Catheter fixing mechanism with flexible clamping and synchronous massaging functions

Abstract

The invention belongs to the technical field of medical assistors, and particularly relates to a catheter fixing mechanism with flexible clamping and synchronous massage, which comprises a mounting seat, a mounting groove is formed in the mounting seat, and a flexible clamping mechanism is arranged in the mounting groove and is used for clamping a catheter main body; a plurality of vertically arranged first air bags are utilized, and the clamping chain plate can be driven to clamp the catheter main body during inflation; the top clamping chain plates can be bent when the corresponding air bags continue to expand, and therefore the two sides of the top of the catheter are limited. Bandages are arranged on the two sides of the installation base in a spaced mode, and massage mechanisms are installed on the bandages. The micro air pump is used for inflating the second air bag, the telescopic flexible pipe is pushed to stretch, and the massage head is driven to massage the wrist. Flexible clamping can be achieved through air bag driving, dynamic regulation and control are achieved in combination with pressure sensing feedback, meanwhile, the massage and drying functions are integrated, the fixing reliability and the use comfort are improved, the structure is simplified, and the cost is reduced.

Description

Technical Field

[0001] This invention belongs to the field of medical assistive device technology, specifically relating to a catheter fixation mechanism with flexible clamping and synchronous massage. Background Technology

[0002] In clinical medicine, dialysis catheters are indispensable medical devices in critical treatments such as hemodialysis, and their stable fixation directly affects the safety and effectiveness of the treatment. Currently, the most commonly used methods for fixing dialysis catheters in clinical practice are traditional mechanical clamping or adhesive tape fixation. Traditional mechanical clamping devices suffer from uncontrollable clamping force and inaccurate adjustment, easily causing pressure injuries or deformation to the catheter due to excessive clamping, affecting blood flow, and potentially even damaging the catheter's outer wall; while excessive clamping cannot guarantee reliable fixation, making the catheter prone to displacement or dislodgement, leading to complications such as infection and bleeding.

[0003] Meanwhile, while adhesive tape fixation is convenient, long-term use can easily lead to skin allergies and redness, and it cannot adapt to different sizes of dialysis catheters, resulting in poor fixation stability. Furthermore, dialysis treatment cycles are long, and patients' arms are in a fixed position for extended periods, which can easily cause discomfort such as poor local blood circulation and muscle soreness. Existing fixation devices lack corresponding auxiliary comfort functions and cannot meet patients' comfort needs.

[0004] Furthermore, existing catheter fixation devices often employ multiple power sources or complex valve assembly structures for their pneumatic control, which not only increases the size and cost of the device but also raises the failure rate, hindering its widespread clinical application. Moreover, the lack of a real-time feedback mechanism for clamping pressure makes it difficult for medical staff to accurately monitor the clamping status and adjust it according to individual patient conditions. Summary of the Invention

[0005] The purpose of this invention is to provide a catheter fixation mechanism with flexible clamping and synchronous massage, which can achieve flexible clamping through airbag drive, combined with dynamic control by pressure sensor feedback, and integrate massage and drying functions, thereby improving fixation reliability and user comfort, simplifying the structure and reducing costs.

[0006] The specific technical solution adopted by this invention is as follows: A catheter fixing mechanism with flexible clamping and synchronous massage includes a mounting base, wherein the mounting base is provided with a mounting groove and a flexible clamping mechanism is provided therein for clamping the catheter body; Multiple vertically arranged first airbags can be used to drive clamping chain plates to clamp the catheter body when inflated; the top clamping chain plate can bend when the corresponding airbag continues to expand, thereby limiting the top two sides of the catheter. The mounting base is provided with straps on both sides, and a massage mechanism is installed on the straps; The second airbag is inflated by a miniature air pump, which pushes the telescopic flexible tube to extend and drive the massage head to massage the wrist. When the exhaust hole is exposed, the airbag exhausts and the massage head returns to its original position, thus achieving continuous massage and drying the wrist during the exhaust process. The mounting base is equipped with a control mechanism, which is configured to independently control the inflation and deflation of the first airbag and to control the inflation of the second airbag.

