Drainage tube fixing device

Abstract

The invention relates to a drainage tube fixing device which comprises a fixing body, a clamping portion and an adsorption portion, the clamping portion and the adsorption portion are arranged on the fixing body, a cavity is formed in the middle of the fixing body, a through hole allowing a drainage tube to penetrate through is formed in the bottom wall of the cavity, and the clamping portion is arranged on the fixing body and located on the outer side of the bottom wall of the cavity. The clamping part can be driven to rotate so as to adjust the diameter of the through hole, a locking part used for limiting rotation of the clamping part is arranged on the fixing body, an adsorption part is arranged on the other side, opposite to the clamping part, of the fixing body, and the adsorption part comprises a negative pressure adsorption assembly used for fixing the fixing body. According to the drainage tube fixing device, the clamping part can rotationally adjust and control the size of the through hole, the drainage tube fixing device can adapt to drainage tubes with different diameters, it is ensured that the drainage tubes are firmly clamped, the adsorption part enables the fixing body to be firmly adsorbed to the skin, and therefore stable support is provided for the drainage tubes, and the overall fixing reliability is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary devices, and particularly to a drainage tube fixing device. Background Art

[0002] In the field of medical care, the fixation of drainage tubes is crucial for ensuring the drainage effect and patient safety. However, the existing drainage tube fixation methods have obvious deficiencies in adapting to drainage tubes of different diameters and the fixation effect with the skin.

[0003] According to the publicly disclosed patent document CN219896750U, an anti - shedding drainage tube applied by the Air Force Medical University of the Chinese People's Liberation Army, this patent discloses an anti - shedding drainage tube, including an anti - shedding drainage tube main body and a fixing component, and the fixing component is installed on the outer side of the anti - shedding drainage tube main body; the anti - shedding drainage tube main body includes a first tube body, an anti - shedding tube and a second tube body, the anti - shedding tube is fixed between the first tube body and the second tube body, and the anti - shedding tube is corrugated; the fixing component includes a first tape, a first tightening band and a second tightening band, the first tape is arranged below the anti - shedding tube, the first tightening band and the second tightening band are both installed above the first tape, and the first tightening band and the second tightening band are arranged in a staggered manner. This patent can play a fixing role by setting the corrugated anti - shedding tube and the first tightening band and the second tightening band embedded in the corrugations after tightening, and the set first tape completely adheres to the patient's skin, and can achieve a very good anti - shedding and fixing effect.

[0004] Although this design solves the problem of drainage tube fixation to a certain extent, there are still the following deficiencies: On the one hand, the diameters of drainage tubes vary due to application scenarios and individual patient differences. Traditional fixation methods, such as tape fixation, often have difficulty adapting to drainage tubes of different diameters. Nursing staff need to select an appropriate tape width according to the diameter of the drainage tube, which not only increases the complexity of the operation, but also may lead to insecure fixation or excessive compression of the drainage tube, affecting the drainage effect. In addition, the adhesiveness of the tape will weaken over time, due to sweating or patient movement, easily causing the drainage tube to loosen or fall off, increasing the risk of infection.

[0005] On the other hand, the fixation effect between the drainage tube fixing device and the skin is also crucial. However, the existing fixation methods, such as tape fixation, often cannot meet this requirement. Tape fixation exerts a relatively large pressure on the skin, and long - term use may cause skin allergies, redness and even pressure sores, especially for patients with sensitive skin. In addition, tape fixation is likely to lose its adhesiveness in a sweaty or humid environment, resulting in fixation failure. Summary of the Invention

[0006] The purpose of the present invention is to provide a drainage tube fixing device, aiming to improve the reliability of drainage tube fixation and the comfort of patients.

[0007] To achieve the above object, the technical solution adopted by the present invention is: to provide a drainage tube fixing device, including: a fixing main body, a clamping part and an adsorption part arranged on the fixing main body; A cavity is provided in the middle of the fixing main body, a through hole for the drainage tube to pass through is provided on the bottom wall of the cavity, the clamping part is arranged on the fixing main body and is located outside the bottom wall of the cavity, the clamping part can be driven to rotate to adjust the diameter of the through hole, and a locking part for restricting the rotation of the clamping part is arranged on the fixing main body; An adsorption part is arranged on the other side of the fixing main body relative to the clamping part, and the adsorption part includes a negative pressure adsorption component for fixing the fixing main body.

