JPH11342144A - Urine suction device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a calm urine suction device of high durability. SOLUTION: In this urine suction device, a urine receiver 2 is connected by a urine suction tube 3 to a suction connection port 1a of a urine suction device main body 1, it is branched up and down from the suction connection port 1a, a three-way solenoid selector valve 5, a sensor pump 6, and a differential pressure switch 7 to compose a urination detection means 4 are connected by a sensor pipe line 8 at an upper part, and by a urine suction pipe line 9 interposing at a lower part a self-section liquid pump 10 for urine suction, the urine suction device is connected to a urine tank 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a durable urine suction device having a quiet sound for a so-called bedridden elderly person or a person who has difficulty disposing of urine by himself or herself.

[0002]

2. Description of the Related Art Applicants first connect a urine suction tube from a urine receiver to a urine tank and a second air suction tube from the urine tank to a main pump as a urine suction device. A check valve is interposed in the vicinity of the tank, and a first air suction tube is connected to the sensor pump by branching from the urine suction tube upstream of the check valve, and a differential pressure switch is connected to the first air suction tube. And connect
During standby for urination, a weak suction is performed by the sensor pump, and when the air resistance due to urine in the urine tube accompanying urination increases, the differential pressure switch detects a corresponding differential pressure change and activates the main pump to disconnect the urine tube. A device for sucking urine into a urine tank through the device has been proposed (Japanese Patent Application No. 7-21203).

[0003]

In the above device, when urination is detected by weak suction, a main pump composed of an air pump operates via a urine tank to strongly suck urine into the depressurized urine tank. The suction noise caused by the high speed rotation of the main pump has a problem that it is loud at midnight and disturbs sleep. In addition, since negative pressure is created by the suction of air, moisture easily evaporates and urine residue adheres to check valves and urine tanks. In addition, there is a problem that the urine cannot be detected or the urine cannot be absorbed when the posture changes due to turning over.

[0004] It is an object of the present invention to solve the above-mentioned problems and to provide a durable urine suction device with a quiet sound produced by a liquid pump.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a self-priming liquid pump in a suction line for discharging urine received by a urine receiver through a urine suction tube and a suction line. It is provided that a urination detecting means is provided in the suction line on the upstream side of the self-priming liquid pump and the control means for operating the self-priming liquid pump in response to the urine detection of the urination detecting means. Features.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a system diagram of a urine suction device according to a first embodiment of the present invention, wherein 1 denotes a urine suction device main body, 2 denotes a urine receiver, 3 denotes a urine suction tube, and the urine receiver 2
Is made of a soft and relatively inexpensive material having flexibility so as to be disposable, in a shape that can be attached to a local part of a bedridden elderly person or the like with a diaper or the like, and is detachable from the urine suction tube 3. Is configured. The other end of the urine suction tube 3 is formed so as to be inserted and connected to a suction connection port 1a provided in the urine suction device main body 1.

In the main body 1 of the urine suction device, the sensor line 8 branches above the suction connection port 1a and the urine suction line 9 below, and the upper sensor line 8 detects urination. Self-priming liquid pump for urine suction is connected to a three-way electromagnetic switching valve 5, a sensor pump 6, and a differential pressure switch 7, which constitute urination detecting means 4 for urine suction. 10 are connected.

The urine suction pump is a type of liquid pump classified into a positive displacement type. Generally, the liquid pump needs priming before starting operation and needs to fill the pump chamber with water. Urine can be sucked at any time by using a self-priming pump that does not require priming, and a plurality of pump chambers can be provided with one drive shaft. Can be sucked.

That is, as shown in FIG. 3, the self-priming liquid pump 10 comprises a casing 10c comprising a flat and cylindrical casing body 10a and a casing lid 10b, and the casing 1c.
0c, a disc-shaped rotor 11b rotated by a drive shaft 11a is formed, and as shown in FIG. 4, a convex portion 11c having a gentle mountain-shaped cross section is formed on the periphery of both surfaces of the rotor 11b. At the periphery of the inner surface, a plate-shaped valve 13 whose tip is always in sliding contact with the periphery of the surface of the rotor 11b by the resilience of a valve spring 13a is provided. The discharge port 15 is formed.

Here, when the rotor 11b rotates in the direction indicated by the white arrow in FIG. 4, the volume A between the convex portion 11c provided on the rotor 11b and the valve 13 becomes narrower, and the volume A is increased. Air and liquid are discharged from the valve 15, and when the valve further rotates, the volume B between the convex portion 11 c passing through the valve 13 and the valve 13 increases, the pressure is reduced, and the air or liquid is sucked from the suction port 14.