[0007] The flexible clamping mechanism includes multiple mounting blocks disposed on both sides inside the mounting groove, and multiple first airbags are vertically and equidistantly arranged on one side of each mounting block. A limiting ring is fixed to the outer wall of the first airbag near its end. A plurality of limiting rods are arranged equidistantly along one side of the limiting ring in the circumferential direction. The limiting rods are slidably connected to the mounting block. The clamping chain plate is disposed between one end of multiple first airbags on the same side, and has multiple plates, each plate being connected to a corresponding first airbag.

[0008] The massage mechanism includes a second airbag disposed inside the strap. The second airbag has multiple through holes arranged in an equidistant array. A first limiting tube is disposed at the top edge of the through holes and is located inside the second airbag. The outer wall of the first limiting tube is damped and slidably fitted with a second limiting tube. The top of the second limiting tube is rounded, and the bottom of the second limiting tube and fitted onto the outer wall of the first limiting tube are provided with a first spring.

[0009] The telescopic flexible tube is sealed and fixed inside the second airbag and sleeved on the second limiting tube; The telescopic flexible tube extends and flips towards the first limiting tube, penetrating the interior of the first limiting tube; a massage head is sealed and fixed at one end extending out of the through hole.

[0010] The outer wall of the telescopic flexible tube is provided with multiple vent holes at equal intervals around the first limiting tube. A first sealing ring is fixed on the telescopic flexible tube and located on the upper and lower sides of the vent holes, which is in sealing and sliding contact with the first limiting tube.

[0011] The control mechanism includes a first insertion slot disposed on the mounting base, a first insertion block inserted into the first insertion slot, and a waist-shaped groove formed on one side of the first insertion block. The inner side of the waist-shaped groove is provided with a Z-shaped air passage, and the other end of the Z-shaped air passage is connected to the other side of the first plug-in block. A buckling mechanism is provided on one side of the first plug-in block above the waist-shaped groove.

[0012] The top of the mounting base has a second insertion slot on one side of the first insertion slot, and a second insertion block is inserted into the interior of the second insertion slot; The inner side of the first insertion slot is provided with a clamping air passage communicating with the first airbag, and the second insertion block is provided with a first L-shaped air passage extending laterally on one side, and the first L-shaped air passage is aligned and communicated with the clamping air passage. The first L-shaped air passage is provided with a first one-way valve inside. The second plug block is provided with a second L-shaped air passage vertically on one side and above the first L-shaped air passage. The second plug block extends to the outside of the first plug groove and is provided with a through groove that communicates with the second L-shaped air passage.

[0013] A second air passage is provided between the first insertion slot and the second insertion slot for connecting the Z-shaped air passage and the first L-shaped air passage; A third airway communicating with the second airbag is provided inside the first insertion slot and below the second airway, and a second one-way valve is provided inside the third airway.

[0014] According to the claim, a catheter fixing mechanism with flexible clamping and synchronous massage is provided on the top of the mounting base and on one side of the first insertion slot, and a first air passage is opened on the inner side of the first insertion slot corresponding to the waist-shaped groove. One end of the first airway is connected to the inflation port of the micro air pump, and the other end of the first airway is provided with a protruding nozzle that extends into the waist-shaped groove.

[0015] The top of the mounting base is equipped with a battery and a display screen. The inside of the mounting base is equipped with a controller. A flexible pressure sensor is fixed to the inner wall of the strap. The controller is electrically connected to the battery, the display screen, the flexible pressure sensor, and the miniature air pump.

[0016] The technical effects achieved by this invention are as follows: This invention achieves flexible and reliable fixation of dialysis catheters through a flexible clamping mechanism. After multiple first air bladders are inflated, they push the clamping chain plates to move, and the clamping force is uniform and adjustable, which can adapt to the shape of catheters of different specifications. The clamping chain plates that are not in contact with the catheter can rotate and bend as the corresponding first air bladder continues to expand, forming a limit on the top of the catheter. In conjunction with the rubber buffer block and anti-slip protrusion at the bottom of the mounting groove, a coordinated fixation mechanism of "bottom buffer and anti-slip, lateral flexible clamping, and top bending limit" is achieved, which effectively avoids catheter damage or deformation caused by traditional mechanical clamping, while improving fixation stability.

