Hemodialysis catheter fixing device for hemodialysis center and fixing method of hemodialysis catheter fixing device

Abstract

The invention relates to the technical field of medical instruments, in particular to a hemodialysis center hemodialysis catheter fixing device and a fixing method thereof.The fixing device comprises a magnetic suction type catheter adjusting and fixing box, a dovetail type catheter fixing clamp and a tourniquet. The magnetic suction type guide pipe adjusting and fixing box comprises a box body, a magnet block, a controller, a bottom plate and a top plate. The bottom plate and the top plate are fixedly connected to the inner bottom wall of the box body, and the top plate is provided with an 8-shaped through hole. A driving part is mounted on one side of the bottom plate, and a first gear is fixedly connected to an output shaft of the driving part; a plurality of rotating shafts are rotationally connected to the bottom plate, and each shaft is provided with a second gear and a circular block embedded into the 8-shaped through hole to form an 8-shaped groove. A winding rod is fixedly connected to the circular block, and a winding groove is formed in the rod and used for winding a dialysis catheter. And a storage assembly for storing the wound dialysis catheter is also arranged in the 8-shaped groove. According to the hemodialysis catheter fixing device, the fixing device is arranged outside the hemodialysis catheter, and the function that the hemodialysis catheter fixing device can automatically store the hemodialysis catheter can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a hemodialysis catheter fixing device for a hemodialysis center and a fixing method thereof. Background Art

[0002] Uremia is a common outcome of the end-stage of chronic kidney disease, characterized by a wide range of disease involvement, difficulty in treatment, and high mortality. Maintenance hemodialysis is the main treatment method to stabilize the patient's internal environment, replace kidney function, and prolong the patient's survival time. The effective implementation of hemodialysis treatment and the treatment effect depend to a large extent on the function of vascular access. Good vascular access is a necessary condition for efficient and continuous continuous blood purification treatment. The internal jugular central venous catheter is a commonly used catheter access for initial short-term hemodialysis; semi-permanent central venous catheters and arteriovenous fistulas are commonly used hemodialysis vascular access for maintenance hemodialysis patients.

[0003] Studies have shown that when the exposed internal jugular vein catheter is connected to the dialysis catheter, the excessively long dialysis catheter line is easily affected by gravity and pulling force, which can easily lead to poor adhesion of the film and catheter displacement, thereby increasing the incidence of complications such as infection, thrombosis, bleeding, air embolism, and unplanned extubation, and the risk of unplanned extubation, and increasing the workload of frequent dressing changes for medical staff. In the existing technology, the storage method for hemodialysis catheters is mostly single-dimensional fixation, using materials such as transparent dressings, gauze or silk tape, which has great safety risks in clinical use.

[0004] In summary, how to solve the safety hazards of the existing hemodialysis pipeline storage and fixation methods has become a difficult problem that needs to be solved urgently in this field. Therefore, it is necessary to propose a new hemodialysis catheter fixing device and fixing method for a hemodialysis center. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a hemodialysis catheter fixing device and a fixing method for a hemodialysis center, which can realize the function of automatically storing the dialysis catheter by the hemodialysis catheter fixing device by arranging the hemodialysis catheter fixing device outside the dialysis catheter, and at the same time avoid the excessively long dialysis catheter line being affected by gravity and pulling force, which may easily lead to undesirable phenomena such as loose adhesion of the film and displacement of the catheter.

[0006] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: a hemodialysis catheter fixing device for a hemodialysis center, comprising a magnetic catheter adjustment and fixing box, a dovetail catheter fixing clamp and a compression cuff; the magnetic catheter adjustment and fixing box comprises a box body and a controller, a box cover is detachably connected to the top of the box body, a magnet block is rotatably connected to the side wall of the box body, and a catheter storage assembly for storing the dialysis catheter is provided in the box body; the catheter storage assembly comprises a bottom plate and a top plate, both of which are fixedly connected to the bottom wall of the box body, and an 8-shaped through hole is opened on the top plate.

[0007] A driving member is fixedly connected to one side wall of the upper part of the bottom plate, and a plurality of supporting rods are fixedly connected to one side wall of the bottom plate away from the driving member, and one end of the supporting rods away from the bottom plate is fixedly connected to the top plate; the controller is used to control the opening and closing of the driving member; the output shaft of the driving member passes through the bottom plate and the top plate and is rotatably connected to the bottom plate and the top plate; the output shaft of the driving member is coaxially fixedly connected to the first gear;

[0008] A plurality of rotating shafts are rotatably connected on the side walls between the bottom plate and the top plate, and the ends of the rotating shafts away from the bottom plate are coaxially fixedly connected with the second gears, and the second gears are provided with a plurality of U-shaped grooves; a circular block is fixedly connected to the side of the second gear away from the rotating shaft, and the circular blocks are embedded in the 8-shaped through holes and the 8-shaped through holes form an 8-shaped groove.

