U.S. patent number 3,628,532 [Application Number 04/805,983] was granted by the patent office on 1971-12-21 for aspiration and respiration apparatus.
Invention is credited to Joseph M. Magrath.
United States Patent |
3,628,532 |
Magrath |
December 21, 1971 |
ASPIRATION AND RESPIRATION APPARATUS
Abstract
An aspiration and respiration apparatus including a unit
comprising first and second conduit means, means for connecting
each of said conduit means to a single source of pressurized gas,
and means for controlling the flow of pressurized gas through each
of said conduit means. The first conduit means includes a pair of
openings, an inlet disposed intermediate said openings, and means
for forming during flow of gas therethrough a zone of reduced
pressure, said latter means being disposed intermediate said inlet
and a first one of said openings. Each of the first and second
conduit means is constructed for connection to a corresponding one
of a pair of tubes each of which is adapted to have one end thereof
disposed in a trachea of an air-breathing vertebrate whereby
pressurized gas and a suitable medication may be introduced into
the trachea through said second conduit means and one of the tubes,
and whereby matter may be removed from the trachea by the other one
of the tubes as a result of the flow of pressurized gas through
said inlet into said first conduit means, through said means for
forming a zone of reduced pressure and out of said first one of
said openings. The apparatus as described may also include means
for closing the first one of said openings and said first conduit
means for causing the inflation of the respiration system of a
vertebrate for overcoming hypoxia. Additionally, the first one of
said openings is constructed to be closeable by the hand of an
operator for causing the inflation of the respiration system. The
apparatus of this invention may also include a face mask means for
enclosing the nasal and oral openings of an air-breathing
vertebrate. The apparatus of this invention may also include a
means connected to the second conduit means for injecting liquid
into at least a portion of said second conduit means and thus
function as an irrigator. The apparatus of this invention may also
be used in a combination with a catheter to assist in removal of
various fluids from the organs of animals.
Inventors: |
Magrath; Joseph M. (McCook,
NB) |
Family
ID: |
25193023 |
Appl.
No.: |
04/805,983 |
Filed: |
February 24, 1969 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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663035 |
Aug 21, 1967 |
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Foreign Application Priority Data
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Jul 26, 1968 [GB] |
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35,766/68 |
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Current U.S.
Class: |
128/204.17;
128/204.25; 128/205.24; 604/149; 128/202.16; 128/207.16 |
Current CPC
Class: |
A61M
1/802 (20210501); A61M 16/00 (20130101); A61D
7/04 (20130101); A61M 16/127 (20140204); A61M
1/804 (20210501); A61M 2250/00 (20130101) |
Current International
Class: |
A61D
7/00 (20060101); A61D 7/04 (20060101); A61M
16/00 (20060101); A61M 1/00 (20060101); A61M
16/10 (20060101); A61M 16/12 (20060101); A62b
007/00 () |
Field of
Search: |
;128/145,145.5,145.8,351,19.4 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Pinkham; Richard C.
Assistant Examiner: Brown; Theatrice
Parent Case Text
This is a continuation-in-part of application Ser. No. 663,035,
filed Aug. 21, 1967 (and since abandoned).
Claims
I claim:
1. Apparatus for use in the respiration of an air-breathing
vertebrate and operable by source of pressurized gas containing
oxygen, comprising:
a. a tube having a suction end adapted to communicate with the
lungs of the vertebrate and an exhaust end adapted to communicate
with the atmosphere,
b. a jet-type pump disposed between said ends adapted to discharge
the gas in a direction toward said exhaust end, to thereby produce
suction at said suction end,
c. a first manually operated valve adapted to be adjusted to
provide a continuous flow of the gas into the suction end of the
tube at a rate compatible with the inhalation requirements of the
vertebrate,
d. a second manually operated valve for delivering the gas on
desired occasion, to said jet pump and adapted to be manually,
rapidly operated between open and closed positions,
e. said exhaust end forming a third valve adapted to be manually
opened or closed on desired occasion,
f. the construction being such that:
1. when said second and third valves are manually closed, gas if
delivered to the lungs of the vertebrate through said first valve,
effecting forced inhalation, and
2. when said second and third valves are manually opened, gas is
removed from the lungs of the vertebrate, effecting forced
exhalation.
