Portable ventilator
First Claim
Patent Images
1. A portable ventilator for providing an air-recipient with compulsory inspiration, comprising:
- at least one compressor for controllably supplying compressed air along an output air path towards the air recipient;
an outlet manifold located along the output air path downstream from the at least one compressor and in direct flow communication therewith; and
a single-expansion-chamber outlet muffler located along the output air path and in direct flow communication with the air-recipient and with the manifold outlet, the muffler and the manifold outlet being configured so that airflow through an inhale outlet port of the muffler is substantially pulse free and a transmission loss, defined as the ratio of sound power generated by the at least one compressor and incident on the outlet muffler to the sound power transmitted by the muffler, is sufficient to deaden the sound power of the at least one compressor.
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Accused Products
Abstract
A portable ventilator for providing an air-recipient with compulsory respiration is provided with an outlet manifold and a single-expansion-chamber muffler configured so that airflow through an inhale outlet port of the muffler is pulse-free and a transmission loss, defined as the ratio of sound power generated by the at least one compressor and incident on the muffler to the sound power transmitted by the muffler, is sufficient to deaden the sound power of the compressor.
40 Citations
30 Claims
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1. A portable ventilator for providing an air-recipient with compulsory inspiration, comprising:
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at least one compressor for controllably supplying compressed air along an output air path towards the air recipient;
an outlet manifold located along the output air path downstream from the at least one compressor and in direct flow communication therewith; and
a single-expansion-chamber outlet muffler located along the output air path and in direct flow communication with the air-recipient and with the manifold outlet, the muffler and the manifold outlet being configured so that airflow through an inhale outlet port of the muffler is substantially pulse free and a transmission loss, defined as the ratio of sound power generated by the at least one compressor and incident on the outlet muffler to the sound power transmitted by the muffler, is sufficient to deaden the sound power of the at least one compressor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A portable ventilator, comprising:
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spaced front and back end plates;
at least one compressor located between the front and back end plates and operative to generate airflow along a path;
an inlet manifold/muffler assembly provided in the back panel and configured to be traversed by incoming air in response to actuation of the at least one compressor; and
an outlet manifold/muffler assembly coupled to the front panel and traversed by air flow directed towards an recipient, the inlet and outlet manifold/muffler assemblies having each a single-chamber muffler and an inlet opening located upstream from and in direct flow communication with a respective single-chamber muffler, wherein the inlet and outlet manifold/muffler assemblies are configured to decrease an acoustic signal generated by the at least one compressor along upstream and downstream ends of the path and to provide smooth constant airflow to the air recipient. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A kit for providing compulsory respiration to an air recipient, comprising a portable ventilator provided with:
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at least one compressor operative to provide airflow towards the at least one air recipient, spaced inlet and outlet manifold/muffler assemblies located along an air path and having each a single-chamber muffler and an inlet opening located upstream from and in direct flow communication with a respective single-chamber muffler, wherein the inlet and outlet manifold/muffler assemblies are configured to decrease an acoustic signal generated by the at least one compressor along upstream and downstream ends of the path and to provide smooth constant airflow to the air recipient; and
a disposable air conveying tubing providing flow communication between the air recipient and the portable ventilator, the disposable air conveying tubing being externally attachable to an outlet port of the single-chamber muffler of the outlet manifold/muffler assembly and traversed by the smooth, constant airflow. - View Dependent Claims (26, 27, 28, 29, 30)
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Specification