Catheter fixing device with intelligent pressure alarm function

Abstract

The invention discloses a catheter fixing device with an intelligent pressure alarm function, and relates to the technical field of catheter fixing. The pressure sensing element alarm is used for monitoring the pressed state of the drainage tube in real time, and when the catheter is distorted, pressed or the traction force exceeds a preset threshold value, sound-light alarm is automatically triggered, so that medical staff are helped to find the risk of tube blockage or non-planned tube drawing at the first time, and complications such as infection and tissue damage caused by unsmooth drainage are avoided; a medical-grade adhesive layer and anti-skid textures of the fixed base ensure the skin fitting firmness, and the traction force of the catheter is effectively dispersed in combination with a double-locking structure of the fixed clamping groove and the magnetic type fixed cover; the double-color LED indicating lamp visually displays the state of the catheter (normal green / alarm red), remote inspection is facilitated, the workload of medical staff is relieved, and the nursing quality and the safety of a patient are improved.

Description

Technical Field

[0001] This invention relates to the field of catheter fixation technology, and more specifically to a catheter fixation device with intelligent pressure alarm function. Background Technology

[0002] A drainage tube, also known as a drainage catheter, is a tube inserted into a body cavity, interstitial space, organ, or wound site through surgery or puncture. It is used to drain fluids, gases, or necrotic tissue, prevent postoperative infection, promote wound healing, and monitor the patient's condition; it is a common surgical treatment. Clinically, it is necessary to monitor the amount of drainage fluid, prevent the catheter from becoming kinked, twisted, or compressed, which could prevent drainage, and also to prevent unplanned extubation, which could lead to worsening of the patient's condition, prolonged hospital stay, and increased hospital costs. Unplanned extubation refers to the patient's unauthorized removal of the drainage tube without the consent of medical staff or when the indications for extubation are not met. This includes accidental removal due to improper operation by medical staff; excessive traction caused by the patient's daily activities is also a significant cause of unplanned extubation.

[0003] Currently, surgical drainage tubes in clinical practice generally rely on suture fixation as a primary method. Surgical sutures are used to secure the drainage tube to the skin around its opening, supplemented by various new medical dressings such as medical tape and hydrocolloid dressings for secondary fixation. However, relying solely on this fixation method still carries a risk of unplanned tube removal in practical applications. For example, when patients turn over, get out of bed, or move around in bed, the tube may be pulled, leading to unplanned removal. Therefore, improvements are needed. Simultaneously, issues such as catheter kinking, twisting, and pressure causing drainage failure or tube blockage also require improvement. To address these issues, we propose a catheter fixation device with an intelligent pressure alarm function. Summary of the Invention

[0004] The purpose of this invention is to provide a catheter fixation device with intelligent pressure alarm function in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0006] A catheter fixing device with intelligent pressure alarm function includes: an adhesive fixing base, a plurality of fixing slots detachably provided on the upper surface of the fixing base, a fixing cover above each fixing slot, both ends of the fixing cover integrating a pressure sensing element alarm, and an alarm indicator light provided on the rear side of the fixing slot.

[0007] Furthermore, the adhesive layer at the bottom of the fixing base is made of medical-grade pressure-sensitive adhesive and is covered with a peelable protective film, and the edges of the fixing base are provided with anti-slip texture.

[0008] Furthermore, the fixed base has a built-in button battery compartment for powering the entire system.

[0009] Furthermore, the fixing cover is detachably connected to the fixing slot via a magnetic structure, which enables the quick insertion and locking of the drainage tube, and the inner side of the fixing cover is integrated with a soft silicone cushioning pad.

[0010] Furthermore, the bottom of the fixing slot is designed with a drainage channel to drain any accidentally seeping liquid.

[0011] Furthermore, the outer surface of the fixing cover is covered with an anti-slip silicone layer, and the anti-slip silicone layer is made of an antibacterial material.

[0012] Furthermore, the pressure sensing element alarm is embedded inside both ends of the fixed cover, with its pressure-sensitive element facing the drainage tube pressing area of ​​the fixed slot. When the radial pressure on the drainage tube exceeds a preset threshold, an audible and visual alarm is triggered. The pressure sensing element alarm also has a built-in adjustable pressure threshold knob, allowing medical staff to customize the alarm trigger point according to the patient's needs.

