Intelligent infusion device and safety monitoring alarm processing system

Abstract

The utility model belongs to the technical field of medical equipment, and discloses an intelligent infusion device, a safety monitoring alarm processing system, an infusion monitor arranged on a Murphy's dropper of an infusion apparatus, and a flow adjusting assembly arranged on a catheter between the Murphy's dropper of the infusion apparatus and a flow adjuster. The flow adjusting assembly comprises a sleeve, a rubber cloth layer, at least one set of extrusion protrusions and an air blower, the infusion hose is sleeved with the sleeve, the rubber cloth layer is laid on the inner wall of the sleeve, the sleeve and the edge of the rubber cloth layer are fixed in a thermoplastic mode, an inflation area is formed between the sleeve and the rubber cloth layer, and the air blower is arranged in the inflation area. The surface of the rubber cloth layer is provided with at least one set of extrusion protrusions, the at least one set of extrusion protrusions and the infusion hose are coaxially arranged, the air blower is fixed to the outer side wall of the sleeve, and the air outlet end of the sleeve enters the inflation area through a pipeline. The technical scheme is complete in function and has display, alarm and control functions related to the infusion dripping speed.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to an intelligent infusion device and a safety monitoring and alarm processing system. Background Art

[0002] Currently, the closest prior art: To effectively monitor the infusion situation of patients, many kinds of infusion alarms or monitors are provided on the market. The existing infusion monitoring alarms are classified as follows:

[0003] First, a simple infusion alarm, which is too simple and only has the function of alarming when the infusion is completed.

[0004] Second, a complex infusion alarm system, which is difficult to deploy and has high cost. It is also inconvenient for patients and nurses to use. Sending detailed monitoring information to the background server or the nurse station, patients cannot timely understand their own infusion situation.

[0005] Third, there are also some infusion alarms that use a display screen to display the infusion information in real time. On the one hand, it increases the cost. On the other hand, users need to get up to look at the display screen, which is inconvenient and various parameters cannot be set according to the needs of patients, such as the upper limit alarm of the infusion volume.

[0006] In summary, the problems existing in the prior art are:

[0007] (1) The functions are simple and cannot fully meet the needs of users. For example, some devices only have the function of alarming when the infusion is completed and cannot handle various complex situations encountered during infusion;

[0008] (2) The functions are perfect and complex but not convenient to use. For example, some devices use a display screen to display the infusion drip rate information in real time and use various switches to control the infusion parameters, which requires users to get up, etc.;

[0009] (3) The functions are complex and the cost is very high, and the deployment is difficult. For example, some infusion alarm systems need to be connected to the server of the nurse station and require professional personnel for deployment, etc., and users cannot conveniently view the infusion information. Summary of the Utility Model

[0010] In view of the problems existing in the prior art, the present utility model provides an intelligent infusion device, including an infusion set, an infusion monitor on the Murphy's dropper of the infusion set, and a flow rate adjustment component on the catheter between the Murphy's dropper and the flow regulator of the infusion set. The flow rate adjustment component includes a sleeve, a rubber cloth layer, at least one set of extrusion protrusions, and a blower. Among them, the sleeve is sleeved on the infusion hose, the inner wall of the sleeve is lined with a rubber cloth layer, the edge of the sleeve and the rubber cloth layer is thermally fixed, an inflation area is formed between the sleeve and the rubber cloth layer, at least one set of extrusion protrusions is arranged on the surface of the rubber cloth layer, at least one set of extrusion protrusions is coaxially arranged with the infusion hose, the blower is fixed on the outer side wall of the sleeve, and the air outlet end of the sleeve enters the inflation area through a pipeline.

[0011] In one embodiment, the infusion monitor includes an infusion rate monitor, a main controller, and a communication chip. Among them, the infusion rate monitor, the controller, and the communication chip are integrated on the first circuit board. The infusion rate monitor and the communication chip are respectively connected to the controller, and the detection end of the infusion rate monitor is aligned with the inside of the liquid storage cavity of the Murphy's dropper.

