Pumping device

Details Pumping device Pumping device

1992-12-15

1994-09-13

Burr, Edgar S.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820514, 12820627, A62B 700

Patent

active

053459296

DESCRIPTION:

BRIEF SUMMARY
The present invention relates to a pumping apparatus of the bellows type, which is adapted for artificial respiration of a distressed person having temporarily no ability to breathe by himself.
The reason for using pumps for carrying out an artificial respiration is that the rescuing person otherwise may run the risk of fainting as a consequence of hyper-ventilation. Furthermore, it is difficult to blow in a well balanced amount of air using the mouth-to-mouth-method. In addition thereto it may often be uncomfortable to carry out the mouth-to-mouth-method with the distressed person, since this may be influenced by drugs or in another way acting repellently. The fear for transmission of deceases, such as AIDS, may also contribute to this.
A series of pumps for breathing aid are already known, and the one according to U.S. Pat. No. 2,364,626 may be mentioned. A disadvantage of these pumps already known is that they are constructed unnecessarily complicatedly and by that costly to manufacture, and they are also inconvenient to carry along, not least for the reason that they require a comparatively big storing space.
A pumping apparatus according to the type mentioned in the introduction is already known through U.S. Pat. No. 2,428,451. Owing to the fact that the pump is of the bellows type, it is possible to reduce the demand on space thereof in the unused storing position, but some kind of device for holding the bellows together would be necessary for achieving this. Furthermore, the pumping apparatus according to the patent last mentioned is comparatively complicatedly constructed and inconvenient to carry along.


BRIEF DESCRIPTION OF THE INVENTION

The object of the present invention is to provide a pumping apparatus of the kind defined in the introduction, which remedies the inconveniences of pumping apparatuses already known.
In accordance with the invention this object is obtained by providing such a pumping apparatus with the characteristics defined in the characterising part of the appended claim 1.
By the fact that the pumping apparatus according to the invention comprises a bag with two mutually movable walls, that the ends of the folded bellows wall are fastened to one of the two walls each and that the pump is arranged to force the air contained in the bellows space aside and to suck air thereinto by movement of the two walls towards each other and away from each other, respectively, a very simply constructed pumping apparatus is obtained, which also may be stored and carried along in a very compact state. Accordingly, this is enabled through the fact that a bag or a case functions as a part of the pump itself and also may contain the bellows. The other parts included in the pumping apparatus may also be contained in the bag in its storing state if the bag of the pumping apparatus according to the invention is suitably dimensioned. This means that the pumping apparatus becomes very easy to carry along and the risks of damaging the parts included therein during transport will also be a minimum, since the walls of the bag will function as a protection thereof.
Further advantages and preferred characteristics of the invention will appear from the following description as well as the appended dependent claims.


BRIEF DESCRIPTION OF THE DRAWINGS

With reference to the appended drawings, below follows a specific description of a preferred embodiment of the present invention cited as an example.
In the drawings:
FIG. 1 is a perspective view of the pumping apparatus according to the invention just opened after transport,
FIG. 2 is a schematic view illustrating the use of the apparatus according to FIG. 1,
FIG. 3 and 4 are side elevations of the apparatus according to FIG. 1 with parts of the bag walls broken away so as to illustrate a bar for protection against-pumping of great amounts of air into the lungs of small persons, such as children.


DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT OF THE INVENTION

A preferred embodiment of the pumping apparatus 1 according to the invention is shown in FIG. 1,

REFERENCES:
patent: 1157655 (1915-10-01), Mayer et al.
patent: 1197232 (1916-09-01), Pierport
patent: 1202125 (1916-10-01), Tullar
patent: 1371702 (1921-03-01), Lyon
patent: 2364626 (1944-12-01), Emerson
patent: 2428451 (1947-10-01), Emerson
patent: 3058460 (1962-10-01), Goodner
patent: 3316903 (1967-05-01), Richards
patent: 3461865 (1969-08-01), Chouinard et al.
patent: 3818806 (1974-06-01), Fumagalli
patent: 3939830 (1976-02-01), da Costa
patent: 4060077 (1977-11-01), Friedman
patent: 4187845 (1980-02-01), Dror
patent: 4349015 (1982-09-01), Alferness
patent: 4870962 (1989-10-01), Sitnik
patent: 4898166 (1990-02-01), Rose et al.
patent: 4898167 (1990-02-01), Pierce et al.
U.S. Armed Forces Medical Journal A61M16/00P,M--Jun., 1956.

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