CN202497555U - Cylindrical shell - Google Patents
Cylindrical shell Download PDFInfo
- Publication number
- CN202497555U CN202497555U CN2012200673718U CN201220067371U CN202497555U CN 202497555 U CN202497555 U CN 202497555U CN 2012200673718 U CN2012200673718 U CN 2012200673718U CN 201220067371 U CN201220067371 U CN 201220067371U CN 202497555 U CN202497555 U CN 202497555U
- Authority
- CN
- China
- Prior art keywords
- piston
- cylindrical shell
- syringe
- cylinder sleeve
- jacket casing
- 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
Links
- 239000007788 liquid Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Disclosed is a disposable cylindrical shell applicable to a syringe, mainly comprising a cylinder sleeve, wherein the size and shape of the cylinder sleeve are similar to that of the cylindrical shell applicable to the conventional syringe; and the inner wall of the cylinder sleeve is provided with concave circles, with the size and shape of the concave circles matched to that of the protruding circles of the syringe piston. When the syringe piston is arranged at the position of the internal concave circles of the cylinder sleeve, the piston is not compressed by the inner wall of the cylinder sleeve and does not generate permanent deformation. It is not easy to appear leakage between the piston and the inner wall of the cylinder sleeve. The cylindrical shell is installed on the syringe and applicable to the clinic.
Description
Technical field this utility model relates to the cylindrical shell of using on a kind of disposable syringe, is a kind of cylindrical shell that has recessed circle specifically.
The cylinder lumen of using on the present disposable syringe of background technology is straight, and cylinder inboard wall does not have recessed circle, is placed with piston in the cylindrical shell; And piston external diameter is greater than cylinder internal diameter, thereby piston receives the compression of cylinder inboard wall, after the long period; Permanent deformation appears in the piston of pressurized, is difficult to rebound fully, at this moment is used for taking out injection liquid; Between piston and cylinder inboard wall, occur leakage easily, influenced the use of syringe.
The purpose of summary of the invention this utility model is exactly in order to solve the problem that above-mentioned cylindrical shell exists, and a kind of novel cylindrical shell that has the recessed circle that matches with the protruding circle of piston is provided.
For reaching this purpose, this utility model is taked following technical scheme:
The main body of this utility model is a jacket casing, the cylindrical shell that the size shape of jacket casing is roughly the same used on the syringe, but recessed circle is arranged on the cavity wall of jacket casing; The protruding circle of the size shape of recessed circle and syringe piston matches, and when the piston in the syringe was pushed into the position of recessed circle of jacket casing, the protruding circle of piston was just charged in the recessed circle of jacket casing; The protruding circle of piston is placed in the recessed circle of jacket casing, and piston no longer receives the compression of jacket casing inwall, places the long period; Permanent deformation can not appear; Like this, during the Syringing medicinal liquid, just leakage can not take place between jacket casing and the piston.
Compare with present injector cartridge, it replaces original cylindrical shell with the jacket casing that has recessed circle, makes the syringe inner carrier permanent deformation can not take place, and leakage can not occur when taking out injection liquid.
Description of drawings Fig. 1 product structure figure
Among the figure: 1, cylindrical shell 11, recessed circle
The main body of specific embodiment this utility model is a jacket casing 1; Cylindrical shell on the roughly the same present syringe of jacket casing 1 size shape; Recessed circle 11 is arranged on jacket casing 1 cavity wall; The protruding circle of recessed circle 11 size shape and syringe piston matches, and when syringe piston is placed on the position of jacket casing 1 indent circle 11, permanent deformation can not take place.
Claims (1)
1. cylindrical shell, main body is jacket casing (1), it is characterized in that: jacket casing (1) cavity wall has recessed circle (11), and the size shape of recessed circle (11) and the protruding circle of syringe piston match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200673718U CN202497555U (en) | 2012-02-21 | 2012-02-21 | Cylindrical shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200673718U CN202497555U (en) | 2012-02-21 | 2012-02-21 | Cylindrical shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202497555U true CN202497555U (en) | 2012-10-24 |
Family
ID=47034186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200673718U Expired - Fee Related CN202497555U (en) | 2012-02-21 | 2012-02-21 | Cylindrical shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202497555U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109350803A (en) * | 2018-11-23 | 2019-02-19 | 江苏康宝医疗器械有限公司 | A kind of injection with low resistance |
-
2012
- 2012-02-21 CN CN2012200673718U patent/CN202497555U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109350803A (en) * | 2018-11-23 | 2019-02-19 | 江苏康宝医疗器械有限公司 | A kind of injection with low resistance |
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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: 20121024 Termination date: 20130221 |