StandardsMRI COMPATIBLE
With the increasing use of MRI scanners, the strong magnets within these scanners prevent the use of standard anaesthetic machines near the unit, necessitating the purchase of expensive MRI compatible machines. The HUMPHREY ADE-CIRCLE system can circumvent this problem such that standard anaesthetic machines can be used.
As the HUMPHREY ADE system with or without the soda lime canister is made of non-magnetic metals, it is MRI compatible and can be safely placed near the scanner without loss of function (Fig 7).
With a fresh gas hose from the anaesthetic machine placed up to 6 metres away, anaesthetic gases can be fed to the ADE unit from an anaesthetic machine placed outside the magnetic zone. At the ADE-CIRCLE system normal tubing is used to supply anaesthetic gas to and from the patient; conveniently two standard 15mm ADE tubes connected together provide a 3 metre length from the patient to the ADE unit. The set up is simple and cheap; all that is required is the additional purchase of an ADE MRI clamp kit which includes a 6 metre fresh gas connection.