U.S. patent number 3,574,239 [Application Number 04/786,988] was granted by the patent office on 1971-04-13 for apparatus for washing patients hygienically.
This patent grant is currently assigned to Svenska Utvecklingsaktiebolaget. Invention is credited to Soren Sollerud.
United States Patent |
3,574,239 |
Sollerud |
April 13, 1971 |
APPARATUS FOR WASHING PATIENTS HYGIENICALLY
Abstract
The invention concerns apparatus for bathing a bedridden patient
whereby washing medium continuously is supplied centrally through a
pressure nozzle and after its use is sucked off peripherally
through a suction nozzle arranged about the pressure nozzle.
Inventors: |
Sollerud; Soren (Norrkoping,
SW) |
Assignee: |
Svenska Utvecklingsaktiebolaget
(Stockholm, SW)
|
Family
ID: |
27354242 |
Appl.
No.: |
04/786,988 |
Filed: |
December 26, 1968 |
Foreign Application Priority Data
Current U.S.
Class: |
4/616; 4/535;
4/661; 15/302; 15/321; 134/21; 604/289; 601/160; 601/6 |
Current CPC
Class: |
A47K
5/14 (20130101); A61H 9/0028 (20130101); A47K
7/046 (20130101); E03C 1/046 (20130101) |
Current International
Class: |
A47K
7/04 (20060101); A47K 5/14 (20060101); A47K
7/00 (20060101); A61H 9/00 (20060101); A47K
5/00 (20060101); E03C 1/04 (20060101); E03C
1/046 (20060101); A47k 007/00 (); A47k
017/00 () |
Field of
Search: |
;134/1,6,7,10,21
;4/1,158,159,184 ;128/66,276,240,248 ;15/302,320,321,322 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
449,826 |
|
Jan 1913 |
|
FR |
|
463,735 |
|
Apr 1937 |
|
GB |
|
486,500 |
|
Jun 1938 |
|
GB |
|
Primary Examiner: Friedman; Reuben
Assistant Examiner: Zatarga; Joseph T.
Claims
I claim:
1. Apparatus for washing patients hygienically with minimum
disturbance of the patient comprising a closed container for a
washing liquid containing a small amount of a surface-active agent,
means for compressing air, means for supplying compressed air from
said compressor means to said closed container in an atomized state
to form a cleansing foam of the washing liquid, at least one
application nozzle having outlet ports and suction ports, two
flexible tubular elements, one of said tubular elements connecting
the outlet ports of said at least one nozzle to said closed
container for supplying foam under pressure to the outlet ports of
said nozzle for application of cleansing foam to the patient's
skin, means for creating of suction, a closed collecting container,
said second tubular element connecting the suction ports of said at
least one nozzle to the suction-creating means for withdrawing the
cleansing foam from the skin and passing it to the closed
collecting container where the foam disintegrates, means for
withdrawing at a predetermined pressure the gases liberated in said
closed collecting container and means for heat cleaning said
withdrawn gases and means for withdrawing the liquid from said
collecting container.
2. Apparatus as claimed in claim 1 wherein the outlet ports are
arranged about the periphery of the suction ports and further
comprising a spongelike element disposed over the outlet ports for
controlling the application of foam to the skin.
3. Apparatus as claimed in claim 1 wherein the suction side of said
means for creating a suction is connected to the suction ports
through said second tubular element and the pressure side of said
means is connected to said collecting container.
4. Apparatus as claimed in claim 1 and further comprising a second
nozzle having outlet ports and suctions ports, a three-way valve in
said first tubular element adjacent said closed container, means
for directing foam from said valve to said second nozzle, a second
three-way valve in said second tubular element adjacent said
suction means, means affording communication between said second
three-way valve and said second nozzle, whereby said three-way
valves may establish communication with at least one of said two
nozzles.
5. Apparatus as claimed in claim 1 wherein the suction ports are
arranged around the periphery of the outlet ports and further
comprising a spongelike element disposed over the outlet ports,
whereby the application of foam to the skin is controlled and the
outer surface of said sponge element serves as a washing means for
the surface being cleansed.
6. Apparatus as claimed in claim 5 and further comprising a ring of
spongelike material disposed about the periphery of the suction
ports to protect the skin area being cleansed and to assure
substantially complete removal of foam from the skin area.
7. Apparatus as claimed in claim 6 wherein the spongelike element
disposed over the outlet ports and the spongelike element about the
periphery of the suction ports are formed as a single element which
is removably attached to the associated nozzle.
Description
This invention relates to a cleaning method and arrangement and
particularly to a method and arrangement for cleaning surfaces.
It has always been a problem to wash surfaces, which are difficult
to access or sensitive. This problem, however, was particularly
great in hospitals and similar places with concern to patients who
are bedridden or have a restricted power of motion.
