| 摘要 |
<p>A device for treating a tissue region is supplied with a separate usage key card (202). The usage key card (202) comprises a storage medium (204), which is formatted to contain an identification code unique to the usage key card (202). The usage key card (202) is adapted to be read by a remote reader (48), to download the identification code for processing by a controller (54) for the device. Processing of the identification code by the controller (54) either enables or disables operation of the device according to prescribed criteria. A viewable image is generated on a display screen (420) that changes in response to processing of the identification code.</p> |