[0017] This invention integrates a massage mechanism. A micro air pump inflates the second airbag, driving the telescopic flexible tube to extend and massage the wrist area, improving patient comfort. When the telescopic flexible tube extends to the point where the exhaust hole exits the through hole, the gas in the airbag is discharged, and the massage head returns to its original position under the action of the first spring, achieving continuous massage. The discharged gas can blow on the massage area, accelerating sweat evaporation and keeping the skin dry, combining massage and drying functions in a clever structure.

[0018] This invention employs a miniature air pump and a linkage control mechanism. By switching the air path through different operating states of the first and second plug-in blocks, the orderly inflation drive of the first and second airbags is achieved, simplifying the system configuration and reducing the complexity of multi-power source control. The installation of a first and second one-way valve in the air path effectively prevents gas backflow, ensuring reliable pressure maintenance during the clamping state of the first airbag and stability during the inflation process of the second airbag, thus improving the device's operational stability. The locking mechanism can limit and fix the first plug-in block after pressing, eliminating the need for continuous pressing and making operation convenient. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall front view structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the mounting base of the present invention; Figure 3 This is a schematic diagram of the flexible clamping mechanism of the present invention; Figure 4 This is a partial structural diagram of the flexible clamping mechanism of the present invention; Figure 5 This is a cross-sectional structural diagram of the massage mechanism of the present invention; Figure 6 This is a schematic diagram of the buffer block structure of the present invention; Figure 7 This is a cross-sectional structural diagram of the control mechanism of the present invention; Figure 8 This is the invention Figure 7 Enlarged structural diagram of region A in the middle; Figure 9 This is a schematic diagram of the first plug-in block structure of the present invention; Figure 10 This is a schematic diagram of the second plug-in block structure of the present invention.

[0020] The attached diagram lists the components represented by each number as follows: 1. Mounting base; 2. Strap; 3. Mounting groove; 4. Guide tube body; 5. Flexible clamping mechanism; 51. Mounting block; 52. First airbag; 53. Limiting ring; 54. Limiting rod; 55. Clamping chain plate; 6. Massage mechanism; 61. Second airbag; 62. Through hole; 63. Telescopic flexible tube; 64. Massage head; 65. First limiting tube; 66. Second limiting tube; 67. Exhaust hole; 68. First sealing ring; 69. First spring; 7. Miniature air pump; 8. Adjustment mechanism; 81. 82. First air passage; 83. First insertion slot; 84. Waist-shaped slot; 85. Z-shaped air passage; 86. Second air passage; 87. Third air passage; 88. Second insertion slot; 89. Second insertion block; 810. First L-shaped air passage; 811. Through slot; 812. Second L-shaped air passage; 813. Second spring; 9. Buckling mechanism; 91. C-shaped slot; 92. C-shaped locking rod; 93. Third spring; 94. Locking slot; 10. Buffer block; 11. Battery; 12. Protective cover. Detailed Implementation

[0021] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0022] like Figures 1-5 As shown, a catheter fixing mechanism with flexible clamping and synchronous massage includes a mounting base 1, a mounting groove 3 on the mounting base 1, and a flexible clamping mechanism 5 inside the groove 3 for clamping the catheter body 4. A protective cover 12 is snapped onto the top of the mounting groove 3 for protecting the clamped catheter body 4. The flexible clamping mechanism 5 includes multiple mounting blocks 51 disposed on both sides inside the mounting groove 3, and multiple first airbags 52 are vertically and equidistantly disposed on one side of the mounting block 51. A limiting ring 53 is fixed to the outer wall of the first airbag 52 near its end. A plurality of limiting rods 54 are arranged equidistantly along the circumference of one side of the limiting ring 53. The limiting rods 54 are slidably connected to the mounting block 51. The clamping chain plate 55 is disposed between one end of multiple first airbags 52 on the same side. It has multiple plates, each plate being connected to a corresponding first airbag 52. Multiple buffer blocks 10 are arrayed in the inner bottom of the mounting groove 3. Multiple anti-slip protrusions with triangular cross sections are integrally formed on the top of the buffer block 10. The buffer block 10 is made of rubber.

