Improvement in leaching process for natural rubber latex production of Urethral Foley Catheter

Abstract

Urethral catheters of natural rubber latex were soaked in distilled water with two types of flow water pipes which are at the top of the tank (upwards) and at the bottom of the tank (downwards). The effects of soaking in the extractable protein content and pH water of the urethral catheter according the time were investigated. Design downwards of flow water pipe was believed to be effective in reducing the extractable protein content by leaching out the extractable from NRL. Results showed that extractable protein content reduced with increasing time, but the amount of EP will increase when the urethral catheters soaking in water too long in the water contains the EP. Protein content was reduced, especially when the pH of the solution was 7 and the direction of flow water pipe is