Override circuit for medical table
AssigneeAmerican Sterilizer Company
InventorFrancis J. Zelina
Life of this patent
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Abstract
A medical table having an override circuit includes control circuits for generating control signals in response to user input. Switches are provided for generating control signals in response to user input. Mechanical actuators, responsive to the control signals, move the medical table. An override circuit electrically isolates the control circuits from the mechanical actuators in response to the generation of control signals by the switches.
Claims9
An override circuit for a medical table, said medical table carrying
- control means for generating first control signals in response to user input;
- and
- means for moving the medical table in response to said first control signals;
- said override circuit comprising:
- switch means for generating second control signals in response to user input;
- and
- circuit means for selectively electrically isolating said first control signals from said means for moving the table and for inputting said second control signals to said means for moving.
An override circuit for a medical table, said medical table carrying:
- control means for generating first control signals in response to user input;
- and
- means for moving the medical table in response to said first control signals;
- said override circuit comprising:
- switch means for generating second control signals in response to user input wherein said switch means includes a plurality of momentary switches;
- and
- circuit means for electrically isolating said control means from said means for moving the table in response to the generation of said second control signals by said switch means and wherein when one of said momentary switches generates said second control signals, said circuit means prevents the remaining momentary switches from generating additional second control signals, said means for moving being responsive to said second control signals.
A method of controlling a medical table, said medical table carrying a first control circuit for producing first control signals for moving the medical table, when the first control circuit fails, said method comprising the steps of:
- manually generating second control signals by operating a plurality of switches for moving the medical table;
- and
- selectively electrically isolating the first control signals of the failed first control circuit.
An override circuit for moving a medical table, said medical table carrying:
- control means for generating first control signals in response to user input;
- and
- means for moving the medical table in response to said first control signals;
- said override circuit comprising:
- switch means for generating second control signals in response to user input;
- circuit means for electrically isolating said control means from said means for moving the table in response to the generation of said second control signals by said switch means and for maintaining electrical isolation after said second control signals cease to be generated.
Dependencies are inferred from the claim text.