U.S. patent number 3,699,984 [Application Number 05/105,830] was granted by the patent office on 1972-10-24 for cleaning and sterilizing device.
Invention is credited to Charles T. Davis.
United States Patent |
3,699,984 |
Davis |
October 24, 1972 |
CLEANING AND STERILIZING DEVICE
Abstract
A housing into which the hands and forearms may be inserted and
subject to sequential cleansing steps preparatory to performing
aseptic surgery. The housing includes openings through which the
forearms are sealing received and spray cleaning means for
sequentially spraying soap, bacteroicide and alcohol solutions
completely about the external surfaces of the hands and adjacent
forearms portions disposed within the housing. In addition, means
is provided whereby heated and filtered air may be subsequently
blown over the cleansed forearms and hands prior to their being
removed from within the housing.
Inventors: |
Davis; Charles T. (Mesa,
AZ) |
Family
ID: |
22308014 |
Appl.
No.: |
05/105,830 |
Filed: |
January 12, 1971 |
Current U.S.
Class: |
134/95.2;
134/199 |
Current CPC
Class: |
A61L
2/18 (20130101) |
Current International
Class: |
A61L
2/18 (20060101); B08b 013/00 () |
Field of
Search: |
;15/21R,21B,21C,21D,97
;134/44,46,47,58R,95,199 ;4/1 ;128/366,66 ;34/202 ;182/148,132 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Roberts; Edward L.
Claims
What is claimed as new is as follows:
1. A hand and forearm spray cleaning machine including a housing
having one wall in which at least one hand and forearm receiving
opening is formed having a horizontal center axis, and spray head
means supported within said housing inwardly of said one wall
spaced apart along and about the center axis of said opening, said
spray head means including means for discharging jets of fluids
delivered thereto generally radially inwardly toward the center
axes, means for supplying fluid under pressure to said spray head
means, said machine including a support from which said housing is
supported at an elevation with said one wall comprising a forwardly
facing front wall, a platform disposed forwardly of an upstanding
plane containing said front wall and at an elevation below said
opening, said platform and housing being supported for relative
vertical adjustment.
2. The combination of claim 1 wherein said housing is stationarily
supported from said support.
3. The combination of claim 1 wherein said spray head means
includes a plurality of axially spaced and aligned frame-like spray
heads disposed generally coaxial with said center axis.
4. The combination of claim 3 wherein said center axis is generally
horizontally disposed.
5. The combination of claim 1 wherein said one wall has a pair of
spaced openings formed therethrough, each of said openings having a
set of said spray head means operatively associated therewith.
6. The combination of claim 1 including a plurality of fluid
containers in said housing, the last mentioned means including
means for supplying fluid from each of said containers to said
spray head means.
7. The combination of claim 6 wherein said last mentioned means
also includes foot engageable control means supported from said
platform operative, when actuated, to sequentially pump fluid from
said container to said spray head means.
8. A hand and forearm spray cleaning machine including a housing
having one wall in which at least one hand and forearm receiving
opening is formed having a horizontal center axis, and spray head
means supported within said housing inwardly of said one wall
spaced apart along and about the center axis of said opening, said
spray head means including means for discharging jets of fluids
delivered thereto generally radially inwardly toward the center
axes, means for supplying fluid under pressure to said spray head
means, and means operative to pump filtered heated air into said
housing.
9. A hand and forearm spray cleaning machine including a housing
having one wall in which at least one hand and forearm receiving
opening is formed having a horizontal center axis, and spray head
means supported within said housing inwardly of said one wall
spaced apart along and about the center axis of said opening, said
spray head means including means for discharging jets of fluids
delivered thereto generally radially inwardly toward the center
axes, means for supplying fluid under pressure to said spray head
means, said housing including a hinged closure cover portion which
may be swung to an open position affording ready access to the
interior of said housing, said closure cover portion and said
housing including closely opposing sets of corresponding marginal
edge portions when said closure cover is in the closed position, at
least one set of opposing edge portions defining diametrically
opposite sides of said opening and being provided with resilient
seal means for forming a relatively good air tight seal about a
forearm projecting through said opening.
10. The combination of claim 9 wherein said machine includes power
means operative to selectively swing said closure cover portion
between open and closed positions, whereby a person using the
machine may remove his forearm and hand from the machine without
contamination thereof by contact of his forearm or hand with any
external portion of the machine.
