Intelligent early warning type nursing fixing device for preventing extravasation during venous transfusion of critical patient

Abstract

The invention provides an intelligent early-warning type nursing fixing device for preventing extravasation during venous transfusion of a critical patient, and relates to the technical field of medical nursing equipment, the intelligent early-warning type nursing fixing device comprises a flexible outer shell, an early-warning assembly for warning leakage of venous transfusion is mounted at the outer end of the flexible outer shell, and clamping grooves are formed in the front side and the rear side of the early-warning assembly; a limiting assembly is installed in a clamping groove of the early warning assembly, a groove is formed in the outer surface of the early warning assembly, a positioning assembly is arranged in the groove of the early warning assembly, the lower surface of the positioning assembly abuts against the upper surface of the limiting assembly, the flexible outer shell is attached to the outer side of the infusion position of a patient, and the device is fixed to the limb of the patient through the early warning assembly. The limiting assembly further strengthens the fitting degree of the device and the limbs, the positioning assembly locks the installation state of the limiting assembly, the device can meet the nursing requirements that the limbs of the critical patient are limited in movement and long-term infusion is needed, and therefore the nursing safety, the fixing reliability and the intelligent early warning performance of the device are improved.

Description

Technical Field

[0001] This invention belongs to the field of medical and nursing equipment technology, and more specifically, it relates to an intelligent early warning nursing fixation device for preventing extravasation during intravenous infusion in critically ill patients. Background Technology

[0002] In the context of intravenous infusion care for critically ill patients, extravasation is a common and dangerous nursing risk. Critically ill patients often have symptoms such as impaired consciousness and dulled perception, making it impossible for them to report extravasation discomfort in a timely manner. If extravasation is not detected in time, it may lead to serious complications such as local tissue necrosis and vascular damage. At the same time, it also places extremely high demands on the convenience and safety of nursing procedures.

[0003] Currently, a smart early warning-type nursing fixation device for preventing extravasation during intravenous infusion in critically ill patients has been found to have at least the following technical problems: Most fixation devices use rigid straps or traditional buckle designs, which have poor adaptability and cannot fit the limbs of patients of different sizes. Moreover, the disassembly and assembly process is cumbersome and time-consuming. Some devices with basic fixation functions lack a comprehensive extravasation monitoring structure and rely solely on visual observation by medical staff, resulting in strong monitoring lag and difficulty in capturing early extravasation signals in real time. In addition, a few existing monitoring devices lack remote signal transmission capabilities, and early warning information cannot be synchronized to medical staff terminals in a timely manner, causing medical staff to be unable to respond quickly and further exacerbating the risk of extravasation injury. These problems together result in poor fixation adaptability, low disassembly and assembly efficiency, and delayed extravasation warnings of existing devices, which not only increase the workload of nursing staff but also seriously affect the infusion safety of critically ill patients and fail to meet the needs of precise and efficient critical care nursing. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides an intelligent early warning nursing fixation device for preventing extravasation during intravenous infusion in critically ill patients. This device solves the problems of poor fixation compatibility, low disassembly and assembly efficiency, and delayed extravasation warning in existing devices, which not only increase nursing workload but also seriously affect the infusion safety of critically ill patients.

[0005] An intelligent early warning nursing fixation device for preventing extravasation during intravenous infusion in critically ill patients includes a flexible outer shell. An early warning component for detecting intravenous infusion leakage is installed at the outer end of the flexible outer shell. The early warning component has slots on both the front and rear sides. A limiting component is installed inside the slots of the early warning component. A groove is formed on the outer surface of the early warning component. A positioning component is disposed in the groove of the early warning component. The lower surface of the positioning component abuts against the upper surface of the limiting component. A rechargeable component is detachably connected to the upper surface of the flexible outer shell.

[0006] Preferably, the warning component includes two sets of straps, which are respectively installed on the left and right sides of the flexible housing. The upper surface of the left set of straps is provided with a hook and loop fastener, and the lower surface of the other set of straps is provided with a hook and loop fastener. The hook and loop fastener is positioned on the rotation path of the hook and loop fastener. A pressure sensing matrix is ​​provided on the lower surface of the flexible housing. A wireless signal transmitter is installed on the front of the flexible housing. The output end of the pressure sensing matrix and the access end of the wireless signal transmitter are electrically connected. An interface is provided on the front of the flexible housing. The output end of the interface inside the flexible housing is electrically connected to the access end of the pressure sensing matrix.

[0007] Preferably, two sets of temperature sensors are installed on the lower surface of the flexible housing, and the two sets of temperature sensors are respectively located on the left and right sides of the pressure sensing matrix. The output end of the internal interface of the flexible housing and the input end of the two sets of temperature sensors are electrically connected.

[0008] Preferably, a silicone pad is adhered to the lower surface of the flexible housing, and the position of the lower surface of the silicone pad is parallel to the position of the lower surfaces of the pressure sensing matrix and the two sets of temperature sensors. The lower surface of the silicone pad is provided with anti-slip protrusions.

[0009] Preferably, the limiting component includes multiple sets of connecting straps, and slots are provided on both the front and rear sides of the two sets of straps. One end of the multiple sets of connecting straps is respectively engaged in the two sets of slots of the two sets of straps. An adhesive layer is provided on the lower surface of the multiple sets of connecting straps, and the position of the lower surface of the multiple sets of adhesive layers is parallel to the position of the lower surface of the two sets of straps.

[0010] Preferably, the positioning component includes multiple sets of positioning rings, and the upper surfaces of both sets of straps are provided with grooves. The multiple sets of positioning rings are respectively installed in the two sets of grooves of the two sets of straps. The inner walls of the multiple sets of positioning rings are provided with internal threads, and screws are connected to the internal threads of the positioning rings. The bottom ends of the multiple sets of screws respectively abut against the upper surfaces of the multiple sets of connecting straps.

[0011] Preferably, the battery extension component includes a vacuum suction cup, the lower surface of which is adsorbed onto the upper surface of the flexible housing. A battery is mounted on the upper surface of the vacuum suction cup, and a wiring harness is mounted on the output end of the battery. The end of the wiring harness away from the battery is snapped into the interface of the flexible housing.

[0012] Preferably, the upper surface of the battery has a groove, and a warning light is installed in the groove of the battery. The warning light has three colors: red, yellow, and green.

[0013] Preferably, the upper surface of the flexible housing is provided with a mounting groove, and a flexible display screen is installed in the mounting groove of the flexible housing. The output terminals of the pressure sensing matrix and the two sets of temperature sensors are electrically connected to the access terminals of the flexible display screen.

[0014] Preferably, a waterproof membrane is adhered to the lower surface of the silicone pad, and the lower surface of the waterproof membrane is attached to the outer surface of the patient's skin.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In this invention, two sets of straps are wrapped around the patient's limb. Rotating one set of straps causes the hook and loop sides of the Velcro to adhere and bond, quickly fixing the device. During infusion, a pressure sensing matrix detects pressure changes at the infusion site in real time. The detection data is transmitted to a wireless signal transmitter via an electrical connection, which then sends the data to a medical terminal. The strap structure ensures a flexible and adaptable fixation, the Velcro loop and hook sides ensure easy assembly and disassembly, the pressure sensing matrix ensures comprehensive detection, and the wireless signal transmitter ensures remote transmission of warning signals. This allows the device to be quickly fixed and disassembled, adapting to patients with limbs of different sizes. It monitors extravasation in real time and provides remote warnings, facilitating timely intervention by medical staff and preventing severe cases from worsening due to delayed feedback. This enhances the core warning effect and fixation adaptability of the warning component, thus improving the device's convenience and safety in nursing care.

