CN1929887B - Retractable syringe with plunger disabling system - Google Patents
Retractable syringe with plunger disabling system Download PDFInfo
- Publication number
- CN1929887B CN1929887B CN2005800081597A CN200580008159A CN1929887B CN 1929887 B CN1929887 B CN 1929887B CN 2005800081597 A CN2005800081597 A CN 2005800081597A CN 200580008159 A CN200580008159 A CN 200580008159A CN 1929887 B CN1929887 B CN 1929887B
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- Prior art keywords
- syringe
- piston element
- needle
- plunger
- needle mount
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Abstract
A retractable, single use syringe (10) comprises a barrel (20), a collar (60) mounted to the barrel, a retraction spring (70), a needle mount (40) located at a needle end (23) of the barrel and a plunger (30). The plunger comprises a first plunger member (31) and a second plunger member (33) that are releasably coupled to co-operatively maintain the retraction spring in an initial compressed state. The second plunger member (33) further comprises a seal (34) to prevent fluid leakage between plunger (30) and barrel (20). After depression of the plunger to deliver the fluid contents of the syringe, the first plunger member (31) engages the needle mount (40) with needle (12) attached thereto and is rotatably uncoupled from the second plunger member (33) to allow decompression of the retraction spring (70), which forces retraction of the first plunger member (31), needle mount (40) and needle (12) engaged therewith. The first plunger member (31) and the collar (60) comprise elements that co-operatively form a disabling means that prevents or at least minimizes the likelihood of subsequent depression or withdrawal of the plunger (30). Also following retraction of the first plunger member (31), the second plunger member (33) and seal (34) remains at the needle end (23) of the barrel (20) thereby preventing refilling and re-use of the syringe.
Description
Technical field
The present invention relates to syringe and plunger thereof.More particularly, the present invention relates to can permanent withdrawal disposable syringe, wherein plunger can cease to be in force automatically.
Background technology
Not having through the just way of shared syringe between the different users of fully sterilizing, is the principal element of HIV (human immunodeficiency virus) and hepatitis virus disseminating.This class disease can cause serious consequence to the patient, and simultaneously, society provides assistance for these patients and medical treatment and nursing needs a large amount of funds.
Another significant risk relevant with syringe with using uncleanly syringe needle is owing to not noting causing needle sting.For the law enforcement and the nursing staff that often run into the illegal drug user in vocational activity, this is a problem that merits attention.In addition, the illegal drug user is got used to their active dangerous side-product is stayed the public territory, for example depleted syringe, thereby to constituting danger regional active people such as park and campuses.
In hospital, medical centre and operating room, exhausted syringe also is dangerous, because needle sting can injure doctor, nurse and other professional medical-care personnel.
The latest development of syringe is that syringe needle is designed to permanently be withdrawn in the injector syringe.
For example, the open text WO 01/80930 of international monopoly discloses a kind of retractible disposable syringe, by guaranteeing the plunger total head in the liquid course of conveying, and guarantee permanent retracting needle, can prevent very effectively that syringe from reusing by plunger retract syringes syringe.
In these cases, withdrawal is finished by spring, and when injection finished, spring forced plunger and the syringe needle that engages to automatically retract in the syringe.
Though prior art is very effective, the retractable syringe of spring driven retraction mechanisms exists defective, when referring more particularly to the syringe of larger volume, and for example 3,5 and the 10mL syringe.For example, it is may be too big and can not be encased in the syringe to order about the spring of plunger and syringe needle withdrawal.
In addition, some user are disliked and the compressed gradually sensation of spring when plunger is depressed, and use spring driven retractable syringe thereby may hinder people.
Therefore, the objective of the invention is to overcome or alleviate at least one defective of prior art, or a kind of useful substitute is provided at least.
Summary of the invention
Therefore, broadly, the present invention relates to a kind of retractable syringe, this syringe comprises a spring drive mechanism, it automatically makes retractable syringe lose efficacy, thereby prevent what retractable syringe from re-using, spring is wherein remained on initial compressed state by plunger always, need reduce pressure with the injection needle withdrawal of ordering about plunger and engaging until spring.
