IT1253524B - Syringe with retractable needle having an automatic mechanism - Google Patents
Syringe with retractable needle having an automatic mechanismInfo
- Publication number
- IT1253524B IT1253524B ITPT910033A ITPT910033A IT1253524B IT 1253524 B IT1253524 B IT 1253524B IT PT910033 A ITPT910033 A IT PT910033A IT PT910033 A ITPT910033 A IT PT910033A IT 1253524 B IT1253524 B IT 1253524B
- Authority
- IT
- Italy
- Prior art keywords
- syringe
- needle
- piston
- injection
- spring
- Prior art date
Links
- 238000002347 injection Methods 0.000 abstract 3
- 239000007924 injection Substances 0.000 abstract 3
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 238000007918 intramuscular administration Methods 0.000 abstract 1
- 238000007920 subcutaneous administration Methods 0.000 abstract 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The subject of the present invention is a syringe for intramuscular, endovenous, subcutaneous or intradermal injections, of customary dimension, having a particular mechanism, on the axis of the injection needle, able to ensure the complete retraction of the needle itself inside the syringe once the fluid has been injected. The retraction of the needle, at the end of the injection, is produced by the extension of a precompressed spring, maintained in this condition, before and during the time of use, by a piston having a head of rectangular cross section, in prismatic coupling with a rotating cylinder. As soon as the piston has reached the bottom zone of the syringe, a shaft connected to the piston itself causes the cylinder to rotate, into the cavity of which the needle-carrying piston completely retracts under the thrust of the spring. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITPT910033A IT1253524B (en) | 1991-12-12 | 1991-12-12 | Syringe with retractable needle having an automatic mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITPT910033A IT1253524B (en) | 1991-12-12 | 1991-12-12 | Syringe with retractable needle having an automatic mechanism |
Publications (3)
Publication Number | Publication Date |
---|---|
ITPT910033A0 ITPT910033A0 (en) | 1991-12-12 |
ITPT910033A1 ITPT910033A1 (en) | 1993-06-12 |
IT1253524B true IT1253524B (en) | 1995-08-08 |
Family
ID=11396985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITPT910033A IT1253524B (en) | 1991-12-12 | 1991-12-12 | Syringe with retractable needle having an automatic mechanism |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1253524B (en) |
-
1991
- 1991-12-12 IT ITPT910033A patent/IT1253524B/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
ITPT910033A1 (en) | 1993-06-12 |
ITPT910033A0 (en) | 1991-12-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted |