Physical cooling fluid replacement device

Abstract

The application discloses a physical cooling liquid supplementing device, which is a hand-held portable device and comprises a shell, a liquid supplementing module, a liquid refrigeration module and a power supply circuit. The shell comprises a shell main body and a front machine cover. A peristaltic pump assembly in the liquid supplementing module is arranged in the shell main body, and a pump head of the peristaltic pump is arranged on the front side of the shell main body and used for controlling the liquid flow speed in a liquid supplementing pipe. The liquid supplementing module comprises a liquid supplementing frame, the peristaltic pump assembly, a liquid supplementing bag and the liquid supplementing pipe. The peristaltic pump assembly is arranged in the shell main body, the liquid supplementing pipe passes through the peristaltic pump assembly, the pipe line of the liquid supplementing pipe passing through the peristaltic pump assembly is movably connected with the peristaltic pump assembly through a clamping device arranged on the peristaltic pump assembly. A first connecting end of the liquid supplementing pipe is connected with the liquid supplementing bag, and an injection device is arranged at a second connecting end of the liquid supplementing pipe. The application can directly cool liquid at an ambient temperature of about 30 DEG C to 0-4 DEG C and keep the low-temperature output.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of liquid supplementing and cooling devices, in particular to a physical cooling and liquid supplementing device. BACKGROUND

[0002] With the global climate warming, human beings often need to work in very hot environments. In recent years, people who work in high temperature and high humidity environments, such as military training, firefighting, construction and other heavy physical labor, are prone to various discomforts and even diseases due to high body temperature, such as heat stroke. If physical cooling is not performed in time, the mortality rate will be very high. In practice, heat stroke patients have high body temperature (above 40℃) for too long, which causes body function disorder and easily leads to death.

[0003] For people with high body temperature, the primary task is to lower the core body temperature of the people with high body temperature in time through physical cooling means. Generally, the core body temperature of the patient is lowered to below 39℃ within 40 minutes, and the core body temperature of the patient is lowered to below 38.5℃ within 2 hours. Rapid and effective physical cooling can greatly reduce the mortality rate of heat stroke. For people with high body temperature, the common way is to use ice bags and other physical cooling methods, which are low in efficiency and difficult to guarantee on site. Therefore, there is an urgent need for a liquid supplementing device that can quickly perform physical cooling outdoors. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a physical cooling and liquid supplementing device that can directly cool liquid at ambient temperature to 0-4℃ and maintain low temperature output. The present application can be used for physical cooling of people with high body temperature, so as to lower the body temperature of the people with high body temperature to below 38.5℃, and lay the foundation for subsequent treatment.

[0005] The present application discloses a physical cooling and liquid supplementing device, comprising a shell, a liquid supplementing module, a liquid refrigeration module and a power supply circuit.

[0006] The liquid supplementing module comprises a liquid supplementing rack, a peristaltic pump assembly, a liquid supplementing bag and a liquid supplementing tube. The liquid supplementing rack is arranged outside the shell main body and is used for supporting the liquid supplementing bag containing liquid at ambient temperature. The peristaltic pump assembly is arranged inside the shell main body. The liquid supplementing tube passes through the peristaltic pump assembly. The part of the liquid supplementing tube passing through the peristaltic pump assembly is movably connected to the peristaltic pump assembly through a clamping device arranged on the peristaltic pump assembly. The first connecting end of the liquid supplementing tube is connected to the liquid supplementing bag. The second connecting end of the liquid supplementing tube is provided with an injection device. The injection device is used for injecting the cooled liquid in the liquid supplementing tube into the injection user. The part of the liquid supplementing tube close to the second connecting end is woundly connected to the liquid refrigeration module.

[0007] The liquid refrigeration module is arranged in the shell body and used for cooling the liquid at ambient temperature in the infusion tube;

[0008] The power supply circuit is connected with the liquid refrigeration module and the infusion module and used for supplying power to the liquid refrigeration module and the infusion module.

[0009] The shell comprises a cuboid-shaped shell body.

[0010] The liquid refrigeration module comprises a micro-compressor, a capillary tube, a drying valve, a condenser, a refrigeration device, a shell, an air inlet and an air outlet.

[0011] The micro-compressor, the capillary tube, the drying valve, the condenser and the refrigeration device are all arranged in the shell.

[0012] The output end of the micro-compressor is connected with the input end of the condenser, and the micro-compressor is used for compressing the refrigerant at low temperature and low pressure and in gaseous state into the condenser to form liquid refrigerant at high temperature and high pressure.

[0013] The drying valve is used for drying the refrigerant at high temperature and high pressure.

[0014] The output end of the condenser is connected with the input end of the capillary tube through the drying valve, and the condenser is used for radiating heat of the refrigerant at high temperature and high pressure to form refrigerant at low temperature and high pressure and in liquid state.

[0015] The output end of the capillary tube is connected with the input end of the refrigeration device, and the capillary tube is used for throttling the refrigerant at liquid state to reduce the pressure of the refrigerant.