[0013] Furthermore, the alarm indicator light is integrated into the rear edge of the fixed base and is electrically connected to the pressure sensing element alarm through an internal circuit. The circuit system of the alarm indicator light includes a low-power sleep mode, which automatically enters a power-saving state to extend battery life when there is no operation.

[0014] Furthermore, the alarm indicator light is configured as a dual-color LED module, which displays green when there is no obstruction and switches to flashing red when there is an obstruction alarm.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. Intelligent pressure monitoring and real-time alarm function: The pressure alarm of the drainage tube is monitored in real time through the pressure sensing element. When the catheter is twisted, compressed or pulled by a preset threshold, an audible and visual alarm is automatically triggered (red indicator light flashes), which helps medical staff to detect the risk of tube blockage or unplanned tube removal as soon as possible, and avoid complications such as infection and tissue damage caused by poor drainage.

[0017] 2. Dual-safety fixation mechanism: The medical-grade adhesive layer and anti-slip texture of the fixation base ensure a firm fit to the skin. Combined with the double-locking structure of the fixation slot and magnetic fixation cap, it effectively disperses the catheter's pulling force. The soft silicone cushioning pad on the inside reduces local skin pressure while fixing the catheter, significantly reducing the incidence of accidental catheter dislodgement during patient activity.

[0018] 3. Ease of clinical operation: The magnetic fixation cap allows for quick opening and closing with one hand, facilitating the insertion, replacement, or cleaning of the drainage tube; the adjustable pressure threshold knob allows for personalized settings of alarm sensitivity based on the patient's body size, activity level, and catheter type, enhancing applicability.

[0019] 4. Anti-interference and durable design: Drainage channels allow for timely removal of seepage, preventing liquid accumulation from affecting circuit stability; an antibacterial and anti-slip silicone layer reduces the risk of bacterial growth. A low-power sleep mode extends the lifespan of the coin cell battery, ensuring the device can remain in standby mode for over 30 days without operation.

[0020] 5. Visual status feedback: The dual-color LED indicator light intuitively displays the catheter status (green for normal / red for alarm), which facilitates remote inspection, reduces the workload of medical staff, and improves the quality of nursing care and patient safety. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0022] Figure 2 This is a front sectional view of the present invention;

[0023] Figure 3 This is a top view of the present invention.

[0024] Reference numerals: 1. Fixed base; 2. Fixed slot; 3. Fixed cover; 4. Pressure sensing element alarm; 5. Alarm indicator light. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0026] Please see Figure 1 - Figure 3 The present invention provides a catheter fixing device with intelligent pressure alarm function, comprising: a fixing base 1 with adhesive, a plurality of fixing slots 2 detachably provided on the upper surface of the fixing base 1, a fixing cover 3 above each fixing slot 2, both ends of the fixing cover 3 are integrated with pressure sensing element alarm 4, and an alarm indicator light 5 is provided on the rear side of the fixing slot 2.

[0027] The mounting base 1 is used to attach the entire device to the user's skin, ensuring the device remains stable during use and preventing it from falling off due to movement or friction. The mounting base 1 is made of medical-grade silicone material, and its adhesive layer is covered with a removable protective film, which should be removed before use to expose the adhesive surface. The mounting slots 2 are detachably embedded into the upper surface of the mounting base 1 via a snap-fit ​​design. Each mounting slot 2 corresponds to a catheter fixing position, and the slot's interior has an arc-shaped groove to accommodate catheters of different diameters, facilitating quick installation and replacement. The mounting cover 3 is connected to the mounting slots 2 via a magnetic structure and can be opened and closed freely. The pressure sensing element alarm 4 is integrated at both ends of the mounting cover 3, containing a miniature pressure sensor and alarm circuit. When catheter blockage causes pressure to exceed a threshold, the sensor detects in real time and triggers an alarm signal. The alarm indicator light 5 is located on the rear side of the mounting slots 2 and is connected to the pressure sensing element alarm 4 via internal wiring. Under normal operating conditions, the alarm indicator light 5 displays a constant green light, indicating normal device operation; once an alarm is triggered, the indicator light automatically switches to a flashing red mode to alert medical personnel for timely intervention. The entire device is also equipped with a rechargeable lithium battery, with the battery compartment hidden inside the fixed base 1. Through a low-power design, it enters a dormant state when idle, significantly extending its service life.

[0028] In this embodiment, preferably, the adhesive layer at the bottom of the fixing base 1 is made of medical-grade pressure-sensitive adhesive and covered with a peelable protective film, and the edges of the fixing base 1 are provided with anti-slip texture to enhance stability and anti-slip properties during use.

