CN203694264U - Safety syringe - Google Patents
Safety syringe Download PDFInfo
- Publication number
- CN203694264U CN203694264U CN201420046396.9U CN201420046396U CN203694264U CN 203694264 U CN203694264 U CN 203694264U CN 201420046396 U CN201420046396 U CN 201420046396U CN 203694264 U CN203694264 U CN 203694264U
- Authority
- CN
- China
- Prior art keywords
- syringe
- needle stand
- needle
- wall
- core 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
- 238000007789 sealing Methods 0.000 claims abstract description 48
- 239000007788 liquid Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000001746 injection moulding Methods 0.000 abstract 2
- 238000004080 punching Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 18
- 239000007924 injection Substances 0.000 description 18
- 210000000078 claw Anatomy 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 206010011409 Cross infection Diseases 0.000 description 2
- 206010029803 Nosocomial infection Diseases 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- NOESYZHRGYRDHS-UHFFFAOYSA-N insulin Chemical compound N1C(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(NC(=O)CN)C(C)CC)CSSCC(C(NC(CO)C(=O)NC(CC(C)C)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CCC(N)=O)C(=O)NC(CC(C)C)C(=O)NC(CCC(O)=O)C(=O)NC(CC(N)=O)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CSSCC(NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2C=CC(O)=CC=2)NC(=O)C(CC(C)C)NC(=O)C(C)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2NC=NC=2)NC(=O)C(CO)NC(=O)CNC2=O)C(=O)NCC(=O)NC(CCC(O)=O)C(=O)NC(CCCNC(N)=N)C(=O)NCC(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC(O)=CC=3)C(=O)NC(C(C)O)C(=O)N3C(CCC3)C(=O)NC(CCCCN)C(=O)NC(C)C(O)=O)C(=O)NC(CC(N)=O)C(O)=O)=O)NC(=O)C(C(C)CC)NC(=O)C(CO)NC(=O)C(C(C)O)NC(=O)C1CSSCC2NC(=O)C(CC(C)C)NC(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CC(N)=O)NC(=O)C(NC(=O)C(N)CC=1C=CC=CC=1)C(C)C)CC1=CN=CN1 NOESYZHRGYRDHS-UHFFFAOYSA-N 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 1
- 102000004877 Insulin Human genes 0.000 description 1
- 108090001061 Insulin Proteins 0.000 description 1
- 208000036142 Viral infection Diseases 0.000 description 1
- 240000008866 Ziziphus nummularia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940125396 insulin Drugs 0.000 description 1
- 239000002906 medical waste Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000009385 viral infection Effects 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a safety syringe. The safety syringe comprises a core rod, a needle holder, a needle tubing and a needle cap, wherein the core rod is located in a needle cylinder, the needle holder is connected with the needle cylinder, the needle tubing is fixed on the needle holder, the needle cap is arranged on the needle holder, and the needle tubing is covered with the needle cap. The core rod is provided with a core rod fold. A rubber plug and a protruding clamping table are arranged at the front end, located in the needle cylinder, of the core rod. An elastic buckle is arranged on the inner side of the needle holder. The inner wall of the front end of the needle cylinder makes linear contact with and is in sealed connection with the outer wall of the needle holder. According to the safety syringe, the structure that a seal ring is arranged on the inner wall, making contact with the needle holder, of the needle cylinder or the outer wall, making contact with the inner wall of the needle cylinder, of the needle holder in an injection moulding mode is adopted, so that linear contact seal between the needle cylinder and the needle holder is achieved, the sealing effect is good, the requirement for the accuracy of injection moulding parts is not high, and the structure is simple; besides, in the pulling back process, only the resistance between the seal ring and the contact surface needs to be overcome, the resistance is small on the basis of meeting the requirement for clinic needle-punching force resistance, and therefore the safety syringe is suitable for being produced and popularized on a large scale.
Description
Technical field
This utility model relates to medical instruments field, is specially a kind of self-destroy safety injector.
Background technology
Along with the continuous progress and development of society, the especially development of medical and health care system, especially for people's health provides good guarantee.Syringe is as conventional disposable use medical infusion utensil, its safety and effectiveness are more and more valued by the people, be that reused Luer's syringe is all replaced by present disposable syringe through sterilization in the past, embody the developmental huge advance made of medical apparatus and instruments tool, greatly reduce the incidence rate of cross infection, have irreplaceable effect.
