A thoracic surgery nursing thoracic duct fixing device

Abstract

The application discloses a thoracic surgery nursing thoracic cavity pipeline fixing device, and belongs to the technical field of medical thoracic surgery, which comprises a fixing part, a pipeline fixing part, a detecting part, a pipeline structure and a winding and unwinding structure. The fixing part is used for fixing around the chest of a patient, and comprises a left adhesive plaster, a right adhesive plaster and a fixing belt connected between the two adhesive plasters. A limiting frame is arranged in the middle of the fixing belt. The pipeline fixing part is arranged in the limiting frame, and comprises a skin adhesive plaster and a pipeline fixing cone fixed on the skin adhesive plaster. The pipeline fixing cone is provided with a through channel, and an air bag is arranged on the inner wall of the pipeline fixing cone. The air bag is connected with an opening and closing plug. The pipeline fixing device can reliably maintain the initial angle of the pipeline after being drawn out from the skin, prevents pain and injury caused by frequent bending of the root of the pipeline, and physically limits the abnormal movement of the pipeline to the direction of the chest incision. The stable skin adhesion realized by the skin adhesive plaster and the adhesive tapes on the two sides of the skin adhesive plaster ensures the stability of the root of the drainage pipeline, and reduces the pulling and stimulation of the pipeline to the wound from the source.

Description

Technical Field

[0001] This invention belongs to the field of medical thoracic surgery technology, and in particular, it is a thoracic cavity tube fixation device for thoracic surgery nursing. Background Technology

[0002] In postoperative care of thoracic surgery, reliable fixation and unobstructed drainage of the chest drainage tube, along with monitoring of wound exudate, are crucial for determining the quality of patient recovery and preventing complications. Clinically, the traditional fixation method of sutures and tape has long been relied upon, which has inherent drawbacks such as passive fixation, lack of monitoring, and limited patient mobility. In recent years, although some patented technologies have emerged aimed at improving fixation methods, none have systematically solved the aforementioned problems, specifically in the following aspects: Existing technologies mostly employ rigid or semi-rigid structures to clamp or bind drainage tubes. For example, patent CN202021499243.1 and a thoracic tube fixation device for thoracic surgery care use a clamping ring and a mechanical alarm mechanism. When the tube is pulled, an alarm is triggered. However, the fixation method is still rigid or point contact, which can easily cause local flattening of the drainage tube or skin pressure injury to the patient. Secondly, its alarm is only a passive response and cannot provide early warning when the tube bends, which may lead to poor drainage. Thirdly, its structure is complex and does not consider how to maintain a gentle angle at the point where the tube exits from the skin (the root). When the patient moves, the root of the tube may still bend at an acute angle, causing pain and local tissue damage.

[0003] Another patent, CN221286583U, describes a drainage tube protection device for thoracic drainage. It uses a spiral ring and a threaded cone sleeve to fix the tube, aiming to prevent bending. However, the adjustment of its fixing force depends on manually tightening the threads, making it difficult to achieve uniform, flexible, and adaptive locking. It also cannot monitor and dynamically adjust the tube shape in real time.

[0004] In clinical practice, postoperative wound exudation is a significant early sign of infection and poor healing, while tubing kinking is a direct cause of poor drainage. Currently, most fixation devices, including those mentioned in the patent, lack active monitoring capabilities for such critical risks. Nursing care relies entirely on nurses' regular manual rounds, creating blind spots in monitoring. Especially for patients unable to check their lateral chest incisions themselves, or during nighttime rounds, exudation or tubing kinking due to pressure may go undetected and untreated, delaying intervention and increasing the risk of complications such as infection and subcutaneous emphysema.

[0005] Early postoperative mobilization is crucial for accelerating recovery, but this activity inevitably leads to traction or redundant bending of the drainage tube. Existing patents, such as CN202021499243.1 and a thoracic tube fixation device for thoracic surgery care, only issue an alarm when traction is detected, but cannot automatically take corrective measures, requiring manual adjustment by medical staff. Other designs using elastic elements allow the tube to be pulled, but cannot actively retract excess tubing before dangerous bending occurs, and lack a mechanism for synchronously managing sensor cables, easily leading to cable tangling, loosening, or sensor failure. Another patent, CN120550309A, and an anti-dislodgement and anti-leakage thoracic and abdominal drainage auxiliary device, while introducing an airbag to improve fixation and anti-leakage capabilities, primarily adapts to the skin thickness of different patients' intubation sites, without addressing the fixation and restriction of the external tubing's shape, thus failing to resolve the issue of balancing patient freedom of movement with tubing safety and patency.

