A medical infusion flow monitoring and alarming system based on a mobile phone client

Abstract

The present invention relates to an alarm system in the technical field of medical devices, specifically referring to a medical infusion flow monitoring and alarm system based on a mobile phone client. The monitoring and alarm system includes an infusion device, as well as an infusion measurement and control device, a wearable signal feedback device, a nurse-end handheld device, a control computer, and a server that are connected through wireless data transmission to form an information interaction network. The infusion measurement and control device sends the collected liquid medicine pulse signal to the control computer, and the control computer sends the liquid medicine pulse signal to the signal feedback device and the nurse-end handheld device respectively, and sends a somatosensory feedback signal matching the liquid medicine pulse signal to the signal feedback device, and the signal feedback device makes a somatosensory feedback action matching the somatosensory feedback signal. The present invention strengthens the monitoring process during infusion, enables more timely information transmission between medical staff and patients, makes medical management more effective and intelligent, and is conducive to improving the quality of medical infusion nursing work.

Description

Technical Field

[0001] The present invention relates to an alarm system in the technical field of medical devices, specifically referring to a medical infusion flow monitoring and alarm system based on a mobile phone client. Background Art

[0002] Infusion (intravenous injection) treatment is the most commonly used treatment method in hospitals. When a patient undergoes infusion treatment, the drip rate of the liquid medicine is adjusted through an infusion regulator, and continuously and stably drops from the infusion bottle / bag into the Murphy's dropper through the upper infusion hose, and then enters the patient's vein through the lower infusion hose and the needle. After the current infusion is completed, the next operation needs to be carried out, such as removing the needle or replacing the liquid medicine to continue the infusion. If the needle is not removed or the liquid medicine is not replaced in time, blood reflux will occur, and even medical accidents may be caused. Currently, when the next operation needs to be carried out after the infusion is completed, generally the patient or the guardian notifies the nurse station by shouting or using a call bell. During the infusion process, the patient or the guardian / medical staff needs to frequently pay attention to the infusion progress. However, manual monitoring is inevitably negligent and error-prone, and it is easy to get tired due to high mental stress, which not only increases the burden on the patient but also increases the workload of the guardian / medical staff.

[0003] With the development and application of microelectronics and information technology, medical monitoring devices are also developing towards electronic informatization. Researchers have conducted a large number of studies on how to achieve intelligent infusion detection. The existing solutions currently include:

[0004] (1) Mechanical infusion detection based on weight measurement; however, its measurement error is large, reliability is low, and practicality is poor;

[0005] (2) Capacitive liquid level monitoring composed of two electrode plates fixed on both sides of the infusion bottle body; however, due to the different volumes of infusion bottles and the fact that infusion bags are used in many cases, the practicality of capacitive liquid level monitoring is not high;

[0006] (3) Electrode type drip rate monitoring by inserting two electrode needles into the Murphy's dropper; the electrodes in the electrode type monitoring need to be in direct contact with the liquid in the bottle, increasing the risk of infection for the patient, and it is a disposable device with a relatively high usage cost;

[0007] (4) Non-contact optoelectronic infusion monitoring using lasers, ultrasounds or infrared tubes; the principle is to monitor the state of the liquid in the Murphy's dropper of the infusion set through the emitter and receiver of an optoelectronic pair. When a liquid drop drips from the Murphy's dropper, the intensity of the light received by the receiver of the optoelectronic pair will decrease, thereby realizing real-time monitoring of the infusion state. Summary of the Invention

[0008] To solve the above problems, the present invention aims to disclose an alarm system in the technical field of medical devices, specifically referring to a medical infusion flow monitoring and alarm system based on a mobile phone client.

[0009] To achieve the above object, the technical solution adopted by the present invention is: a medical infusion flow monitoring and alarm system based on a mobile phone client, including an infusion device, where the infusion device includes an infusion bottle, an upper infusion hose, a Murphy's dropper, and a lower infusion hose that are connected in sequence from top to bottom and communicate with each other; the monitoring and alarm system includes an infusion measurement and control device, a wearable signal feedback device, a nurse's handheld device, a control computer, and a server; the control computer is connected to the infusion measurement and control device, the signal feedback device, and the nurse's handheld device through wireless data transmission to form an information interaction network;

[0010] The infusion measurement and control device includes a single-chip microcomputer, and a liquid level detection element, a drip speed detection element, an infusion flow control component, a power detection element, a communication component I, a positioning element, a radio frequency induction element, a power supply I, and a touch display screen that are electrically connected to the single-chip microcomputer respectively; the infusion measurement and control device establishes a first communication link with the control computer through the communication component I, and the infusion measurement and control device sends the liquid medicine pulse signal collected by the liquid level detection element and the drip speed detection element and the power signal of the power supply I collected by the power detection element to the control computer through the first communication link;

[0011] The signal feedback device includes a controller, and a vibration element, a heart rate detection element, an alarm, a call button, a communication component II, a radio frequency identification tag, and a power supply II that are electrically connected to the controller; the signal feedback device pairs with the radio frequency induction element of the infusion measurement and control device through the radio frequency identification tag to establish a short-range radio communication link, and each pair of radio frequency identification tags and radio frequency induction elements has a unique electronic code set for pairing; the signal feedback device triggers the communication component II to establish a second communication link with the control computer and a third communication link with the nurse's handheld device through the electronic code, and the control computer establishes a fourth communication link with the nurse's handheld device;

[0012] The control computer sends the liquid medicine pulse signal to the signal feedback device and the nurse's handheld device respectively through the second communication link and the fourth communication link, and sends a somatosensory feedback signal matching the liquid medicine pulse signal to the signal feedback device through the second communication link, and the controller triggers the vibration element to make a somatosensory feedback action matching the somatosensory feedback signal;

[0013] The heart rate detection element is connected to the alarm through a control circuit, and the alarm sends a flow control signal to the infusion flow control component of the infusion measurement and control device through the controller;

[0014] The call button triggers the third communication link and sends a request signal to the nurse's handheld device, and the nurse's handheld device sends a response signal to the signal feedback device through the third communication link.

[0015] Preferably, the liquid level detection element is arranged at the lower bottleneck of the infusion bottle, the dripping rate detection element is arranged around the Murphy's dropper, and the infusion flow control component is sleeved on the lower infusion hose.

[0016] Preferably, the communication component I and the communication component II are both wireless communication components, using one of WIFI, Bluetooth, and ZigBee; the positioning element is a GPS locator.

[0017] Preferably, the signal feedback device is a wearable RFID bracelet.

[0018] Preferably, a printed layer is provided on the outer surface of the RFID wristband.

[0019] Preferably, the liquid level detection element is a photoelectric sensor, including a phototransistor and an infrared diode, and the phototransistor and the infrared diode are vertically arranged on two opposite outer walls of the bottleneck at the lower side of the infusion bottle.

[0020] Preferably, the dripping rate detection element is an inductive sensor, and its coil is wrapped around the outer circumference of the Murphy's dropper.

[0021] Preferably, the infusion flow control assembly comprises a housing, a stepper motor and an eccentric wheel arranged in the housing, the stepper motor is transmission-connected to the eccentric wheel, and the lower infusion hose passes through the housing and passes from one side of the eccentric wheel.

[0022] Preferably, power supply I of the infusion measurement and control equipment is used to provide working power for the single-chip microcomputer, touch display screen, communication component I, positioning element, power detection element, liquid level detection element, drip rate detection element, infusion flow control component and radio frequency sensing element, and power supply I is driven by switching element I; power supply II of the signal feedback device is used to provide working power for the controller, vibration element, heart rhythm detection element, alarm, call button, communication component II and radio frequency identification tag, and power supply II is driven by switching element II.

