CN202459662U - Secondary separation type safe self-destruction syringe - Google Patents
Secondary separation type safe self-destruction syringe Download PDFInfo
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- CN202459662U CN202459662U CN2012200248639U CN201220024863U CN202459662U CN 202459662 U CN202459662 U CN 202459662U CN 2012200248639 U CN2012200248639 U CN 2012200248639U CN 201220024863 U CN201220024863 U CN 201220024863U CN 202459662 U CN202459662 U CN 202459662U
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- connection block
- overcoat
- syringe
- conehead
- core bar
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Abstract
The utility model discloses a secondary separation type safe self-destruction syringe. By improving the structure, the manufacturing difficulty of a needle retraction type safe self-destruction syringe is reduced, so that the reliability of a product is improved. A needle connecting seat of the syringe consists of a locking conical head and a connecting seat which can be separated along the axial direction; the front part of the locking conical head is connected with a needle, and the rear part of the locking conical head is limited by the connecting seat; the front section of a core rod is matched with the inner cavity of the needle connecting seat, and a clearance is reserved between the core rod and the needle connecting seat; a first destruction structure and a second destruction structure are axially arranged on the front section of the core rod at an interval; the first destruction structure and the second destruction structure respectively correspond to a first non-return structure arranged on the inner wall of the locking conical head and a second non-return structure arranged on the inner wall of the connecting seat to form axial one-way limiting structures; and when the second destruction structure is in contact with the second non-return structure, an interval is formed between the first destruction structure and the first non-return structure, so that the separating force of the product can be effectively controlled, and operation of medical personnel is facilitated. The syringe is high in reliability, convenient to assemble and suitable for batch production.
Description
Technical field
This utility model relates to a kind of syringe, especially a kind of self-destruction syringe.
Background technology
Along with the continuous popularization of safety injection, the self-destruction syringe with self-destroying function has been widely used in clinical.Simple self-destruction syringe is that product uses the back automatically damaging shape, and its effect is to avoid disposable product to be repeated to use.Occlusal pattern self-destroyed syringe for example, in the front end or the rear end of this syringe, be provided with can interlock device.When injection was accomplished, engaging device made push rod and the piston can not pumpback, thereby the pressure self-locking reaches the purpose of self-destruction.
A kind of in addition safe self-breaking syringe is the protection that on simple self-destruction syringe unmakes the function basis, increases medical personnel, reaches to protect medical personnel and other people to avoid the purpose of unexpected injury in the self-destruction process effectively.Needle retraction type self-destroyed syringe for example.Disclosed in December in 2011 21 days; Publication number is China's invention application " a kind of safety self-destructing syringe that has latch-up structure " of CN102284112A, and its overcoat inner chamber is provided with needle holder near upper shed place, and last needle holder one end is provided with needle tubing; The last needle holder other end is connected with following syringe needle Connection Block; Last needle holder is cylindric, and last needle holder outer wall is provided with needle holder ring-type convex tendon, and last needle holder ring-type convex tendon and last needle holder are into a single integrated structure; Cavity wall is provided with the spacing draw-in groove of ring-type that matches with last needle holder ring-type convex tendon in the overcoat; Cavity wall is provided with the spacing ring-type convex tendon of Connection Block near lower opening in the following syringe needle Connection Block, and the core bar end is provided with the circular cone part of pulling back, and circular cone is pulled back the overall diameter of part greater than the interior diameter of the spacing ring-type convex tendon of Connection Block.The product reasonable integral structure can realize that in assembly technology each parts can carry out the assembling of rear portion automatization successively.Be provided with the spring that compresses at its syringe needle or push rod inside, after injection is accomplished, trigger spring and discharge, make in the syringe needle indentation overcoat, protect syringe needle, and can not be used again.
The needle retraction type safe self-breaking syringe becomes main flow gradually owing to more be adapted to produce in batches.The accessory of self-destruction syringe basically all adopts moulding; Owing to the injection moulding precision, on the other hand, the injection mold of batch process all adopts multi-cavity mold on the one hand; The scale error of injection moulding accessory generally can only be controlled at 0.05mm; Stack back error is about 0.10mm, so the separating force magnitude range during the existing product self-destruction is difficult to control, separating force is an important indicator of self-destruction syringe performance; The too little meeting of separating force causes syringe when actual aspiration medicinal liquid or intramuscular injection, to separate, and causes the syringe needle rollback and can not accomplish injection, aspiration medicinal liquid or cause leakage; Separating force too conference causes operator very hard or be difficult to pumpback when the pumpback injector push-rod, can not reach self-destruction.
