Improvements in Collapsible Bags used in connection with the Administration of Anaesthetics, and for similar Purposes.
Year: 1899

page_text: VISIONAL SPECIFICATION.
Improvements in Collapsible Bags used in connection with the
Administration of Anaesthetics, and for similar Purposes.
I, ERNEST WILLIAM POOLE, of 54, Poland Street, London, W., Gentleman, do
hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in the elastic collapsible bags used in
connection with the administration of chloroform, ether and other anaesthetics,
and for similar purposes in the practice of surgery and medicine, said bags being
designed to receive and retain the exhaled breath of the patient on each exhalation
and to return upon each inhalation.
In the general practice, where an anaesthetic is to be administered to several
patients consecutively, each patient breathes into the same bag with the con-
sequence that it quickly becomes fouled and wet from the breath, and the object
of this invention is to construct a bag of this kind in such a manner that the
inner moistened and foul surface can be quickly and easily cleaned for which
purpose the bag is constructed in such a manner as to allow of its readily being
turned inside out when required.
'
In carrying my invention into practical effect, the bag is constructed mainly in
the ordinary manner and secured at its upper extremity to a metal collar or ring
of special construction for the purpose in view. This collar or ring is formed
in two parts, the upper edge of the bag being turned over the top of one of the
parts where it is bound in position in any suitable manner, while the second
part of this said collar or ring is pressed over the first mentioned part in such a
manner that the edges of the opening of the bag are secured to the inner peri-
phery of the completed collar or ring at a point approximately mid-way between
the top and bottom edges thereof, and in such a manner that the bag itself may
be passed through the said ring in either direction so as to bring what has pre-
viously been the inner surface of the bag to the outside, the outside surface then
constituting the inner surface, and in this manner the bag is reversible at will and
after having been fouled upon its inner surface may be turned inside out and
used in that position with equal advantage and effect.
To facilitate the passing of the bag through the collar or ring for the purpose
of turning it inside out, the bottom of the said bag is preferably furnished with
small circular hole having a tubular extension on each side through which passes
short plug half of which is contained within the bag, the other half projecting
hrough the bottom thereof upon the outside, so that by raising this plug and
assing the inner portion through the aforesaid collar or ring
rasped and the bag, easily drawn through the ring, provided that, in the case
may be readily
f a rubber bag, its inner surface be sufficiently moistened.
The top of the aforesaid collar or ring is suitably chanel
A

page_text: connection of any required kind leading to a face mask or to apparatus or con-
nections as required.
Dated this 14th day of July 1899. ·
F. G. CASSELL
(Of Cassell & Co.),
22, Glasshouse Street, Regent Street, London, W.,
Agent for the Applicant.
Improvements in Collapsible Bags used in connection with the
Administration of Anaesthetics, and for similar Purposes.
*
I, ERNEST WILLIAM POOLE, of 54, Poland Street, London, W., Gentleman, do
hereby declare the nature of this invention 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 improvements in the elastic collapsible bags used in
connection with the administration of chloroform, ether and other anaesthetics,
and for similar purposes in the practice of surgery and medicine, said bags being.
designed to receive and retain the exhaled breath of the patient on each exhalation
and to return it upon each inhalation.
In the general practice, where an anaesthetic is to be administered to several
patients consecutively, each patient breathes into the same bag with the con-
sequence that it soon becomes fouled and wet from the breath, and the object of
this present invention is to form a bag of this kind in such a manner that the
inner moistened and fouled surface can be quickly and easily cleaned, for which
purpose the bag is constructed in such a manner as to allow of its being readily
turned inside out when required.
In order that this invention may be fully understood I will now proceed to
describe same with reference to the accompanying drawings in which:-
:-
Fig. 1 is a side elevation of a collapsible bag constructed according to this
invention and
Fig. 2 is a vertical section of same in a second position.
In carrying this invention into practical effect, the bag c is constructed mainly
in the ordinary manner and secured at the top or upper extremity to a metal collar
or ring of special construction for the purpose in view.
This collar or ring is formed in two parts a, b, the upper edge c¹ of the bag c
being turned over the top of the lower part 6 of the said collar or ring, where it
is suitably secured, while the second or upper part a is pressed over the lower
part b, in such a manner, that the edges of the opening of the bag are secured
to the inner periphery of the completed collar or ring at a point approximately
midway between the top and bottom edges thereof, and in such a manner that
the bag itself may be passed through the said ring in either direction, so as to
bring what has previously been the inner surface of the bag to the outside,
the outside surface then constituting the inner surface, and in this manner the
bag is reversible at will and after having been fouled upon its inner surface, it
may be turned inside out and used in that position with equal advantage and
effect.
To facilitate the passing of the bag c through the collar or ring formed by
the parts a, b, for the purpose of turning it inside out, the bottom of the bag is
furnished with a small circular opening having on each side a tubular exten-

page_text: ston 9, 9, through which passes a plug g', half of which is contained within the
bag, the other half projecting through the bottom thereof upon the outside.
By raising the plug g¹ and passing the inner portion through the aforesaid
collar or ring, as indicated in Fig. 2 it may be readily grasped and the bag
easily drawn through the ring for reversing it, provided that, in the case of a
rubber bag, its inner surface be sufficiently moistened.
The top of the aforesaid collar or ring formed by the parts a, b, is suitably
shaped so as to receive a connection of any required kind leading to a face-mask,
or to apparatus, or to connections as desired.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
-
1. The improvements in collapsible bags used in connection with the administra-
tion of anaesthetics and for similar purposes, consisting in the employment of a
collar or ring formed of two parts such as a, b, to the inner periphery of which
the upper edge or extremity of the bag c is secured; in combination with tubular
extensions such as g, g, formed one upon each side of an opening or perforation
in the bottom of the bag c and containing a plug such as g¹; substantially as
herein described and shown with reference to the accompanying drawings and
for the purposes specified.
2. In connection with collapsible bags for the administration of anaesthetics
and for similar purposes, the arrangement at the bottom thereof of an inwardly
and outwardly projecting plug such as g¹ preferably contained within tubular
extensions such as g, g, formed one upon each side of a hole or perforation in the
bottom of the bag c, and for facilitating the passing of the said bag through
a collar or ring to which the said bag is secured; substantially as herein described
and shown and for the purposes specified.
3. The improvements in collapsible bags used in connection with the administra-
tion of anaesthetics and for similar purposes, consisting in the combination and
arrangement of the several parts for facilitating the turning of the bag inside
out; substantially as herein described and shown with reference to the accom-
panying drawings.
Dated this 18th day of A
1000
F. G. CASSELL
(Of Cassell & Co.),
22, Glasshouse Street, Regent Street, London, W.,
Agents for the Applicant.