Intelligent ice compress device and ice compress method for orthopedic nursing

Abstract

The invention discloses an intelligent ice compress device for orthopedic nursing and an ice compress method, and belongs to the field of medical instruments. The invention discloses an intelligent ice compress device for orthopedic nursing. The intelligent ice compress device comprises a coating device, a refrigeration device; the state detection device is used for detecting the blood flow velocity value of the patient and the skin pressure value of the affected part according to the input electric signal; the execution device is used for controlling the opening and closing angle of the electronic expansion valve and / or the compressor frequency regulating valve according to the input electric signal; and the control device is used for sending a control signal to the execution device according to the control signal sent by the state detection device so as to control the electronic expansion valve and / or the compressor frequency regulating valve. According to the intelligent ice compress device for orthopedic nursing and the ice compress method, the ice compress temperature and the surface pressure of an affected part are intelligently and dynamically adjusted according to the detected blood flow speed and skin swelling degree of a patient, and the pain of the patient is effectively relieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical equipment, in particular to an intelligent ice compress device for orthopedic nursing and an ice compress method. BACKGROUND

[0002] Orthopedics is one of the most common departments in hospitals, which mainly studies the anatomy, physiology and pathology of the skeletal muscle system, and uses drugs, surgery and physical methods to maintain and develop the normal form and function of the system. Orthopedic patients are generally injured by external force, and patients often suffer from great pain.

[0003] At present, hospitals often use ice bags for cold compress of patients. However, the ice bag is hard after freezing, and directly pressing on the wound will have an uncomfortable feeling, and it cannot completely contact the damaged part and postoperative wound. The existing ice compress devices on the market lack personalized pressure adjustment and environmental adaptability adjustment functions, and these devices are difficult to meet the specific needs of all patients in actual application. Therefore, how to overcome the above technical problems and develop a more intelligent and more humanized orthopedic nursing ice compress device has become a core problem to be solved. SUMMARY

[0004] The summary part of the present application is used to introduce the concept in a simple form, which will be described in detail in the specific embodiment part. The summary part of the present application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0005] To solve the technical problems mentioned in the background part, some embodiments of the present application provide an intelligent ice compress device for orthopedic nursing, comprising: a covering device for covering the affected part of the patient, the covering device is composed of a plurality of closely arranged cold compress units, the cold compress units are used for cooling the affected part; a refrigeration device, the refrigeration device comprises a condenser, a plurality of plate heat exchangers, a compressor, a refrigerant pipeline and a plurality of electronic expansion valves, wherein the condenser, the plate heat exchanger, the compressor, the refrigerant pipeline and the electronic expansion valve constitute a closed loop, a plurality of the cold compress units are provided with a plate heat exchanger and an electronic expansion valve, and the compressor comprises a compressor frequency regulating valve; the intelligent ice compress device for orthopedic nursing further comprises: a state detection device for detecting the blood flow speed value and the skin pressure value of the affected part according to the input electric signal; an execution device for controlling the opening and closing angle of the electronic expansion valve and / or the compressor frequency regulating valve according to the input electric signal; a control device for sending a control signal to the execution device to control the electronic expansion valve and / or the compressor frequency regulating valve according to the control signal sent by the state detection device.

[0006] Further, the covering device further comprises a plurality of air chambers, the air chambers are arranged in the cold compress unit, the air chambers are used for pressure adjustment of the affected area, the air chambers comprise an inflation pipeline and a plurality of air bag inflation electromagnetic valves, one end of the inflation pipeline is connected to an external air source, the other end of the inflation pipeline extends into the air chamber to inflate the air chamber, and the air bag inflation electromagnetic valves are arranged on the inflation pipeline in any air chamber; wherein, the control device sends a control signal to the air bag inflation electromagnetic valves according to the control signal sent by the state detection device to realize inflation and deflation of the air chamber.

[0007] Further, the state detection device comprises a pressure detection unit, the pressure detection unit is used for detecting the skin unit area pressure of the affected area; the control device sends a control signal to the air bag inflation electromagnetic valves and / or the execution device according to the control signal sent by the pressure detection unit.

[0008] Further, the state detection device further comprises a blood flow velocity detection unit, the blood flow velocity detection unit is used for detecting the blood flow velocity of the affected area; the control device sends a control signal to the air bag inflation electromagnetic valves and / or the execution device according to the control signal sent by the blood flow velocity detection unit.