It is generally known that of the three usual body-cleaning
methods: washing, bathing and douching, the last-mentioned method
is to be recommended most from a hygienic point of view. In
nursing, however, where the hygiene requirements are particularly
high, this method has proved not only difficult but even impossible
to be applied to bedridden patients. The possibilities available
today for washing of patients confined to their beds are restricted
to the use of washing flannels or bath sponges, which are dampened
in water to which soap or another detergent has been added,
followed by drying with a towel. The disadvantages of this kind of
washing are obvious, both as regards the result and with respect to
hygiene, particularly when it concerns patients suffering from
spontaneous intestinal secretions. For the staff this method is
awkward, time consuming and unaesthetic, and in many cases it
constitutes an obstruction to the recruiting of labour for these
nursing professions.
In hospitals for infectious diseases and in other nursing sections
involving great risks of infection one tries to isolate the
infection by providing a bathroom and water closet for the
individual patient. It is desired to burn up all refuse from such
nursing places. This is possible as far as bladder and intestinal
secretions are concerned which can be collected in plastic bags
filled with wood dust or the like. Such a method is troublesome and
at times even impossible to be carried out when it refers to used
bath or washing water. Moreover, from a discharge technical point
of view the bathtub provides a protection which is most ineffective
against micro-organic return flow.
Sterilization of water in necessary quantities, or the supply and
storage of fresh water, for obtaining a fully satisfactory hygiene,
if these measures are taken at all, involve considerable
investments of material and personnel.
The aforementioned drawbacks and deficiencies with concern to
hygiene can be doubled many times over, and all of them also can be
eliminated if the water traps and sewer were not restricted to
their place, further if the water flow could be controlled so as
only to be brought into contact with the place to be washed, if the
water volume could be reduced to the small percentage of molecules,
which really are active in the cleaning process, and if the
cleaning process could be carried out without manual contact with
the soiled place.
The present invention has as its objects to eliminate the
shortcomings involved in the present washing methods.
THe invention relates to a method of washing bedridden patients in
an easy, quick and lenient manner, and it is characterized in that
a washing medium of originally small volume is made voluminous and
is continuously supplied locally to the skin of the patient where
it acts for a short time, and is removed for disinfection together
with impurities washed off.
The invention also includes an arrangement for carrying out the
method, which arrangement substantially is characterized by a
compressor, a washing medium preparing apparatus, a suction pump, a
collecting vessel for used washing medium and a combined pressure
and suction nozzle.
Washing or douching under running water, which continuously is
renewed, was taken as a pattern for the design of the present
invention, which is based on the principle of generating the
washing medium to such a form, that both the washing medium and its
localization when being applied can be controlled. This can be
achieved, for example, by adding surface-active substances to the
water in a closed vessel and thereafter by filtered compressed air
to effect a foam of suitable density and duration.
By directing the prepared foam directly from the generator to the
zone in question on the patient's body, via a flexible hose
provided with an exchangeable end nozzle of, for example, foamed
plastic, the greatest possible protection against infection by the
washing medium is obtained. In the immediate vicinity of or
concentrically with the washing nozzle an exchangeable suction
nozzle is mounted which preferably can be made of foamed plastic,
whereby it is possible with one and the same motion to supply the
washing medium, to wash and to suck up used washing medium. As a
complement a special foam-wetted suction hose of greater dimension
is provided for sucking up possible intestinal secretions,
vomitings etc.
The invention is described in greater detail in the following, with
reference to the accompanying drawing showing an embodiment of the
arrangement according to the invention.
FIG. 1 shows a schematic view of the arrangement according to the
present invention.
FIG. 2 shows in principle how the arrangement is applied.
In a cart 1 an electric compressor 2 is mounted and provided with a
bacteria filter 3 for the input air, which subsequent to its
compression via a pipe 4 is directed out through an atomizing
nozzle 5 into a liquid vessel 6 containing a solution of, for
example, 99 percent water and 1 percent surface-active substance.
The airflow gives rise to the formation of foam, which via a hose 7
is pressed out through a nozzle 8 provided with an exchangeable
bath sponge 9. The nozzle 8 includes a concentric passageway
extending about the bath sponge 9 the outer edge of which is
provided with an exchangeable ring 10 of air-permeable foamed
plastic. The concentric passageway communicates via a hose 11, a
three-way valve 12 and a safety valve 13 with an electric vacuum
pump 14, which on its pressure side is connected with a pressure
container 15 provided with an outlet valve 16 and a spring-loaded
valve 17, which opens at an overpressure of approximately one
atmosphere whereafter the discharged air is urged to pass through a
cleaner 18 consisting of an electric filament spiral. The
aforementioned three-way valve 12 can, if required, be adjusted so
as to connect a pipe-connecting piece 19 with the vacuum pump 14,
instead of the suction passageway in the washing nozzle 8. Said
connecting piece 19 comprises an upright connection to the
three-way valve and a laterally directed connection to a hose 20,
and, besides, it is formed on its lower surface so as to provide a
holding portion for a detachable container 21 of transparent
material. The hose 20 is connected to a suction nozzle 22, which is
provided with an exchangeable contact safety device 23 of nonrigid
plastic, and which, besides, is provided with recesses for the
inlet of air in order not to impede the airflow, and also with
holes corresponding to passageways arranged in the suction nozzle
22, which passageways via a hose 24 are connected to the vessel 6
and hose 7 through the valve 25. The pipe connection 19--23 is
intended for sucking up intestinal secretions, vomitings etc.
