EP 0961623 A1 19991208 - COLLAPSIBLE PLUNGER TIP AND SYRINGE
Title (en)
COLLAPSIBLE PLUNGER TIP AND SYRINGE
Title (de)
KLAPPBARE KOLBENSPITZE UND INJEKTIONSSPRITZE
Title (fr)
EXTREMITE DE PISTON PLIABLE ET SERINGUE
Publication
Application
Priority
- US 9722247 W 19971204
- US 76635196 A 19961213
Abstract (en)
[origin: WO9825659A1] A blood collection syringe of the present invention minimizes contact of the blood during and after collection with extraneous gases. In a preferred embodiment of a syringe (20) of the present invention, a plunger tip (22) is mounted on a plunger (40) positioned in a syringe barrel (24). The plunger tip (22) includes a hollow sealing member (42) having leading (44) and trailing members (52) with a resilient wall (60) extending therebetween. An interior chamber is defined by the wall (60), the leading (44), and trailing members (52). Circumferential sealing rings extend from the leading and trailing member for sealing engagement with the syringe barrel. At least one slit (66) is formed in and extends through the leading member. When the plunger (40) is fully extended into the syringe barrel (24), the resilient wall (60) collapses so that the leading (44) and trailing members (52) of the plunger tip (22) become positioned near each other at the head of the syringe barrel and the volume of the interior chamber is minimized.
IPC 1-7
IPC 8 full level
A61B 5/15 (2006.01); A61B 5/153 (2006.01); A61M 5/315 (2006.01); A61M 5/31 (2006.01)
CPC (source: EP)
A61B 5/150022 (2013.01); A61B 5/150213 (2013.01); A61B 5/150236 (2013.01); A61B 5/150244 (2013.01); A61B 5/150778 (2013.01); A61B 5/153 (2013.01); A61M 5/31511 (2013.01); A61M 2005/3123 (2013.01); A61M 2005/31506 (2013.01)
Designated contracting state (EPC)
ES FR
DOCDB simple family (publication)
WO 9825659 A1 19980618; AU 5516698 A 19980703; EP 0961623 A1 19991208; EP 0961623 A4 20010905; JP 2001506881 A 20010529
DOCDB simple family (application)
US 9722247 W 19971204; AU 5516698 A 19971204; EP 97951552 A 19971204; JP 52682098 A 19971204