[0016] The refrigeration device is used for gasifying and heat-absorbing the refrigerant at low temperature and high pressure and in liquid state to form gaseous refrigerant at low temperature and low pressure, and the gaseous refrigerant at low temperature and low pressure is used for cooling the liquid at ambient temperature in the pipeline of the infusion tube connected with the refrigeration device; the output end of the refrigeration device is connected with the input end of the micro-compressor.

[0017] The air inlet is arranged on the shell near the input end of the micro-compressor, and the air outlet is arranged on the shell near the output end of the condenser.

[0018] The refrigeration device is provided with a refrigeration device head near the output end, the pipeline of the infusion tube near the second connecting end is wound and connected with the refrigeration device head, and the refrigeration device head is provided with a temperature sensor used for measuring and displaying the temperature of the refrigeration device in real time.

[0019] The peristaltic pump assembly comprises a peristaltic pump body, a peristaltic pump motor and a peristaltic pump head.

[0020] The peristaltic pump body is located inside the shell body and connected to the peristaltic pump head. The peristaltic pump body is used to drive the peristaltic pump head to rotate according to the rotational force generated by the peristaltic pump motor.

[0021] The peristaltic pump motor is connected to the peristaltic pump body and is used to drive the peristaltic pump head to work;

[0022] The peristaltic pump head is provided with a snap-fit ​​device; the snap-fit ​​device is wound and connected to the infusion tube that passes through the inside of the peristaltic pump assembly.

[0023] The peristaltic pump head is used to rotate according to the rotational force generated by the peristaltic pump motor, thereby squeezing the infusion tube and the tubing connected thereto, so as to control the flow rate of the liquid in the infusion tube and the tubing connected thereto.

[0024] The infusion module also includes a bubble detector; the bubble detector is located inside the shell near the second connection end of the infusion tube, and is used to detect whether there are bubbles in the liquid after it has been cooled by the cooler. When bubbles are detected, the peristaltic pump motor is controlled to stop working and an audible alarm is sounded.

[0025] The power supply circuit includes an external interface, a power supply cable, and an internal interface; the external interface and the internal interface are connected by the power supply cable; the external interface is located on the outside of the shell body; the power supply cable and the internal interface are located inside the shell body; the internal interface is connected to the liquid cooling module and the infusion module respectively, and is used to supply power to the liquid cooling module and the infusion module.

[0026] The housing also includes: a front cover, an air inlet, an air outlet, an operation display panel, and a carrying handle;

[0027] The air inlet and air outlet are respectively located on the side wall of the housing body, and their positions correspond to the positions of the air outlet and air inlet of the liquid cooling module, respectively; the air inlet and air outlet are used for ventilation and heat dissipation of the liquid cooling module.

[0028] The front cover is hinged to the main body of the shell. The front cover is provided with a heat insulation sleeve slot, an infusion stand slot, an infusion tube inlet hole and an infusion tube outlet hole. The infusion stand slot is used to place the infusion stand when it is separated from the shell. A heat insulation sleeve is snapped into the heat insulation sleeve slot. The heat insulation sleeve is fitted onto the outer wall of the cooled infusion tube to keep the liquid inside the cooled infusion tube warm.

[0029] The carrying handle is located on the top surface of the shell body;

[0030] The infusion stand is detachably connected to the housing; when the infusion stand is separated from the housing, it is placed in the infusion stand slot.

[0031] The operation display panel is located on the side of the main body near the front cover, and is used to install operation buttons and a digital display screen; the digital display screen is used to display the temperature setting value, temperature measurement value, flow rate setting value, and flow rate measurement value; the operation buttons are used to input the temperature and flow rate setting values ​​and adjustment values; the operation buttons and the digital display screen are connected; the temperature measurement value is obtained by a temperature sensor; the flow rate measurement value is obtained by a peristaltic pump motor.

[0032] The physical cooling and fluid replenishment device also includes a control circuit module; the control circuit module is connected to the peristaltic pump motor, compressor, operation buttons, digital display screen, temperature sensor, and bubble detector respectively; the control circuit module is used to receive the detection data from the temperature sensor and bubble detector, and send the detection data to the digital display screen for display; and to receive and process the information input by the infusion user through the operation buttons.

[0033] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0034] (1) The present invention provides a physical cooling and fluid replenishment device, which can control the liquid flow rate through the peristaltic pump of the infusion module and control the liquid temperature through the liquid cooling module, so as to achieve the purpose of rapid body cooling by taking away heat through the low temperature liquid;

[0035] (2) The present invention provides a physical cooling and fluid replenishment device, which has a liquid cooling module inside and the infusion tube is wound and connected to the liquid cooling module. It can quickly cool down the ambient temperature liquid. The ambient temperature liquid can be any type of liquid suitable for injection into organisms.

[0036] (3) The present invention provides a physical cooling and fluid replenishment device. The infusion stand can be disassembled and stored in the front cover to become a small carrying case. It has a compact structure, high integration, convenient operation, and is easy to carry. It can be used in field emergency rescue. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is an external structural diagram of the device of the present invention in its working state;

[0039] Figure 2 This is a schematic diagram of the internal structure of the device of the present invention;

[0040] Figure 3 This is a schematic diagram illustrating the working principle of the device of the present invention;

[0041] Figure 4 This is an overall view of the device of the present invention in its stored state.

