Properties and challenges in materials used as vascular and endovascular devices.

In the last decades, main evolutions in the field of vascular surgery have been correlated to the development of devices allowing more reliable and safe sustainable treatment. First devices that have been proposed were vascular prostheses made of polymeric materials. The second generation of devices was stents made of metals and alloys.

In vitro approach to the dilative behavior of knitted vascular prosthetic grafts.

The purpose of this report is to propose an in vitro approach to predicting the long-term dilative behavior of knitted polyester prosthetic grafts. Various techniques were applied to five warp knitted fabric prosthetic grafts in order to determine the following fabric properties: knitted fabric structure, textile structure, number and respective linear density of threads and strands, and length of yarn in each stitch. Following these investigations, the prosthetic grafts underwent testing to determine specific strength at break, breaking extension, and stress-strain curve.

Mechanisms of rupture of knitted polyester vascular prostheses: an in vitro analysis of virgin prostheses.

Objectives: Previous explant retrieval studies have shown ruptures occurring on the remeshing line and the guide line of two types of warp-knitted grafts. The aim of our study was to characterize the mechanisms these ruptures.

Materials And Methods: We performed an in vitro study of the mechanical and chemical characteristics of virgin prostheses.

My scientific life: 40 years at the College de France.

This article presents a translation into English from an autobiographical document written in French by Jacques Le Magnen. The text contains a full translation of Le Magnen's account of the progression of scientific studies in his laboratory, as well as selected biographical data illustrated by quotes from Le Magnen's text. A complete scientific bibliography is included.