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 strokeInfo
- 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
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.
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) |
-
1989
- 1989-05-22 PT PT9062789A patent/PT90627B/en not_active IP Right Cessation
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 |