Filling arrangement for an anesthetic vaporizer
ApplicationNo. 816087 filed on 03/13/1997
US Classes:128/204.13, Treating agent evaporated from extended surface absorbent (e.g., sponge, fibrous wick, screen, etc.)128/203.12, Means for mixing treating agent with respiratory gas128/204.14Respiratory gas passed over surface of liquid treating agent in reservoir
ExaminersPrimary: Weiss, John G.
Assistant: Srivastava, V.
Attorney, Agent or Firm
Foreign Patent References
International ClassA61M 016/00
AbstractA portable anesthesia machine includes a vaporizer having a combinant chamber for containing a liquid anesthetic agent and a pair of diluent stems extending therein for delivering a carrier gas thereinto and providing a vaporized anesthesia agent therefrom, with a generally arcuately shaped, slotted, baffle covering an orifice in each of the diluent stems and a cotton wick extending along the height of each of a pair of carrier stems. A calibrated knob and piston/cylinder assembly controls flow of carrier gas and diluent gas into and out of the combinant chamber. A flow control manifold allows the connection of a multiple number of carrier gases and calibrated flow of any selected carrier gas into the vaporizer. A well fill port provides a convenient point for filling or draining the combinant chamber.
Field of SearchMeans for mixing treating agent with respiratory gas
Treating agent evaporated from extended surface absorbent (e.g., sponge, fibrous wick, screen, etc.)
Respiratory gas passed over surface of liquid treating agent in reservoir
Means for heating treating agent, respiratory gas, or mixture thereof
Means for supplying anesthetic under patient's control
Means for varying treating agent/respiratory gas ratio
MEANS FOR PASSING RESPIRATORY GAS THROUGH BODY OF LIQUID BEFORE INHALATION