They do take a little care to start with. When you pull back there are two sets of ridges on the case, put your fingers on these and make sure you feel a click and see the centre locked into place. Then with the tubing held to the side (assuming you have pealed the cover off the patch and removed the needle cover), press flat onto skin and with two finger press the two side indents (at 90 degrees to the ridges). It should then fire correctly.Thank you.
Love the pump, but am struggling with inserting the auto soft 90 cannulas. First one at the hospital went in fine, but came to put a new one in yesterday and despite doing exactly the same, they kept not being fully released from the insertion device. Any tips, apart from trying the steel cannulas?