[0042] In the diagram: 1-1, main body of the casing; 1-2, handle; 1-3, front cover; 1-4, infusion bag; 1-5, infusion stand; 1-6, infusion stand slot; 1-7, insulation sleeve slot; 1-8, infusion tube outlet hole; 1-9, operating instructions; 1-10, infusion tube; 1-11, peristaltic pump head; 1-12, cooler head; 1-13, bubble detector; 1-14, insulation sleeve; 1-15, operation display panel; 1-16, infusion tube inlet hole.

[0043] 2-1. Miniature compressor; 2-2. Capillary tube; 2-3. Dryer valve; 2-4. Condenser; 2-5. Refrigerator; 2-6. Air inlet; 2-7. Air outlet; 2-8. Peristaltic pump body.

[0044] 3-1. External infusion bag and infusion stand; 3-2. Peristaltic pump head; 3-3. Peristaltic pump motor; 3-4. Refrigerator; 3-5. Miniature compressor; 3-6. Condenser; 3-7. Drying valve; 3-8. Capillary tube; 3-9. Bubble detector; 3-10. Insulation sleeve.

[0045] 4-1. Shell body; 4-2. Front cover; 4-3. Handle; 4-4. Infusion stand insertion hole; 4-5. Air outlet; 4-6. Infusion tube inlet; 4-7. Hinge device. Detailed Implementation

[0046] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0048] Figure 1 This is an external structural diagram of the device of the present invention in its working state;Figure 2 This is a schematic diagram of the internal structure of the device of the present invention; Figure 3 This is a schematic diagram illustrating the working principle of the device of the present invention; Figure 4 This is an overall view of the device of the present invention in its stored state.

[0049] Example 1:

[0050] This invention discloses a physical cooling and fluid replenishment device, including a shell, a fluid delivery module, a liquid cooling module, and a power supply circuit;

[0051] The shell includes a rectangular parallelepiped-shaped shell body;

[0052] The infusion module includes an infusion stand, a peristaltic pump assembly, an infusion bag, and an infusion tube. The infusion stand is located outside the main body and supports the infusion bag containing liquid at ambient temperature. The peristaltic pump assembly is located inside the main body, and the infusion tube passes through the inside of the peristaltic pump assembly. The tubing of the infusion tube passing through the inside of the peristaltic pump assembly is movably connected to the peristaltic pump assembly via a snap-fit ​​device. The first connection end of the infusion tube is connected to the infusion bag, and the second connection end of the infusion tube is provided with an injection device. The injection device is used to inject the cooled liquid in the infusion tube into the user's body. The tubing near the second connection end of the infusion tube is wound and connected to the liquid cooling module.

[0053] The liquid cooling module is located inside the housing and is used to cool the liquid in the infusion tube at ambient temperature.

[0054] The power supply circuit is connected to the liquid cooling module and the infusion module, and is used to supply power to the liquid cooling module and the infusion module.

[0055] The liquid refrigeration module includes a micro compressor, a capillary tube, a drying valve, a condenser, a cooler, a housing, an air inlet, and an air outlet;

[0056] The micro compressor, capillary tube, drying valve, condenser, and cooler are all installed inside the housing;

[0057] The output end of the micro compressor is connected to the input end of the condenser. The micro compressor is used to pressurize the low-temperature, low-pressure, gaseous refrigerant into the condenser to form a high-temperature, high-pressure liquid refrigerant.

[0058] The drying valve is used to dry the high-temperature and high-pressure refrigerant.

[0059] The output end of the condenser is connected to the input end of the capillary tube through a drying valve. The condenser is used to dissipate heat from the high-temperature and high-pressure refrigerant to form a low-temperature and high-pressure refrigerant in a liquid state.

[0060] The output end of the capillary tube is connected to the input end of the refrigerator. The capillary tube is used to throttle the refrigerant in liquid state to reduce the pressure of the refrigerant.

[0061] The refrigerator is used to vaporize the low-temperature, high-pressure, liquid refrigerant and absorb heat to form a low-temperature, low-pressure gaseous refrigerant, and to use the low-temperature, low-pressure gaseous refrigerant to cool the liquid in the pipeline connected to the refrigerator in the liquid delivery pipe; the output end of the refrigerator is connected to the input end of the micro compressor.

[0062] The air inlet is located on the housing near the input end of the micro compressor; the air outlet is located on the housing near the output end of the condenser.

[0063] When the low-temperature, low-pressure gaseous refrigerant passes through the refrigeration head, it cools the liquid delivery pipe that is wound and connected to the refrigeration head.

[0064] The low temperature can be below -5 degrees Celsius, and the high temperature can be greater than or equal to 20 degrees Celsius;

[0065] The low pressure can be below 0.5 MPa, and the high pressure can be greater than or equal to 1.5 MPa.