A patient lying in bed is washed in the manner as follows. After
the washing medium (the surface-activated water) has been filled in
and washing agent as well as possibly other agents desired for the
patient have been added, the apparatus is moved to the patient
where it is connected to an electric wall socket and prepared with
new or cleaned nozzles and sponges. Thereafter the patient is
uncovered. If the patient is found to be heavily soiled by
evacuations from the bowel or of other type, first this coarse
substance is removed by the evacuation suction nozzle 22, after the
three-way valves 12 and 25 had been adjusted to sucking action and
foam supply, respectively, in said nozzled, whereby also highly
adhesive impurities can be sucked up and transported via the hose
20 to the container 21. Thereafter the three-way valves 12 and 25
are adjusted to sucking action and foam supply, respectively, in
the nozzle 8, and the washing procedure is commenced. The nurse
washes the patient from the head downwards, and by alternatingly
starting and stopping both the compressor and the vacuum pump the
nurse can control the supply of foam as well as the time for
washing by using the sponge.
From 3 litres of surface-activated water approximately 60 litres
foam are obtained which, after it was sucked up and compressed in a
pressure container 15, is given a volume of approximately 15
litres. A quantity of approximately 3 litres foam is sufficient for
washing a patient soiled to an average extent.
The safety valve 13 is set for a vacuum limit, which is of no
danger to the patient, and it starts operation when the ring 10 or
the contact safety device 23 for some reason does not allow air to
pass through.
Other embodiments of the invention can be imagined without
abandoning the idea of the invention, such as stationary
installations with connections for washing medium and vacuum
located near the patient's bed, and systems with entirely separated
washing and suction nozzles.
To the washing medium may also be added antiseptic or other agents
recommended by a physician. The design of the invention also allows
for medical treatment possibilities where the physician
individually can prescribe a therapeutic agent to be added to the
washing medium. The liquid vessel 6 of the apparatus is provided
with inlet ducts for medical additives, and the collecting
containers 15 and 21 are provided with inlet ducts for disinfecting
agents possibly added.
It is easy to realize the considerable advantages offered by the
invention. The costs for washing a patient are substantially
reduced both due to the low costs of the generated washing medium
and by the capacity rendered possible by the invention. The washing
procedure involves for the patient and the staff a social-ethical
improvements, which has a favorable effect on the hard-working
nursing staff. As a result of the invention can be mentioned the
possibility of reducing in nursing the expensive nosocomial
infections. The entire washing procedure and the operation of the
apparatus requires only one person, and the patient need not be
lifted but has only to be turned on his side, in which position the
patient, if necessary, can be supported during the washing
procedure by a plastic cushion. As the apparatus operates
substantially noiselessly, the patients are not subjected to any
disturbing noises. Owing to the large capacity of the arrangement
all patients, whether they are confined to their beds or not, can
be washed within the ward and, thus, the usual time-consuming
transport to the bathing department is no longer necessary.
As a complement to the apparatus, a liquid-lubricated evacuation
sucking device with a throwaway container for the collection of
evacuations can be mounted, and it also is possible to add to the
washing medium skin-stimulating agents, antiseptic or other agents
recommended by a physician, which in combination with the careful
washing according to this method render it possible also to wash
patients who under other circumstances must be washed with cotton
and spirits.
The effectiveness with respect to volume can be understood by a
comparison between the three litres of washing medium and the
resulting up to 800 litres of foam, depending on the density of the
foam, which is sufficient for a total washing of 100 patients
soiled to an average extent.
The apparatus can also be provided with connections for washing
nozzle and evacuation sucking device, so that the entire apparatus
can be flushed with a circulating disinfecting liquid.
Conclusively it may be mentioned, that the continuously increasing
use of antibiotics in nursing enforces the production of
increasingly vigorous virus. Against these virus one tries to
defend oneself, above all by using throwaway material to the
greatest possible extent. It can be safely assumed, therefore, that
within a few years it will be desirable to destroy after every
washing both the washing nozzle and the hoses as well as the
internal equipment in the vacuum pump. The economic possibilities
therefor are not insurmountable in connection with the arrangement
according to the invention.
The invention though having been shown and described in connection
with the washing of bedridden patients is, of course, not
restricted thereto. The invention is extremely well adapted a.o.
also for the washing of surfaces with difficult access, such as
ceilings and wall sections located at a greater height, in which
case the washing nozzle can be mounted on a long rod or a pipe. The
advantage offered by the invention is obvious. The entire cleaning
process is carried in one moment and the washed surface section is
left clean and dry or substantially dry. No washing sponges or
brushes or running water or drying flannels are required. The work
itself is clean, easily and rapidly performed and renders optimum
results.
* * * * *