Auxiliary powered drive for roller pump used in cardiopulmonary bypass operations

Claim 1

For use with a cardiopulmonary perfusion console having an upwardly facing roller pump provided with a central, exposed rotor, an auxiliary power drive system for rotating the rotor of the roller pump during cardiopulmonary bypass operations to assure continued, powered, non-manual operation of the pump for extended periods of time beyond the practical endurance of hand rotation thereof at preselected, critical rates, in the event of failure of the normal pump drive, said auxiliary power drive system comprising: a base unit; a reversible electric motor carried by the base unit and provided with a drive shaft extending toward the base unit, said base unit including means engageable with the perfusion console pump and operable to stably support the base unit and the motor thereon in disposition with the motor shaft directly aligned with the rotor, said base unit further including support members having means for complementally engaging failed roller pump and a platform apertured for passage therethrough of said motor drive shaft, said support members being attached to said platform by shiftable means allowing limited transverse movement of said support members with respect to accommodate different sized pumps; the construction and arrangement of the base unit and motor being such that in the event of a pump failure the base unit and motor may simply be lifted from an adjacent storage position and placed directly on the pump; an adapter including means for operatively and drivingly engaging said pump rotor when said base unit is operatively placed on the failed pump; means for operably joining said drive shaft and said adapter and of a length such that the adapter is in proper disposition to drive the pump rotor by mere placement of the base unit and said motor on the failed pump; and means coupled with the motor for permitting selective control of the motor and to effect substantially instantaneous reversal of the direction of rotation thereof.