[0023] According to the above structure: In use, the catheter body 4 is placed in the mounting groove 3 and positioned between two sets of clamping chain plates 55. The micro air pump 7 inflates multiple first airbags 52, and the upper limit ring 53 and the limiting rod 54 limit the first airbags 52 so that the first airbags 52 can only extend and retract toward the catheter body 4. After the first airbags 52 are inflated, they push the clamping chain plates 55 to move, thereby clamping and fixing the catheter body 4 through the clamping chain plates 55. At the same time, for the clamping chain plate 55 that is not in contact with the catheter body 4, the corresponding first airbag 52 continues to expand and extend, causing the plate to rotate, so that the top side of the clamping chain plate 55 bends towards the catheter body 4, thereby limiting the top of the catheter body 4. Multiple first airbags 52 are inflated by a micro air pump 7, which drives the clamping chain plate 55 to move towards and fit the catheter body 4. The clamping force is uniform and adjustable, which can adapt to the shape of catheters of different specifications, achieve flexible fitting and reliable fixation, and effectively prevent pressure damage or deformation caused by traditional mechanical clamping. The first airbag 52 is unidirectionally limited by the limiting ring 53 and the limiting rod 54 to ensure that the first airbag 52 can only extend and retract in the direction of the duct, thus preventing deflection. The rubber buffer block 10 at the bottom of the mounting groove 3 and the triangular anti-slip protrusions on its surface can provide buffering and anti-slip function when the conduit body 4 is placed. Together with the clamping chain plate 55 driven by the first airbag 52, it can achieve a coordinated fixing mechanism of "bottom buffering and anti-slip, lateral flexible clamping, and top bending limit".

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, straps 2 are provided on both sides of the mounting base 1, and a massage mechanism 6 is installed on the straps 2. The massage mechanism 6 includes a second airbag 61 disposed inside the straps 2. The second airbag 61 has multiple through holes 62 arranged in an equidistant array. A first limiting tube 65 is provided at the top edge of the through holes 62, and the first limiting tube 65 is located inside the second airbag 61. The outer wall of the first limiting tube 65 is damped and slidably connected to a second limiting tube 66. The top of the second limiting tube 66 is rounded, and the bottom of the second limiting tube 66 and the outer wall of the first limiting tube 65 are provided with a first spring 69. The telescopic flexible tube 63 is sealed and fixed inside the second airbag 61 and sleeved on the second limiting tube 66; The telescopic flexible tube 63 is flipped and extended toward the first limiting tube 65 and penetrates the interior of the first limiting tube 65; a massage head 64 is sealed and fixed at one end of the tube that extends out of the through hole 62. The outer wall of the telescopic flexible tube 63 is provided with multiple vent holes 67 equidistantly spaced around the first limiting tube 65. A first sealing ring 68 is fixed on the telescopic flexible tube 63 and located on the upper and lower sides of the vent holes 67, which is in sealing and sliding contact with the first limiting tube 65.

[0025] According to the above structure: the micro air pump 7 inflates the second airbag 61, and the gas pressure pushes the telescopic flexible tube 63 to extend, thereby driving the massage head 64 to perform a massage action on the wrist, thus improving the comfort of using the device; when the telescopic flexible tube 63 is continuously extended by air pressure until its exhaust hole 67 moves out of the through hole 62, the gas in the second airbag 61 is discharged outward through the through hole 62. At the same time, under the elastic restoring force of the first spring 69, the telescopic flexible tube 63 drives the massage head 64 to return to its original position and retract, thereby realizing the continuous massage function of the device; in addition, the gas discharged from the through hole 62 can blow on the massage area, which has the auxiliary effect of drying and enhancing comfort; When the massage head 64 is extended to its limit position, the gas in the second airbag 61 is discharged in a direction through the exhaust hole 67 and through hole 62 on the telescopic flexible tube 63, forming a local airflow. This airflow acts directly on the surface of the skin that has just been massaged, which can accelerate the evaporation of sweat and keep the skin dry. While improving the massage experience, it also enhances the practicality and comfort of the device. The design of the first sealing ring 68 ensures effective sealing and phased opening of the air passage inside the airbag during the expansion and contraction process, so that the inflation, massage, deflation and reset are connected in an orderly manner, and the operation is stable and reliable. The massage and physical cooling and drying functions are cleverly combined in a single mechanism, eliminating the need for additional components such as fans, simplifying the structure and reducing costs.

