CN2764417Y - Safe syringe - Google Patents
Safe syringe Download PDFInfo
- Publication number
- CN2764417Y CN2764417Y CN 200420122277 CN200420122277U CN2764417Y CN 2764417 Y CN2764417 Y CN 2764417Y CN 200420122277 CN200420122277 CN 200420122277 CN 200420122277 U CN200420122277 U CN 200420122277U CN 2764417 Y CN2764417 Y CN 2764417Y
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- CN
- China
- Prior art keywords
- linking part
- destroy
- push rod
- safety injector
- syringe
- 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 - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a safety syringe which comprises a needle cylinder, a needle seat, a push rod, a breakable structure and a sealing plug, wherein the front end of the needle cylinder is provided with a joint seat. The needle seat is positioned inside the joint seat. The back end of the needle seat is provided with a first linking part. The front end of the push rod is provided with a second linking part. The breakable structure is arranged at the front end of the push rod. The sealing plug is sheathed on the breakable structure. The sealing plug is matched with the inner wall of the needle cylinder, and is glidingly arranged inside the needle cylinder. Before the breakable structure is broken, the second linking part of the push rod can not be combined with the first linking part of the needle seat. When the breakable structure uses proper outer force to be broken, the second linking part is penetrated through the sealing plug to combine with the first linking part. The safety syringe can ensure that careless action can not lead the safety syringe to lose the function of injecting liquid medicine before use. The push rod and the needle seat of the safety syringe can not be combined into an integral body because of careless action to cause the syringe to lose the function of injecting liquid medicine before use, and the waste of resources can be caused.
Description
Technical field
This utility model relates to a kind of medical apparatus, refers to a kind of safety injector especially.
Background technology
Syringe is the essential medical apparatus of hospital.In the past, the structure of syringe only designed in order to the function of injection medicinal liquid in sufferer based on it, and reckoned without the inherently safe problem of medical personnel when the sufferer injection medicinal liquid, also reckoned without used syringe and was easy to be reused problem undeservedly.In case the needle tubing on the syringe that medical personnel were used accidentally stabs, can cause it by the serious consequence of disease infection.In addition, used syringe also can produce disease infection more widely if be recovered to reuse.Therefore, the discarding type safety injection device just is developed.
Known safety injector, as announce a kind of " the haulback type safety syringe-drum " that is disclosed in TaiWan, China patent announcement code T W595483 (date of application is a 2003/3/17) application of 2004/6/21, it comprises a syringe needle, a syringe and a plunger.The front end of this syringe needle is in conjunction with a needle body (needle tubing), and the rear end of this syringe needle is provided with one first convergence part.The front end of this syringe forms a syringe needle socket, and this syringe needle is incorporated in this syringe needle socket.The front end of this plunger is provided with a piston, and the front end of this piston is provided with one second convergence part.When exercising this syringe needle socket of its preceding end in contact before this plunger is pushed, second convergence part of this plunger is incorporated into first convergence part of this syringe needle, the structure that this plunger and this syringe needle are combined into one.Therefore, when this plunger is pulled when row back, this syringe needle can be incorporated in this syringe, to avoid this needle body medical personnel of stabbing.
In above-mentioned known safety injector, the front end of this piston is located in this second convergence part.Before this safety injector was used, this plunger was easy to make this syringe needle socket of its preceding end in contact because of being pushed accidentally to move ahead, and caused second convergence part of this plunger to be incorporated into first convergence part of this syringe needle.In case the structure that this plunger and this syringe needle are combined into one, this safety injector will lose the function of its liquid medicine injection fully, and can only be dropped need not, cause the serious wasting of resources.
A kind of " preventing the safety syringe-drum that needle set is shunk back when drawing medicament/injection " of announcing and for example that the application of TaiWan, China letters patent TW244916 (date of application is 2003/11/7) in 2004/10/1 disclosed and announce in one of 2004/10/21 TaiWan, China letters patent TW247216 (date of application 2003/7/1) and apply for a kind of various known safety injectors such as " safety injector structure-improveds " of being disclosed, its design is all failed to take into account it and is used preceding existing the problems referred to above, can't guarantee can keep before safety injector is used the function of normal liquid medicine injection.
