JPH0135647B2 - - Google Patents

Description

Claim 1: a. A tank for containing a cleaning liquid; b. A circulation pump connected to said tank for circulating said liquid under periodically varying pressure from a maximum pressure to a minimum pressure. , c nozzle devices connected to the circulation pump and arranged at a distance from each other so as to spray the fluid under the periodically varying pressure onto the object to be cleaned. Device.

2. said mutually spaced nozzle devices are a plurality of parallel, spaced apart hollow tubes in a circular pattern when viewed from the ends, directing said cleaning liquid to the center of said circular pattern; a hollow tube, each tube having a plurality of spaced apart nozzles for atomizing the fluid, the tube having an inwardly curved end toward the central axis of the circular pattern; b. and a plurality of outlets extending outwardly and upwardly away from a central axis thereof and having a diameter smaller than the circular pattern of hollow tubes; c. directing the cleaning liquid into the tubes; 2. The apparatus of claim 1, comprising means for connecting said manifold outlet to a corresponding bent end of said spaced apart hollow tube for delivery.

3 further comprising a plurality of said tubes that are parallel and horizontally spaced apart, having a top wall, a bottom wall, and a side wall;
a housing in which the circular manifold is mounted on a back wall; b. a device for fixing the front end of the hollow tube to the front wall; c. a housing attached to the fixing device at the center of the circular pattern of the hollow tubes. 3. The apparatus of claim 2, further comprising a rubber sleeve adapted to be inserted into the housing to provide access to the interior of the housing for cleaning the user's arms and hands.

4. At least one atomizing nozzle is provided on the bent end of each said hollow tube, and at least one atomizing nozzle is provided in the center of said circular manifold, said circular manifold nozzle being located near the user's finger. 4. Apparatus according to claim 3, adapted to spray liquid towards and at right angles to the plane of the circular pattern to aid in cleaning the nails.

5 the sleeve; a a truncated cone of flexible material; b a housing provided at the base of the cone for securing the cone to the front wall of the housing; c a truncated end of the cone. a cylindrical extension formed integrally with the cone and extending outward from the end; d formed along the peripheral edge of the extension in a direction around the axis of the cone; , a groove that allows a user's arm of various thicknesses to be inserted into the interior of the housing through the cone, which groove prevents liquid leakage, protects the disinfected outside of the cone, and allows the use of 5. The device of claim 4, wherein the seal is formed against a person's sterilized arm by flipping the inside of the cone outward for contact with the sterilized arm of the person.

6 further comprising: a a second set of hollow tubes having parallel horizontal bases abutting said housing and connected to a second manifold to enable cleaning of both arms and hands simultaneously; a housing; b. an apparatus for installing said first and second housings on said movable tank, the upper part of said tank forming a bottom wall of said housing and having an orifice therein; and a device adapted to collect fluid and return it to the tank for recirculation.

7 further comprising: a a foot switch connected to the pump for driving the pump with the foot while both arms are inserted from the sleeve into the housing; b a foot switch connected to the pump when the foot switch is actuated; 7. The apparatus of claim 6, further comprising a timer connected to the pump for enabling the pump to operate for a predetermined period of time.

8. The device of claim 7, wherein wheels are attached to the holding tank to make the device portable.

9. The apparatus according to claim 8, further comprising a device for selecting one of a plurality of frequencies of various pressure fluctuations of the liquid discharged by the pump.

10. The apparatus of claim 9, wherein said housing is made of clean plastic.

11a a movable tank comprising a top cover containing a cleaning liquid and having an orifice; b a common wall extending from the top towards the bottom at a distance and installed on the top of said movable tank; c) a unit for washing hands and arms installed in each of said housings; d) connecting a washing fluid in said tank to said washing unit and controlling said washing fluid from a maximum value to a minimum value; a fluid pump for circulating cleaning fluid under a fluctuating pressure that varies periodically; e. a foot-operated switch connected to the fluid pump for activating the pump; f. activating the pump for a predetermined period of time; a timer connected to the pump and the foot switch; g. a flexible seal placed on the front wall of each housing into which the user's hands and arms can be inserted for cleaning purposes; Portable cleaning equipment including.

12 said cleaning unit: a has a plurality of parallel and horizontal edges spaced apart in a circular pattern and for spraying said liquid towards the center of said circular pattern; a hollow tube having a plurality of spaced apart nozzles, and further having an end curved inwardly toward the central axis of the circular pattern; b mounted on a back wall of the housing; a circular manifold having an inlet for receiving fluid and a plurality of outlets extending upwardly and outwardly from a central axis thereof and having a diameter smaller than the circular pattern of hollow tubes; c. 12. A cleaning device according to claim 11, comprising a device for connecting to a corresponding bent end of a hollow tube placed thereon.

13 a. a movable tank for holding a cleaning fluid; b. at least one cleaning unit installed in said tank for receiving the objects to be cleaned; c. a movable tank for cleaning objects placed therein without pulsation. A portable cleaning device comprising said tank and a pump connected to said unit for circulating cleaning fluid to said cleaning unit at a pressure that varies periodically from a maximum to a minimum value.

14. said cleaning unit: a. has a housing having a top wall, a back wall, a side wall and a bottom wall formed by said movable tank; b. has a circular pattern when viewed from a plurality of parallel and horizontal ends; a cleaning unit comprising hollow tubes spaced within said housing, each tube having an end curved inwardly toward a central axis of said circular pattern; c. directing fluid into said tank; a circular manifold having a diameter smaller than the circular pattern of hollow tubes, the manifold having a plurality of outlets extending upwardly and outwardly from a central axis of the manifold; d a device for connecting said manifold outlet to a corresponding bent end of said spaced apart hollow tube; e a spacer on each said hollow tube for spraying said liquid toward the center of said circular pattern; 14. The cleaning device according to claim 13, further comprising a plurality of nozzles placed in the cleaning device.

15. Claim 1 or 11 further includes; a. A valve device connected between the circulation pump and the nozzle device to periodically vary the pressure of the liquid between a maximum pressure and a minimum pressure. Portable cleaning device as described in Section.

16. The valve arrangement includes: a) a housing having an input port and an output port; and b) a housing within the housing for alternately opening and partially closing the output orifice to produce the periodic fluctuations in the fluid pressure. 16. A portable cleaning device as claimed in claim 15, including at least one impeller located at.

17. The apparatus of claim 16, wherein the output port has a smaller cross-sectional area than the input port.

18 In addition, a) two output ports, b two cleaning units connected to each output port, and c pressure periodically fluctuating by alternately opening and partially closing each output port. 18. The apparatus of claim 17, including an impeller at each output port for connecting fluid to each of said cleaning units.

19 a. said impellers are mounted on a common shaft to be driven by a common shaft; b. relative rotation of said impellers by 90° causes output ports to be alternately opened and partially closed; 19. Apparatus as claimed in claim 18, wherein the fluids are thus conveyed to the washing unit out of phase with each other.

20. Claim 19, wherein each impeller is generally formed in the shape of a figure eight, such that each rotation of the impeller opens or partially closes the corresponding output port. The device described in.

21 a supplying a cleaning fluid, b circulating said fluid under pressure, and c varying said fluid pressure from a maximum pressure to a minimum pressure (0
d) spraying said fluid under said periodically varying pressure towards an object to be cleaned.

BACKGROUND OF THE INVENTION The present invention relates to cleaning devices and, more particularly, to devices for washing and cleaning a surgeon's hands and arms during surgery.

In emergency situations, patient survival often depends on how long it takes for the surgical team to scrub their hands before entering the operating room. ,well known. A typical pre-surgery cleanse lasts between 5 minutes and 5 minutes depending on the type of surgery planned and the length of the surgery.
It takes 15 minutes.

In the past, preoperative cleaning of surgeons and operating personnel followed a similar pattern.
Cleaning brushes and various chemicals are used to remove bacteria from hands that could infect patients. The cleaning must be thorough and careful, which is time consuming and in many cases irritating to the skin. Additionally, not all surgical personnel clean in the same manner, so cleaning results may vary from person to person.
In addition, even for the same person, each cleaning is different.

Careful cleaning removes bacteria on the skin's surface, but has been found to be less effective against bacteria present within follicles and skin impressions. It is clear that this unremoved bacteria acts as a source of infection for the patient during surgery.

