Classifications

• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
  • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
  • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
  • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
  • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
  • G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
  • G01N27/07—Construction of measuring vessels; Electrodes therefor
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
  • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
  • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
  • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
  • G01N33/483—Physical analysis of biological material
  • G01N33/487—Physical analysis of biological material of liquid biological material
  • G01N33/493—Physical analysis of biological material of liquid biological material urine
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10S128/00—Surgery
  • Y10S128/912—Connections and closures for tubes delivering fluids to or from the body

Definitions

• the present invention relates to an excretion detection sensor capable of detecting urination and defecation.
• Patent Document 1 Japanese Patent Application Laid-Open No. 63-290950
• Patent Document 2 Japanese Patent Laid-Open No. 2000-19136
• Patent Document 3 Japanese Patent Laid-Open No. 2002-82080
• Patent Document 4 Japanese Patent Laid-Open No. 2004-267517
• the conventional moisture detection sensor Since the conventional moisture detection sensor has only a pair of electrodes, it is difficult to discriminate force between urination and defecation. If this conventional moisture detection sensor is used for the excretion receiver or ompu that collects urine in the above-mentioned pan, the vacuum pump will operate even in the case of defecation. Clogging makes urine collection difficult.
• the conventional moisture detection sensor generates a potential difference between the electrodes, and outputs a signal that urination or the like has occurred when moisture flows between the electrodes and current flows. Therefore, it is impossible to determine whether the electrode itself is good or bad. For this reason, moisture Although it adheres between the electrodes, a signal is not generated due to an electrode defect or the like, and urination occurs, and the presence of urine cannot be detected.
• an object of the present invention is to provide an excretion detection sensor that can solve the above-mentioned problems.
• the present invention employs the following configuration.
• At least two pairs of conducting wires (1, 2, 3, 4) extending side by side are formed of a carrier (6) and a covering (7) that are both waterproof and insulating.
• the covered body (7) or the carrier (6) is sandwiched between the urine introduction holes (8) for associating at least the pair of conductors (1, 2), and another pair of conductors.
• a stool introduction hole (9) is formed to link (3, 4)
• the urine enters the associated urine introduction hole (8)
• the pair of conductors (1, 2) is short-circuited
• An excretion detection sensor is adopted in which the other pair of conductors (3, 4) is short-circuited when entering the associated fecal introduction hole (9).
• a desired pair of conductors (1, 2) are connected to each other by a high resistance conductor (14) having a resistance value larger than those of the conductors (1, 2). Also good.
• a urine passage hole (15) penetrating in the thickness direction may be provided in the carrier (6) and the covering (7)! ,.
• the conductor (1, 2, 3, 4, 14) may be printed on the carrier (6), and the covering (7) may also be printed on the carrier (6). .
• the wires (1, 2, 3, 4, 14) may be printed with conductive ink containing conductive carbon.
• the printed ink on the conductor (1, 2, 3, 4) can contain more conductive carbon than the printing ink on the high resistance conductor (14)! /.
• the covering (7) or carrier (6) provided with the urine introduction hole (8) and the fecal introduction hole (9) is formed as a laminate of printing ink layers, and at least one of the laminates (7b) May be formed with urine resist ink.
• At least one layer (7a) interposed between the urine resist ink layer (7b) and the conductive wires (1, 2, 3, 4, 14) in the laminate may be formed of a solvent resist ink.
• the urine resist ink contains polyester polyol and isocyanate. It can be a urethane bond ink with a vanate or a uv curable resin ink, and the solvent resist ink can be a polyester resin ink.
• the conductive wires (1, 2, 3, 4, 14) may be printed with conductive ink containing only conductive carbon as a conductive substance.
• At least two pairs of conducting wires (1, 2, 3, 4) 1S extending side by side are provided between the waterproofing and insulating carrier (6) and the covering (7).
• the covered body (7) or carrier (6) is formed with a urine introduction hole (8) for associating at least a pair of conductors (1, 2), and another pair of conductors (3, 4)
• a stool introduction hole (9) is formed, and when the urine enters the associated urine introduction hole (8), the pair of conductors (1, 2) are short-circuited, and the stool is associated with the stool.
• a vacuum pump or other suction device such as a vacuum pump for collecting urine can be used in the tube (18) even when it is used in an excretion receiver (17) or Omutsu that collects urine in a tray (16). Clogging by stool can be prevented and urine collection can be repeated.
