| 主权项 |
1. A software program, stored in a non-transistory computer media of a programmable micro-controller, for controlling a patient lift which comprises:
a base having a front side and a back side; a first wheel, a second wheel, a third wheel, and a fourth wheel mechanically connected to four corners of said base, wherein said third wheel and fourth wheel are mechanically connected to said backside of said base and electrically connected to a first motor and a second motor respectively, and wherein said first wheel and said second wheel are caster mechanically connected to said front side of said base; a first extendable leg and a second extendable leg mechanically connected to said base, wherein said first extendable leg and said second extendable leg configured to extend or withdraw from said front side of said base; a third motor mechanically connected to said first extendable leg and said second extendable leg in order to cause said first extendable leg and said second extendable leg extend outward or withdraw from said front side of said base through openings located on said front side of said base; a fifth wheel mechanically connected to said first extendable leg and a sixth wheel mechanically connected to said second extendable leg, wherein fifth wheel and said sixth wheel are caster wheels configured to swivel and change direction under a direction of a user when moving; a first mast and a second mast whose bottom sides mechanically connected to said back side of said base; a lever connected to said first mast and second mast on top sides opposite to said bottom sides; a three-prong hanger mechanically connected to said lever; a rotator connected to said lever and said three-prong hanger, said rotator configured to facilitate said three-prong hanger to rotate around a vertical axis; a fourth motor coupled to said rotator operable to cause said rotator to rotate; a first cable, a second cable, and a third cable connected to each prong of said three-prong hanger respectively, wherein said first cable, said second cable configured to operate simultaneously and said third cable are configured to extend or withdraw independently of said first cable and said second cable; a sling assembly connected to said third cable at a location between the patient's two legs, to said first cable at the patient's left shoulder, and to said second cable at the patient's right shoulder; a foldable chair mechanically connected to said first and second mast, wherein said foldable chair has a back portion and a support portion configured to support a patient, said back portion is mechanically connected to said first mast and said support portion configured to fold up into a rest position coincided with said back portion; a removable fifth motor mechanically connected between said first mast and said base, wherein one end of said removable fifth motor is fixedly connected to said first mast and said support portion of said foldable chair and the other end of said removable fifth motor is removably connected to said base so as said fifth motor is rested horizontally to said base when said patient lift is folded in an unused state; a first pulley mechanically coupled to said first cable and said second cable; a sixth motor, mechanically connected to said first pulley, operable to control said first cable and second cable simultaneously; a second pulley assembly mechanically coupled to said third cable; a seventh motor, mechanically connected to said second pulley, operable to control said third cable; a handle connected to said rear end of said base, wherein said handle comprising a control panel for controlling the operation of said first motor, said second motor, said third motor, said fourth motor, said fifth motor, said sixth motor, and said seventh motor; and a switch box electrically connected to said motor for switching between an automatic mode and manual mode, wherein said automatic mode of said patient lift is controlled by said control panel comprising said programmable micro-controller, said software program, when executed by said programmable micro-controller, performing the following steps: receiving instruction commands from a user; if a completion command is not received, continue to receive said instruction commands and wait for said completion command; if said completion command is received, interpret said instruction commands and perform said instruction commands, said instruction commands comprise: moving a patient from a first recumbent position in a first location to a second recumbent position in a second location; moving said patient from said first recumbent position in said first location to a second seated position in said second location; moving said patient from a first seated position in said first location to said second recumbent position in said second location; moving said patient from said first seated position in said first location to a second seated position in said second location. |
