Heating control method, device and equipment in perioperative period

Abstract

The invention discloses a heating control method, device and equipment in the perioperative period. The method comprises the following steps that the core body temperature and the peripheral body temperature of a target patient are obtained; the peripheral body temperature is the whole body temperature of the target patient obtained based on infrared equipment scanning; the core body temperature is compared with a preset body temperature threshold value, and when the core body temperature is lower than the preset body temperature threshold value, a starting control signal of the heating equipment is output; the heating equipment is suitable for operating when the starting control signal is received so as to heat the target patient; and comparing the average peripheral temperature of each preset body part of the target patient with a preset body temperature threshold value, and outputting a heating rate control signal of the heating control equipment according to a difference value between the average peripheral temperature of each preset body part and the preset body temperature threshold value. According to the method, the heating device can be started in time to actively heat the low-body-temperature target patient, and effective, reliable and refined active heating control is achieved.

Description

Technical Field

[0001] This invention relates to the field of medical technology, and in particular to a perioperative heating control method, device, and equipment. Background Technology

[0002] During the perioperative period, surgical patients are highly susceptible to hypothermia due to the effects of anesthetic drugs, exposure to the surgical environment, cold infusions, cold blood transfusions, and low ambient temperatures. For a long time, perioperative hypothermia has not received the same level of attention as bleeding and infection because of its insidious onset and subtle initial symptoms. However, substantial clinical evidence shows that even mild hypothermia (34.5-36.0°C) can have a series of serious negative impacts on patient prognosis, including cardiovascular abnormalities, coagulation disorders, increased risk of surgical site infection, delayed drug metabolism, postoperative shivering, and delayed recovery for experienced surgeons. Therefore, with the increasing demands for refined and high-quality medical services in modern healthcare management, how to implement effective and reliable proactive warming measures to manage patient body temperature during the perioperative period has become an urgent problem to be solved. Summary of the Invention

[0003] To address these issues, this invention provides a heating control method, device, and equipment that controls the start and stop of the heating device based on core temperature and the heating rate of the heating device based on peripheral temperature. This method enables timely, effective, and multi-dimensional active heating when the target patient experiences hypothermia during the perioperative period, while also taking into account the patient's comfort.

[0004] Therefore, according to a first aspect, the present invention provides a perioperative temperature control method, comprising the following steps: acquiring the core body temperature and peripheral body temperature of the target patient; the peripheral body temperature is the whole-body temperature of the target patient acquired based on infrared device scanning;

[0005] The device compares the core body temperature with a preset body temperature threshold, and outputs a start control signal for the heating device when the core body temperature is lower than the preset body temperature threshold. The heating device is adapted to operate when the start control signal is received in order to heat the target patient.

[0006] The average peripheral temperature of each preset body part of the target patient is compared with the preset body temperature threshold, and the heating rate control signal of the heating control device is output based on the difference between the average peripheral temperature of each preset body part and the preset body temperature threshold.

[0007] Optionally, the step of comparing the average peripheral temperature of each preset body part of the target patient with a preset body temperature threshold, and outputting a heating rate control signal for the heating control device based on the difference between the average peripheral temperature of each preset body part and the preset body temperature threshold, specifically includes:

[0008] Determine whether there exists a preset body part whose average peripheral temperature differs from a preset body temperature threshold by a value greater than a first difference threshold.

[0009] When the difference between the average peripheral temperature of a preset body part and a preset body temperature threshold is greater than a first difference threshold, a high-speed control signal for the heating device is output; the heating device is suitable for operating in high-speed heating mode when it receives the high-speed control signal.

[0010] Optionally, the step of comparing the average peripheral temperature of each preset body part of the target patient with a preset body temperature threshold, and outputting a heating rate control signal for the heating control device based on the difference between the average peripheral temperature of each preset body part and the preset body temperature threshold, specifically includes:

[0011] Determine whether there exists a preset body part whose average peripheral temperature differs from a preset body temperature threshold by less than a second difference threshold.

