JP5164739B2 - Excrement disposal device - Google Patents

Description

  The present invention relates to an excrement disposal apparatus, and is particularly suitable for an excrement disposal apparatus that processes excrement by attaching a excrement receiver equipped with a sensor that detects excretion to a person.

  An excrement processing apparatus has been devised that treats urination by attaching an excretion receiver to people who are difficult to walk on their own, hospitalized patients, and the disabled.

  As a conventional excrement disposal apparatus, for example, there is one disclosed in Japanese Patent Application Laid-Open No. 2005-102979 (Patent Document 1).

  The excrement disposal apparatus of Patent Document 1 includes a urine receiver worn by a person, a urine tank that collects urine, a urine guide tube that leads urine from the urine receiver to the urine tank, and urine from the urine receiver through the urine guide tube. A vacuum pump that sucks and accumulates in the urine tank and a control device that controls the vacuum pump are provided.

  The urine receiver includes a urine return suppression sheet having a funnel-shaped hole formed between a top sheet and a urine absorption sheet, and a urine detection sensor disposed between the top sheet and the urine return suppression sheet. Has been. This urine detection sensor is configured by arranging a pair of electrodes bonded in parallel to an electrode support sheet and connecting a signal line to the electrodes. This signal line is connected to the control device.

  And in the excrement disposal apparatus of patent document 1, if urine is stored between a pair of electrodes, the conduction surfaces of a pair of electrodes will energize and will detect urination. This urine detection signal is applied to the control device via the signal line, and the control device drives the vacuum pump. By driving this vacuum pump, the air pressure in the urine tank is reduced and negative pressure is generated at the urine inlet of the urine receiver. Urine is sucked into the urine guide tube by this negative pressure and is guided to and stored in the urine tank. .

  Moreover, as another conventional excrement processing apparatus, there exists a thing shown by Unexamined-Japanese-Patent No. 2008-8791 (patent document 2), for example.

  The excrement disposal apparatus of Patent Document 2 includes an excrement receiver that is worn by a person, a tank that collects urine, a tube that guides urine from a tray provided in the excrement receiver to the tank, and a tube from the excrement receiver. A vacuum pump that sucks urine through the tank and stores it in a tank, and a control device that controls the vacuum pump.

  The excrement detection sensor provided in the excrement receiver is configured by sandwiching two pairs of conductive wires (electrodes) extending side by side between a waterproof and insulating support and a covering. This excrement detection sensor is installed by being sandwiched between various laminated sheets in the excrement receiver. A urine introduction hole of the excretion detection sensor is provided in a part that receives urine in the excrement receiver, and a stool introduction hole of the excretion detection sensor is provided in a part that receives stool. In addition, a urine tray is provided below the excretion detection sensor in the portion receiving urine in the excretion receiver. This tray is connected to a vacuum pump via a tube.

  And in the excrement disposal apparatus of patent document 2, when the person wearing the excrement receiver discharges urine, the urine soaks into the part receiving the urine of the excrement receiver and further penetrates into the excrement detection sensor side. Then, it contacts the surface of the excrement detection sensor and enters the urine introduction hole, thereby short-circuiting one pair of conductors. As a result, a urine generation signal is sent from the excretion detection sensor to the control device, and the control device receives the signal to operate the vacuum pump and sends the urine from the tray to the tank.

  When the person wearing the excrement receiver discharges the stool, the stool moisture penetrates the stool receiving part of the excrement receiver toward the excrement detection sensor and touches the surface of the excrement detection sensor. It penetrates into the stool introduction hole and short-circuits between the other pair of conductors. As a result, a signal indicating the occurrence of defecation is sent from the excretion detection sensor to the control device, and the control device activates an alarm device that informs that defecation has occurred.

JP 2005-102979 A JP 2008-8791 A

  In the excrement disposal apparatus of Patent Document 1 described above, impurities in urine accumulate on the conductive surfaces of the pair of electrodes, the sensitivity of the urine detection sensor becomes dull, and even if there is urination, the urine detection sensor cannot immediately detect it, There was a problem that urination processing could not be performed. In addition, in the excrement urine processing apparatus of patent document 1, it is not disclosed about the detection of the discharged | emitted stool.