Broadly, the invention still further relates to the plunger that is applicable to retractable syringe of the present invention.
An obvious advantage of syringe of the present invention and/or plunger is that plunger can hold spring relatively large under the initial compressed state, till the needs decompression is with retracted needle.
The obvious advantage of another of syringe of the present invention and/or plunger is, spring remains on compressive state after the liquid contents of syringe is carried always, and user need not this spring of compression during plunger is depressed.This provides more stably " sensation " for user during carrying.
First aspect, the invention provides a kind of plunger that is used for retractable syringe, described syringe has spring and needle mount, described plunger comprises first piston element and second piston element, the two is bonded together with easily unclamping, the described spring of collaborative maintenance is in initial compressed state, and design like this, after depressing the liquid contents of described plunger with conveying syringe, when the needle mount that need make described first piston element and engage is withdrawn, described first piston element and second piston element are separated, and impel described spring to reduce pressure under initial compressed state.
Second aspect, the invention provides a kind of retractable syringe, comprise plunger, syringe, spring and needle mount, described plunger comprises first piston element and second piston element, the two easily engages with unclamping, collaboratively keeps described spring in initial compressed state, and the two can break away from after with the liquid contents of conveying syringe depressing described plunger, thereby make described spring decompression, the needle mount withdrawal that causes described first piston element and engage.
Preferably, described syringe further comprises the neck ring that is fixed in syringe, it comprise one or more can with the outthrust of described plug engages.
Described one or more outthrust can comprise a plurality of ratchets, rib, finger piece, fin, tuberosity or similar structures.
Described one or more outthrust comprises first and second outthrust, and the two is located slidably and can move in corresponding first and second guide grooves of first piston element, to help to keep the required location of described plunger.
Retractable syringe may further include disabling device, depresses and/or withdraw from the probability of described first piston element to prevent, at utmost to reduce or to reduce at least after first piston element, needle mount and the withdrawal of the syringe needle that is fixed thereon.
In a kind of preferred version, described neck ring comprises a plurality of outthrust, and these outthrust comprise described first and second outthrust and third and fourth outthrust, and they can be cooperated with the re-spective engagement point on described first piston element, form described disabling device.
Preferably, third and fourth outthrust is a ratchet.
Preferably, in use, after the withdrawal of described first piston element, described a plurality of outthrust can be pressed on the re-spective engagement point on described first piston element, thereby can not withdraw from and/or depress described first piston element subsequently.
In particularly preferred scheme, the invention provides a kind of retractable syringe, comprising:
(i) syringe;
(ii) neck ring, described neck ring is fixed in syringe and comprises two ribs and two ratchets;
(iii) contraction spring;
(iv) needle mount, described needle mount be positioned at the needle end of syringe and syringe needle is housed and
(v) plunger, described plunger operationally is positioned at described syringe and can engages with described needle mount, and described plunger comprises:
(a) first piston element, described first piston element have two steps and two flanges; With
(b) second piston element, described second piston element comprises a sealing member.
Wherein, first piston element easily is connected with second piston element with unclamping, the described spring of collaborative maintenance is in initial compressed state, and subsequently depress described plunger with the liquid contents that discharges described syringe after, rotatably break away from, to impel described spring decompression, the described needle mount withdrawal that forces described first piston element and engage, wherein after needle mount and syringe needle withdrawal, described two ratchets can engage with the respective step on described first piston element, prevent that synergistically described first piston element from depressing subsequently, described two ribs can engage with the respective flanges on described first piston element, prevent that synergistically described first piston element from withdrawing from subsequently.
In a kind of preferred scheme, described injector designed becomes after described first piston element, needle mount and syringe needle withdrawal, second piston element and sealing member remain on the needle end of syringe, thereby prevent, at utmost reduce or reduce once more the potential probability of filled syringe, therefore prevented, at utmost reduced or reduce the potential probability that syringe reuses.
Except as otherwise noted, " the comprising " in the whole description and " comprising " are with open and non-enclosed use, and like this, described technical scheme or technical scheme combination can comprise that one or more technical scheme or technical schemes that other does not have to describe make up.
