CN201807018U - Safety injection needle - Google Patents
Safety injection needle Download PDFInfo
- Publication number
- CN201807018U CN201807018U CN2010201379455U CN201020137945U CN201807018U CN 201807018 U CN201807018 U CN 201807018U CN 2010201379455 U CN2010201379455 U CN 2010201379455U CN 201020137945 U CN201020137945 U CN 201020137945U CN 201807018 U CN201807018 U CN 201807018U
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- Prior art keywords
- needle
- protective casing
- injection needle
- spring
- syringe
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- Expired - Fee Related
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Abstract
The utility model discloses a safety injection needle comprising an interface, a protective cap, a protective sleeve, a sealing ring, a needle base, a needle tube, a spring, a trigger key and an end cover; the front end of the needle tube is sharp, the tail end is provided with a side hole that is adhered in the needle base and tightly plugged with the protective sleeve by the sealing ring; on the axis corresponding to the side hole of the needle tube, the needle base, the sealing ring and the protective sleeve are all provided with side holes, so as to form a liquid channel together with a ruhr interface and the inner hole of the needle tube; and the trigger key is arranged at the side wall of the middle section of the protective sleeve and can lock the needle base and compress the spring. In the utility model, the integrated structure of an injection needle automatic recovery device and an injection needle is adopted, thus leading the injection needle to be capable of being rotatably connected with conical heads of syringes of various types and specifications; and without the necessary involvement of syringes, the self-destruction research on syringes both at home and abroad can obtain liberation, therefore, burden of enterprises is no longer increased, the cost is lowered, the popularization and promotion are facilitated, the cost for disposing medical waste is reduced, and waste and pollution are reduced.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, a kind of specifically a kind of safe injection needle that is used for tissue penetration process and puncture back administration thereof or extracts tissue specimen.
Background technology
Since plastics system disposable sterilized syringe (containing entry needle) occurring the forties in last century, because technology (structure) reason, making product do not brought a large amount of propagation of blood borne disease thus by disposable use, serves as serious with acquired immune deficiency syndrome (AIDS), hepatitis C, hepatitis B especially; The World Health Organization (WHO) advocated in 1994: " disposable use self-destroyed syringe ", and how technical staff and enterprise prevent from, forbid to have done a large amount of explorations aspect the repeated use of syringe; But, owing to cause basic reason that blood borne disease propagates entry needle is intersected, reused to medical personnel and patient or to be caused by pricking wound at medical procedure, but not syringe itself; So WHO just proposed again in 1998: the requirement of " disposable injection needle safe in utilization ", the research and development of technical staff and enterprise to produce " safety needle ", cause the problem of pathophoresis with thorough solution needle stick injury.
At present, the self-destroyed syringe of the various structures of usually seeing on the market (active self-destruction formula or passive type self-destroyed), it can only realize unmaking of syringe, and it can not be used again, and but can not carry out security protection and unmakes entry needle; We know that disposable syringe belongs to two different products respectively with disposable needle, respectively have (world) national standard to come standard; Syringe is a container and metering outfit; Entry needle then is a lancet device, needs to set up the pin hole passage, and carry out the conveying of medicinal liquid or the collection of tissue specimen by the pin hole passage under the prerequisite of certain technology, and its degree of risk is very high.
The technical scheme that prevents needle stick injury, avoids syringe to be repeated to use of comparative maturity is both at home and abroad at present: by the effect of artificial or spring force, entry needle withdrawal after using is entered in syringe or the push rod inner core space, its method is more, but all has certain deficiency:
1, manually to retract the mode of syringe needle, need both hands to realize, in operation, there is the risk of self stabbing, do not meet modern prevention standard and requirement: in realizing the syringe safe protection process, only allow one-handed performance.
2, reclaim the mode of injection needle automatically with spring: spring is positioned at the structure of syringe conehead position (main flow scheme both at home and abroad), make entry needle and syringe needle retracting device and syringe be integral structure, in a single day syringe dispatches from the factory, just can not change syringe needle once more, also different to the requirement of entry needle simultaneously in clinical environment for use make troubles to user.
