A hemostatic fixation device for naval combat injuries

Abstract

The present invention relates to the field of medical devices, and more specifically to a hemostatic fixation device for combat injuries at sea. The device comprises a frame, mounted with a hemostatic module, a fixation module, and an intelligent monitoring module. The frame comprises several split, angle-adjustable arc-shaped components, each connected in series via a flexible connector. The hemostatic module includes a gradient pressure airbag assembly, comprising a central pressurizing bladder and a peripheral stabilizing bladder, which is connected to a multi-stage air pump assembly mounted on one side of the frame. The intelligent monitoring module comprises a controller, an accelerometer, a pressure sensor, a microwave blood flow sensor, and a bioimpedance monitoring electrode, all of which are signal-connected to the controller. The present invention aims to overcome the shortcomings of existing technologies and provide an efficient, reliable, and intelligent solution for emergency treatment of combat injuries at sea.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a hemostatic fixation device for naval combat injuries. Background Art

[0002] In the field of battlefield first aid, especially in the treatment of naval injuries, the performance of hemostatic fixation devices is directly related to the survival rate of the wounded. The current mainstream technology mainly uses the following three types of devices:

[0003] Traditional bandaging devices, such as triangular bandages and ordinary bandages, rely on manual wrapping and pressure application. Elastic pressure devices, including elastic mesh caps and cylindrical tourniquets. Intelligent hemostasis devices.

[0004] Existing technologies have the following key flaws: traditional devices require complex bandaging techniques, and when the ship pitches at ±15°, the probability of the operation time being greater than 3 minutes is 65%; the pressure fluctuation range of conventional airbag hemostasis devices reaches ±28.7%, resulting in a secondary bleeding rate greater than 25%; the waterproof rating of existing products is generally lower than IPX4, and the probability of device failure under surge impact is 43.2%; 78% of active devices do not use antibacterial treatment, resulting in a 19.5% increase in wound infection rate; and the lack of active insulation design increases the incidence of hypothermia in the wounded by 15.8%.

[0005] Existing technologies are difficult to meet the following special requirements of naval warfare: maintaining effective hemostatic pressure when the ship's roll angular velocity is greater than 15° / s; high humidity (>90% RH), high salt spray (5mg / m 3 ) environment; taking into account both hemostatic efficacy and tissue perfusion balance control.

[0006] These issues severely limit the success rate of first aid for combat injuries at sea. In recent joint maritime exercises, preventable deaths due to hemostatic device failure accounted for 38.6%. Therefore, there is an urgent need to develop intelligent hemostatic fixation devices with environmental adaptability to meet the unique challenges of complex naval combat environments. Summary of the Invention

[0007] To solve the above problems, the present invention provides a hemostatic fixation device for naval combat injuries, aiming to overcome the shortcomings of the existing technology, especially under extreme conditions such as ship shaking, high humidity, and high salt spray. Through innovative skeleton design, gradient pressure airbag components, intelligent monitoring and adjustment system, and enhanced environmental adaptability, it provides an efficient, reliable and intelligent solution for first aid of maritime combat injuries, significantly improving the survival rate and treatment efficiency of the wounded.

[0008] To achieve the above objectives, the technical solution of the present invention is as follows: a hemostatic fixation device for naval combat injuries, comprising a frame on which a hemostatic module, a fixation module, and an intelligent monitoring module are mounted, the frame comprising a plurality of angle-adjustable arc-shaped components and flexible connectors, the arc-shaped components being connected in series via the flexible connectors to form a semi-annular support structure;

[0009] The hemostasis module includes a gradient pressure airbag assembly, which includes a central pressure bag and a peripheral stabilization bag. The central pressure bag and the peripheral stabilization bag are fixedly connected to the frame. The peripheral stabilization bag is located at the outer edge of the central pressure bag. The gradient pressure airbag assembly is connected to a multi-stage air pump assembly, which is installed on the side of the frame away from the gradient pressure airbag assembly.

[0010] The intelligent monitoring module includes a controller, an accelerometer, a pressure sensor, a microwave blood flow sensor, and a bioimpedance monitoring electrode. The accelerometer, pressure sensor, microwave blood flow sensor, and bioimpedance monitoring electrode are all installed on the outer wall of the gradient pressure airbag assembly. The multi-stage air pump assembly, accelerometer, pressure sensor, microwave blood flow sensor, and bioimpedance monitoring electrode are all connected to the controller signal.

