Patent US6354294B1 successfully refreshed from Google Patents.
US6354294B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxygen delivery system for portable ventilation
Assignee: Childrens Hospital of Orange County
•
Filing: 1999-09-23
•
Granted: 2002-03-12
•
Expires: 2019-09-23
Abstract
Abstract A portable oxygen delivery system supplies oxygen during prolonged transport via ambulance or helicopter to patients who are critically ill and in need of ventilatory support. The system includes two sets of oxygen tanks delivering oxygen to a manifold having two valve regulators. Oxygen flows from the first set of oxygen tanks through the first valve regulator, which remains open while the second valve regulator is closed, to the patient's portable ventilator. When the pressure from the first set of tanks drops below a given threshold, the first valve regulator closes and the second valve regulator opens, allowing oxygen to flow from the second set of oxygen tanks through the second valve regulator to the patient's ventilator. This system thereby maintains a continuous flow of oxygen to the patient's ventilator.
Inventors
- 👤 Daniel C. Villareal, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:56
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
149 words
An oxygen delivery system for portable mechanical ventilation, comprising: a first set of oxygen tanks; a second set of oxygen tanks; a first regulator removably coupled to the first set of oxygen tanks; a valve within the first regulator, the valve being open while oxygen flowing through the first regulator is at greater than a predetermined pressure level, and the valve being closed while oxygen flowing through the first regulator is at less than the predetermined pressure level; a second regulator removably coupled to the second set of oxygen tanks; and a valve within the second regulator, the valve being closed while oxygen flowing through the first regulator is at greater than the predetermined pressure level, and the valve being open while oxygen flowing through the first regulator is at less than the predetermined pressure level; wherein the first and second regulators are in communication with a mechanical ventilator.
Claim 2
Dependent Claim
149 words
An oxygen delivery system for portable mechanical ventilation, comprising: a first set of oxygen tanks; a second set of oxygen tanks; a first regulator removably coupled to the first set of oxygen tanks; a valve within the first regulator, the valve being open while oxygen flowing through the first regulator is at greater than a predetermined pressure level, and the valve being closed while oxygen flowing through the first regulator is at less than the predetermined pressure level; a second regulator removably coupled to the second set of oxygen tanks; and a valve within the second regulator, the valve being closed while oxygen flowing through the first regulator is at greater than the predetermined pressure level, and the valve being open while oxygen flowing through the first regulator is at less than the predetermined pressure level; wherein the first and second regulators are in communication with a mechanical ventilator.
Claim 3
Dependent Claim
27 words
The system of claim 1 , additionally comprising a third set of oxygen tanks, and a third regulator removably coupled to the third set of oxygen tanks.
Claim 4
Dependent Claim
23 words
The system of claim 1 , wherein the predetermined pressure level is within the range of 70 to 120 pounds per square inch.
Claim 5
Dependent Claim
23 words
The system of claim 3 , wherein the predetermined pressure level is within the range of 90 to 100 pounds per square inch.
Claim 6
Dependent Claim
21 words
The system of claim 1 , wherein one or more pressure gauges are in communication with the first and second regulators.
Claim 7
Dependent Claim
17 words
The system of claim 5 , wherein each set of oxygen tanks includes three individual oxygen tanks.
Claim 8
Dependent Claim
19 words
The system of claim 1 , wherein each set of oxygen tanks includes one or more individual oxygen tanks.
Claim 9
Dependent Claim
129 words
An oxygen delivery system for portable mechanical ventilation, comprising: a first set of oxygen tanks; a second set of oxygen tanks; a first regulator removably coupled to the first set of oxygen tanks; a valve within the first regulator, the valve being open while oxygen flowing through the first regulator is at greater than a predetermined pressure level, and closed while oxygen flowing through the first regulator is at less than the predetermined pressure level; a second regulator removably coupled to the second set of oxygen tanks; and a valve within the second regulator, the valve being closed while oxygen flows through the first regulator, and opening approximately when oxygen flow through the first regulator ceases; wherein the first and second regulators are in communication with a mechanical ventilator.
Claim 10
Dependent Claim
129 words
An oxygen delivery system for portable mechanical ventilation, comprising: a first set of oxygen tanks; a second set of oxygen tanks; a first regulator removably coupled to the first set of oxygen tanks; a valve within the first regulator, the valve being open while oxygen flowing through the first regulator is at greater than a predetermined pressure level, and closed while oxygen flowing through the first regulator is at less than the predetermined pressure level; a second regulator removably coupled to the second set of oxygen tanks; and a valve within the second regulator, the valve being closed while oxygen flows through the first regulator, and opening approximately when oxygen flow through the first regulator ceases; wherein the first and second regulators are in communication with a mechanical ventilator.
Claim 11
Dependent Claim
25 words
The system of claim 8 , wherein the valve in the second regulator opens prior to the closing of the valve within the first regulator.
Claim 12
Independent Claim
138 words
A method of delivering oxygen to a portable ventilator during transport of a patient, comprising: providing a first set of oxygen tanks removably coupled to a first regulator, which is in communication with a mechanical ventilator; providing a second set of oxygen tanks removably coupled to a second regulator, which is in communication with a mechanical ventilator; flowing oxygen from the first set of oxygen tanks through the first regulator to the ventilator; closing a valve within the first regulator when an oxygen pressure within the first regulator is less than a predetermined pressure, thereby causing the flow of oxygen through the first regulator to cease; and opening a valve within the second regulator at approximately the predetermined pressure, thereby causing oxygen to flow from the second set of oxygen tanks through the second regulator to the ventilator.
Claim 13
Independent Claim
138 words
A method of delivering oxygen to a portable ventilator during transport of a patient, comprising: providing a first set of oxygen tanks removably coupled to a first regulator, which is in communication with a mechanical ventilator; providing a second set of oxygen tanks removably coupled to a second regulator, which is in communication with a mechanical ventilator; flowing oxygen from the first set of oxygen tanks through the first regulator to the ventilator; closing a valve within the first regulator when an oxygen pressure within the first regulator is less than a predetermined pressure, thereby causing the flow of oxygen through the first regulator to cease; and opening a valve within the second regulator at approximately the predetermined pressure, thereby causing oxygen to flow from the second set of oxygen tanks through the second regulator to the ventilator.
References Cited (Backward Citations)
US914576A
Cited
US2063043A
Cited
US2216183A
Cited
US2310021A
Cited
US2854001A
Cited
US3016053A
Cited
US3524444A
Cited
US3595229A
Cited
US3675649A
Cited
US3791403A
Cited
US4944292A
Cited
US4722333A
Cited
US4928682A
Cited
US4932401A
Cited
US5396885A
Cited
US5613490A
Cited
US5647346A
Cited
US5584289A
Cited
US5676135A
Cited
US5785050A
Cited
US6082359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-03-11 | 2005-09-10 | 2006-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-03-11 | 2009-09-10 | 2010-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-03-11 | 2013-09-10 | 2014-03-12 | $7700.00 | Window Closed / Lapsed |