Memory option card having predetermined number of activation/deactivation codes for selectively activating and deactivating option functions for a medical device

A medical device adaptable for performing a number of functions, comprising:

• a first memory store for prestoring a number of programs or routines each for performing one of said functions;
• and
• a port for accepting a token, said token having a memory for storing data including multiple codes at least one of which is adaptable to selectively enable and disable a selective one of said programs or routines stored in said first memory store;
• a second memory store for storing data that provides an indication of the respective operational status of said functions;
• wherein to enable and disable said particular prestored function in a selected mode, upon insertion of said token into said port, a corresponding one of said codes stored in said token is provided to said second memory store to indicate said particular prestored function should be selectively enabled and disabled, said particular prestored function in said device thereafter remaining in the selected mode after said token is removed from said port.

A multi-functional medical device, comprising:

• processor means;
• memory means for prestoring a number of programs or routines for performing a corresponding number of functions, at least one of said functions being an optional function selectable to be operable at the time said device was first shipped;
• an input port for accepting a memory card, said memory card having at least one code stored therein for selectively activating and deactivating said optional function in said device and other devices that have the same optional function prestored therein, said memory card including a count number that determines the number of devices said memory card can activate;
• a bus for interconnecting said processor means, said memory means and said input port;
• wherein, with said memory card inserted into said input port, said one code stored in said memory card is read on power up of said device for selectively activating and deactivating said optional function prestored in said memory means.