We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
The Aging Behavior of Polyurethane-based Ureteral Catheters.
- Authors
ONAS, ANDRA MIHAELA; BIRU, IULIANA ELENA; PETCA, AIDA; PETCA, RAZVAN COSMIN
- Abstract
Ureteral catheters, commonly known as double j stents according to their specific shape, are largely used worldwide with good results to assure proper renal drainage and to overpass ureteral obstacles successfully. This study deals with the aging behavior of polyurethane-based urinary catheters, explanted at different time intervals: 22 days, 29 days, three months, and eight months respectively. TGA (Thermogravimetric analyses) tests showed significant differences in the thermal behavior of polyurethane-based material, especially at eight months, where a higher thermostability was noticed. Also, the DSC (Differential Scanning Calorimetry) curves presented different shapes for the samples of polyurethane-based urinary catheters after three months and eight months. FTIR (Fourier-Transform Infrared Spectrometry) spectra gave a detailed picture of the chemical transformation which has occurred within the material at eight months. All the analyses gave an overview of the aging process of polyurethane-based urinary catheters and showed insights into the chemical/physical transformations that the polymeric material suffers from prolonged usage.
- Subjects
AGING; POLYURETHANES; URINARY catheters; THERMOGRAVIMETRY; FOURIER transform infrared spectroscopy
- Publication
Materiale Plastice, 2021, Issue 4, p65
- ISSN
0025-5289
- Publication type
Article
- DOI
10.37358/MP.21.4.5532