[0017] In this invention, two sets of temperature sensors work in conjunction with a pressure sensing matrix. The temperature sensors monitor changes in skin temperature at the patient's infusion site in real time. The temperature data is transmitted to the device control system via electrical connection, forming dual monitoring with the pressure data from the pressure sensing matrix. The temperature sensing structure of the temperature sensors ensures accurate monitoring, the symmetrical distribution ensures comprehensive detection, and the electrical connection ensures timely data transmission. This enables the device to achieve dual monitoring of pressure and temperature, avoiding misjudgments or omissions caused by a single monitoring dimension. It is particularly suitable for scenarios where the skin perception of critically ill patients is impaired, improving the accuracy of extravasation warnings and providing medical staff with more comprehensive reference data on the patient's condition. This enhances the monitoring accuracy and nursing reliability of the device, thus strengthening its intelligent early warning capabilities.

[0018] In this invention, multiple sets of connecting straps are unfolded and bonded to other parts of the patient's limbs via an adhesive layer. The connecting strap structure ensures extended fixation range, the adhesive layer ensures a firm fit, and the parallel arrangement ensures a smooth fit against the skin. This results in a more stable fixation effect, preventing device displacement or needle dislodgement due to unconscious limb movements in critically ill patients. The distribution of multiple connecting straps adapts to the limb's curve, and the adhesive layer is gentle and non-irritating to the skin, meeting the needs of long-term wear. Furthermore, the unfolding angle of the connecting straps can be adjusted according to the patient's limb condition, improving fixation adaptability. This enhances the core reinforcement and fixation effect of the limiting component and its adaptability to nursing care, thus strengthening the device's fixation stability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the top surface structure of the present invention;

[0020] Figure 2 This is a side view of the present invention;

[0021] Figure 3 This is a schematic diagram of the bottom structure of the present invention;

[0022] Figure 4 This is a side view of the battery life component in this invention.

[0023] Figure 5 This is a side view of the positioning component in this invention.

[0024] Figure 6 This is the present invention. Figure 1 Enlarged view of point A in the middle;

[0025] Figure 7 This is the present invention. Figure 2 Enlarged view of point B in the middle.

[0026] In the diagram, the correspondence between the component names and the attached drawing numbers is as follows: 1. Flexible outer shell; 2. Warning component; 201. Strap; 202. Velcro surface; 203. Velcro hook surface; 204. Wireless signal transmitter; 205. Pressure sensor matrix; 3. Temperature sensor; 4. Flexible display screen; 5. Battery life component; 501. Battery; 502. Wiring harness; 503. Vacuum suction cup; 6. Warning light; 7. Positioning component; 701. Positioning ring; 702. Screw; 8. Limiting component; 801. Connecting strap; 802. Adhesive layer; 9. Waterproof membrane; 10. Silicone pad. Detailed Implementation

[0027] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0028] Please see Figures 1-7This invention provides an intelligent early warning nursing fixation device for preventing extravasation during intravenous infusion in critically ill patients. It includes a flexible outer shell 1, with an early warning component 2 for detecting intravenous infusion leakage installed at the outer end of the flexible outer shell 1. The early warning component 2 has slots on its front and rear sides, with a limiting component 8 installed inside each slot. A groove is formed on the outer surface of the early warning component 2, and a positioning component 7 is disposed within the groove. The lower surface of the positioning component 7 abuts against the upper surface of the limiting component 8. A power supply component 5 is detachably connected to the upper surface of the flexible outer shell 1. Specifically, the flexible outer shell 1 is fitted to the outside of the patient's infusion site, and the device is fixed to the patient's limb by the early warning component 2. The limiting component 8 further reinforces the fit between the device and the limb, the positioning component 7 locks the installation state of the limiting component 8, and the power supply component 5 provides power for the device's operation. This allows the device to adapt to the nursing needs of critically ill patients with limited limb movement and requiring long-term infusion, thereby improving the device's nursing safety, fixation reliability, and intelligent early warning capabilities, thus enhancing its practicality.

