IT1252365B - Syringe having a retractable needle with an automatic mechanism - Google Patents

Syringe having a retractable needle with an automatic mechanism

Info

Publication number
IT1252365B
IT1252365B ITPT910014A ITPT910014A IT1252365B IT 1252365 B IT1252365 B IT 1252365B IT PT910014 A ITPT910014 A IT PT910014A IT PT910014 A ITPT910014 A IT PT910014A IT 1252365 B IT1252365 B IT 1252365B
Authority
IT
Italy
Prior art keywords
needle
syringe
injection
plunger
automatic mechanism
Prior art date
Application number
ITPT910014A
Other languages
Italian (it)
Inventor
Alessandro Pasquini
Original Assignee
Alessandro Pasquini
Danesi Poala
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, Danesi Poala filed Critical Alessandro Pasquini
Priority to ITPT910014A priority Critical patent/IT1252365B/en
Publication of ITPT910014A0 publication Critical patent/ITPT910014A0/en
Publication of ITPT910014A1 publication Critical patent/ITPT910014A1/en
Application granted granted Critical
Publication of IT1252365B publication Critical patent/IT1252365B/en

Links

Landscapes

  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The subject of this invention is a syringe for intramuscular, endovenous, subcutaneous or intradermal injections, of ordinary size, provided with a special mechanism along the axis of the injection needle capable of permitting complete withdrawal of the said needle within the enclosure once the fluid has been injected. Re- entry of the needle after injection is complete is brought about by a tension spring which is held under tension before and during the time it is in use by a small piston (bearing the said needle) operated by compressed air. As soon as the plunger which injects the liquid reaches the bottom of the syringe, a rod mounted within the plunger itself opens the valve of the air tank and draws the needle within the syringe.
ITPT910014A 1991-06-28 1991-06-28 Syringe having a retractable needle with an automatic mechanism IT1252365B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ITPT910014A IT1252365B (en) 1991-06-28 1991-06-28 Syringe having a retractable needle with an automatic mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITPT910014A IT1252365B (en) 1991-06-28 1991-06-28 Syringe having a retractable needle with an automatic mechanism

Publications (3)

Publication Number Publication Date
ITPT910014A0 ITPT910014A0 (en) 1991-06-28
ITPT910014A1 ITPT910014A1 (en) 1992-12-28
IT1252365B true IT1252365B (en) 1995-06-12

Family

ID=11396966

Family Applications (1)

Application Number Title Priority Date Filing Date
ITPT910014A IT1252365B (en) 1991-06-28 1991-06-28 Syringe having a retractable needle with an automatic mechanism

Country Status (1)

Country Link
IT (1) IT1252365B (en)

Also Published As

Publication number Publication date
ITPT910014A1 (en) 1992-12-28
ITPT910014A0 (en) 1991-06-28

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Legal Events

Date Code Title Description
0001 Granted