As from the foregoing, above-mentioned known safety injector on reality is used, obviously has inconvenience and exists with defective, and remain to be improved.
Thus, the utility model proposes a kind of reasonable in design and effectively improve the safety injector of above-mentioned defective.
The utility model content
Main purpose of the present utility model is to provide a kind of safety injector, before guaranteeing that it is used, can not lose the function of its liquid medicine injection because of careless action.
In order to achieve the above object, this utility model mainly is a kind of safety injector is provided, and comprises that a syringe, a needle stand, a push rod, can destroy a structure and a sealing-plug; The front end of this syringe has a joining base, and the rear end of this syringe forms an opening; This needle stand is positioned in the joining base of this syringe, and the front end of this needle stand is in order to fix a needle tubing, and the rear end of this needle stand has one first linking part; The front end of this push rod has one second linking part, and the front end of this push rod passes the opening of this syringe; This can destroy the front end that structure is located at this push rod; The sealing plug sleeve is located at this and can be destroyed on the structure, and the sealing plug is matched with the inwall of this syringe and is slidedly arranged in this syringe; When this can destroy structure when not destroyed, this can destroy structure and isolate this first linking part and this second linking part; When this can destroy when destructurized, this second linking part is worn out and is sheathed on this and can destroys structural sealing-plug and be incorporated into this first linking part.
Since this can destroy destructurized before, second linking part of this push rod can't be incorporated into first linking part of this needle stand, and this can destroy the structure need could be destroyed by a suitable external force, therefore, before safety injector of the present utility model can guarantee that it is used, can not lose the function of its liquid medicine injection because of careless action.
Description of drawings
Fig. 1 is the three-dimensional exploded view of this utility model safety injector.
Fig. 2 is the plane exploded view of Fig. 1.
Fig. 3 is located at the structural axonometric chart of destroying of push rod front end for the sealing-plug of this utility model safety injector is sheathed on.
Fig. 4 is the axonometric chart of the sealing-plug of this utility model safety injector.
Fig. 5 is the axonometric chart of another embodiment of sealing-plug of this utility model safety injector.
Fig. 6 is the structure destroyed of this utility model safety injector and the partial perspective view of push rod, and it shows that this can destroy destructurized state.
Fig. 7 is located at the structural partial perspective view of destroying of push rod front end for the sealing-plug of this utility model safety injector is sheathed on, and it shows that this second linking part wears out the state of the pushing part of sealing plug.
Fig. 8 is the cutaway view of this utility model safety injector, and it shows that this can destroy the state that structure contacts the joining base of this syringe.
Fig. 9 is the cutaway view of this utility model safety injector, and it shows the state that this needle stand is incorporated in this syringe and this push rod is fractureed.
Figure 10 is the flow chart of the using method of this utility model safety injector.
Figure 11 is the push rod and the axonometric chart that can destroy another embodiment of structure of this utility model safety injector.
Figure 12 is the plane graph of Figure 11.
Figure 13 is the push rod and the axonometric chart that can destroy the another embodiment of structure of this utility model safety injector.
Figure 14 is the plane graph of Figure 13.
Figure 15 is the push rod of this utility model safety injector and can destroys the structure three-dimensional exploded view of an embodiment again.
Figure 16 is the three-dimensional combination figure of Figure 15.
Wherein, description of reference numerals is as follows:
12 handles of 1 syringe 10 joining bases, 11 openings
2 needle stands, 20 needle tubings, 21 first linking parts, 3 push rods
30 bodies of rod, 301 breach, 302 lockholes 31 can destroy structure
32 second linking parts, 321 profile grooves, 33 bar handles, 34 frame portions
35 convergence parts, 351 breach, 36 lattice framings, 361 breach
362 lock hooks, 4 sealing-plugs, 40 pushing parts, 401 dimpled grains
402 concave surfaces
The specific embodiment
For further setting forth this utility model is to reach technological means and the effect that predetermined purpose is taked, see also following about detailed description of the present utility model and accompanying drawing, believe the purpose of this utility model, feature and characteristics, can obtain thus going deep into and concrete understanding, yet appended graphic reference and the explanation usefulness of only providing not is to be used for this utility model is limited.