Syringe when for treatment, disease plays positive role, also have because syringe recycle or used disposable syringe dealt with improperly the generation that causes disease of viral infection.Because the disposable syringe that in life, people often see now, structurally conventionally formed by parts such as syringe, entry needle, core bar, plugs, this syringe from literal be disposable use, in fact can not ensure disposable use truly, and after using, still have the problem of potential safety hazard, be mainly manifested in: one, after injector to inject, Product Status is good, stay as saving cost reuses chance is provided, be not real disposable possibility so have; Its two, injected rear needle point Naked and exposed outside, not only easily accidental puncture medical worker and medical waste treatment people, brings the used syringe of new cross infection, particularly patients with infectious diseases, brings larger risk and potential safety hazard especially to innocent person.
For fear of the secondary use of syringe and accidental puncture people's problem, on market, there is being designed with the shackle member engaging with syringe on injector push-rod, after injection, push rod engages with syringe, makes push-rod lock in syringe, has prevented the object that secondary uses.But this class syringe at drawing liquid secondary piston front end not on zero graduation line, therefore in drawing liquid process, can cause drawing liquid dosage inaccurate on the one hand, residual more air before using after the opposing party's drawing liquid in injector syringe, due to the push rod head of this class syringe, to exceed plug more, can produce at plug top that bubble is difficult discharges in the time of drawing liquid.Especially require more accurate syringe as this class dosage of insulin syringe, and bubble discharge can be difficult, has injection residual in addition after this class injector to inject, can not reach the standard of low-residual.
In view of the defect of above-mentioned technology, people can make syringe needle be contracted in injection tube and the self-destruction syringe of low-residual by improving structure, having designed.As the publication number open source literature that is CN101444649A, comprise hollow barrel, the push rod sliding in syringe, is arranged on the plug of push rod front end, and the front end of syringe is provided with needle stand, needle stand is supported by bracing frame, supporting seat inner side is provided with elastic card claw, and push rod front end is provided with frustum engage with elastic card claw after injection, while injection described at the bottom of the cone of frustum and the butt of plug top, plug is hollow type, and push rod is provided with the block of pushing and pressing plug; When injection, plug is subject to the thrust compression of counteracting force and the block of injection products, and now the frustum of push rod front end is along axially the protracting of push rod, and after injection, frustum engages with elastic card claw.Although above-mentioned document has played certain positive role, but the elastic card claw of the syringe of this class formation is arranged on supporting seat inner side, after injection, push rod likely only retracts supporting seat in syringe, needle stand and syringe needle are retained in injection tube front end, and staff can be by needle sting in the time processing this lower wasted syringes; Moreover, the elastic card claw being arranged in supporting seat is uniformly distributed and is positioned on same working face, the frustum of push rod front end is pushed in supporting seat and is engaged with elastic card claw, enter at the frustum of push rod front end the moment engaging in supporting seat and with elastic card claw, because the pressure that is injected into patient body inner liquid medicine changes suddenly, can make patient move very pain.
Publication number is that the document of CN10186249A discloses a kind of self-destroy safety injector, comprise injection tube, injection rod, rubber stopper and be needle holder cylindraceous, rubber stopper is fixedly connected on the front portion of injection rod, the bar head of injection rod has keeper, needle holder is connected to the front end inner side of syringe, and needle holder inwall is provided with convex body.Although above-mentioned patent documentation has overcome from technical standpoint the deficiency that publication number is CN101444649A, solve syringe patient when to patient infusion and felt the very problem of pain, but interference fit inside the outside of its technical requirement needle holder one end and the front end of injection tube, frictional force between the two, just greater than the pressure producing in injection process, snaps fit onto power when needle holder is interior retracts needle holder but be less than keeper.Although design has simply overcome pain like this, during due to needle stand and syringe assembling, carry out combination by face and face completely, need to be very high to the technological requirement precision of syringe and needle stand moulding junction, cause like this and in production, have certain difficulty, if contact surface is jagged or other defect, can leakage easily occur in injection process, percent defective increases; They are two years old, if face contact completely coordinates defective tightness, also may have leakage may with may make needle stand rollback slightly backward thrusting skin moment, shift onto can pull back state time and can make needle stand slightly forward when pushing away core bar, so also can bring secondary pain to patient; Its three, when needle stand contact with syringe face closely good, the larger friction of generation in the time that pull back needle stand and needle tubing together arrive syringe, bad rollback.
