Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1996-11-12
1998-04-14
Millin, Vincent
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820024, 12820214, A61B 1000
Patent
active
057380937
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
It is generally known that divers can be affected by "the bends" which can cause permanent injury or even death and that the only possible treatment for this type of accidents, which very often is 100% successful, is the decompression therapy, which can be very useful also for carbon monoxide poisoning through hyperbaric oxygen breathing.
BACKGROUND OF THE INVENTION
For the divers, the Therapeutic Treatment Tables published by the US Navy contemplate a maximum "relief depth" of 165 fsw, and in the past only metallic chambers, heavy and cumbersome, were available for this depth.
These have the inconvenience of bulk and weight, and therefore their use by divers and ambulance has been restricted to very few instances.
The design of a single lock decompression chamber, "one man chamber" to speak about the smallest, in order to be successful requires the solution of five problems, which so far have never been solved, namely:
All manufacturers of the past have never been able to solve the first problem, and in order to solve the second, as the longitudinal stresses are proportional to the square of the diameter, have kept this last one to the minimum, in order to minimize the load on the fabric. Moreover, nobody has been able to solve the problem of a quick and simple locking mechanism for the door, which usually has the same diameter of the pressure hull and is cumbersome to fit and seal.
In addition, all past inventors have reduced the working pressure of their flexible chambers down to two bar gauge, reducing greatly the usefulness of their invention.
Among them, some have tried to contain their flexible gas tight body within a steel wire net, but even in this case they have been unable to increase the working pressure because of the problems of interface between steel wire net and flexible hull.
SUMMARY AND OBJECTS OF THE INVENTION
In our invention all five problems have been solved and therefore today it is possible to manufacture a flexible decompression chamber of any conceivable diameter with a working pressure of 5 bar or over, and for the first time a flexible chamber can be a double or multiple lock decompression chamber.
The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming a part of this disclosure. For a better understanding of the invention, its operating advantages and specific objects attained by its uses, reference is made to the accompanying drawings and descriptive matter in which preferred embodiments of the invention are illustrated.
BRIEF DESCRIPTION OF THE DRAWINGS
In the drawings:
FIG. 1 is a partial sectional view of the flexible decompression chamber according to the invention;
FIG. 2 is a side view thereof, with a portion being cut away;
FIG. 3 is an enlarged sectional view showing a ring secured to a flexible hull;
FIG. 4 is a cross-sectional view showing the assembly of an outer shield, and inner collar and the flexible hull;
FIG. 5a is a cross-sectional view of the outer shield;
FIG. 5b is a sectional view of the inner collar;
FIG. 6a is another sectional view of the outer shield;
FIG. 6b is another sectional view of the inner collar;
FIG. 7a is a front view of the pressure door;
FIG. 7b is a cross-sectional view showing the pressure door;
FIG. 8a shows another embodiment of the invention with two pressure doors;
FIG. 8b is a front and side view of a pneumatic frame;
FIG. 9 is a front view showing the pressure door;
FIG. 10a is a front view showing the connection of the wheellette member and the longitudinal members;
FIG. 10b is a cross-sectional view showing the connection of the wheellette member and a longitudinal member;
FIG. 11a is a view partially in cross-section showing features of the pressure door and longitudinal member connection;
FIG. 11b is a front view of a metallic terminal;
FIG. 11c is a bottom view of the metallic terminal;
FIG. 11d is a side sectional view of the metallic terminal of FIG. 11b.
DESCRIPTION OF THE PREFERRED EMBODIMENT
With referenc
REFERENCES:
patent: 2401230 (1946-05-01), Colley
patent: 2448546 (1948-09-01), Plemel et al.
patent: 3877427 (1975-04-01), Alexeev et al.
patent: 5467764 (1995-11-01), Gamow
patent: 5582574 (1996-12-01), Cramer
GSE Giunio Santi Engineering S.R.L.
Millin Vincent
Srivastava V.
LandOfFree
Flexible hyperbaric chamber does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flexible hyperbaric chamber, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flexible hyperbaric chamber will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-627695