CN104001239A - Retractable accommodating syringe needle tube apparatus - Google Patents
Retractable accommodating syringe needle tube apparatus Download PDFInfo
- Publication number
- CN104001239A CN104001239A CN201310055579.7A CN201310055579A CN104001239A CN 104001239 A CN104001239 A CN 104001239A CN 201310055579 A CN201310055579 A CN 201310055579A CN 104001239 A CN104001239 A CN 104001239A
- Authority
- CN
- China
- Prior art keywords
- needle tube
- assembly
- syringe needle
- needle
- needle tubing
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000009423 ventilation Methods 0.000 abstract 1
- 241000725303 Human immunodeficiency virus Species 0.000 description 11
- 208000030507 AIDS Diseases 0.000 description 10
- 239000003570 air Substances 0.000 description 8
- 208000011580 syndromic disease Diseases 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 208000035049 Blood-Borne Infections Diseases 0.000 description 2
- 208000005176 Hepatitis C Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 208000002672 hepatitis B Diseases 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 206010013654 Drug abuse Diseases 0.000 description 1
- XQFRJNBWHJMXHO-RRKCRQDMSA-N IDUR Chemical compound C1[C@H](O)[C@@H](CO)O[C@H]1N1C(=O)NC(=O)C(I)=C1 XQFRJNBWHJMXHO-RRKCRQDMSA-N 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000001647 drug administration Methods 0.000 description 1
- 238000012377 drug delivery Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 231100000206 health hazard Toxicity 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 201000004792 malaria Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 208000011117 substance-related disease Diseases 0.000 description 1
- 208000006379 syphilis Diseases 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 201000008827 tuberculosis Diseases 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to a retractable accommodating syringe needle tube apparatus. The retractable accommodating syringe needle tube apparatus comprises a needle tube body and is characterized in that a piston assembly is arranged in the needle tube body, one end of the piston assembly is provided with a proximal end piston, and the other end of the piston assembly is provided with an air tight assembly. Meanwhile, the proximal end piston, the air tight assembly and the needle tube body for a middle chamber, and the piston assembly is provided with a sealing joint assembly. Further, a vacuum chamber is formed between the sealing joint assembly and the needle tube body, ventilation holes are distributed in the needle tube body, one side of the needle tube body is provided with a piston assembly through hole, and the other side of the needle tube body is provided with a needle passing opening. Therefore, by means of the matching between the needle tube body and the piston assembly, needs of the retraction force of the needle assembly as well as the balance of the air pressure needed by the moving piston assembly can be met, so that the accommodating need of the needle assembly can be ensured. In addition, the air in and out need of the forward or backward moving piston assembly can be met, and the blocking is avoided. Moreover, the retractable accommodating syringe needle tube apparatus is simple in structure, capable of supporting most of retractable syringes to use and easy to manufacture and popularize.
Description
Technical field
The present invention relates to a kind of needle tube device, relate in particular to a kind of retraction intake type syringe needle tube device.
Background technology
In recent years, public's (for example, medical worker and medical care provider, addict, junkie and similar) realizes that syringe needle is reused and unexpected health hazard problem of stabbing event pin day by day.For example, at least two ten kinds of blood borne diseases can be reused or the unexpected event of stabbing propagates by syringe needle.For example, these blood borne diseases may comprise, be not limited to HIV (human immunodeficiency virus) (HIV), acquired immune deficiency syndrome (AIDS) (acquired immune deficiency syndrome (AIDS)), hepatitis B, hepatitis C, syphilis, malaria, tuberculosis and herpes.In the U.S., reuse and the syringe needle event of surprisingly stabbing of syringe needle has caused at least 36% HIV (human immunodeficiency virus) or hepatitis B more than acquired immune deficiency syndrome (AIDS) case and 50% and the risk of hepatitis C.Therefore, be necessary to contain the way of needle sharing junkie.
While checking about world population, further find to share syringe or the reusable serious problems of syringe needle.Nearly 30% HIV (human immunodeficiency virus) or acquired immune deficiency syndrome (AIDS) case are for example directly to use contaminated syringe needle in Brazil, Chile, Uruguay, Paraguay and Argentina.Infect case in the HIV (human immunodeficiency virus) of China approximately 70% and directly used contaminated syringe needle.In the East European countries, 80% injection drug addicts admit has the contaminated syringe needle of sharing.HIV (human immunodeficiency virus) or acquired immune deficiency syndrome (AIDS) case in Poland and Yugoslavia approximately 43% are all directly shared because drug abuse causes syringe.
