CN202446596U - Automatic retraction type safe self-destruction disposable injector - Google Patents
Automatic retraction type safe self-destruction disposable injector Download PDFInfo
- Publication number
- CN202446596U CN202446596U CN2012200402307U CN201220040230U CN202446596U CN 202446596 U CN202446596 U CN 202446596U CN 2012200402307 U CN2012200402307 U CN 2012200402307U CN 201220040230 U CN201220040230 U CN 201220040230U CN 202446596 U CN202446596 U CN 202446596U
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- China
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- injection core
- syringe
- core rod
- needle
- automatic retracting
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Abstract
The utility model discloses an automatic retraction type safe self-destruction disposable injector which comprises a needle head, a needle cylinder and an injection core pin. A needle head seat connected with the needle head is arranged inside one end of the needle cylinder and connected with a locking block, a spring seat is arranged in the injection core pin, a spring is arranged between the spring seat and the injection core pin, the spring seat can be locked and connected with the locking block, a rubber plug is arranged between the spring seat and the locking block, the rubber plug is fixed on the end portion of the injection core pin. The automatic retraction type safe self-destruction disposable injector is reasonable and simple in structure, can achieve automatic retraction and safe self-destruction disposable use and is free of cross infection. The needle head can automatically retract to the inside of the cylinder, medical personnel and other relevant personnel cannot be punctured in a treatment process after use, the automatic retraction type safe self-destruction disposable injector is easy to manufacture, low in cost and safe in use, has good practical applicability and can produce good economic benefits and social benefits.
Description
Technical field
This utility model relates to a kind of disposable syringe, is specifically related to a kind of automatic retracting type safety self-destruct disposable syringe.
Background technology
Safe re-use preventing once-used syringe is widely used in medical field, has avoided using unhygienic syringe and the viral cross infection that produces.But common disposable syringe is because the problem of structure causes certain operations person to carry out secondary use or repeatedly use; The violation operation of user produces cross infection; Reuse in order to stop artificial recovery, people are provided with self-desttruction equipment on disposable ordinary syringe.But; Though re-use preventing once-used syringe can prevent the repeated use of syringe; But syringe uses the back because entry needle exposes and makes depleted syringe in processes such as collection, transportation, processing, produce many inconvenience; Still might stab medical worker and its related personnel, cause the cross infection of virus and bacteria.Therefore, designing a kind of entry needle disposable syringe of the safety self-destruct function of retraction automatically, is the urgent needs in current market.
The utility model content
Goal of the invention: to the deficiency that exists in the prior art, the purpose of this utility model provides a kind of automatic retracting type safety self-destruct disposable syringe, to satisfy user demand.
Technical scheme: in order to realize the foregoing invention purpose, the technical scheme that this utility model adopts is following:
A kind of automatic retracting type safety self-destruct disposable syringe comprises syringe needle, syringe and injection core rod; In an end of syringe, be provided with the needle holder that links to each other with syringe needle, described needle holder links to each other with latch segment; In injection core rod, be provided with spring base, between spring base and injection core rod, be provided with spring; Described spring base can be connected with latch segment locking, between spring base and latch segment, is provided with plug, and described plug is fixed on the end of injection core rod.
Between described needle holder and syringe, be provided with O type circle.
Be provided with the stopping ring on the top of described spring base, be provided with the conical grab that matches and use with the stopping ring in the bottom of described latch segment.
Be provided with snap ring cooperates with draw-in groove on the injection core rod in the rear end of described spring base.
Between described injection core rod rear end and syringe, be provided with the lamellar safety plate.
The drift of described spring is 50 ~ 80mm.
This automatic retracting type safety self-destruct disposable syringe, the internal diameter of 10mL injection cylinder are φ 16.5 ~ φ 17mm, and the seal line length is 46.5 ~ 44mm.Needle holder is a 6:100 locking-type cone joint, is convenient to install conventional disposable needle head.The drift of spring is 50 ~ 80mm.By the color of hands different change of specification with entry needle, be black like the entry needle of 22G, the color of pressing hands also is black; The entry needle of 23G is blue, and the color of pressing hands also is blueness or the like.
Beneficial effect: the automatic retracting type safety self-destruct disposable syringe of this utility model, rational in infrastructure simple, can accomplish retraction and the disposable use of safety self-destruct automatically; Cross infection can not take place, because syringe needle bounces back in the cylindrical shell automatically, in using last handling process, can not stab medical worker and its related personnel yet; And product is easy to manufacture, cheap; Safe in utilization, have good practicability, can produce good economic benefits and social benefit.
Description of drawings
Fig. 1 is the structural representation of automatic retracting type safety self-destruct disposable syringe;
Fig. 2 is the enlarged drawing of the local A of Fig. 1;
Fig. 3 is a retraction back sketch map.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is further described.