Some of the problems associated with cleaning before surgery include the length of time it takes, some bacteria that is not removed, the difficulty of removing bacteria under and around the fingernails, and the lack of cleansing. These include tissue damage caused by repeated use over long periods of time, and individual sensitivity to some disinfectants and cleaning agents.

To overcome various shortcomings of prior art pre-surgical irrigation methods, U.S. Pat.・
A jet cleaning device has been proposed.

According to this, the hands and arms of each person to be cleaned are inserted into a cleaning chamber that includes a curved manifold arranged around a longitudinal axis, and the arms and hands are placed in the cleaning fluid discharged from the manifold device. Expose to pulsating jet flow. Therefore, in order to uniformly expose the arm to the pulsating jet stream of cleaning fluid exiting the manifold opening, the arm should be rotated slowly.

When the latter manifold is operated at a pulse frequency of approximately 1500 pulses per minute, the spray jet produces a compressive-non-compressive action that is particularly effective for removing dirt and bacteria within the follicles and skin folds. It has been found that it occurs on the skin of Test results for this device were 3.5Kg/cm ² (50psi) and 5.6Kg/cm ²
The cleanliness obtained after both wash pressures (80 psi) were maintained for 90 seconds was found to be better than a conventional scrubbing action of 5 minutes.

These devices have been found to be extremely effective in cleaning the skin in a very short time;
It proved unsatisfactory for use for other reasons and was discontinued.

One of the drawbacks of prior art cleaning devices was that they produced a significant high pitched noise. Because the unit vibrates significantly and is noisy during operation, it has had to be located in a particularly well-isolated area to ensure that the noise does not disturb the patient or other people.

This is the room where the cleaning equipment is installed.
This means that it cannot be used in close proximity to an operating room unless noise is prevented to some extent.

One reason for this noise is the use of tubing with right angle bends where the high pressure fluid must make sharp changes in direction. Yet another reason is pulsation of the cleaning fluid. That is,
This pulsation is 1500 times per minute from a state of zero pressure.
The pressure changes up to the maximum pressure of about 100 times. Since the fluid was pulsating, it impinged on the tubes at these perpendicular joints, creating a significant amount of pounding and vibration.

Additionally, the only way to actually clean the area under and around the fingernails was to bend the fingers and move the hand back and forth under the various spray nozzles. The use of pulsating jets, which are an effective means of cleaning the skin, has been shown to cause irritation to the skin, as the high-pressure pulses have the effect of "striking" the skin, causing pain after repeated use. It proved to be very stimulating.

When using the unit, one person should place their hands and arms inside the cleaning device, and another person should turn on the operating switch and, after a predetermined period of time, Two people were required to turn the operating switch "off" at the same time. Furthermore, the openings through which the hands and arms were inserted were not provided with seals to prevent the transfer of bacteria from external sources to the user's arms when the arms were withdrawn.

Accordingly, liquid applied to individuals using cleaning equipment, towels, or other equipment could get around the arms, creating a poor seal and creating a source of bacterial transport.

SUMMARY In this respect, the invention provides a movable tank for collecting a cleaning liquid, a pump device connected to said tank for circulating said liquid under varying pressure, a pump device connected to said circulation pump and directed to the object to be cleaned. In contrast, the present invention relates to a portable cleaning device comprising spaced apart nozzle arrangements for atomizing said liquid under said varying pressure.

This novel invention also provides cleaning fluid;
circulating the fluid under pressure conditions and periodically changing the fluid pressure from a maximum pressure to a minimum pressure;
The present invention also relates to a method of cleaning an object comprising the step of directing said fluid under periodically varying pressure conditions towards the object to be cleaned.

[Brief explanation of drawings]

For these and other objects of the invention,
It will become clear by referring to the following description and drawings. Note that in the drawings, the same numbers indicate the same components.

FIG. 1 is a side view of the novel portable cleaning device.

FIG. 2 is a front view of the apparatus shown in FIG. 1.

FIG. 3 is a partial longitudinal side view showing a fluid distribution manifold and associated nozzles for spraying cleaning fluid onto objects to be cleaned, such as arms and hands.

FIG. 4 is a front view of the manifold flange to which the manifold is connected and from which the manifold cleaning fluid enters.

FIG. 5 is a cross-sectional view of the manifold flange taken along line A-A in FIG. 4.