[0009] A winding rod is coaxially fixedly connected to a side wall of the circular block away from the second gear, and a plurality of winding grooves are provided on the winding rod; the dialysis catheters are wound in the winding grooves; and a plurality of dialysis catheter storage components for winding on the winding rod are provided in the 8-shaped groove.

[0010] The technical principles of the above scheme are as follows:

[0011] The driving member in the device is coaxially fixedly connected with the first gear through the output shaft. When the driving member is started, it will drive the first gear to rotate; the first gear is meshed with a plurality of second gears. When the first gear rotates, it will drive all the second gears to rotate synchronously; since the second gears are coaxially fixed on the rotating shaft, the rotating shaft will also rotate accordingly; the circular block and the winding rod on the rotating shaft will rotate accordingly, and since the winding rod has a winding groove, the dialysis catheter can be wound in the winding groove; as the circular block and the winding rod rotate, the dialysis catheter will be automatically stored and organized.

[0012] The above scheme has the following beneficial effects:

[0013] 1. The present invention realizes the automatic storage and arrangement function of the hemodialysis catheter through the design of the driving member, gear transmission and winding rod; medical staff do not need to manually arrange and fix the dialysis catheter, which greatly improves the work efficiency and reduces the safety hazards caused by improper human operation; at the same time, the automatic storage function can also ensure that the dialysis catheter is always kept neat and orderly during use, avoiding the problems of catheter entanglement, knotting, etc.

[0014] 2. The winding groove on the winding rod of the present invention can tightly wind the dialysis catheter. At the same time, the storage component arranged in the 8-shaped groove will exert a certain pressure on the dialysis catheter, ensuring that the dialysis catheter is more firmly fixed in the winding groove; this double fixing mechanism effectively avoids the displacement, falling off and other adverse phenomena of the dialysis catheter caused by gravity or pulling force, thereby improving the safety and stability of treatment.

[0015] 3. The present invention can store multiple dialysis catheters through multiple hemodialysis center hemodialysis catheter fixing devices, further increasing the practicality of the present invention.

[0016] Furthermore, the storage component includes a circular slider, which is located in the U-shaped groove and slidably cooperates with the U-shaped groove. The slider is used to move to different U-shaped grooves under the drive of the driving member; a sliding rod is fixedly connected to the top of the slider, and the sliding rod and the 8-shaped groove are slidably cooperated; an arrow-shaped guide block is fixedly connected to the top of the sliding rod, a limit plate is fixedly connected to the top of the guide block, a tightening rod is fixedly connected to the top of the limit plate, and an expansion component for tightening the dialysis catheter is provided on the tightening rod.

[0017] Beneficial effect: since the slider is placed on the U-shaped groove, the rotation of the second gear can drive the slider and then drive the slide bar to slide in the 8-shaped groove; at the same time, since a plurality of U-shaped grooves are opened on the second gear, as the second gear rotates so that the U-shaped grooves mesh with each other, under the action of the meshing teeth on both sides of the U-shaped groove on the second gear, the circular slider can be driven to the U-shaped groove on the adjacent second gear, thereby realizing the 8-shaped movement of the slider along the 8-shaped groove, thereby driving the tightening rod to make an 8-shaped movement along the 8-shaped groove, and at the same time, the arrow-shaped guide block on the tightening rod can guide the tightening rod to the U-shaped groove on the adjacent second gear when the tightening rod moves along the 8-shaped groove to the middle of the 8-shaped groove, so that the tightening rod can smoothly make an 8-shaped movement in the 8-shape.

[0018] Furthermore, the expansion assembly includes airbags, which are all sleeved on the tightening rod; the airbag input end is connected to the positive pressure pump assembly, and the airbag output end is connected to the negative pressure pump assembly; the controller is used to control the opening and closing of the positive pressure pump assembly and the negative pressure pump assembly.

[0019] Beneficial effect: By inflating the airbag, the tightening rod can make an 8-shaped movement in the 8-shaped groove, and the airbag can tightly squeeze the dialysis catheter on the winding rod, so that the dialysis catheter is tightly wound on the winding rod, thereby winding the dialysis catheter and tightening the dialysis catheter at the same time.

[0020] Furthermore, a wire clamping groove is provided at one end of the winding rod away from the circular block along the radial direction of the winding rod, and the middle part of the dialysis catheter is clamped in the wire clamping groove.

[0021] Beneficial effect: The wire clamping groove can prevent the dialysis catheter from slipping or falling off when subjected to external force, thereby ensuring the continuity and stability of hemodialysis treatment.

[0022] Furthermore, the airbag output end is also connected to a solenoid valve, and the controller is used to control the opening and closing of the solenoid valve.

[0023] Beneficial effect: By connecting the solenoid valve at the output end of the airbag and controlling its opening and closing by the controller, the gas pressure in the airbag can be accurately adjusted.

[0024] Furthermore, an air pressure sensor is fixedly connected to the inner wall of the airbag, and the controller is used to receive an air pressure numerical signal from the air pressure sensor.

[0025] Beneficial effect: The air pressure sensor can monitor the air pressure value in the airbag in real time and send it to the controller. The controller controls the operation of the positive pressure pump component and the negative pressure pump component according to the real-time air pressure in the airbag to achieve precise regulation of the air pressure in the airbag.

[0026] Furthermore, a rotation speed sensor is fixedly connected to a position on the bottom plate close to the first gear, and the controller is used to receive a rotation speed signal of the first gear measured by the rotation speed sensor.

[0027] Beneficial effect: The rotation speed sensor can monitor the number of rotations of the first gear in real time, and the controller can control the length of the dialysis catheter stored by the device in real time according to the number of rotations of the first gear.

[0028] Furthermore, several centimeters of scale lines are engraved on the outer wall of the dialysis catheter, and the winding rod is coated with an antibacterial coating.

[0029] Beneficial effects: The graduation lines help medical staff to monitor the status of the dialysis catheter at any time during use, ensuring that it is in the correct position and length, thereby improving the accuracy and safety of hemodialysis treatment.

[0030] Furthermore, the hemodialysis catheter is fixed with a dovetail type fixing assembly for fixing the hemodialysis catheter near the patient end to the patient;

[0031] The dovetail fixing assembly includes an elastic clip, and pressure rods are symmetrically hinged on both side walls of the elastic clip; a lower tube clamp is fixedly connected to the top of the elastic clip, and an upper tube clamp is hinged on the lower tube clamp. A plurality of semicircular tube grooves are opened on the top of the lower tube clamp and the bottom of the upper tube clamp, and the dialysis catheters are placed in the semicircular tube grooves; a buckle is fixedly connected to one side wall of the lower tube clamp, and the upper tube clamp and the lower tube clamp are detachably connected by the buckle.

[0032] Beneficial effects: The design of the dovetail fixing component, through the coordinated use of the elastic clip, the pressure rod, the lower tube clamp, the upper tube clamp and the buckle, can firmly fix the dialysis catheter close to the patient's end to the patient's clothes, effectively preventing the dialysis catheter from accidentally falling off or shifting during use, and further improving the safety and stability of hemodialysis treatment.

[0033] Further, based on the above-mentioned method for fixing the hemodialysis catheter fixing device of the hemodialysis center, the method comprises the following steps:

[0034] Step 1: Before preparing for dialysis, the medical staff will attach the magnet on the box body of the magnetic catheter adjustment and fixing box to the T-shaped joint at the lower inner side of the bed rail, and can choose to further fix the box body to the bed rail through the Velcro on the side of the box body.

[0035] Step 2: After the patient is on the hemodialysis machine, the medical staff will first open the box cover and take out the dovetail catheter fixing clip in the box. For patients with arteriovenous fistula, the U-shaped fixed hemodialysis catheter will be arranged smoothly, inserted into the dovetail catheter fixing clip's back slot, and the elastic clip will be fixed to the patient's upper arm sleeve or acromion. For patients with long-term catheter placement, the proximal end of the hemodialysis catheter will be inserted into the dovetail catheter fixing clip and fixed to the patient's clothing placket. Afterwards, the medical staff will pre-evaluate and leave enough room for the patient to move on the bed based on the distance from the dialysis machine to the patient's dialysis site, connect the arteriovenous dialysis catheter to the box body's wire slot, pass both ends of the dialysis catheter through the box body, and close the box body.

[0036] Step three: Use the magnetic catheter adjustment and fixing box to adjust the dialysis catheter to an appropriate length that leaves ample space for the patient to move.

[0037] Step 4: When the patient is taken off the hemodialysis machine, the cuff can be released from the box body and used for pressure bandaging and hemostasis at the patient's hemodialysis puncture point; when not in use, it can be stored on the side of the box body to avoid being lost.

[0038] Step 5: After the hemodialysis is completed, the dialysis tubing is removed from the dovetail catheter clamp and the box body and treated as medical waste. The dovetail catheter clamp is sprayed with disinfectant or wiped with disinfectant wipes until it is dry, and then stored in the disinfected magnetic suction box body. After the patient's fistula is hemostatic, the compression cuff is also disinfected and stored on the side of the box body. The patient keeps it in an integrated manner.

[0039] Beneficial effects: This method improves operational convenience and accuracy: by presetting the value of the hemodialysis tubing length and automatically tightening it, medical staff do not need to manually adjust the catheter length, which greatly simplifies the operating process. At the same time, this method achieves standardization and normalization of the hemodialysis tubing fixation process through preset parameters, automatic control and precise measurement, which helps to improve the overall level of medical services, reduce the occurrence of medical errors and disputes, and shorten operation time. At the same time, it improves the comfort and mobility of the catheter length, ensuring the comfort and safety of hemodialysis treatment.

[0040] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 1 is an axonometric view of a catheter storage assembly in an embodiment of the present invention.

[0042] Figure 2 It is a front view of the catheter storage assembly in an embodiment of the present invention.

[0043] Figure 3 It is a front cross-sectional view of the catheter storage assembly in an embodiment of the present invention.

[0044] Figure 4 It is an axonometric view of the storage assembly and the expansion assembly in the embodiment of the present invention.

[0045] Figure 5 1 is an axonometric view of a dovetail-type catheter fixing clamp according to an embodiment of the present invention.

[0046] Figure 6 It is an axonometric view of the box body in the embodiment of the present invention.

[0047] Figure 7 Schematic diagram of a method for fixing a hemodialysis catheter fixing device in a hemodialysis center according to an embodiment of the present invention.

[0048] The figure marks in the drawings of the specification include: 1, bottom plate; 2, top plate; 3, support rod; 4, driving member; 5, first gear; 6, second gear; 7, U-shaped groove; 8, circular block; 9, winding rod; 10, winding groove; 11, slider; 12, slide bar; 13, guide block; 14, limit plate; 15, tightening rod; 16, air bag; 17, wire clamping groove; 18, elastic clip; 19, pressure rod; 20, lower tube clamp; 21, upper tube clamp; 22, buckle; 23, box body; 24, magnet block; 25, compression cuff. DETAILED DESCRIPTION

[0049] The following is further described in detail through specific implementation methods:

[0050] Embodiment 1:

[0051] As attached Figure 1-Figure 6 The invention discloses a hemodialysis catheter fixing device for a hemodialysis center, comprising a magnetic catheter adjustment fixing box, a dovetail catheter fixing clamp and a cuff (25); the magnetic catheter adjustment fixing box comprises a box body (23) and a controller, the top of the box body (23) is detachably connected to a box cover, the side wall of the box body (23) is rotatably connected to a magnet block (24), and a catheter storage assembly for storing a hemodialysis catheter is arranged in the box body (23); the catheter storage assembly comprises a bottom plate (1) and a top plate (2), the bottom plate (1) and the top plate (2) are both fixedly connected to the bottom wall of the box body (23) by screws, and an 8-shaped through hole is opened on the top plate (2);

[0052] A driving member (4) is fixedly connected to a side wall of the upper part of the bottom plate (1) by means of screws, a side wall of the bottom plate (1) away from the driving member (4) is fixedly connected to a plurality of supporting rods (3) by means of screws, and one end of the supporting rods (3) away from the bottom plate (1) is fixedly connected to the top plate (2) by means of screws; a controller is used to control the opening and closing of the driving member (4); an output shaft of the driving member (4) passes through the bottom plate (1) and the top plate (2) and is rotatably connected to the bottom plate (1) and the top plate (2); and a first gear (5) is coaxially fixedly welded to the output shaft of the driving member (4).

[0053] A plurality of rotating shafts are rotatably connected on the side wall between the bottom plate (1) and the top plate (2); a second gear (60) is coaxially fixedly welded to one end of the rotating shaft away from the bottom plate (1); and a plurality of U-shaped grooves (7) are formed on the second gear (6); a circular block (8) is integrally formed on one side of the second gear (6) away from the rotating shaft; and the circular blocks (8) are embedded in the 8-shaped through hole and the 8-shaped through hole forms an 8-shaped groove.

[0054] A winding rod (9) is coaxially integrally formed on a side wall of the circular block (8) away from the second gear (6), and a plurality of winding grooves (10) are provided on the winding rod (9); the dialysis catheters are wound in the winding grooves (10); and a plurality of storage components for tightening the dialysis catheters wound on the winding rod (9) are provided in the 8-shaped grooves.

[0055] The storage assembly comprises a circular slider (11), the slider (11) is located in the U-shaped groove (7) and is slidably matched with the U-shaped groove (7), and the slider (11) is used to move to different U-shaped grooves (7) under the drive of the driving member (4); a slider (12) is integrally formed on the top of the slider (11), and the slider (12) and the 8-shaped groove are slidably matched; an arrow-shaped guide block (13) is integrally formed on the top of the slider (12), a limit plate (14) is integrally formed on the top of the guide block (13), a tightening rod (15) is integrally formed on the top of the limit plate (14), and an expansion assembly for tightening the dialysis catheter is provided on the tightening rod (15).

[0056] The expansion assembly comprises an air bag (16), and the air bags (16) are sleeved on the tightening rod (15); the input end of the air bag (16) is connected to the positive pressure pump assembly, and the output end of the air bag (16) is connected to the negative pressure pump assembly; the controller is used to control the opening and closing of the positive pressure pump assembly and the negative pressure pump assembly.

[0057] A wire clamping groove (17) is provided at one end of the winding rod (9) away from the circular block (8) along the radial direction of the winding rod (9), and the middle part of the dialysis catheter is clamped in the wire clamping groove (17).

[0058] The output end of the airbag (16) is also connected to a solenoid valve, and the controller is used to control the opening and closing of the solenoid valve.

[0059] An air pressure sensor is fixedly bonded to the inner wall of the air bag (16), and the controller is used to receive an air pressure value signal from the air pressure sensor.

[0060] A rotation speed sensor is fixedly connected to a position on the bottom plate (1) close to the first gear (5) via screws, and the controller is used to receive a rotation speed signal of the first gear (5) measured by the rotation speed sensor.

[0061] The dovetail-shaped catheter fixing clamp comprises an elastic clamp (18), and pressure rods (19) are symmetrically hinged on both side walls of the elastic clamp (18); a lower tube clamp (20) is fixedly connected to the top of the elastic clamp (18) by screws, and an upper tube clamp (21) is hinged on the lower tube clamp (20); a plurality of semicircular tube grooves are formed on the top of the lower tube clamp (20) and the bottom of the upper tube clamp (21), and the dialysis catheters are placed in the semicircular tube grooves; a buckle (22) is integrally formed on one side wall of the lower tube clamp (20), and the upper tube clamp (21) and the lower tube clamp (20) are detachably connected by the buckle (22), and the inner wall of the semicircular tube groove is coated with a medical rubber layer.

[0062] The specific implementation process is as follows:

[0063] First of all, before preparing for hemodialysis treatment, medical staff need to predict and determine the appropriate length of the dialysis catheter from the patient's body to the external dialysis device; ensuring that the dialysis catheter is neither too long to cause unnecessary trouble, nor too short to affect the treatment effect.

[0064] For example, if the dialysis catheter is too long, it may cause the dialysis line to hang down at the bedside during treatment, causing the catheter to be pulled off the needle, or fold under the patient's torso as the patient turns over, causing unnecessary trouble and even physical harm to the patient.

[0065] To avoid this, healthcare professionals make sure the dialysis catheter is only slightly longer than necessary to allow enough room for movement and manipulation but not to cause interference.

[0066] In this embodiment, the dialysis catheter is wound in the winding groove (10) of the winding rod (9) and fixed by the storage assembly. This design not only helps to manage the length of the dialysis catheter, but also ensures its stability and safety during treatment.

[0067] A dialysis line that is too short may limit the patient's flexibility in turning over and may even cause catheter traction, making it impossible for treatment to proceed smoothly.

[0068] Healthcare professionals determine the minimum acceptable length of dialysis catheters based on the patient's size, the layout of the hemodialysis machine, and the needs of the treatment process.

[0069] In this embodiment, medical staff can fine-tune the length of the dialysis catheter as needed during the treatment process to ensure that it is neither too short to affect the treatment effect nor too long to cause inconvenience and safety risks.

[0070] Next, the medical staff clips the middle part of the new dialysis catheter into the wire clip groove (17) on the winding rod (9); the design of the wire clip groove (17) enables the dialysis pipeline to be firmly fixed on the winding rod (9) to prevent slippage or falling off due to external force during the dialysis process; then, the two ends of the dialysis pipeline are passed through the reserved holes on the box body so as to be connected to the dialysis machine and the blood vessels in the patient's body, and then the medical staff adsorbs the hemodialysis catheter fixing device on the inner side of the patient's bed through the magnet block on the side wall of the box body.

[0071] Before dialysis begins, the medical staff inputs the value of the dialysis catheter length provided by the manufacturer and the blood extraction side of the hemodialysis machine near or opposite to the dialysis machine into the controller; the controller calculates the length of the dialysis catheter to be stored based on the input length value, and controls the driving member (4) to start working. In this embodiment, the driving member (4) is a stepping motor.

[0072] After the stepper motor receives the command from the controller, its output shaft starts to rotate and drives the first gear (5) coaxially fixedly connected thereto to rotate together; since the first gear (5) is meshed with a plurality of second gears (6), the rotation of the first gear (5) drives all the second gears (6) to rotate synchronously; the rotation of the second gear (6) drives the circular block (8) coaxially integrally formed therewith to rotate together; the winding rod (9) on the circular block (8) also rotates accordingly, automatically receiving and arranging the dialysis catheter into the winding groove (10).

[0073] Since the slider (11) is placed on the U-shaped groove (7), the rotation of the second gear (6) can drive the slider (11) and then drive the slide bar (12) to slide in the 8-shaped groove; at the same time, since a plurality of U-shaped grooves (7) are provided on the second gear (6), when the U-shaped grooves (7) are meshed with each other as the second gear (6) rotates, the circular slider (11) can be driven to the U-shaped groove (7) on the adjacent second gear (6) under the action of the meshing teeth on both sides of the U-shaped groove (7). 7), the slider (11) is made to perform an 8-shaped movement along the 8-shaped groove, thereby driving the tightening rod (15) to perform a continuous movement in the shape of an 8 along the 8-shaped groove. At the same time, the arrow-shaped guide block (13) on the tightening rod (15) can guide the tightening rod (15) to the U-shaped groove (7) on the adjacent second gear (6) when the tightening rod (15) moves along the 8-shaped groove to the middle of the 8-shaped groove, so that the tightening rod (15) can smoothly perform a continuous movement in the shape of an 8 in the 8-shaped groove.