[0006] The purpose of this invention is to provide a thoracic tube fixation device for thoracic surgery nursing, so as to solve the problems mentioned in the background art. Summary of the Invention

[0007] The purpose of this invention is to provide a thoracic tube fixation device for thoracic surgery nursing, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a thoracic tube fixation device for thoracic surgical nursing, comprising a fixation part, a tube fixing component, a detection part, a tube structure, and a retraction structure: The fixing part is used to fix the patient's chest, and it includes a left patch, a right patch, and a fixing strap connecting the two. The fixing strap has a limiting frame in the middle. The fixed tube fitting is disposed within the limiting frame and includes an adhesive patch and a fixed tube cone fixed thereon. The fixed tube cone has a through channel and an air bladder is disposed on its inner wall. The air bladder is connected to an opening and closing plug. The detection unit includes a water immersion sensor and a wire with an integrated fiber optic sensor. The wire passes through the channel of the solid tube cone, and one end of its internal wire is connected to the water immersion sensor. The tube structure includes a tube body that passes through the channel of the fixed tube cone. A fixing ring is provided on its outer wall. A traveling frame is connected to the fixing ring. Traveling teeth are provided on the inner side of the traveling frame. The retractable structure includes a housing and a drive unit disposed therein. The drive unit includes a drive motor. A tube gear and a linear gear are coaxially disposed on the output shaft of the drive motor. The tube and the wire pass through the drive unit, the tube gear meshes with the traveling gear to drive the tube to move; the wire gear is connected to the clamping roller through the driven tooth, and the wire passes between a pair of clamping rollers to be driven synchronously.

[0009] Furthermore: the outer wall of the left patch is provided with a Velcro insert, and the inner wall of the right patch is provided with a Velcro mother. The left and right patches are bonded together by the Velcro insert and the Velcro mother and wrap around the human chest.

[0010] Furthermore: adhesive tape for reinforcing skin fixation is bonded to both sides of the outer wall of the adhesive patch; the fixing cone is made of TPE material.

[0011] Furthermore: the wire is attached and fixed to the outer wall of the tube, and the water immersion sensor is disposed at the end of the wire.

[0012] Furthermore: the line is attached and fixed to the outer wall of the tube.

[0013] Furthermore, the retractable structure also includes a rear frame disposed at the rear end of the housing, the bottom of the rear frame is provided with a slide rail, a slider is slidably mounted on the slide rail, and the end of the line is connected to the slider.

[0014] Furthermore, the slider is also connected to a transmission line, which is a flexible circuit.

[0015] Furthermore, the drive motor is a servo motor without an electromagnetic brake.

[0016] Furthermore, the top of the housing is provided with a hoop for fixing the housing to the bed rail, and the front end of the housing is provided with a wiring hole.

[0017] Furthermore: there are multiple airbags arranged circumferentially along the inner wall of the solid tube cone. After inflation, they expand evenly from all sides to simultaneously compress and lock the tube and the thread that pass through.

[0018] Compared with the prior art, the present invention has the following beneficial effects: This device, through the setting of the fixing part and the fixing fitting, provides a stable body attachment base by using Velcro and Velcro to adhere the left and right sides of the fixing part around the chest. The fixing band in the middle and the limiting frame on it strictly limit the range of motion of the fixing fitting within a plane, preventing it from sliding or rotating, thus creating conditions for subsequent fixation. The fixing cone of the fixing fitting has an air bladder. After being inflated by opening and closing the plug, the air bladder expands and evenly presses the tube and thread passing through from all sides. The flexible contact surface increases the frictional resistance and achieves self-adaptive locking, avoiding the tube flattening or damage that may be caused by rigid clamping. Moreover, the fixing cone made of TPE material itself has a certain rigidity, which can reliably maintain the initial angle of the tube after it is brought out from the skin, preventing pain and damage caused by frequent bending of the tube root. Its structure can physically limit the abnormal movement of the tube towards the chest incision. Combined with the skin patch and the adhesive tape on both sides, it achieves a firm skin adhesion, ensuring the stability of the drainage tube root and reducing the traction and stimulation of the wound by the tube from the source.