[0029] The warning component 2 includes two sets of straps 201, which are respectively installed on the left and right sides of the flexible housing 1. The upper surface of the left set of straps 201 is provided with a hook and loop surface 202, and the lower surface of the other set of straps 201 is provided with a hook and loop surface 203. The hook and loop surface 202 is located on the rotation path of the hook and loop surface 203. The lower surface of the flexible housing 1 is provided with a pressure sensing matrix 205. A wireless signal transmitter 204 is installed on the front of the flexible housing 1. The output end of the pressure sensing matrix 205 and the access end of the wireless signal transmitter 204 are electrically connected. An interface is opened on the front of the flexible housing 1. The output end of the interface inside the flexible housing 1 and the access end of the pressure sensing matrix 205 are electrically connected.

[0030] Specifically, when fixing the device, two sets of straps 201 are wrapped around the patient's limb. Rotating one set of straps 201 causes the hook and loop surfaces of the Velcro to adhere and bond, completing the quick fixation of the device. During infusion, the pressure sensing matrix 205 detects pressure changes at the infusion site in real time. The detection data is transmitted to the wireless signal transmitter 204 via an electrical connection. The wireless signal transmitter 204 then sends the data to the medical terminal. At this time, the structure of the straps 201 ensures a flexible and adaptable fixation, and the hook and loop surfaces of the Velcro 202 and the hook and loop surfaces of the Velcro... The Velcro straps on surface 203 ensure easy installation and removal, the pressure sensor matrix 205 ensures comprehensive detection, and the wireless signal transmitter 204 ensures remote transmission of warning signals. This allows the device to be quickly fixed and disassembled, adapting to patients' limbs of different sizes. It monitors extravasation in real time and provides remote warnings, facilitating timely intervention by medical staff. This prevents serious patients from suffering further damage due to the inability to provide timely feedback, thereby improving the core warning effect and fixation adaptability of the warning component 2. As a result, the device's nursing convenience and safety are enhanced.

[0031] Two sets of temperature sensors 3 are installed on the lower surface of the flexible housing 1. The two sets of temperature sensors 3 are respectively positioned on the left and right sides of the pressure sensing matrix 205. The output end of the internal interface of the flexible housing 1 and the input end of the two sets of temperature sensors 3 are electrically connected. Specifically, during infusion, the two sets of temperature sensors 3 work together with the pressure sensing matrix 205. The temperature sensors 3 monitor the changes in skin temperature at the infusion site in real time. The temperature data is transmitted to the device control system through electrical connection, forming dual monitoring with the pressure data of the pressure sensing matrix 205. At this time, the temperature sensing structure of the temperature sensors 3 ensures accurate monitoring, the symmetrical distribution ensures comprehensive detection, and the electrical connection ensures timely data transmission. Thus, the device can achieve dual monitoring of pressure and temperature, avoiding misjudgment or missed judgment caused by a single monitoring dimension. It is especially suitable for the scenario of dull skin perception in critically ill patients, improves the accuracy of extravasation warning, and provides medical staff with more comprehensive reference data on the patient's condition, thereby improving the monitoring accuracy and nursing reliability of the device and enhancing the device's intelligent early warning capability.

[0032] A silicone pad 10 is bonded to the lower surface of the flexible outer shell 1. The position of the lower surface of the silicone pad 10 is parallel to the position of the lower surfaces of the pressure sensing matrix 205 and the two sets of temperature sensors 3. Anti-slip protrusions are provided on the lower surface of the silicone pad 10. Specifically, when the device is applied to the patient's skin, the silicone pad 10 first contacts the skin. At this time, the silicone material of the silicone pad 10 ensures flexible contact and avoids pressure damage. The parallel arrangement ensures that the pressure sensing matrix 205 and temperature sensors 3 can accurately contact the skin to complete monitoring. The anti-slip protrusions increase the friction with the skin. At this time, the structure of the silicone pad 10 not only ensures flexible contact between the monitoring components and the skin, but also improves the stability of the device's contact with the skin. This prevents the pressure sensing matrix 205 and temperature sensors 3 from causing allergies or pressure sores due to direct contact with the skin. The anti-slip structure prevents the device from shifting due to slight movements of the patient's limbs, ensuring accurate monitoring data. It is suitable for the nursing needs of critically ill patients with fragile and easily damaged skin, improves the safety and monitoring stability of the device, and thus enhances the device's nursing adaptability and structural reliability, thereby increasing the device's practical value.

