | 2011-09-05 | 2011-09-05 | Split-type hemostix with safety protection device |
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| CN201110260131.XA CN102406505B (en) | 2011-09-05 | 2011-09-05 | Split-type hemostix with safety protection device |
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| CN102406505B true CN102406505B (en) | 2014-04-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103330975B (en) * | 2013-07-17 | 2015-08-05 | 魏颖德 | A kind of Simple safe auto-disable syringe |
| CN103736175B (en) * | 2014-02-12 | 2015-08-19 | 刘友红 | Disposable anti-stabbed syringe |
| CN106390233B (en) * | 2016-08-30 | 2023-05-05 | 成都普什医药塑料包装有限公司 | Disposable automatic pop-up medical needle |
| WO2024061026A1 (en) * | 2022-09-21 | 2024-03-28 | 普昂(杭州)生命科技有限公司 | Safety syringe |
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|---|---|---|---|---|
| CN1518463A (en) * | 2001-06-20 | 2004-08-04 | ���˶ٵϿ�ɭ��˾ | Safety shield system for prefilled syringes |
| CN200970236Y (en) * | 2006-10-23 | 2007-11-07 | 昆山和兴医疗科技有限公司 | Safety self-destroy type hemostix |
| CN201085626Y (en) * | 2008-01-28 | 2008-07-16 | 刘玉云 | Blood sampling equipment of test tube |
| CN202342047U (en) * | 2011-09-05 | 2012-07-25 | 汪贤宗 | Split type blood collector with safety protection device |
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| CN102406505A (en) | 2012-04-11 |
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Effective date of registration: 20160729 Address after: 522322 Guangdong province Puning City quicksand North Nanyuan Industrial Zone Patentee after: GUANGDONG HAIOU MEDICAL APPARATUS STOCK Co.,Ltd. Address before: 518104, No. 267-269, Wan An Road, Wan Feng Village, manholes Town, Guangdong, Shenzhen Patentee before: Wang Xianzong |
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Denomination of invention: Split type blood sampler with safety protection device Effective date of registration: 20230324 Granted publication date: 20140402 Pledgee: Agricultural Bank of China Limited Puning City Branch Pledgor: GUANGDONG HAIOU MEDICAL APPARATUS STOCK Co.,Ltd. Registration number: Y2023980036077 |