Description of drawings
Below with reference to accompanying drawing non-limiting embodiments of the present invention is described, wherein:
Fig. 1 is the side view of an embodiment of retractable syringe;
The axonometric chart that Fig. 2 is first piston element, have an embodiment of second piston element of sealing member and spring, wherein illustration shows the connected mode of first piston element and second piston element;
Fig. 3 is the axonometric chart of an embodiment of syringe;
Fig. 4 is the axonometric chart of an embodiment of syringe insert, O shape circle and needle mount;
Fig. 5 is the axonometric chart of an embodiment of neck ring;
Fig. 6 A is that plunger withdraws from the axonometric chart of the first neck ring outthrust in first guide groove of first piston element in the process; Fig. 6 B shows after the depression of plunger, and the first neck ring outthrust moves to the withdrawal groove from first guide groove; Fig. 6 C shows the second interior neck ring outthrust of second guide groove of first piston element;
Fig. 7 A and 7B show the axonometric chart that engages between first piston element and the needle mount successively;
Fig. 8 is the cutaway view that the syringe insert to be ready breaking away from from needle mount the first preceding piston element;
Fig. 9 is the cutaway view of first piston element that broken away from from needle mount of syringe insert;
Figure 10 is the axonometric chart of an embodiment of disabling device.
The specific embodiment
With reference to an embodiment shown in the figure 1, retractable syringe 10 comprises syringe 20, operationally is positioned at plunger 30 wherein and have the needle mount 40 of retractable needle 12.Needle mount 40 is fixed on the needle end 23 of syringe 20, and it has syringe insertion portion 50 and O shape circle 55.Plunger end 24 at syringe 20 is provided with finger grips 25A, 25B, in this plunger end 24 neck ring 60 is housed.Plunger 30 comprises first piston element 31 and second piston element 33 and the sealing member 34 that is fixed thereon, first piston element 31 has user action button 32, second piston element 33 easily connects first piston element 31 with unclamping, the collaborative spring 70 that keeps is in compressive state, till needs retracted needle fixture 40 and syringe needle 12.
With reference now to Fig. 2,, plunger 30 comprises first piston element and second piston element, and first piston element is that plunger rod 31, the second piston elements with user action button 32 are seal mount 33.When being assembled together, sealing member 34 is fixed on the cover for seat 35 in the seal mount 33, and in use, sealing part 34 prevents from or at utmost reduce liquid to spill between the inwall 21 of plunger 30 and syringe 20.
As the illustration among Fig. 2 specifically illustrates, seal mount 33 is fixed in plunger rod 31 by connecting device 300, in this embodiment, this connecting device 300 is that tab 37A, 37B in seal mount 33 is connected the bayonet socket that forms between groove 38A, the 38B and connects with corresponding in plunger rod 31.Connect the plunger rod 31 that groove 38A, 38B be designed to allow seal mount 33 when installing and carry out limited vertically moving (being no more than about 1-2mm).
Plunger rod further comprises a plurality of abutments, and in the present embodiment, step 350A, 350B (not shown) and flange 351A, 351B can cooperate with the corresponding outthrust on the neck ring 60, forms disabling device 80, will describe in detail hereinafter.
With reference to figure 3, needle mount 40 and syringe insert 50 are assemblied in the needle end 23 of syringe 20, and neck ring 60 is fixed on plunger end 24.Taper joint 28A, 28B (not shown) help fixing and keep needle mount 40.Syringe 20 also includes in plunger end 24 and is beneficial to locating slot 29A, 29B fixing and maintenance neck ring 60, comprises the cover for seat 210 that is used for fixing O shape circle 55 in needle end 23.
With reference to figure 3 and Fig. 4, syringe insert 50 has annular solid 51, and annular solid 51 has substrate 52 and arm 53A, 53B, and arm 53A, 53B have corresponding anchor clamps 56A, 56B, and anchor clamps 56A, 56B have inclined-plane 57A, 58B.O shape circle 55 adapts to the cover for seat 210 of syringe 20, so that sealing between the inwall 21 of needle mount body 41 and syringe 20.