[0009] Further, the intelligent ice compress device for orthopedic care further comprises: an interactive device, used for user operation to realize man-machine interaction operation; wherein, the control device sends a control signal to the execution device according to the control signal sent by the interactive device.

[0010] Further, the execution device further comprises a refrigerant flow rate control electromagnetic valve, used for controlling the flow rate of the refrigerant in the plate heat exchanger; the control device sends a control signal to the refrigerant flow rate control electromagnetic valve to realize control of the flow rate of the refrigerant.

[0011] Further, the intelligent ice compress device for orthopedic care further comprises: a temperature detection device, the temperature detection device is arranged in the air chamber and is used for detecting the temperature of the affected area; the control device sends a control signal to the execution device, the air bag inflation electromagnetic valve and the refrigerant flow rate electromagnetic valve according to the control signal sent by the temperature detection device.

[0012] As a first aspect of the present application, some embodiments of the present application provide an intelligent ice compress method for orthopedic care, which is executed by the intelligent ice compress device for orthopedic care described above, and the ice compress method comprises: In response to the control signal sent by the state detection device, the blood flow velocity value of the patient corresponding to the control signal is obtained; It is judged whether the blood flow velocity value of the patient corresponding to the control signal is greater than the set blood flow velocity threshold value; If yes, send a control signal of the electronic expansion valve opening angle reduction and / or the compressor frequency regulating valve opening angle increase to the execution device.

[0013] Further, the ice compress method further comprises: In response to the control signal sent by the state detection device, obtain the skin pressure value corresponding to the control signal; Determine whether the skin pressure value corresponding to the control signal is greater than the set skin pressure value; If yes, send a control signal of the air bag inflation electromagnetic valve opening angle increase to the execution device.

[0014] Further, the ice compress method further comprises: Determine whether the temperature value difference of the temperature detection device in each air chamber is equal to 0, when the difference is not equal to 0, mark the air chamber as a, mark the air pressure as m, mark the air chamber adjacent to the air chamber a as a1, mark the air pressure as m1, control the opening angle of the air bag inflation electromagnetic valve of the air chamber a1 so that the air pressure m1 of the air chamber a1 is equal to 3 / 4 of m.

[0015] The application has the beneficial effect that an intelligent ice compress device and method for orthopedic care are provided, which dynamically adjusts the ice compress temperature and the affected surface pressure according to the detection of the blood flow speed and the skin swelling degree, effectively relieves the patient's pain, and provides favorable conditions for subsequent treatment. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings constituting a part of this application are used to provide further understanding of the application, so that other features, purposes and advantages of the application become more apparent. The illustrative embodiment drawings of the application and their descriptions are used to explain the application, and do not constitute an improper limitation on the application.

[0017] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic, and the elements and elements are not necessarily drawn to scale.

[0018] In the drawings: Figure 1 is a signal transmission schematic diagram of an intelligent ice compress device for orthopedic care according to an embodiment of the application; Figure 2 is a step schematic diagram of an intelligent ice compress method for orthopedic care according to an embodiment of the application.

[0019] Meaning of reference numerals in the drawings: 100, state detection device; 110, pressure detection unit; 120, blood flow speed detection unit; 200, temperature detection device; 300. Control device; 400. Actuator; 410. Airbag inflation solenoid valve; 420. Refrigerant flow rate control solenoid valve; 430. Compressor frequency regulating valve; 440. Electronic expansion valve; 500. Interactive devices. Detailed Implementation

[0020] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0021] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0022] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0023] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0024] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0025] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] like Figure 1 As shown, a smart ice pack device for orthopedic care according to this application includes: A wrapping device for wrapping a patient's affected area, the wrapping device consisting of several closely arranged cold compress units for cooling the affected area; The refrigeration device comprises a condenser, several plate exchangers, a compressor, a refrigerant pipeline and several electronic expansion valves 440, wherein the condenser, the plate exchangers, the compressor, the refrigerant pipeline and the electronic expansion valves 440 form a closed loop, the plate exchangers and the electronic expansion valves 440 are arranged in the several cold compress units, and the compressor comprises a compressor frequency regulating valve 430. The intelligent cold compress device for orthopedic care further comprises: A state detection device 100100 is configured to detect blood flow speed values and skin pressure values of the patient according to input electrical signals. An execution device 400 is configured to control the opening and closing angles of the electronic expansion valves 440 and / or the compressor frequency regulating valve 430 according to input electrical signals. A control device 300 is configured to send control signals to the execution device 400 to control the electronic expansion valves 440 and / or the compressor frequency regulating valve 430 according to control signals sent by the state detection device 100.

