Global Patent Index - EP 1318773 A2

EP 1318773 A2 2003-06-18 - IMPLANTABLE PROSTHESIS FOR INTRAVASCULAR APPLICATIONS

Title (en)

IMPLANTABLE PROSTHESIS FOR INTRAVASCULAR APPLICATIONS

Title (de)

IMPLANTIERBARE PROTHESE FÜR INTRAVASKULÄRE ANWENDUNGEN

Title (fr)

PROTHESE IMPLANTABLE POUR APPLICATIONS INTRAVASCULAIRES

Publication

EP 1318773 A2 (DE)

Application

EP 01978143 A

Priority

  • DE 0103528 W
  • DE 10045325 A

Abstract (en)

[origin: WO0222049A2] The invention relates to an implantable prosthesis for intravascular applications, consisting of a flexible prismatic strand of biocompatible material, produced from meshed threads, with a polygonal cross-section (5a, 5b, 5c, 5d, 5e, 5f, 5g, 5h) that is hollow or perforated. Said threads are interconnected in an articulated or rigid manner. The polygonal hollow or perforated cross-section can be configured as a triangle, quadrilateral, pentagon, hexagon, heptagon, or octagon and has adjustable contractions (12b) and/or expandable sections (12a) and/or reinforcing elements. The invention provides an implantable prosthesis which, in comparison to the prior art, has the advantage of an improved crimp and dilation behaviour achieved with a lower usage of material. In addition, the prosthesis has a more favourable stress distribution when used as a stent. The risk of a stent trauma during implantation is thus significantly reduced. The invention enables the advantages of slotted tube prostheses and mesh prostheses to be used to full effect in a medical application. The prosthesis exhibits an extremely high degree of flexibility, both in the longitudinal and radial directions and extreme durability under collapse pressures. The invention substantially promotes, or allows for the first time the use of stents in areas subject to intense transversal forces, such as in the peripheral area and in the ureter and in profusely branched labyrinthine vessels. The inventive prosthesis with a polygonal cross-section can also be produced in a cost-effective, high-quality manner, using known textile technology, for example knitting.

IPC 1-7 (main, further and additional classification)

A61F 2/06

IPC 8 full level (invention and additional information)

A61F 2/06 (2006.01); A61F 2/88 (2006.01)

CPC (invention and additional information)

A61F 2/88 (2013.01); A61F 2230/0054 (2013.01)

Citation (search report)

See references of WO 0222049A2

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

WO 0222049 A2 20020321; WO 0222049 A3 20020808; AU 1036002 A 20020326; DE 10045325 A1 20020404; DE 10193800 D2 20040122; EP 1318773 A2 20030618

INPADOC legal status


2005-10-12 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20050401

2003-06-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20030411

2003-06-18 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2003-06-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL LT LV MK RO SI