Improved Syringe.
Year: 1891

page_text: Date of Application, 21st Mar., 1891
Complete Specification Left, 21st Jan., 1892-Accepted, 27th Feb., 1892
PROVISIONAL SPECIFICATION.
Improved Syringe.
I, WILLIAM HENRY MUNNS, of 106, 107, and 108, Victoria Chambers, 55 and
56 Chancery Lane, in the County of London, Patent Agent, do hereby declare
the nature of this invention (a communication to me from abroad by Henry
G. Leisenring, of Wayne, Nebraska, U.S.A. Doctor of Medicine,) to be as
follows:---
This invention relates to that class of syringe having a rubber bulb for drawing
in and ejecting the fluid, and the object of the invention is to provide a
perfect and durable article than heretofore.
more
The syringe comprises a hard rubber rectal tip having a screw-threaded tapered
portion. A hard rubber vaginal tip has a screw-threaded portion which engages
the threaded tapered portion of the rectal tip, and has a reduced end. A bulb is
secured to the vaginal tip and comprises a single piece, a firm thick half and a thin
flexible half, and a hard rubber handle is secured centrally to the flexible half of
the bulb.
1
Improved Syringe.
I, WILLIAM HENRY MUNNS, of 106, 107, and 108 Victoria Chambers,
Chancery Lane, in the County of London, Patent Agent, do hereby declare
the nature of this invention (a communication to me from abroad by Henry G.
Leisenring, of Wayne, Nebraska, U.S.A. Doctor of Medicine,) and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:―
This invention relates to certain new and useful improvements in rectal and
vaginal syringes of that class wherein the liquid is caused to flow through the
rectum or vagina and out again through the syringe without withdrawing the
rectal or vaginal tip and without wetting or soiling the clothing or necessitating
the employment of a receptacle.
The object of the present invention is to provide an improved syringe of this
character which shall not bend while using and obstruct the flow of the liquid.
It has for a further object to provide for the more complete injection in a direct
line with the opening in the tip, which opening should be large enough to allow all
the discharge to pass freely.
I provide a hard-rubber neck to the tip, which prevents bending. I make the
tip detachable, so that it can be readily interchanged for one of another character
when desired. I provide the bulb with a ring-handle, which aids materially in the
suction by drawing out the bulb. This handle also serves as a means of suspending
the syringe when not in use, so that it will drain and prevent the bulb from rotting.
I provide a bulb by which all the fluid may be injected and removed by a pumping
motion not possible with many other syringes.
Other objects and advantages in the invention will hereinafter appear, and the
novel features thereof will be specifically defined by the appended claim.
The invention is clearly illustrated in the accompanying drawings, which, with

page_text: the letters of reference marked thereon, form a part of this Specification, in
which
Figure 1 is a side view of my improved syringe. Figure 2 is a central longitu-
dinal section through the same.
Referring now to the details of the drawings by letter, A designates the rectal
tip, which is formed of hard rubber and at its inner end formed with a screw-
threaded tapered portion a, which is connected detachably with the hard-rubber
vaginal tip or neckpiece B, by being screwed into the interior screw-threaded end
thereof, as shown in Figure 2, the screw-threaded portion of the vaginal tip or
neck being also on an incline or taper, so that when the two parts are screwed home
there will be a smooth continuous surface both upon the outside and upon the
inside, as shown in Figure 2. This avoids all impediments to the flow of the
liquid, as will be readily understood. This vaginal tip or neck is dilated to distend
the opening of the vagina to prevent the fluid used in the injection from flowing
out. This tip or neck is secured to the rubber bulb by a piece of hard rubber
and screws on to the projecting threaded portion thereof.
9,
One half of the bulb is firm and thick and the other half thin and flexible, to
push into the firm portion when used in injecting, and designed to be withdrawn by
the hard-rubber handle C, which is connected thereto by a screw-threaded plate c,
which is placed upon the inside of the bulb and at the outer end thereof and
screwed into the screw-threaded socket of the handle, as shown clearly in
Figure 2.
The bulb is formed in a single piece of soft rubber, with one half firm and thick
and the other half thin and flexible, so as to avoid the danger so common in this
class of devices of leakage and rot at the joints.
This hard-rubber ring-handle forms an important element of the device. It
serves to aid suction by drawing the thin part of the bulb out; also to hang the
bulb up by, so that it will readily drain off all its contents. Without the handle,
when the thin part of the bulb is pressed in, it is very difficult to withdraw it,
owing to the inward suction of the parts. The parts being thus detachably con-
nected provides for ready separation for the purpose of cleaning or repairs, and
also provides for the replacing of any one part which should become broken or
injured without the necessity of purchasing an entirely new syringe, thus greatly
benefitting the user.
The hard-rubber vaginal tip or neck performs an important function not attained
by a flexible rubber neck or tip. It prevents the distorting of the passage through
which the liquid flows, and thus I attain a much better and more uniform flow of
liquid and consequently a better result.
Having now particularly described and ascertained the nature of this my said
invention, and in what manner the same is to be performed, I declare that what
I claim is :
As an improved article of manufacture, the syringe herein described, consisting
of the hard-rubber rectal tip having screw-threaded tapered portion, the hard-
rubber vaginal tip having screw-threaded tapered portion engaging the threaded
tapered portion of the rectal tip, and having reduced end, the bulb secured to the
vaginal tip and comprising in a single piece a firm thick half and a thin flexible
half, and a hard-rubber handle C, secured centrally to the flexible half of the bulb,
all substantially as shown and described.
Dated this 21st day of January 1800