Intelligent patch for monitoring urine and excrement

Abstract

The invention discloses an intelligent patch for monitoring urine and excrement. The intelligent patch comprises an alarm and a sensing device electrically connected with the alarm, the sensing device comprises a packing material and an electrode layer coated in the packing material; the electrode layer comprises a temperature and humidity sensor pole piece, an electrochemical sensor pole piece and a photochemical sensor pole piece; the alarm comprises a temperature and humidity detection module, an electrochemical detection module and an optical detection module which are in one-to-one correspondence with the temperature and humidity sensor pole piece, the electrochemical sensor pole piece and the photochemical sensor pole piece. The intelligent patch integrates the alarm and various sensors, can monitor the conditions of urine and excrement in real time, reminds nursing personnel of timely treatment through the alarm, can monitor routine urine values in real time through the optical and electrochemical sensors, and provides detailed health information. In addition, the intelligent patch is small and exquisite in design, easy to operate and suitable for families and medical institutions to use.

Description

Technical Field

[0001] The present invention relates to the technical field of urine and feces detection devices, and in particular to an intelligent patch for monitoring urine and feces. Background Art

[0002] With the aggravation of social aging and the increasing demand for baby care, how to effectively monitor the excretion of urine and feces has become an important health management issue. Groups such as infants, disabled elderly people, and disabled persons are unable to independently perceive the excretion of urine or feces and often rely on caregivers to regularly check the status of diapers. This method is not only inefficient but may also cause the skin to come into contact with urine or feces for a long time, leading to skin problems such as diaper rash and skin infections.

[0003] Existing urine monitoring technologies mainly focus on large devices used in hospitals or professional care institutions. These devices are usually bulky, complex to operate, and expensive, and are not suitable for daily household use. In addition, most existing urine monitoring devices can only detect basic components of urine, such as pH value and glucose content, and cannot detect other components in urine. For infants and disabled elderly people, the timely cleaning of feces is equally important, but existing technologies have obvious deficiencies in this regard.

[0004] Therefore, it is necessary to design an intelligent patch for monitoring urine and feces to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to propose an intelligent patch for monitoring urine and feces in view of the deficiencies of the prior art.

[0006] The technical solution of the present invention is: an intelligent patch for monitoring urine and feces, including an alarm and a sensing device electrically connected to the alarm; the sensing device includes a packaging material and an electrode layer coated within the packaging material; the electrode layer includes a temperature and humidity sensor electrode piece, an electrochemical sensor electrode piece, and a photochemical sensor electrode piece; the alarm includes a temperature and humidity detection module, an electrochemical detection module, and an optical detection module corresponding to the temperature and humidity sensor electrode piece, the electrochemical sensor electrode piece, and the photochemical sensor electrode piece one by one.

[0007] The alarm further includes an MCU, a power supply module, a wireless transmission module, and a gas detection module; the temperature and humidity detection module, the electrochemical detection module, the optical detection module, the power supply module, the wireless transmission module, and the gas detection module are all electrically connected to the MCU.

[0008] The alarm further includes a gyroscope module electrically connected to the MCU.

[0009] The alarm further includes an acoustic and optical indication module electrically connected to the MCU.

[0010] The electrode layer is connected to the alarm through a connecting wire wrapped inside the packaging material; the connecting wire is a flexible flat cable or a conductive electrode sheet integrated with the electrode layer.

[0011] The alarm has a connection interface; the end of the packaging material is provided with a plug that matches the connection interface; the plug is electrically connected to the connecting wire.

[0012] The temperature and humidity sensor electrode sheet is formed with an electrode pattern with a thickness of 9 - 15 μm by screen printing using a temperature-sensitive paste, and is cured at 100 - 150 °C.

[0013] The electrochemical sensing electrode sheet is a multi-layer structure; the first layer is a thin film layer formed by sputtering process; the thickness of the thin film layer does not exceed 100 nm; the second layer is a metal layer prepared by low-temperature sputtering process.

[0014] The packaging material adopts a thermally formed non-woven fabric or TPU composite structure.

[0015] Adopting the above technical solutions, the present invention has the following beneficial effects: The intelligent patch of the present invention integrates an alarm and various sensors, can monitor the conditions of urine and feces in real time, and remind the nursing staff to handle them in time through the alarm. At the same time, through the optical and electrochemical sensors, it can monitor the values of routine urine tests in real time, such as color, transparency, pH, protein, glucose, ketone body, bilirubin, etc., providing detailed health information to help the nursing staff discover potential health problems in time. Moreover, the intelligent patch is small in design and simple in operation, suitable for use in families and medical institutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the content of the present invention be more clearly understood, the following further details the present invention according to specific embodiments in combination with the drawings.

[0017] Figure 1 It is a schematic structural diagram of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the electrode layer of the present invention.

[0019] Figure 3 It is a schematic distribution diagram of the electrochemical sensor electrode sheet of the present invention.

[0020] Figure 4 It is a glucose test curve graph of the present invention.

