Device for the intermittent pulsatory application of liquid pharmaceuticals

Claim 1

A self-contained programmable device for the intermittent pulsatory application of liquid pharmaceuticals with a changeable storage container for the pharmaceutical wherein the storage container is connected to a catheter by a flexible tube operably associated with a motor-driven roller pump comprising electronic means for controlling operation of the pump including delivery and pause times, said electronic control means having a plurality of control functions and including a microcomputer with program storage means for storing program instructions and pump operating data, keyboard means for inputting and changing said pump operating data in said program storage means, and clock means for providing time and date information to said microcomputer, said electronic control means determining and controlling a cycle plan of the roller pump based on said program instruction, pump operating data and clock means information, said program storage means including program data fields individually addressable by operation of said keyboard means for inputting corresponding pump operating data and program changes, at least one of said data fields including programmable means to permit preprogrammed initiation of a new cycle plan at a predetermined time based on said clock means information, at least one other of said data fields including programmable means to permit preprogrammed temporary deviation in one of said cycle plans at a recurring time interval in the cycle plan based on said clock means information, followed by return to the cycle plan, said first-mentioned cycle plan including any preprogrammed deviation repeating until said predetermined time, said microcomputer constantly comparing data in said program storage means with said time and date information provided by said clock means to detect said predetermined time and begin said new cycle plan including any preprogrammed deviation, a tachometer connected to said microcomputer and operatively connected to said drive motor for monitoring the motor speed and operation of said roller pump to determine any errors.