Patent · US Active

Method for manufacturing a syringe

US7951120B2 · kind B2 · utility

3Cited by

2References

28Claims

0Family size

Assignee

Schott AG · DE

Inventors

Peter Wolbring · Sankt Wendel, DE
Ralph Mosimann · Rothrist, CH
Hanspeter Diem · Herisau, CH

Key dates

Filing date	May 17, 2004
Grant date	May 31, 2011
Priority date	—
Expiry date	Jan 29, 2030

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2005/3139
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A syringe has a syringe barrel into which a plunger stopper is inserted during a manufacturing process. A plunger rod is connected to the plunger stopper, and a backstop for preventing inadvertent removal of the plunger stopper from the syringe barrel is arranged at the proximal end of the syringe barrel. The backstop and the plunger rod are configured to form a combined assembly component which is adapted to be mounted to the syringe barrel in a combined manufacturing step. After mounting the combined assembly component to the syringe barrel, the backstop and the plunger rod are separated to allow conventional use of the syringe.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.