Respiratory assistance device

• US 6,814,075 B2
• Filed: 06/25/2003
• Issued: 11/09/2004
• Est. Priority Date: 11/06/2001
• Status: Expired due to Term

• Current Assignee: Georges Boussignac
• Original Assignee: Georges Boussignac
• Inventors: Boussignac, Georges
• Primary Examiner(s): Bennett, Henry
• Assistant Examiner(s): PATEL, MITAL B
• Application Number:
  US10/451,659
• Publication Number:
  US 20040050389A1
• Time in Patent Office: 503 Days
• Field of Search: 128/205.11, 128/204.24, 128/204.25, 128/204.22, 128/911, 128/912, 128/207.16, 128/204.18
• US Class Current: 128/204.24
• CPC Class Codes: A61M 11/06 of the injector type
• CPC Class Codes: A61M 16/12 by mixing different gases
• CPC Class Codes: A61M 16/127 by Venturi effect, i.e. entrainment mixers

Abstract

A respiratory assistance device may include a tube that forms a main channel for connecting a distal end of the tube to a respiratory airway of a patient, such that the main channel connects the respiratory system of the patient to the outside. The device may also include an auxiliary channel, for connecting to a source of breathable gas to blow a ventilating gas stream into the patient'"'"'s respiratory system. This auxiliary channel emerges in the main channel by a distal orifice arranged in front of a distal end of the main channel. A deflecting device may be provided, facing the distal orifice of the auxiliary channel, for deflecting the ventilating breathable gas stream toward the axis of the main channel. Also, a communication device, between the deflecting device and the distal end of the main channel, may be included for opening and closing a passageway.

Claims

1. A respiratory assistance device comprising:

a tube which forms a main channel, said tube for connecting a distal end of the tube to a respiratory airway of a patient such that said main channel connects the respiratory system of said patient to the outside;

at least one auxiliary channel, for connecting to a source of breathable gas to blow a ventilating stream of said breathable gas into said respiratory system, that emerges in said main channel by at least one distal orifice arranged in front of a distal end of the main channel;

deflecting means, provided facing said distal orifice of said auxiliary channel, for deflecting said ventilating breathable gas stream toward the axis of said main channel; and

communication means, between said deflecting means and said distal end of the main channel, for opening and closing a passageway and, when said passageway is open, said communication means form a passage connecting said main channel to the external environment.

2. The device as claimed in claim 1, characterized in that the passage connecting said main channel to the environment has a variable cross section.

3. The device as claimed in claim 2, characterized in that said communication means have a sideways-drilled rotary ring capable of uncovering passages of different diameters.

4. The device as claimed in claim 3, characterized in that said rotary ring is mounted directly on said tube.

5. The device as claimed in claim 3, characterized in that said rotary ring is mounted on a funnel in communication with said main channel.