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US 9,283,347 B2Granted
Device for dispensing oxygen for an anesthesia device
AssigneeDrägerwerk AG & Co. KGaA
InventorRalf Heesch
Life of this patent
Estimating the term…
Abstract
A device (10) for dispensing oxygen for an anesthesia device includes a switching element (15) that diverts oxygen between a first gas path (153) and a second gas path (154). The first gas path (153) leads to a patient (27) via a connection and port element. The second gas path (154) leads to a gas tapping port (20) for oxygen or gas insufflation.
Claims18
A dispensing device for dispensing fresh gas, oxygen and anesthetic in an anesthesia device for connection to a patient, the dispensing device comprising:
- an anesthetic evaporator with an inlet and an outlet;
- a device oxygen gas port;
- a mixer with an oxygen port, which is connected to said device oxygen gas port via a fluidic path branch, with a nitrous oxide port and with an air port, wherein nitrous oxide, oxygen and air are mixed in said mixer and wherein mixed gas can reach the inlet of the anesthetic evaporator;
- an oxygen-dispensing and display element, which is connected to said device oxygen gas port via another fluidic path branch and which has an adjusting element for adjusting a rate of flow and which displays the rate of flow;
- a switching element, wherein said switching element is arranged downstream of said oxygen-dispensing and display element;
- a gas tapping port provided for connecting a tube or tube and mask combination for oxygen insufflation;
- a connection and port element for the patient;
- a first gas path;
- and
- a second gas path, wherein said first gas path is arranged downstream of said switching element, said second gas path is arranged downstream of said switching element, said first gas path leads to the inlet of the anesthetic evaporator and from said anesthetic evaporator to said connection and port element for the patient, said second gas path leads to said gas tapping port, said switching element sending oxygen, which is sent from the oxygen-dispensing and display element arranged upstream of said switching element to said switching element, into said first gas path or into said second gas path, and oxygen reaches said connection and port element while flowing through said first gas path after flowing through said anesthetic evaporator and oxygen is available at said gas tapping port during flow through said second gas path, wherein:
- said switching element sends oxygen without overlap either into said first gas path or into said second gas path;
- and
- there is no state of the switching element in which oxygen simultaneously enters said first gas path and said second gas path.
10 more elements
A fresh gas, oxygen and anesthetic dispensing device for an anesthesia device, the dispenser dispensing device comprising:
- an anesthetic evaporator with an inlet and an outlet;
- a dispenser oxygen inlet port;
- a mixer with an oxygen inlet port operatively connected to said dispenser oxygen inlet port via a fluidic path branch, a nitrous oxide inlet port and an air inlet port, wherein nitrous oxide, oxygen and air are mixed in said mixer and the mixed gas is fed from the mixer to the inlet of the anesthetic evaporator;
- an oxygen-dispensing element connected to said dispenser oxygen inlet port via another fluidic path branch and having an adjusting element for adjusting a rate of flow and which displays the rate of flow;
- a switching element arranged downstream of said oxygen-dispensing element;
- a gas tapping port provided for connecting a tube or tube and mask combination for oxygen insufflation;
- a connection and port element for the patient;
- a first gas path;
- and
- a second gas path, said first gas path leading to the inlet of the anesthetic evaporator and said first gas path leading from said anesthetic evaporator to said connection and port element for the patient, said second gas path leading to said gas tapping port, said switching element sending oxygen, which is sent from the oxygen-dispensing element arranged upstream of said switching element to said switching element, either exclusively into said first gas path or exclusively into said second gas path, and oxygen reaches said connection and port element while flowing through said first gas path after flowing through said anesthetic evaporator and oxygen is available at said gas tapping port during flow through said second gas path, wherein said switching element does not send oxygen simultaneously into said first gas path and into said second gas path.
7 more elements
Dependencies are inferred from the claim text.