[0066] The cooler has a cooler head near the output end, and the pipeline of the infusion tube near the second connection end is wound and connected to the cooler head; the cooler head can be a hollow tube made of metal with good heat dissipation; the cooler head uses the low temperature and low pressure gaseous refrigerant inside to cool the liquid in the pipeline of the infusion tube connected to the cooler at the ambient temperature.

[0067] The cooler head is equipped with a temperature sensor, which is used to measure and display the temperature of the cooler in real time;

[0068] The peristaltic pump assembly includes: a peristaltic pump body, a peristaltic pump motor, and a peristaltic pump head;

[0069] The peristaltic pump body is located inside the shell body and connected to the peristaltic pump head. The peristaltic pump body is used to drive the peristaltic pump head to rotate according to the rotational force generated by the peristaltic pump motor.

[0070] The peristaltic pump motor is connected to the peristaltic pump body and is used to drive the peristaltic pump head to work;

[0071] The peristaltic pump head is provided with a snap-fit ​​device; the snap-fit ​​device is wound and connected to the infusion tube that passes through the inside of the peristaltic pump assembly.

[0072] The peristaltic pump head is used to rotate according to the rotational force generated by the peristaltic pump motor, thereby squeezing the infusion tube and the tubing connected thereto, so as to control the flow rate of the liquid in the infusion tube and the tubing connected thereto.

[0073] The infusion module also includes a bubble detector; the bubble detector is located inside the housing near the second connection end of the infusion tube, and is used to detect whether there are bubbles in the liquid after it has been cooled by the cooler. When bubbles are detected, the peristaltic pump motor is controlled to stop working and an audible alarm is sounded; the bubble detector is connected to the peristaltic pump motor.

[0074] The bubble detector detects whether air bubbles are present in the liquid cooled by the refrigerator by measuring the pressure values ​​in the horizontal and vertical directions of the infusion tube. The detection process includes:

[0075] The pressure values ​​of the infusion tubing in the horizontal and vertical directions are measured and represented as (X1, Y1);

[0076] Using a bubble discrimination model, the measured pressure values ​​in the horizontal and vertical directions are processed to obtain bubble discrimination results;

[0077] The bubble discrimination model is calculated as follows:

[0078] |X1-X0|≤a1,

[0079] |Y1-Y0|≤a2,

[0080] |(X0-X1)(Y0-Y1)|≤a3,

[0081] Wherein, (X0, Y0) are the pressure discrimination thresholds of the infusion tube in the horizontal and vertical directions; a1, a2, and a3 are the first bubble discrimination value, the second bubble discrimination value, and the third bubble discrimination value, respectively; when the measured pressure values ​​in the horizontal and vertical directions satisfy the above three inequalities, it is determined that the liquid cooled by the refrigerator contains bubbles; when the measured pressure values ​​in the horizontal and vertical directions do not satisfy the above three inequalities, it is determined that the liquid cooled by the refrigerator does not contain bubbles.

[0082] The third bubble discrimination value can be calculated based on the horizontal and vertical pressure values ​​measured over a period of time, and its calculation formula is as follows:

[0083]

[0084] Where a0 is a calculation constant, N is the number of pressure values ​​measured within a certain period of time, (X tk Y tk) represents the k-th horizontal and vertical pressure values ​​measured over a period of time.

[0085] The power supply circuit includes an external interface, a power supply cable, and an internal interface; the external interface and the internal interface are connected by the power supply cable; the external interface is located on the outside of the shell body; the power supply cable and the internal interface are located inside the shell body; the internal interface is connected to the liquid cooling module and the infusion module respectively, and is used to supply power to the liquid cooling module and the infusion module.

[0086] In one possible implementation, the housing further includes: a front cover, an air inlet, an air outlet, an operation display panel, and a carrying handle;

[0087] Inside the main body of the shell, there is a liquid cooling module and a power supply circuit;

[0088] The air inlet and air outlet are respectively located on the side wall of the housing body, and their positions correspond to the positions of the air outlet and air inlet of the liquid cooling module, respectively; the air inlet and air outlet are used for ventilation and heat dissipation of the liquid cooling module.

[0089] The front cover is hinged to the main body of the casing. The front cover has a heat insulation sleeve slot, an infusion stand slot, an infusion tube inlet hole, and an infusion tube outlet hole. The infusion stand slot is used to place the infusion stand when it is separated from the casing. The infusion tube enters the interior of the main body through the infusion tube inlet hole and exits the interior of the main body through the infusion tube outlet hole. A heat insulation sleeve is snapped into the heat insulation sleeve slot and is fitted onto the outer wall of the cooled infusion tube to keep the liquid inside the cooled infusion tube warm.

[0090] The operation display panel is located on the side of the main body near the front cover, and is used to install operation buttons and a digital display screen; the digital display screen is used to display temperature setting value, temperature measurement value, flow rate setting value, and flow rate measurement value; the operation buttons are used to input temperature and flow rate setting values ​​and adjustment values; the operation buttons and the digital display screen are connected.

