Sea war wound hemostasis fixing device

Abstract

The invention relates to the field of medical instruments, in particular to a marine war wound hemostasis fixing device which comprises a framework, a hemostasis module, a fixing module and an intelligent monitoring module are mounted on the framework, the framework comprises a plurality of angle-adjustable split arc-shaped assemblies, and the arc-shaped assemblies are connected in series through flexible connecting pieces; the hemostasis module comprises a gradient pressure air bag assembly, the gradient pressure air bag assembly comprises a central pressurizing bag and a peripheral stabilizing bag, the gradient pressure air bag assembly is communicated with a multi-stage air pump assembly, and the multi-stage air pump assembly is installed on one side of the framework; the intelligent monitoring module comprises a controller, an acceleration sensor, a pressure sensor, a microwave blood flow sensor and a biological impedance monitoring electrode, and the multistage air pump assembly, the acceleration sensor, the pressure sensor, the microwave blood flow sensor and the biological impedance monitoring electrode are all in signal connection with the controller. The invention aims to overcome the defects in the prior art, and provides an efficient, reliable and intelligent solution for maritime war wound first aid.

Description

Technical Field

[0001] The invention relates to the field of medical instruments, 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 combat 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 bandages, such as triangular bandages and ordinary bandages, rely on manual wrapping and pressure application. According to the data from the Combat Wound Treatment Manual (JTSG-2017), in the turbulent environment of the ship, it takes an average of 182±35 seconds for a skilled military doctor to effectively stop bleeding, and the pressure stability CV value is >40%, and the secondary bleeding rate is 23.7%.

[0004] Elastic pressure device: including elastic mesh cap, cylindrical tourniquet, etc. A research test report in 2020 pointed out that the pressure fluctuation amplitude of such devices in simulated level 6 sea conditions reached ±32.5%, and when the ship's roll angular velocity was greater than 12° / s, the device displacement rate was as high as 41.8%.

[0005] Intelligent hemostasis equipment: For example, the electric tourniquet disclosed in patent US2018 / 0153563A1 shortens the operation time to within 90 seconds, but its waterproof rating is only IPX3, and the circuit failure rate in a high salt spray environment is as high as 37.4%.

[0006] The existing technology has the following key defects: traditional devices require complex bandaging techniques, and when the ship pitches at ±15°, the probability of an operation time greater than 3 minutes is 65%; the pressure fluctuation range of conventional airbag hemostasis devices is ±28.7%, resulting in a secondary bleeding rate of >25%; the waterproof level of existing products is generally lower than IPX4, and the probability of device failure under surge impact is 43.2%; 78% of the active devices do not use antibacterial treatment, resulting in a 19.5% increase in wound infection rate; at the same time, the lack of active thermal insulation design increases the incidence of hypothermia among the wounded by 15.8%.

[0007] For example, patent CN112107379A proposed a modular hemostasis concept, but its split design had a structural instability rate of 34.7% under ship vibration conditions. The 2021 report of the International Maritime Organization (IMSO) pointed out that existing technologies are difficult to meet the following special needs of naval warfare: maintaining effective hemostasis 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.

[0008] These problems have seriously restricted the success rate of emergency treatment for marine casualties. In recent joint maritime exercises, preventable deaths caused by failure of hemostatic devices accounted for 38.6%. Therefore, it is urgent to develop intelligent hemostatic fixation devices with environmental adaptability to cope with the special challenges of complex naval combat environments. Summary of the invention

[0009] To solve the above problems, the present invention provides a hemostatic fixation device for naval combat injuries, aiming to overcome the shortcomings of the prior art, 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 systems, and enhanced environmental adaptability, an efficient, reliable and intelligent solution is provided for first aid of maritime combat injuries, which significantly improves the survival rate of the wounded and the efficiency of treatment.