3, the most keyly be: the economic model of economizing type low-carbon economy, sustainable development is advocated in the whole world at present.The technical scheme of above safety injector then is to utilize the syringe after using that entry needle is wrapped up, and reaches the purpose of protection.Its technical scheme certainly will cause a large amount of syringes and entry needle together to be destroyed.Usually, various countries are for the excessive risk Biohazard Waste of contact blood, and the disposal options of taking is: burn.This is wasted with regard to causing a large amount of resources.A general entry needle quality is in 1 gram.And also have about 5 grams than the 2ml syringe quality of small dimension.So, though present technical scheme can reach the security protection to entry needle, also caused the waste of resource simultaneously, increased the processing cost of disposing garbage, be unfavorable for the requirement of sustainable development.
In person at Chinese patent: announced a kind of " active type safety syringe " among the CN2007200641699, its technical characterictic is to adopt the compression spring that initiatively separated structures is taken place after injection finishes for entry needle and syringe, can realize reaching aforementioned requirement to protecting syringe and separating of entry needle and unmaking disposal.But its deficiency is: this syringe must be used with this entry needle, can enough achieve the above object.The use that can not break that is to say that the syringe and the entry needle that must will meet this technical characterictic combine, and just can achieve the above object.Entry needle can not cooperate with other syringes, is unfavorable for promoting the use of.
At present, do not see that as yet the technical scheme that can solve above-mentioned insufficient a kind of safe injection needle fully is disclosed both at home and abroad.
A kind of safe injection needle of the present utility model has adopted with the incorporate needle point of entry needle and has reclaimed the protection structure automatically; make that this utility model is simple and reasonable for structure, safe and reliable, can be used with the syringe of domestic and international all size, model, material; injection finishes; push the triggering key; entry needle is recovered in the protective casing automatically, separates with syringe again.Implement simply to be beneficial to universal.
Summary of the invention
The technical solution of the utility model is achieved in that
A kind of safe injection needle reclaims the protection structure automatically by entry needle and entry needle and forms jointly, and it is characterized in that: entry needle is made up of needle tubing, needle stand, sealing ring, spiral interface; Automatically reclaiming the protection structure is made up of needle stand, spring and protective casing; Spring housing is installed in after the compression in the protective casing in the needle stand periphery, and the needle stand afterbody has ring edge.
Said a kind of entry needle is characterized in that: spiral interface is positioned at a side of protective casing, and spiral interface is porose, and is interconnected by connecting hole and protective casing endoporus; Sealing ring has side opening, needle stand to have a side opening, protective casing that the connection side opening is arranged, they all with consistent installation of side opening axis of needle tubing, make the needle tubing endoporus by the endoporus formation fluid passage of above-mentioned a plurality of side openings with spiral interface.Said a kind of safe injection needle is characterized in that: the periphery of needle stand is set with spring, and spring also is installed in the front end of protective casing endoporus, bonding needle tubing in the endoporus of needle stand after the needle stand compression.At the stage casing of protective casing sidewall, the triggering key is installed, can lock needle stand and compression spring.The ring edge of needle stand afterbody is triggered key lock in the front end of protective casing; Puncture successfully, inject or gather the treatment finish, after extracting entry needle, the observation needle point is perfect, push the triggering key of protecting pipe one side again, make needle stand lose support, spring discharges, under the effect of spring force, rapidly needle stand, needle point are recovered to the rear end of protecting pipe, make the complete conductively-closed of needle point; Because spring length is greater than needle body and needle stand total length, make the injection needle point spacing and can not deviate to expose once more, the lower end endoporus of protective casing has end cap to seal.
Safe injection needle is not when using, and its entry needle structure is not related with syringe, and it can be changed according to treatment with syringe before use, and this utility model can be connected with the syringe of any structure, model, material, for clinical use brings convenience.
The utlity model has following technological progress:
Because safe injection needle of the present utility model and automatic safety device are an integral body; do not take place any related with syringe; so; this utility model can be installed in the spiral interface of syringe front end of any model or material, makes this ordinary syringe possess security protection, avoids the function of needle stick injury.
This utility model is easy to manufacture, and is safe and reliable, implement simply, is not subjected to the restriction of syringe specification, model, material, widely applicable, is beneficial to universal.
Because the structure that this utility model has adopted with the isolating automatic recovery needle point of syringe and effectively continued to keep, in use, but definite effective shielding entry needle and needle point, thereby avoid the nurse by the risk of pricking wound, avoided medical personnel and other people member to be stabbed and cause and infect and the danger of pathophoresis by entry needle.