• the covering (7) or the carrier (6) provided with the urine introduction hole (8) and the fecal introduction hole (9) is formed as a laminate of the printing ink layer. If at least one of the layers (7b) is made of urine resist ink, the resistance of the conductor (1, 2, 3, 4, 14) will change even if urination is detected multiple times. do not do. Therefore, it is possible to accurately detect the occurrence of urination repeatedly.
• FIG. 1 is a surface view of an excrement detection sensor according to Embodiment 1 of the present invention.
• FIG. 2 is a rear view of the excretion detection sensor.
• FIG. 3 is a plan view of a circuit unit.
• FIG. 4 is a cross-sectional view taken along line IV-IV in FIG.
• FIG. 5 is a cross-sectional view taken along line V-V in FIG.
• FIG. 6 is a plan view of a circuit unit of the excretion detection sensor according to Embodiment 2 of the present invention.
• FIG. 7 is a plan view of a circuit unit of an excretion detection sensor according to Embodiment 3 of the present invention.
• FIG. 8 is a cross-sectional view similar to FIG. 4 of an excretion detection sensor according to Embodiment 4 of the present invention.
• FIG. 9 is a cross-sectional view similar to FIG. 5 of the excrement detection sensor according to Embodiment 4 of the present invention.
• FIG. 10 is a conceptual diagram showing a usage example of the excrement detection sensor according to the present invention.
• the excrement detection sensor 5 has two pairs of conductive wires 1, 2, 3, and 4 extending side by side with a carrier 6 and a cover 7 that are both waterproof and insulating.
• a urine introduction hole 8 for associating at least a pair of conductors 1 and 2 is formed in the covering 7 and a stool introduction hole 9 for associating another pair of conductors 3 and 4 is formed in the covering 7.
• the carrier 6 carries the entire excrement detection sensor 5 and is formed as a flexible strip.
• the carrier 6 is formed, for example, slightly longer than the crotch of the human body.
• the carrier 6 is waterproof so as not to allow moisture to pass through and has insulating properties so as not to pass electricity. Moreover, in order to make it easy to confirm the quality of the circuit parts such as the conductive wires 1, 2, 3, 4, etc., it is preferably formed transparently.
• the support 6 is made of a biaxially stretched film such as polypropylene, polyethylene, polyvinyl chloride, polyester, polyamide, polyimide, polyamideimide, polycarbonate, polystyrene.
• the thickness of the carrier 6 is preferably 30 ⁇ m to 300 ⁇ m, more preferably 50 ⁇ m to 100 / zm.
• the support may be opaque, but is preferably formed to be transparent or translucent.
• a positioning hole 12 for connecting to the connector 11 shown in FIG. 10 is formed at the base end of the carrier 6 as required. Further, a notch 13 and a mark 30 for restricting or clearly showing the positional relationship between the excrement detection sensor 5 and the connector 11 are provided as necessary.
• the two pairs of conducting wires 1, 2, 3, 4 have a relatively low resistance, and each extend in parallel along both side edges of the belt-like piece that is the carrier 6.
• the inner pair of wires 1 and 2 are used for urination detection
• the outer pair of wires 3 and 4 are used for defecation detection.
• Terminal portions la, 2a, 3a, and 4a having relatively large areas are formed at the base ends connecting the connectors 11 in the two pairs of conducting wires 1, 2, 3, and 4, respectively.
• extension portions 3b and 4b are formed at the ends of the conductors 3 and 4 for defecation detection on the side opposite to the base end connecting the connector 11.
• the extended portions 3b and 4b which are the ends of the stool detection lead wires 3 and 4, are provided at the end of the carrier 6.
• the urination detection lead wires 1 and 2 are extended to the stool detection lead wires 3 and 4. It ends at a point closer to the base side than parts 3b and 4b. That is, the ends of the lead wires 1 and 2 for detecting urination and the vicinity thereof, and the expanded portions 3b and 4b of the lead wires 3 and 4 for detecting defecation correspond to the urination portion and the defecation portion of the human body, respectively.
• the conductive wires 1, 2, 3, 4 are formed by printing on the carrier 6 using conductive ink including the terminal portions la, 2a, 3a, 4a and the extended portions 3b, 4b.
• the conductive ink is made by kneading a binder, conductive metal powder, and other fillers.
• a binder a polyvinyl chloride resin, a polyacrylic resin, an epoxy resin, Polyester-based resin, polyacryl urethane-based resin, polyolefin-based resin, polyurethane-based resin, phenol-based resin, etc. can be used.
• Silver, gold, copper, nickel, aluminum, conductive carbon, etc. can be used as the conductive metal powder.
• the filler includes a viscosity modifier, a dispersant and the like.
