Medical heating system, heating unit, and operation method for medical heating system

Abstract

A medical heating system, a heating unit (2), and an operation method for the medical heating system. The medical heating system comprises: at least one heating unit (2); a control device (1), wherein a plurality of identical mounting ports (101) are arranged on the control device (1); and a connector (3), connected to the heating unit (2), wherein the connector (3) can also be detachably connected to the mounting ports (101). When the medical heating system comprises a plurality of heating units (2), the connectors (3) on the different heating units (2) can be matched and connected to any of the mounting ports (101). When a connector (3) is connected to one of the mounting ports (101), the control device (1) can recognize the type of the heating units (2) on the connector (3) and provide an adapted power supply for the heating units (2). Different types of heating units (2) can be connected to any of the mounting ports (101) on the control device (1) by means of the connectors (3), and the interface standards are unified. The system is not only more convenient to use, but also facilitates a user's management.

Description

A medical heating system, a heating unit, and a method for operating the medical heating system.

[0001] Cross-references

[0002] This application incorporates, in its entirety, Chinese Patent Application No. 2024109258258, filed on July 10, 2024, entitled “A Medical Heating System, Heating Unit and Method of Operation of a Medical Heating System”, and Chinese Patent Application No. 2024216328299, filed on July 10, 2024, entitled “A Medical Heating System and Heating Unit”. Technical Field

[0003] This application relates to the field of medical equipment technology, and in particular to a medical heating system, a heating unit, and a method for operating the medical heating system. Background Technology

[0004] With the continuous advancement of medical technology, hospitals are equipped with various medical devices to monitor patients' vital signs in detail, such as the five vital signs: body temperature, blood pressure, pulse, respiration, and pain. Maintaining a constant body temperature is essential for ensuring the body's metabolism and normal life activities, while abnormal body temperature can cause metabolic disorders and even endanger life. Therefore, it is crucial in clinical practice to manage patients' body temperature and to promptly maintain warmth using warming units when body temperature is low.

[0005] Currently, hospitals use various types of heating units, such as blood transfusion and infusion warmers, electric heating blankets, air heating blankets, and foot heating blankets. Different heating units can only meet the heating needs of a specific situation. In actual clinical settings, it is often necessary to use different heating units simultaneously to address multiple heating problems. To facilitate the simultaneous management of multiple heating units, multiple devices need to be connected to a control device. However, because different heating units have different interface types, the control device needs to be equipped with multiple connection connectors, which is not only inconvenient to use but also increases the manufacturing cost of the control device.

[0006] Application content

[0007] In view of the above problems, this application is made in order to provide a medical heating system, a heating unit, and a method of operating the medical heating system that solves the above problems as much as possible.

[0008] This application provides a medical heating system, including:

[0009] At least one heating unit;

[0010] The control device is provided with multiple identical mounting ports;

[0011] A connector, which is connected to the heating unit, and which can also be detachably connected to the mounting port;

[0012] When the medical heating system includes multiple heating units, the connectors on different heating units can be matched and connected to any of the mounting ports. When the connector is connected to one of the mounting ports, the control device can identify the type of heating unit on the connector and provide an appropriate power supply to the heating unit.

[0013] Optionally, the connector includes a first connector and a second connector, which can be mated and connected.

[0014] The first connector can be inserted into the mounting port, and the second connector is located on the heating unit;

[0015] The first connector and the second connector include power contacts and data contacts. The power contacts are used to supply power to the heating unit, and the data contacts are used for data exchange between the heating unit and the control device.

[0016] Optionally, the heating unit is further provided with a first connector, and multiple heating units can be connected in series, with one of the heating units connected to the control device.

[0017] Optionally, it also includes an expansion dock, which has a second connector and a plurality of first connectors;

[0018] The second connector on the expansion dock can be connected to the first connector of any of the heating units, or can be connected to the first connector in any of the mounting ports on the control device. The plurality of first connectors on the expansion dock can be used to connect to a plurality of the same or different heating units.

[0019] In another embodiment of this application, a heating unit is also provided, which is suitable for the above-described medical heating system. The heating unit includes:

[0020] Equipment body;

[0021] A heating element, disposed on the device body, is used for heating and raising the temperature;

[0022] A control unit is located on the device body and is electrically connected to the heating unit;

[0023] The second connector is electrically connected to the control unit, and the second connector can be detachably connected to the adapted first connector.

[0024] The first connector can be detachably connected to any one of the multiple identical mounting ports on the control device; when the first connector, which is matched with the second connector, is connected to one of the mounting ports, the control unit is electrically connected to the control device; the control device can identify the type of heating unit connected to the mounting port and provide an appropriate power supply to the heating unit.

[0025] Optionally, the heating unit further includes multiple detection units, which are evenly arranged on the device body;

[0026] The detection unit is electrically connected to the control unit via a lead wire. The detection unit is used to detect the temperature of the heating unit, and the control unit adjusts the heating component to heat based on the temperature data detected by the detection unit.

[0027] Optionally, the control unit includes a microcontroller and an analog switch module, the analog switch module being electrically connected to the microcontroller, and the plurality of detection units being electrically connected to the analog switch respectively;

[0028] The microcontroller unit sequentially reads different detection signals from multiple detection units in a time-division multiplexing manner through the analog switch module.

[0029] Optionally, the control unit further includes a signal processing module, which is electrically connected to the microcontroller unit;

[0030] The microcontroller unit transmits the temperature data to the signal processing module. The signal processing module performs differential processing on the temperature data and then transmits the processed temperature data to the control device. The control device then obtains the temperature values ​​detected by each detection unit.

[0031] Optionally, the control unit further includes an identification module that stores identification information of the heating unit;

[0032] After the heating unit is electrically connected to the control device, the control device is electrically connected to the identification module and obtains the corresponding identification information.

[0033] In another embodiment of this application, a method for operating a medical heating system is also provided, applicable to the control device described in the above-mentioned medical heating system, the method comprising:

[0034] Based on the connection signal between the first connector and the mounting port, the identification information of the heating unit is obtained;

[0035] Based on the identification information, the current with the appropriate power is output to the corresponding first connector.