Publication number is that CN1252311A patent discloses a kind of safety injector, its structure comprises pin lid, syringe, needle stand, piston, push rod and syringe needle, be fixed on needle stand by the described syringe needle of its file, needle stand is set in the top end of syringe, push rod is inserted in syringe, push rod leading portion forms cervical region, the flexible hook of pulling in cervical region top, coordinate needle stand is retracted in syringe with the sour jujube of pulling of needle stand tail end inner edge arcuation, although this design has solved the problem that pin is surprisingly stabbed people, but syringe and needle stand are also contacting by face and face, equally also have the shortcoming of publication number for producing in CN10186249A document.
In order to overcome the deficiency of leakage and bad rollback in above-mentioned technology, on market existing utility model a kind of self-destroyed syringe by sealing device contact, on needle stand, put exactly a silica gel ring, effectively improve leakage and the unexpected problem of stabbing people of preventing, but still there is following problem, it shows: on needle stand, put silica gel ring, although good seal, but silica gel ring assembling difficulty, in production, also increased operation, useless work is consuming time, and production efficiency reduces, increase cost simultaneously, be not suitable for a large amount of production.
Therefore, providing a kind of both simple in structure, with low cost, easy to operate, be applicable to a large amount of production and the high self-destroyed syringe of safety coefficient, has been a problem of needing solution badly.
Utility model content
In order to overcome above-mentioned deficiency of the prior art, it is a kind of simple in structure that this utility model provides, and sealing effectiveness is good, easy for operation, and the required precision for moulding is not high, can mass production, and be widely used in the self-destroy safety injector of clinical field.
The purpose of this utility model is achieved in that
Safety injector, comprises syringe 2, is positioned at the core bar 1 of syringe 2, and the needle stand 7 being connected with syringe 2 is fixed on the needle tubing 8 on needle stand 7, and is arranged on the pin lid 9 for inner cover needle tubing 8 on needle stand 7; On described core bar 1, be provided with core bar folding line 3, the front end that is positioned at the core bar 1 of syringe 2 is provided with plug 4 and projection card platform 5, and the inner side of needle stand 7 is provided with Elastic buckle 6, and is arranged on the window 11 of setting corresponding to Elastic buckle 6 on needle stand 7; Described syringe 2 front inner wall are that line contact sealing is connected with the outer wall of needle stand;
Described Elastic buckle 6 is for to be interspersed along needle stand 7 axial directions;
Described Elastic buckle 6 is symmetrical along needle stand 7 axial directions;
Described syringe 2 front inner wall are that line contact sealing is connected with the outer wall of needle stand 7, on the inwall that syringe 2 contacts with needle stand 7 outer walls, are injected with sealing ring 10; The height of described sealing ring 10 protrudes from the surface of the inwall of its place syringe 2;
Described syringe 2 front inner wall are that line contact sealing is connected with the outer wall of needle stand 7, on needle stand 7 outer walls, are injected with sealing ring 10, and the height of described sealing ring 10 protrudes from the surface of the outer wall of its place needle stand 7;
In the front inner wall of described syringe 2, be provided with anti-needle stand and release snap ring 12, anti-needle stand is released snap ring 12 and is positioned on the inwall that syringe liquid pushed away the syringe 2 that rear needle stand 7 locates foremost completely.
actively beneficial effect:this utility model adopts the structure that is injected with sealing ring on the inwall contacting with needle stand at syringe; and the height of sealing ring is higher than the surface of the inwall of its place syringe; realize the line contact sealing of syringe and needle stand; sealing effectiveness is good; and for moulding precision otherwise height, and simple in structure, in the time pulling back, only need to overcome the resistance of sealing ring and contact surface; on the basis of requirement that meets clinical anti-pinprick power, resistance is less, is suitable for large-scale production and popularization.
