Respiratory flow sensor
OwnerHarri Friberg, Jakob Daescherinventors
Life of this patent
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Abstract
The invention relates to a respiratory flow sensor comprising a flow pipe, which has a flow channel and, on the free ends thereof, hose connections for hoses, comprising a cover flap, which is arranged in the flow channel and divides the flow channel into a first flow channel portion and into a second flow channel portion, and comprising connections, which lead into the flow channel on both sides of the cover flap and serve for the reduction of the differential pressure created by the cover flap. Provision is made in the flow channel for a water drainage device, which comprises drainage grooves. The cover flap has a hinge region, which is formed by a first slot and a second slot, which is embodied in an H-shaped manner.
Claims16
A respiratory flow sensor, comprising:
- a flow pipe including a flow channel and a first and a second end of the flow pipe;
- a cover flap, arranged in the flow channel, which divides the flow channel into a first flow channel section and a second flow channel section, wherein the cover flap includes a hinge region that includes a first slot and at least one second slot, having an H-shape, and at least one lateral slot adjacent to the at least one second slot;
- and
- a first connection and a second connection connected to the flow pipe, the first connection leading into the first flow channel section and the second connection leading into the second flow channel section, the first and second connections configured to reduce a pressure differential created by the cover flap during operation of the respiratory flow sensor,
- wherein a shape of each of the flow channel sections is symmetrically defined by a curve or is symmetrically defined by a cross section that increases in a direction away from the cover flap.
A respiratory flow sensor comprising:
- a flow pipe including a flow channel and a first and a second end of the flow pipe;
- a cover flap, arranged in the flow channel, which divides the flow channel into a first flow channel section and a second flow channel section, wherein the cover flap includes a hinge region that includes a first slot and at least one second slot, having an H-shape, and at least one lateral slot adjacent to the at least one second slot;
- a first and a second connection connected to the flow pipe, the first connection leading into the first flow channel section and the second connection leading into the second flow channel section, the first and second connections configured to reduce a pressure differential created by the cover flap during operation of the respiratory flow sensor;
- and
- at least one stop section arranged in the flow pipe so as to limit a deflection angle of the cover flap within the flow channel.
Dependencies are inferred from the claim text.