[0027] Specifically, the intelligent cold compress device for orthopedic care is mainly used for cold compress treatment of the affected part of the patient within 48 hours after injury to relieve the patient's pain and slow down the further deterioration of the affected part. The cold compress device of the application is mainly used for leg fracture or arm fracture. The cold compress device comprises a wrapping device which is wrapped around the injured part of the patient. The wrapping device itself has a certain elasticity and can exert a certain pressure on the affected part after wrapping. A plurality of cold compress units with equal areas are closely arranged on the wrapping device. In a specific embodiment, each cold compress unit is a square block with a size of 1 cm x 1 cm. A plate exchanger composed of capillary pipelines is arranged in each cold compress unit to exchange the refrigerant of a refrigeration device with the temperature of the affected part to achieve the effect of cooling the affected part. The refrigeration device comprises a condenser, a compressor and a refrigerant pipeline connected with each plate exchanger. The refrigerant pipeline is filled with refrigerant. The compressor works to compress the refrigerant into a high-temperature and high-pressure gas. The gas absorbs heat from the outside through the condenser and is then transmitted through the refrigerant pipeline to the plate exchanger position, and then exchanges temperature with the affected part through the plate exchanger to achieve the effect of cooling the affected part. An electronic expansion valve 440 is arranged in each cold compress unit. The electronic expansion valve 440 is controlled to open and close by a control device 300. The control device 300 is a PLC controller in the prior art which can achieve this function. When the control device 300 controls the electronic expansion valve 440 at a certain position to be completely closed, the cold compress unit at that position is closed. When the electronic expansion valve 440 is opened, the refrigerant can enter the cold compress unit at that position, and then the cold compress unit at that position participates in the temperature exchange at the corresponding position.

[0028] More specifically, the ice compress device comprises a state detection device 100, which is a 64*64 flexible bioelectric impedance sensor array, which detects the skin pressure value and blood flow speed of the affected area by measuring the change in tissue electrical impedance, i.e. the swelling degree and blood flow change of the affected area. The control device 300 compares and judges the measured skin pressure value and blood flow speed of the affected area, and when the blood flow speed is greater than the set threshold value, it indicates that the blood flow at this place is abnormal, and this place needs to be cooled. When a fracture occurs, not only the bone ends are displaced, but also the surrounding blood vessels, muscles, ligaments, nerves and other soft tissues are damaged synchronously, which may cause, for example, blood vessel laceration, muscle fiber rupture, etc. These injuries will directly trigger the body's "local defense repair system". Damaged cells (such as vascular endothelial cells, muscle cells) rupture and release "damage-associated molecules" (such as histamine, prostaglandin, bradykinin); local nerve endings are stimulated, further amplifying the inflammation signal. These substances act as "alarms" and quickly activate the surrounding blood vessels and immune cells to start the inflammatory response. The first step of the inflammatory response is the change of blood vessels. Under the action of inflammation signals, the arterioles, venules and capillaries around the fracture will undergo two major changes. One is the dilation of blood vessels. The arterioles first contract and stop bleeding temporarily, then rapidly dilate, resulting in an increase in local blood flow (manifested as redness and heat at the injury site), which aims to allow more oxygen, nutrients and repair cells (such as white blood cells) to reach the injury site. The second is the increase in vascular permeability, and the "endothelial cell gap" of the capillary wall becomes larger (the normal gap is tight and only allows small molecules to pass through). Large molecules such as proteins and antibodies that cannot normally seep out will seep into the "interstitial space" outside the blood vessels through the enlarged gap. Therefore, an increase in blood flow speed at a certain place indicates that this place is the most serious area of the affected area, and cooling is urgently needed to reduce the blood flow speed. When the state detection device 100 detects abnormal blood flow speed at this place, the control device 300 sends a control signal to the electronic expansion valve 440 and the compressor frequency regulating valve 430 of the corresponding area, on the one hand, increases the compressor frequency regulating valve 430, so that the speed of the compressor pumping refrigerant is accelerated, and at the same time controls the opening and closing angle of the electronic expansion valve 440 to realize the phase change of the refrigerant and then adjust the refrigerant temperature. An increase in skin pressure at the affected area indicates that the accumulation of interstitial fluid in the area causes the skin to swell, and the area also needs to be cooled to relieve the patient's pain and reduce swelling at the affected area.

