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Plos One : Automated Objective Routine Examination of Optical Quality of Rigid Endoscopes in a Clinical Setting, Volume 8

By Brody, P. James

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Book Id: WPLBN0003944394
Format Type: PDF eBook :
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Reproduction Date: 2015

Title: Plos One : Automated Objective Routine Examination of Optical Quality of Rigid Endoscopes in a Clinical Setting, Volume 8  
Author: Brody, P. James
Volume: Volume 8
Language: English
Subject: Journals, Science, Medical Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary)
Historic
Publication Date:
Publisher: Plos

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Brody, P. J. (n.d.). Plos One : Automated Objective Routine Examination of Optical Quality of Rigid Endoscopes in a Clinical Setting, Volume 8. Retrieved from http://netlibrary.net/


Description
Description : Rigid endoscopes degrade during clinical use due to sterilization, ionizing radiation and mechanical forces. Despite visual checks on functionality at the department of sterilization, surgeons are still confronted with suboptimal instruments as it is difficult to assess this degradation in an objective manner. To guarantee that endoscopes have sufficient optical quality for minimal invasive surgery, an experimental opto-electronic test bench has been developed in order to be used at the department of sterilization. Transmission of illumination fibres and lens contrast values are stored in a database to enable empirical criteria to reject endoscope for further clinical usage or to accept endoscopes after repair. Results of the test bench are given for an eight month period, where a trained operator performed 1599 measurements on 46 different types. Stability of the system, trends in quality of clinical endoscopes, and effect of repair or replacement were assessed. Although the period was too short to draw firm conclusions, a slow downwards trend in quality of clinically used endoscopes could be observed. Also, endoscopes generally improve in quality after repair or replacement, while endoscope replacement seems to slightly outperform endoscope repair. To optimize the measurement process, a new system is being developed requiring less user interaction and measuring more optical parameters of an endoscope. By commercializing this system, we hope that measurements at different hospitals will give improved insight which acceptance and rejection criteria to use and which factors (usage, cleaning protocol, and brands) determine the economic lifetime of endoscopes.

 

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