[0026] like Figures 1-10 As shown, the mounting base 1 is provided with a control mechanism 8, which is configured to independently control the inflation and deflation of the first airbag 52 and to control the inflation of the second airbag 61. The control mechanism 8 includes a first insertion slot 82 disposed on the mounting base 1, a first insertion block 83 inserted into the first insertion slot 82, and a waist-shaped groove 84 opened on one side of the first insertion block 83. A Z-shaped air passage 85 is provided through the inner side of the waist-shaped groove 84, and the other end of the Z-shaped air passage 85 is connected to the other side of the first insertion block 83. A latching mechanism 9 is provided on one side of the first insertion block 83 and above the waist-shaped groove 84. The latching mechanism 9 includes a C-shaped groove 91 disposed on one side of the first insertion block 83. The bottom end of the C-shaped groove 91 is located inside the first insertion groove 82 and communicates with one side of the first insertion block 83. A C-shaped latch 92 is slidably installed inside the C-shaped groove 91. Both ends of the C-shaped latch 92 extend to the outside of the C-shaped groove 91. The bottom of the C-shaped latch 92 is provided with a chamfer to form a latch block. A latching groove 94 is opened on the inner side of the first insertion groove 82 corresponding to the latch block. A third spring 93 is fixed on one side of the C-shaped latch 92 and fixed to the inner side of the C-shaped groove 91. The top of the mounting base 1 is provided with a second insertion slot 88 on one side of the first insertion slot 82, and a second insertion block 89 is inserted into the inside of the second insertion slot 88. The inner side of the first insertion slot 82 is provided with a clamping air passage communicating with the first airbag 52, and the first L-shaped air passage 810 is provided horizontally through one side of the second insertion block 89, and the first L-shaped air passage 810 is aligned and communicated with the clamping air passage. The first L-shaped air passage 810 is provided with a first one-way valve inside. The second L-shaped air passage 812 is vertically opened on one side of the second plug block 89 and above the first L-shaped air passage 810. The second plug block 89 extends to the outside of the first plug groove 82 and is provided with a through groove 811 that communicates with the second L-shaped air passage 812. The bottom of the first plug block 83 and the second plug slot 88 are both fixed with a second spring 813; A second air passage 86 is provided between the first insertion slot 82 and the second insertion slot 88 for connecting the Z-shaped air passage 85 and the first L-shaped air passage 810. A third airway 87, which communicates with the second airbag 61, is provided inside the first insertion slot 82 and below the second airway 86. A second one-way valve is provided inside the third airway 87. A miniature air pump 7 is provided on the top of the mounting base 1 and on one side of the first insertion slot 82. A first air passage 81 is provided on the inner side of the first insertion slot 82 corresponding to the waist-shaped groove 84. One end of the first airway 81 is connected to the air inlet of the micro air pump 7, and the other end of the first airway 81 is provided with a protruding nozzle that extends into the waist-shaped groove 84.

