Breathing-Gas Delivery System With Exhaust Gas Filter Body And Method Of Operating A Breathing-Gas Delivery System
First Claim
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1. A breathing-gas delivery system, comprising:
- a movable partition;
a housing disposed about the movable partition, the housing having a respirator side on a first side of the partition, and having a patient side on a second side of the partition, and the housing having (a) a patient inspiration orifice on the patient side, adaptable to supply breathing-gas to a patient, and (b) a gas exhaust orifice on the patient side; and
a filter body having (a) an inlet connected to the gas exhaust orifice, (b) an outlet connected to a suction line, and (c) a major-through-passage for carrying exhaust gas from the gas exhaust orifice toward the suction line, and wherein the filter body is capable of passing gas from outside the rebreather across the porous barrier of the filter body to the major-through-passage.
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Abstract
Breathing-gas delivery systems and methods are described. In one such system there is a movable partition, a housing and a filter body. The housing is disposed about the movable partition, and thereby provides a respirator side on a first side of the partition, and a patient side on a second side of the partition. The housing also has (a) a patient inspiration orifice on the patient side, which is adaptable to supply breathing-gas to a patient, and (b) a gas exhaust orifice on the patient side.
38 Citations
23 Claims
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1. A breathing-gas delivery system, comprising:
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a movable partition; a housing disposed about the movable partition, the housing having a respirator side on a first side of the partition, and having a patient side on a second side of the partition, and the housing having (a) a patient inspiration orifice on the patient side, adaptable to supply breathing-gas to a patient, and (b) a gas exhaust orifice on the patient side; and a filter body having (a) an inlet connected to the gas exhaust orifice, (b) an outlet connected to a suction line, and (c) a major-through-passage for carrying exhaust gas from the gas exhaust orifice toward the suction line, and wherein the filter body is capable of passing gas from outside the rebreather across the porous barrier of the filter body to the major-through-passage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of delivering breathing-gas, comprising:
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providing a breathing-gas delivery system having (a) a movable partition, (b) a housing disposed about the movable partition, the housing having a respirator side on a first side of the partition, and having a patient side on a second side of the partition, and the housing having (i) a patient inspiration orifice on the patient side, adaptable to supply breathing-gas to a patient, and (ii) a gas exhaust orifice on the patient side, and (c) a filter body having (i) an inlet connected to the gas exhaust orifice, (ii) an outlet connected to a suction line, (iii) a major-through-passage for carrying exhaust gas from the gas exhaust orifice to the suction line without crossing a porous barrier of the filter body, and (iv) capable of passing gas from outside the rebreather across the porous barrier to the major-through-passage; moving the partition to cause inspiratory gas to leave the patient side via the patient inspiration orifice to supply breathing-gas to a patient; allowing gas to exit the patient side via the gas exhaust orifice on the patient side to provide exhaust gas; passing the exhaust gas through the major-through-passage; and passing gas from outside the rebreather across the porous body to the major-through-passage; passing the exhaust gas and the gas passed from outside the rebreather to the suction line. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A patient ventilator system, comprising:
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a housing having a gas exhaust orifice; and a filter body having (a) an inlet connected to the gas exhaust orifice, (b) an outlet connected to a suction line, (c) a major-through-passage for carrying exhaust gas from the gas exhaust orifice to the suction line without crossing a porous barrier of the filter body, and wherein the filter is capable of passing gas from outside the system across the porous barrier of the filter to the major-through-passage. - View Dependent Claims (22, 23)
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Specification