DISPOSABLE APPARATUS FOR CIRCLE ABSORPTION SYSTEM

• US 3,835,627 A
• Filed: 01/31/1973
• Issued: 09/17/1974
• Est. Priority Date: 04/07/1971
• Status: Expired due to Term

• Current Assignee: Gale E. Dryden
• Original Assignee: Gale E. Dryden
• Inventors: Dryden, Gale E.
• Primary Examiner(s): Hart, Charles N.
• Application Number:
  US05/328,311
• Time in Patent Office: 594 Days
• Field of Search: 55/68,74,387,388,389
• US Class Current: 96/151
• CPC Class Codes: A61M 16/22 Carbon dioxide-absorbing devices ; Other means for removing carbon dioxidecartridges with absorbing substances for respiratory apparatus A62B19/00
• CPC Class Codes: B01D 2257/504 Carbon dioxide
• CPC Class Codes: B01D 2259/40084 by exchanging used adsorbents with fresh adsorbents
• CPC Class Codes: B01D 2259/4533 for medical purposes
• CPC Class Codes: B01D 2259/455 for transportable use
• CPC Class Codes: B01D 53/0415 Beds in cartridges
• CPC Class Codes: B01D 53/0446 Means for feeding or distributing gases
• CPC Class Codes: Y02C 20/40 of CO2

Abstract

A circle absorption system for anesthesia, including a gas machine, a carbon dioxide absorbing canister, a gas supply hose thereto, rebreathing hoses and a mask connected thereto, absorbing medium therein, and a four way coupling having a pair of one way directional valves, a bleed valve and an outlet for receiving a rebreathing bag. The canister is rectangular in configuration and has recessed fittings for receiving the various hoses. The canister has a plate-groove arrangement whereby the size of chambers within the canister may be readily controlled while allowing quick and easy assembly of the canister.

Claims

1. The combination comprising:

container means including a rectangular case having partition means therein and a lid cooperating with said partition means to define first, second, and third chambers in said case, said second chamber being adjacent to said first and third chambers, a first inlet fitting in said contaiNer means communicating with said first chamber, a first outlet fitting in said container means communicating with said third chamber, an absorbent material for carbon dioxide disposed in said second chamber, and said first chamber being isolated in said case with respect to said third chamber except for communication through said absorbent material in said second chamber, said fittings being recessed;

additional apertured fittings in said container means communicating with at least one of said chambers therein;

said additional fittings being disposed on a wall opposite said inlet and outlet fittings, said fittings having parallel axes.

2. The combination of claim 1 wherein at least three of said fittings include apertured stems outwardly directed with respect to said container means but terminating substantially in alignment with the respective walls on which said fittings are disposed.

3. The combination comprising:

container means including a rectangular case having partition means therein and a lid cooperating with said partition means to define first, second, and third chambers in said case, said second chamber being adjacent to said first and third chambers, a first inlet fitting in said container means communicating with said first chamber, a first outlet fitting in said container means communicating with said third chamber, an absorbent material for carbon dioxide disposed in said second chamber, and said first chamber being isolated in said case with respect to said third chamber except for communication through said absorbent material in said second chamber, said fittings being recessed;

a four way coupling mounted to said second inlet fitting, said coupling having a fourth chamber with a one way inlet fitting allowing gas to pass only in a direction into said fourth chamber, said coupling having a one way outlet fitting allowing the gas to pass from said fourth chamber into said first chamber, said coupling having a gas bag fitting and a bleed valve.