Patent · US Active

Drug delivery device with compressible drug reservoir

US10046109B2 · kind B2 · utility

0Cited by

29References

17Claims

0Family size

Assignee

PROGENITY, INC. · US

Inventors

Hans Zou · Windsor, US
Jeff Shimizu · Somers, US
Johan Frederik Dijksman · Weert, NL

Key dates

Filing date	Aug 10, 2010
Grant date	Aug 14, 2018
Priority date	—
Expiry date	Nov 28, 2032

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M31/002
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A drug delivery device (50) is provided comprising a drug reservoir (10) and a piston (11). The drug reservoir (10) is provided for comprising a drug and comprises a flexible wall (22) and a dispensing hole (15) for dispensing the drug into an environment of the drug de delivery device (50). The piston (11) is provide for pressing against the flexible wall (22) to compress the drug reservoir (10) for pushing an amount of the drug through the dispensing hole (15). An adhesion interface (51) between a surface of the piston (11) and the flexible wall (22) prevents sliding between the surface of the piston (11) and the flexible wall (22).

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