Intelligent indwelling needle fixing patch capable of monitoring infection and alarming

Abstract

The application belongs to the technical field of medical equipment, and discloses an intelligent indwelling needle fixing patch capable of monitoring infection and giving an alarm, which comprises a skin-adhering layer, wherein the skin-adhering layer is sequentially provided with a fixing layer, a monitoring layer, a control layer and a protection layer from bottom to top. The temperature sensor, the humidity sensor, the microorganism sensing unit, the microcontroller and the power supply module are arranged, after the power supply module is started, each sensing unit collects local temperature, skin humidity and microorganism concentration data of a puncture site in real time, and transmits the data to the microcontroller; the microcontroller analyzes and processes the data and compares the data with preset threshold values, if each data is within the threshold value range, the device works normally; if any data exceeds the threshold value, the microcontroller immediately controls the alarm module to give an audible alarm, and simultaneously uploads abnormal data to a medical terminal through a wireless transmission module, so as to remind medical staff to handle in time, and to complete infection monitoring and alarm.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically an intelligent indwelling needle fixation patch that can monitor infection and trigger an alarm. Background Technology

[0002] An indwelling needle is a disposable medical device used for peripheral intravenous infusion. It consists of a stainless steel needle core and a soft plastic / silicone cannula. During puncture, the needle core and cannula are inserted into the blood vessel together. After successful puncture, the stainless steel needle core is withdrawn, leaving only the soft cannula in the blood vessel for subsequent infusion, blood transfusion, or drug administration.

[0003] Currently, the commonly used methods for fixing indwelling needles in clinical practice mainly involve using ordinary medical tape or special fixation adhesive tape. Their core function is simply to secure the needle body and prevent displacement or detachment, but they cannot monitor for infection at the puncture site. Infection at the puncture site is a common clinical complication, mainly manifesting as redness, swelling, fever, and increased discharge at the puncture site. In severe cases, it can lead to phlebitis, sepsis, and other serious consequences, threatening the patient's life. Existing technologies for monitoring infection at the puncture site rely primarily on regular rounds by medical staff and subjective feedback from patients, which has significant drawbacks: firstly, the time intervals between rounds by medical staff prevent real-time monitoring of infection, easily leading to delayed detection and treatment; secondly, some patients (such as elderly patients or patients with impaired consciousness) cannot accurately express their discomfort, further increasing the risk of missed infection diagnoses. Therefore, improvements are needed. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent indwelling needle fixation patch that can monitor infection and trigger an alarm, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an intelligent indwelling needle fixation patch capable of monitoring infection and triggering an alarm, comprising a skin adhesion layer, wherein the skin adhesion layer is provided with a fixation layer, a monitoring layer, a control layer, and a protective layer sequentially from bottom to top, and the fixation layer, monitoring layer, control layer, and protective layer are fixedly connected to each other by medical-grade adhesive; the monitoring layer contains a temperature sensor, a humidity sensor, and a microbial sensing unit; the control layer contains a microcontroller, a wireless transmission module, an alarm module, and a power supply module; the fixation layer has a monitoring hole inside, and the detection ends of the temperature sensor, humidity sensor, and microbial sensing unit all pass through the monitoring hole and are close to the skin adhesion layer; the microcontroller is electrically connected to the temperature sensor, humidity sensor, microbial sensing unit, wireless transmission module, alarm module, and power supply module respectively.

[0006] Preferably, the skin-adhesive layer has an indwelling needle through-hole inside, and the indwelling needle through-hole is circular in appearance.

[0007] Preferably, the skin-adhesive layer has ventilation holes inside, and the ventilation holes are evenly distributed on the surface of the skin-adhesive layer.

[0008] Preferably, the bottom of the skin-adhesive layer is covered with release paper, the size of which is adapted to the size of the skin-adhesive layer.

[0009] Preferably, two connecting papers are fixedly connected to the outside of the release paper, and the two connecting papers are symmetrical about the center of the release paper.

[0010] Preferably, a first wristband and a second wristband are fixedly connected to the left and right sides of the fixed layer, respectively. An adjustment belt is movably sleeved on the inner surface of the second wristband. An adjustment hole is opened inside both the adjustment belt and the second wristband. A connecting belt is movably installed on the outer side of the second wristband. A buckle is snapped into the inside of the connecting belt. The outer surface of the buckle is movably sleeved with the inner surface of the adjustment hole.

[0011] Preferably, a first Velcro strap is fixedly connected to the top of the first wristband, and a second Velcro strap is fixedly connected to the bottom of the adjustment strap.