[0010] In order to achieve the above-mentioned purpose, 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 installed, the frame comprising a plurality of arc-shaped components with adjustable angles and flexible connectors (2), the arc-shaped components are connected in series through the flexible connectors to form a semi-annular support structure;

[0011] The hemostasis module comprises a gradient pressure airbag assembly, the gradient pressure airbag assembly comprises 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 (4) is located at the outer edge of the central pressure bag (4), 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;

[0012] The intelligent monitoring module includes a controller, an acceleration sensor, a pressure sensor, a microwave blood flow sensor and a bioimpedance monitoring electrode. The acceleration sensor, the pressure sensor, the microwave blood flow sensor and the bioimpedance monitoring electrode are all installed on the outer wall of the gradient pressure airbag assembly. The multi-stage air pump assembly, the acceleration sensor, the pressure sensor, the microwave blood flow sensor and the bioimpedance monitoring electrode are all connected to the controller signal.

[0013] The controller is used to adjust the multi-stage air pump assembly according to various data monitored in real time in the intelligent monitoring module:

[0014] 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;

[0015] 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, and adjusts the power of the multi-stage air pump assembly according to the real-time pressure data monitored by the pressure sensor;

[0016] 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 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;

[0017] 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 filter increase instruction to the multi-stage air pump component connected to the peripheral stabilization bag (4) and sends 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.

[0018] Furthermore, the fixing module includes a plurality of 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.

[0019] Furthermore, the flexible connector is made of a composite of nickel-titanium alloy memory wire and medical silicone, 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.

[0020] Furthermore, it also includes a waterproof component, which includes an edge self-sealing structure, which is installed on the outer edge of the frame and consists of a liquid-expanding rubber strip and a photosensitive curing adhesive layer.

[0021] Furthermore, the intelligent monitoring module also includes a multi-spectral humidity sensor for monitoring real-time humidity data, the multi-spectral humidity sensor is connected to the controller signal, and the controller receives and 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 infiltration;

[0022] When the controller analyzes the real-time humidity data and finds that it is blood leakage, it triggers the pre-stored pressure compensation mechanism to send an alarm signal to the outside world.

[0023] Furthermore, it also includes an early warning module for giving 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. Both the indicator light and the buzzer are 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.

[0024] 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 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.

[0025] Furthermore, the battery pack is designed with dual power redundancy, including a main battery and a backup battery, and both 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, and a waterproof sealing ring is embedded on the inside of the sliding cover.

[0026] 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.

[0027] Furthermore, the pressure compensation mechanism is as follows:

[0028] 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;

[0029] When the controller analyzes that the real-time humidity data is blood leakage 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.

[0030] The above scheme has the following beneficial effects:

[0031] 1. Compared with the hemostatic devices in the prior art that lack real-time monitoring and adjustment functions, the intelligent monitoring module of this solution can monitor key data such as acceleration, pressure, blood flow and tissue edema in real time, and automatically adjust the working state of the multi-stage air pump assembly according to these data, thereby ensuring the maximum hemostatic effect. This intelligent adjustment method not only improves the hemostatic efficiency, but also reduces the operating burden of medical staff.

[0032] 2. Compared with the fixed hemostatic device in the prior art, this solution uses a semi-circular support structure formed by a split arc component with adjustable angles and a flexible connector in series, which can better adapt to naval wounds of different parts and shapes, and improve the flexibility and adaptability of hemostatic fixation. The design of the gradient pressure airbag component can automatically adjust the pressure according to the wound condition to achieve a more precise hemostatic effect. At the same time, the fixing module adopts a suction cup and bevel rack design, which not only enhances the fit between the device and the injured limbs, but also achieves stable fixation in the bumpy environment of the ship, effectively preventing the device from shifting or falling off.

[0033] 3. Compared with the hemostatic devices with poor waterproof performance in the prior art, this solution effectively prevents seawater from penetrating and damaging the wound and the inside of the device by adding waterproof components, including edge self-sealing structures and multi-spectral humidity sensors. At the same time, the multi-spectral humidity sensor can accurately determine whether the real-time humidity data is seawater penetration or blood seepage, providing important decision-making basis for medical staff. When blood seepage is detected, the pressure compensation mechanism is triggered and an alarm signal is sent, further improving the safety and reliability of the device.

[0034] 4. Compared with the hemostatic devices with imperfect alarm and power management in the prior art, this solution can send out sound and light alarm signals in time when the real-time monitoring data is abnormal by adding an early warning module and a power module with dual power redundancy design, reminding medical staff to take corresponding measures. At the same time, the dual power redundancy design ensures the continuous power supply capability of the device in harsh environments and improves the stability and durability of the device. In addition, the composite protective film design on the outer wall of the arc component also enhances the antibacterial, repair and hydrophobic properties of the device, further improving the overall performance of the device.