[0008] Further, the fixing main body includes a fixing ring and a plurality of fixing arms arranged around the outer periphery of the fixing ring, and the inside of the fixing ring and the fixing arms is communicated; The negative pressure adsorption component includes a plurality of suction cups respectively arranged on a plurality of the fixing arms, and a plurality of air holes uniformly arranged on one side of the fixing ring. Each suction cup is communicated with each fixing arm. A one-way air valve is arranged on the opposite side of one of the suction cups. An external air pump forms a negative pressure adsorption between the fixing ring and an external adsorption position, and between the suction cup and the external adsorption position through the one-way air valve.

[0009] Further, the clamping part includes a rotating disk arranged on the fixing ring, a sliding piece arranged on the rotating disk, and a supporting disk for driving the sliding piece to slide. The rotating disk is arranged as a ring with a hollow middle. The sliding pieces are arranged in plurality, and one ends of the plurality of sliding pieces are respectively slidably arranged in grooves arranged on the rotating disk through sliding columns, and the other ends all extend towards the center of the rotating disk. The side of each sliding piece away from the rotating disk is slidably connected with the supporting disk. A plurality of sliding grooves are arranged on the supporting disk corresponding to each sliding piece. The rotating disk is driven to drive the sliding pieces to rotate and slide relative to the supporting disk to adjust the size of the through hole.

[0010] Further, the locking part includes a rotating part arranged on the rotating disk and a locking component arranged on the fixing main body. The locking component restricts the rotation of the rotating part to lock the rotation of the rotating disk.

[0011] Further, the rotating part includes a ratchet wheel arranged on the outer periphery of the rotating disk; The locking component includes a pawl group arranged on the fixing main body and a control component for controlling the opening and closing state of the pawl group. The pawl includes two oppositely arranged pawls. In the closed state of the pawl group, both of the two pawls are engaged in the ratchet wheel groove to lock the rotation of the ratchet wheel.

[0012] Furthermore, the regulating component includes connecting rods respectively connected to the two pawls, and driving rods connected to the free ends of the two connecting rods. One end of each connecting rod is hingedly connected to each pawl, and the free end of each connecting rod is provided with a guide groove for the driving rod to slide. The driving rod is provided with a reset spring for sliding and resetting the driving rod. The driving rod can be driven to push the connecting rod to rotate so as to regulate the opening and closing state of the pawl group.

[0013] Furthermore, the fixed body is provided with a limiting portion for limiting the sliding of the driving rod.

[0014] Furthermore, the limiting portion includes a limiting groove arranged on the fixed body, and a limiting column arranged on one end of the driving rod away from the pawl group, and the limiting column is threadedly connected to the limiting groove.

[0015] Furthermore, an elastic buffer rubber pad is arranged on the clamping part, and a through hole for the drainage tube to pass through is arranged in the middle of the elastic buffer rubber pad.

[0016] Furthermore, the elastic buffer rubber pad is arranged on the rotating disk in a conical shape; Anti-slip patterns are arranged on the inner wall of the via hole.

[0017] The beneficial effects of the drainage tube fixing device provided by the present invention are: Compared with the prior art, the drainage tube fixing device of the present invention realizes dual fixation of the drainage tube by fixing the clamping part and the adsorption part on the main body. The clamping part can rotate to adjust the through hole size, which can adapt to drainage tubes of different diameters, ensure that the drainage tube is firmly clamped, prevent it from loosening or shifting due to external force during use, and improve the stability of fixation. At the same time, the locking part can limit the rotation of the clamping part, further ensuring the stability of the clamping state, and preventing the clamping part from loosening due to factors such as accidental touch.