[0036] Optionally, the heating unit is equipped with multiple detection units for detecting temperature information in different areas of the heating unit; additionally, the working method of the medical heating system also includes:

[0037] Receives the temperature value signal detected by the detection unit;

[0038] Based on the temperature signal, the heating power of the heating unit is adjusted.

[0039] Optionally, the medical heating system includes a control unit, which further includes a signal processing module electrically connected to the microcontroller unit; and also includes:

[0040] Multiple detection units sequentially acquire detection signals corresponding to the temperature and send the detection signals to the microcontroller unit, which then converts the detection signals into temperature numerical signals.

[0041] The signal processing module receives the temperature numerical signal;

[0042] Based on a preset algorithm, the signal processing module performs differential processing on the temperature numerical signal;

[0043] The processed temperature value signal is output to the control device.

[0044] In the technical solution provided in this application, the control device has multiple identical mounting ports. Different types of heating units can be connected to any of the mounting ports on the control device via connectors. The mounting ports are standardized. When multiple heating units are used simultaneously, it is not only more convenient to use, but also easier for users to manage. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 is a perspective view of a control device provided in an embodiment of this application;

[0047] Figure 2 is a perspective view of a first connector provided in an embodiment of this application;

[0048] Figure 3 is a simplified structural diagram of a medical heating system provided in an embodiment of this application;

[0049] Figure 4 is a simplified structural diagram of another medical heating system provided in an embodiment of this application;

[0050] Figure 5 is a simplified structural diagram of another medical heating system provided in an embodiment of this application;

[0051] Figure 6 is a perspective view of another first connector provided in an embodiment of this application;

[0052] Figure 7 is a front view of a first connector provided in an embodiment of this application;

[0053] Figure 8 is a front view of a second connector provided in an embodiment of this application;

[0054] Figure 9 is a top view of a second connector provided in an embodiment of this application;

[0055] Figure 10 is a left view of a second connector provided in an embodiment of this application;

[0056] Figure 11 is a flowchart illustrating the working method of a medical heating system according to an embodiment of this application;

[0057] Figure 12 is a simplified structural diagram of a heating unit provided in an embodiment of this application;

[0058] Figure 13 is a schematic diagram of the structure of a control unit provided in an embodiment of this application. Detailed Implementation

[0059] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "including but not limited to." "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain error range.

[0060] Furthermore, in the embodiments of this application, "multiple" refers to two or more. Without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0061] With the development of medical technology, more and more medical equipment is being used to monitor patients' vital signs. Normal levels of the five major vital signs—body temperature, blood pressure, pulse, respiration, and pain—are essential for maintaining the body's metabolism and normal life activities. Because abnormal body temperature can cause metabolic disorders and even endanger life, monitoring patient body temperature is particularly important. Normal core body temperature is 36.5℃~37.5℃, and body surface temperature is around 33℃. Core body temperature refers to the temperature of vital organs deep within the body, corresponding to body surface temperature, with a temperature gradient of approximately 2℃~4℃ between the two. Perioperative hypothermia, also known as accidental perioperative hypothermia, is a phenomenon where the body's core body temperature falls below 36℃ due to various reasons during the perioperative period. It should be distinguished from controlled hypothermia for medical purposes. Nowadays, we have the necessary conditions to implement perioperative temperature management. For example, we can measure the patient's temperature in real time using monitoring equipment, and use a heating unit to keep the patient warm when their temperature is low, preventing it from dropping to a dangerous level.

[0062] However, existing heating units are usually used in conjunction with control equipment for centralized management. These heating units are typically pluggable to the control equipment via electrical connectors. However, different heating units have different voltages, power ratings, and interfaces, requiring different fixed ports to be reserved on the control equipment, and the number of these ports must also be fixed. This approach is not only inconvenient to use but also increases the manufacturing cost of the control equipment. To address these issues, this application provides a medical heating system and connector.

[0063] Referring to Figures 1 to 3, one embodiment of this application provides a medical heating system, which includes at least one heating unit 2, a control device 1, and a connector 3. The control device 1 has multiple identical mounting ports 101. The connector 3 is connected to the heating unit 2, and the connector 3 can also be detachably connected to the mounting ports 101. When the connector 3 is connected to one of the mounting ports 101 on the control device 1, an electrical connection between the heating unit 2 and the control device 1 can be achieved.

[0064] When the medical heating system includes multiple heating units 2, the connectors 3 on different heating units 2 can be matched and connected to any of the mounting ports 101. When the connector 3 is connected to one of the mounting ports 101, the control device 1 can identify the type of heating unit 2 on the connector 3 and provide a suitable power supply for the heating unit 2. The suitable power supply can be understood as a power supply whose voltage, current, or power meets the requirements of the heating unit 2.

[0065] Furthermore, in one embodiment of this application, a medical heating system is provided, comprising: at least one heating unit 2, a control device 1, and a connector 3. The connector 3 is used to connect the heating unit 2 to the control device 1. The connection between the heating unit 2 and the control device 1 includes not only a mechanical connection but also an electrical connection and a communication connection. The control device 1 is connected to one or more heating units 2 and is used to provide a suitable power supply to the heating units 2. When the heating unit 2 is connected to the control device 1, the control device 1 can identify the type of heating unit 2 and output electrical energy of corresponding power to ensure the normal operation of the heating unit 2.

[0066] To improve the convenience and flexibility of the medical heating system, the heating unit 2 is detachably connected to the control device 1 via a connector 3. Specifically, the connector 3 includes a first connector 31 and a second connector 32, which can be connected. At least one first connector 31 is located in the mounting port 101 of the control device 1, and the second connector 32 is located on the heating unit 2. When the heating unit 2 needs to be used, simply connect the second connector 32 on the heating unit 2 to the first connector 31 on the control device 1, or connect the heating unit 2 to any mounting port 101 on the control device 1 via the connector 3. After recognizing the type of heating unit 2, the control device 1 can output appropriate electrical energy to provide the heating unit 2 with the necessary power for heating.

