×

Anesthetic system with multiple valve-controlled bellows

  • US 5,769,072 A
  • Filed: 03/18/1997
  • Issued: 06/23/1998
  • Est. Priority Date: 03/20/1996
  • Status: Expired due to Fees
First Claim
Patent Images

1. An anesthetic system comprising:

  • an inspiratory line adapted for carrying breathing gas containing an anesthetic to a lung system, an expiratory line adapted for carrying expired breathing gas from a lung system;

    a ventilator unit having an inlet for receiving at least a portion of said breathing gas and for delivering said at least a portion of said breathing gas to said inspiratory line, and an outlet for removing expired breathing gas carried in said expiratory line;

    a gas reservoir comprising at least two volume variable gas receptacles connected to said outlet via a first valve system and connected to said inlet via a second valve system for controlling a direction of flow of said breathing gas;

    regulatory means acting on said volume variable gas receptacles for alternatingly emptying one of said volume-variable gas receptacles at a time for supplying expired breathing gas to said inlet and for simultaneously collecting expired breathing gas from said outlet in another of said volume variable gas receptacles; and

    filter means for removing at least one gaseous pollutant from said expired breathing gas before said expired breathing gas is returned to said inlet.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×