CN2778297Y - Needle retractable safety syringe - Google Patents
Needle retractable safety syringe Download PDFInfo
- Publication number
- CN2778297Y CN2778297Y CN 200520015936 CN200520015936U CN2778297Y CN 2778297 Y CN2778297 Y CN 2778297Y CN 200520015936 CN200520015936 CN 200520015936 CN 200520015936 U CN200520015936 U CN 200520015936U CN 2778297 Y CN2778297 Y CN 2778297Y
- Authority
- CN
- China
- Prior art keywords
- needle stand
- syringe
- needle
- barrel type
- push bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides a needle retractable safety syringe, comprising a needle (1), a syringe body (2), a barrel type pushing rod (3), a sealing gasket (4), a needle stand (5), a spring (6), an O type sealing ring (7) and a needle stand sheath (8), with the needle (1) fixed in the through hole (13) of the needle stand (5), the spring (6) sheathed with the needle stand (5), and the needle stand (5) installed inside a syringe cannula (10) after being sheathed with the O type sealing ring (7). The inner wall of the syringe body (2) is provided with a circle of flange (11) that supports the O type sealing ring (7) which supports the boss (14) on the needle stand (5). The needle stand sheath (8) is installed on the syringe cannula (10), and the front of the barrel type pushing rod (3) is provided with a locking device and a triggering device (17). Via a simple fastening structure, the needle retractable safety syringe firmly fixes the needle stand on the head of the syringe and it is easy to take off. Also, when the needle stand takes off, the needle stand and the head of the syringe can not move forward and the quantity of the medical liquor left in the syringe can be effectively reduced.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, particularly relates to a kind of disposible safety syringe that can make syringe needle retract syringes inside after injection finishes.
Background technology
Syringe is often to need in the medical field and a large amount of medical apparatus and instruments that uses.If syringe is repeated to use, just be easy to cause the propagation of disease different patients, cause cross infection, jeopardize the public's health.Some collect used depleted disposable syringe, and drop into the medical market once more in order to seek unlawful interests, for huge hidden danger has been buried in the diffusion and the propagation of numerous disease.Simultaneously, the medical worker because syringe needle exposes, may stab medical worker or waste collection personnel after injection finishes, cause disease infection or infection.In order to stop syringe to be repeated to use, it is promptly being damaged after once using voluntarily, really accomplish and disposablely to use, and the accident that the syringe that prevents to be used is stabbed takes place, someone has proposed the technical scheme about the needle retraction type disposable syringe, as ZL01221139.7 China utility model patent, a kind of safety self-destructing disposable syringe that can make syringe needle retract syringes inside after injection finishes has been proposed, this technical scheme is by being fixed on syringe needle in the needle stand that is equipped with spring, be fixed in the head of syringe again by the syringe needle packing ring, when injection finishes, the push rod bottom plug that is fixed on the push rod head will cooperate roof pressure loosening between needle stand and the packing ring, the push rod bottom plug is pressed in the push rod of hollow simultaneously, whole syringe needle rebounds under the effect of spring together with needle stand in the push rod, thereby realize the self-destruction of syringe and avoid reusing, and eliminated because of the injection back syringe needle that finishes and be exposed to the risk that the outside is stabbed accident easily.
Though this technical scheme can realize the syringe needle of syringe and bounce back automatically after injection, but still there is defective in the fixed structure of its needle stand, can not obtain not only firmly but also the fixed effect that is easy to get loose: first, if fixing between syringe needle packing ring and the needle stand is firm inadequately, then the pressure that is produced when counteracting force that is produced in injection process because when firmly syringe needle being penetrated the muscle body easily or injection liquid gets loose needle stand, thereby appears at the defective that needle retractable has just taken place before finishing in injection; Second, if fixing between syringe needle packing ring and the needle stand is too firm, when then occurring in injection again easily and finishing, the push rod bottom plug of push rod head can not will cooperate roof pressure loosening between needle stand and the packing ring, thereby has can not rebound under the effect of spring defective in the push rod of syringe needle.In addition, this technical scheme also exists and when pushing away post bottom plug roof pressure needle stand fixed structure needle stand travelled forward and then make syringe needle further thrust the defective and the residual more defective of medicinal liquid of patient's human body.