  On the other hand, in the excrement disposal apparatus of Patent Document 2 described above, impurities in urine or fecal water accumulate on the conductive surfaces of the two pairs of wires, and the sensitivity of the excrement detection sensor becomes dull, and there is urination and defecation. Cannot be detected by the excrement detection sensor, and urination cannot be performed.

  Furthermore, in the excrement disposal apparatus of Patent Document 2, when discharged urine enters both the urine introduction hole and the stool introduction hole and adheres across the conductor on the urine detection side and the conductor on the stool detection side, If the discharged stool enters both the stool introduction hole and the urine introduction hole and adheres over the conductor on the stool detection side and the conductor on the urine detection side, urination and defecation cannot be detected separately There was a problem.

  An object of the present invention is to provide an excrement processing apparatus that can stabilize the sensitivity of an excretion detection sensor, detect urination immediately and reliably, and perform urination processing.

  Another object of the present invention is to provide an excrement disposal apparatus capable of reliably distinguishing and processing urination and defecation.

A first aspect of the present invention for achieving the above object includes an excrement receiver to be worn by a person, and an apparatus main body to which the excrement receiver is detachably connected, and the excrement receiver is worn A receiver main body for receiving excretion excreted from a person, and an excretion detection sensor for detecting the excreted excretion, wherein the apparatus main body includes a urine tank for collecting urine and urine received by the receiver main body comprising a vacuum pump for sucking into the urine tank, and a control device for controlling the vacuum pump, the excrement detection sensor includes a pair of electrodes of the urine sensor for detecting the urine received by the receiver body and urine detection sensor, a excrement urine processing device including a defecation sensor having an electrode of the pair of stool detection for detecting the feces received by the receiver body, said Control device controls so as to perform switching between flights detection due to an addition of the voltage detection and the electrode of the defecation sensor urine due to an addition of the voltage to the electrodes of said urine detection sensor, the exhaust The control is to intermittently apply a voltage between the electrodes of the urine detection sensor .
Moreover, the 2nd aspect of this invention is equipped with the excrement receiver with which a person is mounted | worn, and the apparatus main body which connected the said excrement receiver so that attachment or detachment was possible, and the said excrement receiver is excretion excreted from a wearer. A receiver main body for receiving an object, and an excrement detection sensor for detecting the excreted excrement, wherein the apparatus main body sucks the urine tank for collecting urine and the urine received by the receiver main body into the urine tank. A urine detection sensor having a pair of urine detection electrodes for detecting urine received by the receiver main body, and a control device for controlling the vacuum pump. An excretion urine processing apparatus comprising a defecation detection sensor having a pair of defecation detection electrodes for detecting feces received by a receiver body, wherein the control device includes the urination Detection of urine by applying a voltage to the electrode of the intelligent sensor, detection of stool by applying a voltage to the electrode of the defecation detection sensor, polarity reversal of the electrode of the urination detection sensor, polarity of the electrode of the defecation detection sensor The control is performed repeatedly in the order of inversion, and the control is performed such that a voltage is intermittently applied between the electrodes of the urination detection sensor.

According to excretions processing apparatus of the present invention according, can urinate accurately detected and treated urination to stabilize the sensitivity of the excrement detection sensor.

Furthermore, according according to excretions processing apparatus of the present invention can be processed reliably distinguish the urination and defecation.

  Hereinafter, an excrement disposal apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 to 8.

  As shown in FIG. 1, the excrement disposal apparatus 100 includes an excrement receiver 1 and an apparatus body 2. The excrement receiver 1 and the apparatus main body 2 are detachably connected via the urinary tube 30, the electric wires 61 and 62, and the connector 42. FIG. 1 is an overall configuration diagram of the excrement disposal apparatus 100 of the present embodiment.

