US31318A - hubbard - Google Patents

Description

G. W. HUBBARD. SYRINGB FOR BNEMA GIVING PURPOSES.

No. 31,318. Patented Feb. 5, 1861.

ated by the patient alone with the greatest UNITED STATES PATENT FFIOE.

GEO. YV. HUBBARD, OF NEYV YORK, N. Y.

ENEMA-SYRINGE Specification of Letters Patent No.

To all whom it may concern:

Be it known that I, GEORGE 1V. HUBBARD, of the city, county, and State of New York, have invented a new and Improved Syringe for Enema-Giving Purposes; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification in which Figure 1, is a Vertical central section of my invention. Fig. 2, a horizontal section of same taken in the line 00, 00, Fig. 1.

Similar letters of reference indicate cor responding parts in the two figures.

The object of this invention is to obtain a simple, eflicient, and very portable instru ment. for enema-giving purposes, and one which will admit of being applied and oper facility.

Syringes of this class, those most generally used, are constructed with an elastic or collapsible chamber and a nozzle, the liquid being expelled from the chamber by simply compressing the same. This is a very simple instrument but not by any means an economical one, as the chambers which are of india rubber soon rupture and the instru ment is rendered worthless.

The within described invention is constructed in a very simple manner but which admits of a durable instrument being furnished at a moderate cost, and one it is believed which may be used with greater facility than the ones previously mentioned.

To enable those skilled in the art to fully understand and construct my invention I will proceed to describe it.

A, represents a cylinder which may be constructed of metal or other rigid substance. This cylinder has a smaller cylinder B, fitted concentrically within it, both cylinders being closed or covered at the top by the same-cap a. The lower ends of the two cylinders are fitted to a base C, by having the lower end of cylinder B, screw on a semi-spherical chamher 5, at the center of the base G, as shown clearly in Fig. 1. The lower ends of both cylinders rest on" a circular packing c, of leather or other suitable material placed on the base.

Vithin the smaller cylinder B, there is 31,318, dated February 5, 1861.

placed a piston D, the rod (Z, of which passes up through the center of cap a. Within the cylinder B, and below the piston D, there is placed a spiral spring E, the lower end of which rests on the top of the chamber Z). The spring E, has a tendency to keep the piston D, at the upper end of the .cylinder as shown in Fig. 1.

\Vithin the semispherical chamber 7) there is placed a ball valve 6, which is directly over an opening or passage f, in the base C.

The interior of the cylinder A, is an air chamber which communicates with an opening or passage 9, in the base, the passage be ing in communication with an elastic tube F, which is provided with a nozzle h, at its end. The air chamber communicates with the interior of the smaller cylinder B by means of a passage 2', which extends from the semi-spherical chamber Z), through the base C, and has a valve j, at its outer end opening upward.

The bottom of the base C, has three or more projections is, on it to keep the orifice of passage f, above the surface on which the base 0, rests or is supported.

The operation is as follows: The patient places the instrument in an upright position in a vessel G containing the liquid to be used, inserts the nozzle it, into the rectum, and depresses the piston D, within cylinder B, and allows it to rise by the action of spring E. A reciprocating motion is thus given the piston D, by simply pressing down the plunger each time after being elevated by the spring. The smaller cylinder B, fills as the piston D, rises, the ball valve 0, opening upward as the piston ascends. As the piston is forced down the valve 6, closes and the liquid in B, is forced through passage 2',

into the air-chamber or cylinder A, the valve j, opening upward. The liquid passes from the air chamber through the passage g, and through the tube F, and nozzle h. The gravity of the instrument is sufficient to keep it in proper position while being operated.

The instrument it will be seen may be placed in a large basin containing the liquid so that any desired quantity may be injected into the system at one operation. This, so far as I am aware is an advantage not attending other syringes, the latter requiring A syringe constructed in the particular to be filled before being used and therefore manner herein shown and described so as to limited in operation to the capacity of their operate as set forth. cylinders or reservoirs. GEO. W. HUBBARD.

5 Having thus described my invention What Vitnesses:

I claim as new and desire to secure by Let- 1 G. V. OOWTAN ters Patent, is LEWIS A. TUCKER.

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