[0067] Referring to Figures 1 and 2, in one embodiment provided in this application, the first connector 31 is detachably connected to the control device 1. The control device 1 has multiple mounting ports 101 on its body, and the first connector 31 can be inserted into the mounting ports 101. When the first connector 31 is connected to the control device 1, the tail end of the first connector 31 is inserted into the device body, and the head end of the first connector 31 is located outside the device body, thereby facilitating the connection between the second connector 32 and the first connector 31. Specifically, any first connector 31 can be detachably connected to any mounting port 101, and any second connector 32 on any heating unit 2 can be connected to any matching first connector 31 in any mounting port 101. Multiple identical or different heating units 2 can be connected to the control device 1 in parallel through multiple first connectors 31. For example, multiple first connectors 31 on the control device 1 are respectively connected to a heating unit 2, and the control device 1 supplies power to multiple heating units 2 simultaneously in parallel.

[0068] In another embodiment, any first connector 31 can be detachably connected to any mounting port 101, but the second connectors 32 on different heating units 2 have matching first connectors 31, and the second connector 32 on a certain heating unit 2 can only be connected to the matching first connector 31. Multiple identical or different heating units 2 can be connected in parallel to the control device 1 through multiple matching first connectors 31.

[0069] To ensure that control device 1 supplies power to heating unit 2 and simultaneously receives data signals output by heating unit 2, connector 3 includes power contacts and data contacts. The power contacts supply power to heating unit 2, and the data contacts identify the type of heating unit 2. Specifically, first connector 31 and second connector 32 each include multiple power contacts and multiple data contacts. When first connector 31 and second connector 32 are connected, the multiple power contacts and multiple data contacts engage, thereby enabling power supply and data transmission between control device 1 and heating unit 2.

[0070] Furthermore, when the medical heating system includes multiple heating units 2, the second connectors 32 on different heating units 2 are identical. This can be understood as meaning that since the second connectors 32 on different heating units 2 are the same, different heating units 2 can be connected to the control device 1. When the control device 1 is equipped with multiple first connectors 31, the specifications of the multiple first connectors 31 are also the same, and any heating unit 2 can be arbitrarily connected to one of the compatible first connectors 31.

[0071] In the technical solution provided in this application, the second connector 32 on different types of heating units 2 is the same, and multiple identical first connectors 31 are detachably mounted on the control device 1. Any heating unit 2 can be arbitrarily connected to any first connector 31 on the control device 1. When the first connector 31 is connected to the second connector 32, the control device 1 can accurately identify different heating units 2, thereby providing the heating unit 2 with an appropriate power current. The structure and specifications of the first connector 31 and the second connector 32 are standardized, which not only makes them more convenient to use, but also allows multiple heating units 2 to arbitrarily select any first connector 31 for connection. In addition, the use of standardized connectors also facilitates the management of multiple heating units 2 by the user.

[0072] It should be noted that, for ease of use, the heating unit 2 also includes a cable 33. One end of the cable 33 is connected to the heating unit 2, and the other end is connected to the second connector 32. The cable 33 includes multiple wire cores, some of which are connected to the power contacts, and others are connected to the data contacts. The first interface on the control device 1 can be directly mounted on the control device 1, or it can be connected to the control device 1 via the cable 33.

[0073] Referring to Figures 4 and 5, in one embodiment provided in this application, the heating unit 2 is further provided with a first connector 31. Multiple heating units 2 can be connected in series, with one heating unit 2 connected to the control device 1. Specifically, the heating unit 2 is provided with a second connector 32 and at least one first connector 31. The second connector 32 is used to connect to the first connector 31 on the control device 1, while the first connector 31 on the heating unit 2 is used to connect to the second connector 32 on other heating units 2. It can be understood that multiple heating units 2 are connected in series, and then connected to the control device 1 through one of the heating units 2. This technical solution not only facilitates the arrangement and use of various heating units 2, but also facilitates the management of various heating units 2.

[0074] Multiple heating units 2 may be used in series simultaneously during use. The connector 3 between the heating unit 2 and the control device 1 will carry the power of all heating units 2. Therefore, in the technical solution provided in this application, the current power that the connector 3 can carry is configured according to the total power of all types of heating units 2.

[0075] The types of heating units 2 include, but are not limited to: blood transfusion and infusion warmers, electric heating blankets, air heating blankets, foot heating blankets, arm blankets, etc.

[0076] The medical heating system provided in this application will be described in detail below through specific usage scenarios. For example, the control device 1 is equipped with multiple first connectors 31 of the same specification. When a patient needs to use a blood transfusion and infusion warmer, the connector 3 on the blood transfusion and infusion warmer is simply connected to any mounting port 101 on any control device 1. After the control device 1 recognizes that the heating unit 2 is a blood transfusion and infusion warmer, it can provide a suitable power supply to the blood transfusion and infusion warmer. When a patient needs to use a blood transfusion and infusion warmer, an electric heating blanket, and a foot warmer simultaneously, the connectors 3 of these heating units 2 are connected to different mounting ports 101 respectively. After the control device 1 recognizes the different types of heating units 2, it can output a suitable power supply through the connector 3 to meet the normal working needs of different heating units 2.

[0077] For example, if the control device 1 has a first connector 31, and the patient needs to use a blood transfusion / infusion warmer, an electric heating blanket, and a foot warmer simultaneously, firstly, connect the second connector 32 of the electric heating blanket to the first connector 31 in an installation port 101 of the control device 1. Then, connect the foot warmer in series to the first connector 31 on the electric heating blanket, and connect the blood transfusion / infusion warmer in series to the first connector 31 on the foot warmer. After detecting the number and type of the heating units 2, the control device 1 can output a power supply that matches the power output through the first connector 31, effectively preventing excessive power output.

[0078] Referring to Figure 5, in one embodiment provided in this application, the medical heating system further includes an expansion dock 4. The expansion dock 4 has a second connector 32 and multiple first connectors 31. The second connector 32 can be connected to the first connector 31 on any heating unit 2 or to the first connector 31 in any mounting port 101 on the control device 1. The multiple first connectors 31 on the expansion dock 4 can be used to connect to multiple heating units 2. Specifically, when the expansion dock 4 is connected to the control device 1, multiple heating units 2 can be connected in parallel to the control device 1 through the expansion dock 4. When the expansion dock 4 is connected to a heating unit 2, multiple other heating units 2, whether the same or different, can be connected in series to that heating unit 2 simultaneously.