[0019] This device, through multiple sensors integrated into the detection unit, enables real-time proactive monitoring of wound exudate and tubing morphology, transforming the nursing model from reactive to proactive. Since chest incisions are located on the side of the body, they are difficult for patients to observe, and patients visiting alone may not easily notice problems. By using a water immersion sensor connected to the end of the suture and attached to the chest incision with medical tape, the sensor immediately detects the fluid and issues an alarm once secretions or exudate appear. Medical staff can intervene before the exudate soaks through the dressing, increasing the risk of infection, greatly improving proactive nursing care and infection control capabilities. Simultaneously, fiber optic sensors embedded in the suture structure continuously sense the bending status of the suture and its attached tubing. When the patient gets up or moves, causing the tubing to bend in a way that might affect drainage, or when there is a risk of accidental pulling, the fiber optic sensor immediately detects this bending deformation. This signal not only triggers automatic adjustment but also serves as a safety alarm, indicating that the tubing may be in a state of poor drainage or high risk.

[0020] The device's retraction and extension structure automatically manages the tubing's movement based on feedback from monitoring sensors. When the fiber optic sensor detects an excessive bending signal, the drive motor starts, driving the tubing to move linearly through the meshing of the tube gear with the traveling teeth on the traveling frame. Simultaneously, the wire gear and driven teeth drive the clamping roller to rotate, pulling the wire synchronously. This ensures that the tubing and its attached monitoring wire always move in tandem and maintain the same length, preventing tangling, pulling, or detachment of the sensor wire due to length differences. Furthermore, the device uses a servo motor without an electromagnetic brake as its power source. Therefore, when the patient actively moves and pulls the tubing, the motor does not create mechanical self-locking, thus avoiding resistance in the opposite direction. Instead, it allows the tubing to be safely pulled out, preventing conflict between the device and the patient's movements and ensuring the patient's freedom and safety. At the end of the wire's path, a slider and rail structure connects it to the transmission line. During retraction and extension, the slider drives the connection point to slide along the rail, ensuring the wire remains smooth at this point and eliminating bending at the wire's end, thus improving the accuracy of the fiber optic sensor's detection signal. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the fixing part structure of the present invention; Figure 2This is a schematic diagram of the detection unit and tube structure in this invention; Figure 3 This is a schematic diagram of the retraction and extension structure in this invention; Figure 4 This is a schematic diagram of the drive unit structure in the present invention; Figure 5 This is a schematic diagram of the rear frame structure in this invention; Figure 6 This is a schematic diagram of the linear structure in this invention; Figure 7 This is a schematic diagram showing the pipe structure and the corresponding fixing component passing through the line in this invention; Figure 8 This is a schematic diagram of the fixing part structure in this invention.

[0023] Explanation of reference numerals in the attached figures: In the picture: 1. Fixing part; 11. Left adhesive; 111. Velcro; 12. Fixing strap; 121. Limiting frame; 13. Right adhesive; 131. Velcro; 2. Pipe fixing fitting; 21. Skin adhesive; 22. Pipe fixing cone; 23. Airbag; 24. Opening and closing plug; 3. Detection part; 31. Water immersion sensor; 32. Line body; 321. Fiber optic sensor; 322. Wire; 4. Pipe structure; 41. Pipe body; 42. Fixing ring; 43. Traveling gear; 44. Traveling frame; 5. Retraction and extension structure; 51. Housing; 52. Ring clamp; 53. Rear frame; 531. Slider; 532. Slide rail; 533. Transmission line; 54. Drive part; 541. Drive motor; 542. Pipe gear; 543. Wire clamping roller; 544. Wire gear; 545. Driven gear; 55. Wiring hole; 6. Adhesive tape. Detailed Implementation

[0024] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0025] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this invention, and are explained here together.