In addition, the size that needs certain transparency and termination because of syringe is less, has limited the thickness of counterpart wall, thereby has influenced cooperation intensity, and too thick like wall in addition, the rigidity of accessory is bigger, thereby when separating, forms bigger frictional force and separate because of difficulty.
The utility model content
In order to overcome the existing higher deficiency of needle retraction type safe self-breaking syringe manufacture difficulty; This utility model technical problem to be solved provides a kind of through architecture advances reduction needle retraction type safe self-breaking syringe manufacture difficulty, to improve the secondary separate type safe self-breaking syringe of product reliability.
This utility model solves the technical scheme that its technical problem adopted: secondary separate type safe self-breaking syringe; Comprise overcoat, core bar and be positioned at the syringe needle Connection Block of overcoat inner chamber front end; Be provided with axial positioning structure and preceding hermetically-sealed construction between syringe needle Connection Block and the overcoat; Core bar and overcoat sliding connection; Be provided with axial limiting structure and back hermetically-sealed construction between core bar and the overcoat, said syringe needle Connection Block is by can isolating vertically locking conehead forming with Connection Block, and the front portion that locks conehead is connected with syringe needle; The rear portion of locking conehead is spacing by Connection Block; The leading portion of said core bar cooperate with the inner chamber of syringe needle Connection Block and the two between gapped, axially spaced-apart is provided with first structure and second structure of unmaking of unmaking on the leading portion, first unmake structure and second unmake structure respectively with the inwall that is arranged at the locking conehead on first non-return structure and the inwall that is arranged at Connection Block on the axial unidirectional position limiting structure of the corresponding formation of second non-return structure; And unmake structure when contacting with second non-return structure second, first unmakes has between the structure and first non-return structure at interval.
The rear sleeve of said locking conehead is connected on the cylindrical of Connection Block; Be provided with between locking conehead and the Connection Block with Connection Block before locking conehead direction and then radial dilatation and separate and the expansion structure that resets with Connection Block and locking conehead, preceding hermetically-sealed construction is arranged between locking conehead and the overcoat position corresponding to said expansion structure.
The rear portion of said locking conehead is the spacing hole that is provided with inner conical surface, and Connection Block cooperates with said spacing hole and is provided with the male cone (strobilus masculinus) that cooperates with said inner conical surface, and said expansion structure is made up of male cone (strobilus masculinus) and inner conical surface.
Hermetically-sealed construction is made up of with the inner conical sealing surface on the corresponding inwall that is arranged on overcoat the male-tapered sealing surface that is arranged on the locking conehead periphery before said.
The axial positioning structure that is provided with between said syringe needle Connection Block and the overcoat comprise be arranged at the overcoat front end, with the spacing inward flange that contacts of front end face of locking conehead be arranged at the inner groovy on the inwall of overcoat, the rear end periphery of Connection Block is provided with the outer convex rib corresponding with inner groovy.
Said first structure of unmaking is positioned at the front end of core bar.
Said first structure and second structure of unmaking of unmaking is that tapered annular is protruding, and said first non-return structure and second non-return structure are the positioning spigot that is arranged on the respective inner walls.
The back hermetically-sealed construction that is provided with between said core bar and the overcoat is the plug that is socketed in the leading portion of core bar, and the front end of plug is the conical surface, and the inwall of said Connection Block is provided with the mating surface with said cone match.
The beneficial effect of this utility model is: adopt secondary to separate; The bigger frictional force that can produce when separating resolves into successively two parts than less friction; Can control product separation power effectively; Thereby when separating self-destruction, only need to pull back with regard to realizing separating the purpose of self-destruction, make things convenient for medical personnel to operate with less power; Utilize two effects that the inclined-planes cooperation produces lateral expansion power of correspondence position on locking conehead and the Connection Block; Increase the frictional force when separating; Make product in the use that does not have to separate before unmaking, be unlikely the syringe needle rollback and cause to accomplish injection, aspiration medicinal liquid or cause leakage; Structure is easy to assembly, is very suitable for producing in batches.
Description of drawings
Fig. 1 is the decomposing schematic representation of this utility model secondary separate type safe self-breaking syringe.
Fig. 2 is the front view (the local amplification) of locking conehead among Fig. 1.
Fig. 3 is the front view (the local amplification) of Connection Block among Fig. 1.
