Arjo Maxi 500 Patient Lift with 2-Point Spreader Bar and Scale. A Non-AC-Powered Patient Lift. BHM Medical Inc., Magog, QC, Canada. Model KM560101, and Model KM560001 - Maxi 500 with 2-Point Spreader Bar, if it was equipped with the optional scale kit 700.05505. || The Maxi 500 is a mobile passive lifter, intended to be used for lifting and transferring of patients in hospitals, nursing homes of other health care facilities.