PT90627A - Single use syringe with helical piston rod - unthreading from plunger during delivery stroke - Google Patents

Single use syringe with helical piston rod - unthreading from plunger during delivery stroke

Info

Publication number
PT90627A
PT90627A PT9062789A PT9062789A PT90627A PT 90627 A PT90627 A PT 90627A PT 9062789 A PT9062789 A PT 9062789A PT 9062789 A PT9062789 A PT 9062789A PT 90627 A PT90627 A PT 90627A
Authority
PT
Portugal
Prior art keywords
rod
plunger
unthreading
piston rod
single use
Prior art date
Application number
PT9062789A
Other languages
Portuguese (pt)
Other versions
PT90627B (en
Original Assignee
Olovson Gudmar
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 Olovson Gudmar filed Critical Olovson Gudmar
Priority to PT9062789A priority Critical patent/PT90627B/en
Publication of PT90627A publication Critical patent/PT90627A/en
Publication of PT90627B publication Critical patent/PT90627B/en

Links

Landscapes

  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Coating Apparatus (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

Syringe comprises a barrel with a needle mounted at one end and a plunger and rod reciprocable in the barrel to draw in and eject liquid. There is a connection between rod and plunger which holds them firmly together during filling but which adopts an inactive state on delivery so that the syringe cannot be refilled. Rod and plunger are screw-threaded together and the rod is rotated during its linear movement. The rod pref has a threaded peg fitting a threaded hole in the plunger, and the rod is helical and cooperates at its outer end with a plate rotatably mounted on the rod. Alternatively there is a catch insertable between plunger and rod and formed with two diverging legs.
PT9062789A 1989-05-22 1989-05-22 SYRINGE PT90627B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PT9062789A PT90627B (en) 1989-05-22 1989-05-22 SYRINGE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PT9062789A PT90627B (en) 1989-05-22 1989-05-22 SYRINGE

Publications (2)

Publication Number Publication Date
PT90627A true PT90627A (en) 1991-01-08
PT90627B PT90627B (en) 1995-12-29

Family

ID=20084484

Family Applications (1)

Application Number Title Priority Date Filing Date
PT9062789A PT90627B (en) 1989-05-22 1989-05-22 SYRINGE

Country Status (1)

Country Link
PT (1) PT90627B (en)

Also Published As

Publication number Publication date
PT90627B (en) 1995-12-29

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Legal Events

Date Code Title Description
FG3A Patent granted, date of granting

Effective date: 19950904

NF3A Restitutio in integrum

Effective date: 19980507

MM3A Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20040331