[0027] According to the above structure: when the first airbag 52 is inflated, the micro air pump 7 is activated. The gas generated by the micro air pump 7 enters the waist-shaped groove 84 through the first air passage 81. In the initial state of the first insertion block 83 and the second insertion block 89, the air inlet end of the second air passage 86 is sealed and connected to the air outlet end of the Z-shaped air passage 85, the air outlet end of the second air passage 86 is sealed and connected to the air inlet end of the first L-shaped air passage 810, and the air outlet end of the first L-shaped air passage 810 is sealed and connected to the air inlet end of the clamping air passage. This allows the gas to enter the first airbag 52 along the Z-shaped air passage 85, the second air passage 86, the first L-shaped air passage 810, and the clamping air passage. The first one-way valve prevents the gas from passing through the first air passage 82. The L-shaped airway 810 allows for internal backflow, facilitating pressure maintenance of the first airbag 52 and improving the stability of the flexible clamping mechanism 5. When the first airbag 52 needs to be deflated, the second insertion block 89 is pressed, causing the air inlet end of the second L-shaped airway 812 to seal and connect with the air inlet end of the clamping airway. The first L-shaped airway 810 separates from the clamping airway, and the gas inside the first airbag 52 is discharged through the second L-shaped airway 812, causing the first airbag 52 to contract and the clamping chain plate 55 to remove the clamping limit on the clamping guide tube body 4. After the second insertion block 89 is released, the second spring 813 pushes the second insertion block 89 to reset and move, making it convenient for the equipment to be used normally next time. When the second airbag 61 is inflated, pressing the first connector 83 causes it to move downwards, sealing the outlet of the Z-shaped airway 85 with the inlet of the third airway 87. The first airway 81 remains connected to the waist-shaped groove 84. Gas generated by the micro air pump 7 enters the second airbag 61 through the first airway 81, waist-shaped groove 84, Z-shaped airway 85, and third airway 87. A second one-way valve inside the third airway 87 prevents backflow of gas. When the first plug-in block 83 is pressed, the cooperation of the C-shaped lever 92 and the third spring 93 pushes the locking block at the bottom of the C-shaped lever 92 into the slot 94, which can limit and fix the first plug-in block 83, avoiding the need to press the first plug-in block 83 continuously by hand, so as to realize the micro air pump 7 to inflate the second airbag 61; by pressing the top end of the C-shaped lever 92, the locking block at the bottom of the C-shaped lever 92 is disengaged from the slot 94, and the first plug-in block 83 is pushed upward and reset by the second spring 813; By setting up a miniature air pump 7 and a linkage control mechanism 8, and by utilizing the different operating states of the first connector 83 and the second connector 89, the air path is cleverly switched, thereby enabling the orderly inflation of the first airbag 52 and the second airbag 61. This simplifies the system configuration and reduces the complexity of multi-power source control; A first one-way valve is installed in the inflation path of the first airbag 52 to effectively prevent gas backflow, achieve reliable pressure maintenance in the clamping state, and ensure the stability of the flexible clamping mechanism 5 during operation; a second one-way valve is installed in the inflation path of the second airbag 61 to similarly prevent gas backflow and ensure the long-term effectiveness of the limiting function.

[0028] The C-shaped groove 91 on one side of the first plug-in block 83 has its bottom end located inside the first plug-in groove 82 and connected to one side of the first plug-in block 83. A C-shaped locking rod 92 is slidably installed inside the C-shaped groove 91. Both ends of the C-shaped locking rod 92 extend to the outside of the C-shaped groove 91. The bottom of the C-shaped locking rod 92 is chamfered to form a locking block.

[0029] The top of the mounting base 1 is equipped with a battery 11 and a display screen. The controller is installed inside the mounting base 1. A flexible pressure sensor is fixed to the inner wall of the strap 2. The controller is electrically connected to the battery 11, the display screen, the flexible pressure sensor and the miniature air pump 7.

