| Autor: |
Rudolf Huebner, Rodrigo Lambert Oréfice, Marcos Pinotti, Thabata Coaglio Lucas |
| Rok vydání: |
2009 |
| Předmět: |
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| Zdroj: |
Applied Surface Science. 256:1419-1425 |
| ISSN: |
0169-4332 |
| DOI: |
10.1016/j.apsusc.2009.08.102 |
| Popis: |
Reprocessing of single-use intravascular catheters is a common practice in public health services and hospitals. The determination of safe number of reprocessing cycles before the catheter integrity becomes compromised has been a priority issue. The present paper addresses the evaluating molecular and micro-structural integrity of reprocessed cardiac angiographic catheters. The Fourier Transform Infrared Spectroscopy and Scanning Electron Microscopy were carried out to elucidate morphological changes. The tensile test was performed on catheters to examine changes in bulk characteristics. In this work, samples of catheters were reprocessed until nine times and sterilized by hydrogen peroxide plasma. It was observed that the number of hydrogen-bonded carbonyls groups increased in 0.05 u.a. ( p p = 0.0003) at increasing number of reprocessing cycles, also suggestive of crosslinking in this material. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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