Patent · US Active

Syringe

US11376369B2 · kind B2 · utility

0Cited by

2References

16Claims

0Family size

Assignee

Galderma Holding SA · CH

Inventors

Anders Holmqvist · Varedo, IT
Max Blomqvist · Uppsala, SE
Jonas Törnsten · Uppsala, SE

Key dates

Filing date	Dec 21, 2016
Grant date	Jul 5, 2022
Priority date	—
Expiry date	Sep 29, 2037

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2205/582
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A syringe including a barrel, a plunger moveably arranged within said barrel, and a plunger rod for driving said plunger. A first engagement member is arranged at the plunger rod, such that a longitudinal movement of the plunger rod yields a rotational movement of said first engagement member. The first engagement member includes a grooved surface. A second engagement member is arranged at the barrel to engage with said grooved surface of the first engagement member, wherein the first engagement member is arranged to move relative to the second engagement member, such that feedback is given to a user as the plunger rod is moved relative to the barrel for driving said plunger. The first engagement member is arranged at said plunger rod with a predetermined play there between.

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