Syringe needle is surprisingly stabbed and is also being threatened medical personnel.Especially report that, every year about 1,000,000 accident stabs by medical personnel.But believe that non-report data have at least the unexpected syringe needle of 3,000,000 to stab annual generation, wherein do not report for approximately 2,000,000.Every research is estimated, stabs nurse from all unexpected syringe needles, about 40% to 53% of the injury that generation is not reported a case to the security authorities.Every research also estimates, from all syringe needles to Laboratory Technician, and about 92% of the injury of not reporting a case to the security authorities.The injury occurring from syringe needle to doctor is estimated in further every research, report a case to the security authorities nearly 70% to 95%.
1997, a research of CDC of the U.S. (CDC) was found by using safety needle can avoid about 76% to be stabbed by syringe needle.At present, there is polytype safety injector.Unfortunately, the safety injector existing on these markets at present, because they are in numerous problems, is not only in use, and is to be criticized by industry on effectiveness always.Therefore also exist the huge space of improving.
The safety injector of one type is the safety injector of a vacuum aided of syringe.In the time that valve starts pin cover, the reason of the retraction force producing due to vacuum chamber, the needle retractable of syringe enters in needle body, when valve is during from advanced position to stuck position, the retraction force of vacuum chamber is to be ratio with the surface of valve, if vacuum chamber is enough not large, the retraction force that vacuum chamber produces is so just enough not large, to such an extent as to cannot be by needle retractable in needle tubing, this phenomenon is especially when liquid chamber is to have a small size, below 1cc, this phenomenon is especially serious, and little fluid chamber requires needle tubing to have a little diameter.Therefore corresponding little retraction force.Little retraction force hampers the development of needle retractable type and uses potentiality.
Meanwhile, in use there will not be accidental in order to ensure syringe needle, have good sealing property, special needle tube device need to be provided.
Summary of the invention
Object of the present invention is exactly in order to solve the above-mentioned problems in the prior art, and a kind of retraction intake type syringe needle tube device is provided.
Object of the present invention is achieved through the following technical solutions:
A kind of retraction intake type syringe needle tube device, include needle tubing body, wherein: in described needle tubing body, be provided with piston component, one end of described piston component is provided with proximal piston, the other end of described piston component is provided with airtight assembly, described proximal piston, airtight assembly and needle tubing body form medial compartment, on described piston component, be provided with sealing and be connected assembly, between described sealing linking assembly and needle tubing body, form vacuum chamber, on described needle tubing body, be distributed with vent, one side of described needle tubing body is provided with piston component through hole, the side that makes of described needle tubing body is provided with the current opening of syringe needle.
Further, above-mentioned one retraction intake type syringe needle tube device, wherein: described needle tubing body is the body of falling convex character shape, the described body of falling convex character shape includes upper end body, on described upper end body, be communicated with lower end body, on described upper end body, be distributed with vent, described lower end body is fluid chamber.
Further, above-mentioned one retraction intake type syringe needle tube device, wherein: the outer end of described upper end body and lower end body joining place is distributed with chamfering platform, the inner of described upper end body and lower end body joining place is distributed with stop bit platform.
Further, above-mentioned one retraction intake type syringe needle tube device, wherein: in described fluid chamber, be provided with scale marking layer.
Again further, above-mentioned one retraction intake type syringe needle tube device, wherein: described vent is triangle, or is rectangle, or is oval.
The advantage of technical solution of the present invention is mainly reflected in: by coordinating between needle tubing body and piston component, can effectively be separated out medial compartment and vacuum chamber.Like this, advance needed air pressure balance simultaneously meeting piston component, meet the retraction power of needle assembly, guarantee the storage needs of needle assembly.And, by the existence of vent, can meet the needed air turnover of piston component in the time advancing or retract, there will not be stuck.Moreover simple structure of the present invention, can coordinate the use of most of retracting type injection devices, be easy to manufacture and promote.
Brief description of the drawings
Object of the present invention, advantage and disadvantage, by for illustration and explanation the non-limitative illustration by preferred embodiment below.These embodiment are only the prominent examples of application technical solution of the present invention, and all technical schemes of taking to be equal to replacement or equivalent transformation and form, within all dropping on the scope of protection of present invention.