2. Apparatus in accordance with claim 1 wherein said exhaust end is
so shaped to be closed by the palm of the hand of an operator.
3. Apparatus in accordance with claim 1 wherein said tube is of a
size and shape adapted to be grasped within the palm of the hand of
an operator.
4. Apparatus in accordance with claim 3 wherein said exhaust end is
so shaped to be closed by the other palm of the hand of an
operator.
5. Apparatus in accordance with claim 1 wherein said suction end is
connected to a face mask for enclosing the nasal and oral openings
of the vertebrate.
6. Apparatus in accordance with claim 5 including a removable
conduit disposed partially within the face mask adapted to be
inserted into the trachea of the vertebrate, the construction being
such that either the face mask or conduit may be optionally used
during respiration.
7. Apparatus in accordance with claim 1 including a heat exchanger
on said tube for adding heat thereto from the atmosphere to
compensate for reduction of temperature resulting from expansion of
gas in said pump.
8. Apparatus in accordance with claim 1 including a trachea tube
connected to said suction end, the trachea tube adapted to be
inserted into the trachea of the vertebrate, and a conduit
extending along the trachea tube through which the gas may be
delivered to the vertebrate.
9. Apparatus in accordance with claim 8 including an inflatable
device surrounding the trachea tube for sealing same within the
trachea, and conduit and valve means communicating the inflatable
device with the source of gas.
10. Apparatus in accordance with claim 1 wherein said pump includes
an annular nozzle in said tube for delivering the gas into same in
an annular convergent stream.
11. Apparatus in accordance with claim 1 wherein said second valve
includes an actuator for moving same to fully open position by
depressing it with a finger of the operator.
12. Apparatus for use in the respiration of an air-breathing
vertebrate and operable by a source of pressurized gas containing
oxygen, comprising:
a. a chamber having a suction opening adapted to communicate with
the lungs of the vertebrate and an exhaust opening adapted to
communicate with the atmosphere,
b. a jet-type pump in said chamber adapted to discharge the gas
toward the exhaust opening, thereby to produce suction at the
suction opening,
c. a first manually operated valve adapted to be adjusted to
provide a continuous flow of the gas to the lungs of the vertebrate
and at a rate compatible with the inhalation of requirements of
same,
d. a second manually operated valve for delivering the gas, on
desired occasion, to said jet pump and adapted to be manually
operated between open and closed position,
e. said exhaust opening forming a third valve adapted to be
manually opened or closed on desired occasion,
f. the construction being such that the following breathing
functions may be selected:
1. when the second valve is closed and the third valve is opened,
inhalation and exhalation are both permissive,
2. when the second and third valves are closed during inhalation,
inhalation is forced; and when the second valve is closed and the
third valve is open during exhalation, exhalation is permissive,
and,
3. when the second valve is closed and the third valve is opened
during inhalation, inhalation is permissive; and when the second
valve is open and the third valve is open during exhalation,
exhalation is forced.
13. A method of applying respiration to an air-breathing vertebrate
with a source of pressurized gas containing oxygen comprising:
a. communicating a suction opening in a chamber with the lungs of
the vertebrate and an exhaust opening therein with the
atmosphere,
b. delivering gas continuously at a controlled rate to form a
source of breathing gas for the lungs of the vertebrate,
c. manually controlling delivery of gas, on desired occasion, to
said chamber in a manner to produce a reduced pressure therein,
whereby exhaled gas from the lungs may flow from the suction
opening, through the chamber, and to the atmosphere through the
exhaust opening, and
d. manually controlling the opening and closing of the exhaust
opening, on desired occasion,
e. the manual controlling being effective to select the following
combinations of breathing functions:
1. render inhalation and exhalation permissive,
2. render inhalation forced and exhalation permissive,
3. render inhalation permissive and exhalation forced, and
4. render inhalation and exhalation forced.