[0026] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0027] Please see Figures 1 to 8As shown, a thoracic tube fixation device for thoracic surgery nursing includes a fixation part 1, a tube fixing component 2, a detection part 3, a tube structure 4, and a retraction structure 5; The fixation part 1 is worn on the patient's body. The left patch 11 on the left side and the right patch 13 on the right side are glued and fixed around the patient's chest by sewn Velcro tabs 111 and Velcro tabs 131. The fit is adjustable and more comfortable. The fixation strap 12 connecting the left patch 11 and the right patch 13 crosses the front or side of the chest. A rectangular limiting frame 121 is provided in the middle. This limiting frame 121 is not used to directly clamp the tube. Its core function is to accommodate and restrict the fixation part 2. It allows the fixation part 2 to slide back and forth and up and down within the frame, but prevents it from swinging left and right or rotating. This allows the fixation part 2 to have a certain degree of compliance with breathing and body micro-movements, but it also restricts its overall range of motion within a controllable plane.

[0028] The main body of the fixed pipe fitting 2 is a fixed pipe cone 22 made of TPE (thermoplastic elastomer) material. TPE material has both necessary hardness and flexibility, which can provide a supporting structure without being hard and uncomfortable. The conical cavity of the fixed pipe cone 22 penetrates the pipe structure 4 and the line 32.

[0029] Multiple inwardly compressive air bladders 23 are provided on the inner wall of the tube cone 22. Through the opening and closing plugs 24 on its side (such as one-way valves), small air bladders 23 or syringes can be used to inflate the air bladders 23. After inflation, the air bladders 23 expand evenly from all sides, gently and tightly wrapping and pressing the internal tube structure 4 and the liner 32, thereby increasing the frictional resistance and fixing the tube structure 4. At the same time, it avoids the tube collapsing, deformation or patient skin injury that may be caused by traditional buckles or straps.

[0030] The shape and rigidity of the tube conical tip 22 can maintain the tube structure 4 at a preset safe angle from the point where it exits the skin, preventing the tube from bending at an acute angle at the root, which is the main cause of pain and local skin damage. At the same time, its structural shape can physically prevent the tube from moving accidentally towards the chest wall wound. The bottom of the tube conical tip 22 is fixed to a large area with an adhesive patch 21, which is attached to the patient's skin. Medical tape 6 can also be added to both sides to strengthen the fixation, which together ensures the stability of the entire tube component 2 and the root of the tube, reducing the pulling force caused by body movement from the source.

[0031] The detection unit 3 contains two types of sensors, which are connected and integrated with signal wires 322 via a flexible wire 32.

[0032] The water immersion sensor 31 is located at the end of the liner 32 and is securely attached to the edge or below the surgical incision dressing on the chest using medical tape 6. It continuously monitors for abnormal exudation (such as bloody or serous fluid) around the wound. Once fluid is detected, the water immersion sensor triggers a signal. This is particularly important for patients hospitalized alone or unable to examine their wounds themselves, enabling 24-hour uninterrupted leakage monitoring and allowing nurses to address the issue promptly before exudate soaks through the outer dressing and increases the risk of infection.

[0033] The fiber optic sensor 321 is embedded within the liner 32, which is fitted and fixed to the outer wall of the tube 41, running parallel to it. When the patient moves (such as getting up or turning over), causing the tube 41 and liner 32 to bend, the fiber optic sensor 321 can sensitively detect the curvature and location of the bend. This bend signal has a dual meaning: first, it is an early warning of poor drainage, as excessive bending can obstruct drainage; second, it is a command to adjust the tube length.

[0034] The tube structure 4 enables it to interact with the retractable structure 5. A fixed ring 42 is fitted on its outside, and a traveling frame 44 is connected to the outside of the ring. The traveling frame 44 has rack-shaped traveling teeth 43 inside, so the tube body 41, the fixed ring 42, and the traveling frame 44 are linked together. When the traveling frame 44 is driven, it drives the tube body 41 to move linearly as a whole.

[0035] The retractable structure 5 is an independent unit, and its housing 51 is usually fixed to the headboard of the hospital bed by a ring 52 on top. Inside, there is a drive unit 54 through which the tubing structure 4 and the cable 32 pass, and it is externally connected to a rear frame 53.

[0036] The core of the drive unit 54 is a drive motor 541, preferably a servo motor without an electromagnetic brake. Two gears, a tube gear 542 and a linear gear 544, are coaxially mounted on the output shaft of the drive motor 541.