Description
The cleaning and sterilizing device of the instant invention
includes a support from which a housing is supported at a
predetermined elevation and the support further includes a platform
disposed in front of and below the housing which is adapted to be
stood upon by the person using the sterilizing device. The housing
includes a pair of arm receiving openings which open forwardly in a
horizontal direction and spray cleaning heads are disposed within
the housing for spray cleaning the hands and adjacent forearm
portions of a person utilizing the device. However, inasmuch as the
hands and forearms are received within the housing with the
forearms substantially horizontally disposed and in predetermined
laterally spaced relation according to the spacing between the
forearm receiving openings within the front wall of the housing,
the platform and housing are supported from the main support for
relative vertical shifting whereby each user of the cleaning and
sterilizing device may adjust the height of the housing relative to
the platform according to his or her height.
The housing includes axially spaced and aligned circular spray
heads through which the hands and adjacent forearm portions of the
user are received and the spray heads are operable to sequentially
spray fine streams of water mixed with soap and antiseptic
solutions onto the hands and forearms of the user and to thereafter
successively rinse the hands and adjacent forearm portions with
clear water (either tap or pre-sterilized), an antiseptic solution
and finally alcohol. Further, the housing includes drying structure
whereby warm dry and filtered air is diverted into the chamber for
driving the external skin surfaces of the hands and adjacent
forearm portions of the user as well as the internal walls of the
housing and the entire cleaning process is automatically controlled
by a timer-type actuating mechanism operable to sequentially effect
the various sprays and thereafter the discharge of drying air into
the housing.
The main object of this invention is to provide an apparatus which
may be readily used by doctors and nurses for cleaning their hands
and adjacent forearm portions preparatory to preforming and
assisting in aseptic surgery.
Another object of this invention is to provide a cleaning and
sterilizing device in accordance with the preceding object which
will produce less micro-trauma to the skin than conventional
cleaning processes.
Still another object of this invention is to provide a cleaning
apparatus which will be operable to automatically to dry the hands
and adjacent forearm portions after their having been sprayed with
cleaning and rinsing solutions thereby eliminating the necessity of
drying the hands and forearms with towels prior to donning
gloves.
A final object of this invention to be specifically enumerated
herein is to provide a hand and forearm cleaning apparatus in
accordance with the preceding objects which will conform to
conventional forms of manufacture, be of simple construction and
easy to use so as to provide a device that will be economically
feasible, long lasting and relatively trouble free in
operation.
These together with other objects and advantages which will become
subsequently apparent reside in the details of construction and
operation as more fully hereinafter described and claimed,
reference being had to the accompanying drawings forming a part
hereof, wherein like numerals refer to like parts throughout, and
in which:
FIG. 1 is a perspective view of the hand and forearm cleaning and
sterilizing device of the instant invention;
FIG. 2 is an enlarged fragmentary vertical sectional view taken
substantially upon the plane passing through the center of the
assemblage illustrated in FIG. 1;
FIG. 3 is a vertical sectional view taken substantially upon a
plane indicated by the section line 3--3 of FIG. 2; and
FIG. 4 is a vertical sectional view taken substantially upon the
plane indicated by the section line 4--4 of FIG. 2.
Referring now more specifically to the drawings, the numeral 10
generally designates the hand and forearm cleaning and sterilizing
device of the instant invention which includes a support structure
referred to in general by the reference numeral 12 including a
horizontal base plate 14 and an upright hollow standard 16
supported at its lower end from the base plate 14.
The front marginal edge portion of the base plate 14 has a platform
assembly 18 supported therefrom and the assembly 18 includes an
upwardly opening housing bottom 20 including a bottom wall 22 which
rests upon and is secured to the base plate 14 and a downwardly
opening housing top 24 including a top wall 26. An upstanding
extendable motor in the form of a fluid cylinder 28 is secured at
its upper and lower ends to the top wall 26 and bottom wall 22 and
the top wall 26 includes push-type actuator switches 30, 32, 34 and
36 whose actuator portions project upwardly above the top wall 26.
The switches 30 and 32 are electrically connected to an electric
motor driven hydraulic pump assembly (not shown) for causing
extension and retraction, respectively, of the fluid cylinder 28
and the switches 34 and 36 serve functions to be hereinafter more
fully set forth.
The lower end of the standard 16 encloses vented fluid tanks 38,
40, 42 and 44 for containing soap, a bacteriocide, alcohol and any
other suitable liquid, respectively. The tanks or containers 38,
40, 42 and 44 include discharge lines 38', 40', 42' and 44',
respectively, having solenoid valves 38", 40", 42", and 44",
respectively, disposed therein and the lines 38', 40', 42' and 44'
open into a header pipe 46 into which the inlet end of one inlet
neck 48 of a motor driven fluid pump 50 opens. The fluid pump also
includes inlet necks 52 and 54 for communication with sources of
hot and cold water and an outlet line 56 extends from the outlet
port of the pump 50 through the front wall 58 of the standard
16.