Description
BACKGROUND OF THE INVENTION
Heretofore, only a few items of unsophisticated equipment have been
proposed or made available to veterinarians for supplying emergency
oxygen to an animal, for aspiration purposes including the removing
of mucous from the trachea of an animal, for removing fluid from
the organs of an animal, for introducing medicine into the trachea
of an animal, for assisting an animal to breathe, to produce a
cough response in an animal, and for combating hypoxia and
asphyxiation. Each item of equipment heretofore proposed or
otherwise available has suffered from a number of disadvantages.
For example, each item of equipment was either complex in
operation, cumbersome to handle, expensive, or limited in
application. Additionally, none of the aforementioned equipment
could operate from a single source of pressurized fluid to provide
simultaneously fluid or air to the animal and effecting aspiration
as well. Further, none of the aforementioned equipment could be
used to produce a cough response which facilitates an animal in
ridding itself of mucous or the like and overcoming breathing
difficulties. Additionally, none of the aforementioned equipment
could be used to introduce medicine into the trachea or windpipe of
an animal to obtain certain desired results.
SUMMARY OF INVENTION
It has been discovered that the foregoing disadvantages may be
quickly and easily overcome through the use of an apparatus
including a unit comprising first and second conduit means, means
for interconnecting each of said conduit means to a single source
of pressurized gas, and means for controlling the flow of
pressurized gas to each of said conduit means, said first conduit
means including a pair of openings, an inlet disposed intermediate
said openings, and means for forming during flow of gas
therethrough a zone of reduced pressure, said means being disposed
intermediate said inlet and a first one of said openings, each of
said first and second conduit means being constructed for
connection to a corresponding one of a pair of tubes each of which
is adapted to have one end disposed within a trachea of an
air-breathing vertebrate whereby pressurized gas may be introduced
into the trachea through said second conduit means and one of the
tubes, and whereby matter may be removed from the trachea through
the other one of the tubes as a result of flow of pressurized gas
through said inlet into said first conduit means, through said
means for forming a zone of reduced pressure and out of said first
one of said openings. The apparatus of this invention may be used
in combination with a face mask means for enclosing the nasal and
oral openings of an air-breathing vertebrate. Further, the
apparatus of this invention may be used in combination with a
catheter to remove fluids from the organs of animals. Additionally,
the apparatus of this invention may be used in combination with a
pair of tubes as aforesaid which has an inflatable means mounted
thereabout, said apparatus including a third conduit means for
supplying a pressurized fluid through said inflatable means.
Accordingly, one of the primary objects of this invention is to
provide a novel aspiration and respiration apparatus for use with
air-breathing vertebrates.
Another object of this invention is to provide a novel apparatus
including a face mask to cover the nose and mouth portions of an
animal's head to accomplish both nasal and oral respiration.
Another object of this invention is to provide an apparatus in
accordance with the previous object which includes a removable
conduit which may be introduced into a trachea of an air-breathing
vertebrate, whereby the conduit or face mask may be optionally
used.
Another object of this invention is to provide an apparatus which
can be used for aspiration and respiration purposes as well as
irrigation purposes.
Another object of this invention is to provide an apparatus which
can be used for aspiration and respiration purposes as well as in
combination with a catheter.
Another object of this invention is to provide a novel aspiration
and respiration apparatus which functions from a single source of
pressurized fluid.
Another object of this invention is to provide an aspiration and
respiration apparatus comprising first and second conduit means,
each of said conduit means being adapted to have an end introduced
into a trachea of an air-breathing vertebrate, means for forming a
partial vacuum in said first conduit means, and means for
introducing a pressurized fluid into said second conduit means for
emission into the trachea of the vertebrate for assisting in the
aspiration and respiration of the vertebrate.