[0018] The adsorption part enables the fixed body to be firmly attached to the skin, and even when the patient is active or sweating, the fixed body can remain stable, thereby providing stable support for the drainage tube and enhancing the reliability of the overall fixation. This feature is particularly suitable for postoperative drainage, chest drainage, abdominal drainage, and urinary system drainage. It can effectively prevent the drainage tube from shifting or falling off due to external forces, reduce the risk of infection, and at the same time reduce the discomfort caused by traditional fixation methods, thereby improving the patient's comfort and quality of life.

[0019] In addition, the elastic buffer rubber pad on the clamping part can provide buffer protection for the drainage tube, avoiding damage or blockage of the drainage tube caused by excessive clamping, further ensuring the patency of drainage, and is especially suitable for patients who need long-term drainage, ensuring the stability and reliability of the drainage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following-described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 FIG. is a schematic diagram of the overall structure of a drainage tube fixing device provided by an embodiment of the present invention; Figure 2 FIG. is a schematic diagram of a partial structure of the drainage tube fixing device provided by an embodiment of the present invention; Figure 3 FIG. is a schematic diagram of the structure of the fixing main body provided by an embodiment of the present invention; Figure 4 FIG. is a schematic diagram of the structure of the clamping part provided by an embodiment of the present invention from one perspective; Figure 5 FIG. is a schematic diagram of the structure of the clamping part provided by an embodiment of the present invention from another perspective; Figure 6 FIG. is a schematic diagram of the structure of the locking part provided by an embodiment of the present invention.

[0022] In the figure: 1, fixing main body; 11, fixing ring; 111, cavity; 112, through hole; 113, air hole; 12, fixing arm; 2, clamping part; 21, rotating disk; 211, groove; 22, sliding piece; 221, sliding column; 222, sliding block; 23, supporting disk; 231, sliding groove; 3, adsorption part; 31, suction cup; 32, one-way air valve; 4, locking part; 41, ratchet wheel; 42, ratchet pawl; 43, regulating component; 431, connecting rod; 4311, guiding groove; 432, driving rod; 44, reset spring; 5, limiting column; 6, elastic buffer rubber pad; 61, through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by this embodiment clearer, the following will further describe this embodiment in detail in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this embodiment and are not used to limit this embodiment.

[0024] Please refer to Figures 1 to 6, a drainage tube fixing device provided in this embodiment will be described. A drainage tube fixing device in this embodiment includes a fixing main body 1, a clamping portion 2 and an adsorption portion 3 provided on the fixing main body 1.

[0025] Among them, the middle of the fixing main body 1 has a cavity 111, and a through hole 112 for the drainage tube to pass through is opened on the bottom wall of the cavity 111. The clamping portion 2 is provided on the fixing main body 1 and is located outside the bottom wall of the cavity 111. The clamping portion 2 can be driven to rotate to adjust the diameter size of the through hole 112. A locking portion 4 for restricting the rotation of the clamping portion 2 is provided on the fixing main body 1. The adsorption portion 3 is provided on the other side of the fixing main body 1 relative to the clamping portion 2. The adsorption portion 3 includes a negative pressure adsorption assembly for fixing the fixing main body 1.

[0026] Based on the overall description of the above structure, an exemplary structure of a drainage tube fixing device in this embodiment is as Figures 1 to 3 shown. The fixing main body 1 includes a fixing ring 11 and two fixing arms 12 arranged around the outer periphery of the fixing ring 11. The inside of the fixing ring 11 and the fixing arms 12 is communicated. The design of internal communication is conducive to forming a unified negative pressure space. Among them, a cavity 111 is provided in the middle of the fixing ring 11, and objects such as medical disinfected cotton can be provided in the cavity 111 to avoid wound infection.

