Patent · US Active

Stent made of nitinol having improved axial bending stiffness and associated production method

US8157859B2 · kind B2 · utility

0Cited by

3References

8Claims

0Family size

Assignee

BIOTRONIK VI Patent AG · CH

Inventors

Daniel Lootz · Rostock, DE
Bernd Block · Erlangen, DE

Key dates

Filing date	Oct 22, 2008
Grant date	Apr 17, 2012
Priority date	—
Expiry date	Aug 15, 2029

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F2250/0042
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A stent made of nitinol having improved axial or radial stiffness, the stent having a support structure which comprises peripheral struts around the circumference, wherein the peripheral struts are linked to one another in the axial direction via connection struts. The support structure may assume a first compressed state and a second expanded state. The nitinol is in the support structure in a martensitic microstructure in the compressed state and largely in an austenitic microstructure in the second expanded state. One or more support structure sections, however, are entirely or partially in a martensitic microstructure in the second expanded state.

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