[0012] For the multi-mode situation where the interference signal and the reference signal each contain several interference feature vectors, the interference state S(V I , V S ) is calculated as follows:

[0013]

[0014] Where S[V I , V S M×N is called the interference state matrix, and each element in the matrix represents the interference state of the kth feature vector in V I and the lth feature vector in V S . Only when each element in the two feature vector sets does not interfere, S(V I , V S ) = 0, the interference signal will not interfere with the reference signal; otherwise, S(V I , V S ) > 0, and at this time the interference signal will interfere with the reference signal.

[0015] In one embodiment, the flow rate adjustment component further includes a sub-controller and a signal receiving chip. The sub-controller and the signal receiving chip are integrated on the second circuit board. The blower and the signal receiving chip are respectively connected to the sub-controller

[0016] ​A safety monitoring and alarm processing system applicable to intelligent infusion devices, the safety monitoring and alarm processing system applicable to intelligent infusion devices includes:

[0017] An intelligent mobile terminal running an APP;

[0018] The intelligent infusion device according to the above;

[0019] The intelligent mobile terminal communicates wirelessly with the intelligent infusion device.

[0020] In one embodiment, the system further includes an APP module. The APP module sends a request to the main controller through the Bluetooth module of the intelligent mobile terminal, and sends the drip rate and liquid level information to the intelligent mobile terminal for display or to cut off the infusion process; the APP module receives the alarm signal sent by the main controller through the Bluetooth module;

[0021] Let the emissivity of the infusion tube surface be ε, and the surface reflectivity be 1 - ε; the drip rate be τ, and the liquid level emissivity be 1 - τ;

[0022] Then the total radiation S received by the main controller = surface radiation + drip rate radiation + liquid level radiation, that is:

[0023] S = τεS0 + τ(1 - ε)S a +(1 - τ)S atm ;

[0024] In the above formula: S is the total radiant emittance received by the main controller from the outer surface of the infusion tube; S0 is the radiant emittance received by the intelligent thermometer at the temperature of the outer surface of the infusion tube; S a is the radiant emittance received by the main controller at the temperature inside the infusion tube; S atm is the radiant emittance received by the main controller at the liquid level temperature inside the infusion tube;

[0025] Using the instrument coefficient C determined by the main controller through experiments, convert the radiation relationship into a calorific value relationship, that is:

[0026] I0 = CS0;

[0027] Then I'0 = τεI0 + τ(1 - ε)I a +(1 - τ)I atm ;

[0028] In the above formula: I'0 is the reflection value of the infusion tube tested by the main controller; I0 is the calibrated calorific value at the temperature of the outer surface of the infusion tube; I a is the calibrated calorific value at the temperature of the infusion tube; I atm is the calibrated calorific value at the liquid level temperature inside the infusion tube;

[0029] The calibrated calorific value at the temperature of the outer surface of the infusion tube is obtained as:

[0030]

[0031] The relationship between the calibrated calorific value and the corresponding temperature is as follows:

[0032]

[0033] In the above formula: I is the calibrated calorific value at temperature T; T is the thermodynamic temperature; R, B, and F are calibration constants depending on the aperture, filter, and scanner type;

[0034] The gas transmittance is:

[0035]

[0036] where a is the attenuation coefficient, taking 0.046 for the short-wave scanner; d is the distance from the detector to the target to be measured.

[0037] A control method applicable to an intelligent infusion safety monitoring and alarm processing system, the method comprising the following steps:

[0038] Step 1: Run the APP program;

[0039] Step 2: Set the infusion control parameters;

[0040] Step 3: Receive the monitoring signal and output for display;

[0041] Step 4: Calculate and display the estimated remaining infusion time;

[0042] Step 5: Calculate whether the monitored value reaches the set value of the control parameter. If it reaches the set value, alarm and send a control signal;

[0043] Step 6: Stop the APP program.

[0044] In one embodiment, the infusion control parameters include: an upper threshold and a lower threshold of the infusion flow rate.

[0045] In one embodiment, calculating whether the monitored value reaches the set value of the control parameter. If it reaches the set value, alarm and send a control signal, specifically,

[0046] Monitoring step: Real-time obtain the infusion flow rate and the infusion volume, and compare them with the infusion control parameters. If the real-time data exceeds the set value, send a control signal to the main controller to close the valve; if the real-time data does not exceed the set value, continue to monitor;

[0047] Alarm step: Receive the alarm signal sent by the app module and send a control signal to the main controller to close the valve.