[0033] The limiting component 8 includes multiple sets of connecting straps 801. Each of the two sets of straps 201 has slots on both its front and rear sides. One end of each set of connecting straps 801 is respectively engaged in one of the slots of the two sets of straps 201. Each set of connecting straps 801 has an adhesive layer 802 on its lower surface, and the lower surfaces of the adhesive layers 802 are parallel to the lower surfaces of the two sets of straps 201. Specifically, after the device is fixed by the warning component 2, the multiple sets of connecting straps 801 are unfolded and adhered to other parts of the patient's limb using the adhesive layers 802. At this time, the structure of the connecting straps 801 is maintained. The extended fixation range and the adhesive layer 802 ensure a firm fit. The parallel arrangement ensures a smooth fit with the skin, making the device more stable and preventing displacement or needle dislodgement due to unconscious limb movements in critically ill patients. The distribution of multiple connecting straps 801 adapts to the limb curves. The adhesive layer 802 is gentle and non-irritating to the skin, suitable for long-term wear. The unfolding angle of the connecting straps 801 can be adjusted according to the patient's limb condition to improve fixation adaptability. This enhances the core reinforcement and fixation effect and nursing adaptability of the limiting component 8, thus strengthening the device's fixation stability.

[0034] The positioning assembly 7 includes multiple positioning rings 701. Grooves are formed on the upper surfaces of both sets of straps 201. The positioning rings 701 are respectively installed in the two grooves of the two sets of straps 201. Internal threads are formed on the inner walls of the positioning rings 701. Screws 702 are connected to the internal threads of the positioning rings 701. The bottom ends of the screws 702 abut against the upper surfaces of the connecting straps 801. Specifically, after the connecting strap 801 is engaged in the slot of the strap 201, rotating the screws 702 moves them downwards along the internal threads of the positioning rings 701 until the bottom ends of the screws 702 tightly abut against the upper surface of the connecting strap 801, thus locking the connection. At the position of the connecting band 801, the positioning ring 701 ensures precise installation, the screw 702 ensures secure locking, and the abutment structure ensures reliable limiting. This prevents the connecting band 801 from falling out of the slot of the strap 201 due to patient limb movement or traction, ensuring a long-lasting and stable reinforcement and fixation effect. The threaded connection locking method facilitates adjustment and unlocking without affecting the disassembly and maintenance of the device. At the same time, it can be precisely locked according to the installation position of the connecting band 801, improving structural stability and thus enhancing the core locking and limiting effect of the positioning component 7, thereby strengthening the structural reliability of the device.

[0035] The extended battery assembly 5 includes a vacuum suction cup 503. The lower surface of the vacuum suction cup 503 is adsorbed onto the upper surface of the flexible housing 1. A battery 501 is mounted on the upper surface of the vacuum suction cup 503. A wiring harness 502 is installed at the output end of the battery 501, and the end of the wiring harness 502 away from the battery 501 is snapped into the interface of the flexible housing 1. Specifically, when the device is in use, the vacuum suction cup 503 is quickly fixed to the upper surface of the flexible housing 1 through adsorption, completing the detachable connection between the extended battery assembly 5 and the flexible housing 1. The battery 501 is electrically connected to the interface of the flexible housing 1 through the wiring harness 502, providing power for components such as the pressure sensing matrix 205 and the temperature sensor 3. Powered by the device, the vacuum suction cup 503 ensures easy disassembly and assembly, the battery 501 ensures sufficient power supply, and the wiring harness 502 ensures stable power supply. This allows the device to quickly replace the power supply component 5 to replenish power, adapting to the continuous monitoring needs of critically ill patients undergoing long-term infusion. The detachable structure facilitates the charging and maintenance of the power supply component 5, and the fixing method of the vacuum suction cup 503 does not damage the surface structure of the flexible outer shell 1, while ensuring the stability of the power supply connection and avoiding warning failure due to power interruption. This improves the core power supply effect and ease of use of the power supply component 5, thus enhancing the device's power supply reliability.

