Anaesthetic apparatus
OwnerColin Dunlopinventor
Life of this patent
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Abstract
The present invention relates to an apparatus for delivering an anaesthetic to human or animal patients. The apparatus comprises an anaesthetic machine which is arranged to mount components of an anaesthetic delivery circuit, and which includes a collector arrangement in the form of a manifold (21) having a plurality of inlets and outlets. The manifold (21) enables a reduction in the number of tubes connecting the various components in an anaesthetic system, which are normally required in prior art anaesthetic machines. The manifold (21) also includes an arrangement (40) which provides a Venturi effect on gas flow, and enables a pressure gauge (18) to be mounted out of a patient breathing circuit. The machine is preferably portable.
Claims17
A connector arrangement for an anaesthetic circuit, comprising a manifold including at least one inlet and a plurality of outlets, the at least one inlet and plurality of outlets being arranged for connection to gas lines in the anaesthetic circuit, whereby to facilitate minimising the extent of gas line components required in the anaesthetic circuit.
An anaesthetic machine comprising a housing including means for mounting components of an anaesthetic delivery system, the housing comprising a base, a back wall and a top wall extending over the base, the base, back wall and top wall forming an enclosure and the means for mounting the components being within the enclosure, whereby any gas lines required to connect the components mounted in the enclosure run within the enclosure.
In an anaesthetic delivery system comprising a vaporiser connectable to an oxygen supply and a patient breathing circuit, for providing a mixture of oxygen and anaesthetic to the patient breathing circuit, and a flush bypass system for bypassing the vaporiser to provide oxygen directly to the patient breathing circuit, a method of avoiding relatively high pressure oxygen being provided back to the vaporiser from the flush bypass system on operation of the flush bypass system, comprising the step of employing a Venturi effect to maintain relatively low pressure in a line from the vaporiser to a connection with the flush bypass system.
In an anaesthetic delivery system comprising a vaporiser connectable to an oxygen supply and a patient breathing circuit, for providing a mixture of oxygen and an anaesthetic to the patient breathing circuit, and a flush bypass system for bypassing the vaporiser to provide oxygen directly to the patient breathing circuit, an arrangement for avoiding relatively high pressure oxygen being provided back to the vaporiser from the flush bypass system on operation of the flush bypass system, the arrangement comprising at a connection between a line from the vaporiser and the flush bypass system, a Venturi arrangement which, when the flush bypass system is actuated, operates to maintain in relatively low pressure in the line from the vaporiser, substantially avoiding high pressure oxygen flowing into that line and back to the vaporiser.
An anaesthetic delivery system, comprising a means for delivering oxygen and anaesthetic, and a pressure gauge mounted to the means for delivering oxygen and anaesthetic, the pressure gauge being mounted before a patient breathing connection.
Dependencies are inferred from the claim text.