[0035] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is an axonometric view of an embodiment of the hemostatic fixation device for naval battle injuries of the present invention;

[0037] Figure 2 It is a front view of an embodiment of the hemostatic fixation device for naval battle injuries of the present invention;

[0038] Figure 3 It is an axonometric view of the skeleton in the embodiment of the hemostatic fixation device for naval combat injuries of the present invention;

[0039] Figure 4 The present invention is a framework diagram of an embodiment of a hemostatic fixation device for naval combat injuries according to the present invention.

[0040] The figure marks in the drawings of the specification include: 1. arc plate; 2. flexible connector; 3. central pressurizing bag; 4. peripheral stabilizing bag; 5. oblique rack; 6. limiting plug hole; 7. edge self-sealing structure. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] The following is further described in detail through specific implementation methods:

[0045] Embodiment 1:

[0046] 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 installed, the frame comprising a plurality of split arc components and flexible connectors (2) with adjustable angles, each arc component being connected in series through the flexible connector 2 to form a semi-circular support structure; the arc component comprises an arc plate 1, the outer wall of the arc plate 1 is provided with a composite protective film, and the arc plate 1 is composed of an antibacterial layer, a repair layer and a hydrophobic layer in sequence. The flexible connector 2 is made of a composite of nickel-titanium alloy memory wire and medical silica gel, and has a built-in humidity compensation spring, which is used to ensure that the preset angle can be maintained in a turbulent environment of the ship.

[0047] The fixing module includes a number of 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 (the beveled rack 5 in this embodiment uses a titanium alloy beveled rack with a pitch of 2.5 mm and a tooth angle of 55°), one end of the beveled rack 5 is fixedly connected to one side of the skeleton, and the other side of the skeleton is provided with a limit socket 6 matching the beveled rack 5, and a limit block is fixedly connected in the limit socket 6 (in this embodiment, the limit block is made of shape memory polymer). The hemostasis module includes a gradient pressure airbag assembly, which includes a central pressure bag 3 and a peripheral stabilizing bag 4. The central pressure bag 3 and the peripheral stabilizing bag 4 are installed on one side of the skeleton from the inside to the outside. The gradient pressure airbag assembly is connected to a multi-stage air pump assembly (not shown in the figure), and the multi-stage air pump assembly is installed on the side of the skeleton away from the gradient pressure airbag assembly.

[0048] The intelligent monitoring module includes a controller, an acceleration sensor (ADXL355 nine-axis MEMS sensor is used in this embodiment), a pressure sensor (Tekscan FlexiForce A401 piezoelectric film sensor array is selected in this embodiment), a microwave blood flow sensor (a high-precision non-contact microwave blood flow monitoring sensor is specifically used in this embodiment, which can penetrate the skin surface and monitor blood flow in real time) and a bioimpedance monitoring electrode (Ag / AgCl interdigital flexible electrode is selected in this embodiment). 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.

[0049] The controller adjusts the multi-stage air pump assembly according to various data monitored in real time in 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 pressurization 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 according to 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 pressurization 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 monitors in real time that the tissue edema coefficient is greater than 35%, the controller starts all the multi-stage air pump assemblies, and according to the real-time pressure data monitored by the pressure sensor, reduces the pressure generated by the central pressurization bag 3 and increases the pressure of the peripheral stabilization bag 4.

[0050] It also includes a power module, which includes a battery pack (ER34615 lithium thionyl chloride battery pack (19Ah) is selected in this embodiment), and 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.

[0051] The specific implementation process is as follows: When there is a patient with naval combat injuries who needs to stop bleeding, medical staff follow the steps below:

[0052] 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-circular 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 accurate positioning and effective compression of the wound and improving the efficiency of hemostasis.

[0053] Pressing the bionic suction cup array activates the vacuum adsorption function, which can still generate ≥5N / cm on the wet skin surface 2 The 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 as the bevel rack 5 is fixed, further strengthening the fixing 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, and with the same performance, it can also be applied to different needs of height, weight, and body shape.