Brief description of the drawings
Fig. 1 is structural representation one of the present utility model;
Fig. 2 is a place structure for amplifying schematic diagram in Fig. 1;
Fig. 3 is needle stand structure schematic diagram one;
Fig. 4 is syringe cylinder structure schematic diagram;
Fig. 5 is b place structure enlarged diagram in Fig. 4;
Fig. 6 is core bar structure schematic diagram;
Fig. 7 is that core bar advances needle stand inner structure schematic diagram;
Fig. 8 is structural representation two of the present utility model;
Fig. 9 is structural representation three of the present utility model;
Figure 10 is the structural representation two of needle stand;
In figure, be: core bar 1, syringe 2, core bar folding line 3, plug 4, projection card platform 5, Elastic buckle 6, needle stand 7, needle tubing 8, pin lid 9, sealing ring 10, window 11, anti-needle stand are released snap ring 12.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, this utility model is described further:
As shown in Figure 1, Figure 2, Figure 6 shows, safety injector, comprises syringe 2, is positioned at the core bar 1 of syringe 2, and the needle stand 7 being connected with syringe 2 is fixed on the needle tubing 8 on needle stand 7, and is arranged on needle stand 7, for the pin lid 9 of inner cover needle tubing 8; On described core bar 1, be provided with core bar folding line 3, the front end that is positioned at the core bar 1 of syringe 2 is provided with plug 4 and projection card platform 5, the inner side of needle stand 7 is provided with Elastic buckle 6, and is arranged on the window 11 of setting corresponding to Elastic buckle 6 on needle stand 7, as shown in figure 10; Described syringe 2 front inner wall are that line contact sealing is connected with the outer wall of needle stand;
Described Elastic buckle 6 is for to be interspersed along needle stand 7 axial directions;
As shown in Figure 3, described Elastic buckle 6 is symmetrical along needle stand 7 axial directions;
As shown in Figure 4, Figure 5, described syringe 2 front inner wall are that line contact sealing is connected with the outer wall of needle stand 7, on the inwall that syringe 2 contacts with needle stand 7 outer walls, are injected with sealing ring 10; The height of described sealing ring 10 protrudes from the surface of the inwall of its place syringe 2.
Described syringe 2 front inner wall are that line contact sealing is connected with the outer wall of needle stand 7, on needle stand 7 outer walls, are injected with sealing ring 10, and the height of described sealing ring 10 protrudes from the surface of the outer wall of its place needle stand 7.
As shown in Figure 1 and Figure 2, be provided with anti-needle stand and release snap ring 12 in the front inner wall of described syringe 2, anti-needle stand is released snap ring 12 and is positioned on the inwall that syringe liquid pushed away the syringe 2 that rear needle stand 7 locates foremost completely.
embodiment 1
Safety injector, comprises syringe 2, is positioned at the core bar 1 of syringe 2, and the needle stand 7 being connected with syringe 2 is fixed on the needle tubing 8 on needle stand 7, and is arranged on needle stand 7, for the pin lid 9 of inner cover needle tubing 8; On described core bar 1, be provided with core bar folding line 3, the front end that is positioned at the core bar 1 of syringe 2 is provided with plug 4 and projection card platform 5, and the inner side of needle stand 7 is provided with Elastic buckle 6, and is arranged on the window 11 of setting corresponding to Elastic buckle 6 on needle stand 7; Described Elastic buckle 6 is for to be interspersed along needle stand 7 axial directions; In the front inner wall of described syringe 2, be provided with anti-needle stand and release snap ring 12, anti-needle stand is released snap ring 12 and is positioned on the inwall that syringe liquid pushed away the syringe 2 that rear needle stand 7 locates foremost completely; Described syringe 2 front inner wall are that line contact sealing is connected with the outer wall of needle stand 7; On the inwall that syringe 2 contacts with needle stand 7 outer walls, be injected with sealing ring 10; The height of described sealing ring 10 protrudes from the surface of the inwall of its place syringe 2.
embodiment 2
Safety injector, comprises syringe 2, is positioned at the core bar 1 of syringe 2, and the needle stand 7 being connected with syringe 2 is fixed on the needle tubing 8 on needle stand 7, and is arranged on needle stand 7, for the pin lid 9 of inner cover needle tubing 8; On described core bar 1, be provided with core bar folding line 3, the front end that is positioned at the core bar 1 of syringe 2 is provided with plug 4 and projection card platform 5, and the inner side of needle stand 7 is provided with Elastic buckle 6, and is arranged on the window 11 of setting corresponding to Elastic buckle 6 on needle stand 7; Described Elastic buckle 6 is for to be interspersed along needle stand 7 axial directions; In the front inner wall of described syringe 2, be provided with anti-needle stand and release snap ring 12, anti-needle stand is released snap ring 12 and is positioned on the inwall that syringe liquid pushed away the syringe 2 that rear needle stand 7 locates foremost completely; Described syringe 2 front inner wall are that line contact sealing is connected with the outer wall of needle stand 7, on needle stand 7 outer walls, are injected with sealing ring 10, and the height of described sealing ring 10 protrudes from the surface of the outer wall of its place needle stand 7.