[0011] The controller is used to adjust the multi-stage air pump assembly based on various data monitored in real time by the intelligent monitoring module:

[0012] When the pressure sensor detects that the wound contact pressure is less than 20 mmHg, the controller sends a power change instruction to the multi-stage air pump assembly connected to the central pressure bag, thereby adjusting the real-time power of the central pressure bag;

[0013] When the acceleration sensor detects that the real-time ship roll angular velocity is greater than 15° / s, the controller starts the multi-stage air pump assembly connected to the peripheral stabilization bag and adjusts the power of the multi-stage air pump assembly according to the real-time pressure data monitored by the pressure sensor;

[0014] When the microwave blood flow sensor detects a real-time bleeding rate greater than 50 ml / min, the controller starts the multi-stage air pump assembly connected to the central pressurization bag and adjusts the power of the multi-stage air pump assembly according to the real-time pressure data monitored by the pressure sensor;

[0015] When the bioimpedance monitoring electrode detects in real time that the tissue edema coefficient is greater than 35%, the controller starts all multi-stage air pump components and, based on the real-time pressure data monitored by the pressure sensor, sends a power increase instruction to the multi-stage air pump component connected to the peripheral stabilization bag, and sends a power decrease instruction to the multi-stage air pump component connected to the central pressurization bag.

[0016] Furthermore, the fixing module includes several suction cups, which are evenly distributed along the periphery of the frame. The fixing module also includes a bevel rack, one end of which is fixedly connected to one side of the frame, and the other side of the frame is provided with a limiting socket matching the bevel rack, and a limiting block is fixedly connected in the limiting socket.

[0017] Furthermore, the flexible connector is made of a composite of nickel-titanium alloy memory wire and medical silicone, and the flexible connector has a built-in humidity compensation spring, which is used to ensure that the preset angle can be maintained in a turbulent ship environment.

[0018] Furthermore, it also includes a waterproof component, which includes an edge self-sealing structure. The edge self-sealing structure is installed on the outer edge of the frame, and the edge self-sealing structure is composed of a liquid-expanding rubber strip and a photosensitive curing adhesive layer.

[0019] Furthermore, the intelligent monitoring module also includes a multispectral humidity sensor for monitoring real-time humidity data. The multispectral humidity sensor is connected to the controller signal. The controller receives the real-time humidity data monitored by the multispectral humidity sensor and analyzes it to determine whether the real-time humidity data is seawater infiltration or blood exudation.

[0020] When the controller analyzes the real-time humidity data and finds blood leakage, it triggers the pre-stored pressure compensation mechanism to send an alarm signal to the outside world.

[0021] Furthermore, it also includes an early warning module for issuing reminders based on alarm signals. The early warning module includes an indicator light and a buzzer. The indicator light is used to flash and emit light of different colors to indicate different early warning reminders. The buzzer is used to emit different alarm sounds. The indicator light and the buzzer are both connected to the controller signal. When the controller determines that the real-time monitoring data of the intelligent monitoring module is different from the preset limit value, the early warning module emits an audible and visual alarm signal.

[0022] Furthermore, it also includes a power module, which includes a battery pack. The side wall of the arc-shaped component is provided with a battery mounting slot matching the battery pack and a sliding cover for closing the battery mounting slot. The power module is electrically connected to the controller and the intelligent monitoring module.

[0023] Furthermore, the battery pack adopts a dual power redundancy design, including a main battery and a backup battery, both of which are independently connected to the controller; a shock-proof buffer pad is provided in the battery installation slot, and a waterproof sealing ring is embedded on the inside of the sliding cover.

[0024] Furthermore, the arc component includes an arc plate, the outer side wall of the arc plate is provided with a composite protective film, and the arc plate is composed of an antibacterial layer, a repair layer and a hydrophobic layer in sequence.

