US896824A - Mechanical respirator. - Google Patents

Description

\ 1 PATENTED AUG. 25, 1908. A. N. HABBERLEY. MECHANICAL RESPIRATOR- APPLICATIOH TILED JUNE 19 1907 2 sHEETs EHBET 1.

M71 aflauuqo Winn a PATENTED AUG. 25

A. HABBERLEY MECHANICAL RESPIRATOR.

PPLIO TIOH FILED] N111 190 A A U 9 7 2 SHEETS-SHEET Z.

UNITED STATES PATENT OFFICE.

ALBERT N. ILNBIH'ZRLEY, 0i NEWTON, MASSACHUSETTS.

MECHANICAL RESPIRATOR.

of 1\'liddlesex and State of Massachusetts,

have invented certain new and useful Improvements in .\lechanical liespirators, of which the following is a specification.

This invention has for its object to devise meclnmici'il means for inducing respiration in cases of apparent death from drowning, asphyxia or sufl'ocation. The mechanism alternately inflating and exhausting the lungs so as to aerate the blood and restore, it possible, natural respiration should it be possible to overcome the efl'ect of the shock or other cause of stopping the natural functions of the respiratory organs.

The invention provides a novel mechanism embodying two pneumatic devices, the one adapted to inflate the 'lungs and the other to exhaust the air from the. lungs, said inflating and air exhausting devices being provided with an automatically operated valve and with valve inlet and outlet to prevent injury to the tissues of the lungs by a too great inflation or suction.

For a full understanding of the invention and the merits thereof and also to acquire a knowledge of the details of construction and the means for efieeting the result, reference is to be had to the following description and accom anying drawings.

Whi e the invention may be adapted to different forms and conditions by changes in the structure and minor details without departing from the spirit or essential features thereoi, still the preferred embodiment is shown in the. accompanying drawings, in which:

"Figure I is a perspective -view of a respiratory mechanism embodying the invention.

Fig. 2 is a vertical central section of the appliance, parts being broken away. Fig. 3 is a horizontal section on the line :rm of Fig. 2. Fig. 4 is a. central longitudinal section of the mouth piece. Fig. 5 is a front viewof t: 1 month piece.

Corresponding and like parts are referred to in the following description and indicated in all the, views of the drawings by the same reference characters.

Patented Aug. 25, mos.

1907. Serial No. 379,815.

The appliance comprises twin pumps 1 and 2, each consisting of a cylinder and a piston arranged tooperate therein, the piston rods 3 being connected by means of a handle 4 common to each. The pumps may be con- -nected in any manner and are. yoked near their lower ends or coupled in any substantial way; The pump 1 is of the suction type, whereas the pump'2 is of the pressure variety and is designed to inflate the lungs, whereas the pump 1 is intended to exhaust the air from the lungs. The pumps 1 and 2 are representative -of devices commonly em- )loyed for inflating and expanding articles in the mechanic arts. A pipe 5 connects the lower ends of the pump barrels or eylin-' dersand is in communication with each and is provided in its length with a three-way valve 6. A coupling 7 projects from the casing of the three-way valve and a rubber tubing 8 is connected thereto. ,is mitomatically actuated at each stroke of the pump piston, whereby the suction and pressure pumps are alternately brought into play to exhaust and inflate the lungs in a. manner approximating natural respiration so as to induce the same if life is still present in the patient. A handle 9 projects from the plug or operating part of the valve and a rod or bar 10 is connected thereto. A cross head 1.1 is applied to the upper end of the bar or its movements by means of the iston rods 3, the. end portions of the cross ead being apertured for said piston rods to pass loosely therethrough. at its upper end to a handle 4 and is provided at its lower end with a stop 13. An adjustable stop 14 is secured to the upper portion of the tappet rod 12 and is arranged above the cross head 11. I4 constitute tappets to engage with the cross head 1] am operate the valve 6 to throw one pump out of action and the other pump into operative position. The tappet l3 isarranged to engage with the undersu'le of the cross head 11 when the pistons are completing their up stroke and the tappet I4 is arranged to engage with the upper side of the cross head when the rump pistons are about reaching the limit of t leir down stroke.

rod 10 and is held in place and directed in A tappet rod 12 is connected.

By having the stop or tappet l4 adjustable,

The valve 6 The steps 13 and the effective stroke of the pump pistonsmay be regulated to meet existing conditions.

The stop or tappet 13 is preferably fixed.