6 is a front view of the intake flange that holds the manifold flange of FIG. 4 in place and supplies cleaning fluid to the manifold flange; FIG.

FIG. 7 is a sectional view of the intake flange taken along line A-A in FIG. 6.

FIG. 8 is separated by a wall, so that
FIG. 2 is a front view of a housing with two fluid distribution manifolds that allow both arms and hands to be washed at the same time.

FIG. 9 is a plan view of the housing shown in FIG. 8.

FIG. 10 shows a housing and a fluid distribution manifold that receives pressurized fluid and produces an output fluid where the pressure varies from maximum to minimum;
FIG. 3 is a front view of the valve attached to the housing.

FIG. 11 shows the cross-sectional area of the output port gradually and periodically changed from the maximum value when the output port is wide open to the minimum value by gradually reducing the cross-sectional area of the output port. Fig. 2 shows a gradual decrease in the cross-sectional area of the impeller as one of the impellers passes through its associated output port.

FIG. 12 is a front view of one of the impellers shown in FIGS. 10 and 11. FIG.

FIG. 13 is a plan view of the impeller of FIG. 12.

FIG. 14 is a side view of the impeller of FIG. 12.

FIG. 15 is a front view of a rubber sleeve used as a seal with the new cleaning device.

FIG. 16 is a cross-sectional view of the seal shown in FIG. 15.

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a novel aqueous washer 1 mounted on casters or wheels 12 for portability.
FIG.

The aqueous washer 10 has a mechanical portion 14 containing pumps, valves, motors, etc. therein, a tank portion 16 containing the cleaning fluid, and a manifold portion 18 including a liquid distribution manifold.

An electrical control panel 22 is provided, which electrically and automatically determines the duration of the desired wash cycle by turning on the power and spraying fluid onto the arms and hands being washed. Used for the purpose of selecting the period, or number of times per minute.

A rubber sleeve or boot 28 is provided on the inside of the panel 24 and is held in place by a ring 26 shown in FIGS. 3 and 4. This rubber sleeve has a frusto-conical shape, and the hand and arm can be inserted through this rubber sleeve.
It can be inserted into the manifold section for cleaning.

Manifold 20 includes a plurality of hollow tubes or pumps 30 having a plurality of nozzles 32 oriented inwardly toward the user's hands and arms. For clarity, only typical nozzles are shown in FIG. 1.

A plurality of horizontal hollow tubes 30 are mutually parallel and spaced apart in a circular pattern when viewed from the front or rear side of the aqueous washer 10 (as shown in FIG. 2). . Multiple spaced nozzles are
Spray the liquid towards the hand and arm in the center of the circular pattern. Each hollow tube 30 has an inwardly curved end 34 toward the central axis of the circular pattern for attachment to a circular manifold 36. circular manifold 36
receives cleaning fluid from pump 38 and distributes the fluid to horizontal manifold tubes 30.

The bent end 34 of the hollow tube 30 has at least one
Two spray nozzles 40 are provided. at least one spray nozzle 42 spraying a liquid towards and at right angles to the plane of said circular pattern for the purpose of assisting in cleaning the user's fingernails;
It is installed in the center of the circular manifold 36.

to the aqueous washer 10 via an electric cable 46;
A foot mismatch switch 44 is attached. When each of the user's arms is inserted into its corresponding rubber sleeve 28 for cleaning purposes, placing a foot on foot switch 44 may initiate a cleaning cycle.

FIG. 2 is a front view of the portable washer 10 shown in FIG. 1.

In this figure, the unit is also mounted on casters 12 for portability and has a mechanical part 14, a fluid tank part 16, and a manifold part 18 containing two manifolds 20 for distributing the liquid. are doing. On the other hand, for each arm and hand,
There are two liquid distribution manifolds for simultaneous use.

A foot switch 44 is connected to the unit by an electrical cable 46. An electrical control panel 22 is provided on top of the device 10 and includes a power on/off switch, a switch, a timer, a corresponding selection switch, and a switch for controlling the frequency with which the cleaning fluid is directed to the skin of the user of the device. have.

The left and right side liquid distribution manifolds 20 are
It is separated by a wall 48.