[0029] In this embodiment, preferably, a button battery compartment is embedded inside the fixed base 1 to supply power to the entire system.

[0030] In this embodiment, preferably, the fixing cover 3 is detachably connected to the fixing slot 2 through a magnetic structure, which is used to realize the quick insertion and locking of the drainage tube. The inner side of the fixing cover 3 is integrated with a soft silicone buffer pad to reduce the direct impact force when the drainage tube is under pressure and prevent skin damage.

[0031] In this embodiment, preferably, the bottom of the fixing slot 2 is designed with a drainage channel to drain any accidentally seeping liquid, ensuring the reliability of the device in a humid environment.

[0032] In this embodiment, preferably, the outer surface of the fixing cover 3 is covered with an anti-slip silicone layer, which makes it easy for medical staff to operate steadily in wet or gloved conditions, and the anti-slip silicone layer is made of antibacterial material to reduce the risk of infection.

[0033] In this embodiment, preferably, the pressure-sensitive alarm 4 is embedded inside both ends of the fixed cover 3, with its pressure-sensitive element facing the drainage tube pressing area of ​​the fixed slot 2. When the radial pressure on the drainage tube exceeds a preset threshold, an audible and visual alarm is triggered. The pressure-sensitive alarm 4 also has a built-in adjustable pressure threshold knob, allowing medical personnel to customize the alarm trigger point according to patient needs. Furthermore, the pressure-sensitive alarm 4 uses a high-precision pressure-sensitive sensor to ensure a pressure detection error of less than ±5%. After the alarm is triggered, if the pressure does not return to normal within a preset time, the system automatically upgrades the alarm level to enhance emergency response capabilities. Simultaneously, the alarm 4's knob is designed with scale markings and a locking mechanism to prevent accidental operation. Its outer shell is made of waterproof and dustproof material, perfectly fitting the sealing structure of the fixed cover 3, ensuring stable operation in humid or polluted environments. The alarm 4 is connected to the button battery compartment via an internal circuit, supporting a low-power standby mode to maximize battery life. Medical personnel can perform functional self-tests through an external test interface, facilitating daily maintenance and troubleshooting, further improving the device's reliability and user experience.

[0034] In this embodiment, preferably, the alarm indicator light 5 is integrated into the rear edge of the fixed base 1 and electrically connected to the pressure sensing element alarm 4 via an internal circuit. The circuit system of the alarm indicator light 5 includes a low-power sleep mode, automatically entering a power-saving state to extend battery life when not in use. This provides a real-time, intuitive visual alarm signal. When the pressure sensing element alarm 4 is triggered, the alarm indicator light 5 automatically activates, emitting a bright red or orange flashing light, facilitating rapid identification of abnormal pressure states by medical personnel in complex environments. Furthermore, its low-power sleep mode reduces the current to the microampere level during standby, which, combined with the power supply system of the button battery compartment, significantly extends the overall device's battery life and reduces maintenance frequency.

[0035] In this embodiment, preferably, the alarm indicator light 5 is configured as a dual-color LED module, displaying green when there is no obstruction and switching to flashing red when an obstruction alarm is triggered. The alarm indicator light 5 uses a multi-color LED light source design, displaying a solid green light under normal conditions to indicate device standby. Once the pressure sensing element alarm 4 triggers the alarm, the indicator light 5 immediately switches to a flashing red mode to enhance the visual warning effect. Furthermore, the flashing frequency of the alarm indicator light 5 can be preset and adjusted according to clinical environment needs. For example, slow flashing is used in low-light conditions to save power, while fast flashing is used in strong light environments to increase warning intensity. Its circuit system integrates a photosensitive sensor, which can automatically sense ambient brightness and optimize LED brightness output to ensure clear visual signal visibility under various lighting conditions. Simultaneously, the dual-color LED module maintains microampere-level current consumption in sleep mode, and combined with an intelligent wake-up mechanism, it is immediately activated when the pressure sensing element alarm 4 is triggered, avoiding false alarms or delayed responses. This design not only enhances the immediate identification capability of abnormal states but also further extends battery life through dynamic power management, supporting stable operation of the device during long-term monitoring.