[0027] In this embodiment, as a preferred implementation manner, still referring to Figure 1 and Figure 3 shown, the negative pressure adsorption assembly 3 includes a plurality of suction cups 31 respectively provided on a plurality of fixing arms 12. Each suction cup 31 is communicated with each fixing arm 12. A one-way air valve 32 is provided on the outer side of one of the suction cups 31 away from the skin. The external air pump forms negative pressure adsorption between the fixing ring 11 and the external adsorption position, and between the suction cup 31 and the external adsorption position through the one-way air valve 32. At the same time, a plurality of air holes 113 are opened on the outer periphery of the fixing ring 11 on the side close to the skin, and the plurality of air holes 113 are also communicated with the inside of the fixing ring 11, so as to form the entire communication space. By cooperating the one-way air valve 32 with the external air pump, negative pressure adsorption can be quickly formed between the fixing ring 11 and the skin, and between the suction cup 31 and the skin. This design not only increases the adsorption area and improves the adsorption force, enabling the fixing main body 1 to be more firmly adsorbed on the skin, but also through the negative pressure adsorption method, the pressure distribution is more uniform, reducing the local compression on the skin, reducing the risk of skin damage, and improving the comfort of the patient. In addition, in order to improve the adsorption effect, the surface of the suction cup 31 can be designed as a micro-texture structure to increase the contact area and friction with the skin.

[0028] After the drainage tube passes through the through-hole 112 on the fixing ring 11, in order to fix the relative position between the two, a clamping part 2 is arranged on the outer side of the fixing ring 11 for clamping the drainage tube, so as to facilitate the quick fixation of the drainage tube.

[0029] As a preferred embodiment, as Figure 2 , Figure 4 and Figure 5 shown, the clamping part 2 includes a rotating disk 21 arranged on the fixing ring 11, a sliding piece 22 arranged on the rotating disk 21, and a supporting disk 23 for driving the sliding piece 22 to slide. The rotating disk 21 is arranged as an annular shape with a hollow middle part. The sliding pieces 22 are arranged in plurality, and one ends of the plurality of sliding pieces 22 are all provided with sliding columns 221. Each sliding column 221 is respectively slidably arranged in a plurality of grooves 211 arranged on the rotating disk 21, and the other ends all extend towards the center of the rotating disk 21. The sides of each sliding piece 22 away from the rotating disk 21 are slidably connected with the supporting disk 23. Each sliding piece 22 is respectively provided with a strip-shaped slider 222, and the supporting disk 23 is provided with a plurality of sliding grooves 231 corresponding to each sliding piece 22. The rotating disk 21 is driven to drive the sliding piece 22 to rotate and slide relative to the supporting disk 23 to adjust the size of the through-hole 112. It can be understood that scale marks can be arranged on the rotating disk 21, and the nursing staff can accurately adjust the clamping force according to the diameter of the drainage tube. In addition, the sliding connection between the sliding piece 22 and the supporting disk 23 adopts a low-friction material to ensure a smooth adjustment process without obstruction.

[0030] The structural design of the rotating disk 21, the sliding piece 22 and the supporting disk 23 of the clamping part 2 realizes the flexible adjustment of the size of the through-hole 112. The rotation of the rotating disk 21 drives the sliding piece 22 to move, thereby changing the size of the through-hole 112, which can accurately adapt to drainage tubes with different diameters, improving the versatility and applicability of the device. At the same time, the sliding connection mode between the sliding piece 22 and the supporting disk 23 makes the adjustment process smoother, the operation simpler and faster, facilitating the nursing staff to quickly complete the fixation operation of the drainage tube and improving the work efficiency.

[0031] Meanwhile, in order to ensure the stable fixation of the drainage tube, a locking part 4 is arranged in this embodiment to lock the movement of the clamping part 2, so as to effectively prevent the clamping part 2 from loosening accidentally during use, ensure that the drainage tube always remains in the clamped state, and avoid the displacement or detachment of the drainage tube caused by the loosening of the clamping part 2, thereby improving the reliability and safety of the fixation and providing double guarantee for the stable fixation of the drainage tube.

[0032] Preferably, the locking part 4 includes a rotating part arranged on the rotating disk 21 and a locking component arranged on the fixing main body 1. The locking component restricts the rotation of the rotating part to lock the rotation of the rotating disk 21.