[0091] The physical cooling and fluid replenishment device also includes a control circuit module; the control circuit module is connected to the peristaltic pump motor, compressor, operation buttons, digital display screen, temperature sensor, and bubble detector respectively; the temperature measurement value is obtained by the temperature sensor; the flow rate measurement value is obtained by the peristaltic pump motor; the control circuit module is used to receive the detection data from the temperature sensor and bubble detector, and send the detection data to the digital display screen for display; and to receive and process the information input by the infusion user through the operation buttons.

[0092] After receiving the temperature and flow rate setting values ​​sent by the operation buttons, the control circuit module parses and processes them to obtain temperature setting instructions and flow rate setting instructions, which are then sent to the compressor and peristaltic pump motors, respectively. Similarly, the control circuit module operates according to the same process for adjusting the temperature and flow rate values.

[0093] After the bubble detector detects a bubble, it sends the stop command to the control circuit module, which then generates a corresponding stop command and sends it to the peristaltic pump motor.

[0094] The carrying handle is located on the top surface of the shell body.

[0095] In one possible implementation, the infusion stand and the housing are detachably connected; when the infusion stand and the housing are separated, the infusion stand is placed in the infusion stand slot.

[0096] In one possible approach, the power supply circuit's external interface can be directly connected to a 220V power supply via a switching power supply line to obtain a regulated DC power supply. Alternatively, when there is no 220V power supply, it can be powered via a battery accessory.

[0097] In one possible implementation, the temperature of the liquid cooled by the liquid cooling module is 0–4°C.

[0098] Example 2:

[0099] This invention discloses a physical cooling and fluid replenishment device. In high humidity and high heat environments, the device is moved to the location of personnel in high temperatures. The front cover of the device is opened, the infusion stand is unfolded, an ambient temperature fluid bag is hung, the infusion tubing is connected, the infusion tubing is clamped onto the peristaltic pump, the infusion tubing is coiled around the cooler head, a bubble sleeve is clamped, an insulation sleeve is put on, air is expelled, a physical cooling and fluid replenishment device is started, and finally, low-temperature fluid infusion is performed via puncture.

[0100] The following is combined Figures 1-4 The present invention will be further described below.

[0101] This invention discloses a physical cooling and liquid replenishment device, including a shell, a liquid delivery module, a liquid cooling module, and a power supply circuit.

[0102] The housing can be stored and carried as a whole. The housing includes: the main body 1-1, the front cover 1-3, the air inlet 2-6, the air outlet 2-7, the operation display panel 1-15, and the carrying handle 1-2.

[0103] Specifically, the shell body 1-1 contains a liquid cooling module, a power supply circuit, and a peristaltic pump assembly, accommodating components that realize flow rate control and cooling functions.

[0104] The air inlet 2-6 and air outlet 2-7 are respectively disposed on the wall of the shell body 1-1 and correspond to the air inlet and air outlet of the refrigeration module for ventilation and heat dissipation of the liquid refrigeration module.

[0105] The front cover 1-3 is hinged to the shell body 1-1. The front cover 1-3 has a heat insulation sleeve groove 1-7, an infusion rack groove 1-6, an infusion tube inlet 1-16 and an infusion tube outlet 1-8. The infusion tube passes through the front cover and the shell body, where the liquid flow rate is controlled and the temperature is cooled.

[0106] Insulation sleeve 1-14 is snapped into the slot 1-7 of the insulation sleeve. When the physical cooling and liquid replenishment device is used, the insulation sleeve 1-14 is fitted onto the outer wall of the infusion tube after cooling to keep the liquid inside the infusion tube warm.

[0107] The operation display panel 1-15 is located on the side of the main body 1-1 near the front cover 1-3, and is used for operation buttons and digital display.

[0108] It should be noted that the operation display panels 1-15 are equipped with a digital tube display screen and operation buttons; the digital tube display screen is used to display temperature settings and measurement data, flow rate settings and measurement data; the operation buttons are used to input and adjust temperature and flow rate data.

[0109] The carrying handle 1-2 is placed on the top surface of the shell body 1-1.

[0110] The infusion module is used to inject liquid with a set flow rate and temperature into the user's body. Specifically, the infusion module includes an infusion stand 1-5 and a peristaltic pump assembly. The infusion stand 1-5 is placed in the infusion stand insertion hole 4-4 outside the shell and is used to support the infusion bag containing liquid at ambient temperature. The peristaltic pump assembly is placed inside the shell body and is snapped with an infusion tube to control the liquid flow rate in the infusion tube. The infusion tube connected to the bottom of the infusion bag is wound and connected to the liquid cooling module to inject the infusion liquid in the infusion bag into the user's body.

[0111] Specifically, the peristaltic pump assembly includes: a peristaltic pump body 2-8, a peristaltic pump motor 3-3, and a peristaltic pump head 1-11.

[0112] The peristaltic pump body 2-8 is placed inside the shell body 1-1.

[0113] The peristaltic pump motor 3-3 is located inside the peristaltic pump body 2-8 and is connected to the peristaltic pump head 1-11 located outside the peristaltic pump body, and is used to drive the peristaltic pump head 1-11 to work.

[0114] The peristaltic pump head 1-11 is snapped into the infusion tube and is used to control the ambient temperature and flow rate of the liquid inside the infusion tube.