Fig. 4 is the front view (the local amplification) of overcoat among Fig. 1.
Fig. 5 is the sketch map of another embodiment of this utility model.
Be labeled as among the figure, 1-locks conehead, 2-Connection Block, 3-overcoat, 4-core bar, 5-plug, 6-injection cavity volume; 11-first non-return structure, 12-are bored tube, 13-male-tapered sealing surface, 14-inner conical surface, 15-spacing hole, 21-second non-return structure; The 22-male cone (strobilus masculinus), 23-outer convex rib, 24-mating surface, 30-inward flange, 31-inner conical sealing surface, 32-inner groovy; 33-overcoat inner chamber, inward flange behind the 34-, 40-leading portion, 41-first structure of unmaking, 42-second structure of unmaking, the 51-conical surface.
The syringe needle that do not draw among Fig. 1, syringe needle and core bar do not draw among Fig. 5.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment this utility model is further specified.
Like Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5; The secondary separate type safe self-breaking syringe of this utility model comprises overcoat 3, core bar 4 and is positioned at the syringe needle Connection Block of overcoat inner chamber 33 front ends; Be provided with axial positioning structure and preceding hermetically-sealed construction between syringe needle Connection Block and the overcoat 3; Core bar 4 and overcoat 3 sliding connections; Be provided with axial limiting structure and back hermetically-sealed construction between core bar 4 and the overcoat 3, said syringe needle Connection Block is by forming with Connection Block 2 by isolating vertically locking conehead 1, and the front portion of locking conehead 1 is connected with syringe needle; The rear portion of locking conehead 1 is spacing by Connection Block 2; The leading portion 40 of said core bar 4 cooperate with the inner chamber of syringe needle Connection Block and the two between gapped, on the leading portion 40 axially spaced-apart be provided with first unmake structure 41 and second unmake structure 42, the first unmake structure 41 and second unmake structure 42 respectively with the inwall that is arranged at locking conehead 1 on first non-return structure 11 and the inwall that is arranged at Connection Block 2 on the axial unidirectional position limiting structure of second non-return structure, 21 corresponding formation; And unmake structure 42 when contacting with second non-return structure 21 second, first unmakes has between the structure 41 and first non-return structure 11 at interval.
Obviously; Be realization safety self-destruct purpose in this utility model; Described axial unidirectional position limiting structure should be to allow core bar 4 to slide to the syringe needle direction to stop the reverse slide of core bar 4 simultaneously; So that utilize two structures of unmaking being arranged on the core bar 4 to realize that when separating self-destruction secondarys separate: the injection back pumpback core bar 4 that finishes, second on the core bar 4 structure 42 of unmaking acts on second non-return structure 21 on the Connection Block 2, makes Connection Block 2 separate with overcoat 3 and locking conehead 1 earlier and along with core bar 4 is return in the overcoat inner chamber 33; The completion first order is separated, and unmake and also do not contact with each other between the structure 41 and first non-return structure 11 this moment first; Continuation pumpback along with core bar 4; First of core bar 4 structure 41 of unmaking acts on first non-return structure 11 of locking on the conehead 1, locking conehead 1 is separated and along with core bar 4 is return in the overcoat inner chamber 33 with overcoat 3, the separation of the completion second level; The core bar 4 that fractures is at last accomplished self-destruction.Owing to adopt secondary to separate, the bigger frictional force that can produce when separating resolves into successively two parts can control product separation power effectively than less friction; Thereby when separating self-destruction, only need pull back and just can realize separating the purpose of self-destruction with less power; Make things convenient for medical personnel to operate,, can each wall of syringe guaranteed to do suitably thickly under the satisfactory prerequisite of transparency also because adopt this kind isolating construction; Separating force can suitably strengthen on existing safety self-destructing syringe architecture basics; Thereby reduce needle retraction type safe self-breaking syringe manufacture difficulty, have enough frictional force between each parts when having guaranteed injection simultaneously, ensured carrying out smoothly of injection process; Improved reliability of products; In addition, the front portion of locking conehead can be provided with the standardization awl tube 12 with wildcard syringe needle coupling, and the safe self-breaking syringe that need not resemble also need be provided with the special-purpose syringe needle that adapts to its overall structure.