[0025] Furthermore, the pressure compensation mechanism is as follows:

[0026] When the controller detects through the intelligent monitoring module that the pressure applied by the hemostasis module deviates from the preset ideal hemostasis pressure range, the controller adjusts the working state of the multi-stage air pump assembly;

[0027] When the controller analyzes that the real-time humidity data indicates blood seepage and exceeds a preset threshold, the controller adjusts the working state of the multi-stage air pump assembly and sends an emergency alarm signal through the early warning module.

[0028] The above scheme has the following beneficial effects:

[0029] 1. Compared to existing hemostasis devices that lack real-time monitoring and adjustment capabilities, this solution's intelligent monitoring module monitors key data such as acceleration, pressure, blood flow, and tissue edema in real time. Based on this data, it automatically adjusts the operating state of the multi-stage air pump assembly to maximize hemostasis effectiveness. This intelligent adjustment method not only improves hemostasis efficiency but also reduces the operational burden on medical staff.

[0030] 2. Compared with the fixed hemostatic devices in the prior art, this solution utilizes a semi-circular support structure formed by a series connection of adjustable angle split arc components and flexible connectors, which can better adapt to naval wounds of different locations and shapes, thereby improving the flexibility and adaptability of hemostatic fixation. The design of the gradient pressure airbag assembly can automatically adjust the pressure according to the wound condition, achieving a more precise hemostatic effect. At the same time, the fixation module uses a suction cup and bevel rack design, which not only enhances the fit between the device and the injured limb, but also achieves stable fixation in the turbulent environment of the ship, effectively preventing the device from shifting or falling off.

[0031] 3. Compared to existing hemostatic devices with poor waterproofing, this solution effectively prevents seawater infiltration from damaging the wound and the device's interior by incorporating additional waterproof components, including a self-sealing edge structure and a multispectral humidity sensor. Furthermore, the multispectral humidity sensor accurately determines whether real-time humidity data indicates seawater infiltration or blood seepage, providing crucial decision-making support for medical personnel. When blood seepage is detected, a pressure compensation mechanism is triggered and an alarm signal is sent, further enhancing the device's safety and reliability.

[0032] 4. Compared to existing hemostasis devices with inadequate alarm and power management, this solution, by adding an early warning module and a power module with dual power redundancy, can promptly issue audible and visual alarm signals when abnormalities in real-time monitoring data are detected, prompting medical staff to take appropriate measures. Furthermore, the dual power redundancy design ensures continuous power supply in harsh environments, improving the device's stability and durability. Furthermore, the composite protective film design on the outer wall of the curved component enhances the device's antibacterial, repair, and hydrophobic properties, further improving its overall performance.

[0033] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is an axonometric view of an embodiment of the hemostatic fixation device for naval combat injuries of the present invention;

[0035] Figure 2 This is a front view of an embodiment of the hemostatic fixation device for naval combat injuries of the present invention;

[0036] Figure 3 This is an axonometric view of the skeleton in the embodiment of the hemostatic fixation device for naval combat injuries of the present invention;

[0037] Figure 4 This is a framework diagram of an embodiment of the naval combat wound hemostasis and fixation device of the present invention.

[0038] The figure marks in the drawings of the specification include: 1. curved plate; 2. flexible connector; 3. central pressurizing bag; 4. peripheral stabilizing bag; 5. oblique rack; 6. limiting socket; 7. edge self-sealing structure. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0042] The following is further described in detail through specific implementation methods:

[0043] Example 1:

[0044] As attached Figures 1 to 4 As shown: A hemostatic fixation device for naval combat injuries, comprising a frame, on which a hemostatic module, a fixation module, and an intelligent monitoring module are mounted. The frame comprises a plurality of split-type arc components with adjustable angles and flexible connectors (2), each of which is connected in series via the flexible connectors 2 to form a semi-annular support structure. The arc components comprise an arc plate 1, the outer wall of which is provided with a composite protective film, and the arc plate 1 is sequentially composed of an antibacterial layer, a repair layer, and a hydrophobic layer. The flexible connector 2 is made of a composite of nickel-titanium alloy memory wire and medical silicone, and has a built-in humidity compensation spring, which is used to ensure that the preset angle can be maintained in a turbulent ship environment.