[0021] Figure 5 It is a ketone body test curve graph of the present invention.

[0022] Figure 6 It is a uric acid test curve graph of the present invention.

[0023] The reference numerals in the drawings are as follows:

[0024] Alarm 1, sensing device 2, packaging material 2-1, electrode layer 2-2, temperature and humidity sensor electrode piece 2-2-1, electrochemical sensor electrode piece 2-2-2, photochemical sensor electrode piece 2-2-3, ketone measurement area 2-2-2-1, uric acid and glucose measurement area 2-2-2-2, routine urine test area 2-2-2-3. Detailed implementation manners

[0025] Embodiment

[0026] See Figure 1 , an intelligent patch for monitoring urine and feces in this embodiment, includes an alarm 1 and a sensing device 2 electrically connected to the alarm 1; the sensing device 2 includes a packaging material 2-1 and an electrode layer 2-2 coated in the packaging material 2-1; the electrode layer 2-2 includes a temperature and humidity sensor electrode piece 2-2-1, an electrochemical sensor electrode piece 2-2-2, and a photochemical sensor electrode piece 2-2-3; the alarm 1 includes a temperature and humidity detection module, an electrochemical detection module, and an optical detection module corresponding to the temperature and humidity sensor electrode piece 2-2-1, the electrochemical sensor electrode piece 2-2-2, and the photochemical sensor electrode piece 2-2-3 one by one. The electrochemical sensor electrode piece 2-2-2 forms multiple detection areas, namely a ketone measurement area 2-2-2-1, a uric acid and glucose measurement area 2-2-2-2, and a routine urine test area 2-2-2-3. The urination situation is monitored through the change of temperature and humidity. The electrochemical sensor electrode piece 2-2-2 is used to detect various values of routine urine, such as the pH value, glucose, ketone, uric acid, bilirubin, etc. of urine. The optical detection method is used to irradiate urine with a light source, and the absorption, reflection, or scattering characteristics of different components to specific wavelength light are utilized for analysis to judge the concentration of different components in urine. Specifically, the optical sensor electrode piece emits specific wavelength light to penetrate urine, the light sensor electrode piece receives the intensity of the transmitted light, and the urine concentration is calculated through the Beer-Lambert law. The components and contents in urine are analyzed by combining the electrochemical sensor electrode piece 2-2-2 and the established standard curve library to improve the detection accuracy.

[0027] Furthermore, the alarm 1 further includes an MCU, a power supply module, a wireless transmission module, and a gas detection module; the temperature and humidity measurement module, the electrochemical detection module, the optical detection module, the power supply module, the wireless transmission module, and the gas detection module are all electrically connected to the MCU. The gas sensor determines the defecation action by detecting the concentration changes of volatile gases, such as hydrogen sulfide, trimethylamine, methyl mercaptan, etc. Preferably, the wireless transmission module adopts a Bluetooth module. Further, in order to ensure that the power supply module has sufficient power, the alarm further includes a power detection module for detecting the power of the power supply module, and the power detection module is electrically connected to the power supply module and the MCU.

[0028] Furthermore, the alarm 1 further includes a gyroscope module electrically connected to the MCU, which is used to detect the user's actions and determine whether there are actions of urine or feces excretion. The gyroscope module can detect the user's body movements. When a specific movement pattern is detected, it can be determined that there is urine or feces excretion.

[0029] Furthermore, the alarm 1 further includes an acoustic and optical indication module electrically connected to the MCU. The acoustic and optical indication module preferably uses a buzzer and an indicator light. The buzzer is used to emit a sound alarm signal to remind the caregiver to process it in time, and the buzzer module can emit sound alarms of different frequencies according to the data detected by the sensor to remind the caregiver that there is urine or feces excretion; the indicator light is used to emit a light alarm signal to remind the caregiver to process it in time; and the indicator light can emit light alarms of different colors according to the data detected by the sensor to remind the caregiver that there is urine or feces excretion.

[0030] Furthermore, the electrode layer 2-2 is connected to the alarm 1 through a connecting wire coated in the packaging material 2-1; the connecting wire is a flexible flat cable or a conductive electrode piece integrated with the electrode layer 2-2. Specifically, the conductive electrode piece forms a straight or serpentine wiring structure through physical vapor deposition (PVD) or chemical vapor deposition (CVD) technology to adapt to the folding deformation of the diaper. The flexible flat cable has the characteristics of good flexibility and resistance to bending; the conductive electrode piece integrated with the electrode layer 2-2 can reduce the length of the connecting wire, reduce the volume and weight of the patch, and ensure that it will not be damaged due to bending or pulling during the daily use of the diaper.

[0031] Furthermore, to facilitate the quick disassembly of the alarm 1 and the sensing device 2, the alarm 1 has a connection interface; the end of the packaging material 2-1 is provided with a plug that matches the connection interface; the plug is electrically connected to the connecting wire, and the connection interface uses a push-out interface or a magnetic attraction interface. During operation, the alarm 1 and the sensing device 2 patch can be quickly separated, which is convenient for replacing the contaminated patch. This can avoid cross-infection caused by patch contamination.