  As shown in FIG. 1 and FIG. 2, the excrement receiver 1 is mounted between the crotch of a person who is difficult to walk by himself, an inpatient, a disabled person, etc., and receives the urine and feces excreted from the wearer. The excrement detection sensor 20 for detecting excreted urine and feces, and the excretion of the excreted urine from the receiver body 10 to the urine tank 51 are provided with a urine guide tube 30. This excrement receiver 1 is formed of a flexible material. FIG. 2 is an enlarged cross-sectional view of the excrement receiver 1 of FIG. 1. In FIG. 2, for ease of understanding, the above-described members are expressed in a separated state. Yes.

  The urine introduction part 28 of the excretion detection sensor 20 is set in the part 10a that receives the urine of the receiver body 10, and the stool introduction part 29 of the excretion detection sensor 20 is set in the part 10b that receives the stool. The excrement detection sensor 20 is used in a state of being sandwiched between the laminated sheets of the receiver body 10. A urine tray 13 is provided below the excrement detection sensor 20 in the portion 10a of the receiver body 10 that receives urine. The urine tray 13 is connected to the urine tank 51 via the urine tube 30. The urine in the urine tray 13 is sent into the urine tank 51 by the suction operation of the vacuum pump 52. The excretion detection sensor 20 may be configured such that a plurality of urine introduction units 28 and a plurality of stool introduction units 29 are alternately arranged. In this case, urination detection and defecation detection can be more reliably performed. it can.

  As shown in FIG. 2, the receiver main body 10 includes a back sheet portion 12, a urine tray 13, a surface material portion 14, a surface sheet portion 15, and a gather portion 16, and these are stacked in order from the bottom.

  The urine tray 13 is provided in a space between the liquid-permeable sheet 13a, the leak-proof sheet 13b disposed on the wearer-side surface of the liquid-permeable sheet 13a, and the liquid-permeable sheet 13a and the leak-proof sheet 13b. The space holding member 13c is provided. The space between the liquid-permeable sheet 13a and the leak-proof sheet 13b is a closed space, and the urinary tube 30 is connected so as to communicate with the closed space. The space holding member 13c is spherical and holds the space between the liquid-permeable sheet 13a and the leak-proof sheet 13b.

  The surface material portion 14 is provided on the surface of the liquid permeable sheet 13a on the side opposite to the wearer, and temporarily receives urine excreted from the wearer. The surface sheet portion 15 covers the surface of the liquid permeable sheet 13a on the wearer side.

  The back sheet portion 12 covers the anti-wearer side surface of the leak-proof sheet 13b in order to prevent urine from leaking from the urine tray 13. The topsheet portion 15 and the backsheet portion 12 have a gourd shape and are joined so as to be in close contact with each other at the periphery.

  As shown in FIG. 3 to FIG. 5, the excrement detection sensor 20 has two pairs of electrodes 21, 22, 23, 24 extending side by side, and a waterproof and insulating belt-like support body 26. It is sandwiched between the belt-like covering body 27 having a characteristic. 3 is a plan view showing the excrement detection sensor 20 of FIG. 1 divided into two parts, FIG. 4 is a cross-sectional view taken along line AA in FIG. 3, and FIG. 5 is a cross-sectional view taken along line BB in FIG.

  The covering 27 is formed with at least a pair of urine introduction parts 28 for associating a pair of electrodes 21 and 22 with each other and a pair of fecal introduction parts 29 for associating other pairs of electrodes 23 and 24 with each other. Although the urine introduction part 28 and the stool introduction part 29 are formed with square holes in the illustrated example, they may be formed with notches formed on both sides of the covering body 27. When urine A enters the associated urine introduction part 28, the pair of electrodes 21 and 22 are short-circuited as shown in FIG. When the stool B enters the associated stool introduction section 29, the other pair of electrodes 23 and 24 are short-circuited as shown in FIG.

  The support body 26 supports the entire excrement detection sensor 20 and is formed as a bendable strip. The support 26 has a waterproof property so as not to allow moisture to pass therethrough, and has an insulating property so as not to allow electricity to pass.