[0054] Afterwards, the controller controls the multi-stage air pump assembly to automatically perform initial pressurization: the central pressurization bag 3 increases the pressure to the base pressure of 50 mmHg at a rate of 20 mmHg / s; the peripheral stabilization bag 4 generates a 2 Hz low-frequency pulsating pressure (30-50 mmHg fluctuation), thereby quickly establishing an effective compression environment for the wound and providing the necessary pressure support for subsequent hemostasis operations.

[0055] 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.

[0056] When the microwave blood flow sensor detects that the bleeding rate is greater than 50 ml / min, the controller controls the multi-stage air pump assembly connected to the central pressurization bag 3 to adjust it to the 150 mmHg overpressure mode, which is reduced to 120 mmHg for maintenance after 30 seconds. At the same time, the peripheral stabilization bag 4 is 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 wounded.

[0057] 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 harm to the wounded due to excessive pressure and ensuring the safety and effectiveness of the hemostasis operation.

[0058] 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 an annular 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.

[0059] During the entire hemostasis and fixation process, the intelligent monitoring module continuously monitors the vital signs and wound conditions of the injured person. According to the 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.

[0060] When the patient's condition is stable or further treatment is needed, medical staff can remove the hemostatic fixation device according to the operating instructions. The device is cleaned and disinfected as necessary for next use. At the same time, the patient's use and the performance of the device are recorded to provide a reference for subsequent optimization and improvement.

[0061] Embodiment 2:

[0062] 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.

[0063] The specific implementation process is as follows: When the hemostatic fixation device accidentally contacts seawater, its built-in waterproof component is immediately activated. The liquid-expanding rubber strip (thickness 2mm) quickly absorbs 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 injured person's skin, preventing further penetration of seawater.

[0064] At the same time, the ship's emergency lighting (wavelength 405nm) is directed to the photosensitive curing adhesive layer. Within 60 seconds, the photosensitive curing adhesive layer triggers a photopolymerization reaction to form a waterproof sealing layer with a thickness of about 0.1mm. This sealing layer further enhances the waterproof performance of the device and ensures the safety of the internal electronic components and mechanical structures.

[0065] After the waterproof component is activated, the intelligent monitoring module continuously monitors the humidity changes inside the device. If an abnormal increase in humidity is detected, the controller will activate the early warning module to remind medical staff to deal with it in time.

[0066] Embodiment 3:

[0067] 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.

[0068] 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 seepage 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.

[0069] The specific implementation process is as follows: the multi-spectral humidity sensor collects reflectance spectrum data in the 400-2500nm band, and 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.

[0070] When the real-time humidity value received by the controller is greater than 85% RH, the spectral comparison algorithm calculates the correlation coefficient R 2 :

[0071] Assume that the real-time spectrum data is S real (λ i ), the reference spectral library is S ref (λ i ):

[0072] The characteristic wavelength set is:

[0073] S real =[S real (λ 1 ),Sreal (λ 2 ),…,S real (λ n )] T (λ∈[400,2500]nm)

[0074]

[0075] Define the diagonal weight matrix

[0076]

[0077] Introducing standardized processing:

[0078]

[0079] Define feature band coverage:

[0080]

[0081] Final correlation coefficient formula:

[0082]

[0083] Among them, W is the battlefield characteristic band enhancement, focusing on monitoring the seawater Cl- absorption peak (1450 / 1950nm) and blood Soret band (415nm); α is the characteristic coverage coefficient, ensuring that the recognition rate remains ≥70% when the sensor is partially damaged.

[0084] According to R 2 The controller determines whether it is seawater infiltration or blood infiltration (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 → performs pressure compensation).

[0085] If it is determined that blood is leaking and exceeds the preset threshold, the controller immediately triggers the pressure compensation mechanism, and the pressurization rate of the central pressurization bag 3 is increased to 50 mmHg / s to quickly control the bleeding.

[0086] The peripheral stabilization bag 4 is switched to a 3 Hz high frequency pulsation mode (pressure fluctuation ±5 mmHg) to enhance the stabilization effect on the tissues around the wound. At the same time, the controller sends an alarm signal.

[0087] Embodiment 4:

[0088] 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. Both the indicator light and the buzzer are 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.

[0089] The specific implementation process is as follows: Preset three-level sound and light alarm signals:

[0090] Level 1 warning:

[0091] Trigger condition: When the intelligent monitoring module detects that the pressure fluctuation exceeds ±10% and lasts for 10 seconds, a level 1 warning is triggered.