[0012] Preferably, a third hook and loop fastener is fixedly connected to the top of the skin-adhesive layer, and a fourth hook and loop fastener is fixedly connected to the bottom of the fixing layer, and the third hook and loop fastener and the fourth hook and loop fastener are bonded together.

[0013] Preferably, the protective layer is a transparent medical waterproof membrane, which covers the control layer.

[0014] The beneficial effects of this invention are as follows:

[0015] 1. This invention incorporates a temperature sensor, a humidity sensor, a microbial sensing unit, a microcontroller, and a power supply module. Upon activation of the power supply module, the temperature sensor, humidity sensor, and microbial sensing unit begin operation, collecting real-time data on local temperature, skin humidity, and microbial concentration at the puncture site. This data is then transmitted to the microcontroller. The microcontroller analyzes and processes the received data, comparing it to pre-set thresholds. If all data falls within the preset threshold range, the device operates normally without triggering an alarm. If any data exceeds the preset threshold, the microcontroller immediately activates an audible alarm and simultaneously transmits the abnormal data wirelessly to a medical terminal, alerting medical personnel to promptly investigate and address the issue. This achieves the purpose of monitoring infection and triggering an alarm.

[0016] 2. This invention, by setting up a first wristband, a second wristband, an adjustment strap, a connecting strap, and a buckle, first separates the connecting strap from the buckle, and then pulls the buckle out of the adjustment hole on the adjustment strap to release the locking constraint on the adjustment strap; then, by pulling the adjustment strap outward, the overall wearing length can be adjusted as needed to fit patients with different arm sizes. This adjustment structure is simple to operate and stable in adjustment, which not only improves the wearability but also broadens the applicability of the first wristband, the second wristband, and the adjustment strap, enhancing the versatility of the device.

[0017] 3. By setting up a third and a fourth hook and loop fastener, the adhesive state of the third and fourth hook and loop fasteners can be released by pulling the fixing layer, so that the overall structure above the fixing layer can be easily separated from the skin-adhesive layer. This structure allows the components above the fixing layer to be removed separately, cleaned and disinfected, and reused, which reduces the waste of consumables, lowers the cost of use, and improves the economy of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the exploded structure of the present invention;

[0020] Figure 3 This is a schematic cross-sectional view of the present invention;

[0021] Figure 4 This is a cross-sectional view of the monitoring layer of the present invention;

[0022] Figure 5 This is a cross-sectional view of the control layer of the present invention;

[0023] Figure 6 This is a cross-sectional view of the buckle structure of the present invention;

[0024] Figure 7 This is a partial structural diagram of the buckle of the present invention.

[0025] In the diagram: 1. Skin-adhesive layer; 2. Fixation layer; 3. Monitoring layer; 4. Control layer; 5. Protective layer; 6. Temperature sensor; 7. Humidity sensor; 8. Microbial sensing unit; 9. Microcontroller; 10. Wireless transmission module; 11. Alarm module; 12. Power supply module; 13. Indwelling needle through-hole; 14. Ventilation hole; 15. Monitoring hole; 16. Release paper; 17. Connecting paper; 18. First wristband; 19. Second wristband; 20. Adjustment strap; 21. First Velcro; 22. Second Velcro; 23. Adjustment hole; 24. Connecting strap; 25. Buckle; 26. Third Velcro; 27. Fourth Velcro. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figures 1 to 7 As shown, this embodiment of the invention provides an intelligent indwelling needle fixation patch capable of monitoring infection and triggering alarms. It includes a skin-adhesive layer 1, from bottom to top, comprising a fixation layer 2, a monitoring layer 3, a control layer 4, and a protective layer 5. Each layer is fixedly connected with a medical-grade adhesive. The monitoring layer 3 houses a temperature sensor 6, a humidity sensor 7, and a microbial sensing unit 8. The control layer 4 houses a microcontroller 9, a wireless transmission module 10, an alarm module 11, and a power supply module 12. The fixation layer 2 has a monitoring hole 15. The detection ends of the temperature sensor 6, humidity sensor 7, and microbial sensing unit 8 pass through the monitoring hole 15 and are close to the skin-adhesive layer 1. The microcontroller 9 is electrically connected to the temperature sensor 6, humidity sensor 7, microbial sensing unit 8, wireless transmission module 10, alarm module 11, and power supply module 12.

[0028] The microcontroller 9 has a built-in preset threshold. When the power supply module 12 is activated, the temperature sensor 6, humidity sensor 7, and microbial sensing unit 8 begin to work, collecting real-time data on local temperature, skin humidity, and microbial concentration at the puncture site and transmitting the data to the microcontroller 9. The microcontroller 9 analyzes and processes the received data, comparing it with the built-in preset threshold. If all data are within the preset threshold range, the device operates normally and no alarm is triggered. If any data exceeds the preset threshold, the microcontroller 9 immediately controls the alarm module 11 to activate an audible alarm and simultaneously transmits the abnormal data to the medical terminal via the wireless transmission module 10, reminding medical staff to check and handle the situation promptly, thus achieving the purpose of monitoring infection and triggering an alarm.

