Intermittent positive pressure breathing device

Surgery – Truss – Pad

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

A61M 1600

Patent

active

040570592

ABSTRACT:
A ventilator implemented completely with fluidic devices provides independent control of inhalation time, exhalation time and breathing gas flow rate. The basic fluidic system comprises a low frequency oscillator which in the form of a flip flop is controlled in its two stable states by means of independently controlled time delay relays. The output of the flip flop is amplified by a digital amplifier and operates an on-off valve which is used to direct breathing gas from the source to the patient. Independent control of the flow rate of the breathing gas is by means of a needle valve. With this basic fluidic system, there are seven other features of the apparatus. One is a maximum pressure control which on inhalation is responsive to the patient's breathing air pressure. The second feature is a sensitivity control, which during exhalation is responsive to the patient inspiratory effort. The third feature is a positive end exhalation pressure control. The fourth is an intermittent mandatory ventilation control which permits breathing rates as low as one breath per minute. The fifth feature is a manual control which allows the termination of the exhalation phase and initiation of the inhalation phase manually. The sixth feature is a sensor which is responsive to the breathing gas pressure at the patient. If the apparatus becomes detached from the patient, pressure cycling is modified and an alarm system sensitive to this pressure is activated. The seventh feature is a safety valve which allows the patient to breathe atmospheric air when the supply pressure of the source gas fails.

REFERENCES:
patent: 3683951 (1972-08-01), Beaumont
patent: 3754550 (1973-08-01), Kipling
patent: 3905362 (1975-09-01), Eyrick et al.
patent: 3905363 (1975-09-01), Dudley
patent: 3910270 (1975-10-01), Stewart
patent: 3916889 (1975-11-01), Russell

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Intermittent positive pressure breathing device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Intermittent positive pressure breathing device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intermittent positive pressure breathing device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-225211

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.