Condensate drain for respiratory air line
First Claim
1. A drain for removing condensate from a respiratory air line that is alternately under relatively high pressure during the patient'"'"'s inspiration, and under relatively low pressure during the patient'"'"'s expiration, the drain comprising:
- a hollow body having an inlet end, adapted for connection to the respiratory air line, and having an inlet opening therein, and an outlet end having an outlet opening therein;
a one-way reed-type valve for permitting condensate to pass through the body from the inlet to the outlet, but restricting condensate from refluxing back into the respiratory line during periods of relatively low pressure in the respiratory line, the reed-type valve comprising two converging flexible members configured to allow condensate to flow in one direction through the body;
a float valve that is normally closed to restrict the flow of air through the body during periods of relatively high pressure in the respiratory line, but which opens in the presence of condensate to allow condensate to flow out of the body, the float valve comprising a float member that normally seats over a valve opening to close the outlet opening, but which when sufficient condensate is present in the body floats to allow the condensate to pass through the body.
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Accused Products
Abstract
A drain for removing condensate from a respiratory air line comprising a hollow body having an inlet end, adapted for connection to the respiratory air line, and an outlet end. A normally closed float valve restricts the flow of air through the body during periods of relatively high pressure in the respiratory line, but opens in the presence of condensate to allow condensate to flow out of the body. A reed-type valve permits condensate to pass through the body from the inlet to the outlet, but restricts condensate from refluxing back into the respiratory line during periods of relatively low pressure in the respiratory line. The reed-type valve is of the type comprising two converging flexible members configured to allow condensate to flow in one direction through the body.
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Citations
18 Claims
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1. A drain for removing condensate from a respiratory air line that is alternately under relatively high pressure during the patient'"'"'s inspiration, and under relatively low pressure during the patient'"'"'s expiration, the drain comprising:
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a hollow body having an inlet end, adapted for connection to the respiratory air line, and having an inlet opening therein, and an outlet end having an outlet opening therein; a one-way reed-type valve for permitting condensate to pass through the body from the inlet to the outlet, but restricting condensate from refluxing back into the respiratory line during periods of relatively low pressure in the respiratory line, the reed-type valve comprising two converging flexible members configured to allow condensate to flow in one direction through the body; a float valve that is normally closed to restrict the flow of air through the body during periods of relatively high pressure in the respiratory line, but which opens in the presence of condensate to allow condensate to flow out of the body, the float valve comprising a float member that normally seats over a valve opening to close the outlet opening, but which when sufficient condensate is present in the body floats to allow the condensate to pass through the body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A drain for removing condensate from a respiratory air line that is alternately under relatively high pressure during the patient'"'"'s inspiration and under relatively low pressure during the patient'"'"'s expiration, the drain comprising:
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a hollow body having an inlet end, adapted for connection to the respiratory air line, and having an inlet opening therein, and an outlet end having an outlet opening therein; a one-way reed-type valve adjacent the inlet end of the body, the reed valve comprising two converging flexible members configured to allow condensate to enter the body through the inlet opening but restrict flow out of the body; a float valve adjacent the outlet end of the body, the float valve comprising a float member that normally seats over the outlet opening to close the outlet opening, but which when sufficient condensate is present in the body floats to allow the condensate to drain out the outlet. - View Dependent Claims (11)
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12. A drain for removing condensate from a respiratory air line that is alternately under relatively high pressure during the patient'"'"'s inspiration and under relatively low pressure during the patient'"'"'s expiration, the drain comprising:
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a hollow body having an inlet end, adapted for connection to the respiratory air line, and having an inlet opening therein, and an outlet end having an outlet opening therein; a float valve, adjacent the outlet end of the body, the float valve comprising a cage and a float member contained within the cage, the cage having an outlet end having an outlet opening, the float member normally seats over the cage outlet opening to close the opening, but which when sufficient condensate is present in the cage floats to allow the condensate to drain out the cage outlet; and a one-way reed valve adjacent the outlet end of the body, the reed valve comprising two converging flexible members configured to allow the condensate to drain from the cage outlet out of the body outlet but restricts flow of condensate into the body outlet. - View Dependent Claims (13, 14, 15, 16)
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17. A drain for removing condensate from a respiratory air line that is alternately under relatively high pressure during the patient'"'"'s inspiration and under relatively low pressure during the patient'"'"'s expiration, the drain comprising:
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a hollow body having an inlet end, adapted for connection to the respiratory air line, and having an inlet opening therein, and an outlet end having an outlet opening therein; a float valve, adjacent the outlet end of the body, the float valve comprising a chamber in the body having an outlet opening and a float member in the chamber which normally seats over the cage outlet opening to close the opening, but which when sufficient condensate is present in the chamber floats to allow the condensate to drain out chamber opening; and a one-way reed valve adjacent the outlet end of the body, the reed valve comprising two converging flexible members configured to allow the condensate to drain from the cage outlet out of the body outlet but restricts flow of condensate into the body outlet. - View Dependent Claims (18)
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Specification