[0033] As a specific preferred embodiment, refer toFigure 1 , Figure 2 and Figure 6 As shown in Figure 6 , the rotating part includes a ratchet wheel 41 arranged on the outer periphery of the rotating disc 21. The locking assembly includes a set of pawls 42 arranged on the fixed main body 1 and a regulating assembly 43 for regulating the opening and closing state of the set of pawls 42. The pawl 42 includes two oppositely arranged pawls 42. In the closed state of the set of pawls 42, both pawls 42 are engaged in the slots of the ratchet wheel 41 to lock the rotation of the ratchet wheel 41. In this embodiment, the rotating part is designed as the ratchet wheel 41, and the locking assembly adopts the structure of the set of pawls 42 and the regulating assembly 43, realizing precise locking and unlocking control of the rotating disc 21. The set of pawls 42 can firmly hold the ratchet wheel 41 in the closed state to prevent its rotation, thus ensuring the stability of the clamping part 2; while the regulating assembly 43 can control the opening and closing state of the set of pawls 42 by sliding the driving rod 432, which is simple and convenient to operate, facilitating the nursing staff to adjust the tightness of the clamping part 2 as needed at any time, further improving the flexibility and practicality of the device.

[0034] Specifically, as shown in Figure 6 , the regulating assembly 43 includes a connecting rod 431 respectively connected to the two pawls 42 and a driving rod 432 connected to the free ends of the two connecting rods 431. One end of each connecting rod 431 is hinged to each pawl 42 respectively, and a guiding groove 4311 for the driving rod 432 to slide is provided at the free end of each connecting rod 431. A return spring 44 for driving the driving rod 432 to slide and reset is provided on the driving rod 432. The driving rod 432 can be driven to push against the connecting rod 431 to rotate, so as to regulate the opening and closing state of the set of pawls 42.

[0035] When it is necessary to lock the ratchet wheel 41, an external force drives the driving rod 432 to slide in a direction away from the pawl 42. At this time, the free end of the connecting rod 431 rotates under the drive of the driving rod 432, and the other end of the connecting rod 431 drives the pawl 42 to rotate itself, so that the free ends of the two pawls 42 approach each other, so that the two pawls 42 can be engaged in the slots of the ratchet wheel 41 to realize the restriction of the movement of the ratchet wheel 41. The setting of the return spring 44 can drive the driving rod 432 to move in the reverse direction under the action of its own elastic force when unlocking the ratchet wheel 41, achieving the effect of automatically driving the pawl 42 to reset.

[0036] At the same time, during the process of locking the ratchet wheel 41, in order to ensure that the set of pawls 42 can maintain the locked state when not affected by external forces, preferably, a limiting part for restricting the sliding of the driving rod 432 is provided on the fixed main body 1 to restrict the automatic reset of the driving rod 432 when not affected by external forces, thereby further improving the stability and reliability of the device.

[0037] As a preferred embodiment, the limiting part includes a limiting groove provided on the fixed main body 1 and a limiting post 5 provided at one end of the driving rod 432 away from the pawl 42 group. The limiting post 5 is threadedly connected to the limiting groove. The threaded connection method of the limiting part using the limiting groove and the limiting post 5 not only effectively limits the driving rod 432 but also increases the stability and reliability of the limitation. The design of the threaded connection enables the limiting post 5 to be firmly fixed in the limiting groove, preventing it from loosening or falling off during use, thus ensuring that the driving rod 432 always slides within the defined range and further improving the safety and stability of the device. This structural design is simple and effective, providing a strong guarantee for the normal operation of the entire fixing device.

[0038] In addition, in this embodiment, return Figure 1 As shown, an elastic buffer rubber pad 6 is provided on the clamping part 2, and a through hole 61 for the drainage tube to pass through is provided in the middle of the elastic buffer rubber pad 6. It provides additional protection for the drainage tube. Preferably, the material of the rubber pad is selected as soft and elastic medical silica gel, which can conform to the shape of the drainage tube, provide a supporting force for the drainage tube, and prevent it from being excessively bent due to uneven stress during the clamping process.