[0030] The working principle of this invention is as follows: Inflation of the first airbag 52: The micro air pump 7 is activated, and the generated gas enters the waist-shaped groove 84 through the first air passage 81; in the initial state of the first insertion block 83 and the second insertion block 89, the air inlet end of the second air passage 86 is sealed and connected to the air outlet end of the Z-shaped air passage 85, the air outlet end of the second air passage 86 is sealed and connected to the air inlet end of the first L-shaped air passage 810, and the air outlet end of the first L-shaped air passage 810 is sealed and connected to the air inlet end of the clamping air passage. The gas enters the first airbag 52 along the Z-shaped air passage 85, the second air passage 86, the first L-shaped air passage 810 and the clamping air passage; the first one-way valve prevents gas backflow, realizes pressure maintenance of the first airbag 52, and ensures stable operation of the flexible clamping mechanism 5; First airbag 52 deflates: Pressing the second insertion block 89 causes the air inlet end of the second L-shaped airway 812 to seal and connect with the air inlet end of the clamping airway, separating the first L-shaped airway 810 from the clamping airway; the gas inside the first airbag 52 is discharged through the second L-shaped airway 812, the first airbag 52 contracts, and the clamping chain plate 55 releases its clamping limit on the guide tube body 4; after releasing the second insertion block 89, the second spring 813 pushes the second insertion block 89 to reset, making it convenient for the next use; Inflation of the second airbag 61: Pressing the first insertion block 83 causes it to move downwards, sealing the outlet of the Z-shaped airway 85 with the inlet of the third airway 87. The first airway 81 remains connected to the waist-shaped groove 84, and the gas generated by the micro air pump 7 enters the second airbag 61 through the first airway 81, waist-shaped groove 84, Z-shaped airway 85, and third airway 87. The second one-way valve prevents gas backflow. When the first insertion block 83 is pressed, the C-shaped lever 92 and the third spring 93 work together to push the lever at the bottom into the slot 94, limiting and fixing the first insertion block 83. The micro air pump 7 can inflate the second airbag 61 without continuous pressing. Pressing the top end of the C-shaped lever 92 causes the lever to disengage from the slot 94, and the second spring 813 pushes the first insertion block 83 upwards to reset. In this invention, a flexible pressure sensor collects pressure data at the point of contact between the strap 2 and the skin in real time and transmits the data to the controller. After processing the data, the controller displays the pressure value on the screen in real time. When the pressure value exceeds a preset threshold, the controller controls the micro air pump 7 to adjust the inflation volume, such as reducing the inflation volume of the first airbag 52 to reduce the clamping force, or reducing the inflation volume of the second airbag 61 to reduce the massage pressure. When the pressure value is lower than the preset threshold, the controller controls the micro air pump 7 to increase the inflation volume, thereby achieving dynamic pressure control and improving safety and comfort during use.

[0031] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A catheter fixing mechanism with flexible clamping and synchronous massage, comprising a mounting base (1), characterized in that: The mounting base (1) is provided with a mounting groove (3), which is provided with a flexible clamping mechanism (5) for clamping the conduit body (4). Using multiple vertically arranged first airbags (52), when inflated, they can drive the clamping chain plate (55) to clamp the catheter body (4); the top clamping chain plate (55) can bend when the corresponding airbag continues to expand, thereby forming a limit on both sides of the top of the catheter; The mounting base (1) is provided with straps (2) on both sides, and a massage mechanism (6) is installed on the straps (2). The micro air pump (7) is used to inflate the second airbag (61), which pushes the telescopic flexible tube (63) to extend and drives the massage head (64) to massage the wrist. When the exhaust hole (67) is exposed through the hole (62), the airbag exhausts and the massage head returns to its original position, thereby achieving continuous massage and drying the wrist during the exhaust process. The mounting base (1) is provided with a control mechanism (8), which is configured to independently control the inflation and deflation of the first airbag (52) and to control the inflation of the second airbag (61).

2. The catheter fixation mechanism with flexible clamping and synchronous massage according to claim 1, characterized in that: The flexible clamping mechanism (5) includes multiple mounting blocks (51) disposed on both sides inside the mounting groove (3), and multiple first airbags (52) are vertically and equidistantly disposed on one side of the mounting block (51). A limiting ring (53) is fixed to the outer wall of the first airbag (52) near its end. A plurality of limiting rods (54) are arranged equidistantly along the circumference of one side of the limiting ring (53). The limiting rods (54) are slidably connected to the mounting block (51). The clamping chain plate (55) is disposed between one end of a plurality of first airbags (52) on the same side, and has a plurality of plates, each plate being connected to a corresponding first airbag (52).