Like Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5; The same with existing self-destruction syringe; For avoiding syringe needle rollback in the aspiration medicinal liquid process; Be provided with axial positioning structure between syringe needle Connection Block that is connected with syringe needle in this utility model and the overcoat 3; Said axial positioning structure comprise be arranged at overcoat 3 front ends, with the spacing inward flange that contacts 30 of front end face of locking conehead 1 be arranged at the inner groovy 32 on the inwall of overcoat 3, the rear end periphery of Connection Block 2 is provided with the outer convex rib 23 corresponding with inner groovy 32.
Like Fig. 1, Fig. 2, Fig. 4 and shown in Figure 5; For avoiding leakage, be provided with preceding hermetically-sealed construction between syringe needle Connection Block and the overcoat 3, still; Adopt the split-type structural of this utility model when the syringe needle Connection Block after; Obviously, for avoiding leakage, the preceding hermetically-sealed construction between syringe needle Connection Block and the overcoat 3 should be set in place between the locking conehead 1 and overcoat 3 of front end near syringe needle.
Further be; For reducing manufacture difficulty; Like Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4; The rear sleeve of said locking conehead 1 is connected on the cylindrical of Connection Block 2, is provided with between locking conehead 1 and the Connection Block 2 with Connection Block 2 before locking conehead 1 direction and then radial dilatation and separate and the expansion structure that resets with Connection Block 2 and locking conehead 1, said before hermetically-sealed construction be arranged between locking conehead 1 and the overcoat 3 position corresponding to said expansion structure.Expansion structure can make in the injection process locking conehead 1 tightly recline to the inwall of overcoat 3, and the frictional force between the two strengthens, and both can ensure the sealing effectiveness of hermetically-sealed construction before guaranteeing between locking conehead 1 and the overcoat 3; Avoid leakage; Can guarantee again in the use before separating self-destruction that syringe needle can rollback and cause accomplishing injection, simultaneously, in the self-destruction process; Along with the isolating completion of the first order; Expansion structure resets, and when separate the second level, can easily separate between locking conehead 1 and the overcoat 3.In addition, said expansion structure also can adopt the Air sac cover structure that is arranged on the similar plug 5 between Connection Block cylindrical and the locking conehead inwall etc.
Like Fig. 1, Fig. 2 and shown in Figure 3; Be simplified structure; The convenient manufacturing; The rear portion of said locking conehead 1 is the spacing hole 15 that is provided with inner conical surface 14, and Connection Block 2 cooperates with said spacing hole 15 and is provided with the male cone (strobilus masculinus) 22 that cooperates with said inner conical surface 14, and said expansion structure is made up of male cone (strobilus masculinus) 22 and inner conical surface 14.Effect so that cone match produces lateral expansion power increases the frictional force when separating, and product is unmake in the use before not have to separate, and is unlikely the syringe needle rollback and causes accomplishing injection, aspiration medicinal liquid or cause leakage.
Be simplified structure, be convenient to produce in batches, said before hermetically-sealed construction form with the inner conical sealing surface 31 on the corresponding inwall that is arranged on overcoat 3 by the male-tapered sealing surface 13 that is arranged on locking conehead 1 periphery.Obviously, behind location between Connection Block 2 and the overcoat 3, male-tapered sealing surface 13 promptly tightly reclines with inner conical sealing surface 31, realizes sealing.Simultaneously, this structure also is convenient to accomplish easily from overcoat 3 rear ends the assembling of locking conehead 1 and Connection Block 2.
As shown in Figure 1, for shortening the length of whole syringe, said first structure 41 of unmaking should be positioned at the front end of core bar 4.
Like Fig. 1, Fig. 2 and shown in Figure 3, be simplified structure, to be convenient to produce in batches, said first structure 41 and second structure 42 of unmaking of unmaking is protruding for tapered annular, and said first non-return structure 11 and second non-return structure 21 are to be arranged at the positioning spigot on the respective inner walls.What certainly, locking also can be adopted other on conehead 1, Connection Block 2 and the core bar 4 can realize the axially unidirectional spacing position limiting structure that matees.
Like Fig. 1, Fig. 3 and shown in Figure 4; The back hermetically-sealed construction that is provided with between said core bar 4 and the overcoat 3 is the plug 5 that is socketed in the leading portion 40 of core bar 4; Guarantee that injection can not leak from the rear end, the front end of plug 5 is the conical surface 51, and the inwall of said Connection Block 2 is provided with the mating surface 24 that cooperates with the said conical surface 51; The convenient syringe needle Connection Block that in injection process, compresses guarantees carrying out smoothly of injection.
Conventional, causing leakage for avoiding core bar 4 to be drawn out of overcoat 3, the axial limiting structure that is provided with between said core bar 4 and the overcoat 3 is the back inward flange 34 that is arranged on the overcoat 3.
