CN2533879Y - Syringe with fixed needle - Google Patents
Syringe with fixed needle Download PDFInfo
- Publication number
- CN2533879Y CN2533879Y CN 01280305 CN01280305U CN2533879Y CN 2533879 Y CN2533879 Y CN 2533879Y CN 01280305 CN01280305 CN 01280305 CN 01280305 U CN01280305 U CN 01280305U CN 2533879 Y CN2533879 Y CN 2533879Y
- Authority
- CN
- China
- Prior art keywords
- needle
- syringe
- needle tubing
- piston
- fixed
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides an injector with a fixed needle with the needle fixedly connected on the front end of the needle tube, which settles the disadvantages of needle looseness and fall-off, connector gas leakage and liquid leakage, etc., due to the movable connection of the needle and the needle tube, particularly improves the one-off injector more perfectly. The utility model technologically guarantees one time use of the one-off injector from the needle tube to the needle rather than repeat use, and is characterized by simple structure, convenient for operation, etc.
Description
Technical field: this utility model relates to a kind of medical apparatus.
Background technology: the connected mode of existing syringe clinically and syringe needle is mainly the fit of nipple and pintle, be movable connection, this connected mode is for the real necessity that belongs to of the person that need take off the syringe needle in the operating process, but most operations do not need to take off syringe needle, and movable connection can occur such as syringe needle become flexible, come off, interface gas leakage, leakage and may pollute shortcoming such as medicinal liquid by interface.Particularly nowadays a large amount of disposable syringes that use, though this kind disposable syringe can guarantee that needle tubing is not recycled and can not guarantee that used syringe needle no longer is repeated to use, do not have complete disposable mouthful.
Summary of the invention: the purpose of this utility model is exactly to provide a kind of syringe with fixed needle in order to overcome above-mentioned deficiency, and the syringe of described band fixed needle is exactly that pointer head and needle tubing are fixed together.The syringe needle tube chamber communicates with needle tubing.The utlity model has characteristics such as simple in structure, easy to operate.
Description of drawings:
Fig. 1, this utility model embodiment 1 structural representation.
Fig. 2, this utility model embodiment 2 structural representations.
Fig. 3, this utility model embodiment 3 structural representations.
The specific embodiment:
Contrast Fig. 1, this utility model comprises needle tubing 1, syringe needle 2, piston 3 parts such as grade, syringe needle 2 is fixed in the front end of needle tubing 1.
Contrast Fig. 2, needle tubing 1 is fixed together with syringe needle 2.Be provided with one at the rear portion of needle tubing 1 and stop member, described prevention member is to expand pipe 4, and is located at and expands the ring-type excrescence 5 of pipe 4 the insides.Postmedian at piston 3 is provided with by the resistance member, and described is some ring-shaped distributed elasticity cards 6 by the resistance member, and being provided with the purpose that stops member and hindered member on needle tubing and piston is to guarantee the disposable use of syringe technically.Because when piston inject the operation finish after, elasticity card 6 be stuck in outthrust 5 on, piston can not pumpback.
Contrast Fig. 3, needle tubing 1 is fixed together with syringe needle 2, the front end of needle tubing 1 is provided with the prevention member, described prevention member is the cavity 7 and the ring-type excrescence 8 of needle tubing and syringe needle connection, be provided with by the resistance member at the front end of piston, described is taper elasticity card 9 by the resistance member, when piston is injected after operation finishes, taper elasticity card 9 is stuck in cavity 7 the insides can not pumpback, thereby determines that this syringe can only disposablely use.
Claims (3)
1, a kind of syringe with fixed needle comprises needle tubing (1), and syringe needle (2) and piston (3) two parts is characterized in that syringe needle (2) is fixed in the front end of needle tubing (1).
2, the syringe of band fixed needle according to claim 1, it is characterized in that being provided with the prevention member at the rear portion of needle tubing (1), the postmedian of piston (3) is provided with by the resistance member, described prevention member is the portion of expanding (4) of needle tubing (1) rear end and the ring-type excrescence (5) that is located at the portion of expanding (4) the inside, and described is some ring-shaped distributed elasticity cards (6) by the resistance member.
3, the syringe of band fixed needle according to claim 1 is characterized in that being provided with the prevention member at the front end of needle tubing (1), and the front end of piston (3) is provided with by the resistance member.Described prevention member is the cavity (7) and the ring-type excrescence (8) of needle tubing (1) and syringe needle (2) connection, and described is taper elasticity card (9) by the resistance member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01280305 CN2533879Y (en) | 2001-12-25 | 2001-12-25 | Syringe with fixed needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01280305 CN2533879Y (en) | 2001-12-25 | 2001-12-25 | Syringe with fixed needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2533879Y true CN2533879Y (en) | 2003-02-05 |
Family
ID=33683253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01280305 Expired - Fee Related CN2533879Y (en) | 2001-12-25 | 2001-12-25 | Syringe with fixed needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2533879Y (en) |
-
2001
- 2001-12-25 CN CN 01280305 patent/CN2533879Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |