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THE HUMPHREY ADE-CIRCLE system
and "Free-Ox" Anaesthetic Machine
LOW-FLOW and free oxygen anaesthesia

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Welcome to our EXCITING UPGRADED Website.

This site relates only to the products "The Humphrey ADE-circle anaesthetic breathing system" and the "Free-Ox" anaesthetic machine.

Note: THIS IS OUR ONLY WEBSITE. Others with the same or similar name are NOT associated with this business.

Enjoy browsing through it. Those in teaching environments may download the information on this website provided permission is sought first from Dr David Humphrey (david@anaequip.com) and it is not used in breach of any copyright that may exist.

Date: May 2010

Anaequip - manufacturers of anaesthetic equipment for medical, dental & veterinary use

The Humphrey ADE-circle anaesthetic breathing system

The Humphrey ADE-circle anaesthetic breathing system The Humphrey ADE-circle anaesthetic breathing system

The Humphrey ADE-circle anaesthetic breathing system is a unique multipurpose anaesthetic breathing system for adults, children and veterinary used with or without a recycling soda lime canister absorber.

  • It has won notable Design and Engineering Awards.
  • It combines into a single "easy-to-use" system the advantages of the T-piece, Mini-Lack, Lack, Bain and circle systems but without any of their disadvantages.
  • It is even more efficient due to the innovative and unique 4-phase exhaust valve. This new design automatically preserves all useful gases within the system while eliminating all unwanted gas.
  • It is easy to use in any mode. Its simple lever mechanism switches from spontaneous respiration to a ventilator mode without any other adjustment.  
  • In any of the three modes of use for spontaneous, manual or controlled ventilation, it is highly efficient in using much lower fresh gas flows (generally around 500 ml/min). Up to 80% savings are possible compared to fresh gas flows used with the Bain or T-piece systems.
  • As it weighs only 3kg, it is available World Wide by post.

The Humphrey "Free-Ox" anaesthetic machine

The Humphrey "Free-Ox" anaesthetic machine

The Humphrey "Free-Ox" anaesthetic machine is designed as a complete anaesthetic machine to provide the necessary high quality equipment for good anaesthesia in less sophisticated environments. It combines with an oxygen concentrator which provides unlimited oxygen from air. As no oxygen cylinders are required, this is a simple cost-effective "plug-in-and-go" machine. Combined with a Humphrey ADE-circle anaesthetic breathing system which is included, running costs are cut to a minimum.

The machine splits into four components which are available separately.

  • The top as a separate independent portable table top unit.
  • The middle part is a useful drawer to store endo-tracheal tubes, different sizes of reservoir bags and other essential items.
  • The trolley has large wheels for a smooth action when moved from theatre to X-ray or other location.
  • The DeVilbiss oxygen concentrator supplied is a "top-of-the-range" model known for its reliability. It can supply oxygen to two anaesthetic machines or used for oxygen therapy.

The "Free-Ox" machine is only available in Southern Africa and the UK.