Embodiment one:
Like Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4; The secondary separate type safe self-breaking syringe of this utility model comprises overcoat 3, core bar 4 and by can isolating vertically locking conehead 1 and the syringe needle Connection Block formed of Connection Block 2; The syringe needle Connection Block is positioned at overcoat inner chamber 33 front ends; The front end face of locking conehead 1 is spacing by the inward flange on the overcoat 3 30; The rear portion of locking conehead 1 is spacing by Connection Block 2; Be respectively arranged with the outer convex rib 23 that is complementary and inner groovy 32 on Connection Block 2 and the overcoat 3 as axial positioning structure, the rear portion of locking conehead 1 is the spacing hole 15 that is provided with inner conical surface 14, and Connection Block 2 cooperates with said spacing hole 15 and is provided with the male cone (strobilus masculinus) 22 that cooperates with said inner conical surface 14; Hermetically-sealed construction before forming corresponding to male-tapered sealing surface on locking conehead 1 periphery of inner conical surface 14 positions 13 and the inner conical sealing surface 31 on the corresponding inwall that is arranged on overcoat 3; Be with on the leading portion 40 of core bar 4 plug 5 and with overcoat 3 sliding connections, plug 5 is formed the back hermetically-sealed constructions with overcoat 3, the front end of plug 5 is the conical surface 51; The inwall of Connection Block 2 is provided with the mating surface 24 that cooperates with the said conical surface 51; The leading portion 40 of core bar 4 cooperate with the inner chamber of syringe needle Connection Block and the two between gapped, can store injection between the forward and backward hermetically-sealed construction and limit injection and can only flow out by the forward awl tube 12 of locking conehead 1, awl tins 12 is connected with syringe needle; Axially spaced-apart is provided with first structure 41 and second structure 42 of unmaking of unmaking on the leading portion 40, respectively with the inwall that is arranged at locking conehead 1 on first non-return structure 11 and the inwall that is arranged at Connection Block 2 on the axial unidirectional position limiting structure of second non-return structure, 21 corresponding formation.
Embodiment two:
With reference to Fig. 1; Embodiment two adopts the core bar 4 with embodiment one same structure; As shown in Figure 5; The secondary separate type safe self-breaking syringe of this utility model comprises overcoat 3, core bar 4 and by can isolating vertically locking conehead 1 and the syringe needle Connection Block formed of Connection Block 2, the syringe needle Connection Block be positioned at overcoat inner chamber 33 front ends, and the front end face of locking conehead 1 is spacing by the inward flange on the overcoat 3 30; The rear portion of locking conehead 1 is spacing by Connection Block 2; Be respectively arranged with the outer convex rib 23 that is complementary and inner groovy 32 on Connection Block 2 and the overcoat 3 as axial positioning structure, hermetically-sealed construction before the male-tapered sealing surface 13 on locking conehead 1 periphery is formed with the inner conical sealing surface 31 on the corresponding inwall that is arranged on overcoat 3, be with on the leading portion 40 of core bar 4 plug 5 and with overcoat 3 sliding connections; Plug 5 is formed the back hermetically-sealed construction with overcoat 3; The front end of plug 5 is the conical surface 51, and the inwall of Connection Block 2 is provided with the mating surface 24 that cooperates with the said conical surface 51, the leading portion 40 of core bar 4 cooperate with the inner chamber of syringe needle Connection Block and the two between gapped; Can store injection between the forward and backward hermetically-sealed construction and limit injection and can only flow out by locking conehead 1 forward awl tube 12; Awl tube 12 is connected with syringe needle, and axially spaced-apart is provided with first structure 41 and second structure 42 of unmaking of unmaking on the leading portion 40, respectively be arranged at the inwall that locks conehead 1 on first non-return structure 11 and be arranged at the axial unidirectional position limiting structure of second non-return structure, 21 corresponding formation on the inwall of Connection Block 2.
