RESUSCITATOR

• US 3,796,216 A
• Filed: 04/24/1972
• Issued: 03/12/1974
• Est. Priority Date: 04/24/1972
• Status: Expired due to Term

• Current Assignee: Karl H. Schwarz
• Original Assignee: Karl H. Schwarz
• Inventors: Schwarz, Karl H.
• Primary Examiner(s): Gaudet, Richard A.
• Assistant Examiner(s): Cohen, Lee S.
• Application Number:
  US05/246,869
• Time in Patent Office: 687 Days
• Field of Search: 128/145.7,145.6,145.5,145.8,146.5,146.4,146.3,146,147,205,208-211,145,274 137/102,525.3
• US Class Current: 128/205.13
• CPC Class Codes: A61M 16/208 Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
• CPC Class Codes: A61M 2202/0007 introduced into the body
• CPC Class Codes: A61M 2202/0208 Oxygen
• CPC Class Codes: A61M 2202/03 Gases in liquid phase, e.g. cryogenic liquids
• CPC Class Codes: Y10T 137/2544 Supply and exhaust type

Abstract

A respiratory assisting device for use to support and to reestablish substantially normal breathing when same has been halted or impaired as by immersion or other suffocatory circumstances and including a mask or face piece having an exhalation port in one end of a body member and an inhalation port within the body member and with an aperture between the ports and communicating with the mask and a valve member having a flap portion normally closing the inhalation port and movably to open the inhalation port and close the exhalation port in response to manual pressure on a gas bag mounted on the other end of the body member and which receives gas from a suitable source.

Claims

1. A resuscitator comprising:

a. a mask having a gas supply portion and a peripheral portion, said supply portion including a first wall attached directly to said peripheral portion and containing an inhalation port and a second wall attached directly to said peripheral portion and adjacent to said first wall and containing an exhalation port, said peripheral portion defining a chamber adapted to receive a mouth and nose of a person;

b. said first and second walls defining an aperture therebetween opening directly into said chamber;

c. said supply portion having a gas receiving body adjacent said inhalation port and communicating therewith;

d. means connected to said gas receiving body and operative to selectively deliver gas through said inhalation port and aperture directly into said chamber; and

e. a valve member in said aperture and normally closing said inhalation port and movable within said aperture to close said exhalation port in response to a flow of gas through said inhalation port.

2. a first flap portion within said body member and normally closing said second port and movable between said first named port and said second port;

3. a connecting portion of reduced thickness between said mounting portion and said first flap portion, said connecting portion having one side thereof substantially coplanar with one side of said mounting portion and one side of said first flap portion;

and

4. a second flap portion extending from said mounting portion and normally closing said first port, said second flap being moved to open said first port by flow of gas outwardly from said mask and through said first port.