[0045] The fixing module includes several suction cups (not shown in the figure), which are evenly distributed along the periphery of the skeleton to form a bionic suction cup array structure. The fixing module also includes a beveled rack 5 (in this embodiment, the beveled rack 5 is a titanium alloy beveled rack with a pitch of 2.5mm and a tooth angle of 55°). One end of the beveled rack 5 is fixedly connected to one side of the skeleton. The other side of the skeleton is provided with a limit socket 6 that matches the beveled rack 5. A limit block is fixedly connected to the limit socket 6 (in this embodiment, the limit block is made of a shape memory polymer). The hemostasis module includes a gradient pressure airbag assembly, which includes a central pressure bag 3 and a peripheral stabilization bag 4. The central pressure bag 3 and the peripheral stabilization bag 4 are installed on one side of the skeleton from the inside out. The gradient pressure airbag assembly is connected to a multi-stage air pump assembly (not shown in the figure), which is installed on the side of the skeleton away from the gradient pressure airbag assembly.

[0046] The intelligent monitoring module includes a controller, an acceleration sensor (in this embodiment, an ADXL355 nine-axis MEMS sensor is used), a pressure sensor (in this embodiment, a Tekscan FlexiForce A401 piezoelectric film sensor array is used), a microwave blood flow sensor (in this embodiment, a high-precision non-contact microwave blood flow monitoring sensor is used, which can penetrate the surface of the skin and monitor blood flow in real time) and a bioimpedance monitoring electrode (in this embodiment, an Ag / AgCl interdigital flexible electrode is used). The acceleration sensor, pressure sensor, microwave blood flow sensor and bioimpedance monitoring electrode are all installed on the outer wall of the gradient pressure airbag assembly, and the multi-stage air pump assembly, acceleration sensor, pressure sensor, microwave blood flow sensor and bioimpedance monitoring electrode are all connected to the controller signal.

[0047] The controller adjusts the multi-stage air pump assembly based on various data monitored in real time by the intelligent monitoring module: when the pressure sensor detects that the wound contact pressure is less than 20 mmHg, the controller adjusts the real-time power of the central pressure bag 3; when the acceleration sensor detects that the real-time ship roll angular velocity is greater than 15° / s, the controller starts the multi-stage air pump assembly connected to the peripheral stabilization bag 4 and adjusts the power of the multi-stage air pump assembly based on the real-time pressure data monitored by the pressure sensor; when the microwave blood flow sensor detects that the real-time bleeding rate is greater than 50 ml / min, the controller starts the multi-stage air pump assembly connected to the central pressure bag 3 and adjusts the power of the multi-stage air pump assembly based on the real-time pressure data monitored by the pressure sensor; when the bioimpedance monitoring electrode monitors that the tissue edema coefficient is greater than 35% in real time, the controller starts all multi-stage air pump assemblies and reduces the pressure generated by the central pressure bag 3 while increasing the pressure of the peripheral stabilization bag 4 based on the real-time pressure data monitored by the pressure sensor.

[0048] It also includes a power module, which includes a battery pack (an ER34615 lithium thionyl chloride battery pack (19Ah) is selected in this embodiment). The side wall of the arc-shaped component is provided with a battery mounting groove matching the battery pack and a sliding cover for closing the battery mounting groove. The power module is electrically connected to the controller and the intelligent monitoring module.

[0049] The specific implementation process is as follows: When a patient with a naval battle injury needs to stop bleeding, medical staff follow the steps below:

[0050] Slide open the sliding cover of the battery mounting slot to expose the battery installation position. Install the ER34615 lithium thionyl chloride battery pack (19Ah) and ensure that the battery pack matches the battery mounting slot. Close the sliding cover of the battery mounting slot to ensure that the battery pack is fixed and will not fall off. Hold both ends of the skeleton and stretch them outward. The flexible connector 2 made of nickel-titanium memory alloy automatically forms a preset curvature under the action of body temperature, forming a semi-annular structure that matches the diameter of the injured limb. Align the central pressure bag 3 with the center of the wound, and the petal-shaped structure of the peripheral stabilization bag 4 automatically fits the contour of the limb, thereby achieving precise positioning and effective compression of the wound and improving the efficiency of hemostasis.

