초록 ▼

A vaporizer for vaporizing a liquid anaesthetic has an inlet for a carrier gas, an outlet for the carrier gas and vaporized anaesthetic, a flow channel connecting the inlet to the outlet, a chamber for liquid anaesthetic, a first connection between the flow channel and the chamber, a second connecti

A vaporizer for vaporizing a liquid anaesthetic has an inlet for a carrier gas, an outlet for the carrier gas and vaporized anaesthetic, a flow channel connecting the inlet to the outlet, a chamber for liquid anaesthetic, a first connection between the flow channel and the chamber, a second connection between the flow channel and the chamber downstream from the first connection and a throttle in the flow channel between the first connection and the second connection. The second connection has a conduit, one end of which is immersed in the liquid anaesthetic, and a valve connected to the other end of the conduit so as to increase safety, prevent leakage and erroneous dispensing and allow the use of liquid anaesthetics with a low boiling point. The valve is devised to open when there is a predetermined drop in pressure across the throttle, allowing liquid anaesthetic to be dispensed into the flow channel.

대표청구항 ▼

[ We claim as our invention:] [1.]1. A vaporizer for vaporizing a liquid anaesthetic, comprising:an inlet for carrier gas;an outlet for said carrier gas and vaporized anaesthetic;a flow channel connecting said inlet to said outlet;a chamber containing liquid anaesthetic;a first connection between sa

[ We claim as our invention:] [1.]1. A vaporizer for vaporizing a liquid anaesthetic, comprising:an inlet for carrier gas;an outlet for said carrier gas and vaporized anaesthetic;a flow channel connecting said inlet to said outlet;a chamber containing liquid anaesthetic;a first connection between said flow channel and said chamber;a second connection between said flow channel and said chamber downstream of said first connection;a throttle disposed in said flow channel between said first connection and said second connection;said second connection comprising a conduit having a first end immersed in said liquid anaesthetic in said chamber, and having a second end opposite to said first end; anda valve connected to said second end of said conduit, said valve opening when a predetermined drop in pressure occurs across said throttle to allow liquid anaesthetic to be dispensed from said chamber into said flow channel.