[0048] In one embodiment, the data acquisition method for obtaining the infusion flow rate includes:

[0049] According to the spectral flowmeter, the flow velocity parameter in the infusion tube is obtained. The infrared spectral emissivity has an approximately linear relationship with the flow velocity at the selected wavelength, that is:

[0050] ε i2 = ε i1 [1 + k(v2 - v1)]

[0051] In the formula, ε i1 is the spectral emissivity at wavelength λ i and flow velocity V1; ε i2 is the spectral emissivity at wavelength λ i and flow velocity V2; V1 and V2 are the flow velocities at two different times respectively; k is a coefficient;

[0052] V i1 is the output signal of the i-th channel at the first flow velocity T1, V i2 is the output signal of the i-th channel at the first flow velocity T2. The emissivity ε i1 ∈(0, 1) at the flow velocity T1. By randomly selecting a group of ε i1 , the actually obtained T i1 under the parameter ε i1 is calculated by the following formula:

[0053]

[0054] Assume k ∈ (-η, η). By randomly selecting a k, the expression of the emissivity ε i2 at the second flow velocity T2 is:

[0055]

[0056] The actually obtained T i1 under the parameter ε i2 is calculated by the following formula:

[0057]

[0058] In one embodiment, the step of stopping the APP program is specifically to calculate whether the total infusion volume reaches the set value. If it reaches the set value, a control signal to close the valve is sent to the control module, and the APP program stops running.

[0059] In summary, the advantages and positive effects of the present utility model are to take into account function, cost, and convenience at the same time, specifically:

[0060] First, the function is complete. It has functions related to infusion drip rate display, alarm, and control.

[0061] Second, low cost and simple deployment. The infusion monitor can be quickly installed and fixed on the Murphy drip chamber of the infusion device.

[0062] Third, good convenience. The intelligent APP is easy to use and suitable for various people. Even elderly patients can operate it conveniently, and it meets the personalized needs of users at the same time. Description of the Drawings

[0063] Figure 1 is a schematic structural diagram of the intelligent infusion safety monitoring and alarm processing system provided by an embodiment of the present invention;

[0064] Figure 2 is a schematic structural diagram of the intelligent infusion device in a non-working state provided by an embodiment of the present invention;

[0065] Figure 3 is a schematic structural diagram of the intelligent infusion device in a flow rate adjustment state provided by an embodiment of the present invention;

[0066] Figure 4 is a top view of the intelligent infusion device in a non-working state provided by an embodiment of the present invention;

[0067] Figure 5 is a top sectional view of the intelligent infusion device in a flow rate adjustment state provided by an embodiment of the present invention;

[0068] Figure 6 is a schematic connection diagram of the main control circuit of the intelligent infusion safety monitoring and alarm processing system provided by an embodiment of the present invention;

[0069] Figure 7 is a schematic composition diagram of the intelligent infusion safety monitoring and alarm processing system provided by an embodiment of the present invention;

[0070] Figure 8 is a flowchart of the intelligent infusion safety monitoring and alarm processing method provided by an embodiment of the present invention.

[0071] 1. Infuser 101, Murphy's dropper 102, infusion hose

[0072] 201. Sleeve 202. Rubber cloth layer 203. Extrusion protrusion

[0073] 204. Blower 205. Inflatable area 206. Sub-controller

[0074] 207. Signal receiving chip 3. Intelligent mobile terminal 4. APP module

[0075] 501. Infusion speed monitor 502. Main controller 503. Communication chip

[0076] 208, First power supply group 504, Second power supply group Detailed implementation manners

[0077] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0078] An intelligent infusion device includes an infusion set 1, an infusion monitor 5 on the Murphy's dropper 101 of the infusion set 1, and a flow regulation assembly on the catheter 102 between the Murphy's dropper and the flow regulator of the infusion set 1. The flow regulation assembly includes a sleeve 201, a rubber cloth layer 202, at least one set of extrusion protrusions 203, and a blower 204. Among them, the sleeve is sleeved on the infusion hose 102, the inner wall of the sleeve 201 is provided with a rubber cloth layer 202, the edges of the sleeve 201 and the rubber cloth layer 202 are thermally fixed, an inflation area is formed between the sleeve 201 and the rubber cloth layer 202, at least one set of extrusion protrusions 203 are arranged on the surface of the rubber cloth layer 202, at least one set of extrusion protrusions 203 are coaxially arranged with the infusion hose 102, the blower 204 is fixed on the outer side wall of the sleeve 201, and the air outlet end of the sleeve 201 enters the inflation area 205 through a pipeline.

