IT1253524B - Syringe with retractable needle having an automatic mechanism - Google Patents

Syringe with retractable needle having an automatic mechanism

Info

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
Application number
ITPT910033A
Other languages
Italian (it)
Inventor
Alessandro Pasquini
Original Assignee
Alessandro Pasquini
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alessandro Pasquini filed Critical Alessandro Pasquini
Priority to ITPT910033A priority Critical patent/IT1253524B/en
Publication of ITPT910033A0 publication Critical patent/ITPT910033A0/en
Publication of ITPT910033A1 publication Critical patent/ITPT910033A1/en
Application granted granted Critical
Publication of IT1253524B publication Critical patent/IT1253524B/en

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  • 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>
ITPT910033A 1991-12-12 1991-12-12 Syringe with retractable needle having an automatic mechanism IT1253524B (en)

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)

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