• Conductive ink kink Conductive wires 1, 2, 3, 4 are formed by applying a thin strip on the support 6 by screen printing, direct gravure printing, flexographic printing, or the like.
• the urination detection conductors 1 and 2 are printed so as to have, for example, a width of 1.5 mm, a thickness of 10 / ⁇ ⁇ , and preferably 5 m to 30 m.
• the conductors 3 and 4 for detecting defecation are IJI printed so as to have a width of 0.5 mm and a thickness of 10 m, preferably 5 to 30 m.
• These conductors 1, 2, 3, 4 are The resistance is relatively low, and the resistance value is preferably set to 0 to 200 kQ, more preferably less than lOOk Q, for example, by adjusting the content of the conductive metal powder in the conductive ink. In the first embodiment, it is about 100 k ⁇ .
• the pair of conductors 1 and 2 for detecting urination are connected by a high resistance conductor 14 having a resistance value larger than those of the conductors 1 and 2.
• the resistance value of the high-resistance conductive wire 14 is preferably set to 1 ⁇ to: ⁇ , more preferably 2 ⁇ to 6 ⁇ .
• the high resistance conductive wire 14 is provided so as to extend along the inside of the conductive wires 1 and 2.
• the high resistance lead wire 14 extends from the terminal end of one lead wire 1 to the base end side along the lead wire 1 and is directed to the other lead wire 2 along the lead wire 2, along the lead wire 2. Extends to the end.
• the high resistance conductor 14 and the pair of conductors 1 and 2 are connected as a single electric wire on the carrier 6, and a potential difference is formed between the terminal portions la and 2a of the pair of conductors 1 and 2. A certain amount of current flows.
• the high-resistance conductive wire 14 is printed by the same printing method with a conductive ink having the same composition as the conductive ink used for printing the pair of conductive wires 1 and 2.
• the amount of the conductive metal powder contained in the conductive ink is small, and as a result, the resistance value of the high-resistance conductive wire 14 is larger than that of the pair of conductive wires 1 and 2, and is set to, for example, about several ⁇ .
• the conductors 1 and 2 are formed to be thinner than, for example, a width of about 0.5 mm.
• the covering 7 is formed on the conductors 1, 2, 3, 4 and the high-resistance conductor 14 except for the terminal portions la, 2a, 3a, 4a and various introduction holes 8, 9 described later, Laminated on substantially the entire surface of the carrier 6.
• the covering 7 insulates the conductors 1, 2, 3, 4, the high resistance conductor 14, and the extended portions 3b, 4b from the outside together with the carrier 6.
• the covering 7 is formed of printing ink.
• Printing ink is made by kneading a binder, pigment, and other fillers.
• a binder polysalt vinyl resin, polyacrylic resin, epoxy resin, polyester resin are used. Fats, polyacryl urethane resin, polyolefin resin, polyurethane resin, phenol resin and the like can be used.
• the binder a polyester polyol-isocyanate bonded with urethane or a UV curable resin can be used.
• pigments include carrier 6 and lead
• white pigments of different colors are used in order to easily distinguish them from the wires 1, 2, 3, 4 and the high-resistance lead wire 14.
• the filler includes a viscosity modifier, a dispersant and the like. With this printing ink color printing, direct gravure printing, etc., the upper part of the conductor 1, 2, 3, 4 etc. is also left on the surface of the carrier 6 so that the predetermined parts such as the terminal parts la, 2a, 3a, 4a etc. are left.
• the coated body 7 is formed by application. This covering 7 functions as an insulating film and a waterproof film.
• the covering 7 is formed with a urine introduction hole 8 through which a pair of conductors 1 and 2 for urination detection are locally exposed to introduce urine.
• Two urine introduction holes 8 are provided symmetrically with the longitudinal center line of the carrier 6 as the symmetry axis at the ends of the urination detection conductors 1 and 2 and in the vicinity thereof. Of course, a smaller number may be used, or a larger number may be used.
• the position of the urine introduction hole 8 corresponds to the urination part of the human body and its periphery. As shown in FIG. 4, when urine A adheres so as to straddle the urine introduction hole 8 on each conductor 1, 2, current flows between conductors 1, 2. This current value is larger than the current value when there is no short circuit, thereby detecting the discharge of urine A.
• the covering 7 is formed with a fecal introduction hole 9 through which a pair of conductors 3 and 4 for defecation detection are locally exposed to introduce feces.
• the stool introduction holes 9 are provided one by one in the left-right symmetry with the longitudinal center line of the carrier 6 as the axis of symmetry in the expanded portions 3b, 4b of the conductors 3, 4 for defecation detection. Of course, a larger number may be provided.