As depicted in figs. 1 and 2, automatic retracting type safety self-destruct disposable syringe structure mainly comprises injection needle 1, needle holder 2, latch segment 5, plug 6, spring 7, spring base 8, injection cylinder 9 and injection core rod 12.Injection needle 1, needle holder 2 are connected as a body with latch segment 5 successively; Be located at the end in the injection cylinder 9, be provided with card groove 16, be provided with card bulge loop 15 at the front end of latch segment 5 in the bottom of needle holder 2; Making needle holder 2 be connected with latch segment 5 after blocking groove 16 and card bulge loop 15 tightening each other is integral; On needle holder 2, be provided with arc-shaped slot 4, in arc-shaped slot 4, establish O type circle 3, be used for the gap between needle seal headstock 2 and the injection cylinder 9.What injection core rod 12 can stretch back and forth is located in the injection cylinder 9; In injection core rod 12, be provided with draw-in groove 11; Be provided with snap ring 10 on the top of spring base 8, snap ring 10 makes spring base 8 be fixed in the injection core rod 12 after snapping in draw-in groove 11, between spring base 8 and injection core rod 12, is provided with spring 7.Be provided with stopping ring 18 on the top of spring base 8, be provided with conical grab 17 in the bottom of latch segment 5, conical grab 17 can tighten locking each other with stopping ring 18.Plug 6 is located in the injection cylinder 9, is used to separate injection and injection core rod 12, and links to each other with an end of injection core rod 12, and latch segment 5 and stopping ring 18 are located at the both sides of plug 6.Be provided with in the bottom of injection core rod 12 and press hands 14, between injection cylinder 9 and injection core rod 12, be provided with safety plate 13, its effect is: when syringe uses, must get rid of safety plate, could shift injection core rod onto the end, make liquid medicine injection all inject human body; Prevent before completed knocked down products and syringe use misoperation and being taken place by the phenomenon of self-destruction; Whether can make user clearly discern syringe was used.
This automatic retracting type safety self-destruct disposable syringe, the internal diameter of 10mL injection cylinder 9 are φ 16.5 ~ φ 17mm, and the seal line length is 46.5 ~ 44mm.Needle holder 2 is a 6:100 locking-type cone joint, is convenient to install conventional disposable needle head.The drift of spring 7 is 50 ~ 80mm.By the color of hands 14 different change of specification with entry needle, be black like the entry needle of 22G, the color of pressing hands also is black; The entry needle of 23G is blue, and the color of pressing hands also is blueness or the like.
As shown in Figure 3, the use of automatic retracting type safety self-destruct disposable syringe is: open safety plate, safety plate promptly fractures; Extract required injection drug push back get rid of bubble after, inject; The conical grab 17 in latch segment 5 rear ends punctures plug 6 when injection finishes; Snap in stopping ring 18; And push the draw-in groove 11 that spring base 8 makes snap ring 10 disengaging injection core rods 12 inboards of spring base 8 bottoms, thereby make spring smoothly needle holder 2 and latch segment 5 to be drawn in the cavity of injection core rod 12.At this moment, the syringe repeated use of can't disintegrating, the entry needle of crossing with medicinal liquid and contact patients all is stored in the tube of core bar, accomplishes retraction safety self-destruct function automatically, reaches the safety self-destruct purpose.
Claims (8)
1. an automatic retracting type safety self-destruct disposable syringe comprises syringe needle (1), syringe (9) and injection core rod (12); It is characterized in that: in an end of syringe (9), be provided with the needle holder (2) that links to each other with syringe needle (1), described needle holder (2) links to each other with latch segment (5); In injection core rod (12), be provided with spring base (8), between spring base (8) and injection core rod (12), be provided with spring (7); Described spring base (8) can be connected with latch segment (5) locking, between spring base (8) and latch segment (5), is provided with plug (6), and described plug (6) is fixed on the end of injection core rod (12).
2. automatic retracting type safety self-destruct disposable syringe according to claim 1 is characterized in that: between described needle holder (2) and syringe (9), be provided with O type circle (3).
3. automatic retracting type safety self-destruct disposable syringe according to claim 1; It is characterized in that: be provided with stopping ring (18) on the top of described spring base (8), be provided with the conical grab (17) that matches and use with stopping ring (18) in the bottom of described latch segment (5).
4. automatic retracting type safety self-destruct disposable syringe according to claim 1 is characterized in that: the rear end of described spring base (8) be provided with injection core rod (12) on the snap ring (10) that cooperates of draw-in groove (11).
5. automatic retracting type safety self-destruct disposable syringe according to claim 1 is characterized in that: between described injection core rod (12) rear end and syringe (9), be provided with lamellar safety plate (13).
6. automatic retracting type safety self-destruct disposable syringe according to claim 1 is characterized in that: the drift of described spring (7) is 50 ~ 80mm.
7. automatic retracting type safety self-destruct disposable syringe according to claim 1 is characterized in that: described injection cylinder (9) volume is 10mL, and internal diameter is φ 16.5 ~ φ 17mm, and the seal line length is 46.5 ~ 44mm.
8. automatic retracting type safety self-destruct disposable syringe according to claim 1 is characterized in that: described needle holder (2) is a 6:100 locking-type cone joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200402307U CN202446596U (en) | 2012-02-06 | 2012-02-06 | Automatic retraction type safe self-destruction disposable injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200402307U CN202446596U (en) | 2012-02-06 | 2012-02-06 | Automatic retraction type safe self-destruction disposable injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202446596U true CN202446596U (en) | 2012-09-26 |
Family
ID=46862494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200402307U Expired - Lifetime CN202446596U (en) | 2012-02-06 | 2012-02-06 | Automatic retraction type safe self-destruction disposable injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202446596U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105031771A (en) * | 2015-08-03 | 2015-11-11 | 江西洪达医疗器械集团有限公司 | Rubber plug locking type auto-destruct syringe |
-
2012
- 2012-02-06 CN CN2012200402307U patent/CN202446596U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105031771A (en) * | 2015-08-03 | 2015-11-11 | 江西洪达医疗器械集团有限公司 | Rubber plug locking type auto-destruct syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120926 |
|
| CX01 | Expiry of patent term |