Because this utility model has adopted entry needle automatic recycling device and syringe separated structures, the safety injection scheme that makes the technical program proposition, the participation of no longer necessary syringe can make both at home and abroad the self-destruction research acquisition of syringe is liberated, and no longer increases the burden of enterprise.Make syringe recover its original function, no longer bear too much effect, reduce cost, be convenient to penetration and promotion, also help the disposal of Biohazard Waste, can reduce cost of disposal, cut the waste and pollute.
Description of drawings
Fig. 1 is the composition decomposing schematic representation of a kind of safe injection needle of this utility model;
Fig. 2 is the whole external structure sketch map of a kind of safe injection needle of this utility model;
Fig. 3 is the piercing process structural representation of a kind of safe injection needle of this utility model;
After Fig. 4 is the injection of a kind of safe injection needle of this utility model, entry needle is recovered into structural representation in the protection tube automatically.
Specific embodiment
As shown in Figure 1, a kind of safe injection needle of this utility model by: needle point helmet 1, needle tubing 2, needle stand 3, sealing ring 4, spring 5, end plug 6, protective casing 7, trigger key 8 and form jointly.Helmet 1, needle tubing 2, needle stand 3, sealing ring 4 common needle assemblies; Needle stand 3, spring 5, protective casing 7, end cap 6, triggering key 8 common formations are penetrated pin and are protected assembly automatically; Front end one side of protective casing 7 has the porose 7c in center of Rule spiral interface 7b, spiral interface to be communicated with the endoporus 7a of protective casing by connecting hole 7d, and end plug 6 is installed in the rear end of protective casing 7.At the porose 7a in protective casing 7 centers, in its front end needle stand 3 can be installed, at the porose 3a of needle stand 3 front ends, can bonding injection needle 2 in the hole, the needle tubing front end is keen edge 2a, and end has side opening 2b; There is side opening 3b the upper end of needle stand 3, and the lower end crimping of needle stand 3 enlarges 3c; Between needle tubing 2 and protective casing 7, sealing ring 4 is arranged, can make the two tight seal, sealing ring 4 also has a side opening 4a.
Fig. 2 is a kind of safe injection needle entire combination of this utility model structural representation.Among the figure: helmet 1 is enclosed within needle stand 3 appearances with protection needle tubing 2 and cutting edge; Spring 5 is placed in the front end endoporus of protective casing 7 after being compressed by needle stand 3, and the front end 8a support locking of the key 8 that is triggered; Between needle stand 3 and protective casing 7, there is sealing ring 4 closely to contact, the two is tightly connected.There are end plug 6 sealings the lower end of protecting pipe 7.The side opening of sealing ring, needle stand, protective casing, all consistent with needle tubing side opening axis, make the needle tubing endoporus form fluid passage by the endoporus of above-mentioned a plurality of side openings and Rule spiral interface.
Fig. 3 is the user mode structural representation of a kind of safe injection needle of this utility model; In the use, needle point helmet 1 is taken off, female Luer 7b and syringe are revolved insert firmly admittedly, carry out puncture injection according to the injection routine; Under the pressure of syringe piston; medicinal liquid is by the side opening of sealing ring, needle stand, protective casing; be injected in the predetermined tissue with the endoporus formation fluid passage of needle tubing side opening and Rule spiral interface; after injection finishes; push triggering key 8 with forefinger, make the crimping 3c of needle stand 3 lower ends lose support, needle stand 3 is under the active force of spring 5; needle stand 3 drives needle tubing 2 rapid bullets to protective casing 7 depths, and needle point 2a is protected.
Fig. 4 is that the entry needle of a kind of safe injection needle of this utility model is recovered into the structural representation in the protective casing automatically: among the figure; needle stand 3 d/d springs 5 launch the far-end of protective casing 7; since spring length greater than needle tubing 2 and needle stand length and, so needle point is effectively protected.In protective casing 7 lower end endoporus, end cap 6 is housed.
Claims (4)
1. safe injection needle, automatically reclaiming the protection structure by entry needle and entry needle forms jointly, it is characterized in that: entry needle is made up of needle tubing (2), needle stand (3), sealing ring (4), spiral interface (7b), reclaims the protection structure automatically and is made up of with protective casing (7) needle stand (3), spring (5); Spring (5) is enclosed within needle stand (3) periphery, is installed in after the compression in the protective casing (7), and needle stand (3) afterbody has ring edge (3c).