[0012] When the difference between the average peripheral temperature of a preset body part and a preset body temperature threshold is less than a second difference threshold, a low-speed control signal for the heating device is output; the heating device is suitable for operating in a low-speed heating state when it receives the low-speed control signal.

[0013] Optionally, the core temperature is obtained based on a preset core temperature calculation model, using the spatiotemporal sequence data of the target patient's peripheral body temperature and the target patient's physiological dependence data.

[0014] Optionally, the physiologically dependent data may be at least two of the following: age-dependent data, gender-dependent data, body mass index-dependent data, underlying disease-dependent data, and metabolic state-dependent data.

[0015] Optionally, the core temperature is obtained based on at least one of the esophageal probe, nasopharyngeal probe, bladder probe, and pulmonary artery probe.

[0016] According to a second aspect, embodiments of the present invention provide a perioperative heating control device, comprising:

[0017] The body temperature acquisition module is used to acquire the core body temperature and peripheral body temperature of the target patient; the peripheral body temperature is the whole body temperature of the target patient acquired by scanning with an infrared device.

[0018] The first control module is used to compare the core body temperature with a preset body temperature threshold, and output a start control signal for the heating device when the core body temperature is lower than the preset body temperature threshold; the heating device is adapted to operate when the start control signal is received in order to heat the target patient;

[0019] The second control module is used to compare the average peripheral temperature of each preset body part of the target patient with the preset body temperature threshold, and output the heating rate control signal of the heating control device based on the difference between the average peripheral temperature of each preset body part and the preset body temperature threshold.

[0020] According to a third aspect, embodiments of the present invention provide a perioperative heating control device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; the memory stores computer instructions, and the processor executes the computer instructions to perform the method described in the first aspect or any embodiment of the first aspect.

[0021] According to a fourth aspect, embodiments of the present invention provide a computer-readable storage medium storing computer instructions for causing a computer to perform the methods described in the first aspect or any embodiment of the first aspect.

[0022] The technical solution provided by this invention has the following advantages:

[0023] The perioperative warming control method provided by this invention simultaneously acquires the peripheral and core temperatures of the target patient. It can compare the core temperature with a preset temperature threshold (normal body temperature) and output a control signal to activate the warming device when the core temperature falls below the preset threshold, indicating hypothermia. This allows for timely activation of the device for active warming of the target patient. Furthermore, it can adjust the warming rate based on the difference between the peripheral temperature of various preset body parts and the preset temperature threshold (significantly lower than normal body temperature) or slightly higher than normal body temperature. This enables multi-dimensional monitoring and control of core and peripheral temperatures, improving the patient's comfort during active warming and ultimately achieving timely, effective, reliable, and precise active warming control. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 A flowchart of one method of perioperative heating control method provided in an embodiment of the present invention;

[0026] Figure 2 for Figure 1 A flowchart illustrating specific steps of the S300 process;

[0027] Figure 3 for Figure 1 Another specific step flowchart for the S300;

[0028] Figure 4 A schematic diagram of a perioperative heating control device provided in an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the hardware structure of a perioperative heating control device provided in an embodiment of the present invention. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be noted that the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] Example 1

[0033] Figure 1 A flowchart of a perioperative heating control method according to an embodiment of the present invention is shown, specifically, as follows: Figure 1 As shown, the method may include the following steps:

[0034] S100: Obtain the core body temperature and peripheral body temperature of the target patient.

[0035] In this embodiment, peripheral body temperature refers to the whole-body temperature of the target patient obtained through infrared scanning. Specifically, the infrared device can be an infrared thermal imager.

[0036] As an optional specific implementation, the core body temperature of the target patient can be obtained by measuring at least one of the following: esophageal probe, nasopharyngeal probe, bladder probe, and pulmonary artery probe.

[0037] As an optional specific implementation, in order to expand the applicability of the perioperative warming control method in this embodiment to the type of surgery that does not require direct measurement of core body temperature during routine surgical procedures, or the type of surgery in which the measurement of core temperature may be interfered with during the operation, or the type of surgery that can monitor low body temperature in a timely manner and warm it up in a timely manner during the preoperative waiting period or during the transportation process, the core body temperature of the target patient in this embodiment can also be obtained based on the spatiotemporal sequence data of the target patient's peripheral body temperature and the target patient's physiological dependence data, based on a preset core temperature calculation model.