[0036] A groove is formed on the upper surface of the battery 501, and an alarm light 6 is installed in the groove. The alarm light 6 has three colors: red, yellow, and green. Specifically, when the device is running, the alarm light 6 uses different colors to indicate the working status: green indicates normal monitoring and no leakage; yellow indicates abnormal monitoring data and requires attention; and red indicates confirmed leakage and immediate warning. The structure of the alarm light 6 ensures intuitive warnings, and the multiple colors ensure clear distinction of status. This allows medical staff to quickly judge the device's operating status and the patient's infusion status by looking at the alarm light 6 during ward rounds, without having to look at the terminal data at close range, thus improving the efficiency of nursing rounds. It is especially suitable for multi-patient management scenarios in intensive care units. The strong warning of red and yellow lights can quickly remind medical staff to prioritize the handling of critical situations, thereby improving the on-site warning effect of the device and nursing efficiency, thus enhancing the nursing adaptability of the device.

[0037] The upper surface of the flexible housing 1 has a mounting groove, and a flexible display screen 4 is installed in the mounting groove. The output ends of the pressure sensing matrix 205 and the two sets of temperature sensors 3 are electrically connected to the input ends of the flexible display screen 4. Specifically, during infusion monitoring, the pressure data detected by the pressure sensing matrix 205 and the temperature data detected by the temperature sensors 3 are transmitted to the flexible display screen 4 in real time through electrical connection. The flexible display screen 4 displays the data intuitively. At this time, the flexible display screen 4 is adapted to the flexible structure of the flexible housing 1, which is convenient for close observation. The data display function ensures the visualization of monitoring, so that medical staff can quickly read the real-time monitoring data through the flexible display screen 4 during close care, accurately judge the status of the patient's infusion site, avoid the delay in treatment caused by remote data transmission delay, and the flexible design will not affect the patient's limb movement. At the same time, the data visualization facilitates the recording of nursing data, improves the standardization of nursing care, and thus improves the monitoring visualization effect and nursing convenience of the device, thereby enhancing the intelligent nursing capability of the device.

[0038] A waterproof membrane 9 is adhered to the lower surface of the silicone pad 10, and the lower surface of the waterproof membrane 9 is attached to the outer surface of the patient's skin. Specifically, by adhering the waterproof membrane 9 to the lower surface of the silicone pad 10, the lower surface of the waterproof membrane 9 is attached to the outer surface of the patient's skin. When the device is in contact with the patient's skin, the waterproof membrane 9 covers the space between the silicone pad 10 and the skin. At this time, the waterproof structure of the waterproof membrane 9 not only prevents sweat and medication from entering the device and damaging components such as the pressure sensing matrix 205 and the temperature sensor 3, but also prevents the electrical components inside the device from directly contacting the skin, ensuring safety during use. As a result, the device can still maintain stable operation even when the patient sweats or there is slight leakage of medication, and will not cause short circuits or monitoring failures due to liquid intrusion. At the same time, the isolation effect of the waterproof membrane 9 further reduces the risk of skin allergies, making it suitable for nursing scenarios of long-term infusion for critically ill patients, improving the durability and safety of use of the device, thereby improving the environmental adaptability and nursing reliability of the device, and thus enhancing the long-term use value of the device.

