Patent ID: 9717878
Date: 2017-08-01
CPC Classifications: A61M

Claim:
1. An anaesthetic apparatus for use in an anaesthetic re-breather circuit, comprising: a conservation arrangement having an accumulator arrangement positioned, in use, between an inhalation part of an anaesthetic re-breather circuit and other downstream components of the anaesthetic re-breather circuit, the inhalation part having an inhalation port and a fresh gas inlet, so that, in use, a fresh gas entering the anaesthetic re-breather circuit must flow from the inhalation part through the accumulator arrangement to the other downstream components of the anaesthetic re-breather circuit before being diluted with a gas already contained in the other downstream components of the anaesthetic re-breather circuit, and a gas already contained in the other downstream components of the anaesthetic re-breather circuit must pass through the accumulator arrangement to reach the inhalation part, wherein the conservation arrangement is arranged to conserve the fresh gas entering the anaesthetic re-breather circuit proximate the inhalation port for delivery undiluted or predominantly undiluted to a patient on inhalation and slow mixing of the fresh gas entering the anaesthetic re-breather circuit with the gas already contained in the anaesthetic re-breather circuit.