The suction pumpjs provided witlra check valve 15 adapted to open outward and to close inward.

outward and to open; inward. -'1l'ie. cheek valves 15 and 16 are of similar construction and are fitted to the lower ends ofthepump barrels, eachconsisting of two members united by means of a screw thread and mclosing a valve between them, the valve and its scat being of tapered formation. As

the pistons move upward in the pump .barrels, the check valve 15 closes, thereby permitting the pump 1 to create a suction in the tube 8 so as to exhaust air from the-- rel'l to be expelled, whereas thecheck valve;

15 closes'to admit of the air in the lower portion of the pumpburrel to be forced into the lungs of the patient. It is to' be'understood that as the pump pistons reach the limit'of their travel in each direction, the valve 6 is operated to reverse the action of the pump to produce pressure and exhaustion of the 'air in alternation, with the result that the 'lungs are alternately expanded and contracwd. It will be understood that pure air is supplied at each stroke of the pump '2 and that the air forced into the lungs upon the down stroke of the pump pistons is exhaustedupon'the up stroke of said pistons, thereby supplying the lungs with fresh and pure air at each operation.

Injury to the lung tissue is prevented by a too great pressure" or suction, since the valve 6 is reversed an instant before the pistons complete their stroke in each direction, hence upon the up stroke of the pistons, should there be any suction upon the lungs, the air fromthe suction pump 1 is drawn through the pipe 5, valve 6 and inlet 16, thereby relieving the lungs of any suction which would tend to produce injury. This operation takes place near the completion the up stroke of the pump pistons at the moment the .valve 6'is reversed. Upon the down stroke of the pump pistons, should there be a pressure on the lungs, the valve 6 is reversed a moment before said pistons complete their down stroke, hence the air is forced from the pinup 2 through the ipe 5, valve 6 and out tsrough the check va ve 15, with theresult that the lungs are relieved of injurious pressure.

The mouth piece consists of complemental The pressure'pump 2 is ro-, vided' with a check valve 16 adapted to c oscplates 17 and 18 which are curved to conform apprm'nnatelyto the shape of the llps. which latter'are clampedbetween sald plates when the appliance is placed in position for use;

The plate 17 is inirmluced into the mouth ol' the patient \\'hereas the plate 1h is placed over the mouth. the lips being confined between the plates ITIand 1S. A hollow stem 19 projects-from.the plate 17 and passes loosely through a boss 20 of the plate 1.\ and is threaded to receive a set-nut l by means foi whichthe plate 18 .is Iorced towards the plate 17' so as to clamp the hps between the two plates. A coupling 22 at the. outer end of the stem-19 receives the end oi the tube 5 connected to the mouth piece.

' Having thus deserilual'the invent ion, what "is claimed as new is:-

1. In a mechanical respirator, the coininnation of asuction and-a n'essure (l\\'l( a tube a valve connection )el-ween the tube 'and the two devices, actuating means for the suction and pressure .devices, and means positively operated by the suction and pressure actuating means for moving the valve. to throw the t'ulie alternately into communication with the. suction and pressure devices.

2. In a mechanical respirator, the combinationofsuction'and pressure pumps, a tube, a valve comrection between the tube. and the two pumps, operating means for the pumps, a-t-appet-rod carried by tlm-pump operating means and provided with spaced tappets,

, and connecting means between the valve and tappet rod for positively moving the valve tothrow the tube, alternately into'communica tion with the two pumps.

" 3." In a mechanical respirator, the combination of suctionand pressure pumps,-a tube, a valve connection between the tube and the pumps, means for operating the pumps, a tappet rod carried by the pump operating meansfni fixed and an adjustable tappet a p- )llO-tl to the tappetrod, and commuting means raving a part arranged in the path of the said tappets and serving to positively move the before mentioned valve to throw the tube alternately into connnunication with the two pumps.

4. In a mechanical respirator, the combination ol'companion suction and pressure pumps, a'connection between said pumps, a three-way valve. in the length of said connection, operating means [or the pumps, a tap pet rod extended from the pump operating means, a lixcd and an adjustable tappet on said tappet rod, and connecting means leading fromthe three-way valve and having a portion extended into the path of the said tappets to be alternately engaged thereby for reversing the valve, whereby the suction into and out o operation.

Witnesses ALBERT N. HABBERLEY! [L- 3.]

ELMER E. B10 KFORD, ARTHUR H. HARDY.

the lips when the inouth piece -is in po- In testimonj whereof I affix my signature in presence of two witnesses.

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