[0039] Working principle:

[0040] The first step involves wrapping two sets of straps 201 around the patient's limb. Rotating one set of straps 201 causes the hook side 203 of the Velcro to adhere to the loop side 202, quickly fixing the device. During infusion, the pressure sensor matrix 205 detects pressure changes at the infusion site in real time. The detection data is transmitted to the wireless signal transmitter 204 via an electrical connection. The wireless signal transmitter 204 then sends the data to the medical terminal. At this time, the structure of the straps 201 ensures a flexible and adaptable fixation, the Velcro loop side 202 and the Velcro hook side 203 cooperate to ensure easy assembly and disassembly, the pressure sensor matrix 205 ensures comprehensive detection, and the wireless signal transmitter 204 ensures remote transmission of warning signals. This allows the device to be quickly fixed and disassembled, adapting to patients with different limb sizes, monitoring extravasation in real time and providing remote warnings, facilitating timely intervention by medical staff, and preventing serious patients from suffering further damage due to the inability to provide timely feedback. This enhances the core warning effect and fixation adaptability of the warning component 2, thus improving the convenience and safety of the device for nursing care.

[0041] In the second step, the two sets of temperature sensors 3 work together with the pressure sensing matrix 205. The temperature sensors 3 monitor the changes in skin temperature at the infusion site in real time. The temperature data is transmitted to the device control system via electrical connection, forming a dual monitoring system with the pressure data from the pressure sensing matrix 205. At this time, the temperature sensing structure of the temperature sensors 3 ensures accurate monitoring, the symmetrical distribution ensures comprehensive detection, and the electrical connection ensures timely data transmission. This enables the device to achieve dual monitoring of pressure and temperature, avoiding misjudgments or omissions caused by a single monitoring dimension. It is especially suitable for critically ill patients with reduced skin perception, improving the accuracy of extravasation warnings and providing medical staff with more comprehensive reference data on the patient's condition. This enhances the monitoring accuracy and nursing reliability of the device, thus strengthening the device's intelligent early warning capability.

[0042] The third step involves unfolding multiple sets of connecting straps 801 and attaching them to other parts of the patient's limb using adhesive layers 802. At this point, the structure of the connecting straps 801 ensures extended fixation range, while the adhesive layers 802 ensure a firm fit. The parallel arrangement ensures a smooth fit against the skin, resulting in a more stable fixation effect. This prevents the device from shifting or the needle from falling out due to unconscious limb movements in critically ill patients. The distribution of multiple connecting straps 801 adapts to the limb's curve, and the adhesive layers 802 are gentle and non-irritating to the skin, meeting the needs of long-term wear. Furthermore, the unfolding angle of the connecting straps 801 can be adjusted according to the patient's limb condition to improve fixation adaptability. This enhances the core reinforcement and fixation effect of the limiting component 8 and its nursing adaptability, thus strengthening the device's fixation stability.

[0043] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An intelligent early warning nursing fixation device for preventing extravasation during intravenous infusion in critically ill patients, comprising a flexible outer shell (1), characterized in that: The flexible outer shell (1) is equipped with an early warning component (2) for intravenous infusion leakage. The early warning component (2) has slots on its front and rear sides. A limiting component (8) is installed inside the slots of the early warning component (2). The outer surface of the early warning component (2) has a groove. A positioning component (7) is provided in the groove of the early warning component (2). The lower surface of the positioning component (7) abuts against the upper surface of the limiting component (8). A battery life component (5) is detachably connected to the upper surface of the flexible outer shell (1).

2. The intelligent early warning nursing fixation device for preventing extravasation during intravenous infusion in critically ill patients as described in claim 1, characterized in that, in, The warning component (2) includes two sets of straps (201), which are respectively installed on the left and right sides of the flexible housing (1). The upper surface of the left set of straps (201) is provided with a hook and loop surface (202), and the lower surface of the other set of straps (201) is provided with a hook and loop surface (203). The hook and loop surface (202) is located on the rotation path of the hook and loop surface (203). The lower surface of the flexible housing (1) is provided with a pressure sensing matrix (205). A wireless signal transmitter (204) is installed on the front of the flexible housing (1). The output end of the pressure sensing matrix (205) and the access end of the wireless signal transmitter (204) are electrically connected. An interface is opened on the front of the flexible housing (1). The output end of the interface inside the flexible housing (1) and the access end of the pressure sensing matrix (205) are electrically connected.