• the position of the fecal introduction hole 9 corresponds to the defecation part of the human body and its surroundings. As shown in Fig. 5, when stool B adheres in a soft stool so as to straddle the stool introduction hole 9 on each conductor 3, 4, the current will flow between the pair of conductors 3, 4 with a short circuit. . As a result, adhesion of stool B is detected.
• the urine introduction hole 8 and the stool introduction hole 9 are simultaneously printed as a non-image area when the covering 7 is printed.
• the covering 7 is formed by printing, the urine introduction hole 8 and the stool introduction hole 9 can be formed small and with high accuracy.
• these holes 8 and 9 are rectangular, but can be appropriately changed to other shapes such as a circle, an ellipse, and a square.
• the carrier 6 is formed with a urine passage hole 15 so as to penetrate between the front and back sides.
• the urine passage hole 15 is drilled at a location sandwiched between portions of the carrier 6 that extend in parallel with the high-resistance conducting wire 14.
• two rectangular urine passage holes 15 are provided side by side in the longitudinal direction of the carrier 6 while leaving the connecting portion 6a.
• the urine passage hole 15 has many small holes It is also possible to perforate in other shapes and forms such as formed by an assembly. As a result, the urine discharged from the human body passes through the urine passage hole 15 to the back side of the carrier 6 and is received by the tray 16 described later.
• the urine passage hole 15 is formed, for example, by punching after printing the conductors 1, 2, 3, 4, the covering 7 and the like.
• the conductors 1, 2, 3, 4, the high-resistance conductor 14 and the cover 7 of the excrement detection sensor 5 are printed on the carrier 6 made of a transparent film with different colors of ink, the conductors 1, 2 , 3 and 4 and the presence or absence of the covering 7 are immediately recognized by visual observation, and the screening of the excretion detection sensor 5 is simplified.
• the excrement detection sensor 5 is used in a state of being sandwiched between various laminated sheets such as a nonwoven fabric in a pad-like excrement receiver 17.
• reference numeral 17a indicates a part for receiving urine in the excretion receiver 17
• reference numeral 17b indicates a part for receiving stool.
• the urine introduction hole 8 of the excretion detection sensor 5 is set immediately below the portion 17a that receives urine
• the stool introduction hole 9 of the excretion detection sensor 5 is set directly below the portion 17b that receives stool.
• a urine tray 16 is provided below the excretion detection sensor 5 in the portion 17a for receiving urine in the excretion receiver 17.
• the tray 16 is connected to a suction machine 19 such as a vacuum pump through a tube 18, and urine in the tray 16 is sent into the tank 20 by the suction machine 19.
• a bag portion 21 is formed as a means for dividing the urine receiving portion 17a and the stool receiving portion 17b.
• the bag portion 21 is formed by covering a sheet made of non-woven fabric or the like over the second half of the urine receiving portion 17a from the stool receiving portion 17b and heat-sealing it on the seal line 21a. The presence of the bag 21 prevents urine from flowing into the stool receiving part 17b, and the stool is prevented from moving to the urine receiving part 17a.
• the excrement receiver 17 is detachably attached to an urine (not shown), and is applied to the crotch of the human body via the urine.
• a connector 11 electrically connected to the control device 22 is detachably connected to the base end of the excrement detection sensor 5. Using the positioning hole 12 and the notch 13 at the base end of the excrement detection sensor 5, the connector 11 is accurately aligned with the excretion detection sensor 5, and the connector 11 side The terminal portions la, 2a, 3a, 4a of the excrement detection sensor 5 are electrically connected to the terminal portions not shown.
• the control device 22 is configured to output various types of signals by processing with a CPU, not shown in the figure, from the excrement detection sensor 5.
• the control device 22 applies a voltage between the terminal portions la and 2a of the pair of conductors 1 and 2, and when a certain amount of current flows through the conductors 1 and 2 through the high resistance conductor 14, the conductors 1 and 2 Is judged to be normal without disconnection. If a certain amount of current does not flow between conductors 1 and 2, it is determined that the wire is broken and an alarm to that effect is issued.
• the urine When the person wearing the urine drains urine, the urine soaks into the urine receiving portion 17a of the excretion receiver 17, and further penetrates into the excretion detection sensor 5 side, as shown in FIG. It contacts the surface of the excrement detection sensor 5 and enters the urine introduction hole 8 to short-circuit the pair of conductors 1 and 2. As a result, a signal indicating the occurrence of urination is sent from the excretion detection sensor 5 to the control device 22, and the control device 22 receives this signal and activates the suction device 19 and activates an alarm device (not shown) if necessary. . The urine passes through the urine passage hole 15 of the excretion detection sensor 5 and is received by the tray 16 and is sent from there to the tank 20 by the suction device 19.