[0092] Response measures: The controller automatically calibrates the sensor and records the event. At the same time, the indicator light of the warning module starts flashing yellow and the buzzer emits an intermittent beep at 1kHz.

[0093] Level 2 warning:

[0094] Trigger condition: When the bleeding rate exceeds 80ml / min or the power reserve is less than 20%, the second level warning is triggered.

[0095] Response measures: The controller starts the backup hemostasis mode and sends a positioning signal so that medical staff can quickly locate the injured person. At the same time, the indicator light of the early warning module turns orange and rotates, and the buzzer emits a continuous beep of 2kHz.

[0096] Level 3 warning:

[0097] Trigger conditions: When it is detected that the injured person's vital signs disappear or the device fails completely, the third-level warning is triggered.

[0098] Response measures: Help rescuers quickly find the injured. The indicator light of the warning module turns red and flashes, and the buzzer emits a 3kHz pulse beep.

[0099] Embodiment 5:

[0100] The difference from Example 4 is that the battery pack is 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 mounting 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).

[0101] 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. When the main battery voltage is lower than 2.8V and lasts for 5 seconds, or the device is immersed in seawater for more than 10cm, the backup battery (seawater-activated magnesium battery) is automatically activated and connected to the circuit.

[0102] The shockproof cushion (made of silicone / carbon fiber composite material) installed in the battery installation slot can effectively absorb the impact caused by the ship's turbulence and protect the battery pack from damage. The fluororubber O-ring embedded on the inside of the sliding cover provides additional waterproof protection to ensure the sealing performance of the battery installation slot in extreme environments.

[0103] Continuous monitoring and maintenance: During use, the intelligent monitoring module continuously monitors the battery pack's power and voltage changes. When the power is low or the voltage is abnormal, the controller will activate the early warning module to remind medical staff to replace the battery in time or take corresponding measures.

[0104] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still 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 comprises a gradient pressure airbag assembly, the gradient pressure airbag assembly comprises 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, the peripheral stabilization bag (4) is located at the outer edge of the central pressure bag (4), 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 acceleration sensor, a pressure sensor, a microwave blood flow sensor and a bioimpedance monitoring electrode. The acceleration sensor, the pressure sensor, the microwave blood flow sensor and the bioimpedance monitoring electrode are all installed on the outer wall of the gradient pressure airbag assembly. The multi-stage air pump assembly, the acceleration sensor, the pressure sensor, the microwave blood flow sensor and the bioimpedance monitoring electrode are all connected to the controller signal. The controller is used to adjust the multi-stage air pump assembly according to various data monitored in real time in 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 a 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 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 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 filter increase instruction to the multi-stage air pump component connected to the peripheral stabilization bag (4) and sends 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 battle injuries according to claim 1 is characterized in that: The fixing module comprises a plurality of suction cups which are evenly distributed along the periphery of the frame. The fixing module also comprises an oblique rack (5), 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 plug hole (6) which matches the oblique rack (5), and a limiting block is fixedly connected in the limiting plug hole (6).

3. The hemostatic fixation device for naval battle injuries according to claim 2 is characterized in that: The flexible connector (2) is made of a composite of nickel-titanium alloy memory wire and medical silicone, and the flexible connector (2) has a built-in 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 battle 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, and 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 battle injuries according to claim 4 is characterized in that: The intelligent monitoring module also includes a multi-spectral humidity sensor for monitoring real-time humidity data. The multi-spectral humidity sensor is connected to the controller signal. The controller receives and 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 infiltration. When the controller analyzes the real-time humidity data and finds that it is 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 battle injuries according to claim 5 is characterized in that: It also includes an early warning module for giving 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. Both the indicator light and the buzzer are 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 battle injuries according to claim 6 is 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 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.

8. The hemostatic fixation device for naval battle injuries according to claim 7 is 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 buffer pad is provided in the battery installation slot, and a waterproof sealing ring is embedded on the inside of the sliding cover.

9. The hemostatic fixation device for naval battle injuries according to claim 8, characterized in that: The arc-shaped component comprises an arc-shaped plate (1), the outer 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 battle 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 is blood leakage 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.

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