[0029] The skin adhesion layer 1 has an indwelling needle through hole 13 inside, and the indwelling needle through hole 13 is circular in appearance.

[0030] The indwelling needle through-hole 13 is designed to avoid the indwelling needle body.

[0031] The skin-adhesive layer 1 has ventilation holes 14 inside, and the ventilation holes 14 are evenly distributed on the surface of the skin-adhesive layer 1.

[0032] The design of the 14 vents can effectively enhance air circulation between the skin-adhesive layer and the skin contact area, reducing local skin stuffiness and dampness caused by prolonged contact.

[0033] The bottom of the skin-adhesive layer 1 is covered with release paper 16, and the size of the release paper 16 is adapted to the size of the skin-adhesive layer 1.

[0034] The release paper 16 is designed to protect the skin adhesive layer 1, preventing its adhesive surface from being contaminated or sticking to other objects before use, and ensuring good adhesion during clinical use, thus adhering firmly to the patient's skin surface.

[0035] Among them, two connecting papers 17 are fixedly connected to the outer side of the release paper 16, and the two connecting papers 17 are symmetrical about the center of the release paper 16.

[0036] The design of the two connecting papers 17 makes it easy for medical staff to take the connecting papers 17 and peel the release paper 16 from the bottom of the skin adhesive layer 1.

[0037] The first wristband 18 and the second wristband 19 are fixedly connected to the left and right sides of the fixed layer 2, respectively. An adjustment belt 20 is movably sleeved on the inner surface of the second wristband 19. An adjustment hole 23 is opened inside both the adjustment belt 20 and the second wristband 19. A connecting belt 24 is movably installed on the outer side of the second wristband 19. A buckle 25 is snapped into the inside of the connecting belt 24. The outer surface of the buckle 25 is movably sleeved with the inner surface of the adjustment hole 23.

[0038] Pull the connecting strap 24 to separate it from the buckle 25, and then pull the buckle 25 out of the adjustment hole 23 to release the lock on the adjustment strap 20. At this time, pull the adjustment strap 20 outward to adjust the length, thereby adapting to arms of different thicknesses and expanding the applicability of the first wrist strap 18, the second wrist strap 19 and the adjustment strap 20.

[0039] The top of the first wristband 18 is fixedly connected to a first Velcro 21, and the bottom of the adjustment strap 20 is fixedly connected to a second Velcro 22.

[0040] The first Velcro 21 and the second Velcro 22 are bonded together to fix the adjustment strap 20 to the first wrist strap 18, thereby fixing the indwelling needle.

[0041] The top of the skin-adhesive layer 1 is fixedly connected with a third hook and loop fastener 26, and the bottom of the fixing layer 2 is fixedly connected with a fourth hook and loop fastener 27. The third hook and loop fastener 26 and the fourth hook and loop fastener 27 are bonded together.

[0042] This design allows the entire structure above the fixing layer 2 to be separated from the skin-adhesive layer 1 by pulling the fixing layer 2 to release the adhesion between the third hook and loop fastener 26 and the fourth hook and loop fastener 27, thus enabling the entire structure above the fixing layer 2 to be reused.

[0043] The protective layer 5 is made of transparent medical waterproof membrane and covers the control layer 4.

[0044] The design of protective layer 5 can effectively prevent the intrusion of external liquids and play a role in protecting the fixed patch.

[0045] Working principle and usage process:

[0046] When using the fixation patch, first pull the connecting paper 17 to peel off the release paper 16 on the surface of the skin adhesive layer 1, and then attach it to the skin around the patient's indwelling needle puncture site so that the indwelling needle body passes through the indwelling needle through hole 13. Then, attach the fourth hook and loop fastener 27 below the fixation layer 2 to the third hook and loop fastener 26 above the skin adhesive layer 1. Next, wear the first wristband 18, the second wristband 19 and the adjustment strap 20 along the patient's wrist. With the cooperation of the first hook and loop fastener 21 and the second hook and loop fastener 22, the adjustment strap 20 and the first wristband 18 can be attached together, thereby achieving the purpose of fixing the indwelling needle.

