Surgery – Truss – Pad
Patent
1984-07-19
1987-01-27
Howell, Kyle L.
Surgery
Truss
Pad
128725, 272 99, 7386176, A61B 508
Patent
active
046388125
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention concerns a means intended for measuring the peak flow of a person's exhalation, said means comprising a frame structure provided with a mouthpiece part, a flap means accomodated within the frame structure, and a pointer means.
A means of this kind is termed a peak flow meter. The means is applicable in hospital as well as home use.
Regarding the state of art, reference is made to means in current use, such as e.g. "Mini-Wright" and "Vitalograph". A drawback of these means of prior art is their complex structure, in addition to which the hygienic condition of the means cannot be controlled without having to open the means.
SUMMARY OF THE INVENTION
The object of the present invention is to provide an improvement of similar means known in the art. The detailed object of the invention is to provide a means which in structure is remarkably simpler. A further object of the invention is to provide a means which is highly reliable as to its operation. Yet another object of the invention is to provide a means enabling the hygienic condition of the means' interior to be observed without need to open the means.
The aims of the invention are achieved by a means which is mainly characterized in that the spring means of the flap means has been placed in a hollow space in the lower part of the flap means, where the spring means is not in contact with the exhaled air.
By the means of the invention, numerous remarkable advantages are gained. The means of the invention is in its structure and size comparatively simpler and smaller than equivalent means known in the art. In the means of the invention, the spring design enables the reliability of the meter to be ascertained, after it has been used an investigated number of times, in that the user himself/herself replaces the spring of the flap means, which can be done without any tools. In the design of the invention, the spring means of the flap means also is not in contact with the exhaled air. In the means of the invention, it is advantageous to use a transparent cover part, which enables the hygienic condition of the interior of the means to be observed without having to open the means.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is described in detail referring to an advantageous embodiment of the invention presented in the figures of the drawing attached, but to which the invention is not meant to be exclusively confined.
FIG. 1 is a front elevational view of one embodiment of the present invention;
FIG. 2 is a right side elevational view of the embodiment of FIG. 1;
FIG. 3 is a view, partially in section, illustrating attachment of flap means and pointer means to a frame in accordance with the present invention;
FIG. 4(a) is a view of spring means in accordance with the present invention;
FIG. 4(b) is a side view of FIG. 4(a);
FIG. 5(a) is a view similar to FIG. 4(a) of alternative spring means in accordance with the present invention; and
FIG. 5(b) is a side view of FIG. 5(a).
In the embodiment depicted in FIGS. 1 to 3, the means of the invention in general has been indicated with the reference numeral 10. The means 10 comprises a frame structure, to which belongs a frame part 11 with a fixed mouthpiece part 13, and a cover part 12. If desired, it is also possible to attach to the fixed mouthpiece part 13 detachably a disposable mouthpiece part (not depicted). In the frame part 11 are provided tunnels for the fixing screws 19 of the cover part 12 and the mounting axle 18 for one end 14a of the flap means 14, this axle having a slot 22 for fixing one end of the spring means 16 to the flap means 14. The frame part 11 is also provided with suitably dimensioned flow apertures 20 for permitting unobstructed movement of the flap means 14.
The cover part 12 carries a graduation 21. The cover part 12 has holes for the fixing screws 19 of the cover part 12 and the mounting axle 18 for the pointer means 15, this axle being provided with the depression 22 for fixing one end 14a of the flap means 14. The cover part 12,
REFERENCES:
patent: 302908 (1884-08-01), Haight
patent: 966050 (1910-08-01), Ramage
patent: 2296973 (1942-09-01), Ardelt
patent: 2889707 (1959-06-01), Snider
patent: 3564419 (1968-07-01), Cronin et al.
patent: 3797480 (1974-03-01), Williams
patent: 3826247 (1974-07-01), Ruskin et al.
patent: 3877303 (1975-04-01), Beckman
patent: 3949737 (1976-04-01), Nielsen
patent: 4041935 (1977-08-01), Garbe
patent: 4144883 (1979-03-01), Grieshaber
patent: 4344331 (1982-08-01), Iwasaki
Etela Hameen Keuhkovammyhdistys R.Y.
Hanley John C.
Howell Kyle L.
LandOfFree
Exhalation flow meter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Exhalation flow meter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exhalation flow meter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-852766