A housing referred to in general by the reference numeral 60 is
supported from the front wall 58 forwardly of the latter and the
housing 60 includes a hinged cover 62 hingedly supported from the
remainder of the housing as at 64. The cover 62 includes a front
wall portion 66 which coacts with the front wall portion 68 of the
housing 60 to close the forward end of the housing and the
confronting edge portions of the wall portions 66 and 68 are
provided with coacting recesses opening toward each other to define
a pair of forearm receiving openings 70 having seal strips 72 and
74 extending thereabout. The seal strips 72 and 74 also serve to
form a fluid tight seal between abutting wall portions of the
housing 60 and the hinge cover 62.
An electric motor driven blower assembly referred to in general by
the reference numeral 76 is mounted within the standard 16 and
includes an outlet pipe 78 opening into the rear of the housing 60
through a flap valve 80. The blower assembly 76 includes internal
heating means (not shown) and the inlet for the blower assembly 76
opens through the rear wall 80 of the standard 16 and is provided
with a suitable filter 82.
The pump outlet line or pipe 56 projects through the front wall 58
and the rear wall 84 of the housing 60 and thereafter opens into
two pairs of annular spray heads 86 including inner peripheral
outlet openings 88. Each pair of spray heads 86 is axially aligned
with a corresponding opening 70 and additional annular spray heads
86 may be provided if desired.
A pair of fluid motors 90 are operably connected between the
housing 60 and the closure cover 62 therefor and may be actuated by
any suitable means (not shown) for opening and closing the cover
62. Further, the bottom wall 92 of the housing 60 includes a drain
fitting 94 to which the inlet end of a drain pipe 96 is secured and
the drain pipe 96 has a motorized pump 98 operatively associated
with its discharge end, the pump 98 discharging into any suitable
drain hose or pipe 100.
A timing mechanism 102 is supported by the upper portion of the
front wall 58 and includes a timer control knob 104 which is
engageable by a person standing on the platform assembly 18 in
front of the housing 60.
The switches 34 and 36 comprise an on switch for electrically
actuating the timing mechanism 102 and an emergency off switch for
terminating operation of the cleaning and sterilizing at any point
during its cleaning cycles.
In operation, a person wishing to clean his hands and adjacent
forearms initially places himself upon the top wall 26 of the
platform assembly 18 and actuates the switches 30 and 32 in order
to adjust the elevation of the top wall 26 relative to the housing
60 by extending or retracting the fluid cylinder 38. Thereafter,
that person may activate the on switch 34 after properly setting
the timer control knob 104 of the timer 102 and place his hands and
adjacent forearms within the open housing 60. Thereafter, if the
fluid motors 90 are electrically controlled by the timer 102, the
closure cover 62 will swing to the closed solid line position
thereof illustrated in FIG. 2 of the drawings and the motorized
pump 50 will be actuated together with the solenoid valve 38" in
order to pump warm water and soap solution into the spray heads 86
for discharge therefrom on the external surfaces of the hands and
adjacent forearm portions of the person using the device 10.
Subsequently, the solenoid actuated valve 38" will be closed and
the solenoid actuated valve 40" will be opened under the control of
the timer 102 and warm water and antiseptic solutions from the tank
or container 40 will be pumped to the spray heads 86. Thereafter,
the solenoid valve 40" will be closed and the solenoid valve 42"
will be opened whereupon an alcohol rinse may be discharged from
the spray heads 86. If other rinsing solutions are desired, they
may be placed within the container or tank 44 and subsequently
discharged through the spray heads 86.
In any event, after the spraying operations have been completed,
the timer 102 terminates operation of the motorized pump 50 and
initiates operation of the electric motor driven blower assembly 76
and attendant heating element whereby warm, filtered and dry air
will be blown into the interior of the housing 60 for drying the
skin on the hands and adjacent forearm portions of the user as well
as the internal surfaces of the housing 60. After the blower
assembly 76 is operated for a predetermined time, the timer 102
will terminate operation of the blower assembly 76 and the
extensible motors 90 will be actuated to swing the cover 62 toward
the open phantom line position thereof illustrated in FIG. 2 of the
drawings. At this point, the device 10 will automatically terminate
operation and be disposed in readiness for use by the next
person.
The foregoing is considered as illustrative only of the principles
of the invention. Further, since numerous modifications and changes
will readily occur to those skilled in the art, it is not desired
to limit the invention to the exact construction and operation
shown and described, and accordingly all suitable modifications and
equivalents may be resorted to, falling within the scope of the
invention.
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