[0038] It should be noted that during the entire perioperative period of a surgery, there are both stages where core body temperature can be directly measured and stages where it cannot be directly measured. When core body temperature can be directly measured, the core body temperature of the target patient can be obtained by using a probe or based on a preset core temperature calculation model. When core body temperature cannot be directly measured, the core body temperature of the target patient is obtained based on a preset core temperature calculation model. The selection and conversion of the above two methods of core body temperature measurement according to the needs of specific application scenarios still fall within the protection scope of this embodiment.

[0039] In practice, the physiological dependence data of the target patient can be at least two of the following: age-dependent data, gender-dependent data, body mass index-dependent data, underlying disease-dependent data, and metabolic status-dependent data.

[0040] In practice, the preset core temperature measurement model can be either a ConvLSTM model or a spatiotemporal Transformer model. Specifically, taking the spatiotemporal Transformer model as an example, the input for model training is: a sequence of thermal images (T frames, each frame containing H*W*C), static physiological features C, and the true core temperature y; the training of the preset core temperature measurement model can be completed using the following steps:

[0041] Step A: For each frame of thermal image, extract a set of tokens (N tokens per frame, each in D dimensions) using a visual feature extractor (such as ViT).

[0042] Step B: Stack the tokens of frame T to form a sequence with a total number of tokens of T*N;

[0043] Step C: Add condition information: Project the condition vector (static physiological feature C) into D dimensions, copy it T times to obtain T condition tokens; at this time, the total number of tokens is T*(N+1).

[0044] Step D: Add location encoding: Add spatial location encoding and temporal location encoding to each token.

[0045] Step E: Input the entire token sequence into the Transformer encoder.

[0046] Step F: Take the representative vector of the condition tokens in the output sequence and regress it to the core temperature through a fully connected layer.

[0047] Step G: Calculate the loss and backpropagate to update the model parameters.

[0048] S200: Compares the core body temperature with the preset body temperature threshold, and outputs a start control signal for the heating device when the core body temperature is lower than the preset body temperature threshold.

[0049] In this embodiment, the heating device is adapted to operate upon receiving a start control signal in order to heat the target patient.

[0050] In practice, the preset body temperature threshold is the normal body temperature; for example, the preset body temperature threshold can be set to 36℃.

[0051] In specific implementation, the heating device can be an inflatable heating device; in specific implementation, the area covered by the inflatable heating blanket in the inflatable heating device can be set according to the surgical type of the target patient; in specific implementation, the inflatable heating blanket in this embodiment can also be set to zoned air supply so that it can heat and supply air to each preset body part of the target patient separately.

[0052] S300: Compares the average peripheral temperature of each preset body part of the target patient with the preset body temperature threshold, and outputs the heating rate control signal of the heating control device based on the difference between the average peripheral temperature of each preset body part and the preset body temperature threshold.

[0053] As one possible specific implementation method in this embodiment, such as Figure 2 As shown, step S300 above can specifically include the following steps:

[0054] S301: Determine whether there exists a preset body part whose average peripheral temperature differs from a preset body temperature threshold by a value greater than a first difference threshold.

[0055] In practice, the first difference threshold can be set according to the needs of the specific application scenario. As long as the average peripheral temperature of a preset body part is low (e.g., below 31°C), the height control signal can be output in time (correspondingly, the first difference threshold is 5°C).

[0056] S302: When the difference between the average peripheral temperature of a preset body part and a preset body temperature threshold is greater than the first difference threshold, output a high-speed control signal for the heating device.

[0057] In this embodiment, the heating device is adapted to operate in a high-speed heating state when it receives a high-speed control signal.