Another object of this invention is to provide an aspiration and
respiration apparatus as aforedescribed which also includes oxygen
storage means for supplying oxygen to said second conduit means, a
manifold means, means for conveying oxygen from said oxygen storage
means to said manifold means, and pressure and flow regulator means
in said oxygen-conveying means, and said second conduit having an
outer end connected to said manifold means.
Another object of this invention is to provide an aspiration and
respiration apparatus as aforedescribed including means connected
to said second conduit means for injecting liquid into at least a
portion of said second conduit means.
Another object of this invention is to provide an aspiration and
respiration apparatus as aforedescribed including inflatable means
mounted about at least a portion of said first and second conduit
means, and a third conduit means for supplying a pressurized fluid
to said inflatable means.
Another object of this invention is to provide an aspiration and
respiration apparatus comprising a face mask means for enclosing
the nasal and oral openings of an air-breathing vertebrate, said
face mask means having an outer end normally open to atmospheric
air, first and second means for introducing oxygen into said face
mask means for assisting in the respiration of the air-breathing
vertebrate, and the oxygen being moisturized for respiration from
condensate formed on the inner surface of said mask means from air
expired by the vertebrate, and said first means including an
opening closable by hand of an operator for causing the inflation
of the respiration system of the vertebrate for overcoming
hypoxia.
Another object of this invention is to provide an aspiration and
respiration apparatus as aforesaid described including a heat
exchanger for preventing undesired cooling of same resulting from
oxygen expansion in a venturi-type suction pump.
BRIEF DESCRIPTION OF THE DRAWINGS
The foregoing objects and other advantages of the invention will
become apparent from the following description and claims and the
accompanying drawings wherein:
FIG. 1 is an elevational view, in partial cross section, of a unit
included within an aspiration and respiration apparatus constructed
according to the subject invention;
FIG. 2 is another embodiment of a unit, in plan view, useful in an
aspiration and respiration apparatus constructed in accordance with
invention shown in combination with a catheter;
FIG. 3 shows another embodiment of a unit useful in an aspiration
and respiration apparatus constructed in accordance with this
invention and showing also the use of an inflatable means;
FIG. 4 is a cross-sectional view of the inflatable means shown in
FIG. 3;
FIG. 5 shows an embodiment of a unit useful in an aspiration and
respiration apparatus constructed according to the subject
invention in combination with a face mask means;
FIG. 6 is a central longitudinal section of an embodiment of the
invention employing a heat exchanger to prevent undesired cooling;
and
FIG. 7 is a central longitudinal section of an embodiment of the
invention employing both a face mask and a removable trachea
tube.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
It is to be understood that this invention is not limited to the
details of construction and arrangement of parts shown in the
drawings and hereafter described in detail, but is capable of being
otherwise embodied and being practiced and carried out in various
ways. It is to be further understood that the terminology employed
herein is for the purpose of description and there is no intention
to limit herein the invention beyond the requirements of the prior
art.
It is to be understood that the apparatus of this invention can be
applied or adapted for application to all air-breathing animals or
vertebrates, and that this invention is not considered as
restricted to farm animals and pets generally handled by
veterinarians.
Referring now to FIG. 1, a unit 10 useful in an aspiration and
respiration apparatus constructed in accordance with the subject
invention is shown comprising first and second conduit means, 12
and 14, means 16 for interconnecting each of said conduit means 12
and 14 to a single source of pressurized gas, represented by the
oxygen storage tank 18, and means 20 and 22 for controlling the
flow of pressurized gas through each of said conduit means 12 and
14. The first conduit means 12 includes a pair of openings 24 and
26, an inlet 28 disposed intermediate said openings 24 and 26, and
means 30 for forming during flow of gas through said first conduit
means 12 a zone of reduced pressure, said latter means 30 being
disposed intermediate said inlet 28 and a first one 24 of said
openings. Each of the first and second conduit means 12 and 14 is
constructed for connection to a corresponding one of a pair of
tubes 32 and 34. Each of the tubes 32 and 34 is adapted to have one
end thereof disposed within a trachea 36 (see FIG. 3) of an
air-breathing vertebrate such as a cow whereby pressurized gas may
be introduced into the trachea 36 through said second conduit means
14 and tube 34, and whereby matter such as mucous may be removed
from the trachea 36 through tube 32 as a result of the flow of
pressurized gas through said inlet 28 into said first conduit means
12, through said means 30 for forming a zone of reduced pressure
and out of said first one 24 of said openings. The unit 10 shown in
FIG. 1 also includes a means 38 connected to one end of conduit
means 14 and one end of tube 34. Means 38 which may comprise a jar
or other suitable container is used for injecting liquid into the
trachea 36 of an air-breathing vertebrate. The unit 10 as shown in
FIG. 1 also includes a butterfly valve 40 installed adjacent the
opening 24. The butterfly valve 40 may be used to close the opening
24 and thereby prevent pressurized gas from flowing out of the
first conduit means 12 through opening 24.