Summary of the invention
A purpose of the present utility model is to overcome the above-mentioned defective of prior art, and a kind of needle retractable safety injector that utilizes simple fixed structure that needle stand is fixed on injector head securely and is easy to again it is got loose is provided.Another purpose of the present utility model be to provide a kind of when getting loose needle stand needle stand and syringe needle can further proal needle retractable safety injector and a kind ofly after injection finishes, can reduce the residual needle retractable safety injector of medicinal liquid effectively.
For achieving the above object, this utility model provides a kind of needle retractable safety injector, comprise syringe needle 1, syringe 2, barrel type push bar 3 and be enclosed within the seal gasket 4 of barrel type push bar head, it is characterized in that described safety injector also comprises needle stand 5, spring 6, O RunddichtringO 7, needle stand cover 8; Described syringe 2 forms a shoulder 9 that inwardly shrinks at its far-end, extend outward the sleeve pipe 10 of its diameter from described shoulder 9 again less than syringe 2, described shoulder 9 is provided with a circle flange 11 with the inwall of described sleeve pipe 10 connecting places, and the outer wall of described sleeve pipe 10 is provided with a circle flange or a groove 12; Described needle stand 5 is a tubular body, and there is a through hole 13 centre, and described syringe needle 1 is fixed in the through hole 13 of needle stand 5, and needle stand 5 lower ends have a boss 14; Described O RunddichtringO 7 is nested with the bottom of the boss 14 on needle stand 5; Described needle stand 5 is installed in after being nested with O RunddichtringO 7 in the syringe sleeve pipe 10, and flange 11 is supporting O RunddichtringO 7, and O RunddichtringO 7 is supporting the boss 14 on the needle stand 5, thereby needle stand 5 releasably is fixed in the syringe sleeve pipe 10; Described spring 6 is nested with on needle stand 5, and its lower end is supported on the boss 14 on the needle stand 5; Described needle stand cover 8 has an aft-opening cavity, the external diameter of its internal diameter and syringe sleeve pipe 10 matches, its inwall is provided with groove or the flange 15 that a circle can engage with flange on syringe sleeve pipe 10 outer walls or groove 12, the closed top end of needle stand cover 8 is provided with a through hole 16, needle stand cover 8 is contained on the syringe sleeve pipe 10 that needle stand 5 is installed, syringe needle 1 stretches out from through hole 16, and the closed top end of needle stand cover 8 is with the upper end of the described spring 6 of roof pressure and spring 6 is pressed in advance between the boss 14 of this closed top end and needle stand 5; Described barrel type push bar 3 has a tube chamber that can hold the needle stand 5 that rebounds, the front end of barrel type push bar 3 is provided with locking device and flip flop equipment 17, described locking device is releasably sealing the opening of tube chamber front end, when barrel type push bar 3 is pushed into top, 2 chambeies of syringe, described flip flop equipment 17 fixed structure of the needle stand 5 that forms that can get loose between O RunddichtringO 7 and flange 11 and the boss 14, thus make the rebound tube intracavity of barrel type push bar 3 of needle stand 5.
As improved needle retractable safety injector of the present utility model, it is characterized in that described needle stand cover 8 is after compressing spring 6 in advance, the lower edge face of its closed top end and needle stand 5 vertical upper limb faces are fitted.
As improved needle retractable safety injector of the present utility model, it is characterized in that, described barrel type push bar 3 is provided with the piston 18 of its chamber front opening of sealing, when barrel type push bar 3 is pushed into the tube top, chamber of syringe 2, piston 18 can be taken off by top, the rear end of needle stand 5, the needle stand 5 that is perhaps rebounded hits and takes off, thereby makes needle stand 5 intracavity that rebounds; Described barrel type push bar 3 exposes a tubulose or is the local vertically front end of projection behind suit seal gasket 4, become the flip flop equipment 17 of barrel type push bar 3, when barrel type push bar 3 is pushed into top, 2 chambeies of syringe, described flip flop equipment 17 can promote O RunddichtringO 7 and carry out integral body or local slippage, thereby the fixed structure generation of needle stand 5 is got loose.
