Safety system for a breathing apparatus for delivering an anesthetic agent
AssigneeMaquet Critical Care AB
InventorLars Danielsen
Life of this patent
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Abstract
A safety system for a breathing apparatus for delivery of an anesthetic agent having an anesthetic agent vaporizer having a reservoir for containing a liquid anesthetic agent has a reservoir for containing a liquid medical agent, a port for filling the reservoir with the liquid anesthetic agent, and a sensor device for sensing a filling action of the port. A change of position of a lid covering the port is can be detected, or insertion of a fill vessel into said the port is can be detected. Thus safety of said the equipment is improved by being able to de-pressurize the reservoir before opening a filling valve for communication of the port with the interior of the reservoir.
Claims15
An anesthetic vaporizer for delivery of pressurized anesthetic agent to a breathing apparatus comprising:
- a reservoir containing a liquid anesthetic agent in an interior of said reservoir;
- a filling sensor;
- said reservoir comprising a normally closed refilling port for receiving a filling vessel that, when opened, allows refilling of the reservoir with said liquid anesthetic agent;
- said filling sensor is arranged for sensing a filling at the port and thereupon emit an output signal,
- a computerized control unit configured to receive said output signal and upon receiving said output signal automatically relieve an overpressure in said anesthetic liquid reservoir,
- said filling sensor is further arranged for sensing when the filling at the port is terminated and thereupon emit a second output signal, and
- said computerized control unit is configured to receive said second output signal and upon receiving said second output signal allowing pressurization of said anesthetic liquid reservoir.
A computer program for providing safety at delivery of pressurized anesthetic agent from an anesthetic vaporizer comprising a reservoir for containing a liquid anesthetic agent in an interior of said reservoir and a port for filling said reservoir with said liquid anesthetic agent, and a sensor device, said computer program for processing by a computer comprising a code segment for sensing a filling at said port with said sensor device.
Dependencies are inferred from the claim text.