Claims (8)
1. secondary separate type safe self-breaking syringe; Comprise overcoat (3), core bar (4) and be positioned at the syringe needle Connection Block of overcoat inner chamber (33) front end; Be provided with axial positioning structure and preceding hermetically-sealed construction between syringe needle Connection Block and the overcoat (3); Core bar (4) and overcoat (3) sliding connection; Be provided with axial limiting structure and back hermetically-sealed construction between core bar (4) and the overcoat (3); It is characterized in that: said syringe needle Connection Block by can isolating vertically locking conehead (1) and Connection Block (2) form; The front portion of locking conehead (1) is connected with syringe needle, and the rear portion that locks conehead (1) is spacing by Connection Block (2), the leading portion (40) of said core bar (4) cooperate with the inner chamber of syringe needle Connection Block and the two between gapped; Leading portion (40) is gone up axially spaced-apart and is provided with first structure (41) and second structure (42) of unmaking of unmaking; First unmake structure (41) and second unmake structure (42) respectively with the inwall that is arranged at locking conehead (1) on first non-return structure (11) and the axial unidirectional position limiting structure of the corresponding formation of second non-return structure (21) that is arranged on the inwall of Connection Block (2), and unmake structure (42) and second non-return structure (21) when contacting second, first unmakes has the interval between structure (41) and first non-return structure (11).
2. secondary separate type safe self-breaking syringe as claimed in claim 1; It is characterized in that: the rear sleeve of said locking conehead (1) is connected on the cylindrical of Connection Block (2); Be provided with between locking conehead (1) and the Connection Block (2) with Connection Block (2) before locking conehead (1) direction so that radial dilatation and with Connection Block (2) with lock that conehead (1) separates and the expansion structure that resets, preceding hermetically-sealed construction is arranged on the position that locks between conehead (1) and the overcoat (3) corresponding to said expansion structure.
3. secondary separate type safe self-breaking syringe as claimed in claim 2; It is characterized in that: the rear portion of said locking conehead (1) is for being provided with the spacing hole (15) of inner conical surface (14); Connection Block (2) cooperates with said spacing hole (15) and is provided with the male cone (strobilus masculinus) (22) that cooperates with said inner conical surface (14), and said expansion structure is made up of male cone (strobilus masculinus) (22) and inner conical surface (14).
4. like claim 1,2 or 3 described secondary separate type safe self-breaking syringes, it is characterized in that: the inner conical sealing surface (31) on the inwall that hermetically-sealed construction is arranged on overcoat (3) by the male-tapered sealing surface (13) and the correspondence that are arranged on locking conehead (1) periphery before said is formed.
5. like claim 1,2 or 3 described secondary separate type safe self-breaking syringes; It is characterized in that: the axial positioning structure that is provided with between said syringe needle Connection Block and the overcoat (3) comprise be arranged at overcoat (3) front end, with the spacing inward flange that contacts of front end face (30) that locks conehead (1) be arranged at the inner groovy (32) on the inwall of overcoat (3), the rear end periphery of Connection Block (2) is provided with the outer convex rib (23) corresponding with inner groovy (32).
6. like claim 1,2 or 3 described secondary separate type safe self-breaking syringes, it is characterized in that: said first structure (41) of unmaking is positioned at the front end of core bar (4).
7. like claim 1,2 or 3 described secondary separate type safe self-breaking syringes; It is characterized in that: said first structure (41) and second structure (42) of unmaking of unmaking is protruding for tapered annular, and said first non-return structure (11) and second non-return structure (21) are to be arranged at the positioning spigot on the respective inner walls.
8. like claim 1,2 or 3 described secondary separate type safe self-breaking syringes; It is characterized in that: the back hermetically-sealed construction that is provided with between said core bar (4) and the overcoat (3) is the plug (5) that is socketed in the leading portion (40) of core bar (4); The front end of plug (5) is the conical surface (51), and the inwall of said Connection Block (2) is provided with the mating surface (24) that cooperates with the said conical surface (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200248639U CN202459662U (en) | 2012-01-19 | 2012-01-19 | Secondary separation type safe self-destruction syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200248639U CN202459662U (en) | 2012-01-19 | 2012-01-19 | Secondary separation type safe self-destruction syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202459662U true CN202459662U (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200248639U Expired - Lifetime CN202459662U (en) | 2012-01-19 | 2012-01-19 | Secondary separation type safe self-destruction syringe |
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| Country | Link |
|---|---|
| CN (1) | CN202459662U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553036A (en) * | 2012-01-19 | 2012-07-11 | 陆盘中 | Two-stage separate type safe self-destruction syringe |
-
2012
- 2012-01-19 CN CN2012200248639U patent/CN202459662U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553036A (en) * | 2012-01-19 | 2012-07-11 | 陆盘中 | Two-stage separate type safe self-destruction syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121003 Effective date of abandoning: 20131016 |
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| RGAV | Abandon patent right to avoid regrant |