See also Fig. 1 to shown in Figure 3, this utility model is a kind of safety injector, comprises that a syringe 1, a needle stand 2, a push rod 3, can destroy a structure 31 and a sealing-plug 4, wherein:
Can destroy structure 31, it is located at the front end of this push rod 3, and is disposed at the periphery of this second linking part 32.
Sealing-plug 4, it is made that it can be materials such as rubber.Sealing plug 4 is sheathed on this and can destroys on the structure 31.Sealing plug 4 has a pushing part 40, and this pushing part 40 is corresponding to first linking part 21 of this needle stand 2 and second linking part 32 of this push rod 3.As shown in Figure 4 and Figure 5, the back of this pushing part 40 is provided with a dimpled grain 401 or a concave surface 402, is beneficial to it and is worn out by external force.
In the present embodiment, this can destroy the front end that structure 31 is shaped in this push rod 3.This can destroy structure 31 and comprise a supporting structure and a frame structure, and this supporting structure is connected between this body of rod 30 and this frame structure, and sealing plug 4 is sheathed on this frame structure.This frame structure comprises a plurality of frame portions 34 and a plurality of convergence part 35, and described convergence part 35 is connected between the described frame portion 34.Each convergence part 35 is perpendicular to described frame portion 34, and the junction of each convergence part 35 and each frame portion 34 is provided with a breach 351.This supporting structure comprises a word shape lattice framing 36 of at least two balanced configurations, and the two ends of each lattice framing 36 are connected to a wherein frame portion 34 of this body of rod 30 and this frame structure, and the two ends of each lattice framing 36 and centre are respectively equipped with a breach 361.
The front end of this needle stand 2 is fixed a needle tubing 20, this needle stand 2 is positioned in the joining base 10 of front end of this syringe 1, sealing plug 4 is sheathed on this and can destroys on the structure 31, the front end of this push rod 3 passes the opening 11 of the rear end of this syringe 1, makes sealing plug 4 be matched with the inwall of this syringe 1 and is slidedly arranged in this syringe 1.So finish the combination of safety injector of the present utility model.
See also Fig. 6 to shown in Figure 10, this utility model is a kind of using method of safety injector, and its step comprises:
(1) provide a syringe 1, a needle stand 2, a push rod 3, can destroy a structure 31 and a sealing-plug 4 (S101).The front end of this syringe 1 has a joining base 10.One needle tubing 20 is fixed in the front end of this needle stand 2, and this needle stand 2 is positioned in the joining base 10 of front end of this syringe 1, and the rear end of this needle stand 2 has one first linking part 21.The front end of this push rod 3 has one second linking part 32, and this can destroy the front end that structure 31 is located at this push rod 3.Sealing plug 4 is sheathed on this and can destroys on the structure 31.This can destroy structure 31 and be slidedly arranged in this syringe 1, and sealing plug 4 is matched with the inwall of this syringe 1 and is slidedly arranged in this syringe 1.The structure of so forming above-mentioned Fig. 1 to Fig. 3.
(2) spur this push rod 3 back row, with by this needle tubing 20 and this needle stand 2 suction one medicinal liquid (figure slightly) in this syringe 1 (S102).
(3) promote this push rod 3 and move ahead, this medicinal liquid is pushed in the pushing part 40 of sealing plug 4, to extrude this medicinal liquid outside this syringe 1 (S103) by this needle stand 2 and this needle tubing 20.When this can destroy the joining base 10 of sealing-plug 4 these syringes 1 of contact on the structure 31, this medicinal liquid was all extruded.When this can destroy structure 31 when not destroyed, this can destroy structure 31 and isolate this first linking part 21 and this second linking part 32, and this first linking part 21 and this second linking part 32 are separated by the pushing part 40 of sealing plug 4.So, even safety injector of the present utility model is not used for the injection of medicinal liquid, this first linking part 21 and this second linking part 32 still are spaced and can not combine.
(4) compress this and can destroy structure 31, can destroy structure 31 (S104) to destroy this.This can destroy structure 31 be subjected to the application of force that this push rod 3 moves ahead and this syringe 1 joining base 10 restriction and be compressed, the lattice framing 36 of this supporting structure is from its breach 361 bend fractures, and the convergence part 35 of this frame structure is from its breach 351 bend fractures.When this can destroy structure 31 when destroyed, second linking part 32 of the front end of this push rod 3 is worn out and is sheathed on this dimpled grain 401 that can destroy the sealing-plug 4 on the structure 31 or concave surface 402 and enters in this needle stand 2.
