A respiratory valve, comprising a valve housing with a chamber, inlet (21) and respiration (22) openings. The chamber is limited by an arcuated or aslant interior wall section (18) extending from a lower part and into an upper part of the chamber, and is terminated in the upper part of the chamber,
A respiratory valve, comprising a valve housing with a chamber, inlet (21) and respiration (22) openings. The chamber is limited by an arcuated or aslant interior wall section (18) extending from a lower part and into an upper part of the chamber, and is terminated in the upper part of the chamber, under the respiration opening. An outlet opening (23) is provided in the interior wall section. An elongated valve flap (32) in the form of a resilient plate element fixed to the lower part of the chamber terminates in the upper part of chamber. The flap is wide enough to cover the outlet opening, and is adapted to be positioned, in a rest position, in a distance from the interior wall section, and, in a work position, in contact with a part of the interior wall section. In the work position, the flap substantially covers and closes the outlet opening, and establishes a passageway between the inlet and respiration openings.
대표청구항▼
1. Respiratory valve, comprising a valve housing with a chamber, the chamber having an inlet opening and a respiration opening arranged on respective inlet and respiration sides of said chamber, wherein the chamber is limited by an arcuated or aslant interior wall section extending from a lower part
1. Respiratory valve, comprising a valve housing with a chamber, the chamber having an inlet opening and a respiration opening arranged on respective inlet and respiration sides of said chamber, wherein the chamber is limited by an arcuated or aslant interior wall section extending from a lower part of said chamber and into an upper part of said chamber, which interior wall section is terminated in said upper part of said chamber and under the respiration opening, and that the respiratory valve further comprises an outlet opening, said outlet opening having an outlet opening width, said outlet opening being arranged in said interior wall section, and an elongated pliable or movable flap element in the form of a plate element in the form of a plate that extends in a direction of depth of said housing having a lower part connected to said lower part of said chamber, under the outlet opening, which plate element at the outlet opening is sufficiently wide to cover the outlet opening, and being terminated in an upper part of said interior chamber, which plate element is adapted to be positioned, in a rest position, in a distance from said interior wall section, and, in a work position, proximal to a part of said interior wall section, for in the work position substantially to cover and close the outlet opening and to establish a passageway between the respiration opening and inlet opening. 2. Respiratory valve according to claim 1, wherein said inlet opening and said respiration opening are arranged on respective inlet and respiration sides, of said housing situated on opposite sides of the valve flap. 3. Respiratory valve according to claim 1, wherein the plate element is adapted to be resilient or is provided with a return spring arrangement for positioning the plate element in the rest position. 4. Respiratory valve according to claim 1, wherein the valve housing comprises a top wall or a side wall having a part constituting a projection into the upper part of said interior space, which projection does not constitute an obstacle for a movement of the plate element, and which projection extends in a direction of depth of said housing from proximal to the inlet side wall and to a distance from the inlet side wall, which extent approximately corresponds to a distance between said inlet side wall and a point of said termination of said interior wall section in the upper part of said chamber. 5. Respiratory valve according to claim 1, comprising at least one of an inlet conduit arranged at the inlet opening, a respiration conduit arranged at the respiration opening and an outlet conduit arranged at the outlet opening. 6. Respiratory valve according to claim 1, comprising a PEEP valve arranged in communication with the outlet opening. 7. Respiratory valve according to claim 1, wherein said outlet opening is arranged in a central or lower part of said interior wall section. 8. Respiratory valve according to claim 1, wherein at least a part of the valve housing is made from a transparent material for allowing visual observation of the valve flap. 9. Respiratory valve according to claim 1, wherein the valve flap is provided with a marking means to allow visual observation of the valve flap, or a means for detecting a valve flap position. 10. Respiratory valve according to claim 9, wherein the means for allowing visual observation is a coloration providing a contrast to a valve housing colour and a part of the valve housing is made from a transparent material.
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이 특허에 인용된 특허 (7)
Kohnke Ole B. (Vattholma SEX) Ruben Henning (Skodsborg DKX), Anaesthesia-breathing apparatus.
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