[0079] In one embodiment, the infusion monitor 5 includes an infusion speed monitor 501, a main controller 502, and a communication chip 503. Among them, the infusion speed monitor 501, the main controller 502, and the communication chip 503 are integrated on the first circuit board. The infusion speed monitor 501 and the communication chip 503 are respectively connected to the main controller 502, and the detection end of the infusion speed monitor 501 is aligned with the inside of the liquid storage cavity of the Murphy's dropper 101;

[0080] The infusion speed monitor 501 is preferably an infrared photoelectric sensor. Using photoelectric detection technology is currently a relatively good method. Compared with camera monitoring, it is not restricted by the dim light at night. The system can select a slot type photoelectric switch such as LTH-301-32 as the sensor for monitoring liquid drops. The infrared emitting tube of LTH-301-32 emits infrared light, passes through the Murphy's dropper, and reaches the receiving tube. When there is no liquid medicine drop in the Murphy's dropper, the attenuation of the infrared is relatively small, and the output current of the photoelectric switch is relatively strong at this time; when there is a liquid medicine drop in the Murphy's dropper, the infrared light is absorbed by the liquid medicine, and the photoelectric receiving tube can only receive a relatively weak signal. At this time, the output current of the photoelectric switch is relatively strong. According to the strength of the output current of the photoelectric switch, it can be judged whether there is a liquid drop at present, so that the drip speed of the infusion can be accurately monitored by the subsequent single-chip microcomputer.

[0081] Both the main controller 502 and the sub - controller 206 select the most common 89C52 series single - chip microcomputers. The single - chip microcomputer judges whether there is a liquid drop falling currently through the electrical signal transmitted by the infrared photoelectric sensor, calculates the infusion drip speed according to the time interval between the liquid drops falling, can also calculate the liquid flow rate that has been infused, and estimates the remaining infusion time. When the infusion flow rate reaches the preset value of the user, by sending a control signal to the sub - controller, the sub - controller 206 controls the start, stop and inflation volume of the blower 204 to automatically adjust the infusion system. When there is no liquid drop in the detection part, the liquid infusion speed monitoring module detects that the flow rate is zero, and also controls the inflation volume of the blower to adjust the extrusion protrusion 203 to clamp the infusion tube to terminate the liquid from continuing to flow into the human body.

[0082] For the multi - mode situation where the infusion speed monitoring module contains several interference feature vectors for both the interference signal and the reference signal, the interference state S(V I ,V S ) is calculated as follows:

[0083]

[0084] Where S[V I ,V S M×N Is called the interference state matrix, and each element in the matrix Represents the interference state of the k - th feature vector in V I And the l - th feature vector in V S . Only when each element in the two feature vector sets does not interfere, S(V I ,V S ) = 0, the interference signal will not interfere with the reference signal; otherwise, S(V I ,V S )>0, and at this time the interference signal will interfere with the reference signal.

[0085] In one embodiment, the flow rate adjustment component further includes a sub - controller 206 and a signal receiving chip 207. The sub - controller 206 and the signal receiving chip 207 are integrated on the second circuit board. The blower and the signal receiving chip are respectively connected to the sub - controller. It should be further pointed out that the sub - controller 206, the signal receiving chip 207 and the blower 204 are respectively powered by the first power supply group 208.

[0086] Embodiment Two:

[0087] A safety monitoring and alarm processing system applicable to an intelligent infusion device, the safety monitoring and alarm processing system applicable to the intelligent infusion device includes:

[0088] An intelligent mobile terminal 3 running an APP;​

[0089] According to the above intelligent infusion device;

[0090] The intelligent mobile terminal communicates wirelessly with the intelligent infusion device.

