US552901A - Inhaler - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

J. K. GAILEY. INHALBR.

No. 552,901.` Patented Jan, 14, 1896'.

(Nc Model.) l 2 Sheets-Sheet. 2. J. K. GAILBY.

INHALBR.

No. 552,901. Patented Jam. 14, 1896.

` t Jaim gm@ UNITED STATES PATENT OEEicE.

JOHN l. GAILEY, OF DETROIT, ASSIGNOR, BY MESNE ASSIGNMENTS, OF ONE HALF TO CLEMENT A. DUNBAR, OF SOUTHFIELD, MICHIGAN.

INHALER.

SPECIFICATION forming part of Letters Patent No. 552,901, dated January 14, 1896.

Application tiled January 29, 1895. Serial ll'ol 536,598. (No model.)

To all whom it' may concern:

Be it known that l, JOHN K. GAILEY, a citizen ot' the lUnited States, residing at Detroit, in the county of XVayne and State of Michigan, have invented certain new and useful Improvements in Devices for Administering Anesthetics, of which the following is a specification, reference being had therein to the accompanyin g drawings.

The invention consists in the construction of a device for administering anesthetics, and particularly in its construction whereby the Y strength of the anesthetic, or the proportion of the anesthetic vapor and air can be varied as desired.

The invention further consists in the construction of the respirator-hood and anesthetic vessel in a single structure, whereby its construction. and use are simplified and its manufacture cheapened, all as more fully hereinafter described.

In the drawings, Figure lis a sectional elevation of the anesthetic vessel and its connection. Fig. 2 is a top plan view thereof. Fig. 3 is a front elevation of the cap for the vapor-chamber. Figs. 4, 5, and 6 are vertical sections through the controlling-valve, showing diderent positions. Figs. 7 and 8 are vertical sections through the air-port or air-valve, showing the different positions. Fig. 9 is an elevation of the device as a Whole, including the respirator-hood.

A is the anesthetic or vapor chamber, preferably a jar-shaped glass vessel, having the short neck B, with which the cap O is adapted to detachably engage.

On the top of the cap is a valved body or casing D, in which is the plug-valve E, having a linger-piece F for turning it, and an indexfinger G which moves across the graduated index-plate H on the front of the casing, as plainly shown in Fig. 3.

The valve-casing is provided on opposite sides with the air-ports a l) controlled by the plug in which is the passage c controlling the amount of air into the tube d which connects with the port b and extends to near the bottom of the vapor-chamber. rlhe valve-casing is also provided with the vapor-ports eandfon opposite sides and With the intermediate airport h, and the plug in line with these ports is provided with the passage if, the tcp k of which is enlarged, shown in Figs. 4, 5 and G. The port f connects with the dischargepipe g which leads to the respirator-hood l, and this hood is provided with the checkvalves J J', so constructed that the inspiration of the patient will close the valve J and open the valve J, and the expiration will close the valve J and open the valve J', so that the inhalation will be taken from the tube g and the expiration Will pass directlyY out from the hood.

When the device is adjusted for use with the hood upon the face of the patient and the valve in the position shown in Figs. 1 and 4, the air-inlet to the vapor-chamber is closed, While the air-'port It is open and will admit air freely to the patient. As the valve is turned the air-inlet port c through the plug is opened, as shown in Fig. 8, the air-inlet port It is proportionately closed and the vaporport e is proportionately opened, as shown in Fig. 6, so that the inspiration of the patient Will draw through the tube g a portion of air and a portion of anesthetic vapor, the proportion of which will be indicated upon the dial. For instance, one-quarter anesthetic vapor being the first indication shown in Fig. 3, as the plug is turned farther in the same direction the direct air-port h is proportionately closed and the air-port c proportionately opened until the valve is thrown to its eX treme limit, (shown in Fig. 5,) when the patient Will receive by inhalation the full strength of the anesthetic vapor. The physician or surgeon thus is enabled to graduate to a nicety the strength of the anesthetic administered and can increase or decrease it at any time by simply changing the valve.

In Fig. S) I have shown the respirator-hood formed with means for securing it to the base of the chamberA, and the substantially rigid discharge-tube g shaped to serve as a handle by means of which it may be carried. This is especially advantageous, as the attendant who is administering the anesthetic can support the entire device in one hand, having the other hand free for regulating the valve or to perform other duties.

IOO

By making the hood detachable from the vessel it may be readily cleansed or repaired.

It will be observed that at all times the respiration of the patient will in no Wise be impeded regardless of the strength of vapor which is being administered, for the portage for supplying vapor or air to the supply-tube remains substantially constant, regardless of the various adj ust-ments of the valve.

IVhile I have shown a specific construction of regulating-valve and a specific construction of combined vapor-chamber and hood, I do not desire to be limited to such construe tions, as I believe I am the first to construct a device of this kind for applying anesthetics having a controlling-valve by means of which the proportions of air and anesthetic vapor may be varied at the Will of the operator.

Vhat I claim as my invention isl. A device for administering anesthetics, comprising an anesthetic vessel, a discharge pipe leading therefrom, a valved hood on the outer end of the discharge, an air inlet port into the discharge pipe, an air inlet port into the vessel and valves for synchronously opening the air inlet port into the vessel and the vapor outlet therefrom and correspondingly closingthe airport to the discharge pipe, substantiallyas described.

2. A device for administering anesthetics comprising a vessel, a valved hood secured directly to the vessel, a supply pipe having a rigid section leading from the vessel to the hood and forming a handle, and valves for controlling the supply of anesthetics to the hood, substantially as described.

3. In a device for administering anesthetics, the combination with a receptacle, of an air supply pipe leading into the same, a discharge pipe leading from the receptacle and having an extern al inlet port at its inner end` a valved hood on the outer end of the discharge, and means for closing the discharge from the vessel and the air supply and opening the external inlet port, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN K. GAILEY.

Witnesses JAMES WHITTEMORE, L. J. IVHITTEMORE.

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