The means 16 of unit 10, which may be manifold, is connected to a
single source of pressurized gas such as the oxygen storage tank
18, by pipe 42. A pressure and flow regulator means 44 is connected
within the pipe 42 between the oxygen and storage tank 18 and the
manifold means 16.
In FIG. 2 is shown a unit 43 useful in an aspiration and
respiration apparatus constructed according to this invention. Unit
43 differs from unit 10 in that a plug means 46, which is used for
the same purpose as a butterfly valve 40, has been used in lieu of
the butterfly valve 40 and the conduit means 14 is not connected to
any other part such as is the case with the unit 10 shown in FIG.
1. The plug means 46 is secured by a suitable means such as a chain
48 to an eyelet 50 formed on the first conduit means 12. The
purpose for the plug means 46 and the butterfly valve 40 will be
hereinafter explained in greater detail. The unit 43 shown in FIG.
2 is used in combination with a catheter 52. The catheter 52 is
threadedly mounted within the opening 26 of the unit 43. As
previously indicated, the end 54 of the second conduit means 14 is
not connected or attached to any other part. In addition, it will
be appreciated that the plug 46 shown in FIG. 2 will normally be
removed from the opening 24 during use of the unit 43 in
combination with the catheter 52. Further, it will also be
understood that the unit 43 and the catheter 52 may be beneficially
used without the necessity of requiring flow of pressurized gas
from the storage tank 18.
In FIG. 3 is shown another unit 56 which is in an aspiration and
respiration apparatus constructed according to the subject
invention. Unit 56 is quite similar in construction and operation
to the units 10 and 43, shown respectively in FIGS. 1 and 2.
However, unit 56 includes a third conduit means unit 58 in addition
to the first and second conduit means 12 and 60. It will be noted
that a common tube or pipe 62 interconnects the control means 20
and the Y-connection 63. Additionally, the third conduit means 58
includes a means 64 for controlling flow of pressurized gas through
said third conduit means 58. The unit 56 is used in combination
with a plurality of tubes 66, 68 and 70 and an inflatable means 72.
Tube 66 is similar to tube 32 shown in FIG. 1. Tube 68, which is
much smaller in diameter than tube 66, serves the same general
purposes as tube 34 shown in FIG. 1; however, tube 68 has a
substantial portion thereof disposed within tube 66 as is more
clearly shown in FIG. 4. Tube 70 interconnects the third conduit
means 48 and the interior of the inflatable means 72. Thus, when
pressurized gas is admitted into the interior of the inflatable
means or cuff 72, said means 72 expands and contacts the adjacent
surrounding surface of the trachea 36.
In FIG. 5 is shown another unit 73 useful in an aspiration and
respiration apparatus constructed in accordance with the subject
invention. It will be noted that unit 73 is constructed without
benefit of either a plug means or butterfly valve. The unit 73
shown in FIG. 5 is used in combination with a generally
bottle-shaped face mask 74 adapted to enclose the nasal and oral
openings 76 and 78, respectively, of the animal 80 shown in FIG. 5.