(5) in conjunction with this push rod 3 and this needle stand 2 (S105), wherein this second linking part 32 is incorporated into this first linking part 21, to form the structure of one.
(6) spur this push rod 3 back row, to take in this needle stand 2 and to be fixed in needle tubing 20 on this needle stand 2 in this syringe 1 (S106).So, can avoid medical personnel to be stabbed by this needle tubing 20.
(7) this push rod 3 (S107) that fractures.So, can avoid safety injector of the present utility model to be reclaimed undeservedly fully uses.
See also Figure 11 and shown in Figure 12, the main difference between present embodiment and Fig. 1 and Fig. 2 can be destroyed the supporting structure of structure 31 and the convergence part 35 of this frame structure for this.In the present embodiment, this supporting structure comprises the cross-like lattice framing 36 of at least two group balanced configurations, and the two ends of each lattice framing 36 are connected to a wherein frame portion 34 of this body of rod 30 and this frame structure, and the two ends of each lattice framing 36 and infall are respectively equipped with a breach 361.Each convergence part 35 favours described frame portion 34.As from the foregoing, this supporting structure can have different forms with this frame structure.
See also Figure 13 and shown in Figure 14, the main difference between present embodiment and Fig. 1 and Fig. 2 can be destroyed the supporting structure of structure 31 for this.In the present embodiment, this second linking part 32 is connected in this body of rod 30, and this can destroy structure 31 and be connected in this second linking part 32, and this can destroy the periphery that structure 31 is disposed at this second linking part 32.This supporting structure that can destroy structure 31 is connected between this second linking part 32 and this frame structure.This supporting structure comprises a word shape lattice framing 36 of at least two balanced configurations, and the two ends of each lattice framing 36 are connected to a wherein frame portion 34 of this second linking part 32 and this frame structure, and the centre of each lattice framing 36 is provided with a breach 361.As from the foregoing, this can destroy structure 31 can different forms.In addition, this second linking part 32 can be provided with a profile groove 321, to increase its elasticity.
See also Figure 15 and shown in Figure 16, the main difference between present embodiment and Fig. 1 and Fig. 2 can be destroyed the supporting structure of structure 31 for the body of rod 30 of this push rod 3 with this.In the present embodiment, this can destroy the front end that structure 31 is connected to this push rod 3 separably.As Figure 15 and shown in Figure 16, the front end of the body of rod 30 of this push rod 3 is provided with at least one lockhole 302, this supporting structure that can destroy structure 31 is provided with at least one group of lock hook 362, and this at least one group of lock hook 362 is connected in this at least one lockhole 302, makes this can destroy the front end that structure 31 is connected to this push rod 3.
So, by safety injector of the present utility model, have characteristics described as follows:
1, this can destroy destructurized before, second linking part of this push rod can't be incorporated into first linking part of this needle stand, therefore, before safety injector of the present utility model can guarantee that it is used, can not lose the function of its liquid medicine injection because of careless action.
2, this can destroy that structure needs could be destroyed by a suitable external force, and when this can destroy when destructurized, this second linking part just can be worn out the sealing plug, therefore, the push rod of safety injector of the present utility model and needle stand, the structure that can be combined as a whole not because of careless action, thus can before it is used, just not lose the function of its liquid medicine injection and cause the waste of resource.
The above; it only is the detailed description of specific embodiment of the utility model and graphic; and be not in order to restriction this utility model and feature of the present utility model; for the ordinary skill in the art; all equivalent modifications or variations of doing according to design of the present utility model all should be contained in the protection domain of the present utility model.
Claims (17)
1, a kind of safety injector is characterized in that, comprising:
One syringe, its front end has a joining base, and the rear end of this syringe forms an opening;
One needle stand, it is positioned in the joining base of this syringe, and the front end of this needle stand is in order to fix a needle tubing, and the rear end of this needle stand has one first linking part;
One push rod, its front end have one second linking part, and the front end of this push rod passes the opening of this syringe;
One can destroy structure, and it is located at the front end of this push rod; And
One sealing-plug, it is sheathed on this and can destroys on the structure, and the sealing plug is matched with the inwall of this syringe and is slidedly arranged in this syringe; Wherein can destroy under the not ruined state of structure at this, this can destroy structure and isolate this first linking part and this second linking part; Can destroy under the destructurized state at this, this second linking part is worn out and is sheathed on this and can destroys structural sealing-plug and be incorporated into this first linking part.