[0037] The tube gear 542 meshes with the traveling gear 43 in the traveling frame 44 of the tube body 41. When the drive motor 541 rotates, it drives the traveling gear 43 in the traveling frame 44 to mesh and move, thereby controlling the extension or retraction length of the tube body 41.

[0038] The linear gear 544 meshes with a driven gear 545, which drives one of the pair of wire-clamping rollers 543 to rotate. The fiber optic sensor 321's wire passes between the pair of wire-clamping rollers 543. As the wire-clamping roller 543 rotates, the wire 32 is simultaneously wound up and unwound by friction.

[0039] Since the tube gear 542 and the line gear 544 are coaxial, it ensures that the length of the tube body 41 and the sensor line 32 is synchronized at all times. This avoids pulling, tangling or loosening and falling off of the sensor line 32 due to the asynchronous length of the two, which is the key to the reliable operation of the system.

[0040] The use of a special servo motor ensures that when the patient actively and quickly pulls the tube 41 (such as when suddenly sitting up), the motor shaft can be driven to rotate by external force without stalling or generating reverse resistance. This guarantees that the device will never oppose the patient's voluntary movements, eliminates the risk of being forcibly pulled off, and ensures safety.

[0041] After the cable 32 enters the take-up and extend structure 5, its end is connected to a slider 531, which slides on a slide rail 532 at the bottom of the rear frame 53. The electrical signal of the cable 32 is connected to the slider 531 through a flexible transmission line 533. During take-up and extend, the slider 531 slides with the cable 32, ensuring that the cable 32 remains straight and without any bends during the distance it travels to the fixed point, thereby protecting the internal fiber optic sensor 321 and ensuring long-term stability and accuracy of signal transmission.

[0042] The fiber optic sensor 321 continuously monitors the pipe curvature. When the curvature exceeds a preset safety threshold (indicating that the pipe may be bent or there is a risk of tension), the system determines that adjustment is required.

[0043] The built-in controller immediately starts the drive motor 541, which drives the tube gear 542 and the linear gear 544 to rotate synchronously. The direction of rotation is determined according to the preset program, usually by retracting a section of the pipeline to reduce the redundant length of the pipeline outside the bed and restore it to a straight state.

[0044] During the coiling process, the slider 531 moves accordingly on the slide rail 532 to protect the end of the wire 32. When the bending degree fed back by the fiber optic sensor 321 returns to the safe range, the motor stops working.

[0045] Independent alarm: The water immersion sensor 31 forms an independent alarm loop. Once triggered, it will directly illuminate the warning light and activate the buzzer to issue an audible and visual alarm, notifying medical staff to handle the situation. This alarm has the highest priority. Its main clinical problems are: This reduces the risk of complications such as accidental tube dislodgement, poor drainage, and incision infection caused by improper fixation, thus lowering the risk of complications.

[0046] Automated monitoring and alarms reduce the workload of nurses who frequently manually check tubing and dressings, making nursing work more efficient and reducing nurses' workload.

[0047] It can reduce pain, increase patients' confidence and freedom of movement in bed, accelerate the recovery process, and improve the patient experience.

[0048] Provides objective data on pipeline status and alarm events for nursing records, facilitating analysis and quality improvement.

[0049] This device can serve as an enhancement module to the existing standard postoperative care procedures for thoracic surgery. After connecting the drainage bottle, the nurse follows the steps of putting on the fixation device 1, installing the fixing fitting 2, attaching the sensor, and finally passing the tube 41 and the suture 32 through the retraction structure 5 and securing it to the head of the bed.

[0050] The training for nurses focuses on the correct placement of sensors, the appropriate judgment of the pressure of the airbag 23 (ideally, the tube should be able to be pinched and slightly slipped), and the meaning and handling procedures of alarm signals.

[0051] Although the device has certain hardware costs, these can be offset by reducing additional treatment costs due to complications, shortening hospital stays, and increasing ward turnover, making it economically beneficial in the long run.

[0052] The following issues also need to be considered: To address patient body fit issues, prepare fixation straps 12 and skin patches 21 in different sizes (such as S / M / L) to ensure that patients of all body types can wear them comfortably.