[0115] It should be noted that the infusion module also includes a bubble detector 1-13. The bubble detector 1-13 is located inside the housing on one side of the infusion tube near the infusion needle. It is used to detect whether there are bubbles in the liquid after it has been cooled by the cooler head 1-12. When bubbles are detected, the peristaltic pump motor 3-3 is controlled to stop working and an alarm is triggered.

[0116] The infusion stand 1-5 is detachably connected to the housing; when the infusion stand 1-5 is separated from the housing, it is placed in the infusion stand slot 1-6.

[0117] The liquid cooling module is used to rapidly cool the liquid in the infusion tube at ambient temperature. The liquid cooling module includes a micro compressor 2-1, a capillary tube 2-2, a drying valve 2-3, a condenser 2-4, and a cooler 2-5.

[0118] The output end of the micro compressor 2-1 is connected to the input end of the condenser 2-4, and is used to pressurize the low-temperature, low-pressure gaseous refrigerant into the condenser to form a high-temperature, high-pressure state.

[0119] The output end of the condenser 2-4 is connected to the input end of the capillary tube 2-2 through the drying valve 2-3, which is used to dissipate heat from the refrigerant in a high temperature and high pressure state to form a low temperature and high pressure liquid refrigerant.

[0120] The capillary tube 2-2 is connected to the input end of the refrigerator 2-5 to throttle the liquid refrigerant, so that the low-temperature and high-pressure liquid refrigerant vaporizes and absorbs heat in the refrigerator 2-5 to form a low-temperature and low-pressure gaseous refrigerant, thereby achieving cooling of the refrigerator.

[0121] The output end of the cooler 2-5 is provided with a cooler head 1-12, and a liquid infusion tube is wound around the cooler head 1-12 for cooling and lowering the ambient temperature liquid in the liquid infusion tube. The cooler head 1-12 is equipped with a temperature sensor for displaying the temperature of the cooler in real time.

[0122] The liquid temperature after cooling by the liquid cooling module is 0-4℃. The power supply circuit interface can be directly connected to a 220V power supply via a switching power supply line to obtain a regulated DC power supply, or it can be powered by a battery accessory when there is no 220V power supply.

[0123] Example 3

[0124] This invention discloses a physical cooling and fluid replenishment device, comprising a shell body 1-1, a handle 1-2, a front cover 1-3, an infusion bag 1-4, an infusion stand 1-5, an infusion stand groove 1-6, an insulation sleeve groove 1-7, an infusion tube outlet 1-8, an instruction manual 1-9, an infusion tube 1-10, a peristaltic pump head 1-11, a cooler head 1-12, a bubble detector 1-13, an insulation sleeve 1-14, an operation display panel 1-15, and an infusion tube inlet 1-16. The shell body 1-1 provides the mounting structure and integrates the handle 1-2, which is hinged to the front cover 1-3. The front cover 1-3 integrates the infusion stand groove 1-6 and the insulation sleeve groove 1-7, and cooperates with the shell body 1-1 to provide the infusion tube outlet 1-8. The main body 1-1, near the front cover (1-3), features an operating instruction manual 1-9, a peristaltic pump head 1-11, a cooler head 1-12, a bubble detector 1-13, and an operation display panel 1-15. The infusion stand 1-5 can be removed from the infusion stand slot 1-6 and fixed to the infusion stand insertion hole 4-4 on the side of the main body 1-1. The infusion bag 1-4 is fixed to the top of the infusion stand. Gravity infusion is used. The infusion tube 1-10 enters the peristaltic pump head 1-11 through the infusion tube inlet 1-16. The infusion rate is controlled by the peristaltic pump speed. Then, the infusion tube 1-10 is coiled around the cooler head 1-12, cooling the liquid through heat conduction. The cooled liquid is then output to the puncture needle through the infusion tube outlet 1-8. To reduce cold loss, the insulation sleeve 1-14 can be removed from the insulation sleeve slot 1-7 and fitted onto the infusion tube at the output end. The operation display panel 1-15 integrates button and digital display functions. The operation instructions 1-9 describe the simple operation process.

[0125] This invention features liquid flow rate control and cooling functions. The main body 1-1 houses a micro compressor 2-1, a capillary tube 2-2, a drying valve 2-3, a condenser 2-4, a cooler 2-5, an air inlet 2-6, an air outlet 2-7, and a peristaltic pump body 2-8. Liquid replenishment speed control is primarily achieved by controlling the motor speed within the peristaltic pump body 2-8, thereby controlling the flow rate of the liquid squeezed by the peristaltic pump head 1-11. The cooling function is achieved by the micro compressor 2-1 pressing high-temperature, high-pressure gaseous refrigerant into the condenser 2-4. After heat dissipation in the condenser 2-4, a low-temperature, high-pressure liquid refrigerant is formed. This liquid refrigerant is dried by the drying valve 2-3 and then enters the capillary tube 2-2. After being throttled by the capillary tube 2-2, the low-temperature, low-pressure refrigerant in the cooler 2-5 expands and absorbs heat, thus achieving the cooling function of the cooler head 1-12. Heat dissipation inside the casing is achieved through natural air inlets 2-6 and fan-driven air outlets 2-7.

