AN IMPROVED APPARATUS FOR SURGICAL INJECTIONS'
Year: 1883

page_text: E
LETTERS PATENT to Oliver Imray of No 28 Southampton Buildings Chancery
Lane in the county of Middlesex for an Invention of AN IMPROVED
APPARATUS FOR SURGICAL INJECTIONS' "
communicated to him from abroad
by Aimé René Larger of Paris in the Republic of France
PROVISIONAL SPECIFICATION left by the said Oliver Imray at the Office
of the Commissioners of Patents on the 28th April 1883.
OLIVER IMRAY of N° 28 Southampton Buildings Chancery Lane in the county
of Middlesex "AN IMPROVED APPARATUS FOR SURGICAL INJECTIONS "
[com-
municated to him from abroad by Aimé René Larger of Paris in the Republic
of France]
Injection apparatus according to this invention consists of the following parts:
an elastic ball with a flexible tube extending down from it provided at its lower
end with a filtering valve opening upwards, and with a flexible tube extending up
from it provided with a discharge valve, a second or upper elastic ball into the
lower part of which the discharge valve opens, and from the upper part of which
extends a flexible tube provided with a stop cock and suitable nozzle. The upper
elastic ball is preferably covered with a network.
In employing this apparatus, the stop cock is opened, the ends of the two tubes,
that is to say the end having the filter valve and also the nozzle end, are immersed
in the liquid to be injected, the upper ball is compressed and the lower ball is
alternately compressed and liberated, so as to give a pumping action, until all the
air is driven out of the apparatus as may be ascertained by the cessation of bubbles
from the nozzle. The stop-cock is then closed and the pumping action of the
lower ball is continued until the upper ball is charged with liquid. The stop-cock
is then opened and the nozzle being introduced into the orifice of the body, the
upper ball is compressed causing the liquid to be injected.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Oliver Imray in the Great Seal Patent Office on the 17th October
1883.
"
OLIVER IMRAY of N° 28 Southampton Buildings Chancery Lane in the County
of Middlesex, "AN IMPROVED APPARATUS FOR SURGICAL INJECTIONS
A com-
munication to me from Abroad by Aimé René Larger of Paris in the Republic
of France
Injection apparatus according to this invention is constructed as shewn in the
accompanying Drawing. There are two elastic balls or bulbs B and B', the lower
one of which B² constitutes a pump, having at its lower end a piece of tube T¹
terminating with a filtering suction valve SF, and at its upper end a pipe entering
the ball B and terminating in a discharge valve S. From the ball B leads a
pipe T to a suitable nozzle E, a stop cock R being introduced into any part of the
pipe T or its nozzle E. The ball B is covered with a net work F which may be
of silk, flax or other cord impregnated with tannin or sulphate of copper, or water-
proofed by wax, gutta percha or the like.
In operating with this apparatus, the air has in the first place to be expelled.
This is done by opening the stop cock R, immersing the two ends, that is to say
the valve end SF and the nozzle E, in the liquid that has to be injected, com-
pressing the ball B and alternately compressing and releasing the bulb B¹ so as to
give a pumping action until all the air is driven out, as may be ascertained by the
cessation of bubbles from the nozzle. The apparatus is then charged by closing
the cock R and continuing the pumping action of the bulb B' until the ball B is
distended by the liquid as far as the network F will allow. The nozzle E being
then introduced into the orifice of the body, the cock R is opened, and the ball B,
contracting, forces the liquid until its elasticity is exhausted. When the elastic
force is insufficient, the injection may be assisted by compressing the ball B by
hand, or raising it so as to have the aid of a liquid column. When the operation
is ended, the nozzle is withdrawn, and the apparatus is emptied by a little
pumping with the bulb B¹.
'
Having thus described the nature of this invention and in what manner the
same is to be performed, as communicated to me by my foreign correspondent, I
claim
The herein described apparatus for surgical injections.
In Witness whereof I the said Oliver Imray have hereunto set my hand and
seal this Seventeenth day of October in the year of our Lord One thousand
eight hundred and eighty-three.
ALTHOD THD 7