  The two pairs of electrodes 21, 22, 23, and 24 extend in parallel along both side edges of the belt-like piece that is the support 26. Among these, the inner pair of electrodes 21 and 22 are used for urination detection, and the outer pair of electrodes 23 and 24 are used for defecation detection. Terminal portions 21a, 22a, 23a, and 24a having relatively large areas are formed at base ends that connect the connectors 42 of the two pairs of electrodes 21, 22, 23, and 24, respectively. In addition, extended portions 23b and 24b are formed at the terminals on the opposite terminal side of the defecation detection electrodes 23 and 24, respectively. The extended portions 23b and 24b, which are the ends of the defecation detection electrodes 23 and 24, are provided at the end of the support 26, while the ends of the urination detection electrodes 21 and 22 are the extended portions of the defecation detection electrodes 23 and 24. It ends at a position closer to the base end side than 3b and 4b. That is, the ends of the urination detection electrodes 21 and 22 and the vicinity thereof and the expanded portions 23b and 24b of the stool detection electrodes 23 and 24 correspond to the urine receiving portion 10a and the stool receiving portion 10b, respectively. Is located.

  The covering 27 is laminated on substantially the entire surface of the support 26 except for the terminal portions 21 a, 22 a, 23 a, 24 a and the introduction portions 28, 89 from above the electrodes 21, 22, 23, 24. The covering body 27, together with the support body 26, insulates and waterproofs the electrodes 21, 22, 23, 24 and the extended portions 23 b, 24 b from the outside.

  The covering 27 is formed with a urine introduction part 28 for locally exposing the pair of electrodes 21 and 22 for detecting urination and introducing urine. A plurality of the urine introducing portions 28 are provided symmetrically with respect to the longitudinal center line of the support 26 at the ends of the urination detection electrodes 21 and 22 and in the vicinity thereof. As shown in FIG. 4, when urine A adheres so as to straddle the urine introduction part 28 on the pair of electrodes 21 and 22 for urine detection, a current is short-circuited between the electrodes 21 and 22, and thereby The discharge of urine A is detected. The electrodes 21 and 22 for urination detection are called urination detection sensors.

  Further, the covering 27 is formed with a stool introduction portion 29 that locally exposes the pair of electrodes 23 and 24 for detecting defecation and introduces stool. The stool introduction portions 29 are provided one by one symmetrically with the longitudinal center line of the support body 26 as the symmetry axis in the extended portions 23b, 24b of the defecation detection electrodes 23, 24. As shown in FIG. 5, when the stool B adheres across the stool introduction part 29 on the pair of electrodes 23 and 24, the current flows between the pair of electrodes 23 and 24 in a short-circuited state. Adhesion is detected. The defecation detection electrodes 23 and 24 are called defecation detection sensors.

  The support body 26 and the covering body 27 are formed with a plurality of urine passage holes 25 so as to penetrate between the front and back sides. The discharged urine passes from the urine passage hole 25 to the back side of the support 26 and is received by the urine tray 13.

As shown in FIG. 1, the apparatus main body 2 includes a urine tank 51 that connects one end of the urinary tube 30, a vacuum pump 52 connected to the urine tank 51, a vacuum pump 52, a switch circuit 56, and polarity reversal. A control device 53 for controlling the circuit 57; a DC power supply device 54 for applying a voltage between the electrodes 21, 22 or 23, 24 of the excrement detection sensor 20 through electric wirings 61, 62; and an excretion detection sensor 20 an output from the detecting means 55 for detecting the (resistance), a switch circuit 56 that turns on and off the electric wires 61 and 62 to the excretion sensor 2 0 electrodes 21, 22, 23, 24, of the excrement detection sensor 2 0 And a polarity inversion circuit 57 that inverts the polarities of the electrical wirings 61 and 62 to the electrodes 21, 22, 23, and 24. Here, the DC power supply 54 is, for example, an AC adapter or a battery.

  The control device 53 is supplied with power from the DC power supply device 54 through the electric wiring 64 and controls the vacuum pump 52, the switch circuit 56, and the polarity inversion circuit 57. The control device 53 has a built-in timer.

