Method and Device for Modification of Implants and Artificial Veins Made of PET Polymer

Publication Number: SI22608A
Application Date: 18. 10. 2007
Assignee/Applicant: Jožef Stefan Institute [SI]
Inventor: Uroš Cvelbar, Ita Junkar, Miran Mozetič, Simona Strnad, Alenka Vesel
Title: Metoda in naprava za modifikacijo implantatov in umetnih žil iz PET polimera [SL], Method and Device for Modification of Implants and Artificial Veins Made of PET Polymer [EN]
Description: The subject of invention is a method and device for treatment of the interior surface of a tube made of a polyethyleneterephtalate (PET) polymer which is used for implants into live organisms, e.g. artificial veins. The procedure comprises laying the polymer implant or artificial vein into a vacuum chamber, evacuation of the system and treatment with neutral oxygen atoms. A dose of atoms received by the artificial vein amounts to between 10 exp 18 m exp (-2) and 10 exp 26 m exp (-2), yet preferentially between 10 exp 20 m exp (-2) and 10 exp 22 m exp (-2). This kind of treatment enables saturation of the artificial vein with polar functional groups, which leads to the increase of the surface energy of PET material and, consequently, to the improvement of adhesion of biocompatible coatings. The subject of the invention is also a device which enables such kind of treatment.
Drawings:
Category: Physical Sciences
Technology application codes: Physical and exact sciences
Market application codes: Medical / health related
www: https://worldwide.espacenet.com/patent/search/family/040229684/publication/SI22608A?q=si22608
Patent offices: UIL RS

 

Extended patent application

Publication Number: WO2009051567A3
Application Date: 1. 10. 2008
Assignee/Applicant: Uroš Cvelbar [SI], Jožef Stefan Institute [SI], Ita Junkar [SI], Miran Mozetič [SI], Simona Strnad [SI], Alenka Vesel [SI]
Inventor: Uroš Cvelbar, Ita Junkar, Miran Mozetič, Simona Strnad, Alenka Vesel
Title: Method And Device For The Modification Of Implants And Synthetic Blood Vessels
www: https://worldwide.espacenet.com/patent/search/family/040229684/publication/WO2009051567A3?q=WO2009051567A3