[0091] In one embodiment, the system further includes an APP module 4. The APP module 4 sends a request to the main controller 502 through the Bluetooth chip of the intelligent mobile terminal 3, and sends the drip rate and liquid level information to the intelligent mobile terminal 3 for display or to cut off the infusion process; the APP module receives the alarm signal sent by the main controller through the Bluetooth module;

[0092] Let the emissivity of the infusion tube surface be ε, the surface reflectivity be 1 - ε; the drip rate be τ, and the liquid level emissivity be 1 - τ;

[0093] Then the total radiation S received by the main controller = surface radiation + drip rate radiation + liquid level radiation, that is:

[0094] S = τεS0 + τ(1 - ε)S a +(1 - τ)S atm ;

[0095] In the above formula: S is the total radiant exitance received by the main controller from the outer surface of the infusion tube; S0 is the radiant exitance received by the intelligent temperature measuring instrument at the temperature of the outer surface of the infusion tube; S a is the radiant exitance received by the main controller at the temperature inside the infusion tube; S atm is the radiant exitance received by the main controller at the liquid level temperature inside the infusion tube;

[0096] Using the instrument coefficient C determined by the main controller through experiments, convert the radiation relationship into a calorific value relationship, that is:

[0097] I0 = CS0;

[0098] Then I'0 = τεI0 + τ(1 - ε)I a +(1 - τ)I atm ;

[0099] In the above formula: I'0 is the reflection value of the infusion tube tested by the main controller; I0 is the calibrated calorific value at the temperature of the outer surface of the infusion tube; I a is the calibrated calorific value at the temperature of the infusion tube; I atm is the calibrated calorific value at the liquid level temperature inside the infusion tube;

[0100] The calibrated calorific value at the temperature of the outer surface of the infusion tube is:

[0101]

[0102] The relationship between the calibrated calorific value and the corresponding temperature is:

[0103]

[0104] In the above formula: I is the calibrated calorific value at temperature T; T is the thermodynamic temperature; R, B, and F are calibration constants depending on the aperture, filter, and scanner type;

[0105] The gas transmittance is:

[0106]

[0107] where a is the attenuation coefficient, taking 0.046 for the short-wave scanner; d is the distance from the detector to the target to be measured.

[0108] Example 3:

[0109] A control method applicable to an intelligent infusion safety monitoring and alarm processing system, the method comprising the following steps:

[0110] Step 1, run the APP program;

[0111] Step 2, set the infusion control parameters;

[0112] Step 3, receive the monitoring signal and output and display it;

[0113] Step 4, calculate and display the estimated remaining infusion time;

[0114] Step 5, calculate whether the monitored value reaches the set value of the control parameter. If it reaches the set value, alarm and send a control signal;

[0115] Step 6, stop the APP program.

[0116] In one embodiment, the infusion control parameters include: an upper threshold value and a lower threshold value of the infusion flow rate.

[0117] In one embodiment, calculating whether the monitored value reaches the set value of the control parameter. If it reaches the set value, alarm and send a control signal, specifically,

[0118] Monitoring step: Obtain the infusion flow rate and infusion volume in real time, and compare them with the infusion control parameters. If the real-time data exceeds the set value, send a control signal to the main controller to close the valve; if the real-time data does not exceed the set value, continue to monitor;

[0119] Alarm step: Receive the alarm signal sent by the app module and send a control signal to the main controller to close the valve.

[0120] In one embodiment, the data acquisition method for obtaining the infusion flow rate includes:

[0121] The flow velocity parameter inside the infusion tube is obtained according to the spectral flowmeter. The infrared spectral emissivity has an approximately linear relationship with the flow velocity at the selected wavelength, that is:

[0122] ε i2 = ε i1 [1 + k(v2 - v1)]

[0123] In the formula, ε i1 is the spectral emissivity at wavelength λ i , when the flow velocity is V1; ε i2 is the spectral emissivity at wavelength λ i , when the flow velocity is V2; V1 and V2 are the flow velocities at two different times respectively; k is a coefficient;

[0124] V i1 is the output signal of the i-th channel at the first flow velocity T1, V i2 is the output signal of the i-th channel at the first flow velocity T2. The emissivity ε i1 ∈(0, 1) at the flow velocity T1. By randomly selecting a group of ε i1 , the actually obtained T i1 under the parameter ε i1 is calculated by the following formula:

[0125]

[0126] Assume k ∈ (-η, η). By randomly selecting a k, the expression of the emissivity ε i2 at the second flow velocity T2 is:

[0127]

[0128] The actually obtained T i1 under the parameter ε i2 is calculated by the following formula:

[0129]

[0130] In one embodiment, the step of stopping the APP program is specifically to calculate whether the total infusion volume reaches the set value. If it reaches the set value, a control signal to close the valve is sent to the control module, and the APP program stops running.