[0029] More specifically, the state detection device 100 comprises a pressure detection unit 110 for detecting the unit area pressure of the affected skin; the control device 300 sends control signals to the air bag inflation electromagnetic valve 410 and / or the execution device 400 according to the control signals sent by the pressure detection unit 110. The state detection device 100 further comprises a blood flow velocity detection unit 120 for detecting the blood flow velocity of the affected area; the control device 300 sends control signals to the air bag inflation electromagnetic valve 410 and / or the execution device 400 according to the control signals sent by the blood flow velocity detection unit 120.

[0030] In a specific embodiment, the covering device further comprises a plurality of air chambers, which are arranged in the cold compress unit and used for pressure adjustment of the affected area. The air chamber comprises an inflation pipeline and a plurality of air bag inflation electromagnetic valves 410. One end of the inflation pipeline is connected to an external air source, and the other end extends into the air chamber to inflate the air chamber. An air bag inflation electromagnetic valve 410 is arranged on the inflation pipeline in any air chamber. The control device 300 sends control signals to the air bag inflation electromagnetic valve 410 according to the control signals sent by the state detection device 100 to achieve inflation and deflation of the air chamber.

[0031] Specifically, each cold compress unit is provided with an air chamber composed of air bags. The air bags are arranged on one side of the plate exchange principle affected area. When the air bags are inflated, the air bags press the plate exchange to the affected area. The air bags do not hinder or affect the temperature exchange between the plate exchange and the affected area. After the air bags are inflated, a certain pressure can be applied to the affected area, and the pressure increases with the increase of the volume of the gas in the air bags. One end of the air bag is connected to the inflation pipeline, which functions to inflate and deflate the air bag. In a specific embodiment, the inflation pipeline is divided into multiple parts. The gas inlet pipeline and the gas outlet pipeline are arranged on both sides of the air bag, and electronic valves are arranged on the pipelines to open and close the pipelines. The air bag inflation electromagnetic valve 410 described in the present application is one of the aforementioned electronic valves, which is used to inflate and deflate the air bag in the air chamber under the control of the control device 300.

[0032] In a specific embodiment, the intelligent ice compress device for orthopedic care further comprises an interactive device 500 for user operation to realize human-computer interaction. The control device 300 sends control signals to the execution device 400 according to the control signals sent by the interactive device 500.

[0033] Specifically, the interactive device 500 is mainly used to provide a man-machine interactive interface to facilitate the user to set data, and also feedback to the user the data received by the control device 300. As a specific solution, the interactive device 500 can adopt a touch display with a processing chip and a memory, the touch screen of the touch display can be used for display and also for the user to input data by touch, and the user can realize man-machine interaction by operating the instructions on the touch screen. Using the touch screen as the carrier of the interactive module improves the intelligent degree of man-machine interaction and reduces the operation difficulty. The operator can realize the opening and closing of the ice compress device through the interactive device 500, and also can obtain the state information of the patient at any time.

[0034] In a specific embodiment, the execution device 400 further comprises a refrigerant flow rate control electromagnetic valve 420 for controlling the flow rate of the refrigerant in the plate heat exchanger; the control device 300 sends a control signal to the refrigerant flow rate control electromagnetic valve 420 to control the flow rate of the refrigerant. The intelligent ice compress device for orthopedic care further comprises a temperature detection device 200 arranged in the air chamber for detecting the temperature of the affected area; the control device 300 sends a control signal to the execution device 400 and the air bag inflation electromagnetic valve 410 and the refrigerant flow rate electromagnetic valve according to the control signal sent by the temperature detection device 200.

[0035] Specifically, the refrigerant flow rate control electromagnetic valve 420 is controlled by the operator from the interactive device 500, that is, the operator sets through the interactive device 500, the interactive device 500 sends a control signal to the control device 300, the control device 300 sends a control signal to the refrigerant flow rate control electromagnetic valve 420 after processing and judgment to adjust the flow rate of the refrigerant in the refrigerant pipeline, thereby effectively improving the comfort of the patient, that is, the temperature drop speed of the affected area is adjusted according to the reaction of different patients to adapt to the reaction time of different patients to coldness.