As improved needle retractable safety injector of the present utility model, it is characterized in that the tube chamber front opening of described barrel type push bar 3 is used the thin film 19 that one deck is fixed on barrel type push bar 3 front ends instead and sealed; The bottom lower edge of described needle stand 5 is provided with the sharp-pointed structure 20 that can puncture described thin film 19 when needle stand 5 rebounds push rod tube intracavity.
As improved needle retractable safety injector of the present utility model, it is characterized in that the inwall in the tube chamber of described barrel type push bar 3 is provided with the elasticity agnail 21 that the needle stand 5 of an intracavity that can prevent to rebound is deviate from.
As improved needle retractable safety injector of the present utility model, it is characterized in that the bottom in the tube chamber of described barrel type push bar 3 is provided with steam vent 23.
As improved needle retractable safety injector of the present utility model, it is characterized in that, the inwall of described syringe sleeve pipe 10 with O RunddichtringO 7 contacts site above be provided with a circle and can make flip flop equipment 17 that O RunddichtringO 7 is pushed wherein groove 24.
As improved needle retractable safety injector of the present utility model, it is characterized in that described barrel type push bar 3 afterbody outer walls are provided with and can prevent that barrel type push bar 3 is pushed to the vertical screening glass 22 in 2 chambeies of syringe because of maloperation before formal the use.
As improved needle retractable safety injector of the present utility model, it is characterized in that, it is characterized in that, described piston 18 is exposed to outside the tube chamber front opening of barrel type push bar at its front end after the installation, the shape of the shape of its front end and needle stand 5 rear ends matches, and the end face of its front end is provided with groove 25, and barrel type push bar 3 also is provided with the line of rabbet joint 26 that communicates with groove 25 on the barrel of the front end that exposes behind the suit seal gasket 4.
The needle retractable safety injector that this utility model proposed belongs to improvements over the prior art, and wherein all parts of not addressing all adopt the corresponding construction of syringe of the prior art.
The needle retractable safety injector that this utility model proposed compared with prior art, has following substantive distinguishing features and progress:
At first, this utility model is a kind of simple in structure, with low cost, easy for installation and in conjunction with needle stand fixed structure cleverly by proposing, the awkward property problem that should fixedly being easy to again of having solved how needle retractable safety injector fixedly faced aspect the needle stand gets loose, can make needle stand be fixed on injector head securely, even in injection process, syringe needle is firmly penetrated human body it is got loose, simultaneously can after finishing, injection utilize flip flop equipment easily it to be got loose again, to realize the self-destruction and the safe effect of needle retractable;
Secondly, the safety injector that this utility model proposed has been eliminated the hidden danger that needle stand travels forward easily and then stabs the patient effectively in being released process;
Once more, the safety injector that this utility model proposed can also reduce residual medicinal liquid effectively after injection finishes.
Description of drawings
Fig. 1 is the structural representation of the needle retractable safety injector that the utility model proposes;
Fig. 2 is the partial schematic diagram of Fig. 1;
Fig. 3 is a needle stand nested structure sketch map;
Fig. 4 is the needle stand structural representation;
Fig. 5 is the barrel type push bar sketch map that has thin film;
Fig. 6 is the needle stand sketch map that has sharp-pointed structure;
Fig. 7 has the piston of the groove and the line of rabbet joint and the sketch map of barrel type push bar front end.
The specific embodiment
Describe embodiments of the invention in detail below in conjunction with accompanying drawing.
