If you have had a small area of laminate flooring laid, perhaps in just one room, consider purchasing a portable canister with a shoulder strap. This means that when you are vacuuming the room concerned the canister does not need to touch the floor. Make sure you purchase a quality hard floor tool to use with the cleaner. A vacuum dusting tool allows you to clean narrow areas of laminate without moving furniture. It also allows you to thoroughly clean edges and baseboards.
If you have had laminate flooring laid right throughout your home, look seriously at the option of a central vacuum system. This involves the installation of a large dust tank and vacuum motor in your garage or a closet. Wall inlets are linked to the tank by pipes. The vacuum is activated when you plug the suction tube into one of the inlets. You place extension wands and nozzles on the tube, as with any other vacuum. The benefit is you have no canister to pull around, so the danger of inadvertently damaging your floors is greatly reduced.
A way of dealing with a small area of laminate if you already have a central vacuum system, is to install automatic dustpan inlets. Instead of using the suction hose and hard floor tool to remove dust and dirt from the floor, you sweep it all towards the dustpan inlet using a very soft broom. The inlet is activated using a foot control, and the dust is sucked into the system.
Finally, if you feel you can't stretch the budget to purchase a new vacuum to protect your laminate flooring, take steps to ensure your current one will not cause any damage. As detailed above, purchase a good quality hard floor tool as well as a dusting tool for narrow areas and edges. Place a soft rug under your canister to protect the floor it from any grit or dirt trapped on the wheels.