[0036] More specifically, the temperature detection device 200 is arranged in each air chamber, and the temperature detection device 200 can be integrated in the aforementioned 64*64 flexible bioelectrical impedance sensor array, or a temperature detection sensor can be separately arranged in the air chamber, mainly for detecting the temperature in the air chamber, one of the functions is to prevent frostbite accidents caused by the failure of the plate heat exchanger in a certain air chamber or the uneven temperature of the affected area caused by the failure of the plate heat exchanger to cause inconvenience to the subsequent treatment. The temperature value detected by the temperature detection device 200 is sent to the control device 300, and the control device 300 compares after receiving the control signal.

[0037] As Figure 2As shown, in one specific embodiment, another aspect of the present application also discloses an intelligent ice compress method for orthopedic care, executed by the intelligent ice compress device for orthopedic care described above, the ice compress method comprises: S1, in response to the control signal sent by the state detection device 100, the blood flow velocity value of the patient corresponding to the control signal is obtained, and the skin pressure value of the patient corresponding to the control signal is obtained; S2, judging whether the blood flow velocity value of the patient corresponding to the control signal is greater than the set blood flow velocity threshold value; S3, judging whether the skin pressure value of the patient corresponding to the control signal is greater than the set skin pressure value; S4, if the blood flow velocity value of the patient is greater than the set blood flow velocity threshold value, send the control signal of the opening angle reduction of the electronic expansion valve 440 and / or the opening angle increase of the compressor frequency regulating valve 430 to the execution device 400; if the skin pressure value of the patient is greater than the set skin pressure value, send the control signal of the opening angle increase of the air bag inflation electromagnetic valve 410.

[0038] In S1, the state detection device 100 sends the real-time state of the patient to the control device 300, and the control device 300 processes the signal of the state detection device 100 to obtain the blood flow velocity value and the pressure value of the patient, and then judges whether the ice compress operation is needed, the judgment process is shown in S2 and S3, when the blood flow velocity value of the patient is greater than the set blood flow velocity threshold value, it can be concluded that the position needs to be cooled, at this time, the electronic expansion valve 440 needs to be opened to the maximum to let the refrigerant enter the plate heat exchanger in the chamber, and then the opening angle of the electronic expansion valve 440 is further reduced slowly to phase change the refrigerant in the plate heat exchanger to increase the coldness of the refrigerant in the chamber, and increase the compressor rating to speed up the output of the refrigerant to realize rapid cooling of the affected area. Further, send the inflation signal to the air bag to make the air bag expand to press the affected area and further reduce the swelling of the affected area.

[0039] Further, in order to better reduce swelling, the control device 300 adjusts the pressure inside the air bag, when increasing the surface pressure of the swelling part, a slight incremental pressure from the distal end to the proximal end can squeeze the tissue gap and push the liquid to flow towards the heart, reducing the accumulation of liquid in the local area, thereby reducing swelling and slowing down the swelling rate of the patient. At the same time, it is also necessary to ensure that the area of the pressure area is larger than the cold compress area, so as to more effectively reduce the swelling of the swelling area. Specifically, the ice compress method further comprises: judging whether the difference value of the temperature value of the temperature detection device 200 in each air chamber is equal to 0, when the difference value is not equal to 0, marking the air chamber as a, marking the air pressure as m, marking the air chamber adjacent to the air chamber a as a1, marking the air pressure as m1, and controlling the opening and closing angle of the air bag inflation electromagnetic valve 410 of the air chamber a1 to make the value of the air pressure m1 of the air chamber a1 equal to 3 / 4 of m. That is, the cold compress units around the periphery of the ice compress area only provide pressure and do not participate in cold compress. The advantage of this is that the swelling part has an incremental pressure from the distal end to the proximal end, which can squeeze the tissue fluid and push the tissue fluid to flow back in a certain direction, thereby reducing the accumulation and reducing swelling.

[0040] The above description is only some of the preferred embodiments of the present disclosure and an explanation of the principles of the technology used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combinations of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the above features can be replaced with technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) to form technical solutions.