As described above, independent pump chambers can be formed on both surfaces of the rotor 11b, and two systems of suction can be performed with one drive shaft.

Although not shown, two or three projections 11c are formed on one side of the rotor 11b by 180 ° or 120 °.
° and the valves 1 respectively corresponding to the plurality of convex portions 11c.
3. If the suction port 14 and the discharge port 15 are provided in the casing 10c, a plurality of pump chambers can be formed only on one side,
On both sides, two to six pump chambers are possible, and a plurality of systems of urine suction can be performed.

In FIG. 1, a urine tank 16 and a deodorant bottle 17 are provided on the discharge side of the self-priming liquid pump 10.

The discharged liquid from the self-priming liquid pump 10 is guided to the urine tank 16 by a discharge passage 21 and is sent from the three-way electromagnetic switching valve 5, the sensor pump 6, and the differential pressure switch 7 constituting the urination detecting means 4. Is discharged into the urine tank 16 through the sensor line 8, and the air flow is further discharged to the deodorizing bin 17 through the exhaust path 22 to be deodorized. It is released to the atmosphere from the port 17a.

The three-way electromagnetic switching valve 5 of the urination detecting means 4
Control device 18 for controlling the sensor pump 6, the differential pressure switch 7, the drive motor 20 of the liquid pump 10, etc.
Are connected by a line 19 shown by a dotted line.

Further, a description will be given of a sub-suction system for coping with posture changes such as turning over.

When one suction system is used, urination detection and urine suction may not be performed when the patient is turned from the supine position to the lateral position due to turning over, and it is effective to provide a sub-suction system for the prevention. Become.

That is, the auxiliary suction system includes an auxiliary suction tube 3 'connected to the urine receiver 2, and an auxiliary urine suction tube 9' connected to the auxiliary suction tube 3 'via the auxiliary suction connection port 1'. The sub-self-priming liquid pump 9 ′ interposed in the auxiliary urine suction pipe 9 ′ is linked with the operation of the self-priming liquid pump 9.

The urine suction tube 3 connected to the urination detecting means 4 of the urine receiver 2 is arranged at a position to directly receive urine discharged from the urethra to ensure urine detection, and The suction tube 3 ′ is arranged at a position below the urine receiver 2 in the supine position.

As shown in FIG. 2, when only one system is used for suction, the urine suction tube 3 is located below the urine receiver 2, and the self-priming liquid pump 10 is provided with two suction ports 14 and a discharge port 15 as shown in FIG. The two pumps are connected to each other and used as a single pump to reduce pulsation and reduce the number of revolutions by half to reduce noise.

The self-priming liquid pump 10 of the present invention is quiet because it rotates at a low speed of several tens to 100 times per minute, and the sensor pump 6 of the urination detecting means 4 is intermittently operated at intervals of 3 seconds. By operating, the sound becomes quieter so that it does not hinder sleep.

Next, the operation of the first embodiment will be described.

The urine receiver 2 is brought into contact with a local part such as an elderly person,
In response to a control command from the control device 18, the three-way electromagnetic switching valve 5 closes its port b to establish a communication state between the ports a and c, and activates the sensor pump 6 to generate a small pressure difference in the differential pressure switch 7 and a urination waiting state. Keep it. As shown by the dotted arrow, the air path in the urination standby state is discharged from the urine receiver 2 through the urine suction tube 3 into the urine tank 16 from the sensor pump 6 and further deodorized via the deodorizing bottle 17 and then exhausted. Release to the outside through the mouth 17a.

Then, when urine is discharged, the urine is transferred to the urine receiver 2.
The urine starts to flow into the urine suction tube 3, and the urine flows into the urine suction tube 3 to increase the resistance of the air flow in the suction channel, so that the differential pressure of the differential pressure switch 7 increases. The pressure switch 7 outputs a detection signal to the control device 18.

The port c of the three-way electromagnetic switching valve 5 is closed and the ports a and b are communicated with each other in accordance with a control command of the control device 18 to which the detection signal is inputted, and the differential pressure switch 7 is communicated with the atmosphere.

When the three-way electromagnetic switching valve 5 is switched, the self-priming liquid pump 10 operates for a predetermined time considerably longer than the average urination time in accordance with a control command from the control device 18.

