CN2666462Y - Needle withdrawing safety self-destroying syringe - Google Patents
Needle withdrawing safety self-destroying syringe Download PDFInfo
- Publication number
- CN2666462Y CN2666462Y CN 200320125380 CN200320125380U CN2666462Y CN 2666462 Y CN2666462 Y CN 2666462Y CN 200320125380 CN200320125380 CN 200320125380 CN 200320125380 U CN200320125380 U CN 200320125380U CN 2666462 Y CN2666462 Y CN 2666462Y
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- CN
- China
- Prior art keywords
- draw point
- syringe
- awl
- agnail
- injection
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- 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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Abstract
The utility model relates to a self-destructive syringe, in particular to a safety self-destructive syringe which can extract a steel needle back to the interior of a syringe cylinder after the use. The syringe includes the syringe cylinder 3, a syringe rod 5 which is positioned in the syringe cylinder, a rubber stopper 4 which is arranged at the tail end of the syringe rod and a needle seat 2 which is sleeved outside the tail end of the syringe cylinder, a steel needle 1 positioned on the needle seat. The utility model is characterized in that: the top end of the syringe rod penetrates the rubber stopper, a snap-fit device is arranged between the lower end of the steel needle and the top end of the syringe rod, and a steel needle non-return device is arranged in the syringe cylinder. The steel needle can return to the interior of the syringe cylinder after the use of the syringe, namely, after the injection of the medicine liquid, so as to achieve the safety effect of preventing the puncture wounds of the people. By using a needle seat outer sleeve structure, the utility model has low requirements of the assembly process, and the qualification rate of the products can reach 100 percent, so the utility model is applicable to the assembly line large-scale production.
Description
Technical field:
This utility model relates to a kind of self-destroyed syringe, can make the safety type self-destroyed syringe of draw point pumpback to the injection tube after especially a kind of use.
Background technology:
Cause the cross infection of virus for fear of using antihygienic syringe, disposable syringe is widely used at medical field.Reuse in order to stop artificial recovery, people are provided with self-desttruction equipment on disposable syringe.But,, causes common self-destruction syringe the cross infection of virus though preventing the repeated use of syringe to a certain extent, but syringe uses the back because draw point exposes and makes depleted syringe produce many inconvenience in processes such as collection, transportation, processing, still might stab medical worker and other relevant personnel, cause the infection of virus and bacteria.
A kind of safety type self-destroyed syringe is arranged in the market, this syringe is after use, draw point is drawn back in the injection tube in the lump together with needle stand, though can reach self-destruction and prevent the purpose that the draw point thorn is hurted sb.'s feelings, but described safety type self-destroyed syringe, owing to adopt draw point to be drawn back structure in the injection tube in the lump, there are complex structure, assembly technology requirement height, easily cause shortcomings such as medicinal liquid seepage, product percent of pass are low together with needle stand.
Summary of the invention:
The purpose of this utility model is to overcome the weak point of the above safety type self-destroyed syringe, and the safety type self-destroyed syringe of another kind of version is provided.
The realization of this utility model purpose is between draw point lower end and injection rod top bayonet unit to be set, and the draw point check device is set in injection tube, after syringe is used, promptly after medicinal liquid is injected, only draw point is returned in the injection tube, reach and prevent to sting the purpose of hurting sb.'s feelings.
This utility model, comprise injection tube, be positioned at injection tube injection rod, place the injection rod end plug, be coated at the needle stand of injection tube end, draw point is positioned on the needle stand, it is characterized by: the top of described injection rod penetrates plug, between draw point lower end and injection rod top, bayonet unit is set, and the draw point check device is set in injection tube.
This utility model, described bayonet unit can only be inserted and be arranged at the vertical interior snap ring hole of injection rod by the agnail awl that is arranged at the draw point lower end and constitute; Described draw point check device can agnail be bored the dogging shoulder on only inserting and the stop ring that is arranged in the injection tube constitutes by being arranged at.Described agnail awl is only inserted, and the upper end is the draw point sleeve pipe, its profile is a cylinder, cylinder and needle stand endoporus are complementary, and the cylinder lateral surface is provided with radial groove, and also are provided with groove on the position of needle stand endoporus correspondence, on groove, dispose sealing ring, the needle stand endoporus is provided with the top shoulder, and the agnail awl is inserted and only is provided with the transfusion through hole, and the agnail awl is inserted lower end only and is the thorn awl, the thorn awl is complementary with the vertical interior snap ring hole of injection rod, and interior snap ring can be provided with elastic joint on the hole.
