Patent · US Expired

Implantable dosing device

US4140122A · kind A · utility

119Cited by

5References

8Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Dieter Kuhl · Möhrendorf, DE
Gunter Luft · Achern, DE

Key dates

Filing date	Jun 2, 1977
Grant date	Feb 20, 1979
Priority date	—
Expiry date	Jun 2, 1997

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2005/14513
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The invention relates to an implantable dosing device for the continuous release of medication in the human or animal body, comprising a medicine reservoir of variable volume and a propellant chamber of variable volume tensionally connected to the medicine reservoir, as well as flow-control means. According to the invention, an electro-osmotic control valve with an ion exchange diaphragm arranged between two porous electrodes is provided for the flow control in such a dosing device.

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