[0053] Regarding the issue of equipment cleaning and disinfection, the parts in the structure that come into contact with patients, such as the fixed part 1 and the fixed pipe fitting 2, are made of detachable materials that can withstand ethylene oxide disinfection, so as to achieve one-person-one-use-one-disinfection.

[0054] For safety reasons, the retractable structure 5 uses a low-voltage DC power supply and is connected to a bedside backup power supply via wiring hole 55 to ensure continued operation during power outages. The entire circuit design complies with medical electrical equipment safety standards.

[0055] To address the issue of false alarms, algorithms are used to set reasonable sensor trigger delays and thresholds, and these are calibrated in conjunction with clinical scenarios. For example, this can differentiate between a patient slowly turning over and a sharp bend where a tube is caught, thus minimizing false alarms.

[0056] Working principle: The fixation part 1 is bonded to the patient's chest via its left patch 11 and right patch 13, forming a stable body attachment base. The limiting frame 121 in the middle of the fixation strap 12 connecting the two patches constitutes a key mechanical restraint interface.

[0057] The fixed tube component 2 serves as a direct fixation of the tube structure 4 and the line 32. It requires the cooperation of the internally surrounding airbag 23. The airbag 23 is inflated by the opening and closing plug 24. The airbag 23 expands flexibly and evenly presses the tube 41 and line 32 passing through from all sides, generating uniform and adjustable frictional resistance. The skin patch 21 and its auxiliary adhesive tape 6 at the bottom of the fixed tube cone 22 firmly adhere the entire fixed tube component 2 to the skin. Simultaneously, the water immersion sensor 31 is placed near the surgical incision on the chest. Once abnormal seepage (such as blood or exudate) occurs at the wound, the liquid contact sensor will trigger a high-priority alarm signal.

[0058] The water immersion sensor 31 also incorporates an embedded fiber optic sensor 321 within its cable 32. Because it is attached parallel to the tube 41, it can detect the bending deformation of the tube in real time. When the patient performs significant movements such as getting up or turning over, the tube may bend excessively (reaching or exceeding a preset safety threshold). The fiber optic sensor 321 immediately converts this bending deformation signal into an electrical signal. This signal has a dual function: firstly, it serves as a direct safety alarm, indicating potential drainage obstruction or traction risk in the current tube; secondly, it serves as a decision input signal to trigger the actuator.

[0059] When the fiber optic sensor 321 detects excessive bending in the pipeline, the retraction structure 5 responds with an action.

[0060] Upon receiving a bending signal, the controller immediately activates the drive motor 541. The motor's rotation direction is preset to tighten the pipe (i.e., retract a section of pipe 41) to reduce the redundant length of the outer section, thereby eliminating excessive bending. A tube gear 542 and a linear gear 544 are coaxially fixed on the output shaft of the drive motor 541. The tube gear 542 meshes with the traveling gear 43 inside the traveling frame 44 of the pipe 41. When the drive motor 541 rotates, it drives the traveling gear 43 in the traveling frame 44 to mesh and move, thereby controlling the extension or retraction length of the pipe 41.

[0061] Synchronously, the linear gear 544 rotates, driving the driven gear 545 and the connected wire-clamping roller 543 to rotate. The sensor wire 32, passing between a pair of wire-clamping rollers 543, is synchronously pulled and moved under the action of friction.

[0062] Since the tube gear 542 and the linear gear 544 are coaxial, it ensures that the displacement of the tube body 41 and the winding and unwinding length of the linear body 32 are completely consistent at all times.

[0063] The electromagnetic brake-free servo motor has unique compliance. When the patient's movements are faster than the device's response and the patient actively pulls the tubing outward, the motor shaft can be driven to rotate by external force without generating reverse resistance or locking, thus avoiding the risk of accidental tubing dislodgement caused by the device and the patient resisting each other.

[0064] During the take-up and take-down process, the slider 531 connected to the end of the cable 32 slides synchronously on the slide rail 532. As a result, the cable 32 remains straight until it enters the fixed point of the take-up and take-down structure 5, eliminating interference and potential damage to the signal of the internal fiber optic sensor 321 caused by the tail bending.

[0065] When the pipeline is retracted into place and the bend detected by the fiber optic sensor 321 returns to within the safe threshold, the feedback signal causes the drive motor 541 to stop working and enter a new steady-state monitoring phase. The alarm from the water immersion sensor 31 operates independently, continuously monitoring until the problem is manually resolved.