In the time of in being assembled into syringe 10, the base rim 43 of needle mount 40 is blocked by anchor clamps 56A, the 56B of the respective arms 53A of syringe insert 50,53B, prevents that needle mount 40 from moving on plunger end 24 directions of syringe 20.Preferably, arm 53A, the 53B of syringe insert 50 are orientated with the angle that corresponding plunger bonding part 44A, 44B with needle mount 40 are about 90 degree.
The advantage that needle mount 40 is brought is, if syringe needle buckles or prickle is arranged, perhaps changes needle gauge (promptly between filling and carrying), and user can be changed syringe needle and can not influence retraction mechanism.
A feature of needle mount 40 is, it can comprise the syringe needle accessory of needed any kind, and for example road strategic point (luer) circular cone 400, for example has road strategic point locking running-on or road strategic point slip running-on, but is not limited to these.
With reference to figure 3 and Fig. 5, syringe 20 comprises locating slot 29A, 29B (locating slot 29A is not shown) in plunger end 24, and they help fixedly neck ring 60.Neck ring 60 has main body 61, and it has a plurality of outthrust, comprises ratchet 62A, 62B and rib 63A, 63B.Neck ring 60 comprises that further syringe engages shoulder 65A, 65B (shoulder 65B is not shown), and they adapt to corresponding locating slot 29A, the 29B (29B is not shown) of syringe 20, thereby neck ring 60 are fixed in the plunger end 24 of syringe 20.
The operation of explanation assembled syringe 10 now.
As shown in Figure 2, with plunger 30 assemblings, the piston element 31 of winning easily is connected by connecting device 300 with second piston element 33 with unclamping, thereby spring 70 is remained on compressive state, when the syringe needle 12 that needs retracted needle fixture 40 and be mounted thereon till.
With reference to figure 6A, 6B and 6C, withdraw from so that during at plunger 30 with liquid filling syringe 20, the rib 63A of neck ring 60 is slidably located in the first guide groove 311A of plunger rod 31, and the rib 63B of neck ring is slidably located in the second guide groove 311B (shown in Fig. 6 C).This design has prevented that plunger from rotating with respect to neck ring 60 and needle mount 40, and proofreaies and correct the plunger assembly 340 that engages needle mount 40 by plug engages part 44A, the 44B of needle mount 40.
Lean against the abutment 360A among the guide groove 311A on the rib 63A of neck ring 60 and lean against abutment 360B among the guide groove 311B on the rib 63B, restriction plunger 30 withdraws from.Therefore the ad-hoc location of abutment 360A, 260B among respective guide slots 311A, the 311B has determined the length that plunger is advanced, thereby has determined to be drawn into the volume of the liquid in the syringe 20.For example, Fig. 2 shows the location of the abutment 360A of 3mL syringe; For the 5mL syringe, flange 351A is as abutment 360A.
After plunger 30 withdraws from end, come the liquid contents of conveying syringe 10 by depression of plunger 30.
After conveying finished, following three things can take place.
At first, needle mount 40 breaks away from from syringe insert 50, makes needle mount 40 and syringe needle 12 withdrawals.
Secondly, plunger rod 31 engages with needle mount 40 by engagement device 340, thus retracted needle fixture 40 and syringe needle 12.
The 3rd, plunger rod 31 and potted component 33 rotary disengagings, thus make spring 70 decompressions, syringe needle 12 withdrawals of ordering about plunger rod 31, needle mount 40 and being attached thereto.
After conveying finishes, for from syringe 20 release needle mount 40, the plunger lip 366 of plunger rod 31 is directly outwards moved respective arms 53A, the 53B of syringe insert 50 forcibly on direction shown in Figure 3, thereby breaks away from anchor clamps 56A, 56B from the base rim 43 of needle mount 40.What meanwhile take place is that barb 342A, the 342B of plunger rod 31 engages flange 47A, the 47B in the needle mount 40, thereby helps by plunger 30 retracted needle fixtures 40, shown in Fig. 7 A and Fig. 7 B.
