Patent · US Active

Guidewires with improved fatigue life and methods of making the same

US8128579B2 · kind B2 · utility

30Cited by

12References

14Claims

0Family size

Assignee

Boston Scientific Scimed, Inc. · US

Inventors

Hancun Chen · San Ramon, US
Peter Skujins · Laguna Hills, US

Key dates

Filing date	Nov 2, 2007
Grant date	Mar 6, 2012
Priority date	—
Expiry date	Sep 27, 2030

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2025/09133
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A medical device, such as a medical guidewire, having a portion including an inner zone of material and an outer peripheral zone of material surrounding the inner zone of material. The inner zone of material has a first coefficient of thermal expansion and the outer peripheral zone of material has a second coefficient of thermal expansion less than the first coefficient of thermal expansion, wherein at an operating temperature the outer peripheral zone of material opposes expansion of the inner zone of material such that the outer peripheral zone of material exerts a compressive stress on the inner zone of material.

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