When the self-priming liquid pump 10 starts to operate, a small amount of air in the urine suction tube 3 is also initially sucked, and then the urine is sucked, and the last time is longer than the urination time as described above. The air is also sucked because the air is long.

After a lapse of a predetermined time of operation of the self-priming liquid pump 10, the three-way electromagnetic switching valve 5
Is closed, and the ports a and c are communicated with each other to return to the urination waiting state.

When the urine tank becomes full due to urination, replacement or cleaning is performed. An antifoaming agent is also added to prevent foaming as urine accumulates.

Next, a second embodiment will be described with reference to FIG.

The second embodiment is characterized in that the self-priming liquid pump is operated intermittently without using the urination detecting means.

In FIG. 5, the urine suction tubes 3, 3 'are connected to the urine receiver 2, and the self-priming liquid pumps 10, 10' are connected.
The urine was discharged to the urine tank 16 through the air outlet, and the urine tank 16 was provided with an exhaust port 23 in which a deodorant filter 24 was fitted.

The self-priming liquid pumps 10 and 10 'are operated by a driving means 25 intermittently driven by a predetermined program instead of the urination detecting means 4.

The predetermined program is, for example, to operate the pump for one minute at three-minute intervals, or to return to five-minute intervals for the first hour, two minutes for the second two hours, and then to five-minute intervals thereafter. I do.

The intermittent drive of the pump makes it possible to simplify the apparatus without detecting urine.

Referring to FIG. 6, an example of a portable urine suction device main body 1 will be described.

The urine tank 16 of the urine suction device main body 1 is in the form of a transparent glass or plastic bottle, and the self-priming liquid pump 10, the drive motor 20, and the deodorizing filter 24 are fitted on the upper surface of the lid 26. The exhaust port 23 is provided.

This portable urine suction device 1 is small, easy to handle, and can perform urine suction several times.

It is to be noted that a urination detecting means may be added as in the first embodiment, and the urine tank 16 may be a bag-shaped one instead of a bottle-shaped one because a negative pressure is not applied.

[0040]

As described above, according to the present invention, the self-priming liquid pump prevents water in the suction passage from evaporating to increase the durability, and has the effect of enabling a quiet operation. The suction has an effect corresponding to a change in posture such as turning over.

[Brief description of the drawings]

FIG. 1 is a system layout diagram according to a first embodiment of this invention.

FIG. 2 is a connection diagram to another example pump.

FIG. 3 is an exploded perspective view of the self-priming liquid pump.

FIG. 4 is a development operation diagram of the pump.

FIG. 5 is a system layout diagram according to a second embodiment of this invention.

FIG. 6 is an explanatory cross-sectional view of one example.

[Explanation of symbols]

 Reference Signs List 1 urine suction device main body 2 urine receiver 3 urine suction tube 4 urine discharge detection means 5 three-way electromagnetic switching valve 6 sensor pump 7 differential pressure switch 8 sensor line 9 urine suction line 10 self-priming liquid pump 16 urine tank 17 deodorant bottle 18 Controller 19 Line 20 Drive motor

Claims (4)

[Claims] 1. A self-priming liquid pump is interposed in a suction line for discharging urine received by a urine receiver through a urine suction tube and a suction line, and the suction is provided upstream of the self-priming liquid pump. A urine suction device comprising: a urination detection means provided in a conduit; and control means for operating the self-priming liquid pump in response to urine detection by the urination detection means. 2. A self-priming liquid pump is interposed in said suction line for discharging urine received by a urine receiver via a urine suction tube and a suction line, and said self-priming liquid pump is intermittently driven by a predetermined program. A urine suction device comprising: a driving unit that performs 3. A sub-self-priming liquid pump is interposed in the sub-suction line for discharging urine received by the urine receiver through a sub-urine suction tube and a sub-suction line. The urine suction device according to claim 1, wherein a liquid pump is interlocked with the self-priming liquid pump. 4. The self-priming liquid pump or the sub-self-priming liquid pump, wherein a disk-shaped rotor is pivotally supported in a cylindrical casing and a donut-shaped flow path is formed between the casing and the facing surface of the rotor. The rotor has an opposing surface formed with a gentle mountain-like projection having a top that slides on the opposing surface of the casing over the width of the flow path. A plate-like valve having a width of the flow path which moves forward and backward in accordance with the protrusion while slidingly contacting the opposed surface of the valve, and has an intake port at a position in front of the valve on the opposed surface of the casing, and a rear position of the valve. 4. A discharge port is formed in each of the first to third embodiments.
The urine suction device according to any one of the above.