2. according to the said a kind of safe injection needle of claim 1, it is characterized in that: spiral interface (7b) is positioned at a side of protective casing (7), spiral interface porose (7c), and be interconnected by connecting hole (7d) and protective casing (7) endoporus (7a).
3. according to the said a kind of safe injection needle of claim 1; it is characterized in that: sealing ring (4) has side opening (4a), needle stand (3) to have a side opening (3b), protective casing (7) that connection side opening (7d) is arranged; they all with consistent installation of side opening (2b) axis of needle tubing (2), make the needle tubing endoporus by the endoporus formation fluid passage of above-mentioned a plurality of side openings with spiral interface.
4. according to the said a kind of safe injection needle of claim 1; it is characterized in that: the periphery pocketed springs (5) of needle stand (3); spring (5) also is installed in the front end of protective casing (7) endoporus (7a), bonding needle tubing (2) in the endoporus (3a) of needle stand (3) after needle stand (3) compression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201379455U CN201807018U (en) | 2010-02-27 | 2010-02-27 | Safety injection needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201379455U CN201807018U (en) | 2010-02-27 | 2010-02-27 | Safety injection needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201807018U true CN201807018U (en) | 2011-04-27 |
Family
ID=43889976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201379455U Expired - Fee Related CN201807018U (en) | 2010-02-27 | 2010-02-27 | Safety injection needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201807018U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104623768A (en) * | 2015-03-11 | 2015-05-20 | 张亚平 | Simple safety injection syringe |
| CN108543171A (en) * | 2018-05-29 | 2018-09-18 | 安徽宏宇五洲医疗器械股份有限公司 | A kind of safe injection needle |
| CN111565776A (en) * | 2018-01-26 | 2020-08-21 | 贝克顿·迪金森公司 | Flushing syringe with turnover cap |
| US11890446B2 (en) | 2020-04-17 | 2024-02-06 | Becton, Dickinson And Company | Cap for male and female threaded fittings |
| US11890445B2 (en) | 2019-12-23 | 2024-02-06 | Becton, Dickinson And Company | Universal disinfection cap |
| US11969572B2 (en) | 2020-04-17 | 2024-04-30 | Becton, Dickinson And Company | Disinfection cap |
| US11975168B2 (en) | 2019-11-18 | 2024-05-07 | Becton, Dickinson And Company | Disinfectant cap |
| US12005223B2 (en) | 2020-04-17 | 2024-06-11 | Becton, Dickinson And Company | Disinfection cap |
| US12029828B2 (en) | 2020-03-05 | 2024-07-09 | Becton, Dickinson And Company | Disinfection cap |
| US12076522B2 (en) | 2018-04-10 | 2024-09-03 | Becton, Dickinson And Company | Universal single-use cap for male and female connectors |
-
2010
- 2010-02-27 CN CN2010201379455U patent/CN201807018U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104623768A (en) * | 2015-03-11 | 2015-05-20 | 张亚平 | Simple safety injection syringe |
| CN111565776A (en) * | 2018-01-26 | 2020-08-21 | 贝克顿·迪金森公司 | Flushing syringe with turnover cap |
| US11944792B2 (en) | 2018-01-26 | 2024-04-02 | Becton, Dickinson And Company | Flush syringe with flip cap |
| US12076522B2 (en) | 2018-04-10 | 2024-09-03 | Becton, Dickinson And Company | Universal single-use cap for male and female connectors |
| CN108543171A (en) * | 2018-05-29 | 2018-09-18 | 安徽宏宇五洲医疗器械股份有限公司 | A kind of safe injection needle |
| US11975168B2 (en) | 2019-11-18 | 2024-05-07 | Becton, Dickinson And Company | Disinfectant cap |
| US11890445B2 (en) | 2019-12-23 | 2024-02-06 | Becton, Dickinson And Company | Universal disinfection cap |
| US12029828B2 (en) | 2020-03-05 | 2024-07-09 | Becton, Dickinson And Company | Disinfection cap |
| US11890446B2 (en) | 2020-04-17 | 2024-02-06 | Becton, Dickinson And Company | Cap for male and female threaded fittings |
| US11969572B2 (en) | 2020-04-17 | 2024-04-30 | Becton, Dickinson And Company | Disinfection cap |
| US12005223B2 (en) | 2020-04-17 | 2024-06-11 | Becton, Dickinson And Company | Disinfection cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20130227 |