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A high performance, low cost, regenerator/heat enthalpy exchanger matrix or bed. The bed consist of a matrix of tensioned sheets with flow channels therethrough. The matrix is of the parallel plate type with high porosity, and narrow, uniform, unobstructed channels. The bed is ideal for near room te

A high performance, low cost, regenerator/heat enthalpy exchanger matrix or bed. The bed consist of a matrix of tensioned sheets with flow channels therethrough. The matrix is of the parallel plate type with high porosity, and narrow, uniform, unobstructed channels. The bed is ideal for near room temperature regenerator applications. The elastomer bed regenerative heat transfer structures are suitably used in heat and moisture exchangers which are used on humans to reduce moisture and heat loss during breathing.

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A heat and moisture exchange device for use in a medical artificial ventilation system comprising a housing and an elastomer regenerative heat and moisture exchanger bed disposed in said housing; said housing having an inlet port for communication to a ventilation circuit and an outlet port for comm

A heat and moisture exchange device for use in a medical artificial ventilation system comprising a housing and an elastomer regenerative heat and moisture exchanger bed disposed in said housing; said housing having an inlet port for communication to a ventilation circuit and an outlet port for communication to a patient\s respiratory system, and operatively associated with said bed for directing fluid flow through said bed; said bed including a matrix of stretched elastomer and having flow channels therethrough; said stretched elastomer remaining taut and substantially unflexed during said fluid flow or a pressure drop.