[0131] The present utility model proposes a solution for an intelligent infusion safety monitoring and alarm processing system, which can take into account the issues of function, cost, and convenience at the same time.

[0132] The system can be divided into two major parts. One part is the hardware device of the infusion monitor, which is installed on the Murphy's dropper of the infusion device. The other part is the APP of the smart phone, which can run on the user's own mobile phone.

[0133] The infusion monitor 5 includes a necessary second power supply group 504, an infusion drip rate monitor 501, a main controller 502, and a low-power Bluetooth communication module as a communication chip 503. The second power supply group 504 independently powers the infusion drip rate monitor 501, the main controller 502, and the communication chip 503.

[0134] The flow rate adjustment component includes a sleeve 201, a rubber cloth layer 202, at least one set of extrusion protrusions 203, and a blower 204, a sub-controller 205, a signal receiving chip 206, and a first battery pack 208. The first battery pack 208 independently powers the blower 204, the sub-controller 205, and the signal receiving chip 206 respectively.

[0135] The smartphone APP is installed on the very popular smartphone. It establishes a connection with the infusion drip rate monitoring module via Bluetooth, receives the data transmitted by the infusion drip rate monitoring module, and realizes various infusion-related functions.

[0136] Description of the main solution and effects: As Figure 1 shown, an intelligent infusion safety monitoring and alarm processing system includes an intelligent mobile terminal 3 running the APP, a flow rate adjustment component, and an infusion speed monitor. The infusion speed monitor includes a main controller and a communication module. Among them, the infusion speed monitoring module 501 of the infusion speed monitor is connected to the main controller 502 and is used to monitor the drip rate of the infusion and send the monitoring signal to the main controller 502. The main controller is used to calculate the infusion speed. The communication chip 503 is connected to the main controller and is used to communicate with the intelligent mobile device and send the calculation result. The sub-controller of the flow rate adjustment component is connected to the main controller through the signal receiving chip and is used to receive the control signal of the main controller and achieve the purpose of closing, opening, or adjusting the flow rate by closing, opening, or adjusting the air intake volume of the blower.

[0137] The infusion speed monitoring module is arranged on the Murphy's dropper, and the execution end of the infusion speed monitoring module is aligned with the liquid storage cavity of the Murphy's dropper.

[0138] Part of the working principle:

[0139] As the infrared photoelectric sensor of the infusion speed monitoring module 501, the infrared photoelectric sensor is clamped on the Murphy's dropper. The liquid infusion speed monitoring module mainly includes an infrared photoelectric sensor. Using photoelectric detection technology is a relatively good method at present. Compared with camera monitoring, it is not restricted by the dim light at night. The system can select a slot-type photoelectric switch such as LTH-301-32 as the sensor for monitoring liquid drops. The infrared emitting tube of LTH-301-32 emits infrared light, which passes through the Murphy's dropper and reaches the receiving tube. When there is no liquid medicine dripping through the Murphy's dropper, the attenuation of infrared is relatively small, and the output current of the photoelectric switch is relatively strong at this time; when there is liquid medicine dripping through the Murphy's dropper, the infrared light is absorbed by the liquid medicine, and the photoelectric receiving tube can only receive a relatively weak signal. At this time, the output current of the photoelectric switch is relatively weak. According to the strength of the output current of the photoelectric switch, it can be judged whether there is a liquid drop falling at present, so that the infusion drip speed can be accurately monitored by the subsequent single-chip microcomputer.

[0140] 2) The single-chip microcomputer as the main controller: The system selects the most common 89C52 series single-chip microcomputer. The single-chip microcomputer judges whether there is a liquid drop falling at present through the electrical signal transmitted by the infrared photoelectric sensor. According to the time interval between the liquid drops falling, it calculates the infusion drip speed. It can also calculate the liquid flow that has been infused and estimate the remaining infusion time. When the infusion flow reaches the user's preset value, the cut-off switch is controlled through gpio to automatically block the infusion system. When there is no liquid medicine dripping into the detection part, the liquid infusion speed monitoring module detects that the flow rate is zero, and also controls the valve of the drip speed to clamp the infusion tube through gpio to terminate the liquid from continuing to flow into the human body.