Manifold portion 18 includes a top wall 50, an end wall 52,
The back wall 54 and front wall 26 shown in FIG. 1 are preferably constructed of clean plastic. Panel 24 within circle 56 has been omitted from FIG. 2 to more clearly show the ends of parallel, horizontally spaced hollow tubes 30 forming manifold 20 for liquid distribution. .

A level gauge 58 or other device is provided at the front of the aqueous washer 10 to indicate the level of fluid in the storage tank section 16.

FIG. 3 is a side view of a fluid dispensing manifold 20 and nozzles provided to direct the cleaning fluid toward an object to be cleaned, such as an arm or hand.

In FIG. 3, only two of the plurality of parallel horizontally spaced hollow tubes 30 are shown for clarity. Usually, six hollow tubes 30 are used, as shown in FIG.

When viewed from the ends of the tubes, as shown in FIG. It has an end portion 34. Each curved end 34 is located within and supported by an orifice of a circular manifold 36. A circular manifold 36 is attached to the back wall 54 with a manifold flange 58 by bolts or other fasteners that fit into orifices 60.

Seal 62 forms a watertight connection with back wall 54 to prevent leakage from circular manifold 36 and manifold flange 58. The front end of the horizontal hollow tube 30 forming the manifold 20 is connected to the panel 2
It is located in the notch 64 in 4.

The panel 24 can be secured with bolts, screws or other fasteners 6.
6, it is rigidly attached to the front wall 26.
Attached to panel 24 is a rubber sleeve 28, shown in cross-section in FIG. The rubber sleeve 28 is held in place by a sealing ring 68 located on its shoulder 70. Sealing ring 68 is fastened to panel 24 by screws 72 or other fastening devices.

As will become clearer with reference to FIGS. 15 and 16, and will be explained later, the rubber sleeve 2
8 allows the user's arm to be inserted through the sleeve into the cleaning chamber into the center of the circular pattern of horizontal hollow tubes 30. Each hollow tube 30 has a plurality of spaced apart nozzles 32 that spray cleaning liquid toward the center of the circular pattern.

Bent ends 34 of spaced horizontal hollow tubes 30
The upper spray nozzle 40 is similar to the spray nozzle 42 located directly at the front end of the circular manifold 36.
It has a spray angle of 60 degrees, while the nozzles 32 in the horizontal portions of spaced apart horizontal hollow tubes 30 have spray angles of 30 degrees. Spray nozzles 40 and 4
The 60° angle of 2 ensures complete encircling and cleaning of the user's fingernails and fingers of the cleaning device.

The spray nozzle 74 ensures that the end of the rubber sleeve 28 in contact with the user's arm is continuously and completely sprayed with the cleaning fluid, so that the corresponding part of the arm that is not being cleaned and the cleaning device are sprayed continuously and completely with the cleaning fluid. It is positioned in such a way as to reliably prevent the growth of germs in the transition area between the relevant parts of the arm present in the cleaning chamber.

Rubber sleeve 28 has an indentation 76 formed in the truncated end of the conical sleeve.
This recess 76 fits securely around the user's arm and when the arm is withdrawn after the wash cycle is complete.
As a result of the flexibility of the rubber sleeve 28 and the loose fit of the recess 76 around the user's arm, the rubber sleeve 28 will flip from the inside out to the outside as the arm is withdrawn.
This keeps the disinfected inner portion of the rubber sleeve 28 in contact with the disinfected arm. Thus, germs or bacteria are prevented from coming into contact with the arm when it is withdrawn.

FIG. 4 is a front view of a circular flange 36 to which the ends of spaced parallel horizontal hollow tubes 30 forming the fluid distribution manifold 20 are attached.

Orifice 60 is for a screw or bolt that attaches circular flange 36 to back wall 54 of the housing. These holes or orifices 60 are formed in a flange 78 which has an orifice 80 formed therein which connects therein and to an inlet port 88 shown in FIGS. 3 and 5. A cylindrical portion 87 with an inclined surface 82 extends.

An orifice 84 is formed in the flat front surface 86, and a spray nozzle 42 shown in FIG. 3 is installed within the orifice 84.

FIG. 5 is a cross-sectional view of the circular flange 36 taken along line A--A in FIG.

There is a flange 78 on the dorsal side of the base with threaded portions extending partially into the base, as shown in FIG. 5, or as shown in FIG.
It extends generally through the base. In either case, an orifice 60 is formed which is used for the purpose of attaching the circular flange 36 to the back wall 54.