2, safety injector as claimed in claim 1 is characterized in that, this push rod has a body of rod, and this can destroy structure and this second linking part is connected in this body of rod, and this can destroy the periphery that structure is disposed at this second linking part.
3, safety injector as claimed in claim 2 is characterized in that, this can destroy structure and comprise a supporting structure and a frame structure, and this supporting structure is connected between this body of rod and this frame structure, and the sealing plug sleeve is located on this frame structure.
4, safety injector as claimed in claim 3, it is characterized in that, this supporting structure comprises a word shape lattice framing of at least two balanced configurations, and the two ends of described each lattice framing are connected to this body of rod and this frame structure, and the two ends of described each lattice framing and centre are respectively equipped with a breach.
5, safety injector as claimed in claim 3, it is characterized in that, this supporting structure comprises the cross-like lattice framing of at least two group balanced configurations, and the two ends of described each lattice framing are connected to this body of rod and this frame structure, and the two ends of described each lattice framing and infall are respectively equipped with a breach.
6, safety injector as claimed in claim 3 is characterized in that, this frame structure comprises a plurality of frame portions and a plurality of convergence part, and described convergence part is connected between the described frame portion, and the junction of described each convergence part and described each frame portion is provided with a breach.
7, safety injector as claimed in claim 6 is characterized in that, described each convergence part is perpendicular to described frame portion or favour described frame portion.
8, safety injector as claimed in claim 1 is characterized in that, this push rod has a body of rod, and this second linking part is connected in this body of rod, and this can destroy structure and be connected in this second linking part, and this can destroy the periphery that structure is disposed at this second linking part.
9, safety injector as claimed in claim 8 is characterized in that, this can destroy structure and comprise a supporting structure and a frame structure, and this supporting structure is connected between this second linking part and this frame structure, and the sealing plug sleeve is located on this frame structure.
10, safety injector as claimed in claim 9, it is characterized in that, this supporting structure comprises a word shape lattice framing of at least two balanced configurations, and the two ends of described each lattice framing are connected to this second linking part and this frame structure, and the centre of described each lattice framing is provided with a breach.
11, safety injector as claimed in claim 9 is characterized in that, this frame structure comprises a plurality of frame portions and a plurality of convergence part, and described convergence part is connected between the described frame portion, and the junction of described each convergence part and described each frame portion is provided with a breach.
12, safety injector as claimed in claim 11 is characterized in that, described each convergence part is perpendicular to described frame portion or favour described frame portion.
13, safety injector as claimed in claim 1 is characterized in that, the sealing plug has a pushing part, and this pushing part is corresponding to first linking part of this needle stand and second linking part of this push rod, and this pushing part is provided with a dimpled grain or a concave surface.
14, safety injector as claimed in claim 1 is characterized in that, this can destroy the front end that structure is shaped in this push rod.
15, safety injector as claimed in claim 1 is characterized in that, this can destroy the front end that structure is connected to this push rod separably.
16, safety injector as claimed in claim 15 is characterized in that, the front end of this push rod is provided with at least one lockhole, and this can destroy structure and be provided with at least one group of lock hook, and described at least one group of lock hook is connected in described at least one lockhole.
17, safety injector as claimed in claim 1 is characterized in that, second linking part of this push rod is provided with a profile groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420122277 CN2764417Y (en) | 2004-12-17 | 2004-12-17 | Safe syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420122277 CN2764417Y (en) | 2004-12-17 | 2004-12-17 | Safe syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2764417Y true CN2764417Y (en) | 2006-03-15 |
Family
ID=36167337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420122277 Expired - Fee Related CN2764417Y (en) | 2004-12-17 | 2004-12-17 | Safe syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2764417Y (en) |
-
2004
- 2004-12-17 CN CN 200420122277 patent/CN2764417Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |