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.

Abstract: A tracheal cannula for laryngectomized and/or tracheotomized persons includes a cannula tube part, a connector part and at least two supporting wings for fastening a strap. The supporting wings are arranged on the connector part, wherein the connector part includes a first conical part and a second conical part. The first conical part is disposed on the cannula tube part and widens away from the cannula tube part. The second conical part is disposed on the first conical part and widens toward the first conical part.

Abstract: To achieve the object of making available an insertion aid for a voice prosthesis, which insertion aid can be used universally and permits a secure hold on the voice prosthesis, such an insertion aid is proposed comprising a rod-shaped device with a head region arranged at a first end of a rod, said head region comprising a limit stop element for a voice prosthesis and, adjoining this limit stop element, a locking element for a voice prosthesis, wherein a first ring surface is formed between the limit stop element and the locking element, which ring surface is configured extending radially with respect to a longitudinal axis of the rod.

Abstract: The invention relates to a speaking valve, having at least a housing and an actuation means for actuating the speaking valve, the actuation means having a distal pressure surface that has a first partial surface and a second partial surface, the first partial surface having a first average roughness (Ra1), and the second partial surface having a second average roughness (Ra2), the first average roughness and the second average roughness differing by about at least 0.1 ?m.

Abstract: To solve the problem of making available a speech valve for persons who have undergone a laryngectomy or tracheotomy, which speech valve in particular has a long useful life, a speech valve is proposed having a housing with a proximal opening and at least one filter at least partially received in the housing, and with a piston-like valve element, wherein the filter at least partially surrounds the valve element, wherein the valve element is movable on a valve seat, arranged on the proximal opening, in order to produce a closure position and can be returned with a spring action to an open position of the speech valve, and wherein the valve element has a lower end which faces towards the proximal opening and which is assigned to the valve seat in the open position and, with the valve seat, forms a gap through which an air stream can be guided.

Abstract: The invention relates to a cover for a housing of a moisture-heat exchanger for laryngectomized and tracheostomized patients, comprising a cover edge and a number of recesses passing through the cover.

Abstract: The invention relates to a tracheostoma protection device for covering a tracheostoma, comprising an open-cell foam cloth, an adhesive strip and an air-impermeable region arranged distally on the foam cloth and associated with the tracheostoma, the tracheostoma being concealable by means of the air-impermeable region. During use of the tracheostoma protection, the foam cloth can by moved at least to some degree outwardly from a contact surface about the tracheostoma.

Abstract: To achieve the object of making available an insertion aid for a voice prosthesis, which insertion aid can be used universally and permits a secure hold on the voice prosthesis, such an insertion aid is proposed comprising a rod-shaped device with a head region arranged at a first end of a rod, said head region comprising a limit stop element for a voice prosthesis and, adjoining this limit stop element, a locking element for a voice prosthesis, wherein a first ring surface is formed between the limit stop element and the locking element, which ring surface is configured extending radially with respect to a longitudinal axis of the rod.

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.

Abstract: The invention relates to a speaking valve for laryngectomized or tracheotomized persons, comprising a cover part, a housing part, and a filter arranged in the housing part. The cover part comprises a closure part which is arranged on an inner face of the cover part and which faces the filter. The cover part consists of an elastic material, and the closure part closes the speaking valve distally to the filter by deforming at least one region of the cover part. The closure part has a circular shape and has a central part surface which rises starting from a lower end surface of an outer edge to a centrally arranged securing region.

Abstract: To solve the problem of making available a speech valve for persons who have undergone a laryngectomy or tracheotomy, which speech valve in particular has a long useful life, a speech valve is proposed having a housing with a proximal opening and at least one filter at least partially received in the housing, and with a piston-like valve element, wherein the filter at least partially surrounds the valve element, wherein the valve element is movable on a valve seat, arranged on the proximal opening, in order to produce a closure position and can be returned with a spring action to an open position of the speech valve, and wherein the valve element has a lower end which faces towards the proximal opening and which is assigned to the valve seat in the open position and, with the valve seat, forms a gap through which an air stream can be guided.

Abstract: To solve the problem of making available a speech valve for persons who have undergone a laryngectomy or tracheotomy, which speech valve in particular has a long useful life, a speech valve (10) is proposed having a housing (12) with a proximal opening (14) and at least one filter (70) at least partially received in the housing, and with a piston-like valve element (30), wherein the filter at least partially surrounds the valve element, wherein the valve element is movable on a valve seat (32), arranged on the proximal opening, in order to produce a closure position and can be returned with a spring action to an open position of the speech valve, and wherein the valve element has a lower end (38) which faces towards the proximal opening and which is assigned to the valve seat in the open position and, with the valve seat, forms a gap (40) through which an air stream (17a) can be guided.