[0039] A through hole 61 is provided in the middle of the elastic buffer rubber pad 6. When the drainage tube passes through the through hole 61, the rubber pad can play a buffering role, reducing the direct pressure of the clamping part 2 on the drainage tube, preventing the drainage tube from being damaged due to excessive clamping, and at the same time reducing the pressure on the patient's skin and improving the patient's comfort. In addition, the material and structural design of the elastic buffer rubber pad 6 can also adapt to the shape and size changes of the drainage tube, further enhancing the versatility and applicability of the device.

[0040] Preferably, the elastic buffer rubber pad 6 is arranged in a conical shape on the rotating disc 21. The conical arrangement of the elastic buffer rubber pad 6 can better adapt to the shape of the drainage tube, making the drainage tube pass through the through hole 61 more smoothly and reducing the friction and resistance to the drainage tube. In this drainage tube fixing device, the elastic buffer rubber pad 6 not only provides buffer protection for the drainage tube but also particularly plays an important role in preventing the drainage tube from being excessively bent. When the drainage tube passes through the through hole 61 in the middle of the elastic buffer rubber pad 6, the soft material of the rubber pad can conform to the shape of the drainage tube and provide a certain supporting force for the drainage tube, thus preventing the drainage tube from being excessively bent due to uneven stress during the clamping process. This design not only protects the integrity of the drainage tube and ensures its smoothness during use but also reduces the pressure on the patient's skin and improves the patient's comfort.

[0041] At the same time, anti-skid patterns (not shown in the figure) are arranged on the inner wall of the through hole 61, and the anti-skid patterns arranged on the inner wall of the through hole 61 can increase the friction between the through hole 61 and the drainage tube, preventing the drainage tube from sliding in the clamped state, and further improving the stability of the fixation. This structural design not only optimizes the fixation effect of the drainage tube, but also improves the user experience of the patient, making the entire fixation device more humane.

[0042] When using the drainage tube fixing device, first place the fixing body 1 on the patient's skin to ensure that it fits tightly with the skin. Subsequently, start the external air pump, and extract the air in the fixing ring 11 and the suction cup 31 through the one-way air valve 32 to form negative pressure adsorption, so that the fixing body 1 is firmly adsorbed on the skin. According to the test, the negative pressure generated by the adsorption part 3 on the skin surface can reach -50kPa. In order to ensure the stability and safety of the adsorption force, the device is equipped with a high-precision pressure sensor, which can monitor the negative pressure value in real time and keep it within the set safety range (such as -40kPa to -50kPa) through the automatic adjustment system of the external air pump. When the negative pressure value is lower or higher than the set range, the air pump will automatically adjust the suction speed or stop suction to ensure the stability and safety of the adsorption force. Among them, the model of the pressure sensor can be selected according to actual needs, which will not be described in detail here.

[0043] At this time, the drainage tube is passed through the through hole 112 in the middle of the fixing ring 11. According to the diameter of the drainage tube, the rotating disk 21 of the clamping part 2 is rotated to drive the slide 22 to move and adjust the diameter of the through hole 112 until the drainage tube is firmly clamped. The clamping force of the clamping part 2 for the drainage tube with a diameter of 5-15mm is 2-10N. This clamping force range can ensure that the drainage tube is firmly fixed without causing excessive pressure on the drainage tube. The adjustment of the clamping force is precisely controlled by the scale mark of the rotating disk 21 (not shown in the figure). The nursing staff can select the appropriate clamping force according to the actual diameter of the drainage tube and the needs of the patient. At the same time, the force sensor inside the device can monitor the size of the clamping force in real time to ensure that the clamping force is within a safe range to avoid damage to the drainage tube.

[0044] In addition, in order to further improve safety and comfort, the elastic buffer rubber pad 6 of the clamping part can effectively disperse the clamping force to prevent the drainage tube from being damaged due to excessive clamping, while also reducing the pressure on the patient's skin. The surface of the suction cup 31 of the adsorption part also adopts a micro-texture structure, which increases the contact area and friction with the skin, while reducing local pressure and reducing the risk of skin damage. Through these designs, the drainage tube fixing device not only ensures firm fixation, but also provides patients with higher safety and comfort.

