US2036371A

US2036371A - Resuscitating apparatus

Info

Publication number: US2036371A
Application number: US740180A
Authority: US
Inventors: Louis V Snyder; Leggerle Thomas
Original assignee: Individual
Current assignee: Individual
Priority date: 1934-08-16
Filing date: 1934-08-16
Publication date: 1936-04-07
Anticipated expiration: 1953-04-07

Description

April 7, 1936. L. v. SNYDER EIAL 2,036,371

RE SUSC I TATING APPARATUS Filed Aug. 16, 193

I [NI/EN 012:

3 xwrlw ATTORNEY Patented Apr. 7, 1936 UNITED STATES RESUSCITATING APPARATUS Louis V. Snyder and Thomas Leggerie, Mount Vernon, N. Y.

Application August 16, 1934, Serial No. 740,180 Claims. (01. 128-28) Our present invention relates to resuscitating apparatus, and aims to devise devices of the general character indicated, which aresimple in construction, which are easy and economical to oper- 5 ate and assemble, and which are admirably adapted to perform the intended functions as hereinafter more specifically set forth.

In the accompanying specification we shall describe,. and in the annexed drawing show an illustrative embodiment of the resuscitating apparatusof the present invention. It is, however, to be clearly understood that we do not wish to be limited to the exact construction described and shown herein for purposes of illustration only;

Before describing our invention in detail, we deem it advisable, briefly, to refer to the prior art in the field to which the present invention relates, the disadvantages thereof, and the manner in which the'present invention overcomes and eliminates such disadvantages.

It has, heretofore, been the practise in applylng artificial respiration ,to a non-breathing patient requiring the same, to alternately apply and relieve pressure on the back immediately below the patients lower ribs so as to bring about compression and expansion of the lungs, thus forcing air out of the patients body and introducing air into the patients body because of the vacuum created upon the release of the pressure."

3 The method generally used is known as the Schafer prone-pressure method". In this method the desired pressure is obtained by the use of the hands alternately pressing and then letting go so as to permit a resumption of the normal position of the particular organs of the body effected? V There are certain disadvantages inherent in the use of such a method of resuscitation which disadvantages the present invention successfully overcomes. In the first place by using the hands to exert the necessary pressure, we necessarily bring into the picture the human element. By that we mean that it is most difiicult to apply the proper amount of pressure, the length of time that the pressure should be maintained before releasing the same. and the timing or cadence of the alternate application and releasing of the pressure. Furthermore, inasmuch as the person 5 applying the artificial respiration is using his hands, the latter are not free to do anything else,

and it is often necessary that the mere application of artificial respiration is not-suflicient to revive the patient, and auxiliary means must be 55 resorted to. Obviously, such means cannot be resorted to as the hands of the person applying the artificial respiration are not free.

The present invention overcomes and eliminates these disadvantages by providing a means for practising the so-called prone-pressure 5 method", mechanically, thus eliminating the human element, assuring the proper amount of pressure being applied, the proper length of time for the application of each stroke of pressure, and assuring the timing or cadence ofthe appli- 10 cations and eliminating the necessity of changing operators which change always acts to the detriment of the patient. It furthermore permits the operator the free use of his hands so that should any auxiliary treatment be necessary in conjunc- 15 tion with the artificialrespiration, the operator is free to carry out such treatment. Other advantages of the present invention wilhbecome obvious to those skilled in the art to which the present invention relates as the detailed descrip- 20 tion thereof progresses.

In the accompanying drawing:-

Fig. 1 is a side elevational view of the aforesaid illustrative embodiment of the'resuscitating apparatus of the present invention; 2

Fig. 2 is a transverse sectional view of the same, taken along line 2-2 of Fig. 1; and

Fig. 3 is a perspective view of the same, illustrating the manner in which the entire apparatus may be collapsed, and thereby made portable. 30

Referring now more in detail to the aforesaid illustrative embodiment of the present invention, and with particular reference to the drawing illustrating the same, reference character I generally designates a. platform sufficient in 5 length when opened to support the body of a person requiring artificial respiration, the platform consisting, preferably, of three (3) sections hinged as at Ia and supported upon a series of legs lb. Mounted beneath the central section of the platform I is an electric motor 2, the drive shaft of which operates, through a reducing gear train 3 (not specifically shown), a worm wheel 4. The worm wheel 4 is fixed upon a shaft 5 which is journalled in brackets 6 fixed to the under-side of the central section of the platform I, and mounted upon the shaft 5 is a pair of cams I maintained in contact with a cross-bar 8 by means of expansion springs 9 to which the cross-bar 8 is fixed. The springs are coiled about reciprocable rods Ill, and abut the under-side of the central section of the platform I, and discs I l fixed to the lower ends of the rods l0.