Embodiment one: as Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 7, needle retractable safety injector in the present embodiment comprises syringe needle 1, syringe 2, barrel type push bar 3 and is enclosed within the seal gasket 4 of push rod head, needle stand 5, spring 6, O RunddichtringO 7, needle stand cover 8;
Syringe 2 forms a shoulder 9 that inwardly shrinks at its far-end, extends outward the sleeve pipe 10 of its diameter less than syringe 2 from shoulder 9 again, and shoulder 9 is provided with a circle flange 11 with the inwall of sleeve pipe 10 connecting places, and the outer wall of sleeve pipe 10 is provided with a circle flange 12;
O RunddichtringO 7 is nested with the bottom of the boss 14 on needle stand 5;
Spring 6 is nested with on needle stand 5, and its lower end is supported on the boss 14 on the needle stand 5;
Barrel type push bar 3 has a tube chamber that can hold the needle stand 5 that rebounds, the front end of barrel type push bar 3 is provided with flip flop equipment 17 and piston 18, flip flop equipment is a triangular hill that is located on the barrel type push bar front end that is exposed to outside the seal gasket 4, the opening of piston 18 sealing tube chamber front ends, when barrel type push bar 3 is pushed into top, 2 chambeies of syringe, piston 18 is owing to the roof pressure that is subjected to needle stand 5 rear ends gets loose, flip flop equipment 17 carries out local slippage with roof pressure O RunddichtringO 7 simultaneously, thereby the fixed structure of the needle stand 5 that forms of getting loose between O RunddichtringO 7 and flange 11 and the boss 14 makes the rebound tube intracavity of barrel type push bar 3 of needle stand 5 under spring 6 effects;
The inwall in the tube chamber of barrel type push bar 3 is provided with the elasticity agnail 21 that the needle stand 5 of an intracavity that can prevent to rebound is deviate from, when needle stand 5 rebounds a tin intracavity portion, elasticity agnail 21 can flick downwards, needle stand 5 is passed through smoothly, elasticity agnail 21 resets afterwards, deviates from forward with the rebound needle stand 5 of an intracavity of prevention again;
Barrel type push bar 3 afterbody outer walls are provided with screening glass 22, can prevent that barrel type push bar 3 from making syringe generation self-destruction because of maloperation is pushed to top, 2 chambeies of syringe before formal the use;
Under the suitable situation of the diameter of tube chamber diameter and the piston 18 of barrel type push bar 3, can offer steam vent 23 in bottom, tube chamber, be beneficial to the air of expelling tube intracavity when needle stand 5 rebounds a tin chamber, avoid forming the air pressure resistance.
Piston 18 is exposed to outside the tube chamber front opening of barrel type push bar at its front end after the installation, the shape of the shape of its front end and needle stand 5 rear ends matches, and the end face of its front end is provided with groove 25, and barrel type push bar 3 also is provided with the line of rabbet joint 26 that communicates with groove 25 on the barrel of the front end that exposes behind the suit seal gasket 4.In order to realize being communicated with between groove 25 and the line of rabbet joint 26, both can deepen the degree of depth of groove 25, its groove and the line of rabbet joint 26 are joined, also groove 25 can be extended on the sidewall of piston 18 exposed portions serve and then and join with the line of rabbet joint 26.Utilize this structure, can before injection finishes, remaining medicinal liquid be injected away to greatest extent by the line of rabbet joint 26 and groove 25, thereby reduce medicinal liquid remnants effectively.
Embodiment two: as Fig. 5, shown in Figure 6, present embodiment is consistent with embodiment one basic structure, and its difference is:
The locking device of barrel type push bar 3 front ends is a thin film 19;
The bottom lower edge of needle stand 5 is provided with the sharp-pointed structure 20 that can puncture thin film 19 when needle stand 5 rebounds push rod tube intracavity.