[0141] 3) The flow regulation component as the control infusion module: The housing 201 of the flow regulation component is sleeved on the infusion tube.

[0142] The flow regulation component can also use the GPIO of the single-chip microcomputer to control the cut-off switch to automatically cut off the infusion.

[0143] 4) The communication chip 503 is a low-power Bluetooth chip, which is used to communicate with the APP of the intelligent terminal. When the user establishes a Bluetooth connection through the mobile phone APP, the infrared photoelectric sensor will start the Bluetooth sending thread and the Bluetooth receiving thread. The sending thread will send the current drip speed information data to the mobile phone APP client; the receiving thread will receive the control signaling sent by the APP and perform control operations such as opening and closing the valve for controlling the infusion of the infrared photoelectric sensor. The communication module can select other communication methods, such as zigbee, wifi, etc.

[0144] The intelligent terminal APP is an APP running on the intelligent terminal. Through the APP of the intelligent terminal such as a mobile phone, it connects to the infrared photoelectric sensor via Bluetooth to query and control the parameters of the monitor in real time. The functions implemented by the APP are:

[0145] 1. Connect to the infusion monitor via Bluetooth to obtain real-time information such as infusion flow rate and infusion volume. It can also display the estimated remaining infusion time, allowing users to relax and rest without constantly staring at the infusion bottle.

[0146] 2. The upper and lower limit thresholds of the infusion flow rate can be set. When it is greater than the upper limit or lower than the lower limit threshold, the monitoring alarm will automatically sound an alarm.

[0147] 3. A preset infusion volume can be set. When the preset value is reached, the monitoring alarm will automatically cut off the infusion and sound an alarm waiting for the nurse to handle. It is applicable to patients with requirements for the infusion volume.

[0148] As Figure 8 shown, the specific steps of an intelligent infusion safety monitoring and alarm handling method are as follows:

[0149] Step S01: Install and fix the infusion monitor on the Murphy drip chamber of the infusion device and the upper infusion tube.

[0150] Step S02: Turn on the power switch to start the infusion monitoring component, and the infusion monitor starts to continuously monitor information such as the flow rate of the infusion liquid.

[0151] Step S03: The user opens the infusion monitor APP on the mobile phone;

[0152] Step S04: The intelligent terminal APP connects to the infusion monitor via Bluetooth, and the infusion flow rate, total infusion volume, and remaining infusion time can be continuously displayed on the APP.

[0153] Step S05: The user can set the upper and lower limit values of the infusion flow rate and the total infusion volume threshold through the APP. If not set, the default values will be used.

[0154] Step S06: The user clicks the infusion button on the APP interface, and the APP sends a start infusion control signal to the infusion monitor via Bluetooth;

[0155] Step S07: The sub-master control chip of the infusion monitor controls the blower to start, exhaust the air in the inflation area, and the extrusion protrusion disengages from the infusion hose to start the infusion;

[0156] Step S08: The infusion monitor detects the infusion drip rate and sends the drip rate information to the APP at fixed intervals, such as every 5s;

[0157] Step S09: The APP receives and continuously displays the flow rate of the infusion liquid, and calculates and displays information such as the estimated remaining infusion time based on the total volume of the infusion liquid;

[0158] Step S010: Determine whether the flow rate exceeds the upper threshold or is lower than the lower threshold. If it exceeds the upper threshold or is lower than the lower threshold, exit Step S010 and enter Step S011 and Step S012 simultaneously; otherwise, exit Step S010 and enter Step S013;

[0159] Step S011: The APP pops up an alarm dialog box and gives an audible alarm about the current abnormal situation;

[0160] Step S012: The APP sends a control signal to stop the infusion to the infusion monitor and enters Step S015;

[0161] Step S013: The APP receives the user's infusion experience and determines whether the user encounters pain, itching at the infusion site or general discomfort, etc. If the user encounters pain, itching at the infusion site or general discomfort, etc., exit Step S013 and enter Step S011 and Step S012 simultaneously; otherwise, exit Step S013 and enter Step S014;

[0162] Step S14: Determine whether the total infusion volume has reached the preset value. If it has reached the preset value, enter Step S011 and Step S012 simultaneously, otherwise in S014, re-enter Step S09;

[0163] Step S15: When the infusion monitor detects that the infusion drip rate is 0, the infusion monitor is turned off and the infusion stops.