Fig. 1 is the organigram of this retraction intake type syringe needle tube device.
| 1 | Piston component | 2 | Proximal piston |
| 3 | Airtight assembly | 4 | Medial compartment |
| 5 | Vacuum chamber | 6 | Vent |
| 7 | The syringe needle opening that passes through | 8 | Upper end body |
| 9 | Lower end body | 10 | Chamfering platform |
| 11 | Stop bit platform | 12 | Sealing is connected assembly |
。
Detailed description of the invention
One retraction intake type syringe needle tube device as shown in Figure 1, includes needle tubing body, and its unusual part is: in needle tubing body of the present invention, be provided with piston component 1.Specifically, in order to meet the air pressure balance needs of drug delivery, one end of piston component 1 is provided with proximal piston 2, and the other end of piston component 1 is provided with airtight assembly 3.Thus, make proximal piston 2, airtight assembly 3 form medial compartment 4 with needle tubing body.And, in order to meet the retraction needs of needle assembly of subsequent installation, ensure suitable vacuum state, on piston component 1, be provided with sealing and be connected assembly 12, and between sealing linking assembly 12 and needle tubing body, form vacuum chamber 5, on needle tubing body, be distributed with vent 6.Meanwhile, for the facility of assembling, be provided with piston component 1 through hole in a side of needle tubing body, be provided with the current opening 7 of syringe needle in the side that makes of pipe body.
With regard to preferably embodiment of the present invention one, to consider that the vacuum space in vacuum chamber 5 meets the retraction power of needle assembly, and there will not be bubble-tight leakage problem, the needle tubing body of employing is the body of falling convex character shape, forms a terrace structure.Specifically, the body of falling convex character shape of employing includes upper end body 8, is communicated with lower end body 9 on upper end body 8.Meanwhile, for the ease of air pressure balance, can promote smoothly piston component 1, on upper end body 8, be distributed with vent 6.And, meeting the needs of daily drug administration by injection, the lower end body 9 of employing is fluid chamber.
Further, in order to improve overall fastness, can realize the transition that is connected of upper end body 8 and lower end body 9 simultaneously, be distributed with chamfering platform 10 in the outer end of upper end body 8 and lower end body 9 joining places.Meanwhile, consider the restriction suitable to the shape of advancing of piston component 1, guarantee follow-up can be smoothly and needle assembly carry out combination, ensure Involution, upper end body 8 is distributed with stop bit platform 11 with the inner of lower end body 9 joining places.
Meanwhile, know the concrete quantity of injected material for the ease of user, in fluid chamber, be provided with scale marking layer.
Again further, need for the ease of air pressure balance, improve the counterbalance effect of needle tubing body inner and outer air pressure, adopting vent 6 is triangle, can be also rectangle, can also be oval.And, consider and the difference of various user demands can also adopt irregularly-shaped hole to be used as vent 6.
In conjunction with actual service condition of the present invention, under any circumstance, vent 6 allows there is pressure in medial compartment 4.Pressure size is equal to the pressure of the external volume of this retraction intake type syringe, for example, and ambient air when this syringe.Like this, be convenient to the propelling of piston component 1.And the volume of the vacuum chamber 5 that the present invention adopts is enough large.Like this, after piston component 1 is combined with needle assembly, can produce enough retraction forces, make needle assembly be received into smoothly in needle tubing body.
Can find out by above-mentioned character express, adopt after the present invention, by coordinating between needle tubing body and piston component, can effectively be separated out medial compartment and vacuum chamber.Like this, advance needed air pressure balance simultaneously meeting piston component, meet the retraction power of needle assembly, guarantee the storage needs of needle assembly.And, by the existence of vent, can meet the needed air turnover of piston component in the time advancing or retract, there will not be stuck.Moreover simple structure of the present invention, can coordinate the use of most of retracting type injection devices, be easy to manufacture and promote.
Claims (5)
1. a retraction intake type syringe needle tube device, include needle tubing body, it is characterized in that: in described needle tubing body, be provided with piston component, one end of described piston component is provided with proximal piston, the other end of described piston component is provided with airtight assembly, described proximal piston, airtight assembly and needle tubing body form medial compartment, on described piston component, be provided with sealing and be connected assembly, between described sealing linking assembly and needle tubing body, form vacuum chamber, on described needle tubing body, be distributed with vent, one side of described needle tubing body is provided with piston component through hole, the side that makes of described needle tubing body is provided with the current opening of syringe needle.