Pressurized gas or oxygen is supplied from the oxygen storage tank
(not shown) into the face mask 74 by a tube 82 which has one end
thereof connected to the second conduit means 14 of unit 73. The
other end of tube 82 is connected to a conventional hose connection
84 which is integrally attached to the frustoconically shaped
shoulder 86 of the face mask means 74.
Referring now to FIG. 5, operation of the aspiration and
respiration apparatus constructed in accordance with this subject
invention is now described. First, the unit 73 is connected with
the oxygen storage tank in the manner shown in FIGS. 1 and 2. The
face mask 74 is suitably connected to the opening 26 of the unit 10
such as by a threadable connection. The tube 82 is attached to the
second conduit means 14. The control means 22 is opened a
predetermined amount to permit the flow of pressurized oxygen to
flow through the second conduit means 14, the tube 18 and into the
interior of the face mask means 74. The face mask means 74 is
positioned to cover the oral and nasal openings 76 and 78 of the
animal 80. The control means 20 is opened to permit the flow of
pressurized oxygen through the first conduit means 12 and out of
the openings 24. Upon alternately opening and closing the opening
24, such as with the hand of the operator, large quantities of
pressurized oxygen are supplied to the animal 80. When the opening
24 is opened as by removal of the operator's hand or opening of a
butterfly valve (not shown) while valve 22 is closed, the animal 80
is permitted to exhale. By opening valve 22 simultaneously with the
opening of opening 24, the animal 80 is forced to exhale thereby
resulting in the removal of all traces of CO.sub.2 emitted by the
animal and insuring a high concentration of oxygen in the air
passages. If desired a valve may be mounted in opening 24 wherein
said valve is spring biased to close the opening 24 but openable
under the influence of pressurized gas or oxygen. By appropriately
timing the opening and closing of the opening 24, the animal can be
given artificial respiration and forced to breathe in a desired
manner.
Referring now to the apparatus shown in FIG. 1, the combined tubes
32 and 34, tube 34 being connected to tube 32 by suitable means, is
inserted into the trachea of an animal. The control means 20 is
opened to admit pressurized oxygen to flow through the second
conduit means 14, through the container 38 through the tube 34 and
into the trachea of the animal. In this manner, oxygen is
continuously supplied into the trachea of the animal. The butterfly
valve 40 is rotated to permit passage of pressurized gas out of the
opening 24. The control means 22 is actuated to permit flow of
pressurized gas through the inlet, through the means 30, said means
30 serving to cause the first conduit means 12 to function as a
venturi, outwardly of the opening 24. The flow of pressurized gas
from the first conduit means in this manner produces a partial
vacuum in the region of means 30 or a zone of reduced pressure, as
compared with the area disposed intermediate the inlet 28 and the
opening 26 of the first conduit 12. Since tube 32 is connected with
the first conduit 12, the flow of pressurized gas through first
conduit 12 as aforedescribed, produces an aspirating effect at the
end 88 of tube 32. As a result of this aspirating effect, mucous or
other matter is removed from the trachea adjacent the end 88 of
tube 32. At the same time, oxygen is being supplied into the
trachea by tube 34 thereby facilitating the breathing of the animal
and assisting in dehydrating the tissues which is sometimes quite
beneficial. In some instances it has been found that the mucous
cannot be removed as a result of the aspirating effect without
first being broken up. The breaking up of mucous is accomplished by
injecting a liquid demulsifier into the trachea. The injecting of
such a liquid is accomplished by filling the container 38 with a
predetermined quantity of such liquid and then opening control
means 20. Alternatively, the foregoing may be accomplished in the
absence of the container 38 by using a syringe (not shown) to
inject the liquid or medication directly into the tube 34. Since
the aspirating effect can be maintained during the injection of
liquid into the trachea, the chance of the animal becoming choked
upon the emission of this liquid into the trachea is substantially
eliminated since any excess liquid is immediately removed as a
result of the aspirating effect being maintained.
