Volume-adjustable manual ventilation device
First Claim
1. A manually operable volume-adjustable ventilation device, comprising:
- a reservoir with an inlet mechanism, an outlet mechanism, and a volume adjuster configured to move a volume adjustment limit of the reservoir and change an expressed maximum volume of the reservoir;
wherein said reservoir comprises a body having a plurality of movable walls defining an enclosed volume;
wherein said reservoir has an uncompressed state and a compressed state;
wherein said walls are movable with respect to each other, such that moving said walls expresses the volume adjustment limit of the reservoir;
wherein said walls are operably connected by movable structures;
wherein a first wall and a second wall rotate about a first axis, and wherein a third wall rotates around a second axis wherein said second axis is substantially orthogonal to said first axis when the reservoir moves from an uncompressed to a compressed state.
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Accused Products
Abstract
Disclosed is a manually operable volume-adjustable ventilation device. The device includes a reservoir with an inlet mechanism, an outlet mechanism, and a volume adjuster configured to move a volume adjustment limit of the reservoir and change an expressed maximum volume of the reservoir. The reservoir has a body having a plurality of movable walls defining an enclosed volume. The reservoir has an uncompressed state and a compressed state. The walls of the reservoir are movable with respect to each other, such that moving the walls expresses the volume adjustment limit of the reservoir. The walls can be operably connected by movable structures configured such that two adjacent walls are configured to rotate around substantially orthogonal axes with respect to each other when the reservoir moves from an uncompressed to a compressed state. In some embodiments, the movable structures can be hinges, such as snap-fit assembly hinges. Methods of ventilating a patient that involve the device are also disclosed.
70 Citations
42 Claims
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1. A manually operable volume-adjustable ventilation device, comprising:
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a reservoir with an inlet mechanism, an outlet mechanism, and a volume adjuster configured to move a volume adjustment limit of the reservoir and change an expressed maximum volume of the reservoir; wherein said reservoir comprises a body having a plurality of movable walls defining an enclosed volume;
wherein said reservoir has an uncompressed state and a compressed state;
wherein said walls are movable with respect to each other, such that moving said walls expresses the volume adjustment limit of the reservoir;
wherein said walls are operably connected by movable structures;
wherein a first wall and a second wall rotate about a first axis, and wherein a third wall rotates around a second axis wherein said second axis is substantially orthogonal to said first axis when the reservoir moves from an uncompressed to a compressed state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method of ventilating a patient, comprising:
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providing a ventilation device comprising a reservoir with an inlet mechanism, an outlet mechanism, and a volume adjuster configured to move a volume adjustment limit of the reservoir and change an expressed maximum volume of the reservoir; wherein said reservoir comprises a body having a plurality of movable walls defining an enclosed volume;
wherein said reservoir has an uncompressed state and a compressed state;
wherein said walls are movable with respect to each other, such that moving said walls expresses the volume adjustment limit of the reservoir;
wherein said walls are operably connected by movable structures;
wherein a first wall and a second wall rotate about a first axis, and wherein a third wall rotates around a second axis wherein said second axis is substantially orthogonal to said first axis when the reservoir moves from an uncompressed to a compressed state;
connecting the inlet of the device to an air or oxygen source;connecting the outlet of the device to a mask or tube configured to interface with a patient'"'"'s airway; and actuating the device from an uncompressed state to a compressed state by applying a force to at least one wall of the device. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification