US1197232A - Pulmotor. - Google Patents

Description

Patented Sept. 5, 1916.

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J. H. PIERPONI-r PULMOTOR. I APPLICATION FILED MAY 31 1916- Patented Sept. 5, 1916.

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JURIAH HARRIS rrnnroivr, or PENSACOLA, FLORIDA.

PULMOTOR.

Specification of Letters Patent.

Patented Sept. 5, 1916.

Application filed May 3, 1916. Serial No. 95,189.

To all whom it may concern: 7

Be it known that I, JURIAH H. PIERPONT, a citizen of the United States, residing at Pensacola, in the county of Escambia, State of Florida, have invented a new and useful Pulmotor; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a pulmotor, particularly adapted for resuscitating persons from which life is supposedly extinct.

One of the objects of the invention is to improve, simplify and render more practical the structure of pulmotor in the application of J. H. Pierpont filed June 15, 1915, Serial No. 34,212, and which ap lication has matured into Patent, No. 1,17 ,208, dated 28th day of March 1916.

A further object of the invention is to provide improved means adapted for use in connection with the pulmotor set forth and claimed in the above patent, whereby the air in the lungs may be withdrawn, and oxygen or oxygenated air forced therein,the operation being intermittently.

In practical fields the details of construction may necessitate alterations, falling within the scope of what is claimed.

The invention comprises further features and combination of parts, as hereinafter set forth, shown in the drawings and claimed.

In the drawings: Figure 1 is a View in perspective of the improved pulmotor, illustrating the application and use of tlie same. Fig. 2 is a longitudinal sectional view through the pulmotor. Fig. 3 is a sectional view of the oxygen tank. Fig. 4 is a sectional View on line 4.-4 of Fig. 2. Fig. 5 is a sectional view on line 55 of Fig. 4. Fig. 6 is a sectional view on line 6-6 of Fig. 4. Fig. 7 is a perspective view of the plurality of rods 16, showing the eyes 16 Fig. 8 is a detail perspective view of the parts of the valve in the upper wall 3 of the bellows.

Referring more especially to the drawings, 1 designates an improved bellows as a whole comprising the upper and lower walls 3 and 4, which are constructed of suitable yieldable or spring sheet metal and having their end portions 6 connected by means of rivets 5 t0 the substantially U-shaped plates 7, which may be stamped or otherwise formed from spring sheet metal. -The upper and lower walls 3 an 4 may be any s itable shape, preferably as shown in plan view in Fig. '2, 1n "other words, substantially pearshaped. The end portions 8 of the upper the upper andlower walls 3 and 4 may be moved toward and from each other., The sides 11 and 12 merge together, by virtue of the curved wall 13.v The interior of the bellows is divided into two compartments 14 and 15, by virtue of a partition wall 16, which is also constructed of heavy leather or other suitable material. The partition wall 16 is likewise accordion plaited or constructed with convolutions, so as to crush and expand edgewise incident to the upper and lower. walls 3 and 4 moving toward and from each other. i

The U -shaped plate or member 7 is connected to the tubes or pipes 17 and 18, the

tube 17 being in communication with the compartment 14, while the tube 18 communicate's with the compartment 15. The tube 18 merges into a suitable valve casing 19 similar to that shown in the above said patent. The tube 17 communicates with the interior of the valve casing 19 at a point substantially midway the ends of said casing as shown. A tube or pipe 20 connects to the valve casing 19, and is in communication with said casing, a trifle above the valve 21, which is mounted in the casing '19. Said valve has its stem 22 guided in a suitable opening 23 of the closure 24 of the upper end of the casing 19, there being a suitable coil spring 25 interposed between the closure 24 (which is threaded to the casing 19) and the disk 26, which is carried by the valve stem 22, so as to hold the valve 21 normally in engagement with its seat 27. A suitable flexible tube 28 is connected to the tube 20 at one end, and has its other end connected to a suitable hood 29. This hood or mask 29 may be of any suitable construction, preferably as illustrated in the aforesaid fabric, and is provided with a suitable strap 30, for holding the mask or hood on the face of the patient or person being resuscitated.

The tubular handles 9 and 10 consist of two ' sections 31 and 32, and 33 and 34. The sections 31 and. 32 are threaded together as shown, so as to secure a suitable check valve 235 between the joined ends, so that the check valve will open in the direction as indicated in dotted lines. The sections 33 and iii are threaded together as illustrated, and a suitable check valve 36 is held between the adjacent ends of the sections and fill, so that the check valve 36 may open in the direction as indicated in full lines. In other words, the valves 35 and 30 open in opposite directions. A flexible tube 38 is connected to the tubular handle 9 by In :ans oi a nipple 39, which flexible tube 39 is in turn connected to a. suitable tank 40 designed to contain oxygen or oxygenated air, there being a suitable valve 41, whereby the oxygen or oxygenated air may be controlled. As before stated, the valves and all open in opposite directions, so that upon forcing the upper and lower walls 3 and a of the bellows toward each other, the oxygen (which has been drawn into the compartment previously) will be forced against the valve :31, raising it sufficiently past the port 4-3, thereby allowing the oxygen to pass through the tube and the tube 28, and into the mask or hood 29, where it enters the nose of the person and into the lungs. Upon moving the upper and lower walls 3 and t apart, the valves 21 and 3G immediately close, and there is a suction created in the compartment 1i, which sucks or draws out the stagnantair or oxygen, and into the compartment 14, and from which compartment said stagnant air escapes, when the valve opens, upon bringing the upper and lower walls 3 and l of the bellows toward each other. The upper and lower walls 3 and st of the bellows may be operated as rapid or as slow as necessary.

This pulmotor is designed for use in the doctor's or physicians ofiiee, in which case the tank 4-0 is preferably used, but should it be desired to use the pulmotor outside the otlice, a portable tank *ll may be used, such as shown in the aforesaid patent, and which may be suspended from the neck of the doctor or physician, and in this case the tube 538 may be connected to the tube -l5 of the portable tank l4. Carried by the *all i of the bellows near the handle 10 is a curved thrarded rod 46, which passes through an opening 47 in the wall 3, there being a winged nut 48 threaded upon the rod 4-6, for limiting the upper and lower walls 3 and l in their movements from each other.

hen the instrument or pulmotor is applied the bellows is opened, thus drawing vitiated air out of the lungs by creating a vacuum in the chamber 14:, which is already in open communication with the lungs. At the same time the vacuum created in the chamber 15 d 'aws either atmospheric air or oxygen (if the tank is connected for use) which is held in the chamber 15 until pressure is exerted (compression of bellows) in which case the contents of chamber 15 are forced into the lungs, the pressure of said contents on said valve 21, causes the valve 21 to rise against the action of the spring 25. As soon as pressure is removed, the valve drops back in place closing the port -13, as far as the same being in communication with the chamber 15 is concerned, and opening the air channel to the chamber 14-. The bellows is opened and closed by the operator every three or three and one half seconds, that is, corresponding to natural breathing. When applying the face mask, the operator grasps the patients tongue with any suitable or conventional form of tongue forceps c, and pulls the tongue well out of the mouth, and subsequently closing the mouth down upon the tongue, in which case the forcops and the extended tongue are entirely outside of the mouth. By this operation the passage through the mouth is closed, but the glottis at the opening of the wind pipe is opened, thereby causing an unobstructed passage through the windpipe and the nose, through which the oxygen or atmospheric air may be forced. The mask fits over all of the nose and mouth, having one edge at the bridge of the nose the other edge in the depression between the lower lip and chin, the single elastic strap of the mask is then passed around the head, holding the mask securely in place.

Shown in Fig. 1, there is a bag, constructed of any suitable material, such as rubber or the like, in the tube or pipe 38, which constitutes an auxiliary reservoir 0. When resuscitating a body, the operator opens the valve 11, thereby allowing such air or oxygen, that is thought suilicient to restore life to the body, to enter the auxiliary reservoir, then the valve l1 may be closed. However, if this quantity of oxygen is not sullicient, the operator allows more oxygen to enter the same. If desired a similar bag or auxiliary reservoir 0 may be connected between the bellows and the portable tank ll, and used in the same manner.

As stated before a valve rod 22 is guided in the opening 2 of the cap or closure 24, and adjoining the opening 93 are two radially disposed openings or slots 50. Carried by the rod 22 is a lug 51 of suiiicient size as to pass through either of the radial openings or slots 50. For instance, the valve 2-1 may be raised suiiieiently above the port l3 of the tube 20 so that the lug 51 will pass through one or the other of the slots or openings 50, after which the rod 212 may be given a partial turn, thereby supporting the valve in a raised position. The valve nor mally rests upon the shoulder or valve seat 27, and when in this position the stagnant air is drawn or sucked from thelungs of the person or patient, through the tubes20 and 28. When the valve is in a raised position, as indicated in dotted lines in Fig. 2, the doctor or physician may work the bellows once, twice or three times in quick succession, thereby forcing a good supply of oxygen or oxygenated air into the lungs, then the valve may be released and said stagnant air is drawn.

The wall 16 of the bellows is constructed of two thicknesses of heavy leather 16*, which are connected together adhesively. However, arranged between these two pieces of leather 16 and vulcanized therein is a series of rods 16", the ends 16 of which are secured in any suitable manner to the wall 7 a of the bellows. The other ends of said rods extend through the wall 16 of the bellows and terminate in eyes 16 through which the rod 46 extends, thereby acting as guides for the wall 16 as the bellows is collapsed and distended. The rod 46 consists of two sections 4:6 and 46 which are pivotally united by the pin 46, so that when the bellows is collapsed after being used and set aside, the section 46* of the rod may be folded upon the upper wall 3 of the bellows. The upper wall 3 is provided with a hollow offset 3 the wall of which is provided with apertures 3 there being a valve cap 3 connected to the offset by the pin 8 and having its flange fitting down over the 011'- set, so as to rotate thereon. The valve cap 3 is provided with a plurality of openings or apertures 3, in order to be moved into and out of registration with the apertures or openings 3*. The purpose of said cap and said apertures, is that when the person begins to breathe, the apertures 3 are thrown into registration with the apertures 3", so that the person may breathe fresh air, thereby eliminating the necessity of operating the bellows.

The invention having been set forth, what is claimed as new and useful is:

1. A pulmotor comprising in combination with a face mask, a valve casing and a valve seat therein, and valve to cooperate with the seat, a tube connected to and in communication with the casing, a bellows having two compartments, one in communication with the casing immediately under the valve, the other being in communication with said tube, a tubular connection extending from the mask, and in turn connecting to and being in communication with the valve casing immediately above the valve and spaced below where the first tube communicates with the valve casing, an oxygen reservoir, tubular connections between the reservoir and one of the compartments of the bellows, the other compartment of the bellows having a valve controlled exit passage.

2. A pulmotor comprising in combination with a face mask, a valve casing and a valve seat therein, and valve to cooperate with the seat, a tube connected to and in communication with the casing, a bellows having two compartments, one in communication with the casing immediately under the valve, the other being in communication with said tube, a tubular connection extending from the mask, and in turn connecting to and being in communication with the valve casing immediately above the valve and spaced below where the first tube communicates with the valve casing, said bellows having a pair of tubular handles, one being in communication with one of the compartments and provided with a check valve and acting as an air escape passage from said compartment, the other tubular handle'being in communication with the other compartment, an oxygen reservoir, a tubular connection between the reservoir and the last mentioned tubular handle. which last mentioned tubular handle is pro-- vided with a check valve.

3. A pulmotor comprising in combination with a face mask, a valve casing and a valve seat therein, and valve to cooperate with the seat, a tube connected to and in communication with the casing, a bellows having two compartments, one in communication with the casing immediately under the valve, the other being in communication with said tube, a tubular connection extending from the mask, and in turn connecting to and being in communication with the valve casing immediately above the valve and spaced below where the first tube communicates with the valve casing, said bellows having a pair of tubular handles, one being in communication with one of the compartments and provided with a check valve and acting as an air escape passage from said compartment, the other tubular handle being in communication with the other compartment, an oxygen reservoir, a tubular connection between the reservoir and the last mentioned tubular handle, which last mentioned tubular handle is provided with a check valve, said bellows comprisingopposing flexible movable walls, and means for limiting said walls in their outward movements.

4?. In a pulmotor, the combination of a face mask and a casing connected thereto, of a bellows having two compartments having passages of communication with the casing, one to force oxygen through the casing and into the mask and the lungs, the other to draw the stagnant air, a valve in the casing for controlling said passages of communication, said compartments having tubular handles, one acting as air escaping means, an oxygen reservoir, and connections between the other handle and the oxygen reservoir, and means for controlling the movements of the opposite movable sides of the bellows.

5. In a pulmotor, the combination of a face mask, and a bellows having two compartments, of means of communication between the mask and the two compartments of the bellows, and means for controlling the aforesaid means whereby oxygen from one compartment may be forced into the mask and the lungs upon depressing the bellows, and the stagnant air drawn from the lungs into the other compartment upon expansion of the bellows, means whereby oxygen is permitted to enter one compartment of the bellows, means whereb t the stagnant air is allowed to escape from the other compartment, said bellows having an intermediate collapsible wall dividing said bellows into said two compartments, said collapsible wall having reinforcing means terminating in rearwardly extending eyes, a curved rod connected to one side of the bellows and extending through said eyes, and means threaded upon the rod for lim iting the opposite movable sides of the bellows in their movements.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JURIAH HARRIS PIERPONT.

\Vitnesses D. C. TI-IoMrsoN, J. L. Cano.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0.

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