[0058] In specific implementation, when the heating device is an inflatable heating device and the inflatable heating blanket therein is a zoned air supply, the high-speed control signal here can be the high-speed control signal of the preset body part corresponding to the preset body part where the difference between the average peripheral temperature and the preset body temperature threshold is greater than the first difference threshold, so as to control the zone in the inflatable heating blanket corresponding to the preset body part to work in a high-speed heating state.

[0059] As one possible specific implementation method in this embodiment, such as Figure 3 As shown, step S300 above can also specifically include the following steps:

[0060] S303: Determine whether there exists a preset body part whose average peripheral temperature is less than a preset body temperature threshold and the difference between the two is less than a second difference threshold.

[0061] In practice, the second difference threshold can be set according to the needs of the specific application scenario. As long as the average peripheral temperature of a preset body part is high (such as higher than 35℃ or slightly higher than 36℃), the height control signal can be output in time (correspondingly, the second difference threshold is 1℃).

[0062] S304: When the difference between the average peripheral temperature of a preset body part and a preset body temperature threshold is less than a second difference threshold, output a low-speed control signal for the heating device.

[0063] In this embodiment, the heating device is adapted to operate in a low-speed heating state when it receives a low-speed control signal.

[0064] It should be noted that, depending on the specific application scenario, step S300 can be set to include only steps S301 and S302, or it can be set to include only steps S303 and S304, or it can be set to include steps S301, S302, S303 and S304.

[0065] This invention also provides a perioperative heating control device, such as... Figure 4 As shown, the device includes: a body temperature acquisition module 100, a first control module 200, and a second control module 300; wherein,

[0066] The body temperature acquisition module 100 is used to acquire the core body temperature and peripheral body temperature of the target patient; the peripheral body temperature is the whole body temperature of the target patient acquired based on infrared device scanning.

[0067] The first control module 200 is used to compare the core body temperature with a preset body temperature threshold, and outputs a start control signal for the heating device when the core body temperature is lower than the preset body temperature threshold; the heating device is adapted to operate when the start control signal is received in order to heat the target patient;

[0068] The second control module 300 is used to compare the average peripheral temperature of each preset body part of the target patient with the preset body temperature threshold, and output the heating rate control signal of the heating control device according to the difference between the average peripheral temperature of each preset body part and the preset body temperature threshold.

[0069] The specific functions of each module in this device can be understood by referring to the content of the above method, and will not be repeated here.

[0070] The perioperative warming control method and device in this embodiment simultaneously acquires the peripheral and core temperatures of the target patient. This allows for both comparison of the core temperature with a preset temperature threshold (normal body temperature) and outputting a start-up control signal for the warming device when the core temperature falls below the preset threshold, indicating hypothermia. Furthermore, the device can adaptively adjust the warming rate based on the difference between the peripheral temperature of various preset body parts and the preset temperature threshold (significantly lower than normal body temperature or slightly higher than normal body temperature). This multi-dimensional monitoring and warming control of core and peripheral temperatures enhances the patient's comfort during active warming, ultimately achieving timely, effective, reliable, and precise active warming control.

[0071] Example 2

[0072] This invention also provides a perioperative heating control device, such as... Figure 5 As shown, the device may include a processor 51 and a memory 52, wherein the processor 51 and the memory 52 may be connected via a bus or other means. Figure 5 Taking the example of a connection between China and Israel via a bus.

[0073] Processor 51 can be a central processing unit (CPU). Processor 51 can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or combinations of the above types of chips.

[0074] The memory 52, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as the program instructions / modules corresponding to the perioperative heating control method in Embodiment 1 of the present invention. The processor 51 executes various functional applications and data processing of the processor by running the non-transitory software programs, instructions, and modules stored in the memory 52, thereby implementing the perioperative heating control method in Embodiment 1 of the above method.

[0075] The memory 52 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created by the processor 51, etc. Furthermore, the memory 52 may include high-speed random access memory and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, the memory 52 may optionally include memory remotely located relative to the processor 51, and these remote memories may be connected to the processor 51 via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0076] The one or more modules are stored in the memory 52, and when executed by the processor 51, they perform the following: Figure 1 The perioperative heating control method in Example 1 shown.