embodiment 3
Safety injector, comprises syringe 2, is positioned at the core bar 1 of syringe 2, and the needle stand 7 being connected with syringe 2 is fixed on the needle tubing 8 on needle stand 7, and is arranged on needle stand 7, for the pin lid 9 of inner cover needle tubing 8; On described core bar 1, be provided with core bar folding line 3, the front end that is positioned at the core bar 1 of syringe 2 is provided with plug 4 and projection card platform 5, and the inner side of needle stand 7 is provided with Elastic buckle 6, and is arranged on the window 11 of setting corresponding to Elastic buckle 6 on needle stand 7; Described Elastic buckle 6 is symmetrical along needle stand 7 axial directions; In the front inner wall of described syringe 2, be provided with anti-needle stand and release snap ring 12, anti-needle stand is released snap ring 12 and is positioned on the inwall that syringe liquid pushed away the syringe 2 that rear needle stand 7 locates foremost completely; Described syringe 2 front inner wall are that line contact sealing is connected with the outer wall of needle stand 7; On the inwall that syringe 2 contacts with needle stand 7 outer walls, be injected with sealing ring 10; The height of described sealing ring 10 protrudes from the surface of the inwall of its place syringe 2.
embodiment 4
Safety injector, comprises syringe 2, is positioned at the core bar 1 of syringe 2, and the needle stand 7 being connected with syringe 2 is fixed on the needle tubing 8 on needle stand 7, and is arranged on needle stand 7, for the pin lid 9 of inner cover needle tubing 8; On described core bar 1, be provided with core bar folding line 3, the front end that is positioned at the core bar 1 of syringe 2 is provided with plug 4 and projection card platform 5, and the inner side of needle stand 7 is provided with Elastic buckle 6, and is arranged on the window 11 of setting corresponding to Elastic buckle 6 on needle stand 7; Described Elastic buckle 6 is symmetrical along needle stand 7 axial directions; In the front inner wall of described syringe 2, be provided with anti-needle stand and release snap ring 12, anti-needle stand is released snap ring 12 and is positioned on the inwall that syringe liquid pushed away the syringe 2 that rear needle stand 7 locates foremost completely; Described syringe 2 front inner wall are that line contact sealing is connected with the outer wall of needle stand 7, on needle stand 7 outer walls, are injected with sealing ring 10, and the height of described sealing ring 10 protrudes from the surface of the outer wall of its place needle stand 7.
When use, remove pin lid 9, promote core bar 1 to moving near needle stand 7 directions, under the effect of thrust, the liquid that piston promotes in syringe moves forward, the projection card platform 5 that is arranged on core bar 1 front end is to Elastic buckle 6 application of forces in needle stand 7, in the time that motive force is greater than the resistance of Elastic buckle 6, Elastic buckle 6 is to the interior contraction of window 11 arranging on needle stand 7, projection card platform 5 is by Elastic buckle 6, and now Elastic buckle 6 resilience under the left and right of elastic force, blocks platform 5 by projection and be stuck in needle stand 7, realize being connected between needle stand 7 and core bar 1, as shown in Figure 7; In the time that needs are returned, the core bar 1 of firmly pulling back, because needle stand 7 and syringe are to be tightly connected by injection sealing ring 10, connecting line contact connects, the resistance that the core bar 1 of pulling back is produced is less than the resistance that face contact produces, so needle stand 7 easily can be returned as shown in Figure 8 to syringe; When needle stand 7 and be fixed on needle tubing on needle stand 7 and enter into syringe 2 when interior, core bar folding line 3 places of core bar 1 are pulled to syringe collar extension wall place, fracture and complete destruction work, as shown in Figure 9.
This utility model adopts the structure that is injected with sealing ring on the inwall contacting with needle stand at syringe, and the height of sealing ring is higher than the surface of the inwall of its place syringe or the surface of needle stand outer wall, realize the line contact sealing of syringe and needle stand, sealing effectiveness is good, and for moulding precision otherwise height, and simple in structure, in the time pulling back, only need to overcome the resistance of sealing ring and contact surface, on the basis of requirement that meets clinical anti-pinprick power, resistance is less, is suitable for large-scale production and popularization; In the front inner wall of syringe, be provided with anti-needle stand simultaneously and release snap ring, prevent that needle stand from releasing snap ring and being positioned on the inwall that syringe liquid pushed away the syringe that rear needle stand locates foremost completely, the dangerous situation generation that the excessive needle stand causing that prevents from exerting oneself is pushed out.