[0051] Pressing the bionic suction cup array activates the vacuum adsorption function, which can still generate ≥5N / cm on the wet skin surface. 2The adsorption force is enhanced, thereby enhancing the fit between the device and the injured person's limbs and preventing the device from shifting or falling off in a bumpy ship environment. Then, after the bevel rack 5 is inserted into the limit socket 6, the shape memory polymer limit block hardens after contacting the injured person's body temperature (≥36°C), achieving self-locking within 0.5 seconds. At the same time, the skeleton will fit the patient's limbs more closely with the fixation process of the bevel rack 5, further strengthening the fixation effect of the device and preventing the device from shifting or falling off in a bumpy ship environment. The present invention can be applied to different parts of the patient, with the same performance, and can also be applied to different needs of height, weight and thinness.

[0052] The controller then controls the multi-stage air pump assembly to automatically initiate initial pressurization: the central pressure bladder 3 increases pressure at a rate of 20 mmHg / s to a baseline pressure of 50 mmHg; the peripheral stabilization bladder 4 generates a 2 Hz low-frequency pulsating pressure (fluctuating between 30 and 50 mmHg). This quickly establishes an effective compression environment for the wound, providing the necessary pressure support for subsequent hemostasis.

[0053] When the ADXL355 sensor detects that the ship's roll angular velocity is greater than 15° / s, the controller controls the multi-stage air pump assembly connected to the peripheral stabilization bag 4 to increase its pressure fluctuation frequency to 5Hz, thereby enhancing the fit and stability of the peripheral stabilization bag 4 to the patient's limbs, effectively reducing the risk of secondary injury to the wound caused by ship turbulence.

[0054] When the microwave blood flow sensor detects a bleeding rate greater than 50 ml / min, the controller controls the multi-stage air pump assembly connected to the central pressurization bag 3, adjusts it to 150 mmHg overpressure mode, and then reduces it to 120 mmHg for maintenance after 30 seconds. At the same time, the peripheral stabilization bag 4 is synchronously pressurized to 80 mmHg to form a restraint ring, thereby quickly and effectively controlling the bleeding and winning precious time for further treatment of the injured.

[0055] When the Tekscan sensor detects that the local pressure is greater than 200 mmHg, the controller adjusts the real-time power of the central pressurization bag 3, thereby avoiding unnecessary damage to the wounded due to excessive pressure and ensuring the safety and effectiveness of the hemostasis operation.

[0056] When the bioimpedance monitoring electrode detects that the tissue edema coefficient is greater than 35%, the controller automatically executes the anti-edema mode: the central pressure bag 3 gradually releases pressure to 80 mmHg at a rate of 10 mmHg / s, while the peripheral stabilization bag 4 is synchronously pressurized to 100 mmHg to form a ring-shaped restraint belt, and starts intermittent pulsation (1 Hz / 120 s cycle) to promote lymphatic return, thereby effectively alleviating the tissue edema of the wounded and promoting wound healing and recovery.

[0057] During the entire hemostasis and fixation process, the intelligent monitoring module continuously monitors the patient's vital signs and wound condition. Based on changes in the monitoring data, the controller automatically adjusts the output power and pressure settings of the multi-stage air pump assembly to ensure that the hemostasis and fixation device always remains in the best working condition.

[0058] When the patient's condition stabilizes or requires further treatment, medical staff can remove the hemostatic fixation device according to the operating instructions. The device will then be cleaned and disinfected as necessary for future use. The patient's usage and device performance will be recorded to provide a reference for subsequent optimization and improvement.

[0059] Example 2:

[0060] The difference from Example 1 is that it also includes a waterproof component, which includes an edge self-sealing structure 7. The edge self-sealing structure 7 is installed on the outer edge of the frame, and the edge self-sealing structure 7 is composed of a liquid-expanding rubber strip and a photosensitive curing adhesive layer.

[0061] The specific implementation process is as follows: When the hemostatic fixation device accidentally comes into contact with seawater, its built-in waterproof component immediately activates. The liquid-expandable rubber strip (2mm thick) rapidly absorbs the seawater and expands to 500% of its original volume within 30 seconds. This expansion process effectively fills the microscopic gap between the device and the patient's skin, preventing further penetration of seawater.

[0062] At the same time, the ship's emergency lighting (wavelength 405nm) illuminates the photosensitive curing adhesive layer. Within 60 seconds, the photosensitive curing adhesive layer triggers a photopolymerization reaction, forming a waterproof sealant approximately 0.1mm thick. This sealant further enhances the device's waterproof performance and ensures the safety of the internal electronic components and mechanical structure.