[0023] The beneficial effects of the present invention are embodied in: The present invention is equipped with an infusion measurement and control device, a wearable signal feedback device, a display terminal of a nurse's handheld device, a control computer, and a server, making medical management more effective and intelligent, strengthening the monitoring process during infusion, enabling more timely information transmission between medical staff and patients, reducing the nursing workload, improving the work efficiency of medical staff, facilitating a positive interaction between doctors and patients, and thus comprehensively improving the quality of medical infusion care; manually inputting the infusion volume through the touch display screen of the infusion measurement and control device, detecting the drip rate of the liquid medicine through a drip rate detection element, detecting the liquid level height through a liquid level detection element, and transmitting the collected data to the control computer. With the support of the information database data of the control computer and the server, the expected remaining infusion time is calculated; according to the expected remaining infusion time, the control computer sends a somatosensory feedback signal to the signal feedback device, and the controller triggers the vibration element to make a somatosensory feedback action matching the somatosensory feedback signal to convey information to the patient and give a reminder; at the same time, detecting the abnormal heart rhythm condition of the patient through the heart rhythm detection element of the signal feedback device. When an abnormal heart rhythm is detected, the alarm device is activated and a flow control signal is sent to the infusion measurement and control device. The infusion measurement and control device receives the flow control signal from the signal feedback device, and thus controls the infusion speed or stops the infusion through the infusion flow control component to avoid possible harm to the patient caused by continued infusion; the present invention uses the control computer and the server to record and store information, ensuring the integrity of information recording and facilitating statistics and access. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the working structure block diagram of the monitoring and alarm system of the present invention.

[0025] Figure 2 It is the structural schematic diagram of the infusion measurement and control device of the present invention.

[0026] Figure 3 It is the structural schematic diagram of the signal feedback device of the present invention.

[0027] Explanation of the reference numerals in the drawings:

[0028] 1 - infusion device, 2 - infusion measurement and control device, 3 - signal feedback device, 4 - nurse's handheld device, 5 - control computer, 6 - server, 11 - infusion bottle, 12 - upper infusion hose, 13 - Murphy's dropper, 14 - lower infusion hose, 21 - single-chip microcomputer, 22 - liquid level detection element, 23 - drip rate detection element, 24 - infusion flow control component, 25 - power detection element, 26 - communication component I, 27 - positioning element, 28 - radio frequency induction element, 29 - touch display screen, 31 - controller, 32 - vibration element, 33 - heart rhythm detection element, 34 - alarm, 35 - call button, 36 - communication component II, 37 - radio frequency identification tag, 38 - printing layer. DETAILED DESCRIPTION OF THE INVENTION

[0029] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings:

[0030] The present invention provides a medical infusion flow monitoring and alarming system based on a mobile phone client. The monitoring and alarming system includes an infusion device 1, an infusion measurement and control device 2, a wearable signal feedback device 3, a nurse's handheld device 4, a control computer 5, and a server 6. The control computer 5 is connected to the infusion measurement and control device 2, the signal feedback device 3, and the nurse's handheld device 4 through wireless data transmission to form an information interaction network. Among them, the nurse's handheld device 4 is a mobile phone client;

[0031] The infusion device 1 includes an infusion bottle 11, an upper infusion hose 12, a Murphy's dropper 13, and a lower infusion hose 14 that are sequentially connected and communicated from top to bottom;