To prevent fluid leakage between the circular flange 36 and the back wall 54, a notch 62 is used as an internally installed seal. Fluid enters inlet port 88 , flows through port 80 to horizontal hollow tube 30 , and exits through orifice 84 to spray nozzle 42 .

Cylindrical extension 87 extending upwardly from base 78
has an inclined surface 82, and this surface 82 has
An orifice 80 is provided. This slope 8
2 is angled at a sufficient angle to allow the curved end 34 of a horizontal hollow tube 30 to be fitted inside, as shown in FIG.

These angles allow cleaning fluid to enter the horizontal hollow tube 30 at a gentle angle instead of at a right angle. Thus, the noise generated when fluid enters the orifice 80 and thus the hollow tube 30 at a 90° angle is reduced.

FIG. 6 is a front view of the intake flange 58 shown in FIG.
It cooperates with circular flange 36 to convey cleaning fluid from the pump to manifold 20 for distribution. This flange is a flat plate 90 with an orifice 60 inserted therein into which screws or bolts or other fastening devices are inserted for the purpose of attaching the inlet flange to the circular flange, as shown in FIG.

FIG. 7 is a cross-sectional view of the intake flange 58 taken along line A--A in FIG. A notch 62 is provided for the purpose of providing an internal seal to prevent fluid leakage between the back wall 54 and the intake flange 58. Fluid enters the flange through the orifice 92 and the circular flange 78 as previously described.
communicate with.

FIG. 8 is a front view of a housing or manifold section 18 including a plurality of parallel horizontally spaced hollow tubes 30 as shown in FIG.

The housing includes a top wall 50, a bottom wall 94, and side walls 52. The central wall 48 divides the housing into two chambers, but as shown, the dividing wall 48 only partially divides the two chambers.

The bottom wall 94 is actually the top wall of the tank section 16 that holds the fluid and drains excess fluid from either chamber formed by the central dividing wall 48 where the fluid can be recirculated. Transfer the fluid to tank part 1
An orifice 96 for discharging the liquid into the inside is provided inside.

The back wall 54 is provided with orifices 60 for bolts or screws or other fastening devices to fasten the circular flange 36 and inlet flange 58 to the back wall 54. The orifice 98 has a circular flange 36
and receives fluid from an orifice 92 on the intake flange 58 .

Bolts, screws, or other attachment devices are inserted into orifices 66 in the front wall 26 for the purpose of fastening the front panel 24 to the front wall 26, as shown in FIG.

FIG. 9 is a plan view of the housing shown in FIG. 8, and in particular, orifices 96 in the bottom wall 94 are shown in FIG. , showing a partially extended style.

An orifice 98 is shown in the back wall 54 for channeling cleaning fluid from the intake flange 58 to the circular flange 36. Inside the front wall 26 is a panel 2
4 on the front wall 26
0 is shown.

The preferred material for the top, side, back, front, and bottom walls is 1/2 inch (12.7 mm) thick clean flexiglass, but any metal or other material may be used as long as it is corrosion resistant. Materials can also be used.

FIG. 10 is a front view of a housing and a valve attached to the housing for receiving pressurized fluid and producing partial fluid to a fluid distribution manifold where the pressure varies periodically from a maximum to a minimum; be.

One of the problems associated with the prior art lies in the fact that pulsating jets of cleaning fluid are utilized.
Since the liquid fluid supply is alternately switched fully on and fully off at high frequency, abrupt stops and surges of the fluid create significant percussion effects that create unacceptable noise levels. Close.

It is therefore necessary to vary the pressure of the fluid periodically from maximum to minimum without completely interrupting the flow of the liquid fluid.

Therefore, in FIG. 10, the two-speed motor 1
02 drives V-belt pulley 104 via shaft 106. The V-belt 108 is connected to the shaft 112
A V-belt pulley 104 is connected to a large pulley 110 installed above. The shaft 112 is
It projects into a valve housing 114 having two output ports 116 and 118 and an input port 120.

Cleaning fluid enters input port 120 under pressure from a source such as a pump, not shown. Two impellers 122 and 124 are provided on the shaft 112 inside the valve housing 114.