[0045] Next, in order to ensure the stability of the clamping part 2 and prevent it from accidentally loosening during use, it is necessary to operate the regulating assembly 43 of the locking part 4. The specific operation is as follows: push the driving rod 432 by external force to slide along the limiting groove in the direction away from the pawl 42. The sliding of the driving rod 432 will drive the connecting rod 431 connected thereto, and the free end of the connecting rod 431 will slide in the guide groove 4311, thereby pushing the other end of the connecting rod 431 to drive the pawl 42 to rotate. The two relatively arranged pawls 42 gradually move closer under the action of the driving rod 432, and finally get stuck in the wheel groove of the ratchet 41, thereby locking the rotation of the rotating disk 21, ensuring the stability of the clamping part 2, and preventing the drainage tube from shifting or falling off during use.

[0046] When the locking state needs to be released, the driving rod 432 only needs to be gently pushed to move in the reverse direction. At this time, the return spring 44 on the driving rod 432 automatically drives the driving rod 432 back to the initial position under the action of its own elastic force. As the driving rod 432 moves in the reverse direction, the free end of the connecting rod 431 slides in the guide groove 4311, driving the pawl 42 to disengage from the groove of the ratchet wheel 41, thereby releasing the lock on the rotating disk 21.

[0047] During the whole process, the elastic buffer rubber pad 6 provides buffer protection for the drainage tube, reduces the direct pressure of the clamping part 2 on the drainage tube, prevents the drainage tube from being damaged due to excessive clamping, and also reduces the pressure on the patient's skin, improving the patient's comfort. At the same time, the anti-slip texture on the inner wall of the through hole 61 increases the friction between the drainage tube and the drainage tube, preventing the drainage tube from sliding in the clamped state, and further improving the stability of the fixation.

[0048] The drainage tube fixing device of this embodiment realizes the stable fixation and reliable adsorption of the drainage tube through its unique structural design, which significantly improves the convenience and safety of operation in medical care. The fixed body 1 and the adsorption part 3 are structurally optimized and cooperate with each other. By using the negative pressure adsorption principle, the device is not only firmly fixed on the skin surface, but also reduces the pressure on the skin through uniform pressure distribution, reduces the risk of skin damage, and improves the comfort of the patient. The flexible adjustment mechanism of the clamping part 2 can accurately adapt to drainage tubes of different diameters, ensuring that the drainage tube can be firmly clamped in various situations to prevent it from shifting or falling off. The precise control function of the locking part 4 further enhances the stability of the clamping part 2, effectively avoids loosening caused by accidental touch, and provides double protection for the stable fixation of the drainage tube. In addition, the setting of the elastic buffer rubber pad 6 not only provides buffer protection for the drainage tube to prevent it from being damaged due to excessive clamping, but also plays an important role in preventing the drainage tube from being excessively bent, ensuring that the drainage tube remains unobstructed during use, while reducing the pressure on the patient's skin.

[0049] The above are only the preferred embodiments of this embodiment, and are not intended to limit this embodiment. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this embodiment shall be included within the protection scope of this embodiment.

Claims

1. A drainage tube fixing device, characterized in that: It comprises a fixed body (1), a clamping part (2) and an adsorption part (3) arranged on the fixed body (1); The fixed body (1) has a cavity (111) in the middle, and a through hole (112) for the drainage tube to pass through is provided on the bottom wall of the cavity (111). The clamping portion (2) is arranged on the fixed body (1) and is located outside the bottom wall of the cavity (111). The clamping portion (2) can be driven to rotate to adjust the diameter of the through hole (112). The fixed body (1) is provided with a locking portion (4) for limiting the rotation of the clamping portion (2); An adsorption portion (3) is provided on the other side of the fixed body (1) relative to the clamping portion (2), and the adsorption portion (3) comprises a negative pressure adsorption component for fixing the fixed body (1).

