CN100364624C - Disposable self-destroyed syringe needle - Google Patents
Disposable self-destroyed syringe needle Download PDFInfo
- Publication number
- CN100364624C CN100364624C CNB2005100019988A CN200510001998A CN100364624C CN 100364624 C CN100364624 C CN 100364624C CN B2005100019988 A CNB2005100019988 A CN B2005100019988A CN 200510001998 A CN200510001998 A CN 200510001998A CN 100364624 C CN100364624 C CN 100364624C
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- self
- needle
- insertion end
- syringe
- destroyed
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Abstract
A disposable self-destroyed syringe needle comprises a needle end connecting with needle tube and a connection end connecting with needle tube nipple. Said connection end comprises containing edge, inserting end and self-destroyed ring. The inserting end has a tubular structure closely fitting with the inside diameter of needle tube nipple; in the center of inserting end is a drain hole. At the end of inserting end is arranged a rib connecting with the self-destroyed ring which has the same diameter as inserting end. The containing edge is arranged around the inserting end, the opening direction of which is consistent with the inserting end's; the other end of the containing edge is connected with the needle end body. After injection, the self-destroyed ring of needle blocks the injection path; the needle tube and needle head are self locked safely to achieve the self-destroying purpose. It can no longer be used again. The invention has advantages of simple structure, reliable performance, good practicability and so on.
Description
Technical field
The present invention relates to have the injection needles head of self-destroying function, belong to technical field of medical instruments.
Background technology
Along with the progress and the science and technology development of society, disposable syringe replaces reusable syringe comprehensively to be become inevitable.In the prior art, disposable syringe is numerous in variety, structure is different.Can not self-destruction after the usefulness that has, can only artificially limit once and use, thereby bad retailer has an opportunity to take advantage of, with exhausted disposable syringe clean, the packing back sells and uses, because the ineffective superinfection that very easily produces of sterilization; The syringe that has has self-destroying function, but design is reasonable inadequately.And prior art all is that syringe and push rod are improved, and injection needle nearly all is to adopt existing structure.The greatest drawback that existing injection needle exists is: with after simple process can be repeatedly used, the repeated use of injection needle exists secondary pollution and cross infection, even causes serious problems such as death.Chinese patent 02208666.8 " Dispoable medical injection head " is to establish to have reciprocating motion and simultaneously with the compositions such as kinematic pair, fairlead and swing fork of unidirectional rotary motion, have complex structure in adapter sleeve, is difficult to problems such as processing.
Summary of the invention
At the prior art above shortcomings, when getting syringe needle after the object of the present invention is to provide a kind of injection intact, the self-destruction of syringe needle pommel is bad to come off, the syringe needle self-destruction, disconnected and damage the disposable self-destroyed syringe needle of syringe by the self-destruction loop resistance.
Realize above-mentioned purpose, the technological means that the present invention adopts is: disposable self-destroyed syringe needle, form with the link that is connected the syringe nipple by the pin end of needle tubing, connection needle tubing; Described link is that structure is held in interior insertion outsourcing.Comprise containing edge, insertion end and the self-destruction ring of making one; Insertion end is and the close-fitting round tube shape structure of syringe nipple internal diameter that the centre is a liquid outlet; The insertion end end is established rib and is connected the self-destruction ring suitable with the insertion end diameter; Contain along being located at the insertion end periphery, opening direction is consistent with insertion end, and the other end is connected on the pin end body.
Further characteristics are that described rib is the 2-6 root, and link is radially recessed relatively.
Compared to existing technology, the present invention has following advantage:
1. injection finishes, when taking off syringe needle, the self-destruction ring of injection needle connects the rib dialysis of syringe needle insertion end, the self-destruction ring breaks away from the insertion end on pinhead handle, but owing to be provided with the self-destruction ring in the papillary cavity of syringe cylinder end, block the recess of syringe needle end self-destruction ring, the self-destruction loops of syringe needle self-destruction ring and nipple root inner chamber is integrated, the syringe needle self-destruction ring that the dialysis needle handle is inserted behind the body can not enter in the syringe, can not withdraw from outside the papillary cavity again, reaches blocking-up and inaccessible injection passage, reach the purpose of self-destruction, and the complete self-locking of syringe and syringe needle no matter adopt any method all can't reuse, realizes disposable use truly.
2. easily plastic needle cylinder and metal needle are separated, the classification of being convenient to plastics and metal is reclaimed, and helps environmental protection.
3. in the syringe needle end self-destruction ring is set, has fundamentally changed syringe construction.
4. simple in structure, dependable performance has advantages of high practicability, and cost can not increase the burden of consumer a little more than existing common disposable syringe.Help popularizing in an all-round way alternative common disposable syringe, realize the disposable use of real meaning, reach the purpose of injection fully.
