Disposable elastomeric infusion pumps are used for ambulatory nerve block infusion for prolonged analgesic in selected patients population e.g. ambulatory interscalene block. Our bottles hold 250ml and infuse at a rate of 5ml / hr for about 2 days.
Two commonly used concentrations:
250ml 0.2% Ropivacaine (i.e. 500mg Ropivacaine in 250ml) => draw up 100ml of 0.5% Ropivacaine and dilute it with 150ml NS
250ml 0.15% Ropivacaine (i.e. 375ml Ropivacaine in 250ml) => draw up 75ml of 0.5% Ropivacaine and dilute it with 175ml NS
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