  The control device 53 controls the vacuum pump 52 based on the detection result of the resistance value between the pair of electrodes 21 and 22 for urine detection by the detection means 55. That is, when the control device 53 detects that the electrical resistance between the electrodes 21 and 22 is short-circuited and the electrical resistance between the electrodes 21 and 22 has decreased to a predetermined value or less via the detection means 55, the control device 53 has found that urination occurred. Judgment is made and the vacuum pump 52 is started. When the controller 53 detects that the urine of the excretion receiver 1 is decreased and the electrical resistance between the electrodes 21 and 22 is increased to a predetermined value or more by the driving of the vacuum pump 52, the timer is set. While starting, the operation of the vacuum pump 52 is continued. When this timer reaches a predetermined time, the control device 52 stops the vacuum pump 52.

The control device 53 operates an alarm device (not shown) based on the detection result of the resistance value between the pair of electrodes 23 and 24 for detecting feces by the detection means 55. That is, conductive between poles 23 and 24 are short-circuited, the electrical resistance between the electrodes 23 and 24 is detected by the control device 53 via the detection means 55 that it has decreased below a predetermined value, the control unit 53 there is defecation It is judged that the alarm has occurred and the alarm device is operated to notify the alarm.

  The vacuum pump 52 is supplied with power from the DC power supply 54 through the electric wiring 63, and sucks out the urine received by the excretion receiver 1 by sucking the air in the urine tank 51 through the urine guide tube 30. Accumulate on.

  A connector 42 is provided at the ends of the electrical wires 61 and 62. This connector 42 is detachably connected to the proximal end portion of the excretion detection sensor 20. By connecting the connector 42 to the proximal end portion of the excretion detection sensor 20, the terminal portions 21a and 22a and the electrical wiring 61 are electrically connected, and the terminal portions 23a and 24a and the electrical wiring 62 are electrically connected. Connected to.

  As shown in FIG. 6, the switch circuit 56 includes a switch 56 a that turns on and off the electrical wiring 61 to the electrodes 21 and 22 and a switch 56 b that turns on and off the electrical wiring 62 to the electrodes 23 and 24. In other words, the switch circuit 56 includes a switch 56a for turning on / off the urination detection sensor and a switch 56b for turning on / off the defecation detection sensor. FIG. 6 is a diagram schematically showing an electrical system of the excretion detection sensor 20 of FIG.

  The polarity inversion circuit 57 includes a polarity inversion circuit 57a that inverts the polarity of the electric wiring 61 to the electrodes 21 and 22, and a polarity inversion circuit 57b that inverts the polarity of the electric wiring 62 to the electrodes 23 and 24. In other words, the polarity inversion circuit 57 includes a polarity inversion circuit 57a that inverts the polarity of the urination detection sensor and a polarity inversion circuit 57b that inverts the polarity of the defecation detection sensor.

  Next, the control operation of the excrement disposal apparatus 100 will be described with reference to FIGS. 1 and 6 to 8. 7 is a diagram showing a change in the state of the electrical system of the excretion detection sensor 20 in FIG. 6, and FIG. 8 is a time chart showing a voltage change corresponding to the state change in FIG.

  When there is urination from the wearer of the excrement receiver 1 and urine A adheres across the urine introduction part 28 on the electrodes 21 and 22 for urine detection, the electrodes 21 and 22 are short-circuited. The discharge of urine A is detected by the detection means 55. Based on the urination detection signal of the detection means 55, the control device 53 activates the vacuum pump 52, starts urine suction from the excretion receiver 1 through the urinary tube 30, and activates a built-in timer.

  Here, impurities contained in urine excreted from a person are attracted to the positive electrode and / or the negative electrode of the electrodes 21 and 22, and are deposited on the conductive surfaces thereof, so that the electrical continuity between the electrodes 21 and 22 is achieved. Therefore, if the polarity of the electrodes 21 and 22 is always the same, the interfering substance is continuously attracted and deposited on the + electrode and / or the − electrode during the operation of the excretion detection sensor 20. Will go.

  In other words, impurities in the urine accumulate on the conductive surface of the electrode and the sensitivity of the urine detection sensor becomes dull. Even if there is urination, it cannot be detected immediately by the urine detection sensor, but this is included in urine excreted by humans. Impurities detected include substances that are attracted to the electrodes of the excretion detection sensor and deposited on the conductive surface to prevent electrical continuity between the electrodes (for example, organic substances such as proteins and inorganic ions). Depending on the electrical polarity of these interfering materials when detecting the voltage applied to the electrode, the interfering substance having a + (positive) polarity is applied to the-electrode (negative electrode) and-(minus) polarity. The main cause is that the interfering substance having a is attracted to the positive electrode (positive electrode) and deposited.