From Fig. 8 and Fig. 9 as can be seen, as indicated by solid arrow, the plunger lip 366 of plunger rod 31 is radially outward launched arm 53A, the 53B of syringe insert 50.Inclined-plane 57A, the 57B of arm 53A, 53B pasting plunger lip 366 and sliding, and after anchor clamps 56A, the 56B of arm 53A, 53B cross the base rim 43 of needle mount 40, causes that syringe insert 50 slides to O shape circle 55.
Preferably with reference to figure 9, the respective corners 58A of arm 53A, 53B, 58B lean against the outside of needle mount body 41, with permanent release needle mount 40, and make it by syringe insert 50 and seal mount 33 and sealing member 34, sealing part 34 remains on the needle end 23 of syringe 20 by spring 70.In this position, syringe insert 50 can not block needle mount 40 again, thereby makes syringe 10 permanent inefficacies, to prevent to ressemble needle mount 40.
In Fig. 8 and embodiment shown in Figure 9, except the strategic point circular cone 400 of road, can also be clear that road strategic point locking screw (luer lock thread) 410.In addition, can use road strategic point slip interface (luer slip) (not shown).
Preferably with reference to figure 7A, in the barb 342A of corresponding plunger engagement device 44A, 44B in needle mount 40 by plunger rod 31, the 342B engaging process, on respective complementary inclined-plane 46A, the 46B that the inclination edge 343A of arm 341A, the 341B that barb is arranged of plunger rod 31,343B lean against needle mount 40, this forces plunger rod 31 to rotate a little with respect to potted component 33 according to the direction shown in the arrow among Fig. 7 A, impels bayonet socket to connect 300 and breaks away from.
The disengaging of plunger rod 31 and seal mount 33 makes spring 70 decompression, thereby promotes wheel rim 330A, 330B on seal mount 33 and the plunger rod 31, thereby forces plunger rod 31 and needle mount 40 and the syringe needle 12 that engages is withdrawn together.Seal mount 33 and syringe insert 50 remain on the needle end 23 of syringe 20.
With reference to figure 6C, the rib 63B of neck ring 60 is positioned at guide groove 311B, makes plunger rod 31 limited rotation in blade 310D and 310E, thereby aims at step 35A, 350B on ratchet 62A, 62B and the plunger rod 31.
With reference to Figure 10, step 350A, 350B design in the following manner: when plunger rod 31 withdrawals, ratchet 62A, 62B move thereon, but in case start disabling device 80, ratchet 62A, 62B (not shown) are close to step 350A, 350B (not shown), thereby stop depression of plunger bar 31 subsequently.
Can also see that in Figure 10 rib 63A, the 63B of neck ring 60 are close to flange 351A, the 351B of plunger rod 31, disabling device 80 has prevented further withdrawing from of plunger rod 31.
It should also be noted that, after plunger rod 31 and needle mount 40 withdrawals, because the decompression of spring 70, syringe insert 50, O shape circle 55, seal mount 33 and sealing member 34 are pushed to needle end 23 (not shown) of syringe 20, thereby remain on the needle end 23 of syringe 20, therefore prevented to recharge syringe 20 from needle end 23.
According to above explanation, the invention provides a kind of practicality, simple to operate, disposable syringe cease to be in force automatically, this syringe has prevented to reuse, thereby has reduced the probability of pathophoresis to greatest extent, has also reduced the probability of user needle sting simultaneously.
In addition, spring driven retraction mechanism of the present invention can effectively hold the withdrawal spring of large volume syringe (for example 3,5 and even 10mL syringe).
The purpose of whole description is explanation the preferred embodiments of the invention, but not the present invention is limited to the combination of any one embodiment or specified features.Under the premise without departing from the spirit of the present invention, can make multiple change and adjustment to illustrational embodiment.