[0032] The infusion measurement and control device 2 includes a single-chip microcomputer 21, and a liquid level detection element 22, a dripping rate detection element 23, an infusion flow control component 24, a power detection element 25, a communication component I 26, a positioning element 27, a radio frequency sensing element 28, a power supply I and a touch display screen 29, which are electrically connected to the single-chip microcomputer 21 respectively; the infusion measurement and control device 2 establishes a first communication link with the control computer 5 through the communication component I 26, and the infusion measurement and control device 2 sends the liquid pulse signal collected by the liquid level detection element 22 and the dripping rate detection element 23 and the pulse signal collected by the power detection element to the control computer 5 through the first communication link. The electrical quantity signal of the power source I collected by the element 25; wherein, the liquid medicine pulse signal is the liquid level detected by the liquid level detection element 22 and the liquid medicine dripping speed detected by the dripping speed detection element 23; specifically, the liquid level detection element 22 is a photoelectric sensor arranged at the lower bottleneck of the infusion bottle 11 for detecting the liquid level, including a phototransistor and an infrared diode, the phototransistor and the infrared diode are vertically arranged on the two opposite outer walls of the lower bottleneck of the infusion bottle 11, the infrared diode emits a parallel light beam through the infusion bottle 11 to reach the photosensitive surface of the phototransistor, when there is liquid medicine in the infusion bottle 11, the parallel light The light projected onto the phototransistor by the divergent beam will be weakened, thereby reducing the photocurrent generated by the phototransistor. When there is no liquid medicine, the illumination of the parallel light beam received by the phototransistor is the largest, thereby maximizing the photocurrent generated by the phototransistor. Therefore, when the liquid level of the liquid medicine is lower than the infrared diode, the phototransistor emits the maximum photocurrent state and feeds back to the control computer 5; the dripping speed detection element 23 is an inductive sensor arranged around the Murphy's dropper 13 to detect the dripping speed of the liquid medicine. The coil is wrapped around the outer periphery of the Murphy's dropper 13. When the liquid medicine drips, the LC oscillation circuit changes the The frequency value is obtained, and a TTL level signal is obtained after the frequency / voltage conversion circuit and voltage comparison, thereby obtaining the dripping speed of the medicine liquid; the infusion flow control component 24 is mounted on the lower infusion hose 14 to control the infusion speed or stop / block the infusion of the infusion pipeline. The infusion flow control component 24 includes a shell, a stepper motor and an eccentric wheel arranged in the shell. The stepper motor is connected to the eccentric wheel in a transmission manner. The lower infusion hose 14 passes through the shell and passes through one side of the eccentric wheel. When the stepper motor receives a signal, it drives the eccentric wheel to compress or loosen the lower infusion hose 14, thereby achieving the purpose of controlling the infusion speed or stopping / blocking the infusion;

[0033] Furthermore, the touch display screen 29 includes an input module. Medical staff set the total amount of liquid medicine (manually input) through the touch display screen 29, detect the liquid medicine dropping speed through the dropping speed detection element 23, and detect the liquid level height through the liquid level detection element 22. The single-chip microcomputer 21 transmits the information such as the total amount of liquid medicine, the liquid medicine dropping speed, and the liquid level height received to the control computer 5. With the support of the information database data of the control computer 5 and the server 6, the expected remaining infusion time is calculated; this monitoring and alarm system uses the number of liquid medicine drops detected in the previous 1 minute as the reference value of the liquid medicine dropping speed. Every once in a while, similar dropping speed detections are carried out, and the remaining infusion time is recalculated. If no liquid drops fall within 5S and the liquid level height detected by the liquid level detection element 22 is 0, it can be determined that the infusion is completed. If it is not processed within 30S, the stepping motor is driven to block the infusion pipeline to avoid blood backflow; the single-chip microcomputer 21 is preferably the STC89C52RC single-chip microcomputer 21;

[0034] The signal feedback device 3 includes a controller 31, and a vibration element 32, a heart rate detection element 33, an alarm 34, a call button 35, a communication component II 36, a radio frequency identification tag 37 and a power supply II that are electrically connected to the controller 31; the signal feedback device 3 pairs with the radio frequency induction element 28 of the infusion measurement and control device 2 through the radio frequency identification tag 37 to establish a short-range radio communication link. Each pair of radio frequency identification tags 37 and radio frequency induction elements 28 has a unique electronic code set for pairing; the signal feedback device 3 triggers the communication component II 36 to establish a second communication link with the control computer 5 and a third communication link with the nurse-end handheld device 4 through the electronic code. The control computer 5 and the nurse-end handheld device 4 establish a fourth communication link;

[0035] The signal feedback device 3 is a wearable RFID bracelet. Among them, the controller 31, the vibration element 32, the heart rate detection element 33, the alarm 34, the communication component II 36 and the radio frequency identification tag 37 are all arranged inside the RFID bracelet. The call button 35 is arranged on the outer surface of the RFID bracelet. A printing layer 38 is arranged on the outer surface of the RFID bracelet. The printing layer 38 is a sublimation transfer two-dimensional code or bar code image;

[0036] The control computer 5 sends a liquid medicine pulse signal and / or the calculated remaining infusion time to the signal feedback device 3 and the nurse's handheld device 4 respectively through the second communication link and the fourth communication link, and sends a somatosensory feedback signal matching the liquid medicine pulse signal to the signal feedback device 3 through the second communication link. The controller 31 triggers the vibration element 32 to perform a somatosensory feedback action matching the somatosensory feedback signal. The patient can obtain the remaining infusion time by scanning the QR code / barcode on the signal feedback device 3 (RFID bracelet) with a personal mobile phone, or take a photo of the QR code / barcode and send it to the family member. The family member can also know the remaining infusion time by scanning the QR code / barcode with a personal mobile phone.