'The rods 10 are maintained at an angle other than a right angle with respect to the platform as I, and are reciprocable in bushings I2 fixed in the central section of such platform. The upper ends of the rods III are provided with notches I3 with which there are engageable thurnbscrews l4 carried in clamps IS, the arrangement being such that the height of the clamps l5 from the platform I may be varied, as will also be the apparatus supported by such clamps, and which will now be described. Carried by the clamps I5 is a cross-bar I6, this cross-bar being supported in such manner as to be permanently but rotatably fastened to one of the clamps so as to allow the same to be swung about to permit the patient to be placed in proper position and being supported by the remaining clamp by means of a catch H. The cross-bar i6 is provided with a series of notches H! with which there is engageable a pair of thumbscrews l9 carried in clamps 20 adapted to support pressure applying elements 2| which may be in the form of padded knobs. The arrangement of the elements 2| is such as to permit their adjustment depending upon the size of the patient to be treated.

When not in use, the foregoing apparatus can be made portable by merely folding down the outer sections of the platform I as shown in Fig. 3 of the drawing, and providing the exposed apparatus above the central section of such platform with a cover A having a handle B as indicated in dotted lines in the same figure of the drawing.

This completes the description of the aforesaid illustrative embodiment of the present invention and the operation thereof may-be briefly summarized as follows:

A person requiring artificial respiration is placed upon the platform I, the cross-bar l6 being swung out of the way to permit this and then the cross-bar I6 is swung back and is raised or lowered, and the clamps 20 are longitudinally adjusted until the pressure applied elements 2! are brought into proper position in relation to the patients back and immediately beneath the lower ribs. Then, after fastening the various elements in place by means of the thumbscrews l4 and IS, the motor 2 is operated to bring about the rotation of the shaft .5. Through the cams l the cross-bar 8 is moved away from the shaft 5 until the cams reach the maximum radius of operation. Atthat time the cross-bar 8 is returned to its normal position by the action of the springs 9. Through the rods l0 and crossbar IS, the same motion is imparted to the crossbar 8, and thus pressure is alternately applied and released upon the patient so as to bring about artificial respiration. Such artificial respiration may be continued until the patient is revived. The movement of the elements 2| is downwardly and forwardly and upwardly and rearwardly.

This completes the description of the operation of the aforesaid illustrative embodiment of the present invention, and it will be seen therefrom that by means of the resuscitating apparatus of the present invention the human element referred toin the earlier parts of this specification has been removed, the proper amount of pressure,

and the proper amount of time for the exertion of such pressure can be obtained, the timing or cadence of the alternate application and relief of the pressure is perfect, and the hands of the operator are free to provide the patient with any auxiliary treatment that may be necessary. In addition to these advantages, it will be clear that the apparatus is simple in construction, easy, and economical to assemble and operate, and exceedingly efficient in performing the intended functions. Other superiorities and advantages of the resuscitating apparatus of the present invention will be obvious to those skilled in the art to which the present invention relates.

What we claim as our invention is:

.- 1. Resuscitating apparatus comprising a collapsible and portable platform, receptive of a patient requiring resuscitation, and supporting pressure applying means, and means for alternately moving said pressure-applying means downwardly and forwardly, and upwardly and rearwardly.

2. Resuscitating apparatus comprising a collapsible and portable platform, receptive of a patient requiring resuscitation, and supporting pressure-applying means, means to adjust said pressure-applying means against the patients back adjacent his lower ribs according to his size,

and means for. alternately moving said pressureapplying means downwardly and forwardly, and upwardly and rearwardly.

3. Resuscitating apparatus comprising a collapsible and portable platform, receptive of a patient requiring resuscitation, and supporting pressure-applying means, cam-actuated means for moving said pressure-applying means downwardly and forwardly, and resilient means for returning said pressure-applying means to normal position by moving the same upwardly and.

rearwardly.

4. Resuscitating apparatus comprising a collapsible and portable platform supporting pressure-applying means, means to adjust said prespressure-applying elements and said source of power to alternately move said pressure applying elements downwardly and forwardly, and upwardly and rearwardly, said means including a cross-bar connecting said pressure-applying elements,cam means driven by said source of power cooperable with said cross-bar to impart said downward and forward movement to said pressure-applying elements, and spring means to impart said upward and rearward movement to said I pressure-applying elements after said cam means has reached its maximum radius of operation.

LOUIS V. SNYDER. THOS. IMGERIE.