  Therefore, in the present embodiment, the control device 52 always operates the polarity inversion circuit 57a at a predetermined interval during the operation of the excretion detection sensor 20, and reverses the polarity of the electric wiring 61 to detect the urination detection electrode 21, Control is performed so that the polarity of 22 is reversed. As a result, the interfering substance deposited on each pole is repelled by reversing the positive pole to the negative pole and the negative pole to the positive pole, or the suction force is released, so that the urinary tract tube 30 is released. It is discharged together with the urine sucked. Thus, by continuously reversing the polarity of each electrode at a predetermined interval, the conductive surfaces of the electrodes 21 and 22 are always refreshed, and the sensitivity of the excretion detection sensor 20 is stabilized and urination is reliably detected. Can urinate.

  Further, the control device 52 performs control so that a voltage is intermittently applied between the urine detection electrodes 21 and 22. Accordingly, when urine is detected by the electrodes 21 and 22 for urine detection, there is a time zone in which no voltage is periodically applied, and obstructions are discharged together with urine in a time zone in which this voltage is not applied. Therefore, the sensitivity of the excretion detection sensor 20 can be stabilized, and urination can be detected reliably and urination processing can be performed.

  In addition, the control device 52 always turns on the switch 56a and turns off the switch 56b (the state shown in FIG. 7A or 7C), and turns off and turns off the switch 56a. Control is performed so as to switch between the ON state of the switch 56b (the state of FIG. 7B or FIG. 7D). In other words, the control device 52 performs control so that the switch 56b is turned off when the switch 56a is turned on, and the switch 56b is turned on when the switch 56a is turned off.

As a result, even when the discharged urine enters both the urine introduction part 28 and the stool introduction part 29 and adheres to the urine, the urine introduction part 28 is only short-circuited in the urine detection time zones t ₁ and t ₃ . Since detection is performed, urination can be detected separately from defecation. On the contrary, even when the discharged stool enters both the stool introduction part 29 and the urine introduction part 28 and adheres across the stool, only a short circuit between the stool introduction parts 29 occurs in the stool detection time zones t ₂ and t ₄ . Since detection is performed, defecation can be detected separately from urination. Therefore, urination and defecation are erroneously detected, the vacuum pump 52 is not operated at the time of defecation, and an alarm device is not used at the time of urination, so that the excrement disposal apparatus 100 having excellent usability can be obtained.

As shown in FIG. 7 (a) → (b) → (c) → (d) and t ₁ → t ₂ → t ₃ → t ₄ in FIG. Switching between detection of urine by 22 and detection of stool by electrodes 23 and 24 for defecation, switching of polarity of electrodes 21 and 22 for detection of urine and reversal of polarity of electrodes 23 and 24 for defecation Is controlled to be performed alternately. Thereby, the sensitivity of the excretion detection sensor 20 can be further stabilized.

Here, the predetermined intervals t ₁ + t ₂ and t ₃ + t ₄ for reversing the polarities of the urine detection electrodes 21 and 22 and the defecation electrodes 23 and 24 are set to 1 second or less and 0.1 seconds or more. That is, in order to stabilize the urine detection sensitivity, it is desirable to shorten the predetermined intervals t ₁ + t ₂ and t ₃ + t _{4. In} the case of a two-line sensor for urine / stool, a time during which measurement is not possible for other systems Therefore, it is desirable to shorten the predetermined intervals t ₁ + t ₂ and t ₃ + t ₄ in order to minimize the detection delay. However, if the predetermined intervals t ₁ + t ₂ and t ₃ + t ₄ are shortened too much, a circuit for polarity inversion and detection becomes complicated and expensive. Therefore, 0.1 to 1 second is a predetermined interval t ₁ + t ₂ , It is the optimal range of t ₃ + t ₄ .

