US5398676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable emergency respirator
Assignee: Individual
•
Filing: 1993-09-30
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Granted: 1995-03-21
•
Expires: 2013-09-30
Abstract
Abstract A portable emergency respirator which contains an electrical power supply, a source of compressed air, and a switch which allows one to produce three separate different types of pneumatic outputs from the source of compressed air. In one mode of operation, the output from the source of compressed air provides intermittent positive pressure ventilation to the patient. In a second mode of operation, the output from the source of compressed air is automatically synchronized with the patient's breathing. In a third mode of operation, the output from the source of compressed air is manually controlled by an operator.
Inventors
- 👤 Roman J. Press
- 👤 Jeffrey S. Gutterman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:36
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/0051; A61M16/021; A61M16/022; A61M16/024; A61M16/0057; A61M16/0063; A61M16/0003; A61M2016/0015; A61M2016/0018; A61M2016/0024; A61M2016/0027; A61M2205/00; A61M2205/50; A61M2205/502
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
179 words
A portable emergency ventilating apparatus, wherein said ventilating apparatus is comprised of: (a) an electrical power supply; (b) a source of compressed gas; (c) a first means for producing a pulsed electrical signal, wherein said first means for producing an electrical signal is comprised of a timing circuit; (d) a second means for producing a pulsed electrical signal, wherein said second means for producing a pulsed electrical signal is comprised of means for sensing a patient's breathing; (e) a third means for producing a pulsed electrical signal, wherein said third means for producing a pulsed electrical signal is comprised of a first switching means, and wherein said first switching means is comprised of a switch; (f) second switching means for alternatively supplying power to said first means for producing a pulsed electrical signal, said second means for producing a pulsed electrical signal, and said third means for producing a pulsed electrical signal, wherein said second switching means is electrically connected to said power supply; and (g) means for sending said pulsed electrical signal to said source of compressed gas.
Claim 2
Dependent Claim
179 words
A portable emergency ventilating apparatus, wherein said ventilating apparatus is comprised of: (a) an electrical power supply; (b) a source of compressed gas; (c) a first means for producing a pulsed electrical signal, wherein said first means for producing an electrical signal is comprised of a timing circuit; (d) a second means for producing a pulsed electrical signal, wherein said second means for producing a pulsed electrical signal is comprised of means for sensing a patient's breathing; (e) a third means for producing a pulsed electrical signal, wherein said third means for producing a pulsed electrical signal is comprised of a first switching means, and wherein said first switching means is comprised of a switch; (f) second switching means for alternatively supplying power to said first means for producing a pulsed electrical signal, said second means for producing a pulsed electrical signal, and said third means for producing a pulsed electrical signal, wherein said second switching means is electrically connected to said power supply; and (g) means for sending said pulsed electrical signal to said source of compressed gas.
Claim 3
Dependent Claim
22 words
The ventilating apparatus as recited in claim 1, wherein said apparatus is comprised of means for sensing compression of a patient's chest.
Claim 4
Dependent Claim
21 words
The ventilating apparatus as recited in claim 2, wherein said apparatus is comprised means for counting compressions of a patient's chest.
Claim 5
Dependent Claim
48 words
The ventilating apparatus as recited in claim 3, wherein said source of compressed gas is an air compressor, and said apparatus is comprised of means for delivering a pulsed electrical signal to said air compressor after it has counted a specified number of compressions of a patient's chest.
Claim 6
Dependent Claim
46 words
The ventilating apparatus as recited in claim 4, wherein said apparatus is comprised of means for varying the number of compressions of a patient's chest which must be sensed by the apparatus prior to the time said pulsed electrical signal is delivered to said air compressor.
Claim 7
Dependent Claim
28 words
The apparatus as recited in claim 5, wherein said apparatus is comprised of means for measuring the amount of air flowing from said air compressor to a patient.
Claim 8
Dependent Claim
28 words
The apparatus as recited in claim 6, wherein said apparatus is comprised of means for measuring the amount of air flowing from said patient towards said air compressor.
Claim 9
Dependent Claim
31 words
The apparatus as recited in claim 7, comprised of means for comparing the amount of air flowing from said air compressor to said patient with a specified tidal volume reference standard.
Claim 10
Dependent Claim
21 words
The apparatus as recited in claim 8, wherein said apparatus is comprised of means for varying said tidal volume reference standard.
Claim 11
Dependent Claim
37 words
The apparatus as recited in claim 9, comprised of means for increasing the amount of air flowing from said air compressor to said patient whenever said amount of air is less than said tidal volume reference standard.
Claim 12
Dependent Claim
24 words
The apparatus as recited in claim 10, comprised of means for measuring the pressure of air flowing from said air compressor to said patient.
Claim 13
Dependent Claim
30 words
The apparatus as recited in claim 1, wherein said apparatus is comprised of means for measuring the amount of air flowing from said source of compressed gas to a patient.
Claim 14
Dependent Claim
39 words
The apparatus as recited in claim 12, wherein said source of compressed gas is an air compressor, and wherein said apparatus is comprised of means for measuring the amount of air flowing from said patient towards said air compressor.
Claim 15
Dependent Claim
31 words
The apparatus as recited in claim 13, comprised of means for comparing the amount of air flowing from said air compressor to said patient with a specified tidal volume reference standard.
Claim 16
Dependent Claim
21 words
The apparatus as recited in claim 14, wherein said apparatus is comprised of means for varying said tidal volume reference standard.
Claim 17
Dependent Claim
37 words
The apparatus as recited in claim 15, comprised of means for increasing the amount of air flowing from said air compressor to said patient whenever said amount of air is less than said tidal volume reference standard.
Claim 18
Dependent Claim
24 words
The apparatus as recited in claim 16, comprised of means for measuring the pressure of air flowing from said air compressor to said patient.
Claim 19
Dependent Claim
25 words
The apparatus as recited in claim 17, comprised of means for activating an alarm whenever said air pressure is less than said pressure reference standard.
Claim 20
Dependent Claim
30 words
The apparatus as recited in claim 17, comprised of means for comparing the pressure of air flowing from said air compressor to said patient with a specified pressure reference standard.
Claim 21
Dependent Claim
33 words
The apparatus as recited in claim 19, comprised of means for ceasing the flow of air from said air compressor whenever the pressure of said flowing air exceeds said specified pressure reference standard.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-03-20 | 1998-09-19 | 1999-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-03-20 | 2002-09-19 | 2003-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-03-20 | 2006-09-19 | 2007-03-21 | $7700.00 | Window Closed / Lapsed |