CN200984373Y - Syringe piston with low-damping - Google Patents
Syringe piston with low-damping Download PDFInfo
- Publication number
- CN200984373Y CN200984373Y CN 200620160266 CN200620160266U CN200984373Y CN 200984373 Y CN200984373 Y CN 200984373Y CN 200620160266 CN200620160266 CN 200620160266 CN 200620160266 U CN200620160266 U CN 200620160266U CN 200984373 Y CN200984373 Y CN 200984373Y
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- CN
- China
- Prior art keywords
- piston
- syringe
- low
- syringe piston
- utility
- 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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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a low-damp syringe piston comprising a piston body and a joint line which is arranged below the outer fringe and inner edge of a ring groove in the bottom periphery, preferably in the middle part of the ring groove. As the joint line position of prior ordinary low-damp syringe piston is altered, the joint line can not contact with the syringe during operation. Therefore the low-damp syringe piston of the utility model has easy machining, stable size, low damp keeping and good sealing performance.
Description
Technical field
This utility model relates to injector for medical purpose, relates in particular to a kind of piston of low resistance syringe.
Background technology
Usually, in the process of lumbar anesthesia, the doctor generally can determine the position that anaesthetic puncture needle enters by the low resistance syringe.In the prior art, glass syringe residual oxirane in ethylene oxide sterilizing that the doctor uses is difficult to distribute, and trend is used the low resistance syringe of plastics now.Yet this low resistance syringe particularly in the processing of its piston, is difficult to guarantee that piston both can keep lower resistance and can have excellent sealing performance in the technical process of its processing.
The utility model content
In order to overcome the defective that existing low resistance syringe piston exists, the purpose of this utility model is to provide a kind of low resistance syringe piston that solves the syringe sealing problem when guaranteeing lower resistance again.
The technical scheme that its technical problem that solves this utility model adopts is: the spue line of this utility model low resistance syringe piston is arranged on below the annular groove exterior rim of bottom periphery, is advisable with the middle part that is positioned at annular groove.
The beneficial effects of the utility model are, because the spue line position of existing common low resistance Buddhist nun's syringe piston is changed, can not contact in the clinical manipulation with syringe cylinder, and the spue line of existing low resistance syringe piston is the near-ring connected in star exterior rim place that it is arranged on bottom periphery, can contact with syringe cylinder during clinical manipulation.Therefore this utility model low resistance syringe piston is processed easily, and dimensionally stable can keep lower resistance and have excellent sealing performance.
Description of drawings
Fig. 1 is the structural representation of this utility model low resistance syringe piston.
Assembling sketch map when Fig. 2 is the use of this utility model low resistance syringe piston.
The specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and in conjunction with the embodiments.
Referring to Fig. 1, this utility model low resistance syringe piston 1 comprises piston only 2 and spue line 3, piston only 2 usefulness silica gel materials are made, be provided with cavity 4 in the middle of it, bottom periphery is provided with annular groove 5, spue line 3 places in the annular groove 5, below annular groove 5 outer rims 6 inner edges, is advisable with the middle part that is positioned at annular groove 5.
Referring to Fig. 2, the piston 1 during use is assemblied in the syringe cylinder 7, drives piston 1 by the slip of injection putter 8 in syringe cylinder 7 and moves.Because the spue line 3 of this utility model low resistance syringe piston 1 is arranged on below annular groove 5 outer rims 6 inner edges, in piston 1 moves, do not produce and contact, thereby piston 1 can not make the appearance of spue line cause the sealing property of syringe and resistance fluctuation to occur because of the fluctuation of processing technique when making assembling with syringe cylinder 7.Also the size that can not make product because of the fluctuation of processing technique has guaranteed the quality stability of low resistance syringe piston to greatest extent along with change.And product rejection can technology controlling and process routinely be processed owing to needn't worry that burr appears in spue line 3, than the easier processing of common low resistance Buddhist nun syringe piston.Because the change of spue line position need not be controlled burr when assembling specially, only generally handles getting final product, and can not worry the influence of burr to sealing.
Claims (2)
1, low resistance syringe piston comprises piston only and spue line, it is characterized in that, spue line is arranged on below the annular groove outer rim inner edge of bottom periphery.
2, low resistance syringe piston as claimed in claim 1 is characterized in that, described spue line is positioned at the middle part of annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620160266 CN200984373Y (en) | 2006-11-20 | 2006-11-20 | Syringe piston with low-damping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620160266 CN200984373Y (en) | 2006-11-20 | 2006-11-20 | Syringe piston with low-damping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200984373Y true CN200984373Y (en) | 2007-12-05 |
Family
ID=38913835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620160266 Expired - Fee Related CN200984373Y (en) | 2006-11-20 | 2006-11-20 | Syringe piston with low-damping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200984373Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116038057A (en) * | 2023-04-03 | 2023-05-02 | 恩平市奥新电子科技有限公司 | Soldering paste smearing device for microphone grille soldering |
-
2006
- 2006-11-20 CN CN 200620160266 patent/CN200984373Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116038057A (en) * | 2023-04-03 | 2023-05-02 | 恩平市奥新电子科技有限公司 | Soldering paste smearing device for microphone grille soldering |
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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 |