[0079] To facilitate the management of the heating unit 2 connected to the control device 1, the control device 1 is equipped with a switch assembly. The first connector 31 on the control device 1 is connected in series with the switch assembly to control the power supply to and from the first connector 31. When the control device 1 has multiple first connectors 31, the control device 1 also includes multiple switch assemblies. Each first connector 31 is connected in series with a switch assembly, and the heating unit 2 connected to the control device 1 can be freely controlled through the switch assembly.

[0080] Referring to Figures 3, 12, and 13, a heating unit 2 is provided in one embodiment of this application. This heating unit is suitable for the aforementioned medical heating system. The heating unit 2 includes: a device body 20, a heating component, a control unit, and a second connector 32. The heating component is disposed on the device body 20 and can be used for heating when powered. The control unit is located on the device body 20 and is electrically connected to the heating unit. The second connector 32 is electrically connected to the control unit and can be detachably connected to a compatible first connector 31. The first connector 31 can be detachably connected to any one of a plurality of identical mounting ports 101 on the control device 1.

[0081] When the first connector 31, which is matched and connected to the second connector 32, is connected to one of the mounting ports 101, the control unit is electrically connected to the control device 1. The control device 1 can identify the type of heating unit 2 connected to the mounting port 101 and provide a suitable power supply to the heating unit 2.

[0082] In another embodiment, the heating unit 2 includes a control unit 18 and a heating component (not shown in the figure). The heating component is connected to the control unit, which controls the heating component to heat. The control unit is also connected to a first connector 31 and a second connector 32. Specifically, the control unit can control the heating component to start or stop heating. For example, when the temperature of the heating unit 2 is too high, the control unit can turn off the heating component or intermittently start and stop the heating component to ensure that the heating unit 2 can provide a suitable heating temperature.

[0083] The control unit connects to the power supply contacts and data contacts on connector 3. After the heating unit 2 is connected to the control device 1, the control unit can cut off or connect the power supplied by the power supply contacts, thereby starting or stopping the heating component. In addition, the control unit can also transmit various signals to the control device 1 through the data contacts, including the identification code (device ID) of the heating unit 2, so that the control device 1 can identify the type of heating unit 2.

[0084] Furthermore, when multiple heating units 2 are connected in series, the control units on the multiple heating units 2 are also connected in series at the same time. The control power supplies on different heating units 2 can transmit various signals to the control device 1 respectively. The control device 1 can determine the number and type of connected devices according to the identification code of the heating unit 2 sent by different control units, thereby outputting a power supply with appropriate power and effectively preventing the output power from being too high.

[0085] For each heating unit 2, in addition to heating, temperature measurement is also required to ensure that the heated part of the heating unit 2 reaches the set temperature. To ensure that the heating unit 2 can provide accurate heating temperature, it also includes multiple detection units 19. The detection units 19 are connected to the control unit 18 via leads to detect the temperature of the heating unit 2. The control unit 18 adjusts the heating component based on the temperature data detected by the detection units 19. When multiple heating units 2 are connected to the control device 1 simultaneously, the temperature data detected by the detection units 19 can be transmitted to the control device 1 in real time to meet the needs of data recording and backup. In addition, when multiple heating units 2 are connected in series or in parallel to the control device 1, the data between different heating units 2 can be shared, thereby achieving more precise control of the heating temperature by the heating unit 2.

[0086] However, since the entire heating part is often a large area, in order to ensure the uniformity of heating, multiple temperature sensors are often set on the heating unit 2. For the heating unit 2 with a large heating area, multiple detection units 19 are set on the heating unit 2. Different detection units 19 can detect the temperature of different areas on the heating unit 2. Multiple detection units 19 are connected in parallel to the control unit 18.

[0087] Referring to Figure 12, in one embodiment provided in this application, multiple detection units 19 and heating components are electrically connected to a control unit 18. The control unit 18 exchanges data with a control device via a connector, and the exchanged data includes at least temperature data and control signals. When multiple heating devices are connected in parallel to the control device, the control device can simultaneously acquire the temperature values ​​detected by multiple detection units 19 on multiple heating units 2. When multiple heating units 2 are connected in series to the control device, the control device can sequentially acquire the temperature values ​​detected by multiple detection units 19 on different heating units 2 through a series circuit. In addition, the control device can also control the heating components on different heating units 2, for example, by adjusting the heating temperature of the heating components.

[0088] Typically, multiple detection units 19 are measured by a control device 1. However, during the measurement process, each detection unit 19 has at least two connection terminals, and the output is an analog signal. When multiple detection units 19 are used simultaneously, the number of wires in the connecting cables increases, resulting in larger connection terminals. Furthermore, the large number of wires makes the signals susceptible to interference, leading to measurement deviations. To avoid this, the technical solution of this application sets a control unit 18 on each heating unit 2. The control unit 18 acquires the temperature data of each detection unit 19 and then sends it to the control device via a connector. Only two data cables are needed to send the temperature data of multiple detection units 19 to the control device, effectively avoiding the problem of numerous wires in the connecting cables. Taking a large medical heating blanket as an example, the heating blanket has five temperature sensors, which typically require ten cables to connect to the control device. However, with the control unit, the temperature sensors can be connected to the control unit individually, and the control unit can then be electrically connected to the control device via two cables. This also further optimizes the size of the connector.

[0089] The following is a detailed description of how the control unit 18 acquires temperature data from multiple detection units 19 and sends the temperature data to the control device 1.

