FI951313A - syringe - Google Patents

syringe Download PDF

Info

Publication number
FI951313A
FI951313A FI951313A FI951313A FI951313A FI 951313 A FI951313 A FI 951313A FI 951313 A FI951313 A FI 951313A FI 951313 A FI951313 A FI 951313A FI 951313 A FI951313 A FI 951313A
Authority
FI
Finland
Prior art keywords
plunger
valve lock
valve
outlet
barrel
Prior art date
Application number
FI951313A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI101604B (en
FI101604B1 (en
FI951313A0 (en
Inventor
Seppo Arento
Original Assignee
Astra Ab
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
Priority claimed from FI945574A external-priority patent/FI945574A0/en
Application filed by Astra Ab filed Critical Astra Ab
Priority to FI951313A priority Critical patent/FI101604B1/en
Publication of FI951313A0 publication Critical patent/FI951313A0/en
Publication of FI951313A publication Critical patent/FI951313A/en
Application granted granted Critical
Publication of FI101604B publication Critical patent/FI101604B/en
Publication of FI101604B1 publication Critical patent/FI101604B1/en

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  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The invention relates to a dispensing syringe with an elongated barrel 1 inside which is an elongated plunger 2 with a hollow rod, which can move to and fro in the longitudinal direction of the barrel 1. The end 5 of the plunger 2 and the interior end 6 of the barrel 1 define in between them a substantially sealed chamber 4 for accepting the pharmaceutical substance, into which substance a flowing agent is added through the hollow interior 10 of the plunger 2. The end 5 of the plunger has at least one outlet 7 for the flowing agent. The end 5 of the plunger has a valve lock 3 equipped with at least one closing member 8 for sealing the said outlet 7 in order to form a valve between the interior 10 of the plunger and the chamber 4 by the action of both the valve lock 3 and the end 5 of the plunger. The valve lock 3 has at least one opening 9 situated sideways in relation to the closing member 8 in fluid communication with the chamber 4. The valve lock 3 is at least substantially in the area of the end 5 of the plunger formed from flexible material, which allows the closing member 8 of the valve lock 3 to detach itself from the position closing the outlet 7 by the pressure difference on the different sides of the valve, when the outlet 7 and the opening 9 in the valve lock 3 have a fluid communication between them. <IMAGE>
FI951313A 1994-11-28 1995-03-21 Dispensing syringe FI101604B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI951313A FI101604B1 (en) 1994-11-28 1995-03-21 Dispensing syringe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI945574A FI945574A0 (en) 1994-11-28 1994-11-28 Doseringsanlaeggning
FI951313A FI101604B1 (en) 1994-11-28 1995-03-21 Dispensing syringe

Publications (4)

Publication Number Publication Date
FI951313A0 FI951313A0 (en) 1995-03-21
FI951313A true FI951313A (en) 1996-05-29
FI101604B FI101604B (en) 1998-07-31
FI101604B1 FI101604B1 (en) 1998-07-31

Family

ID=26159841

Family Applications (1)

Application Number Title Priority Date Filing Date
FI951313A FI101604B1 (en) 1994-11-28 1995-03-21 Dispensing syringe

Country Status (1)

Country Link
FI (1) FI101604B1 (en)

Also Published As

Publication number Publication date
FI101604B (en) 1998-07-31
FI101604B1 (en) 1998-07-31
FI951313A0 (en) 1995-03-21

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Legal Events

Date Code Title Description
GB Transfer or assigment of application

Owner name: ASTRA AB