As seen in connection with FIG. 12, impellers 122 and 124 are generally figure eight-shaped and spaced 90 degrees apart. The width of the flanges forming the upper and lower parts of the impeller due to the figure 8 design is the same as the output port 11.
It is shorter than the diameter of 6 and 118.

Therefore, as can be seen from FIG. 10, the flange 126 of the impeller 124
18 to its maximum state and orifice 118
Only a small portion of the orifice allows cleaning fluid to flow freely to the fluid distribution manifold 20 to which the orifice is connected.

However, impeller 122, which is rotatably spaced 90 degrees from impeller 124, has its upper flange 128 and lower flange 130 aligned with orifice 1.
16, thus increasing the maximum water pressure to the fluid distribution manifold 20 to which this orifice is connected.
It can flow to.

However, with a lag of 90°, impeller 124
moves its flange away from orifice 118, while impeller 122 moves its upper flange 12 away from orifice 118.
8 or lower flange 130, the orifice 116 is closed to its maximum pressure.

Therefore, the fluid connected from orifice 116 to fluid distribution manifold 20 is at its maximum pressure. This unique structure allows fluid to be distributed to each cleaning unit within each housing out of phase with each other, thus
This allows for quieter operation of the device.

As explained above, it is important that the fluid is not completely stopped or pulsated to reduce noise levels and to allow continuous use without skin irritation. It is. This is accomplished by the shape of the upper and lower flanges forming each impeller 122 and 124.

As understood from Fig. 10, impeller 1
Each end of the flanges forming 22 and 124 are beveled. In FIG. 11, impeller 122
Assume that the upper flange 128 of is beginning to move into the orifice 116.

At point A, the flange is just outside the orifice and maximum pressure is passing through the orifice 116.

At point B, flange 128 is being driven so that the tip of the flange is just entering orifice 116 and begins to gradually cut off fluid flow.

At point C, the tip of flange 128 is
The drive is such that approximately 1/4 of the fluid flow is reduced through orifice 116.

At point D, impeller 122 is sufficiently driven into orifice 116 to cut approximately half of the fluid flow.

At point E, flange 128 of impeller 122 has moved far enough through orifice 116 to close approximately 3/4 of the fluid flow.

At point F, flange 128 has moved sufficiently through orifice 116 to reduce fluid flow to approximately its minimum pressure.

Finally, at point G, the flange 128 of the impeller 122 has moved entirely into the orifice 116 and the fluid is directed to each side 132 of the flange 128.
The flow of fluid is closed to the minimum state so that it can pass only on the side of 134 and 134.

Therefore, the pressure of the fluid changes periodically, with changes occurring gradually between maximum and minimum pressure points and vice versa.

As explained previously, when the pressure of the fluid suddenly decreases to zero pressure and rapidly increases to maximum pressure,
This is extremely important since the pulsating jet flow can cause percussion effects and create unacceptable noise levels.

Furthermore, the motor 102 rotates at 400 rpm,
When impellers 122 and 124 are in a figure-eight configuration, each impeller flange
In one rotation, it passes through the output orifice twice,
The resulting cleaning fluid changes its pressure 800 times per minute, and the motor speed
If the cleaning fluid pressure increases by 600rpm,
It can be changed from maximum value to minimum value 1200 times per minute. This effect irritates the skin when the water is pulsed or the pressure is changed from zero pressure to maximum pressure.

According to the invention, the pressure is gradually changed from maximum to minimum pressure and there is no violent discharge pressure, the skin is compressed and effectively removed from the follicles and dirt and bacteria in the skin folds. There will be no compression, yet the stimulating effect of the pulsed jet of fluid will be absent.

Although one of the impellers 122 is shown in FIG. 12, the other impeller 124 is constructed in a similar manner. Impeller 122 has an upper flange 128 and a lower flange 130 and has an overall figure eight shape. Each end 136 of upper flange 128 and each end 138 of lower flange 130 meet at point 140, as shown in FIG.
cut at an angle to form a

As previously explained, this causes one end of the impeller to gradually enter its output orifice, blocking pressure, and then the other end to gradually leave the orifice, restoring pressure. , producing a periodically varying pressure, rather than a "pulsating" pressure.