Referring to FIG. 3, the aspiration and respiration apparatus in
FIG. 3 functions in substantially the same manner as the aspiration
and respiration apparatus shown and described above in connection
with FIG. 1, except that the apparatus shown in FIG. 3 includes the
inflatable means or cuff 72 which can be expanded to close the
trachea 72 and thereby permit more accurate control of the pressure
within the trachea 36 and inwardly of the inflatable means 72. It
will be understood that the control means 64 may be eliminated if
the pressure being applied from the interior of the inflatable
means 72 is below a predetermined amount. This may be accomplished
in a number of ways such as through the pressure regulator 44 or by
increasing the pressure drop through the tube 70.
Referring to FIG. 6, this embodiment is similar to that of FIG. 1
in that a manifold 16 and a needle valve 20 are employed to control
flow of oxygen through conduit 34. It will be understood that
conduit 34 may be positioned to supply oxygen directly into the
tube itself much in the same manner as is shown in FIG. 7. One of
the principal differences resides in the use of an annular nozzle
28a which delivers a convergent stream of oxygen into conduit 12a,
providing a venturi-type suction pump for conduit 32a. Another
difference resides in the use of a heat exchanger formed of
annular-spaced fins 90 on conduit 12a which transfer atmospheric
heat to same to compensate for the cooling effect of the expansion
of oxygen through annular nozzle 28a.
Referring to FIG. 7, this embodiment is similar to the other
embodiments differing principally in that both a face mask 74a and
a trachea tube 32a are employed, the tube being removably secured
to the mask by a bayonet connection 92. As shown, with the trachea
tube attached, the latter is employed whereas when removed the face
mask is employed. As will be apparent, this provides a single
device which includes the features of the face mask version and the
trachea tube version, previously described. Mask 74a is preferably
constructed of flexible material, such as a transparent plastic,
the rim of which is provided with a rubberlike lip 94 to effect
sealing thereat. Oxygen supply tube 96 terminates within tube 12b
so that it may supply oxygen through tube 32a, when attached, or to
mask 74a when tube 32a is removed.
An aspiration and respiration apparatus constructed according to
the subject invention has been found to be useful in a large number
of applications. As a matter of fact, the apparatus has been found
to be particularly useful for newborn animals and particularly to
treat dyspnea and asypnea. There are a number of situations
occurring during the birth of a newborn animal which require
immediate application of emergency oxygen or the newborn animal
will die. For example, in situations of a breech birth, the first
born of an animal, or where the delivery of the animal takes too
long, many of these newborn animals will die; however, by
immediately aspirating the trachea of the newborn animal, followed
by supplying nearly 100 percent oxygen to the animal, nearly all
such animals now survive this birth hazard as well as aspiration
pneumonia in the days following birth. In another situation, this
so-called "blue" (cyanotic) newborn animal can also be saved by the
use of the apparatus of this invention. The "blue" or cyanotic
newborn animal includes those animals in which the mother has quit
breathing for the newborn or near newborn animal and the animal
itself cannot do the job, such as occurs when the umbilicus has
parted.
The apparatus of this invention is also useful in connection with
older animals. For example, the unit shown in FIG. 2 may be used in
combination with the catheter 52 as heretofore described.
Additionally, the apparatus of this invention may be used to treat
injured animals or animals in a state of shock. Also, the apparatus
of this invention can be used to treat infection of the uterus
following parturation.
From the foregoing, it will be readily appreciated that an
apparatus simple in construction and operation, inexpensive to
manufacture, and flexible in application has been described.
Through the use of an apparatus constructed in accordance with the
subject invention, it has been found possible to save the lives of
a large number of newborn animals such as calves, which have
heretofore been lost. Additionally, it has greatly facilitated the
treatment of older animals as aforedescribed. When it is considered
that millions of calves which have heretofore died during birth can
be saved, the significance of the herein invention will be all the
more readily understood and appreciated.
It is understood that this invention is not limited to the exact
embodiments of the apparatus as shown herein, which are merely by
way of illustration and not limitation, as various other forms and
modifications will be apparent to those skilled in the art, and it
is therefore intended that the appendent claims cover all such
changes and modifications.
* * * * *