[0037] Both the communication component Ⅰ26 and the communication component Ⅱ36 are wireless communication components, and one of WIFI, Bluetooth, and ZigBee is adopted. The positioning element 27 is a GPS locator.

[0038] The heart rate detection element 33 is connected to the alarm 34 through a control circuit. The alarm 34 sends a flow control signal / alarm signal to the infusion flow control component 24 of the infusion measurement and control device 2 through the controller 31. The heart rate abnormality of the patient is detected through the heart rate detection element 33. If the patient is allergic to the liquid medicine or the liquid medicine type is incorrect, it will cause harm to the patient's body, resulting in abnormal heart rate of the patient. When the heart rate detection element 33 detects an abnormal heart rate, the alarm device is started and a flow control signal is sent to the infusion measurement and control device 2. The infusion measurement and control device 2 receives the flow control signal from the signal feedback device 3, and thus controls the infusion speed or stops the infusion through the infusion flow control component 24 to avoid the possible harm to the patient caused by continuous infusion. In this embodiment, the alarm 34 is preferably a sound alarm 34. The sound alarm 34 can alert medical staff and patients so that medical staff and patients can respond in time, and at the same time can also remind nearby people. When the patient cannot stay awake and the medical staff is not nearby, other people nearby can provide help in time. The patient can also actively call the medical staff through the call button 35. The call button 35 triggers the third communication link and sends a request signal to the nurse's handheld device 4. The nurse's handheld device 4 forwards the received request signal to the control computer 5 through the fourth communication link. The control computer 5 accesses the server 6 and backs up the request signal. The nurse's handheld device 4 sends a response signal to the signal feedback device 3 through the third communication link. The signal feedback device 3 forwards the received response signal to the control computer 5 through the second communication link. The control computer 5 accesses the server 6 and backs up the response signal. The information (request signal / response signal) is recorded and stored through the control computer 5 and the server 6, ensuring the integrity of information recording, facilitating the statistics and review of each service time, providing data reference for medical management, and facilitating the improvement of the quality of medical infusion care work.

[0039] Further, the power supply I of the infusion measurement and control device 2 is used to provide working power for the single-chip microcomputer 21, the touch display screen 29, the communication component I 26, the positioning element 27, the power detection element 25, the liquid level detection element 22, the drip speed detection element 23, the infusion flow control component 24 and the radio frequency induction element 28, and the power supply I is driven by the switching element I; the power supply II of the signal feedback device 3 is used to provide working power for the controller 31, the vibration element 32, the heart rate detection element 33, the alarm 34, the call button 35, the communication component II 36 and the radio frequency identification tag 37, and the power supply II is driven by the switching element II; preferably, both the power supply I and the power supply II are button batteries or lithium batteries with a charging circuit.

