SIZE: 12-26Fr/5、10、15、30、50ml Indwelling or hemostasia urethral catheterization. 1.LUBRICATION: lubricate the latex urethral catheter with medical lubricants before use. Wet the superlubricous catheter with sterile water before use and superlubricous can be achieved without any lubricants. 2.INSERTION: Carefully insert the lubricated catheter into the bladder(normally indicated by urine flow),then a further 3cm 3.WATER FILLING: Hold the valve bush, insert the syringe without needle into the valve and introduce rate4d amount of sterile water.After that, pull softly the catheter outward until bladder is chocked by the inflated balloon. 4.TAKING OUT:When taking out the catheter from the bladder,insert an empty syringe into the valve and let the water flow out naturally,or cut off the shaft for quick drainage of water. 5.RETENTION TIME: The retention time is determined in accordance with the clinical and nursing requirements