[0074] In order to further enhance the fixation effect of the dialysis catheter, the airbag (16) in the expansion assembly is used to tighten the dialysis catheter. The controller controls the positive pressure pump assembly to inflate the airbag (16). In this embodiment, the positive pressure pump assembly is an air pump, and the negative pressure pump assembly is a negative pressure pump; the airbag (16) is expanded and tightly squeezes the dialysis catheter along the circumference of the winding rod (9). At the same time, the air pressure sensor monitors the air pressure value in the airbag (16) in real time and feeds the data back to the controller. The controller accurately controls the opening and closing of the air pump and the negative pressure pump according to the feedback signal of the air pressure sensor to ensure that the air pressure in the airbag (16) is maintained within an appropriate range. By expanding the airbag (16), the tightening rod (15) can make an 8-shaped movement in the 8-shaped groove, and the airbag (16) can tightly squeeze the dialysis catheter on the winding rod (9), so that the dialysis catheter is tightly wound in the winding groove (10) of the winding rod (9), so that the dialysis catheter can be wound and tightened at the same time. When the dialysis catheter is wound, the controller sends a control signal to control the positive pressure pump to close, the solenoid valve to open, and the negative pressure pump to open. At this time, the negative pressure pump can extract the gas in the airbag (16) to achieve the contraction function of the airbag (16).

[0075] During the dialysis process, the speed sensor monitors the number of rotations of the first gear (5) in real time and sends the data to the controller. The controller controls the storage length of the dialysis catheter in real time according to the signal of the speed sensor to ensure that the dialysis catheter is always kept within a preset length range.

[0076] When dialysis is completed, the medical staff will remove the dialysis tubing from the fixture, disinfect the fixture, and give it to the patient for safekeeping for the next use.

[0077] The medical staff can place the dialysis tube at the proximal end of the patient in the semicircular tube groove, and then fix the upper tube clamp (21) through the buckle (22), so that the semicircular tube groove can firmly clamp the dialysis catheter. Then, the medical staff can press the pressure rod (19) to open the opening of the elastic clip (18), and clamp the opening of the elastic clip (18) on the patient's clothes, so that the dialysis tube near the patient's end can be firmly fixed on the patient's clothes, effectively preventing the dialysis tube from accidentally falling off or shifting during use, and further improving the safety and stability of hemodialysis treatment.

[0078] For example, a dialysis catheter that is inserted into the neck for a long time or temporarily, or a hemodialysis line that has just been wrapped in a sterile towel can be fixed to the patient's lapel by an elastic clip (18); an arteriovenous fistula hemodialysis line can be fixed to the patient's acromion or upper arm cuff by an elastic clip (18).

[0079] During the whole process, medical staff only need to perform simple selection input and pick-and-place operations, which greatly simplifies the workflow and improves work efficiency. At the same time, the design of the fixing device realizes the automatic storage and sorting function of the hemodialysis catheter; medical staff do not need to manually sort and fix the dialysis catheter, which greatly improves work efficiency and reduces safety hazards caused by improper human operation; at the same time, the automatic storage function can also ensure that the dialysis catheter is always kept neat and orderly during use, avoiding problems such as catheter entanglement and knotting.

[0080] The present invention can store and fix the hemodialysis pipeline through multiple hemodialysis center hemodialysis catheter fixing devices, further increasing the practicality of the present invention.

[0081] Embodiment 2:

[0082] The difference from Example 1 is that several centimeter scale lines are engraved on the outer wall of the dialysis catheter.

[0083] The specific implementation process is as follows: The scale lines help medical staff to monitor the status of the dialysis catheter at any time during use, ensuring that it is in the correct position and length, thereby improving the accuracy and safety of hemodialysis treatment.

[0084] Embodiment 3:

[0085] like Figure 1 As shown, the difference from Example 2 is that the winding rod (9) is coated with an antibacterial coating.

[0086] The specific implementation process is as follows: In this embodiment, the antibacterial coating uses a silver ion coating. When the dialysis catheter is wound on the winding rod (9), the silver ion coating can effectively prevent certain viruses or bacteria on the winding rod (9) from growing and contaminating the dialysis catheter.

[0087] Embodiment 4:

[0088] As attached Figure 7 As shown, the difference from Example 3 is that the fixing method of the hemodialysis catheter fixing device of the hemodialysis center based on the above-mentioned method includes the following steps:

[0089] Step 1: Before preparing for dialysis, the medical staff will attach the magnet block (24) on the box body (23) of the magnetic catheter adjustment and fixing box to the T-shaped joint below the bed rail of the hospital bed, and can choose to further fix the box body (23) to the bed rail through the Velcro on the side of the box body (23) The compression belt (25) is fixed.

[0090] Step 2: After the patient is put on the hemodialysis machine, the medical staff first opens the box cover on the box body (23) and takes out the dovetail catheter fixing clip in the box body (23); for patients with arteriovenous fistula, the fixed hemodialysis catheter is arranged smoothly, inserted into the back side of the dovetail catheter fixing clip, and the elastic clip (18) is fixed to the patient's upper arm sleeve or acromion; for patients with long-term catheter placement, the proximal end of the hemodialysis catheter is inserted into the dovetail catheter fixing clip and fixed to the patient's clothing placket; then, the medical staff preliminarily evaluates and leaves enough room for the patient to move on the bed based on the distance from the dialysis machine to the patient's dialysis site, connects the arteriovenous dialysis catheter to the wire slot (17) of the box body (23), passes both ends of the dialysis pipeline through the box body (23), and closes the box body (23).

[0091] Step three: Use the magnetic catheter adjustment and fixing box to adjust the dialysis catheter to an appropriate length that leaves ample space for the patient to move.

[0092] Step 4: When the hemodialysis machine is removed, the compression cuff (25) can be released from the box body (23) and used for pressure bandaging and hemostasis of the patient's hemodialysis puncture point; when not in use, it can be stored on the side of the box body (23) to avoid being lost.

[0093] Step 5, after the hemodialysis is completed, the dialysis catheter is taken out from the dovetail catheter fixing clamp and the box body (23) and treated as medical waste; the dovetail catheter fixing clamp is sprayed with disinfectant or wiped with disinfectant wipes until it is dry, and then stored in the disinfected magnetic suction box body (23); after the patient's fistula is hemostatic, the compression cuff is also disinfected and stored on the side of the box body (23) for integrated storage by the patient for safekeeping.

[0094] The method improves the convenience and accuracy of operation. By presetting the dialysis catheter length value and automatically tightening it, medical staff do not need to manually adjust the catheter length, which greatly simplifies the operation process. At the same time, the method realizes the standardization and normalization of the hemodialysis catheter fixation process through means such as preset parameters, automatic control and precise measurement, which helps to improve the overall level of medical services, reduce the occurrence of medical errors and disputes, and reduce operation time. At the same time, it improves the accuracy of catheter length and ensures the comfort and safety of hemodialysis treatment.

[0095] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A hemodialysis catheter fixing device for a hemodialysis center, characterized in that: The invention comprises a magnetic catheter adjustment and fixing box, a dovetail catheter fixing clamp and a cuff (25); the magnetic catheter adjustment and fixing box comprises a box body (23) and a controller; the top of the box body (23) is detachably connected to a box cover; the side wall of the box body (23) is rotatably connected to a magnet block (24); a catheter storage assembly for storing a dialysis catheter is provided in the box body (23); the catheter storage assembly comprises a bottom plate (1) and a top plate (2); the bottom plate (1) and the top plate (2) are both fixedly connected to the bottom wall of the box body (23); and an 8-shaped through hole is provided on the top plate (2); A driving member (4) is fixedly connected to one side wall of the upper part of the bottom plate (1); a plurality of supporting rods (3) are fixedly connected to one side wall of the bottom plate (1) away from the driving member (4); one end of the supporting rods (3) away from the bottom plate (1) is fixedly connected to the top plate (2); a controller is used to control the opening and closing of the driving member (4); an output shaft of the driving member (4) passes through the bottom plate (1) and the top plate (2) and is rotatably connected to the bottom plate (1) and the top plate (2); a first gear (5) is coaxially fixedly connected to the output shaft of the driving member (4); A plurality of rotating shafts are rotatably connected on the side wall between the bottom plate (1) and the top plate (2); the ends of the rotating shafts away from the bottom plate (1) are coaxially fixedly connected to the second gear (6); the second gear (6) is provided with a plurality of U-shaped grooves (7); the second gear (6) is fixedly connected to the side away from the rotating shaft; the circular blocks (8) are embedded in the 8-shaped through holes and the 8-shaped through holes form 8-shaped grooves; A winding rod (9) is coaxially fixedly connected to a side wall of the circular block (8) away from the second gear (6), and a plurality of winding grooves (10) are provided on the winding rod (9); the dialysis catheters are wound in the winding grooves (10); and a plurality of storage components for tightening the dialysis catheters wound on the winding rod (9) are provided in the 8-shaped grooves.

2. The hemodialysis center hemodialysis catheter fixing device according to claim 1, characterized in that: The storage assembly comprises a circular slider (11), the slider (11) is located in the U-shaped groove (7) and is slidably matched with the U-shaped groove (7), and the slider (11) is used to move to different U-shaped grooves (7) under the drive of the driving member (4); a slide rod (12) is fixedly connected to the top of the slider (11), and the slide rod (12) and the 8-shaped groove are slidably matched; The top of the slide bar (12) is fixedly connected to an arrow-shaped guide block (13), the top of the guide block (13) is fixedly connected to a limit plate (14), the top of the limit plate (14) is fixedly connected to a tightening rod (15), and the tightening rod (15) is provided with an expansion component for tightening the dialysis catheter.