[0126] The working principle of this invention is as follows: A liquid bag containing a liquid for treating heatstroke is placed at the top of an infusion stand 3-1, with the liquid inside the bag at approximately the same temperature as the ambient environment. The liquid bag is positioned above the casing, causing the liquid inside to flow downwards due to gravity. Since an infusion tube is connected to the bottom of the liquid bag, the liquid flows from the liquid bag into the infusion tube and continues to flow along it. When the infusion tube becomes entangled with a peristaltic pump head 3-2, the peristaltic pump head 3-2, driven by a peristaltic pump motor 3-3, controls the speed of the peristaltic infusion tube, thereby controlling the flow. The liquid supply rate is controlled; then the liquid flows through the refrigerator 3-4, where it exchanges heat with the refrigerator head at the ambient temperature, and the heat of the liquid is absorbed by the expanding refrigerant. The low-temperature, low-pressure gaseous refrigerant flows into the micro compressor 3-5, where it performs work to form a high-temperature, high-pressure gaseous refrigerant. After entering the condenser 3-6 to dissipate heat, it becomes a low-temperature, high-pressure liquid refrigerant. After being dried by the drying valve 3-7, it enters the capillary tube 3-8 for throttling. The throttled low-pressure liquid refrigerant then enters the refrigerator 3-4 to expand and absorb heat. This cycle repeats to achieve the cooling purpose. Finally, the low-temperature liquid passes through the bubble detector 3-9 to ensure that there are no bubbles in the liquid. If bubbles are detected, the liquid supply is stopped and an alarm is triggered. The insulation jacket 3-10 is used to reduce cold loss and minimize heat exchange between the liquid in the infusion tube and the environment.

[0127] This invention features high integration. The infusion stand can be disassembled and stored in the front cover to form a small carrying case with dimensions of 300mm×300mm×200mm. It has a compact structure, is easy to operate, and is easy to carry. No other equipment is required except for an external power supply or battery. Without an external power supply, a single battery can guarantee at least 1 hour of infusion work.

[0128] Finally, it should be noted that the physical cooling and fluid replenishment device disclosed in the embodiments of the present invention is only a preferred embodiment of the present invention and is only used to illustrate the technical solution of the present invention, not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A physical cooling and liquid replenishment device, characterized in that, Includes a housing, an infusion module, a liquid cooling module, and a power supply circuit; The shell includes a rectangular parallelepiped-shaped shell body; The infusion module includes an infusion stand, a peristaltic pump assembly, an infusion bag, and an infusion tubing. The infusion stand is located outside the main body and supports the infusion bag containing liquid at ambient temperature. The peristaltic pump assembly is located inside the main body, and the infusion tubing passes through the inside of the peristaltic pump assembly. The tubing passing through the inside of the peristaltic pump assembly is movably connected to the peristaltic pump assembly via a snap-fit ​​device. The first connection end of the infusion tubing is connected to the infusion bag, and the second connection end of the infusion tubing is equipped with an injection device. The injection device is used to inject the cooled liquid in the infusion tube into the body of the user; the tubing near the second connection end of the infusion tube is wound and connected to the liquid cooling module. The liquid cooling module is located inside the housing and is used to cool the liquid in the infusion tube at ambient temperature. The power supply circuit is connected to the liquid cooling module and the infusion module, and is used to supply power to the liquid cooling module and the infusion module; The infusion module also includes a bubble detector; the bubble detector is located inside the shell body near the second connection end of the infusion tube, and is used to detect whether there are bubbles in the liquid after it has been cooled by the cooler. When bubbles are detected, the peristaltic pump motor is controlled to stop working and an audible alarm is sounded. The bubble detector detects whether air bubbles are present in the liquid cooled by the refrigerator by measuring the pressure values ​​in the horizontal and vertical directions of the infusion tube. The detection process includes: The pressure values ​​of the infusion tubing in the horizontal and vertical directions are measured and represented as (X1, Y1); Using a bubble discrimination model, the measured pressure values ​​in the horizontal and vertical directions are processed to obtain bubble discrimination results; The bubble discrimination model is calculated as follows: , , , Where (X0, Y0) are the pressure discrimination thresholds of the infusion tube in the horizontal and vertical directions; a1, a2, and a3 are the first bubble discrimination value, the second bubble discrimination value, and the third bubble discrimination value, respectively; when the measured pressure values ​​in the horizontal and vertical directions satisfy the above three inequalities, it is determined that the liquid cooled by the cooler contains bubbles; when the measured pressure values ​​in the horizontal and vertical directions do not satisfy the above three inequalities, it is determined that the liquid cooled by the cooler does not contain bubbles. The third bubble discrimination value can be calculated based on the horizontal and vertical pressure values ​​measured over a period of time, and its calculation formula is as follows: , Where a0 is a calculation constant, and N is the number of pressure values ​​measured over a period of time. , ) represents the k-th horizontal and vertical pressure values ​​measured over a period of time.