Claims (11)
1. plunger (30) that is used for retractable syringe (10), described retractable syringe (10) has syringe (20), spring (70) and the needle mount (40) that has retractable needle (12), described plunger (30) comprises first piston element (31) and second piston element (33), the two connects (300) by bayonet socket and releasably is bonded together, thereby the described spring of collaborative maintenance is in initial compressed state, it is characterized in that, described needle mount (40) is fixed on the needle end (23) of the syringe (20) that has syringe insertion portion (50), described needle mount (40) comprises main body (41), this main body (41) has plug engages device (44A, 44B), described first piston element (31) further comprises the device (340) that is used to engage needle mount (40), this device (340) that is used to engage needle mount (40) comprises two opposed arm (341A with barb, 341B), described arm (341A with barb, 341B) have the inclination edge (343A, 343B); Described plug engages device (44A, 44B) comprise with described inclination edge (343A, 343B) inclined-plane of respective complementary (46A, 46B); Thereby when described needle mount (40) when described syringe insertion portion (50) breaks away from, described opposed arm (341A with barb, barb (342A 342B), 342B) respectively with the plug engages device (44A of described needle mount (40), 44B) engage so that depress described plunger (30) with the liquid contents of carrying described syringe (10) after, described needle mount (40) and described syringe needle (12) can be withdrawn, whereby between described first piston element (31) and described needle mount (40) joint aging time, described inclination edge (343A, 343B) lean against the inclined-plane (46A of described respective complementary respectively, 46B), this forces described first piston element (31) to rotate a little to impel described bayonet socket to connect (300) thereby break away from respect to described second piston element (33) described spring (70) is reduced pressure from described initial compressed state, and then forces described first piston element (31), described needle mount (40) and with syringe needle (12) withdrawal of described needle mount (40) when engaging.
2. plunger as claimed in claim 1, wherein said first piston element has the user action button.
3. plunger as claimed in claim 1, wherein said second piston element comprises the sealing member that is fixed thereon.
4. a retractable syringe (10), comprise plunger (30), syringe (20), spring (70) and have the needle mount (40) of retractable needle (12), described plunger (30) comprises first piston element (31) and second piston element (33), the two connects (300) by bayonet socket and releasably engages, thereby the described spring of collaborative maintenance is in initial compressed state, it is characterized in that, described needle mount (40) is fixed on the needle end (23) of the described syringe (20) that has syringe insertion portion (50), described needle mount (40) comprises main body (41), this main body (41) has plug engages device (44A, 44B), described first piston element (31) further comprises the device (340) that is used to engage needle mount (40), this device (340) that is used to engage needle mount (40) comprises two opposed arm (341A with barb, 341B), described arm with barb (341A, 341B) have the inclination edge (343A, 343B); Described plug engages device (44A, 44B) comprise with described inclination edge (343A, 343B) inclined-plane of respective complementary (46A, 46B); Thereby when described needle mount (40) when described syringe insertion portion (50) breaks away from, described opposed arm (341A with barb, barb (342A 342B), 342B) respectively with the plug engages device (44A of described needle mount (40), 44B) engage so that depress described plunger (30) with the liquid contents of carrying described syringe (10) after, described needle mount (40) and described syringe needle (12) can be withdrawn, whereby between described first piston element (31) and described needle mount (40) joint aging time, described inclination edge (343A, 343B) lean against described respective complementary inclined-plane (46A respectively, 46B), this forces described first piston element (31) to rotate a little to impel described bayonet socket to connect (300) thereby break away from respect to described second piston element (33) described spring (70) is reduced pressure from described initial compressed state, and then forces described first piston element (31), described needle mount (40) and with syringe needle (12) withdrawal of described needle mount (40) when engaging.
5. retractable syringe as claimed in claim 4, wherein said first piston element has the user action button.
6. retractable syringe as claimed in claim 4, wherein said second piston element comprises the sealing member that is fixed thereon.
7. retractable syringe as claimed in claim 4, wherein said retractable syringe further comprises the neck ring that is fixed on the described syringe.
8. retractable syringe as claimed in claim 7, wherein said neck ring comprises one or more outthrust, they can be cooperated with one or more abutments of described first piston element to form the plunger disabling device, and this plunger disabling device can prevent described first piston element depressing and/or withdrawing from after described needle mount withdrawal.
9. retractable syringe as claimed in claim 8, wherein said one or more outthrust engages with respective step on described first piston element with the form of two ratchets, thereby collaborative preventing depressed described first piston element after described needle mount withdrawal, and then prevents to reuse syringe.