[0066] It should be noted that, in this document, relational terms such as "one" and "two" are used merely 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 a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0067] 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 thoracic tube fixation device for thoracic surgery nursing, comprising a fixation part (1), a tube fixing component (2), a detection part (3), a tube structure (4), and a retraction structure (5): The fixing part (1) is used to fix the patient's chest, and includes a left patch (11), a right patch (13), and a fixing strap (12) connecting the two. The fixing strap (12) has a limiting frame (121) in the middle. The fixed tube component (2) is disposed within the limiting frame (121) and includes an adhesive patch (21) and a fixed tube cone (22) fixed thereon. The fixed tube cone (22) has a through channel and an airbag (23) is disposed on its inner wall. The airbag (23) is connected to an opening and closing plug (24). The detection unit (3) includes a water immersion sensor (31) and a wire (32) with an integrated fiber optic sensor (321). The wire (32) passes through the channel of the solid tube cone (22), and one end of its internal wire (322) is connected to the water immersion sensor (31). The tube structure (4) includes a tube body (41), which is inserted into the channel of the fixed tube cone (22). A fixing ring (42) is provided on its outer wall. The fixing ring (42) is connected to a walking frame (44), and the walking frame (44) is provided with walking teeth (43) on its inner side. The retractable structure (5) includes a housing (51) and a drive unit (54) disposed therein. The drive unit (54) includes a drive motor (541), and a tube gear (542) and a spur gear (544) are coaxially disposed on the output shaft of the drive motor (541). The tube (41) and the line (32) pass through the drive unit (54), the tube gear (542) meshes with the traveling gear (43) to drive the tube (41) to move; the line gear (544) is connected to the clamping roller (543) through the driven gear (545), and the line (32) passes between a pair of clamping rollers (543) to be driven synchronously.

2. The thoracic cavity tube fixation device for thoracic surgery nursing according to claim 1, characterized in that: The outer wall of the left sticker (11) is provided with a magic strip (111), and the inner wall of the right sticker (13) is provided with a magic strip (131). The left sticker (11) and the right sticker (13) are bonded together by the magic strip (111) and the magic strip (131) and are wrapped around the chest of the human body.

3. The thoracic cavity tube fixation device for thoracic surgical nursing according to claim 2, characterized in that: The skin patch (21) has adhesive tape (6) bonded to both sides of its outer wall for reinforcing skin fixation; the tube cone (22) is made of TPE material.

4. The thoracic cavity tube fixation device for thoracic surgical nursing according to claim 1, characterized in that: The wire (32) is attached to and fixed to the outer wall of the tube (41), and the water immersion sensor (31) is disposed at the end of the wire (32).

5. A thoracic cavity tube fixation device for thoracic surgical nursing according to claim 1, characterized in that: The line (32) is attached to and fixed to the outer wall of the tube (41).

6. The thoracic cavity tube fixation device for thoracic surgical nursing according to claim 1, characterized in that: The retractable structure (5) also includes a rear frame (53) located at the rear end of the housing (51). The bottom of the rear frame (53) is provided with a slide rail (532), and a slider (531) is slidably mounted on the slide rail (532). The end of the line (32) is connected to the slider (531).

7. A thoracic cavity tube fixation device for thoracic surgical nursing according to claim 6, characterized in that: The slider (531) is also connected to a transmission line (533), which is a flexible line.

8. A thoracic cavity tube fixation device for thoracic surgical nursing according to claim 1, characterized in that: The drive motor (541) is a servo motor without an electromagnetic brake.

9. A thoracic cavity tube fixation device for thoracic surgical nursing according to claim 1, characterized in that: The top of the housing (51) is provided with a hoop (52) for fixing the housing (51) to the bed rail, and the front end of the housing (51) is provided with a wiring hole (55).

10. A thoracic cavity tube fixation device for thoracic surgical nursing according to claim 1, characterized in that: The airbags (23) are multiple and arranged circumferentially along the inner wall of the solid tube cone (22). After being inflated, they expand evenly from all sides to simultaneously squeeze and lock the tube (41) and the line (32) that pass through.

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