• the high-resistance conductive wire 25 in the circuit portion of the excrement detection sensor 23 is formed shorter than in the first embodiment. That is, the high resistance conductive wire 25 extends from the end of one of the conductive wires 1 to the proximal end along the conductive wire 1 and passes through the connecting portion 6a between the urine passage holes 15 and 15 of the carrier 6 along the way. The other conductor 2 is directed to reach the end along this conductor 2.
• the high-resistance conductive wire 27 connecting the urine detection conductive wires 1 and 2 of the excretion detection sensor 26 is formed even shorter than in the second embodiment.
• the ends of the two conductors 1 and 2 extend linearly in the width direction of the carrier 6.
• a high resistance conductive wire 28 is also provided between the stool detection conductive wires 3 and 4.
• the high resistance conductor 28 connects the extended portions 3b and 4b of the conductors 3 and 4 in a straight line.
• a voltage can be applied between the terminal portions 3a and 4a to the pair of conductors 3 and 4 for detecting feces, and a current can be passed through the conductors 3 and 4 via the high resistance conductor 28.
• the stool detection conductors 3 and 4 are normal with no disconnection, otherwise they can be replaced with normal products in advance as defective.
• the covering 7 provided with the urine introduction hole 8 and the fecal introduction hole 9 is formed as a laminate of printing ink layers. .
• the covering 7 is composed of three layers of printing ink layers 7a, 7b and 7c, and the conductors 1, 2, 3, 4 and 14 of the high resistance conductor 14 already printed on the surface of the carrier 6. From the top, the first solvent resist ink layer 7a is printed, the upper force urine resist ink layer 7b is printed, and further the second solvent resist ink layer 7c is printed.
• the urine introduction hole 8 and the stool introduction hole 9 are simultaneously formed as non-image areas when the layers 7a, 7b and 7c are printed.
• the solvent resist ink an ink of polyester resin is used.
• a urethane-bonded ink of polyester polyol and isocyanate or a UV curable resin ink is used.
• the excrement detection sensor 29 When the excrement detection sensor 29 is attached to the excrement receiver 17 or Omumu, the conductors 1, 2, 3, 4 and the high resistance conductor 14 are covered with the covering 7 composed of the multilayer printing ink layers 7a, 7b, 7c. Urine is prevented from penetrating into the conductors 1, 2, 3, 4 and the high resistance conductor 14 by the intermediate urine resist ink layer 7b. 4 and the resistance value of the high resistance conductor 14 is prevented from changing. As a result, urination is repeated multiple times. Therefore, the excretion receiver 17 and Omutsu can be used for multiple urinations.
• the penetration of the components such as the solvent contained in the urine resist ink layer 7b into the circuit portion is blocked by the first solvent resist ink layer 7a, and the penetration to the side opposite to the circuit portion is prevented from entering the second solvent resist ink layer. Blocked by 7c.
• various conductive wires 1, 2, 3, 4, and 14 force are conductive materials containing only conductive carbon as a conductive material. Printed with ink. As a result, the lead wires 1, 2, 3, 4, and 14 are more resistant to urine components, and fluctuations in resistance value are suppressed. As a result, according to this excrement sensor, it is possible to detect urination repeatedly and properly when it is used omutto.
• the present invention is not limited to the above-described embodiments.
• the urine introduction hole and the stool introduction hole are provided in the covering.
• it can also be provided on the carrier.
• the covering is provided as a printing ink layer, it is also possible to form the covering with a film similar to the carrier.

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• 2006
  • 2006-06-29 JP JP2006180320A patent/JP5027455B2/ja not_active Expired - Fee Related
  • 2006-07-18 KR KR1020087025275A patent/KR20090031849A/ko not_active Ceased
  • 2006-07-18 WO PCT/JP2006/314152 patent/WO2008001475A1/ja not_active Ceased
  • 2006-07-18 EP EP06796293.6A patent/EP2034299B1/en not_active Not-in-force
  • 2006-07-18 CN CN2006800547500A patent/CN101449154B/zh not_active Expired - Fee Related
  • 2006-07-18 US US12/308,912 patent/US8115643B2/en not_active Expired - Fee Related
  • 2006-12-14 TW TW095146799A patent/TWI405561B/zh not_active IP Right Cessation

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