This utility model also can be provided with and end the mistake piece in described injection rod lower end.
The utlity model has following advance and good effect:
1, ends the mistake piece at injection rod near have one by hand portion, can prevent from not use to scrap with regard to self-destruction.
2, plug is passed in snap ring hole in injection rod top has, and closely cooperates with plug, can insert a buckle with the agnail awl of draw point lower end again and be connected, and behind liquid medicine injection, draw point can be returned in the injection tube, reaches safe effect.
3, injection rod is only partly drawn back draw point in the injection cylinder by bayonet unit, unlike other safety type self-destroyed syringe, draws back cylindrical shell in the lump together with the needle stand part, and such benefit is to avoid medicinal liquid seepage phenomenon.
4, agnail awl only inserts that the upper end be the draw point sleeve pipe, and its profile is a cylinder, and except that with draw point is connected, cylindrical end face and external cylindrical surface can cooperate preferably with the needle stand endoporus, and groove are set and dispose sealing ring, have good sealing property and stability.
5, adopt traditional needle stand jacket-type, simple in structure, less demanding to assembly technology, product percent of pass can reach 100%, is applicable to the streamline large-scale production.
Description of drawings:
Fig. 1, Fig. 2 are the structure principle chart of embodiment.
Fig. 3, Fig. 4 are embodiment work process sketch map.
Fig. 5 is the cutaway view of plug.
Fig. 6 is the vertical structural representation of injection rod.
Fig. 7, Fig. 8 are the structural representation of needle stand.
Fig. 9, Figure 10 insert structural representation only for the agnail awl.
Figure 11 is the Q portion enlarged drawing of Fig. 3.
Among the figure, 1, draw point 2, needle stand 21, top shoulder 22, groove 3, injection tube 31, stop ring 4, plug 5, injection rod 51, interior snap ring hole 52, elastic joint 53, end that mistake piece 6, agnail awl only insert 61, transfusion through hole 62, thorn awl 63, sleeve pipe 64, groove 7, sealing ring.
The specific embodiment:
Embodiment, with reference to accompanying drawing, draw point pumpback safety type self-destroyed syringe, comprise injection tube 3, be positioned at injection tube injection rod 5, place the injection rod end plug 4, be coated at the needle stand 2 of injection tube end, draw point 1 is positioned on the needle stand, the injection rod top penetrates plug, between draw point lower end and injection rod top, bayonet unit is set, and the draw point check device is set in injection tube.Bayonet unit by the agnail awl that is arranged at the draw point lower end only insert 6 and be arranged at injection rod vertical in snap ring hole 51 constitute.Agnail is bored the dogging shoulder 65 on only inserting to the draw point check device and the stop ring 31 that is arranged in the injection tube constitutes by being arranged at.The agnail awl is only inserted, and the upper end is a draw point sleeve pipe 63, its profile is a cylinder, cylindrical end face and external cylindrical surface can be complementary with the needle stand endoporus, the cylinder lateral surface is provided with radial groove 64, also be provided with groove 22 on the position of needle stand endoporus correspondence, configuration sealing ring 7 on the groove, the needle stand endoporus is provided with top shoulder 21, the agnail awl is inserted and only is provided with transfusion through hole 61, the agnail awl is inserted lower end only and is thorn awl 62, the thorn awl is complementary with the vertical interior snap ring hole of injection rod, and interior snap ring hole is provided with elastic joint 52, and the lower end of injection rod is provided with ends mistake piece 53.
The using method and the operation principle of present embodiment are as follows:
When clinical use, the using method of syringe extracts medicinal liquid routinely, during use, removes the piece 53 by mistake that ends of injection rod 5 lower ends earlier, and also the using method of syringe is carried out injecting liquid drug routinely.Only insert dogging shoulder 65 on 6 and withstand stop ring 31 in the injection tube 3 owing to be arranged on agnail awl, prevent to contract in the draw point 1, guarantee carrying out smoothly of injection work.After injection is finished,, make the interior snap ring hole 51 on injection rod top bore 62 buckles and be connected (as shown in Figure 3) with the thorn of the slotting lower end of agnail awl because agnail awl is inserted the top shoulder 21 that cylinder 63 only withstands needle stand 2 endoporus.Because it is cydariform and tool elasticity that the agnail awl is inserted bottom only, when injection rod back during pull, the effective width that is arranged at the agnail awl dogging shoulder 65 on only inserting is diminished, make it can pass through stop ring 31, draw point can be returned in the injection tube, from the folding mouth of injection rod injection rod is rolled over again, all stay (as shown in Figure 4) in the injection tube, reach the effect of safety and self-destruction with the draw point that medicinal liquid and contact patients are crossed.