[0164] Functionally, the infrared photoelectric sensor is used to monitor the infusion liquid, and the signal when the liquid flows is converted into an electrical signal and sent to the single-chip microcomputer processor. The processor can accurately calculate the infusion drip rate according to the magnitude of the electrical signal. Based on the calculated drip rate information, the remaining time of the current infusion can be calculated. These information are sent to the smartphone app via the Bluetooth module and displayed in real time. The smartphone app, according to the received drip rate information, displays the current drip rate and the remaining infusion time in real time, alarms when the infusion speed is too fast or too slow and at the end (audible alarm and mobile phone buzzer alarm, etc.), and automatically cuts off when the infusion reaches the maximum threshold, etc. The user can also set the upper limit, lower limit of the infusion drip rate, the threshold of the infusion flow rate, etc. on the app. The APP can provide various complex and delicate control functions.

[0165] In terms of cost, the infusion monitor only retains the necessary hardware modules for infusion drip rate monitoring, calculation, control, etc. Most of the complex functions are implemented on the mobile phone app. There is no need for a display screen, additional alarm, etc., nor complex deployments such as connecting to the background server, which simplifies the design of the hardware system and reduces the cost.

[0166] In terms of ease of use, users can conveniently view the infusion information in real time on their own smartphones and can also easily set various parameters of the infusion on the mobile phone, which is extremely convenient. In contrast, traditional monitoring alarms require users to look up and get up to check the infusion information, which is very inconvenient.

[0167] 1. The liquid speed monitor can also be replaced by other sensors, such as a CMOS camera sensor, a weighing sensor, etc.

[0168] 2. The main controller and the communication chip can be two independent chips, or an SOC chip that includes both functions can be selected. Using two independent chips provides greater flexibility.

[0169] 3. The communication chip can choose other communication methods, such as zigbee, wifi, etc.

[0170] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An intelligent infusion device, comprising an infusion set, characterized in that: The infusion monitor on the Murphy's dropper of the infusion device and the flow regulating component arranged on the catheter between the Murphy's dropper and the flow regulator of the infusion device, the flow regulating component includes a sleeve, a rubber cloth layer, at least one group of extrusion protrusions, and a blower, wherein the sleeve is sleeved on the infusion hose, the inner wall of the sleeve is paved with a rubber cloth layer, the edges of the sleeve and the rubber cloth layer are thermoplastically fixed, an inflation zone is formed between the sleeve and the rubber cloth layer, the surface of the rubber cloth layer is provided with at least one group of extrusion protrusions, at least one group of extrusion protrusions is coaxially arranged with the infusion hose, the blower is fixed to the outer side wall of the sleeve, and the air outlet end of the sleeve enters the inflation zone through a pipeline.

2. The intelligent infusion device according to claim 1, characterized in that: The infusion monitor includes an infusion speed monitor, a main controller, and a communication chip, wherein the infusion speed monitor, the controller, and the communication chip are integrated on a first circuit board, the infusion speed monitor and the communication chip are respectively connected to the controller, and the detection end of the infusion speed monitor is aligned with the inside of the liquid storage cavity of the Murphy's dropper.

3. The intelligent infusion device according to claim 1, characterized in that: The flow regulating component also includes a sub-controller and a signal receiving chip. The sub-controller and the signal receiving chip are integrated on a second circuit board. The blower and the signal receiving chip are respectively connected to the sub-controller.

4. A safety monitoring and alarm processing system suitable for an intelligent infusion device, characterized in that: The safety monitoring and alarm processing system for the intelligent infusion device includes: Smart mobile terminal running APP; The intelligent infusion device according to any one of claims 1 to 3 above; The intelligent mobile terminal communicates wirelessly with the intelligent infusion device.

5. The security monitoring alarm processing system according to claim 4, characterized in that: The system also includes an APP module, which sends a request to the main controller through the Bluetooth module of the smart mobile terminal, sends the drip rate and liquid level information to the smart mobile terminal for display or cuts off the infusion process; the APP module receives the alarm signal sent by the main controller through the Bluetooth module.

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