3. The catheter fixation mechanism with flexible clamping and synchronous massage according to claim 1, characterized in that: The massage mechanism (6) includes a second airbag (61) disposed inside the strap (2). The second airbag (61) has a plurality of through holes (62) arranged in an equidistant array. A first limiting tube (65) is disposed at the top edge of the through hole (62) and the first limiting tube (65) is located inside the second airbag (61). The outer wall of the first limiting tube (65) is damped and slidably fitted with a second limiting tube (66). The top of the second limiting tube (66) is rounded. The bottom of the second limiting tube (66) and fitted onto the outer wall of the first limiting tube (65) is provided with a first spring (69).

4. The catheter fixation mechanism with flexible clamping and synchronous massage according to claim 1, characterized in that: The telescopic flexible tube (63) is sealed and fixed inside the second airbag (61) and sleeved on the second limiting tube (66); The telescopic flexible tube (63) extends in the direction of the first limiting tube (65) and penetrates the interior of the first limiting tube (65); one end of it extending out of the through hole (62) is sealed and fixed with a massage head (64).

5. The catheter fixation mechanism with flexible clamping and synchronous massage according to claim 1, characterized in that: The outer wall of the telescopic flexible tube (63) is provided with a plurality of vent holes (67) equidistantly spaced around the first limiting tube (65). A first sealing ring (68) is fixed on the telescopic flexible tube (63) and located on the upper and lower sides of the vent holes (67) to make sealing and sliding contact with the first limiting tube (65).

6. The catheter fixation mechanism with flexible clamping and synchronous massage according to claim 1, characterized in that: The control mechanism (8) includes a first insertion slot (82) disposed on the mounting base (1), a first insertion block (83) is inserted into the first insertion slot (82), and a waist-shaped groove (84) is provided on one side of the first insertion block (83). The inner side of the waist-shaped groove (84) is provided with a Z-shaped air passage (85), and the other end of the Z-shaped air passage (85) is connected to the other side of the first plug-in block (83). A buckling mechanism (9) is provided on one side of the first plug-in block (83) and above the waist-shaped groove (84).

7. The catheter fixation mechanism with flexible clamping and synchronous massage according to claim 1, characterized in that: The top of the mounting base (1) is provided with a second insertion slot (88) on one side of the first insertion slot (82), and a second insertion block (89) is inserted into the interior of the second insertion slot (88). The inner side of the first insertion slot (82) is provided with a clamping air passage communicating with the first airbag (52), and the second insertion block (89) is provided with a first L-shaped air passage (810) extending laterally on one side, and the first L-shaped air passage (810) is aligned and communicated with the clamping air passage. The first L-shaped air passage (810) is provided with a first one-way valve. The second plug block (89) is provided with a second L-shaped air passage (812) on one side and above the first L-shaped air passage (810). The second plug block (89) extends to the outside of the first plug groove (82) and is provided with a through groove (811) that communicates with the second L-shaped air passage (812).

8. The catheter fixation mechanism with flexible clamping and synchronous massage according to claim 6, characterized in that: A second air passage (86) is provided between the first insertion slot (82) and the second insertion slot (88) for connecting the Z-shaped air passage (85) and the first L-shaped air passage (810); A third airway (87) communicating with the second airbag (61) is provided on the inner side of the first insertion slot (82) and below the second airway (86). A second one-way valve is provided inside the third airway (87).

9. The catheter fixation mechanism with flexible clamping and synchronous massage according to claim 1, characterized in that: A micro air pump (7) is provided on the top of the mounting base (1) and on one side of the first insertion slot (82). A first air passage (81) is provided on the inner side of the first insertion slot (82) corresponding to the waist-shaped groove (84). One end of the first air passage (81) is connected to the air inlet of the micro air pump (7), and the other end of the first air passage (81) is provided with a protruding nozzle, which extends into the waist-shaped groove (84).

10. The catheter fixation mechanism with flexible clamping and synchronous massage according to claim 1, characterized in that: The top of the mounting base (1) is provided with a storage battery (11) and a display screen. The mounting base (1) is provided with a controller. The inner wall of the strap (2) is fixed with a flexible pressure sensor. The controller is electrically connected to the storage battery (11), the display screen, the flexible pressure sensor and the micro air pump (7).

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