| US 7,569,027 B2 | ||
| Apparatus for supplying gas at two different pressures | ||
| Takefumi Uesugi, Tokyo (Japan); Daisuke Sano, Tokyo (Japan); Atsuhiko Kasahi, Yokohama (Japan); and Kenji Noda, Tokyo (Japan) | ||
| Assigned to Olympus Corporation, (Japan) | ||
| Filed on Mar. 29, 2005, as Appl. No. 11/91,997. | ||
| Claims priority of application No. 2004-097126 (JP), filed on Mar. 29, 2004; and application No. 2005-082545 (JP), filed on Mar. 22, 2005. | ||
| Prior Publication US 2005/0217727 A1, Oct. 06, 2005 | ||
| Int. Cl. A61M 37/00 (2006.01) | ||
| U.S. Cl. 604—23 | 8 Claims |
| 1. A gas supply apparatus comprising:
a first fitting through which a gas of a first pressure is discharged;
a second fitting through which a gas of a second pressure is discharged;
a first tube having one end to which a first connector connectable to the first fitting is attached and supplying the gas
of the first pressure to a first body cavity of a subject to be medically treated;
a second tube having one end to which a second connector connectable to the second fitting is attached and supplying the gas
of the second pressure to a second body cavity of the subject;
a single gas source supplying a gas used for supply of the gas of the first and second pressures;
a gas supply unit controlling the gas supplied from the gas source to provide both of the first and second fittings with both
of the gases of the first and second pressures, respectively;
a sensor detecting information indicative of a condition of the first connector connected to the first fitting and information
indicative of a condition of the second connector connected to the second fitting;
a determination unit determining whether or not the first connector is correctly connected to the first fitting, determining
whether or not the second connector is correctly connected to the second fitting, determining whether or not the second connector
is connected to the first fitting when determining that the first connector is not connected to the first fitting, and determining
whether or not the first connector is connected to the second fitting when determining that the second connector is not connected
to the second fitting, based on the information from the sensor; and
a gas supply control unit controlling, based on a result determined by the determination unit, the gas supply unit to supply
the gas of the first pressure and the gas of the second pressure; wherein
when the determination unit determines that the first connector is correctly connected to the first fitting, the gas supply
control unit controls the gas supply unit to supply the gas of the first pressure to the first fitting,
when the determination unit determines that the second connector is correctly connected to the second fitting, the gas supply
control unit controls the gas supply unit to supply the gas of the second pressure to the second fitting,
when the determination unit determines that the second connector is connected to the first fitting, the gas supply control
unit controls the gas supply unit to supply the gas of the second pressure to the first fitting, and
when the determination unit determines that the first connector is connected to the second fitting, the gas supply control
unit controls the gas supply unit to supply the gas of the first pressure to the second fitting.
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