The orifice 142 is for inserting the drive shaft 112 connected to the motor 102 by a V-belt. The orifice 144 is a set screw or other type of tightening unit that connects the impeller 122.
can be attached to the shaft 112.

The width of the flange 128 is such that it does not completely block the output orifice 116 shown in FIG. The closed area of the output orifice,
The preferred ratio of open area has been found to be 82% to 18%. This means that when the impeller flange closes the discharge opening to its maximum value, 82% of the output orifice 116 is closed, at which point 18% of the output orifice 116 remains open. There is.

This allows approximately 442.2 liters (117 gallons) per minute to be transferred through the output orifice when the orifice is fully open;
It can flow approximately 86 liters (20 gallons) per minute in its half-closed position. Therefore, the fluid pressure changes periodically from a maximum value to a minimum pressure value in a gradual manner between two pressure limit values.

The minimum pressure that should be tolerated is that value that cleans the skin without skin irritation and is sufficient to allow quiet operation of the device. Both of these drawbacks occur when the fluid is pulsed or completely shut off and then rapidly pulsed.

The length of flanges 128 and 130 from approximately midway about point 138 to midway about the other point 138 and from midway about 136 to midway about the other end 136 is approximately
It is 67°.

On the other hand, the corresponding open area between the two ends 128 and 130 measures approximately 113 degrees. This means that the output valve is open for a considerably longer length than when it is closed, causing the arms and hands to spend a considerable amount of time during irrigation at maximum pressure.

FIG. 14 is a side view of the impeller 122.

FIG. 15 is a front view of the rubber sleeve 28 illustrated in FIG.
46 and a recess or groove 76 at its end.

FIG. 16 shows, in cross section, how the rubber sleeve looks when installed on the installation flange 24 shown in FIG.

The sleeve has a flange 70 located within a recess 148 on which a screw 152 is mounted.
a sealing ring 15 held in place by
0 is set. The flange 70 is slightly thicker than the recess. Flange 70 is amber white Amtex Latex rubber component number
Made of rubber such as 15030, it holds firmly in place.

The rubber sleeve 28 has a truncated cone 146 terminating in a recess 76 at the end through which the arm and hand must pass. This structure is extremely important for hygienic purposes. the whole arm,
When placed inside a rubber sleeve to reach the interior of the sanitary device, the recess 76 is made of rubber and is therefore elastic in nature;
The recess fits loosely around arms of all sizes.

As understood from FIG. 3, the nozzle 74 is
Cleaning fluid is directed against the inner surface of rubber sleeve 28 during a cleaning operation. When pulling out the arm, the recess 76 is
Hold firmly around the arm and pull the rubber sleeve with the inside out as the arm is withdrawn.

Once the inside of the rubber sleeve is completely turned outward and the arm is removed from the rubber sleeve,
Only the disinfected inner surface of the rubber sleeve 28
It comes into contact with the relevant part of the body that has been washed.
Thus, the cleaned arm is not exposed to uncleaned equipment or any parts of the equipment that may contain germs.

Therefore, the depression 76 illustrated in FIG.
While the arms and hands are removed from the rubber sleeve, they remain in contact with the disinfected inner surface of the rubber sleeve 28 to prevent contamination of the cleaned arms and hands. The U-shaped recess 76 allows arms of different sizes to fit loosely within the rubber sleeve. Rubber sleeves are flexible and can be indented to prevent cessation of blood flow in the case of large arms.

As shown in FIG. 1, a timer is provided inside the electric control panel 22. This timer can be set to a predetermined period of time, for example 90 seconds. It also automatically shuts off the unit after a preset time has elapsed.

The present invention relates to a unique cleaning device that saves lives and saves valuable time.
The present invention reduces cleaning time by approximately 85% compared to a standard 10 minute pre-surgical cleansing, achieves consistent pre-surgery cleansing results throughout, is less irritating to the skin, and is easier to use. A large number of products are cost- and energy-efficient, save time, improve cleaning, improve safety and cleanliness, eliminate many bacteria on the skin, and eliminate the risk of contamination. It has advantages.

Although the invention has been described in terms of preferred embodiments, the preferred embodiments are not intended to limit the scope of the invention to the particular embodiments described; It includes the technical idea of the present invention as defined in the claims, as well as modifications, modifications, and equivalent contents that fall within the scope.