2. a kind of retraction intake type syringe needle tube device according to claim 1, it is characterized in that: described needle tubing body is the body of falling convex character shape, the described body of falling convex character shape includes upper end body, on described upper end body, be communicated with lower end body, on described upper end body, be distributed with vent, described lower end body is fluid chamber.
3. a kind of retraction intake type syringe needle tube device according to claim 2, it is characterized in that: the outer end of described upper end body and lower end body joining place is distributed with chamfering platform, the inner of described upper end body and lower end body joining place is distributed with stop bit platform.
4. a kind of retraction intake type syringe needle tube device according to claim 2, is characterized in that: in described fluid chamber, be provided with scale marking layer.
5. a kind of retraction intake type syringe needle tube device according to claim 1, is characterized in that: described vent is triangle, or is rectangle, or be oval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310055579.7A CN104001239A (en) | 2013-02-21 | 2013-02-21 | Retractable accommodating syringe needle tube apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310055579.7A CN104001239A (en) | 2013-02-21 | 2013-02-21 | Retractable accommodating syringe needle tube apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104001239A true CN104001239A (en) | 2014-08-27 |
Family
ID=51362319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310055579.7A Pending CN104001239A (en) | 2013-02-21 | 2013-02-21 | Retractable accommodating syringe needle tube apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104001239A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1421248A (en) * | 2001-11-28 | 2003-06-04 | 萨克哈拉姆D.马赫卡 | Improved disposable safety syringe with retractable needle |
| CN2584201Y (en) * | 2002-11-06 | 2003-11-05 | 费建国 | Disposable puncture needle |
| US6846301B2 (en) * | 2002-11-01 | 2005-01-25 | Maxxon, Inc. | Disposable safety syringe |
| US20080114306A1 (en) * | 2006-11-03 | 2008-05-15 | Bare Rex O | Small volume syringe with writing portion |
| US20080161760A1 (en) * | 2004-08-20 | 2008-07-03 | Medigard Limited | Medical Device Containing a Vacuum Chamber |
| US20120022447A1 (en) * | 2010-07-23 | 2012-01-26 | Oliver Richard B | Multi-Chambered Retractable Safety Syringe |
| CN102397603A (en) * | 2010-09-16 | 2012-04-04 | 无锡市宇寿医疗器械股份有限公司 | Safety syringe for retracting needle point by depending on vacuum negative pressure |
| CN102698346A (en) * | 2012-06-30 | 2012-10-03 | 蔡根顺 | Air-pressure-type retraction self-destruction syringe |
| CN203123195U (en) * | 2013-02-21 | 2013-08-14 | 无锡星创生物技术有限公司 | Needle tube device for retractable containing type syringe |
-
2013
- 2013-02-21 CN CN201310055579.7A patent/CN104001239A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1421248A (en) * | 2001-11-28 | 2003-06-04 | 萨克哈拉姆D.马赫卡 | Improved disposable safety syringe with retractable needle |
| US6846301B2 (en) * | 2002-11-01 | 2005-01-25 | Maxxon, Inc. | Disposable safety syringe |
| CN2584201Y (en) * | 2002-11-06 | 2003-11-05 | 费建国 | Disposable puncture needle |
| US20080161760A1 (en) * | 2004-08-20 | 2008-07-03 | Medigard Limited | Medical Device Containing a Vacuum Chamber |
| US20080114306A1 (en) * | 2006-11-03 | 2008-05-15 | Bare Rex O | Small volume syringe with writing portion |
| US20120022447A1 (en) * | 2010-07-23 | 2012-01-26 | Oliver Richard B | Multi-Chambered Retractable Safety Syringe |
| CN102397603A (en) * | 2010-09-16 | 2012-04-04 | 无锡市宇寿医疗器械股份有限公司 | Safety syringe for retracting needle point by depending on vacuum negative pressure |
| CN102698346A (en) * | 2012-06-30 | 2012-10-03 | 蔡根顺 | Air-pressure-type retraction self-destruction syringe |
| CN203123195U (en) * | 2013-02-21 | 2013-08-14 | 无锡星创生物技术有限公司 | Needle tube device for retractable containing type syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140827 |