Patent · US Expired

Spring loaded implantable drug infusion device

US6645176B1 · kind B1 · utility

43Cited by

35References

24Claims

0Family size

Assignee

Medtronic, Inc. · US

Inventors

Steven R. Christenson · Coon Rapids, US
Reginald D. Robinson · Plymouth, US
Kenneth T. Heruth · Edina, US
James M. Haase · Blaine, US
James E. Randall · Coon Rapids, US
Christian Peclat · Neuchâtel, CH
Manfred K. Luedi · Jacksonville, US

Key dates

Filing date	Apr 28, 2000
Grant date	Nov 11, 2003
Priority date	—
Expiry date	Apr 28, 2020

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M5/14232
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An implantable drug infusion device includes a pump tube for holding a liquid to be pumped. A race is configured to support the tube. A roller assembly is configured to compress the tube against the race at one or more points along the path, and the roller assembly includes at least one roller. A drive assembly drives the roller assembly relative to the tube along the path so as to move the liquid through the tube. A biasing member is operably connected to the at least one roller to bias the at least one roller against the tube.

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