[0032] Furthermore, the temperature and humidity sensor electrode piece 2-2-1 is formed with an electrode pattern with a thickness of 9-15 μm by screen printing using a temperature-sensitive paste and is cured at 100-150 °C.

[0033] Furthermore, the electrochemistry sensing electrode sheet is a multi-layer structure; the first layer is a thin film layer formed by sputtering process; the thickness of the thin film layer does not exceed 100 nm; the second layer is a metal layer prepared by low-temperature sputtering process. Specifically, in the first layer, a thin film of titanium, nickel, copper, carbon, etc. with a thickness not exceeding 100 nm is sputtered using physical vapor deposition (PVD) or chemical vapor deposition (CVD) technology, and then a metal such as gold, silver, platinum, etc. is sputtered in the second layer using the same technology. During the sputtering process, the low temperature is strictly controlled. In this way, the prepared sensor electrode can better reduce the interference during the detection of different components in urine, and the electrochemical signal generated by the reaction is larger and the value is more accurate.

[0034] Furthermore, part of the packaging material is made of flexible skin-friendly materials such as non-woven fabric, cotton fiber, TPU film, hot air cotton, etc., to ensure that the patch is comfortable during use and not likely to cause skin allergies. The packaging material 2-1 part can adopt a hot pressing process to encapsulate each sensor electrode sheet and connecting wire in the packaging material 2-1 to ensure the durability of the patch.

[0035] Working principle of this embodiment: The intelligent patch of this embodiment can be attached to the inner side, outer side of the diaper, or pre-embedded in the middle sandwich position of the diaper. For the user wearing the diaper with this intelligent patch, when the user makes a urination action, the temperature and humidity sensor can immediately sense the changes in temperature and humidity and immediately transmit the data to the temperature and humidity detection module in the alarm 1. When the urine volume reaches the threshold or the gas sensor detects a defecation action, the buzzer emits a short beep and the red light flashes, and at the same time, it is transmitted to the mobile phone terminal through the wireless transmission module to inform the caregiver that a urination or defecation action has occurred.

[0036] The specific embodiments described above have further elaborated on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A smart patch for monitoring urine and feces, characterized in that: The invention comprises an alarm (1) and a sensor device (2) electrically connected to the alarm (1); the sensor device (2) comprises a packaging material (2-1) and an electrode layer (2-2) coated in the packaging material (2-1); the electrode layer (2-2) comprises a temperature and humidity sensor electrode piece (2-2-1), an electrochemical sensor electrode piece (2-2-2) and a photochemical sensor electrode piece (2-2-3); the alarm (1) comprises a temperature and humidity detection module, an electrochemical detection module and an optical detection module corresponding one-to-one to the temperature and humidity sensor electrode piece (2-2-1), the electrochemical sensor electrode piece (2-2-2) and the photochemical sensor electrode piece (2-2-3).

2. A smart patch for monitoring urine and feces according to claim 1, characterized in that: The alarm (1) further comprises an MCU, a power module, a wireless transmission module and a gas detection module; the temperature and humidity detection module, the electrochemical detection module, the optical detection module, the power module, the wireless transmission module and the gas detection module are all electrically connected to the MCU.

3. A smart patch for monitoring urine and feces according to claim 2, characterized in that: The alarm (1) also includes a gyroscope module electrically connected to the MCU.

4. The smart patch for monitoring urine and feces according to claim 2, characterized in that: The alarm (1) also includes an acousto-optic indication module electrically connected to the MCU.

5. The smart patch for monitoring urine and feces according to claim 1, characterized in that: The electrode layer (2-2) is connected to the alarm (1) via a connecting wire wrapped in a packaging material (2-1); the connecting wire is a flexible flat cable or a conductive electrode sheet that is integrated with the electrode layer (2-2).

6. The smart patch for monitoring urine and feces according to claim 5, characterized in that: The alarm (1) has a connection interface; the end of the packaging material (2-1) is provided with a plug that matches the connection interface; and the plug is electrically connected to the connection line.

7. The smart patch for monitoring urine and feces according to claim 1, characterized in that: The temperature and humidity sensor electrode (2-2-1) uses temperature-sensitive slurry to form an electrode pattern with a thickness of 9-15 um through screen printing, and is cured at 100-150°C.

8. The smart patch for monitoring urine and feces according to claim 1, characterized in that: The electrochemical sensor electrode is a multi-layer structure; the first layer is a thin film layer, and the second layer is a metal layer; the thin film layer is formed by sputtering titanium, nickel, copper or carbon using physical vapor deposition or chemical vapor deposition technology, and the thickness does not exceed 100nm; the metal layer is sputtered with gold, silver or platinum using the same process as the thin film layer, and the temperature is kept low during the sputtering process.

9. The smart patch for monitoring urine and feces according to claim 1, characterized in that: The packaging material (2-1) is made of non-woven fabric or cotton fiber or TPU film or hot air cotton formed by heat pressing.

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