[0063] After the waterproof component is activated, the intelligent monitoring module continuously monitors humidity changes within the device. If an abnormally high humidity is detected, the controller will activate the early warning module to alert medical staff to take timely action.

[0064] Example 3:

[0065] The difference from Example 2 is that the intelligent monitoring module also includes a multi-spectral humidity sensor, which is connected to the controller signal. The controller analyzes the real-time humidity data monitored by the multi-spectral humidity sensor to determine whether the real-time humidity data is seawater infiltration or blood seepage; when the controller analyzes the real-time humidity data as blood seepage, it triggers the pressure compensation mechanism and sends an alarm signal.

[0066] The specific pressure compensation mechanism is as follows: when the controller detects through the intelligent monitoring module that the pressure applied by the hemostasis module deviates from the preset ideal hemostasis pressure range, the controller adjusts the working state of the multi-stage air pump assembly; when the controller analyzes that the real-time humidity data is blood exudation and exceeds the preset threshold, the controller adjusts the working state of the multi-stage air pump assembly and sends an emergency alarm signal through the early warning module.

[0067] The specific implementation process is as follows: the multispectral humidity sensor collects reflectance spectrum data in the 400-2500nm band. By identifying the characteristic peaks of seawater and blood (such as seawater characteristic peaks: 1450nm (OH stretching vibration), 1950nm (Cl- absorption); blood characteristic peaks: 415nm (Soret band), 540 / 575nm (hemoglobin)), it can distinguish between seawater infiltration and blood exudation.

[0068] When the real-time humidity value received by the controller is greater than 85% RH, the spectrum comparison algorithm calculates the correlation coefficient R 2 :

[0069] Assume that the real-time spectrum data is S real (λ i ), the reference spectral library is S ref (λ i ):

[0070] The characteristic wavelength set is:

[0071] S real =[S real (λ1),S real (λ2),…,S real (λ n )] T (λ∈[400,2500]nm)

[0072]

[0073] Define the diagonal weight matrix

[0074]

[0075] Introducing standardized processing:

[0076]

[0077] Define characteristic band coverage:

[0078] (Λ is the characteristic wavelength set)

[0079] Final correlation coefficient formula:

[0080]

[0081] Among them, W is the battlefield characteristic band enhancement, focusing on monitoring the seawater Cl- absorption peak (1450 / 1950nm) and the blood Soret band (415nm); α is the characteristic coverage coefficient, ensuring that the recognition rate remains ≥70% when the sensor is partially damaged.

[0082] According to R 2 The controller determines whether it is seawater seepage or blood seepage (R 2 >0.9 matches seawater characteristics; 0.7 < R 2 <0.9→trigger secondary detection (bioimpedance auxiliary judgment); R 2 <0.7 matches blood characteristics → perform pressure compensation).

[0083] If blood leakage is detected and exceeds a preset threshold, the controller immediately triggers the pressure compensation mechanism and increases the pressurization rate of the central pressure bag 3 to 50 mmHg / s to quickly control bleeding.

[0084] The peripheral stabilization capsule 4 is switched to a 3 Hz high frequency pulsation mode (pressure fluctuation ±5 mmHg) to enhance the stabilization effect on the tissues surrounding the wound. At the same time, the controller sends an alarm signal.

[0085] Example 4:

[0086] The difference from Example 3 is that it also includes an early warning module, which includes an indicator light and a buzzer. The indicator light is used to flash and emit light of different colors to indicate different early warning reminders, and the buzzer is used to emit different alarm sounds. The indicator light and the buzzer are both connected to the controller signal. When the controller determines that the real-time monitoring data of the intelligent monitoring module is different from the preset limit value, the early warning module emits an audible and visual alarm signal.

[0087] The specific implementation process is as follows: Preset three-level sound and light alarm signals:

[0088] Level 1 warning:

[0089] Trigger condition: When the intelligent monitoring module detects a pressure fluctuation exceeding ±10% and lasts for 10 seconds, a level 1 warning is triggered.