[0077] For specific details regarding the perioperative heating control equipment mentioned above, please refer to the relevant documentation. Figure 1 The relevant descriptions and effects in Example 1 shown are for your understanding and will not be repeated here.

[0078] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk drive (HDD), or solid-state drive (SSD), etc.; the storage medium can also include combinations of the above types of memory.

[0079] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A perioperative heating control method, characterized in that, Includes the following steps: Acquire the core body temperature and peripheral body temperature of the target patient; the peripheral body temperature is the whole-body temperature of the target patient obtained based on infrared scanning. The core body temperature is compared with a preset body temperature threshold, and when the core body temperature is lower than the preset body temperature threshold, a start control signal for the heating device is output. The heating device is adapted to operate upon receiving the start control signal in order to heat the target patient; The average peripheral temperature of each preset body part of the target patient is compared with the preset body temperature threshold, and the heating rate control signal of the heating control device is output based on the difference between the average peripheral temperature of each preset body part and the preset body temperature threshold.

2. The perioperative heating control method according to claim 1, characterized in that, The step of comparing the average peripheral temperature of each preset body part of the target patient with the preset body temperature threshold, and outputting the heating rate control signal of the heating control device based on the difference between the average peripheral temperature of each preset body part and the preset body temperature threshold, specifically includes: Determine whether there exists a preset body part whose average peripheral temperature differs from the preset body temperature threshold by a value greater than a first difference threshold. When the difference between the average peripheral temperature of a preset body part and the preset body temperature threshold is greater than a first difference threshold, a high-speed control signal for the heating device is output; the heating device is adapted to operate in a high-speed heating state when the high-speed control signal is received.

3. The perioperative heating control method according to claim 1 or 2, characterized in that, The step of comparing the average peripheral temperature of each preset body part of the target patient with the preset body temperature threshold, and outputting the heating rate control signal of the heating control device based on the difference between the average peripheral temperature of each preset body part and the preset body temperature threshold, specifically includes: Determine whether there exists a preset body part whose average peripheral temperature differs from the preset body temperature threshold by less than a second difference threshold. When the difference between the average peripheral temperature of a preset body part and the preset body temperature threshold is less than a second difference threshold, a low-speed control signal for the heating device is output; the heating device is adapted to operate in a low-speed heating state when the low-speed control signal is received.

4. The perioperative heating control method according to claim 1, characterized in that, The core temperature is obtained based on a preset core temperature calculation model, using the spatiotemporal sequence data of the target patient's peripheral body temperature and the target patient's physiological dependence data.

5. The perioperative heating control method according to claim 2, characterized in that, The physiologically dependent data includes at least two of the following: age-dependent data, gender-dependent data, body mass index-dependent data, underlying disease-dependent data, and metabolic state-dependent data.

6. The perioperative heating control method according to claim 1, characterized in that, The core temperature is obtained based on measurements taken using any one of the esophageal probe, nasopharyngeal probe, bladder probe, and pulmonary artery probe.

7. A perioperative heating control device, characterized in that, include: The body temperature acquisition module is used to acquire the core body temperature and peripheral body temperature of the target patient; The peripheral body temperature is the whole-body temperature of the target patient obtained based on infrared scanning. The first control module is used to compare the core body temperature with a preset body temperature threshold, and output a start control signal for the heating device when the core body temperature is lower than the preset body temperature threshold. The heating device is adapted to operate upon receiving the start control signal in order to heat the target patient; The second control module is used to compare the average peripheral temperature of each preset body part of the target patient with the preset body temperature threshold, and output the heating rate control signal of the heating control device according to the difference between the average peripheral temperature of each preset body part and the preset body temperature threshold.

8. A perioperative heating control device, characterized in that, include: At least one processor; And a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to cause the at least one processor to perform the method described in any one of claims 1-6.

9. A computer-readable storage medium storing computer instructions thereon, characterized in that, When executed by the processor, this instruction implements the steps of the method described in any of claims 1-6.

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