[0090] Referring to Figure 13, in one embodiment provided in this application, the control unit 18 includes a microcontroller and an analog switch module. The analog switch module is electrically connected to the microcontroller, and multiple detection units 19 are respectively electrically connected to the analog switch. The microcontroller sequentially reads different detection signals from the multiple detection units 19 in a time-division multiplexing manner through the analog switch module. Specifically, the multiple detection units 19 are connected in parallel to the analog switch module. The analog switch module can sequentially read the detection signals from the multiple detection units 19, and then send the detection signals corresponding to the multiple detection units 19 to the microcontroller in a time-division multiplexing manner. The microcontroller is a single-chip microcomputer or a microcontroller, etc.

[0091] Normally, the control unit 18 only needs four wires to communicate with the control device, namely the heating power positive terminal (24V), the heating power negative terminal (GND), the signal positive terminal (485+), and the signal negative terminal (485-).

[0092] Time Division Multiplexing (TDM) uses different time periods of the same physical connection to transmit different signals, achieving the purpose of multiplexing. Therefore, the analog switch module and the control unit 18 only need two signal lines to communicate.

[0093] Furthermore, the control unit 18 also includes a signal processing module, which is electrically connected to the microcontroller unit. Typically, the detection unit 19 is a temperature sensor. When acquiring temperature in real time, the temperature sensor often outputs a detection signal in the form of a resistance value, and this detection signal is usually an analog signal. To facilitate the control device in reading the specific temperature value of each detection unit 19, the microcontroller unit also needs to convert the analog signal into a digital signal. Specifically, based on the detection signal, the microcontroller unit converts the detection signal into a temperature value signal, and then the signal processing module processes the temperature value signal.

[0094] Furthermore, since the analog switch module acquires the detection signals from different detection units 19 using a time-division multiplexing method, the temperature value signals need to be processed before outputting, so that the control device can obtain the corresponding temperature value signal from the detection unit 19. Specifically, the microcontroller transmits the temperature value signal to the signal processing module, which performs differential processing on the temperature value signal and then transmits the processed temperature value signal to the control device 1. The control device can then obtain the temperature value detected by each detection unit 19. The same technical solution is used for data detection and processing for different heating units 2.

[0095] It should be noted that when multiple heating units 2 are connected in series to the control device 1, the multiple heating units 2 can also communicate and exchange data with the control device 1 through time-sharing multiplexing.

[0096] Furthermore, the detection signal acquired by the analog switch module from the detection unit 19 cannot be directly sent to the microcontroller unit. It typically requires filtering to ensure accuracy. In one embodiment provided in this application, the control unit 18 further includes a filtering module. This filtering module is electrically connected to both the microcontroller unit and the analog switch module. Multiple detection signals read by the analog switch module are processed by the filtering module before being transmitted to the microcontroller unit.

[0097] Furthermore, the control unit 18 also includes a heating controller, which is electrically connected to both the microcontroller and the heating assembly. The heating controller can control not only the start and stop of the heating assembly but also its heating power. Specifically, based on the control signal from the control device, the microcontroller sends a working signal to the heating controller, which then controls the heating assembly to heat up according to the working signal. In one specific implementation, the microcontroller outputs a PWM (Pulse-Width Modulation) signal to control the MOSFET (Metal Oxide Semiconductor Field Effect Transistor) on the heating controller. A MOSFET is a semiconductor device that controls current through an electric field effect, thereby changing the current power output by the heating controller to the heating assembly.

[0098] As mentioned above, when the heating unit 2 is connected to the control device, the control device identifies the type of the heating unit 2. In one embodiment provided in this application, the control unit 18 further includes an identification module, which stores identification information of the heating unit 2. When the heating unit 2 is electrically connected to the control device, the control device is electrically connected to the identification module and obtains the corresponding identification information. The identification information includes, but is not limited to: the ID number of the heating device, the type number of the heating device, and the power value required by the heating device.

[0099] The microcontroller unit, analog switch module, signal processing module, filtering module, heating controller, and identification module mentioned above can be different electrical components interconnected by cables. Alternatively, they can be different circuit modules integrated onto a single circuit board.

[0100] Referring to Figures 6 to 10, in one embodiment of this application, a connector 3 is also provided, which is suitable for the aforementioned medical heating system. The connector 3 includes a first connector 31 and a second connector 32. The first connector 31 includes a first housing 51 and a plurality of first contacts 10. The second connector 32 includes a second housing 52 and a plurality of second contacts 15. The first housing 51 can be connected to the second housing 52, and the plurality of first contacts 10 are correspondingly connected to the plurality of second contacts 15. The plurality of first contacts 10 and the plurality of second contacts 15 respectively include power contacts and data contacts.

[0101] Furthermore, the first housing 51 of the first connector 31 is detachably connected to the control device 1. It can be detachably connected to the control device 1 by means of fasteners or by means of plug-in connection.

[0102] Referring to Figures 6 and 7, taking connector 3 with six contacts as an example, the six contacts are arranged in two rows and three columns. The two contacts in the first column are the positive terminals of the power contacts, the two contacts in the second column are the data contacts, and the two contacts in the third column are the negative terminals of the power contacts. It should be noted that this application does not specifically limit the number and arrangement of contacts on the first connector 31 and the second connector 32; the number and arrangement of contacts on the first connector 31 and the second connector 32 are mutually matched.

[0103] To facilitate the connection of the first connector 31 and the second connector 32, the first housing 51 is provided with a first mating part 8, and the second housing 52 is provided with a second mating part 14. The first mating part 8 can be connected with the second mating part 14. Specifically, the first and second connecting parts can ensure the accuracy of the mating of the first connector 31 and the second connector 32 and prevent the connector 3 from being connected in reverse.

[0104] In one specific embodiment, the plurality of first contacts 10 on the first connector 31 are insertion holes; the plurality of second contacts 15 on the second connector 32 are insertion posts, which can be inserted into the insertion holes to achieve connection between the first connector 31 and the second connector 32. The first housing 51 includes a first mating seat 7 and a first outer shell 6. A groove 11 is provided between the first inner shell and the first outer shell 6 to separate the first mating seat 7 and the first outer shell 6 from each other. The plurality of contacts (insertion holes) are provided on the first mating seat 7, and the first mating part 8 is located in the groove 11. The second housing 52 includes a second mating seat 13 and a second outer shell 12. The second outer shell 12 is located on the periphery of the second mating seat 13. The plurality of contacts (insertion posts) are provided on the second mating seat 13, and the second connecting part is located on the second outer shell 12. When the first connector 31 and the second connector 32 are connected, the plurality of insertion posts are inserted into the insertion holes, and the second outer shell 12 is inserted into the groove 11, and the first mating part 8 and the second mating part 14 are correspondingly connected.

