US 3395700 A
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Aug. 6, 1968 M. STiLLMAN 9 MOUTH-TO'MOUTH RESUSCITATION DEVICE Filed June 2, 1965 INVENTOR ,M z/m SMAMA/V ATTORNEYS.
United States Patent l 3,395,700 MOUTH-TO-MOUTH RESUSCITATION DEVICE Milton Stillman, 1320 N. Callow Ave., Bremerton, Wash. 98310 Filed June 2, 1965, Ser. No. 460,704 2 Claims. (Cl. 128-1455) ABSTRACT OF THE DISCLOSURE A rnouth-to-mouth resuscitator comprising a single unitary body which includes a mouthpiece for a victim which forms a conduit extending into a chamber in the body and a mouthpiece for a rescuer, said chamber communicating exteriorly through an aperture, and a reciprocably mounted deflector plate in the chamber having a tongue extending into the rescuers mouthpiece for preventing passage of saliva from the rescuer to the victim and removal of such saliva from the chamber is disclosed.
This invention relates to resuscitation devices, and more particularly to a device usable in the mouth-tomouth resuscitation technique which obviates the need for direct oral contact and yet provides all of the advantages of this procedure.
Various mouth-to-mouth resuscitation aids have been proposed by the prior art, but it has been found that there are serious disadvantages residing in all of them. The prior art devices are characterized by a movably mounted diaphragm which, although it effects complete separation of the victim and the rescuer, often results in an inadequate volume of air delivered to the victim. Other disadvantages of the diaphragm type include its inherent complexity, usually requiring mechanical valves and the like.
A primary object of the instant invention is to provide H a resuscitator for mouth-to-mouth resuscitation which obviates the requirement of direct oral contact and which delivers a volume of air to the victim that is dependent only upon the lung power of the rescuer.
Another object of the instant invention is to provide a resuscitator for mouth-to-mouth resuscitation which is simple in construction, simple in operation, inexpensive to manufacture, and which may be easily sterilized.
A further object of this invention is to provide a resuscitator for mouth-to-mouth resuscitation having a direct air passage from the mouth of the rescuer to the mouth of the victim.
A still further object of this invention is to provide a resuscitator for mouth-to-mouth resuscitation, having a direct air passage from the rescuer to the victim and having means within the air passage to collect saliva of the rescuer.
Other objects and advantages of the instant invention reside in the combinations of elements, arrangements of parts and features of construction and operation some of which will be apparent and some of which will be more fully pointed out hereinafter and disclosed in the accompanying drawings wherein there is shown a preferred embodiment of this inventive concept.
In the drawings:
FIGURE 1 is a front elevational view of the resuscitator of the instant invention;
FIGURE 2 is a top plan view of the resuscitator of FIGURE 1;
FIGURE 3 is a cross-sectional view of the resuscitator of FIGURE 2, taken along line 33 and viewing in the direction of the arrows;
FIGURE 4 is a side elevational view of the resuscitator of the instant invention; and
FIGURE 5 is a bottom view of the resuscitator of FIGURES 1 to 4 inclusive.
Referring now to the drawing in detail, wherein like 3,395,700 Patented Aug. 6, 1968 reference characters designate like elements throughout the several views thereof, there is indicated generally at 10 a mouth-to-mouth resuscitation device made of any desirable material but preferably of plastic or hard rubber, the major components of which comprise an enlarged receptacle shown generally at 12, a mouthpiece for a victim shown generally at 14, a reciprocable float indicated generally at 16 and a mouthpiece for a rescuer shown generally at 18.
Receptacle 12 includes a bottom portion shown generally at 20 having a cylindrical wall 22 and a bottom wall consisting of a frusto-conical surface 24 and a trough-shaped surface 26. As shown in FIGURES 1 and 3 to 5, an aperture 28 is formed in frusto-conical surface 24 which serves as a drain hole and as a means for selectively sealing receptacle 12, as by the index finger of a rescuer, as more fully explained hereinafter.
Receptacle 12 also includes an upper portion indicated generally at 30 having a cylindrical wall 32 which may be temporarily or permanently secured to the upper end of cylindrical wall 22, and a frusto-conical surface 34 secured to cylindrical ring 32.
Extending through trough-shaped bottom 26 of receptacle 12 is a mouthpiece .14 having a central passageway 36 extending therethrough and a lower section 38 which is configured to be conveniently placed in the mouth of a victim to keep the mouth open and to prevent the victim from swallowing his tongue. Accordingly, lower section 38 describes a circular cross-sectional area at the inner section 40 of mouthpiece 14 in trough-shaped surface 26 and a generally oval cross-section as shown in FIGURE 5.
Mouthpiece 14 also includes an upper section 42 which is circular in cross section and which is formed with a pair of arcuate cut away surfaces 44 at its upper end forming a pair of upwardly facing protuberances 46. As more fully explained hereinafter, cut away sections 44 provide an air passageway between the respiratory tract of the victim and the respiratory tract of the rescuer.
As shown in FIGURE 3, float 16 is positioned within receptacle 12 immediately above the upper end of mouthpiece 14 and includes a circular plate 48 which is beveled as at 50 on its upper surfaces. A centrally mounted upwardly extending elongated tongue 52 is secured to plate 48 and extends into mouthpiece 18 which is secured to frusto-conical surface 34 of receptacle 12. Mouthpiece 18 includes a generally oval inlet 54 which communicates with the interior of receptacle 12.
In the operation of the resuscitator of the instant device, mouthpiece 14 is placed in the mouth of a victim with the victims tongue being held in place by lower section 36. To initiate mouth-to-mouth resuscitation, a rescuer places his month about mouthpiece 18 with aperture 28 being closed by a finger of the rescuer. By forcefully exhaling through mouthpiece 18 float 16 is pushed downwardly against protuberances 46 of mouthpiece 14 with the exhaled air flowing around plate 48 and through the area provided between cut away section 44 and plate 48. The exhaled air then flows through passageway 36 into the respiratory tract of the victim.
The rescuer may then remove his mouth from mouthpiece 18 in order to take a breath and will remove his finger from aperture 28. The air injected into the respiratory tract of the victim will be exhaled by the normal collapse of the victims lungs and will pass through passageway 36 and will exit through aperture 28 and opening 54 of mouthpiece 18. Should the rescuer desire to breathe through the nose, the mouth need not be re moved from mouthpiece 18, with the air exhaled from the victims respiratory tract exiting through aperture 28.
Those who are experienced in mouth-to-mouth resuscitation practices will readily appreciate that the rescuer will often drool or otherwise allow saliva to exit from the mouth which is accommodated by the resuscitator of the instant invention. Any saliva so discharged from the mouth of the rescuer will ultimately come into contact with plate 48 and may drip off the periphery thereof into the collector provided by the inner surface of frusto-conical wall 24 and trough-shaped surface 26. Any liquid thus accumulated may readily fiow through aperture 2-8 when the finger of the rescuer is removed.
It should be apparent that the resuscitator of the instant invention provides a convenient means for avoiding direct oral contact between the victim and the rescuer and at the same time allows the use of the total lung power of the rescuer in an attempt to revive the victim. It should also be apparent that the relationship between plate 48 and passageway 36 avoids the undesirable inhalation of liquids by the victim.
It is now seen that there is herein provided an improved resuscitator having all of the advantages of the instant invention and others, including many advantages of great practical utility and commercial importance.
Since many embodiments may be made of the instant invention, and since many modifications may be made of the embodiment hereinbefore shown and described, it is to be understood that the foregoing is to be interpreted merely as illustrative and not in a limiting sense.
1. A resuscitator adapted for use in mouth-to-mouth resuscitation in a normally vertical attitude comprising a body having an inner chamber having a first end and a second end in fluid communication with said first end, a first mouthpiece including a substantially straight member forming a substantially straight passageway therein and having two ends, said first mouthpiece being secured to said first end of said body with one of said ends of said member extending into said inner chamber for providing communication between said inner chamber and the exterior of said resuscitator, said first mouthpiece be- 4 I V ing adapted to be positioned within the mouth of a victim with said body being held in a normally vertical position, a second mouthpiece secured to said second end of said body providing communication between said inner chamber and the exterior of said resuscitator, means mounted in said inner chamber above said passageway of said first mouthpiece when said body is in the vertical position for deflecting liquids away from said passageway, said deflecting means including a plate extending beyond the lateral extent of said passageway, said end of said first mouthpiece inwardly of said chamber forming a series of air passages, and a tongue secured tosaid plate extending into said second mouthpiece.
2. The structure of claim 1 wherein said body provides an opening communicating between said inner chamber and the exterior of said resuscitator below said air passages provided in said first mouthpiece.
References Cited UNITED STATES PATENTS 3,006,337 10/1961 Aguado 128-1455 3,079,916 3/1963 Marsden 128-1455 3,080,864 3/1963 Berman l28--145.5 3,099,985 8/1963 Wilson et a1 128-1455 3,090,380 5/1963 Dold 128--145.7 3,106,916 10/1963 Matthes 128145.5 3,124,124 3/1964 Cross 128l45.5 3,137,293 6/1964 Green 128-145.5 3,252,457 5/1966 Monaco et al 128-1455 3,286,710 1'1/1966 Bartlett 128145.5
FOREIGN PATENTS 1,267,471 6/ 1961 France.
934,973 8/1963 Great Britain.
RICHARD A. GAUDET, Primary Examiner.
K. L. HOWELL, Assistant Examiner.