Claims (9)
1, a kind of needle retractable safety injector, comprise syringe needle (1), syringe (2), barrel type push bar (3) and be enclosed within the seal gasket (4) of barrel type push bar head, it is characterized in that described safety injector also comprises needle stand (5), spring (6), O RunddichtringO (7), needle stand cover (8); Described syringe (2) forms a shoulder (9) that inwardly shrinks at its far-end, extend outward the sleeve pipe (10) of its diameter from described shoulder (9) again less than syringe (2), described shoulder (9) is provided with a circle flange (11) with the inwall of described sleeve pipe (10) connecting place, and the outer wall of described sleeve pipe (10) is provided with a circle flange or a groove (12); Described needle stand (5) is a tubular body, and there is a through hole (13) centre, and described syringe needle (1) is fixed in the through hole (13) of needle stand (5), and needle stand (5) lower end has a boss (14); Described O RunddichtringO (7) is nested with the bottom of the boss (14) on needle stand (5); Described needle stand (5) is installed in the syringe sleeve pipe (10) after being nested with O RunddichtringO (7), flange (11) is supporting O RunddichtringO (7), O RunddichtringO (7) is supporting the boss (14) on the needle stand (5), thereby needle stand (5) releasably is fixed in the syringe sleeve pipe (10); Described spring (6) is nested with on needle stand (5), and its lower end is supported on the boss (14) on the needle stand (5); Described needle stand cover (8) has an aft-opening cavity, the external diameter of its internal diameter and syringe sleeve pipe (10) matches, its inwall is provided with groove or the flange (15) that a circle can engage with flange on syringe sleeve pipe (10) outer wall or groove (12), the closed top end of needle stand cover (8) is provided with a through hole (16), needle stand cover (8) is contained on the syringe sleeve pipe (10) that needle stand (5) is installed, syringe needle (1) stretches out from through hole (16), and the closed top end of needle stand cover (8) is with the upper end of the described spring of roof pressure (6) and spring (6) is pressed in advance between the boss (14) of this closed top end and needle stand (5); Described barrel type push bar (3) has a tube chamber that can hold the needle stand (5) that rebounds, the front end of barrel type push bar (3) is provided with locking device and flip flop equipment (17), described locking device is releasably sealing the opening of tube chamber front end, when barrel type push bar (3) is pushed into syringe (2) tube top, chamber, described flip flop equipment (17) fixed structure of the needle stand (5) that forms that can get loose between O RunddichtringO (7) and flange (11) and the boss (14), thus make the rebound tube intracavity of barrel type push bar (3) of needle stand (5).
2, safety injector as claimed in claim 1 is characterized in that, described needle stand cover (8) is after compressing spring (6) in advance, and the vertical upper limb face of the lower edge face of its closed top end and needle stand (5) is fitted.
3, safety injector as claimed in claim 1 or 2, it is characterized in that, described barrel type push bar (3) is provided with the piston (18) of its chamber front opening of sealing, when barrel type push bar (3) is pushed into the tube top, chamber of syringe (2), piston (18) can be taken off by top, the rear end of needle stand (5), perhaps the needle stand that is rebounded (5) hits and takes off, thereby makes needle stand (a 5) intracavity that rebounds; Described barrel type push bar (3) exposes a tubulose or is the local vertically front end of projection behind suit seal gasket (4), become the flip flop equipment (17) of barrel type push bar (3), when barrel type push bar (3) is pushed into syringe (2) tube top, chamber, described flip flop equipment (17) can promote O RunddichtringO (7) and carry out integral body or local slippage, thereby the fixed structure generation of needle stand (5) is got loose.
4, safety injector as claimed in claim 3 is characterized in that, the tube chamber front opening of described barrel type push bar (3) is used the thin film (19) that one deck is fixed on barrel type push bar (3) front end instead and sealed; The bottom lower edge of described needle stand (5) is provided with the sharp-pointed structure (20) that punctures described thin film (19) in the time of can rebounding push rod tube intracavity in needle stand (5).
5, safety injector as claimed in claim 3 is characterized in that: the inwall in the tube chamber of described barrel type push bar (3) is provided with the elasticity agnail (21) that the needle stand (5) of an intracavity that can prevent to rebound is deviate from.
6, safety injector as claimed in claim 3 is characterized in that, the bottom in the tube chamber of described barrel type push bar (3) is provided with steam vent (23).
7, safety injector as claimed in claim 3, it is characterized in that the inwall of described syringe sleeve pipe (10) is provided with a circle in the top with O RunddichtringO (7) contact site can make flip flop equipment (17) with O RunddichtringO (7) integral body or the local groove (24) that pushes wherein.
8, safety injector as claimed in claim 3 is characterized in that, described barrel type push bar (3) afterbody outer wall is provided with and can prevents that barrel type push bar (3) is pushed to syringe (2) the tube vertical screening glass in chamber (22) because of maloperation before formal the use.