[0105] To ensure a more secure connection between the first connector 31 and the second connector 32, and to improve the adaptability of the connector 3 in various environments, as shown in Figures 6 to 10, the outer wall of the first housing 51 is provided with multiple first limiting portions 9, and the outer wall of the second housing 52 is provided with multiple second limiting portions 16. The first limiting portions 9 and the second limiting portions 16 can be locked together. In one specific embodiment, two first limiting portions 9 are symmetrically provided on the outer wall of the first housing 51, and two second limiting portions 16 are symmetrically provided on the outer wall of the second housing 52. The first limiting portions 9 and the second limiting portions 16 are each provided with through holes 17. When the first connector 31 and the second connector 32 are connected, the first limiting portions 9 and the second limiting portions 16 on the same side are aligned. At this time, a U-shaped pin can be inserted through the through holes 17 on the first limiting portions 9 and the second limiting portions 16 respectively, thereby locking the first connector 31 and the second connector 32 together.

[0106] Referring to FIG. 1, for the convenience of users, the control device 1 further includes devices such as a plurality of control buttons, indicator lights, a display screen, a speaker, etc. To meet the linkage of multiple control devices 1, different control devices 1 can also be communicatively connected by wired or wireless means. For example, the control devices 1 used in different wards can be directly connected to the hospital's central control system or to devices in the cloud, so as to facilitate users to monitor uniformly at the terminal.

[0107] The display screen on the control device 1 can be used to display various information, such as the connection status of the heating unit, the power output to the heating unit, the type and quantity of the heating unit, the real-time temperature of the heating unit, prompt information, etc.

[0108] In a specific embodiment, the display screen can simultaneously display the types of devices corresponding to different first connectors 31, the specific power values output by different first connectors 31, and the real-time temperatures of different heating units 2 corresponding to different first connectors 31. When one of the heating units 2 is disconnected from the control device 1, the display screen can also display a prompt message, such as "The electric heating blanket at the first interface is disconnected". In addition, when the heating unit 2 is abnormal or the temperature is too high, the display screen can also display relevant prompt messages.

[0109] In another embodiment of the present application, an electrical connector (not shown in the figure) is also provided. This electrical connector is applicable to the control device and various heating units. The electrical connector includes a first connector and a second connector, and the second connector is detachably inserted into the first connector. The first connector is provided on the control device. The first connector includes a first housing and a plurality of first contacts, and the plurality of first contacts are provided in the insertion cavity of the first housing. The number of first contacts is greater than or equal to three. When the number of first contacts is three, one of the first contacts is the positive electrode, another first contact is the negative electrode, and the last first contact is the grounding electrode.

[0110] Three power supply terminals are provided at the tail end of the first housing for connecting to the power supply line, and the three power supply terminals are respectively connected to different first contacts. For example, the first power supply connection is connected to the first first contact, the second power supply terminal is connected to the second first contact, and the third power supply terminal is connected to the third first contact. The three different power supply terminals are respectively connected to different circuits on the control device (for example: the neutral line, the live line and the ground wire).

[0111] The second connector is located on the heating unit and is connected to the heating unit via a power cord. The first connector includes a second housing and multiple second contacts. The multiple second contacts are located within the insertion cavity of the second housing and are used to connect to different power cords on the heating unit. For example, some of the second contacts are used to connect to the neutral wire of the power cord, another part of the second contacts are used to connect to the live wire of the power cord, and the remaining second contacts are used to connect to the ground wire of the power cord. Of course, if a part of the heating unit does not require a ground wire, some of the second contacts can be connected to the neutral wire of the power cord, and another part of the second contacts can be connected to the live wire of the power cord. This application does not make specific limitations on this.

[0112] If the heating unit needs to exchange data with the control device, it can be achieved through power line communication (carrier communication). Both the heating unit and the control device are equipped with modems for signal analysis. Alternatively, some of the multiple second contacts on the second connector can also be connected to signal lines to enable communication between the heating unit and the control device. In addition, a wireless communication module can be installed on both the heating unit and the control device to achieve communication.

[0113] Furthermore, different second connectors have different numbers or lengths of second contacts. When a second connector is connected to a first connector, all or some of the second contacts connect to the first contact. Different numbers or lengths of second contacts can be configured for heating units requiring different voltages or power. For example, when a heating unit requires higher voltage or greater power, its second connector, when connected to the first connector, will have more second contacts connecting to the first contact, thus meeting the requirement of carrying higher voltage or power and effectively preventing overheating or damage to the electrical connector. Besides differentiating different second connectors by changing the number of second contacts, this can also be achieved by changing the length of the second contacts. For example, two heating units with different power ratings may have the same number of second contacts on their second connectors, but the second connector for the lower-power heating unit may have some shorter second contacts. When the first connector is connected to the second connector, some of the shorter second contacts cannot connect to the first contact; only the longer second contacts can connect to the first contact.

[0114] The technical solution provided in this application embodiment has different numbers or lengths of second contacts on different second connectors. When different second connectors are connected to the first connector, all or part of the second contacts are connected to the first contact. Thus, multiple heating units and control devices can be connected through one type of first connector. Only multiple first connectors of one type need to be configured on the control device, which not only facilitates the connection of multiple second connectors, but also makes it more convenient for users to use.

[0115] Furthermore, the cross-sectional shape of the insertion cavity of the first housing includes, but is not limited to, a circle, a square, or a polygon. The cross-sectional shape of the connector matches the cross-sectional shape of the insertion cavity of the first housing. The cross-sectional shape of the insertion cavity on the second housing is related to the arrangement shape of the multiple second contacts and the arrangement of the multiple first contacts. When the multiple first contacts are arranged in a ring, the cross-sectional shape of the insertion cavity on the second housing is circular.