3. The intelligent early warning nursing fixation device for preventing extravasation during intravenous infusion in critically ill patients as described in claim 2, characterized in that, in, Two sets of temperature sensors (3) are installed on the lower surface of the flexible housing (1). The two sets of temperature sensors (3) are respectively located on the left and right sides of the pressure sensing matrix (205). The output end of the internal interface of the flexible housing (1) and the access end of the two sets of temperature sensors (3) are electrically connected.

4. The intelligent early warning nursing fixation device for preventing extravasation during intravenous infusion in critically ill patients as described in claim 3, characterized in that, in, A silicone pad (10) is bonded to the lower surface of the flexible outer shell (1). The position of the lower surface of the silicone pad (10) is parallel to the position of the lower surface of the pressure sensing matrix (205) and the two sets of temperature sensors (3). Anti-slip protrusions are provided on the lower surface of the silicone pad (10).

5. The intelligent early warning nursing fixation device for preventing extravasation during intravenous infusion in critically ill patients as described in claim 2, characterized in that, in, The limiting component (8) includes multiple sets of connecting straps (801). Both sides of the two sets of straps (201) are provided with slots. One end of the multiple sets of connecting straps (801) is respectively engaged in the two sets of slots of the two sets of straps (201). The lower surface of the multiple sets of connecting straps (801) is provided with an adhesive layer (802). The position of the lower surface of the multiple sets of adhesive layers (802) is parallel to the position of the lower surface of the two sets of straps (201).

6. The intelligent early warning nursing fixation device for preventing extravasation during intravenous infusion in critically ill patients as described in claim 5, characterized in that, in, The positioning component (7) includes multiple positioning rings (701). The upper surfaces of the two sets of straps (201) are provided with grooves. The multiple positioning rings (701) are respectively installed in the two sets of grooves of the two sets of straps (201). The inner walls of the multiple positioning rings (701) are provided with internal threads. The internal threads of the positioning rings (701) are connected with screws (702). The bottom ends of the multiple sets of screws (702) respectively abut against the upper surfaces of the multiple sets of connecting straps (801).

7. The intelligent early warning nursing fixation device for preventing extravasation during intravenous infusion in critically ill patients as described in claim 1, characterized in that, in, The battery life component (5) includes a vacuum suction cup (503), the lower surface of which is adsorbed onto the upper surface of the flexible housing (1). A battery (501) is mounted on the upper surface of the vacuum suction cup (503), and a wiring harness (502) is mounted on the output end of the battery (501). One end of the wiring harness (502) away from the battery (501) is snapped into the interface of the flexible housing (1).

8. The intelligent early warning nursing fixation device for preventing extravasation during intravenous infusion in critically ill patients as described in claim 7, characterized in that, in, The upper surface of the storage battery (501) is provided with a groove, and a warning light (6) is installed in the groove of the storage battery (501). The light color of the warning light (6) is set to three colors: red, yellow and green.

9. The intelligent early warning nursing fixation device for preventing extravasation during intravenous infusion in critically ill patients as described in claim 3, characterized in that, in, The upper surface of the flexible housing (1) is provided with an installation groove, and a flexible display screen (4) is installed in the installation groove of the flexible housing (1). The output ends of the pressure sensing matrix (205) and the two sets of temperature sensors (3) are electrically connected to the access end of the flexible display screen (4).

10. The intelligent early warning nursing fixation device for preventing extravasation during intravenous infusion in critically ill patients as described in claim 4, characterized in that, in, A waterproof membrane (9) is adhered to the lower surface of the silicone pad (10), and the lower surface of the waterproof membrane (9) is attached to the outer surface of the patient's skin.

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