[0047] At this time, the power supply module 12 is activated, and the temperature sensor 6, humidity sensor 7, and microbial sensing unit 8 begin to work, collecting local temperature, skin humidity, and microbial concentration data at the puncture site in real time, and transmitting the data to the microcontroller 9. The microcontroller 9 analyzes and processes the received data, comparing it with the built-in preset thresholds. If all data are within the preset threshold range, the device works normally and no alarm is triggered. If any data exceeds the preset threshold, the microcontroller 9 immediately controls the alarm module 11 to activate the audible alarm, and at the same time transmits the abnormal data to the medical terminal via the wireless transmission module 10, reminding medical staff to check and handle the situation in a timely manner, thus achieving the purpose of monitoring infection and triggering an alarm.

[0048] When the patient needs to remove the indwelling needle, first separate the first wristband 18 and the adjustment band 20, then pull the fixing layer 2 to release the adhesive effect between the third hook and loop fastener 26 and the fourth hook and loop fastener 27. This will separate the entire upper part of the fixing layer 2 from the skin adhesion layer 1, achieving the purpose of reusing the entire upper part of the fixing layer 2. At the same time, it can release the fixing effect on the indwelling needle, making it easier to remove.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart indwelling needle fixation patch capable of monitoring infection and triggering an alarm, comprising a skin-adhesive layer (1), characterized in that: The skin-adhesive layer (1) is provided with a fixing layer (2), a monitoring layer (3), a control layer (4) and a protective layer (5) from bottom to top. The fixing layer (2), monitoring layer (3), control layer (4) and protective layer (5) are fixedly connected to each other by medical-grade adhesive. The monitoring layer (3) is provided with a temperature sensor (6), a humidity sensor (7) and a microbial sensing unit (8). The control layer (4) is provided with a microcontroller (9), a wireless transmission module (10), an alarm module (11) and a power supply module (12). The fixing layer (2) is provided with a monitoring hole (15). The detection ends of the temperature sensor (6), humidity sensor (7) and microbial sensing unit (8) pass through the monitoring hole (15) and are close to the skin-adhesive layer (1). The microcontroller (9) is electrically connected to the temperature sensor (6), humidity sensor (7), microbial sensing unit (8), wireless transmission module (10), alarm module (11) and power supply module (12) respectively.

2. The intelligent indwelling needle fixation patch capable of monitoring infection and triggering alarms according to claim 1, characterized in that: The skin adhesive layer (1) has an indwelling needle through hole (13) inside, and the indwelling needle through hole (13) is circular in appearance.

3. The intelligent indwelling needle fixation patch capable of monitoring infection and triggering alarms according to claim 1, characterized in that: The skin-adhesive layer (1) has ventilation holes (14) inside, and the ventilation holes (14) are evenly distributed on the surface of the skin-adhesive layer (1).

4. The intelligent indwelling needle fixation patch capable of monitoring infection and triggering an alarm according to claim 1, characterized in that: The bottom of the skin-adhesive layer (1) is covered with release paper (16), the size of which is adapted to the size of the skin-adhesive layer (1).

5. The intelligent indwelling needle fixation patch capable of monitoring infection and triggering an alarm according to claim 4, characterized in that: The release paper (16) is fixedly connected to the outside of the release paper (16). There are two connecting papers (17), and the two connecting papers (17) are symmetrical about the center of the release paper (16).

6. The intelligent indwelling needle fixation patch capable of monitoring infection and triggering alarms according to claim 1, characterized in that: The first wristband (18) and the second wristband (19) are fixedly connected to the left and right sides of the fixed layer (2), respectively. An adjustment belt (20) is movably sleeved on the inner surface of the second wristband (19). An adjustment hole (23) is opened inside the adjustment belt (20) and the second wristband (19). A connecting belt (24) is movably installed on the outer side of the second wristband (19). A buckle (25) is snapped inside the connecting belt (24). The outer surface of the buckle (25) is movably sleeved with the inner surface of the adjustment hole (23).

7. The intelligent indwelling needle fixation patch capable of monitoring infection and triggering an alarm according to claim 6, characterized in that: The top of the first wristband (18) is fixedly connected to a first Velcro (21), and the bottom of the adjustment band (20) is fixedly connected to a second Velcro (22).

8. The intelligent indwelling needle fixation patch capable of monitoring infection and triggering alarms according to claim 1, characterized in that: The top of the skin-adhesive layer (1) is fixedly connected to a third hook and loop fastener (26), and the bottom of the fixing layer (2) is fixedly connected to a fourth hook and loop fastener (27). The third hook and loop fastener (26) and the fourth hook and loop fastener (27) are bonded together.

9. The intelligent indwelling needle fixation patch capable of monitoring infection and triggering an alarm according to claim 1, characterized in that: The protective layer (5) is a transparent medical waterproof membrane, which covers the control layer (4).

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