[0116] To improve the neatness and compactness of the electrical interface, multiple first contacts and multiple second contacts are arranged in a circular array. Alternatively, when the electrical connector is square, multiple first contacts can also be arranged in a row.

[0117] To improve the safety performance of the first contact, the first contact includes an insulating shell and a metal inner sleeve. The metal inner sleeve is located inside the socket of the first contact, and the height of the metal inner sleeve is less than the height of the insulating shell. This can be understood as the metal inner sleeve being recessed within the insulating shell, thereby effectively preventing direct exposure of the metal and reducing the occurrence of accidents such as electric shock and short circuits.

[0118] In the technical solution of this application, different second connectors are set on different heating units, thereby enabling the control device to identify different heating units. However, when the number of heating units increases further, changing the number and length of the second contacts cannot meet the needs of use.

[0119] In one embodiment provided in this application, the first connector further includes a detection sensor, and different second connectors are provided with different sensing elements. The detection sensor can identify different sensing elements. Specifically, the second sensors on different heating units can be the same or different, but the sensing elements on different heating units are different. When the first connector is connected to the second connector, the detection sensor on the first connector can identify the specific data of the sensing element (e.g., the device ID number), thereby determining the type of heating unit, and then outputting the corresponding voltage or power. Because the maximum power of different heating units is different, the control device can calculate the currently achievable output power based on the heating unit to prevent the output power from being too high and exceeding the output capacity of the control device.

[0120] Referring to Figures 1, 2, and 11, in one embodiment of this application, a method for operating a medical heating system is also provided. This method is applicable to the control device of the medical heating system in any of the above embodiments, and includes the following steps:

[0121] S101, Based on the connection signal between the first connector and the mounting port, obtain the identification information of the heating unit;

[0122] S102, based on the identification information, output the current with the appropriate power to the corresponding first connector.

[0123] Since different heating units 2 operate at different power levels, after the heating unit 2 is connected to the control device 1, the control device 1 needs to promptly identify the type of heating unit 2 before outputting a current with the appropriate power. In step S101, after the first connector 31 and the second connector 32 are connected, and the first connector 31 is then connected to the mounting port 101 of the control device 1, the control device 1 can promptly receive the identification information of the heating unit 2. This identification information can be the identification ID of the heating unit 2. Specifically, this can be achieved by connecting the first connector 31 to the mounting port 101, simultaneously connecting the data contacts on the first connector 31 and the second connector 32, thereby connecting the control device 1 to the control unit on the heating unit 2. The connection signal between the first connector 31 and the second connector 32 will trigger the control unit to start, and then the control unit can send the identification ID of the corresponding heating unit to the control device 1. The control device 1 determines the type of the heating unit 2 based on the identification ID of the heating unit 2, and then outputs a current with the appropriate power for the heating unit.

[0124] When multiple first connectors 31 on the control device 1 are connected to different heating units 2, the control device 1 can identify the type of heating unit 2 connected to each first connector 31, and output the current with the power adapted to the heating unit 2 through the first connector 31 accordingly.

[0125] When multiple heating units 2 are connected in series to one of the first connectors 31 on the control device, each heating unit 2 can send its corresponding identification ID to the control device 1 through the series circuit. Then the control device 1 can determine the number and type of heating units 2 connected in series on the first connector 31, and then output a current that matches the total power.

[0126] In one embodiment provided in this application, the heating unit 2 is provided with multiple detection units, which are used to detect temperature information in different areas of the heating unit 2; in addition, the working method of the medical heating system further includes the following steps:

[0127] S103 receives the temperature value signal detected by the detection unit;

[0128] S104, Based on the temperature value signal, adjust the heating power of the heating unit.

[0129] As the ambient temperature and the patient's body temperature change continuously, the power of the heating unit 2 also needs to be constantly adjusted to maintain the temperature of the object being heated within the required range. When the heating unit 2 is heating, the detection unit can collect the temperature value of the heating unit 2 in real time and convert the temperature value into a temperature numerical signal. Then, through the circuit connected to the control device, the temperature numerical signal is output to the control device. The control device 1 can then adjust the current power output of the corresponding circuit or adjust the heating power of the heating unit 2 according to the temperature numerical signal.

[0130] When different heating units 2 are connected in parallel to different first connectors 31 of the control device 1, the control device 1 can receive the temperature signals of the heating units 2 corresponding to different first connectors 31, and control the current power of each circuit individually, so that each heating unit 2 can meet the usage requirements. When multiple different heating units 2 are connected in series to one first connector 31 of the control device 1, the control device 1 can also receive the temperature signal of each heating unit 2 through the series circuit, and output the appropriate power current accordingly.

[0131] Furthermore, the heating unit also includes a control unit, and multiple detection units are electrically connected to the control unit respectively; the control unit also includes a microcontroller and an analog switch module, the analog switch module is electrically connected to the microcontroller, and the multiple detection units are electrically connected to the analog switch respectively; step S103 "receiving the temperature value signal detected by the detection unit;" also includes the following steps:

[0132] S1031, the analog switch module sequentially reads the detection signals of multiple detection units;

[0133] S1032, the microcontroller acquires multiple detection signals sequentially through the analog switch module in a time-division multiplexing manner.

[0134] In the above steps, multiple detection units are connected in parallel on the analog switch module. The microcontroller can acquire the signals detected by the multiple detection units through the analog switch module in a time-division multiplexing manner. Using time-division multiplexing effectively reduces the number of cables and simplifies the structure of the control unit.

[0135] In one embodiment provided in this application, the control unit further includes a signal processing module, which is electrically connected to the microcontroller unit; the operation method of the medical heating system further includes the following steps:

[0136] S105, the plurality of detection units sequentially acquire detection signals corresponding to the temperature, send the detection signals to the microcontroller unit, and the microcontroller unit converts the detection signals into temperature numerical signals;

[0137] S106, the signal processing module receives the temperature value signal;

[0138] S107, Based on a preset algorithm, the signal processing module performs differential processing on the temperature value signal;

[0139] S108, output the processed temperature value signal to the control device.

