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US 11,878,121 B2Granted
Heat and moisture exchanger with lipped valve plate and grooved valve seat
AssigneeAndreas Fahl Medizintechnik—Vertrieb GmbH
InventorAndreas Fahl
Life of this patent
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Abstract
A heat and moisture exchanger (IO) for tracheostomized or laryn-gectomized patients, having a valve plate and a housing, wherein: the valve plate has a radially surrounding lip, and the housing comprises a valve seat which encloses a distal opening of the housing, the valve seat has a groove for receiving the lip, the valve plate is associated with the distal opening of the housing, and the valve plate can be moved into a closed position in which the lip engages in the groove.
Claims7
A heat and moisture exchanger assembly for tracheotomy patients, comprising:
- at least a valve plate and a housing, and
- a spring element associated with the valve plate,
- wherein the valve plate has a radial circumferential lip,
- wherein the housing has a valve seat that surrounds a distal opening of the housing,
- wherein the valve seat has a rim that encircles the housing,
- wherein the valve seat has a groove for receiving the lip,
- wherein the groove is at least partially located in the rim,
- wherein the valve plate is associated with the distal opening of the housing, and
- wherein the valve plate can be closed, such that the lip engages in the groove,
- enabling a laryngectomized or tracheotomized person to speak, when the valve plate is in a closed position,
- wherein the valve plate has a pin that can be inserted into a pin receiver in the housing,
- wherein the spring element includes a central ring for receiving the pin, and
- wherein the central ring has a slot.
10 more elements
Dependencies are inferred from the claim text.