  In the present embodiment, the time zones at the predetermined intervals are all the same time, but they may be different times.

  The voltage applied between the urine detection electrodes 21 and 22 and between the defecation electrodes 23 and 24 is set within a range of 1 to 10V. If this voltage level is too low, it is easily affected by interfering substances, and by setting the voltage level to 1 V or higher, the polarities of the electrodes 21 and 22 for urine detection and the electrodes 23 and 24 for defecation are inverted at predetermined intervals. It has been found that the detection sensitivity (apparent electrical resistance) is particularly stable when it is used. However, since the excrement receiver 1 is used by being attached to a human body, it is not preferable to increase the voltage level unnecessarily. Therefore, it is optimal to set the voltage level within a range of 1 to 10 V or less.

It is a whole block diagram of the excrement disposal apparatus of one embodiment of the present invention. It is an expanded sectional view of the excretion receiver of FIG. It is a top view which divides and shows the excretion detection sensor of FIG. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is a figure which shows typically the electric system of the excretion detection sensor of FIG. It is a figure which shows the change of the state of the electric system of the excretion detection sensor of FIG. FIG. 8 is a time chart showing a voltage change corresponding to the state change of FIG. 7.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Excrete receiver, 2 ... Apparatus main body, 10 ... Receiver main body, 10a ... Part which receives urine, 10b ... Part which receives stool, 12 ... Back sheet part, 13 ... Urine tray, 14 ... Surface material part, 15 ... Surface Sheet part 16 ... Gather part 20 ... Excrement detection sensor 21, 22, 23, 24 ... Electrode, 21a, 22a, 23a, 24a ... Terminal part, 23b, 24b ... Expansion part, 25 ... Urine passage hole, 26 DESCRIPTION OF SYMBOLS ... Support body, 27 ... Cover, 28 ... Urine introduction part, 29 ... Fecal introduction part, 30 ... Urine tube, 42 ... Connector, 51 ... Urine tank, 52 ... Vacuum pump, 53 ... Control device, 54 ... DC power supply 55, detection means, 56 ... switch circuit, 57 ... polarity inversion circuit, 61-64 ... electrical wiring, 100 ... excrement disposal apparatus.

Claims (2)

A feces receiver attached to a person, and an apparatus main body to which the excretion receiver is detachably connected,
The excrement receiver includes a receiver body that receives excretion excreted from the wearer, and an excretion detection sensor that detects the excreted excretion,
The apparatus body includes a urine tank for collecting urine, a vacuum pump for sucking urine received by the receiver body into the urine tank, and a control device for controlling the vacuum pump.
The excretion detection sensor includes a urine detection sensor having a pair of urine detection electrodes for detecting urine received by the receiver body, and a pair of stool detection electrodes for detecting stool received by the receiver body. A feces urine treatment device comprising a defecation detection sensor having
The control device performs control so as to switch between detection of urine by applying a voltage to the electrode of the urination detection sensor and detection of stool by applying a voltage to the electrode of the defecation detection sensor, and excrement treating apparatus characterized by controlling so as to be added intermittently voltage between the discharge urine detection sensor electrodes. A feces receiver attached to a person, and an apparatus main body to which the excretion receiver is detachably connected,
The excrement receiver includes a receiver body that receives excretion excreted from the wearer, and an excretion detection sensor that detects the excreted excretion,
The apparatus body includes a urine tank for collecting urine, a vacuum pump for sucking urine received by the receiver body into the urine tank, and a control device for controlling the vacuum pump.
  The excretion detection sensor includes a urine detection sensor having a pair of urine detection electrodes for detecting urine received by the receiver body, and a pair of stool detection electrodes for detecting stool received by the receiver body. A feces urine treatment device comprising a defecation detection sensor having
The control device detects urine by applying a voltage to the electrode of the urination detection sensor, detects stool by adding a voltage to the electrode of the defecation detection sensor, reverses the polarity of the electrode of the urination detection sensor, Control is performed so that the polarity of the electrodes of the defecation detection sensor is repeatedly reversed, and the voltage is intermittently applied between the electrodes of the urination detection sensor.
  The excrement disposal apparatus characterized by the above-mentioned.

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