[0140] In the above steps, the detection signal is mainly converted into a temperature value signal by the microcontroller unit. Usually, the detection signal is an analog signal, while the temperature value signal is a digital signal.

[0141] In the above text, the analog switch module sequentially acquires the detection signals detected by multiple detection units. The microcontroller then acquires multiple detection signals in a time-division multiplexing manner through the analog switch module. After converting the detection signals into temperature value signals, the signal processing module needs to perform differential processing on the multiple converted temperature value signals before outputting the processed temperature value signal. Only then can the control device obtain the temperature value signal detected by the corresponding detection unit.

[0142] In the technical solution provided in this application, multiple first connectors of uniform specifications can be set on the control device, and various different heating units are equipped with different second connectors. Any second connector can be arbitrarily plugged into any first connector, thereby enabling the control device to supply power to the heating unit. In specific applications, when a patient's body temperature is low and the patient is receiving intravenous infusion, a blood transfusion and infusion warmer is needed to warm the therapeutic fluid, thereby preventing the patient's body temperature from dropping further. The nurse only needs to arbitrarily plug the second connector of the blood transfusion and infusion warmer into any first connector on the control device, and the control device can automatically identify the device type and then provide a power supply with appropriate voltage or power. If the patient's body temperature drops further, the patient needs to use an electric heating blanket for warmth. The nurse only needs to plug the second connector of the electric heating blanket into an unused first connector on the control device. Since the electric heating blanket has a higher power, the first connector, after recognizing the second connector of the electric heating blanket, can automatically output the required voltage and power to meet the usage needs.

[0143] A standardized interface allows for more flexible use of heating units, makes it easier and faster to connect them to control devices, and also makes it easier for medical staff to manage various heating units in a unified manner.

[0144] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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. Such 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 this application.

Claims

1. A medical heating system, characterized in that, include: At least one heating unit; The control device is provided with multiple identical mounting ports; A connector, which is connected to the heating unit, and which can also be detachably connected to the mounting port; When the medical heating system includes multiple heating units, the connectors on different heating units can be matched and connected to any of the mounting ports. When the connector is connected to one of the mounting ports, the control device can identify the type of heating unit on the connector and provide an appropriate power supply to the heating unit.

2. The medical heating system according to claim 1, characterized in that, The connector includes a first connector and a second connector, which can be mated and connected. The first connector can be inserted into the mounting port, and the second connector is located on the heating unit; The first connector and the second connector include power contacts and data contacts. The power contacts are used to supply power to the heating unit, and the data contacts are used for data exchange between the heating unit and the control device.

3. The medical heating system according to claim 2, characterized in that, The heating unit is also provided with a first connector, and multiple heating units can be connected in series, with one of the heating units connected to the control device.

4. The medical heating system according to claim 3, characterized in that, It also includes an expansion dock, which has a second connector and multiple first connectors; The second connector on the expansion dock can be connected to the first connector of any of the heating units, or can be connected to the first connector in any of the mounting ports on the control device. The plurality of first connectors on the expansion dock can be used to connect to a plurality of the same or different heating units.

5. A heating unit, characterized in that, The medical heating system according to any one of claims 1 to 4, wherein the heating unit comprises: Equipment body; A heating element, disposed on the device body, is used for heating and raising the temperature; A control unit is located on the device body and is electrically connected to the heating unit; The second connector is electrically connected to the control unit, and the second connector can be detachably connected to the adapted first connector. The first connector can be detachably connected to any one of the multiple identical mounting ports on the control device; when the first connector, which is matched with the second connector, is connected to one of the mounting ports, the control unit is electrically connected to the control device; the control device can identify the type of heating unit connected to the mounting port and provide an appropriate power supply to the heating unit.

6. The heating unit according to claim 5, characterized in that, The heating unit also includes multiple detection units, which are evenly arranged on the device body. The detection unit is electrically connected to the control unit via a lead wire. The detection unit is used to detect the temperature of the heating unit, and the control unit adjusts the heating component to heat based on the temperature data detected by the detection unit.

7. The heating unit according to claim 6, characterized in that, The control unit includes a microcontroller and an analog switch module. The analog switch module is electrically connected to the microcontroller, and the plurality of detection units are respectively electrically connected to the analog switch. The microcontroller unit sequentially reads different detection signals from multiple detection units in a time-division multiplexing manner through the analog switch module.

8. The heating unit according to claim 7, characterized in that, The control unit further includes a signal processing module, which is electrically connected to the microcontroller unit. The microcontroller unit transmits the temperature data to the signal processing module. The signal processing module performs differential processing on the temperature data and then transmits the processed temperature data to the control device. The control device then obtains the temperature values ​​detected by each detection unit.

9. The heating unit according to claim 7, characterized in that, The control unit also includes an identification module, which stores identification information of the heating unit; After the heating unit is electrically connected to the control device, the control device is electrically connected to the identification module and obtains the corresponding identification information.

10. A method for operating a medical heating system, characterized in that, The control device applicable to the medical heating system as described in any one of claims 1 to 4, the method of operation includes: Based on the connection signal between the first connector and the mounting port, the identification information of the heating unit is obtained; Based on the identification information, the current with the appropriate power is output to the corresponding first connector.

11. The method of operating the medical heating system according to claim 10, characterized in that, The heating unit is equipped with multiple detection units for detecting temperature information in different areas of the heating unit; In addition, the working methods of medical heating systems also include: Receives the temperature value signal detected by the detection unit; Based on the temperature signal, the heating power of the heating unit is adjusted.

12. The method of operating the medical heating system according to claim 11, characterized in that, The medical heating system includes a control unit, which further includes a signal processing module and a microcontroller unit, the signal processing module being electrically connected to the microcontroller unit; it also includes: Multiple detection units sequentially acquire detection signals corresponding to the temperature and send the detection signals to the microcontroller unit, which then converts the detection signals into temperature numerical signals. The signal processing module receives the temperature numerical signal; Based on a preset algorithm, the signal processing module performs differential processing on the temperature numerical signal; The processed temperature value signal is output to the control device.

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