Claims

1. A smart ice pack device for orthopedic care, characterized in that: include: A wrapping device for wrapping a patient's affected area, the wrapping device consisting of several closely arranged cold compress units for cooling the affected area; A refrigeration device, comprising a condenser, several heat exchangers, a compressor, refrigerant pipes, and several electronic expansion valves, wherein the condenser, heat exchangers, compressor, refrigerant pipes, and electronic expansion valves form a closed loop, and several of the cooling units are equipped with heat exchangers and electronic expansion valves, and the compressor includes a compressor frequency regulating valve. The intelligent ice pack device for orthopedic care also includes: A status detection device is used to detect the patient's blood flow velocity and skin pressure at the affected area based on the input electrical signal. An actuator is used to control the opening and closing angles of the electronic expansion valve and / or the compressor frequency regulating valve according to the input electrical signal; A control device is used to send control signals to the actuator according to the control signals sent by the status detection device to control the electronic expansion valve and / or the compressor frequency regulating valve.

2. The intelligent ice pack device for orthopedic care according to claim 1, characterized in that: The covering device also includes several air chambers, which are overlapped with the cold compress unit. The air chambers are used to regulate the pressure on the affected area. Each air chamber includes an inflation pipe and several airbag inflation solenoid valves. One end of the inflation pipe is connected to an external air source, and the other end extends into the air chamber to inflate it. An airbag inflation solenoid valve is provided in each air chamber on the inflation pipe. The control device sends a control signal to the airbag inflation solenoid valve based on the control signal sent by the status detection device to inflate and deflate the air chamber.

3. The intelligent ice pack device for orthopedic care according to claim 2, characterized in that: The condition detection device includes a pressure detection unit, which is used to detect the pressure per unit area of ​​the skin at the affected site. The control device sends a control signal to the airbag inflation solenoid valve and / or the actuator based on the control signal sent by the pressure detection unit.

4. The intelligent ice pack device for orthopedic care according to any one of claims 1 to 3, characterized in that: The status detection device further includes a blood flow velocity detection unit, which is used to detect the blood flow velocity at the affected area. The control device sends a control signal to the airbag inflation solenoid valve and / or the actuator based on the control signal sent by the blood flow velocity detection unit.

5. The intelligent ice pack device for orthopedic care according to claim 4, characterized in that: The intelligent ice pack device for orthopedic care also includes: Interactive devices are used by users to achieve human-computer interaction. The control device sends a control signal to the execution device based on the control signal sent by the interaction device.

6. The intelligent ice pack device for orthopedic care according to claim 4, characterized in that: The actuator also includes a refrigerant flow rate control solenoid valve for controlling the flow rate of the refrigerant in the heat exchanger; The control device sends a control signal to the refrigerant flow rate control solenoid valve to control the flow rate of the refrigerant.

7. The intelligent ice pack device for orthopedic care according to claim 6, characterized in that: The intelligent ice pack device for orthopedic care also includes: A temperature detection device, which is disposed in the air chamber, is used to detect the temperature of the affected area; The control device sends control signals to the actuator, the airbag inflation solenoid valve, and the refrigerant flow rate solenoid valve based on the control signal sent by the temperature detection device.

8. A smart ice-packing method for orthopedic care, characterized in that: Performed by the intelligent ice-packing device for orthopedic care according to any one of claims 1 to 7, the ice-packing method comprises: In response to a control signal sent by a status detection device, the blood flow velocity value of the patient corresponding to the control signal is obtained; Determine whether the blood flow velocity value of the patient corresponding to the control signal is greater than the set blood flow velocity threshold; If so, a control signal is sent to the actuator to decrease the opening angle of the electronic expansion valve and / or increase the opening angle of the compressor frequency regulating valve.

9. The intelligent ice-packing method for orthopedic care according to claim 8, characterized in that: The ice application method also includes: In response to the control signal sent by the status detection device, the skin pressure value at the affected area corresponding to the control signal is obtained; Determine whether the skin pressure value at the affected area corresponding to the control signal is greater than the set skin pressure value; If so, a control signal to increase the opening angle is sent to the airbag inflation solenoid valve.

10. The intelligent ice-packing method for orthopedic care according to claim 8, characterized in that: The ice application method also includes: Determine whether the temperature difference between the temperature detection devices in each air chamber is equal to 0. If the difference is not equal to 0, mark the air chamber as 'a' and its air pressure as 'm'. Mark the air chambers adjacent to air chamber 'a' with a difference that is not equal to 0 as 'a1' and their air pressure as 'm1'. Control the opening and closing angle of the airbag inflation solenoid valve of air chamber 'a1' so that the air pressure m1 of air chamber 'a1' is equal to 3 / 4 of m.

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