2. The physical cooling and liquid replenishment device as described in claim 1, characterized in that, The liquid refrigeration module includes a micro compressor, a capillary tube, a drying valve, a condenser, a cooler, a housing, an air inlet, and an air outlet; The micro compressor, capillary tube, drying valve, condenser, and cooler are all installed inside the housing; The output end of the micro compressor is connected to the input end of the condenser. The micro compressor is used to pressurize the low-temperature, low-pressure, gaseous refrigerant into the condenser to form a high-temperature, high-pressure liquid refrigerant. The drying valve is used to dry the high-temperature, high-pressure liquid refrigerant. The output end of the condenser is connected to the input end of the capillary tube through a drying valve. The condenser is used to dissipate heat from the high-temperature and high-pressure refrigerant to form a low-temperature and high-pressure refrigerant in a liquid state. The output end of the capillary tube is connected to the input end of the refrigerator. The capillary tube is used to throttle the refrigerant in liquid state to reduce the pressure of the refrigerant. The refrigerator is used to vaporize the low-temperature, high-pressure, liquid refrigerant and absorb heat to form a low-temperature, low-pressure gaseous refrigerant, and to use the low-temperature, low-pressure gaseous refrigerant to cool the liquid in the pipeline connected to the refrigerator in the liquid delivery pipe; the output end of the refrigerator is connected to the input end of the micro compressor. The air inlet is located on the housing near the input end of the micro compressor; the air outlet is located on the housing near the output end of the condenser.

3. The physical cooling and liquid replenishment device as described in claim 2, characterized in that, The cooler has a cooler head near the output end, and the infusion tube near the second connection end is wound and connected to the cooler head; the cooler head is equipped with a temperature sensor, which is used to measure and display the temperature of the cooler in real time.

4. The physical cooling and liquid replenishment device as described in claim 1, characterized in that, The peristaltic pump assembly includes: a peristaltic pump body, a peristaltic pump motor, and a peristaltic pump head; The peristaltic pump body is located inside the shell body and connected to the peristaltic pump head. The peristaltic pump body is used to drive the peristaltic pump head to rotate according to the rotational force generated by the peristaltic pump motor. The peristaltic pump motor is connected to the peristaltic pump body and is used to drive the peristaltic pump head to work; The peristaltic pump head is provided with a snap-fit ​​device; the snap-fit ​​device is wound and connected to the infusion tube that passes through the inside of the peristaltic pump assembly. The peristaltic pump head is used to rotate according to the rotational force generated by the peristaltic pump motor, thereby squeezing the infusion tube and the tubing connected thereto, so as to control the flow rate of the liquid in the infusion tube and the tubing connected thereto.

5. The physical cooling and liquid replenishment device as described in claim 1, characterized in that, The power supply circuit includes an external interface, a power supply cable, and an internal interface; the external interface and the internal interface are connected by the power supply cable; the external interface is located on the outside of the shell body; the power supply cable and the internal interface are located inside the shell body; the internal interface is connected to the liquid cooling module and the infusion module respectively, and is used to supply power to the liquid cooling module and the infusion module.

6. The physical cooling and liquid replenishment device as described in claim 1, characterized in that, The housing also includes: a front cover, an air inlet, an air outlet, an operation display panel, and a carrying handle; The air inlet and air outlet are respectively located on the side wall of the housing body, and their positions correspond to the positions of the air outlet and air inlet of the liquid cooling module, respectively; the air inlet and air outlet are used for ventilation and heat dissipation of the liquid cooling module. The front cover is hinged to the main body of the shell. The front cover is provided with a heat insulation sleeve slot, an infusion stand slot, an infusion tube inlet hole and an infusion tube outlet hole. The infusion stand slot is used to place the infusion stand when it is separated from the shell. A heat insulation sleeve is snapped into the heat insulation sleeve slot. The heat insulation sleeve is fitted onto the outer wall of the cooled infusion tube to keep the liquid inside the cooled infusion tube warm.

7. The physical cooling and liquid replenishment device as described in claim 6, characterized in that, The carrying handle is located on the top surface of the shell body; The infusion stand is detachably connected to the housing; when the infusion stand is separated from the housing, it is placed in the infusion stand slot.

8. The physical cooling and liquid replenishment device as described in claim 6, characterized in that, The operation display panel is located on the side of the main body near the front cover, and is used to install operation buttons and a digital display screen; the digital display screen is used to display temperature setting value, temperature measurement value, flow rate setting value, and flow rate measurement value; the operation buttons are used to input temperature and flow rate setting values; the operation buttons and the digital display screen are connected; the temperature measurement value is obtained by a temperature sensor; the flow rate measurement value is obtained by a peristaltic pump motor.

9. The physical cooling and liquid replenishment device as described in claim 8, characterized in that, The physical cooling and fluid replenishment device also includes a control circuit module; the control circuit module is connected to the peristaltic pump motor, compressor, operation buttons, digital display screen, temperature sensor, and bubble detector respectively; the control circuit module is used to receive the detection data from the temperature sensor and bubble detector, and send the detection data to the digital display screen for display; and to receive and process the information input by the infusion user through the operation buttons.

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