[0040] The above is only a preferred embodiment of the present invention, and does not impose any limitation on the technical scope of the present invention. Those skilled in the art can make some deformations and modifications under the inspiration of this technical solution. Any modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A medical infusion flow monitoring and alarming system based on a mobile phone client, comprising an infusion device, the infusion device including an infusion bottle, an upper infusion hose, a Murphy's dropper, and a lower infusion hose that are connected in sequence from top to bottom and communicate with each other; characterized in that, The monitoring and alarming system includes an infusion measurement and control device, a wearable signal feedback device, a nurse's handheld device, a control computer, and a server; the control computer is connected to the infusion measurement and control device, the signal feedback device, and the nurse's handheld device through wireless data transmission to form an information interaction network; The infusion measurement and control device includes a single-chip microcomputer, and a liquid level detection element, a drip speed detection element, an infusion flow control component, a power detection element, a communication component I, a positioning element, a radio frequency induction element, a power supply I, and a touch display screen that are respectively electrically connected to the single-chip microcomputer; the infusion measurement and control device establishes a first communication link with the control computer through the communication component I, and the infusion measurement and control device sends the liquid medicine pulse signal collected by the liquid level detection element and the drip speed detection element and the power signal of the power supply I collected by the power detection element to the control computer through the first communication link; The signal feedback device includes a controller, and a vibration element, a heart rate detection element, an alarm, a call button, a communication component II, a radio frequency identification tag, and a power supply II that are electrically connected to the controller; the signal feedback device establishes a short-range radio communication link by pairing the radio frequency identification tag with the radio frequency induction element of the infusion measurement and control device, and each pair of radio frequency identification tags and radio frequency induction elements has a unique electronic code set for pairing; the signal feedback device triggers the communication component II to establish a second communication link with the control computer and a third communication link with the nurse's handheld device through the electronic code, and the control computer establishes a fourth communication link with the nurse's handheld device; The control computer sends the liquid medicine pulse signal to the signal feedback device and the nurse's handheld device respectively through the second communication link and the fourth communication link, and sends a somatosensory feedback signal matching the liquid medicine pulse signal to the signal feedback device through the second communication link, and the controller triggers the vibration element to make a somatosensory feedback action matching the somatosensory feedback signal; The heart rate detection element is connected to the alarm through a control circuit, and the alarm sends a flow control signal to the infusion flow control component of the infusion measurement and control device through the controller; The call button triggers the third communication link and sends a request signal to the nurse's handheld device, and the nurse's handheld device sends a response signal to the signal feedback device through the third communication link; The liquid level detection element is a photoelectric sensor, including a photosensitive triode and an infrared diode, and the photosensitive triode and the infrared diode are vertically arranged on the opposite outer walls of the lower bottleneck of the infusion bottle; The drip speed detection element is an inductive sensor, and its coil surrounds the outer circumference of the Murphy's dropper.

2. The medical infusion flow monitoring and alarming system based on a mobile phone client according to claim 1, characterized in that, The liquid level detection element is arranged at the lower bottleneck of the infusion bottle, the drip speed detection element is arranged around the circumference of the Murphy's dropper, and the infusion flow control component is sleeved on the lower infusion hose.

3. The medical infusion flow monitoring and alarming system based on a mobile phone client according to claim 1, characterized in that, Both the communication component I and the communication component II are wireless communication components, and adopt one of WIFI, Bluetooth, and ZigBee; the positioning element is a GPS locator.

4. The medical infusion flow monitoring and alarming system based on a mobile phone client according to claim 1, characterized in that, The signal feedback device is a wearable RFID bracelet.

5. The medical infusion flow monitoring and alarming system based on a mobile phone client according to claim 4, characterized in that, A printing layer is arranged on the outer surface of the RFID bracelet.

6. The medical infusion flow monitoring and alarming system based on a mobile phone client according to claim 1 or 2, characterized in that, The infusion flow control assembly includes a housing, a stepper motor and an eccentric wheel arranged inside the housing. The stepper motor is drivingly connected to the eccentric wheel, and the lower infusion hose passes through the housing and passes by one side of the eccentric wheel.

7. The medical infusion flow monitoring and alarming system based on a mobile phone client according to claim 1, characterized in that, The power supply Ⅰ of the infusion measurement and control device is used to provide working power for the single-chip microcomputer, the touch display screen, the communication component Ⅰ, the positioning element, the power detection element, the liquid level detection element, the drip rate detection element, the infusion flow control assembly and the radio frequency induction element, and the power supply Ⅰ is driven by the switching element Ⅰ; the power supply Ⅱ of the signal feedback device is used to provide working power for the controller, the vibration element, the heart rate detection element, the alarm, the call button, the communication component Ⅱ and the radio frequency identification tag, and the power supply Ⅱ is driven by the switching element Ⅱ.

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