10. retractable syringe as claimed in claim 8, wherein said one or more outthrust engages with respective flanges on described first piston element with the form of two ribs, thereby collaborative preventing withdrawed from described first piston element after described needle mount withdrawal, and then prevents to reuse syringe.
11. syringe as claimed in claim 6, after described first piston element, described needle mount and syringe needle withdrawal, described second piston element and described sealing member remain on the needle end of described syringe, thereby prevent the filling once more and the use of syringe.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2004900362A AU2004900362A0 (en) | 2004-01-28 | Retractable syringe and plunger therefor | |
| AU2004900362 | 2004-01-28 | ||
| AU2004906116A AU2004906116A0 (en) | 2004-10-22 | Retractable syringe with plunger disabling system | |
| AU2004906116 | 2004-10-22 | ||
| US63862304P | 2004-12-22 | 2004-12-22 | |
| US60/638,623 | 2004-12-22 | ||
| PCT/AU2005/000107 WO2005072801A1 (en) | 2004-01-28 | 2005-01-28 | Retractable syringe with plunger disabling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1929887A CN1929887A (en) | 2007-03-14 |
| CN1929887B true CN1929887B (en) | 2011-01-26 |
Family
ID=37859477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005800081597A Expired - Fee Related CN1929887B (en) | 2004-01-28 | 2005-01-28 | Retractable syringe with plunger disabling system |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN1929887B (en) |
| DK (1) | DK1708772T3 (en) |
| ES (1) | ES2389657T3 (en) |
| MY (1) | MY147055A (en) |
| PT (1) | PT1708772E (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2529621B (en) | 2014-08-21 | 2016-12-07 | Owen Mumford Ltd | Safety syringe |
| FR3038518A1 (en) * | 2015-07-08 | 2017-01-13 | Guerbet Sa | SYRINGE AND METHOD OF ASSEMBLING |
| CN105031772B (en) * | 2015-08-19 | 2018-11-27 | 江西丰临医疗科技股份有限公司 | Single-use auto-disable syringe |
| CN110382024A (en) * | 2016-12-06 | 2019-10-25 | 注射科技股份有限公司 | For with the method and apparatus of retractable needles filling syringe |
| US10881809B2 (en) * | 2017-08-22 | 2021-01-05 | KB Medical, LLC | Exostructure to assist in accurate syringe injection |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5211628A (en) * | 1991-09-30 | 1993-05-18 | Marshall John M | Syringe with automatic retracting needle |
| US5328476A (en) * | 1993-08-23 | 1994-07-12 | Bidwell James K | One-time use hypodermic syringe apparatus and operation thereof |
| CN2499049Y (en) * | 2001-07-11 | 2002-07-10 | 祁淼 | Disposable syringe |
| US6585702B1 (en) * | 1999-10-07 | 2003-07-01 | Sanofi-Synthelabo | Single-use device for injection |
-
2005
- 2005-01-28 ES ES05700138T patent/ES2389657T3/en active Active
- 2005-01-28 DK DK05700138.0T patent/DK1708772T3/en active
- 2005-01-28 MY MYPI20050357A patent/MY147055A/en unknown
- 2005-01-28 PT PT05700138T patent/PT1708772E/en unknown
- 2005-01-28 CN CN2005800081597A patent/CN1929887B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5211628A (en) * | 1991-09-30 | 1993-05-18 | Marshall John M | Syringe with automatic retracting needle |
| US5328476A (en) * | 1993-08-23 | 1994-07-12 | Bidwell James K | One-time use hypodermic syringe apparatus and operation thereof |
| US6585702B1 (en) * | 1999-10-07 | 2003-07-01 | Sanofi-Synthelabo | Single-use device for injection |
| CN2499049Y (en) * | 2001-07-11 | 2002-07-10 | 祁淼 | Disposable syringe |
Also Published As
| Publication number | Publication date |
|---|---|
| MY147055A (en) | 2012-10-15 |
| ES2389657T3 (en) | 2012-10-30 |
| PT1708772E (en) | 2012-08-08 |
| CN1929887A (en) | 2007-03-14 |
| DK1708772T3 (en) | 2012-09-10 |
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