3. The hemodialysis center hemodialysis catheter fixing device according to claim 2, characterized in that: The expansion assembly comprises an air bag (16), and the air bags (16) are sleeved on the tightening rod (15); the input end of the air bag (16) is connected to the positive pressure pump assembly, and the output end of the air bag (16) is connected to the negative pressure pump assembly; the controller is used to control the opening and closing of the positive pressure pump assembly and the negative pressure pump assembly.

4. The hemodialysis center hemodialysis catheter fixing device according to claim 3, characterized in that: A wire clamping groove (17) is provided at one end of the winding rod (9) away from the circular block (8) along the radial direction of the winding rod (9), and the middle part of the dialysis catheter is clamped in the wire clamping groove (17).

5. The hemodialysis catheter fixing device for a hemodialysis center according to claim 4, characterized in that: The output end of the airbag (16) is also connected to a solenoid valve, and the controller is used to control the opening and closing of the solenoid valve.

6. The hemodialysis center hemodialysis catheter fixing device according to claim 5, characterized in that: An air pressure sensor is fixedly connected to the inner wall of the air bag (16), and the controller is used to receive an air pressure value signal from the air pressure sensor.

7. The hemodialysis catheter fixing device for a hemodialysis center according to claim 6, characterized in that: A rotation speed sensor is fixedly connected to a position on the bottom plate (1) close to the first gear (5), and the controller is used to receive a rotation speed signal of the first gear (5) measured by the rotation speed sensor.

8. The hemodialysis catheter fixing device for a hemodialysis center according to claim 7, characterized in that: Several centimeter scale lines are engraved on the outer wall of the dialysis catheter, and the winding rod (9) is coated with an antibacterial coating.

9. The hemodialysis center hemodialysis catheter fixing device according to claim 8, characterized in that: The dovetail-shaped catheter fixing clamp comprises an elastic clamp (18), and pressure rods (19) are symmetrically hinged on both side walls of the elastic clamp (18); a lower tube clamp (20) is fixedly connected to the top of the elastic clamp (18) by screws, and an upper tube clamp (21) is hinged on the lower tube clamp (20); a plurality of semicircular tube grooves are formed on the top of the lower tube clamp (20) and the bottom of the upper tube clamp (21), and the dialysis catheters are placed in the semicircular tube grooves; a buckle (22) is integrally formed on one side wall of the lower tube clamp (20), and the upper tube clamp (21) and the lower tube clamp (20) are detachably connected by the buckle (22), and the inner wall of the semicircular tube groove is coated with a medical rubber layer.

10. A method for fixing a hemodialysis catheter in a hemodialysis center, based on the method for fixing a hemodialysis catheter fixing device in a hemodialysis center according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Before dialysis, the medical staff attaches the magnet block (24) on the box body (23) of the magnetic catheter adjustment and fixing box to the T-shaped joint below the bed rail of the hospital bed, and can further fix the box body (23) to the bed rail through the Velcro on the side of the box body (23) and the compression belt (25); Step 2: After the patient is put on the hemodialysis machine, the medical staff first opens the box cover on the box body (23) and takes out the dovetail catheter fixing clip in the box body (23); for patients with arteriovenous fistula, the fixed hemodialysis catheter is arranged smoothly, inserted into the back side of the dovetail catheter fixing clip, and the elastic clip (18) is fixed to the patient's upper arm sleeve or acromion; for patients with long-term catheter placement, the proximal end of the hemodialysis catheter is inserted into the dovetail catheter fixing clip and fixed to the patient's clothing placket; then, the medical staff preliminarily evaluates and leaves enough room for the patient to move on the bed based on the distance from the dialysis machine to the patient's dialysis site, connects the arteriovenous dialysis catheter to the wire slot (17) of the box body (23), passes both ends of the dialysis catheter through the box body (23), and then closes the box body (23); Step 3: Using the magnetic catheter adjustment fixing box, adjust the dialysis catheter to an appropriate length that leaves enough room for the patient to move; Step 4: When the patient is off the hemodialysis machine, the cuff (25) is removed from the box body (23) and used for pressure bandaging and hemostasis of the patient's hemodialysis puncture point; when not in use, it is stored on the side of the box body (23) to avoid being lost; Step 5, after the hemodialysis is completed, the dialysis catheter is taken out from the dovetail catheter fixing clamp and the box body (23) and treated as medical waste; the dovetail catheter fixing clamp is sprayed with disinfectant or wiped with disinfectant wipes until it is dry, and then stored in the disinfected magnetic suction box body (23); after the patient's fistula is hemostatic, the compression cuff is also disinfected and stored on the side of the box body (23) for integrated storage by the patient for safekeeping.

Images