Embodiments of the invention provide a suction evacuation system, or smoke evacuation system, for incorporation into hand-held surgical devices. A business transaction between an end user and a financial institution includes sub-transactions between the end user and a vendor. A hanger is formed in the end of the top to allow the package to be suspended or hung from a hook or peg. The messaging frame can include an interface definition that allows only approved messages to be passed between domains, such that the risk of malicious attack is minimized.