9, safety injector as claimed in claim 3, it is characterized in that, described piston (18) is exposed to outside the tube chamber front opening of barrel type push bar at its front end after the installation, the shape of the shape of its front end and needle stand (5) rear end matches, and the end face of its front end is provided with groove (25), and barrel type push bar (3) also is provided with the line of rabbet joint (26) that communicates with groove (25) on the barrel of the front end that exposes behind the suit seal gasket (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520015936 CN2778297Y (en) | 2005-04-15 | 2005-04-15 | Needle retractable safety syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520015936 CN2778297Y (en) | 2005-04-15 | 2005-04-15 | Needle retractable safety syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2778297Y true CN2778297Y (en) | 2006-05-10 |
Family
ID=36752385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520015936 Expired - Lifetime CN2778297Y (en) | 2005-04-15 | 2005-04-15 | Needle retractable safety syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2778297Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009135439A1 (en) * | 2008-05-08 | 2009-11-12 | Yang Yuhe | Single-use self-destruction safety syringe without fluid residua |
| CN101284154B (en) * | 2008-05-08 | 2011-08-31 | 杨育和 | Self-destroyed safety syringe |
| WO2014000504A1 (en) * | 2012-06-30 | 2014-01-03 | Cai Genshun | Pneumatic retractable self-destructing injection device |
-
2005
- 2005-04-15 CN CN 200520015936 patent/CN2778297Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009135439A1 (en) * | 2008-05-08 | 2009-11-12 | Yang Yuhe | Single-use self-destruction safety syringe without fluid residua |
| CN101284154B (en) * | 2008-05-08 | 2011-08-31 | 杨育和 | Self-destroyed safety syringe |
| US8147450B2 (en) | 2008-05-08 | 2012-04-03 | Shantou Wealy Medical Instrument Co., Ltd | Disposable self-destruction safety syringe without fluid residua |
| WO2014000504A1 (en) * | 2012-06-30 | 2014-01-03 | Cai Genshun | Pneumatic retractable self-destructing injection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100544784C (en) | The barrel type push bar of needle retraction type syringe and needle retractable controllable type syringe | |
| CN1236829C (en) | Retractable needle assembly for cathether which uses elastomeric member to retract needle | |
| CN100551456C (en) | Disposable syringe | |
| CN101484198A (en) | Breech loaded fixed needle syringe and automatic injection device having the same | |
| AU2009243972B2 (en) | Single-use self-destruction safety syringe without fluid residua | |
| CN1319024A (en) | Injection-assisting probe for medical injector assembly | |
| CN1607015A (en) | Single-use safety syringe | |
| CN2778297Y (en) | Needle retractable safety syringe | |
| CN101020090B (en) | Improved safety syringe with withdraw needle and its cylindrical push rod | |
| CN2792518Y (en) | Cylindrical rod for recession needle safety syringe and controllable safety syringe with recession needle | |
| CN201939825U (en) | Automatically-retractive safe injector | |
| CN2892119Y (en) | Exchangeable needle head structure for needle revertive back type injector and needle head revertive back type injector | |
| CN203694264U (en) | Safety syringe | |
| CN202777325U (en) | Retractable self-destruction syringe | |
| CN2668144Y (en) | Disposable safety syringe | |
| CN103721320A (en) | Safe injector | |
| CN100408120C (en) | Changeable needle structure of needle retraction type injector, and said injector | |
| CN205569507U (en) | Automatic injection device of radiopharmaceutical | |
| CN219721537U (en) | Vaccine syringe | |
| CN220025778U (en) | Pre-punching type puncture-preventing zero-pollution flushing syringe | |
| CN201208437Y (en) | Improved barrel type push rod for needle head retraction safe syringe and syringe | |
| CN2889323Y (en) | Safety medical syringe with needle automatically retraction | |
| CN201040117Y (en) | Modified needle whip-back type safety syringe barrel type push rod and safety syringe | |
| CN2693264Y (en) | Disposable safety self damaging syringe | |
| CN113368342B (en) | Disposable low-residue anti-needling safety syringe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150415 Granted publication date: 20060510 |