Above embodiment is only for illustrating preferred implementation of the present utility model; but this utility model is not limited to above-mentioned embodiment; in the ken possessing at described field those of ordinary skill; any amendment of doing within spirit of the present utility model and principle, be equal to and substitute and improvement etc., within it all should be encompassed in the technical scheme scope of this utility model request protection.
Claims (6)
1. safety injector, comprises syringe (2), is positioned at the core bar (1) of syringe (2), the needle stand (7) being connected with syringe (2), be fixed on the needle tubing (8) on needle stand (7), and it is upper to be arranged on needle stand (7), for the pin lid (9) of inner cover needle tubing (8); On described core bar (1), be provided with core bar folding line (3), the front end that is positioned at the core bar (1) of syringe (2) is provided with plug (4) and protruding Ka Tai (5), it is characterized in that: the inner side of needle stand (7) is provided with Elastic buckle (6), and being arranged on the upper window (11) with the corresponding setting of Elastic buckle (6) of needle stand (7), described syringe (2) front inner wall is that line contact sealing is connected with the outer wall of needle stand.
2. safety injector according to claim 1, is characterized in that: described Elastic buckle (6) is for to be interspersed along needle stand (7) axial direction.
3. safety injector according to claim 1, is characterized in that: described Elastic buckle (6) is for symmetrical along needle stand (7) axial direction.
4. safety injector according to claim 1, is characterized in that: described syringe (2) front inner wall is that line contact sealing is connected with the outer wall of needle stand (7), on the inwall that syringe (2) contacts with needle stand (7) outer wall, is injected with sealing ring (10); The height of described sealing ring (10) protrudes from the surface of the inwall of its place syringe (2).
5. safety injector according to claim 1, it is characterized in that: described syringe (2) front inner wall is that line contact sealing is connected with the outer wall of needle stand (7), on needle stand (7) outer wall, be injected with sealing ring (10), the height of described sealing ring (10) protrudes from the surface of the outer wall of its place needle stand (7).
6. safety injector according to claim 1, it is characterized in that: in the front inner wall of described syringe (2), be provided with anti-needle stand and release snap ring (12), anti-needle stand is released snap ring (12) and is positioned on the inwall that syringe liquid pushed away the syringe (2) that rear needle stand (7) locates foremost completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420046396.9U CN203694264U (en) | 2014-01-25 | 2014-01-25 | Safety syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420046396.9U CN203694264U (en) | 2014-01-25 | 2014-01-25 | Safety syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203694264U true CN203694264U (en) | 2014-07-09 |
Family
ID=51044771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420046396.9U Expired - Lifetime CN203694264U (en) | 2014-01-25 | 2014-01-25 | Safety syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203694264U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103721320A (en) * | 2014-01-25 | 2014-04-16 | 圣光医用制品有限公司 | Safe injector |
| CN108815639A (en) * | 2018-05-08 | 2018-11-16 | 河南兴恒医疗用品有限公司 | Disposible safety syringe |
| CN112516420A (en) * | 2019-09-18 | 2021-03-19 | 凯莎包装私人公司 | Device for locking the plunger rod of a syringe after use and preventing reuse of the syringe and syringe assembly |
-
2014
- 2014-01-25 CN CN201420046396.9U patent/CN203694264U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103721320A (en) * | 2014-01-25 | 2014-04-16 | 圣光医用制品有限公司 | Safe injector |
| CN108815639A (en) * | 2018-05-08 | 2018-11-16 | 河南兴恒医疗用品有限公司 | Disposible safety syringe |
| CN112516420A (en) * | 2019-09-18 | 2021-03-19 | 凯莎包装私人公司 | Device for locking the plunger rod of a syringe after use and preventing reuse of the syringe and syringe assembly |
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Address after: 467100. East section of Longshan Road, Chengguan Town, Pingdingshan City, Henan, Jiaxian Patentee after: SHENGGUANG MEDICAL INSTRUMENT CO.,LTD. Address before: 467100. East section of Longshan Road, Chengguan Town, Pingdingshan City, Henan, Jiaxian Patentee before: SHENGGUANG MEDICAL INSTRUMENT Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20140709 |
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| CX01 | Expiry of patent term |