[0090] Response: The controller automatically calibrates the sensor and records the event. At the same time, the indicator light on the warning module starts flashing yellow and the buzzer emits an intermittent beep at 1kHz.

[0091] Level 2 warning:

[0092] Trigger condition: When the bleeding rate exceeds 80ml / min or the power reserve is less than 20%, the second level warning is triggered.

[0093] Response: The controller activates the backup hemostasis mode and sends a positioning signal to allow medical staff to quickly locate the injured person. Simultaneously, the warning module's indicator light turns orange and rotates, and the buzzer emits a continuous 2kHz beep.

[0094] Level 3 warning:

[0095] Trigger conditions: When it is detected that the injured person's vital signs disappear or the device fails completely, a level 3 warning is triggered.

[0096] Response measures: Help rescuers quickly locate the injured. The warning module's indicator light flashes red and the buzzer emits a 3kHz pulse beep.

[0097] Example 5:

[0098] The difference from Example 4 is that the battery pack adopts a dual power supply redundant design, including a main battery and a backup battery, and the main battery and the backup battery are independently connected to the controller; a shock-proof buffer pad is provided in the battery installation slot (the shock-proof buffer pad is made of silicone / carbon fiber composite material), and a waterproof sealing ring is embedded on the inside of the sliding cover (a fluororubber O-ring is selected in this embodiment).

[0099] The specific implementation process is as follows: Under normal conditions, the main battery (ER34615) provides a continuous current of 3.6V / 500mA to ensure the normal operation of the hemostatic fixation device. If the main battery voltage drops below 2.8V for 5 seconds, or if the device is immersed in seawater to a depth of more than 10cm, the backup battery (seawater-activated magnesium battery) automatically activates and connects to the circuit.

[0100] The battery compartment's shock-absorbing cushion (made of a silicone / carbon fiber composite material) effectively absorbs the impact of the ship's turbulence, protecting the battery pack from damage. A fluororubber O-ring embedded inside the sliding cover provides additional waterproofing, ensuring the battery compartment's seal remains intact even in extreme environments.

[0101] Continuous Monitoring and Maintenance: During use, the intelligent monitoring module continuously monitors the battery pack's charge level and voltage changes. If the battery level is low or the voltage is abnormal, the controller will activate the early warning module to remind medical staff to replace the battery or take appropriate measures.

[0102] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A hemostatic fixation device for naval combat injuries, comprising a frame on which a hemostatic module, a fixation module, and an intelligent monitoring module are mounted, characterized in that: The skeleton comprises a plurality of arc-shaped components with adjustable angles and flexible connectors (2), and the arc-shaped components are connected in series through the flexible connectors (2) to form a semi-annular support structure; The hemostasis module includes a gradient pressure airbag assembly, which includes a central pressure bag (3) and a peripheral stabilization bag (4). The central pressure bag (3) and the peripheral stabilization bag (4) are fixedly connected to the frame, and the peripheral stabilization bag (4) is located at the outer edge of the central pressure bag (3). The gradient pressure airbag assembly is connected to a multi-stage air pump assembly, and the multi-stage air pump assembly is installed on the side of the frame away from the gradient pressure airbag assembly. The intelligent monitoring module includes a controller, an accelerometer, a pressure sensor, a microwave blood flow sensor, and a bioimpedance monitoring electrode. The accelerometer, pressure sensor, microwave blood flow sensor, and bioimpedance monitoring electrode are all installed on the outer wall of the gradient pressure airbag assembly. The multi-stage air pump assembly, accelerometer, pressure sensor, microwave blood flow sensor, and bioimpedance monitoring electrode are all connected to the controller signal. The controller is used to adjust the multi-stage air pump assembly based on various data monitored in real time by the intelligent monitoring module: When the pressure sensor detects that the wound contact pressure is less than 20 mmHg, the controller sends a power change instruction to the multi-stage air pump assembly connected to the central pressure bag (3), thereby adjusting the real-time power of the central pressure bag (3); When the acceleration sensor detects that the real-time ship roll angular velocity is greater than 15° / s, the controller starts the multi-stage air pump assembly connected to the peripheral stabilizing bag (4), and adjusts the power of the multi-stage air pump assembly according to the real-time pressure data monitored by the pressure sensor; When the microwave blood flow sensor detects a real-time bleeding rate greater than 50 ml / min, the controller starts a multi-stage air pump assembly connected to the central pressurizing bag (3), and adjusts the power of the multi-stage air pump assembly according to the real-time pressure data monitored by the pressure sensor; When the bioimpedance monitoring electrode detects in real time that the tissue edema coefficient is greater than 35%, the controller starts all the multi-stage air pump components and sends a power increase instruction to the multi-stage air pump component connected to the peripheral stabilization bag (4) and a power decrease instruction to the multi-stage air pump component connected to the central pressurization bag (3) based on the real-time pressure data monitored by the pressure sensor.