Description of drawings
Fig. 1 is an overall structure sketch map of the present invention (partly cuing open).
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is that the B of Fig. 1 is to view.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.As Fig. 1, Fig. 2 and shown in Figure 3, disposable self-destroyed syringe needle is made up of with the link 2 that is connected the needle tubing nipple the pin end 1 of needle tubing, connection needle tubing.Described link 2 is that structure is held in interior insertion outsourcing, comprise the containing of making one along 3, insertion end 4 and self-destruction ring 5; Insertion end 4 is and the close-fitting round tube shape structure of needle tubing nipple internal diameter that the centre is a liquid outlet; Insertion end 4 ends are established rib 6 and are connected the self-destruction ring 5 suitable with insertion end 5 diameters; Containing is located at insertion end 4 peripheries along 3, and opening direction is consistent with insertion end 4, and the other end is connected on pin end 1 body.Self-destruction ring rib 6 is the 2-6 root, evenly is located at the end of insertion end 4, serves as straight with the 3-4 bar.The relative link of rib is radially recessed.
7 is metal needles among the figure, the 8th, and reinforcement.
Adopt disposable self-destroyed syringe needle of the present invention, need to be provided with the supporting use of self-destruction lock ring shape projection with the nipple inner chamber of syringe by the cylindrical shell end, the annular protrusion height is suitable with syringe needle self-destruction circular rabbet.
After the present invention's injection is finished, when taking off syringe needle, because the syringe needle insertion end connects the self-destruction ring by rib, rib is not for bearing easily broken of pulling force, the self-destruction ring of getting its end of pinhead handle will come off, and forever stay in the syringe nipple, fully blocking-up and the self-destruction of inaccessible injection passage pinhead handle.Application class of the present invention is similar to ball point pen principle, piston principle and self-lock mechanism, has fundamentally changed the structure of syringe.Only a little more than existing common disposable syringe, can not increase the burden of consumer from the cost, help popularizing in an all-round way alternative common disposable syringe, realize the disposable use of real meaning, reach the purpose of safety injection.
Claims (2)
1. disposable self-destroyed syringe needle, pin end (1) by needle tubing, connection needle tubing is formed with the link that is connected the syringe nipple (2), it is characterized in that: described link (2) holds structure for interior insertion outsourcing, comprises that the containing of making one is along (3), insertion end (4) and self-destruction ring (5); Insertion end (4) is and the close-fitting round tube shape structure of needle tubing nipple internal diameter that the centre is a liquid outlet; Insertion end (4) end is established rib (6) and is connected the self-destruction ring (5) suitable with insertion end (4) diameter; Contain along (3) and be located at insertion end (4) periphery, opening direction is consistent with insertion end (4), and the other end is connected on pin end (1) body.
2. self-destroyed syringe needle according to claim 1 is characterized in that: described rib (6) is the 2-6 root, and insertion end (4) is radially recessed relatively for rib (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100019988A CN100364624C (en) | 2004-12-25 | 2005-01-17 | Disposable self-destroyed syringe needle |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200420105806.9 | 2004-12-25 | ||
| CN200420105806 | 2004-12-25 | ||
| CNB2005100019988A CN100364624C (en) | 2004-12-25 | 2005-01-17 | Disposable self-destroyed syringe needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1666787A CN1666787A (en) | 2005-09-14 |
| CN100364624C true CN100364624C (en) | 2008-01-30 |
Family
ID=35038169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100019988A Active CN100364624C (en) | 2004-12-25 | 2005-01-17 | Disposable self-destroyed syringe needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100364624C (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994012229A1 (en) * | 1991-04-13 | 1994-06-09 | Merwe Marius V D | Syringe |
| CN2413721Y (en) * | 1999-11-09 | 2001-01-10 | 杨西群 | Self-destroied type disposable syringe |
| WO2003018091A2 (en) * | 2001-08-22 | 2003-03-06 | Sherwood Services Ag | Needle hub assembly |
| CN2640492Y (en) * | 2003-05-09 | 2004-09-15 | 谢先文 | Ok needle of disposable safety syringe |
-
2005
- 2005-01-17 CN CNB2005100019988A patent/CN100364624C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994012229A1 (en) * | 1991-04-13 | 1994-06-09 | Merwe Marius V D | Syringe |
| CN2413721Y (en) * | 1999-11-09 | 2001-01-10 | 杨西群 | Self-destroied type disposable syringe |
| WO2003018091A2 (en) * | 2001-08-22 | 2003-03-06 | Sherwood Services Ag | Needle hub assembly |
| CN2640492Y (en) * | 2003-05-09 | 2004-09-15 | 谢先文 | Ok needle of disposable safety syringe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1666787A (en) | 2005-09-14 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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