2. A drainage tube fixing device according to claim 1, characterized in that: The fixing body (1) comprises a fixing ring (11) and a plurality of fixing arms (12) arranged around the outer circumference of the fixing ring (11), wherein the interiors of the fixing ring (11) and the fixing arms (12) are in communication; The negative pressure adsorption component comprises a plurality of suction cups (31) respectively arranged on the plurality of fixed arms (12), and a plurality of air holes (113) uniformly arranged on one side of the fixed ring (11), each of the suction cups (31) being connected to each of the fixed arms (12), and a one-way air valve (32) being arranged on the opposite side of one of the suction cups (31), and an external air pump forms negative pressure adsorption between the fixed ring (11) and the external adsorption position, and between the suction cup (31) and the external adsorption position through the one-way air valve (32).

3. A drainage tube fixing device according to claim 2, characterized in that: The clamping portion (2) comprises a rotating disk (21) arranged on the fixing ring (11), a sliding sheet (22) arranged on the rotating disk (21), and a supporting disk (23) for driving the sliding sheet (22) to slide. The rotating disk (21) is arranged in a ring shape with a hollow middle portion. The sliding sheets (22) are arranged in plurality, and one end of the plurality of sliding sheets (22) is slidably arranged in a groove (211) arranged on the rotating disk (21) through a sliding column (221), and the other end of the plurality of sliding sheets (22) is extended toward the center of the rotating disk (21). A side of each sliding sheet (22) away from the rotating disk (21) is slidably connected to the supporting disk (23). A plurality of sliding grooves (231) are arranged on the supporting disk (23) corresponding to each sliding sheet (22). The rotating disk (21) is driven to drive the sliding sheet (22) to rotate and slide relative to the supporting disk (23) to adjust the size of the through hole (112).

4. A drainage tube fixing device according to claim 3, characterized in that: The locking portion (4) comprises a rotating portion arranged on the rotating disk (21), and a locking assembly arranged on the fixed body (1), wherein the locking assembly limits the rotation of the rotating portion to lock the rotation of the rotating disk (21).

5. A drainage tube fixing device according to claim 4, characterized in that: The rotating part comprises a ratchet wheel (41) arranged on the outer periphery of the rotating disk (21); The locking assembly comprises a pawl (42) group arranged on the fixed body (1), and a regulating assembly (43) for regulating the opening and closing state of the pawl (42) group. The pawl (42) comprises two pawls (42) arranged opposite to each other. When the pawl (42) group is in a closed state, the two pawls (42) are both inserted into the grooves of the ratchet wheel (41), thereby locking the rotation of the ratchet wheel (41).

6. A drainage tube fixing device according to claim 5, characterized in that: The regulating assembly (43) comprises connecting rods (431) respectively connected to the two ratchet pawls (42), and driving rods (432) connected to the free ends of the two connecting rods (431), one end of each connecting rod (431) is hingedly connected to each ratchet pawl (42), and the free end of each connecting rod (431) is provided with a guide groove (4311) for the driving rod (432) to slide, and a return spring (44) for sliding and returning the driving rod (432) is provided on the driving rod (432), and the driving rod (432) can be driven to push the connecting rod (431) to rotate, so as to regulate the opening and closing state of the ratchet pawl (42) group.

7. A drainage tube fixing device according to claim 6, characterized in that: The fixed body (1) is provided with a limiting portion for limiting the sliding of the driving rod (432).

8. A drainage tube fixing device according to claim 7, characterized in that: The limiting portion comprises a limiting groove provided on the fixed body (1), and a limiting column (5) provided on one end of the driving rod (432) away from the ratchet pawl (42) group, the limiting column (5) being threadedly connected to the limiting groove.

9. A drainage tube fixing device according to claim 2, characterized in that: An elastic buffer rubber pad (6) is provided on the clamping portion (2), and a through hole (61) for the drainage tube to pass through is provided in the middle of the elastic buffer rubber pad (6).

10. A drainage tube fixing device according to claim 9, characterized in that: The elastic buffer rubber pad (6) is arranged in a conical shape on the rotating disk (21); Anti-slip patterns are arranged on the inner wall of the through hole (61).

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