2. The hemostatic fixation device for naval combat injuries according to claim 1 is characterized in that: The fixing module includes a plurality of suction cups evenly distributed along the periphery of the frame. The fixing module also includes an oblique rack (5), one end of the oblique rack (5) is fixedly connected to one side of the frame, and the other side of the frame is provided with a limiting socket (6) matching the oblique rack (5), and a limiting block is fixedly connected in the limiting socket (6).

3. The hemostatic fixation device for naval combat injuries according to claim 2, characterized in that: The flexible connector (2) is made of a composite of nickel-titanium alloy memory wire and medical silica gel, and the flexible connector (2) is built with a humidity compensation spring, which is used to ensure that a preset angle can be maintained in a turbulent ship environment.

4. The hemostatic fixation device for naval combat injuries according to claim 3 is characterized in that: It also includes a waterproof component, which includes an edge self-sealing structure (7). The edge self-sealing structure (7) is installed on the outer edge of the frame. The edge self-sealing structure (7) is composed of a liquid-expanding rubber strip and a photosensitive curing adhesive layer.

5. The hemostatic fixation device for naval combat injuries according to claim 4 is characterized in that: The intelligent monitoring module also includes a multispectral humidity sensor for monitoring real-time humidity data. The multispectral humidity sensor is connected to the controller signal. The controller receives the real-time humidity data monitored by the multispectral humidity sensor and analyzes it to determine whether the real-time humidity data is seawater infiltration or blood exudation. When the controller analyzes the real-time humidity data and finds blood leakage, it triggers the pre-stored pressure compensation mechanism to send an alarm signal to the outside world.

6. The hemostatic fixation device for naval combat injuries according to claim 5, characterized in that: It also includes an early warning module for issuing reminders based on alarm signals. The early warning module includes an indicator light and a buzzer. The indicator light is used to flash and emit light of different colors to indicate different early warning reminders; the buzzer is used to emit different alarm sounds. The indicator light and the buzzer are both connected to the controller signal. When the controller determines that the real-time monitoring data of the intelligent monitoring module is different from the preset limit value, the early warning module emits an audible and visual alarm signal.

7. The hemostatic fixation device for naval combat injuries according to claim 6, characterized in that: It also includes a power module, which includes a battery pack. The side wall of the arc-shaped component is provided with a battery mounting slot matching the battery pack and a sliding cover for closing the battery mounting slot. The power module is electrically connected to the controller and the intelligent monitoring module.

8. The hemostatic fixation device for naval combat injuries according to claim 7, characterized in that: The battery pack adopts a dual power redundancy design, including a main battery and a backup battery, both of which are independently connected to the controller; a shock-proof cushion is provided in the battery installation slot, and a waterproof sealing ring is embedded in the inside of the sliding cover.

9. The hemostatic fixation device for naval combat injuries according to claim 8, characterized in that: The arc-shaped component comprises an arc-shaped plate (1), the outer side wall of the arc-shaped plate (1) is provided with a composite protective film, and the arc-shaped plate (1) is composed of an antibacterial layer, a repair layer and a hydrophobic layer in sequence.

10. The hemostatic fixation device for naval combat injuries according to claim 9, characterized in that: The pressure compensation mechanism is as follows: When the controller detects through the intelligent monitoring module that the pressure applied by the hemostasis module deviates from the preset ideal hemostasis pressure range, the controller adjusts the working state of the multi-stage air pump assembly; When the controller analyzes that the real-time humidity data indicates blood seepage and exceeds a preset threshold, the controller adjusts the working state of the multi-stage air pump assembly and sends an emergency alarm signal through the early warning module.

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