[0036] The working principle and usage procedure of this invention are as follows: When using the device, first remove the removable protective film from the bottom of the fixing base 1, and firmly attach the adhesive layer to the appropriate position on the patient's skin. Then, open the fixing cover 3 and accurately place the drainage tube into the arc-shaped groove of the fixing slot 2, ensuring full contact between the drainage tube and the sensing area of ​​the pressure-sensitive element. When the fixing cover 3 is closed, its magnetic structure automatically attracts and locks, at which point the soft silicone buffer pad adheres to the surface of the catheter, forming a moderate pressure. After the device is powered on, the alarm indicator light 5 displays a constant green light, indicating that the system has entered standby monitoring mode.

[0037] When the radial pressure of the catheter continuously exceeds a preset threshold (e.g., ≥25 mmHg for 3 seconds) due to twisting, compression, or blockage, the miniature sensor of the pressure sensing element alarm 4 immediately detects the abnormality and triggers an audible and visual alarm: the alarm indicator light 5 switches to a red high-frequency flashing mode (e.g., 2Hz), and the built-in buzzer of the alarm 4 emits an 85dB warning sound. Upon detecting the alarm, medical personnel must immediately check the catheter patency and eliminate the source of blockage. Once the pressure value returns to a safe range (<15 mmHg), the device automatically stops the audible alarm, and the alarm indicator light 5 changes from flashing red to solid green, indicating that the system has returned to normal monitoring. If no manual intervention is performed within 30 seconds of the alarm triggering, the device will activate a secondary escalation alarm (e.g., the red indicator light turns continuously lit with intermittent rapid beeping) to enhance emergency response. Routine maintenance can be performed via the test interface for device self-testing. When the battery is depleted, the button battery embedded in the mounting base 1 must be replaced.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A catheter securement device having a smart pressure alarm function, characterized in that, Including: The fixed base (1) with viscosity, the upper surface of the fixed base (1) is detachably provided with a plurality of fixed clamping grooves (2), the upper side of each fixed clamping groove (2) is provided with a fixed cover (3), both ends of the fixed cover (3) are integrated with an inductive pressure element alarm (4), and the rear side of the fixed clamping groove (2) is provided with an alarm indicator light (5).

2. The catheter securement device with intelligent pressure alarm functionality of claim 1, wherein, The viscosity layer of the bottom of the fixed base (1) adopts a medical grade pressure sensitive adhesive and is covered with a peelable protective film, and the edge of the fixed base (1) is provided with an anti-skid texture.

3. The catheter securement device with intelligent pressure alarm functionality of claim 1, wherein, The fixed base (1) is embedded with a button cell compartment for powering the entire system.

4. The catheter securement device with intelligent pressure alarm functionality of claim 1, wherein, The fixed cover (3) is detachably connected with the fixed clamping groove (2) through a magnetic attraction structure, is used for realizing quick placement and locking of the drainage tube, and the inner side of the fixed cover (3) is integrated with a soft silica gel buffer pad.

5. The catheter securement device with intelligent pressure alarm functionality of claim 1, wherein, The bottom of the fixed clamping groove (2) is designed with a drainage channel for draining the liquid accidentally penetrated.

6. The catheter securement device with intelligent pressure alarm functionality of claim 1, wherein, The outer surface of the fixed cover (3) is covered with an anti-skid silica gel layer, and the anti-skid silica gel layer adopts an antibacterial material.

7. The catheter securement device with intelligent pressure alarm functionality of claim 1, wherein, The inductive pressure element alarm (4) is embedded in the inside of both ends of the fixed cover (3), the pressure sensitive element thereof is opposite to the drainage tube pressing area of the fixed clamping groove (2), when the radial pressure borne by the drainage tube exceeds a preset threshold, an audible and light alarm is triggered, and the inductive pressure element alarm (4) is built-in adjustable pressure threshold knob, allowing medical staff to customize the alarm trigger point according to the needs of patients.

8. The catheter securement device with intelligent pressure alarm functionality of claim 1, wherein, The alarm indicator light (5) is integrated on the rear side edge of the fixed base (1) and is electrically connected with the inductive pressure element alarm (4) through an internal circuit, and the circuit system of the alarm indicator light (5) includes a low-power sleep mode, which automatically enters the power saving state to prolong the battery life in the non-operation state.

9. The catheter securement device with intelligent pressure alarm functionality of claim 1, wherein, The alarm indicator light (5) is configured as a double-color LED module, which displays green in the normal state without obstruction and switches to red flashing when there is obstruction alarm.

Images