Claims (6)
1, a kind of draw point pumpback safety type self-destroyed syringe, comprise injection tube (3), be positioned at injection tube injection rod (5), place the injection rod end plug (4), be coated at the needle stand (2) of injection tube end, draw point (1) is positioned on the needle stand, it is characterized by: the top of described injection rod penetrates plug, between draw point lower end and injection rod top, bayonet unit is set, and the draw point check device is set in injection tube.
2, draw point pumpback safety type self-destroyed syringe according to claim 1 is characterized by: described bayonet unit is inserted (6) by the agnail awl that is arranged at the draw point lower end and is arranged at the vertical interior snap ring hole (51) of injection rod and constitutes; Described draw point check device is bored the dogging shoulder (65) on only inserting and is arranged at interior stop ring (31) formation of injection tube by being arranged at agnail.
3, draw point pumpback safety type self-destroyed syringe according to claim 2, it is characterized by: described agnail awl is draw point sleeve pipe (63) on only inserting, its profile is a cylinder, described cylinder and needle stand endoporus are complementary, the needle stand endoporus is provided with top shoulder (21), the agnail awl is inserted and only is provided with the through hole (61) of infusing, and the agnail awl is inserted lower end only for stinging awl (62), and the thorn awl is complementary with the vertical interior snap ring hole of injection rod.
4, draw point pumpback safety type self-destroyed syringe according to claim 3, it is characterized by: on the cylinder lateral surface of described sleeve pipe (63), be provided with radial groove (64), and on the position of needle stand endoporus correspondence, also be provided with groove (22), on groove, dispose sealing ring (7).
5, draw point pumpback safety type self-destroyed syringe according to claim 2 is characterized by: be provided with elastic joint (52) on the snap ring hole in described.
6, according to claim 1,2,3,4 or 5 described draw point pumpback safety type self-destroyed syringes, it is characterized by:, be provided with and end mistake piece (53) in described injection rod lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320125380 CN2666462Y (en) | 2003-12-23 | 2003-12-23 | Needle withdrawing safety self-destroying syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320125380 CN2666462Y (en) | 2003-12-23 | 2003-12-23 | Needle withdrawing safety self-destroying syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2666462Y true CN2666462Y (en) | 2004-12-29 |
Family
ID=34349219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320125380 Expired - Fee Related CN2666462Y (en) | 2003-12-23 | 2003-12-23 | Needle withdrawing safety self-destroying syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2666462Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101693400A (en) * | 2009-11-05 | 2010-04-14 | 浙江胜利医疗器械有限公司 | Production process and production mold for self-destruction safety syringe rubber plug |
-
2003
- 2003-12-23 CN CN 200320125380 patent/CN2666462Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101693400A (en) * | 2009-11-05 | 2010-04-14 | 浙江胜利医疗器械有限公司 | Production process and production mold for self-destruction safety syringe rubber plug |
| CN101693400B (en) * | 2009-11-05 | 2013-03-20 | 浙江胜利医疗器械有限公司 | Production process and production mold for self-destruction safety syringe rubber plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FU WEILAN Free format text: FORMER OWNER: LUO SONGNENG Effective date: 20061124 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20061124 Address after: 20, DE, building 518034, block A, first World Plaza, Hongli West Road, Guangdong, Shenzhen Patentee after: Fu Weilan Address before: 515300 Puning City, Guangdong Province quicksand Horse Industrial Zone, Puning city Ross Medical Equipment Co., Ltd. Patentee before: Luo Songneng |
|
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN CITY NUOGAO BIOLOGY ENGINEERING CO., LTD Free format text: FORMER OWNER: FU WEILAN Effective date: 20071109 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20071109 Address after: 20, A, building 518034, block 1, World Plaza, No. 7002 Hongli West Road, Guangdong, Shenzhen, E Patentee after: Shenzhen Nuogao Biological Engineering Co. Ltd. Address before: 20, DE, building 518034, block A, first World Plaza, Hongli West Road, Guangdong, Shenzhen Patentee before: Fu Weilan |
|
| 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 |