Kidney disease dialysis tube in-vitro fixing device

By designing an external fixing device for kidney disease dialysis tubes including the main fixing belt, ventilation cover, auxiliary fixing belt and side fastening adjustment frame, the problems of large disassembly and maintenance burden, limited movement, difficulty in skin cleaning, and easy to pull out of the catheter in the prior art are solved, and higher motion comfort and catheter fixation effect are achieved.

CN120168818AInactive Publication Date: 2025-06-20GUIZHOU PROVINCIAL PEOPLES HOSPITAL
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Patent Information

Application Number
CN202510335107.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2025-06-20
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During dialysis treatment for patients with kidney disease, the existing bandage fixation method leads to a large burden of disassembly and maintenance, limited movement, difficulty in cleaning the skin, easy to pull out the catheter, and uncomfortable use.

Method used

An external fixing device for kidney disease dialysis tube is designed, including a main fixing belt, ventilation cover, auxiliary fixing belt and side fastening adjustment frame. The fixing and adjustment are achieved through sliding connection and spring support, and the inner centrifugal fan keeps the skin dry.

Benefits of technology

It reduces the number of skin maintenance around the dialysis tube body, improves movement comfort, enhances catheter fixation effect, and reduces the risk of catheter pulling out.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a kidney disease dialysis tube in-vitro fixing device, and relates to the technical field of dialysis tube auxiliary fixing, the kidney disease dialysis tube in-vitro fixing device comprises a main fixing band, two sides of the main fixing band are respectively provided with a side fastening adjusting frame, one opposite side of the main fixing band is provided with a ventilation hood body, an auxiliary fixing band is arranged below the main fixing band, a head connecting buckle is fixed at the head end of the main fixing band, and a tail connecting buckle is fixed at the tail end of the auxiliary fixing band. The tail of the head connecting buckle is connected with a head connecting inserting block in a sliding and inserting mode, a limiting wedge-shaped clamping block slides in the middle of the head connecting inserting block, the tail end of the head connecting inserting block is fixedly connected with a tail fixing connecting belt, a tail connecting sliding frame is fixed to the tail end of the tail fixing connecting belt, and stretching of a buffer spring adapts to relaxation and contraction changes when leg muscles walk. According to the device, the thighs are firmly connected, meanwhile, certain redundant changes are achieved, the comfort of people during walking is improved, and the problems that due to the fact that bandages are tightly wound around the thighs, muscles of the thighs are limited by the bandages, and walking and sitting of people are greatly limited are solved.
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Description

Technical Field

[0001] The invention relates to the technical field of auxiliary fixation of a dialysis tube body, and in particular to an extracorporeal fixation device for a dialysis tube for kidney disease. Background Art

[0002] Kidney disease patients need to undergo regular dialysis treatments, which are performed via a central venous catheter inserted into the internal jugular vein or the femoral vein in the leg to connect to the venous blood vessels. Short-term central venous catheters can be replaced on a monthly basis, while long-term central venous catheters can be replaced on an annual basis, reducing the need for skin punctures for dialysis treatments.

[0003] The dialysis catheter is wrapped and bound outside the body with a bandage, etc. The bandage and the catheter need to be kept dry and clean. After sweating, the bandage needs to be removed and replaced, and the catheter needs to be wiped and cleaned. The disassembly and maintenance burden is heavy. In addition, when people are moving, in order to prevent the catheter from being pulled out by external force, the bandage will be tightly wrapped around the thigh, causing the thigh muscles to be restricted by the bandage, and the person's walking and sitting are greatly restricted. The sense of restraint during use is strong and uncomfortable. Summary of the invention

[0004] In view of this, the present invention provides an extracorporeal fixing device for dialysis tubes for kidney disease, so as to solve the problem that after the patient sweats, the bandage needs to be disassembled and replaced, and the insertion tube needs to be wiped and cleaned. The disassembly and maintenance burden is heavy, the range of activities of the personnel is limited, and it is not conducive to keeping the skin clean after sweating during long-distance activities. When the patient is active, in order to prevent the catheter from being pulled out due to external traction, the bandage will be tightly wrapped around the thigh, resulting in the thigh muscles being restricted by the bandage, the thigh muscle force is restricted, the walking and sitting range of the person will also be greatly restricted, the sense of restraint during use is relatively strong, and the user experience is relatively uncomfortable.

[0005] The present invention provides an extracorporeal fixing device for a dialysis tube for kidney disease, which specifically comprises: a main fixing belt, side fastening adjustment frames are arranged on both sides of the main fixing belt, a ventilation cover is arranged on the opposite side of the main fixing belt, a secondary fixing belt is arranged below the main fixing belt, a first connecting buckle is fixed to the head end of the main fixing belt, a first connecting plug block is slidably connected to the tail of the first connecting buckle, a limited wedge-shaped clamping block is slidably connected to the middle of the first connecting plug block, the tail end of the first connecting plug block is fixedly connected to the tail fixed connecting belt, a tail connecting slide is fixed to the tail end of the tail fixed connecting belt, and an internal supporting spring is fixed to the middle of the first connecting plug block.

[0006] Further, the first end of the inner support spring is fixedly connected to the limit wedge-shaped clamping block. The front part of the limit wedge-shaped clamping block is of an inclined surface structure. When the first connecting plug and the first connecting buckle are slidably inserted, the front inclined surface of the limit wedge-shaped clamping block moves inward in contact with and being compressed by the first connecting buckle. The inner support spring supports the limit wedge-shaped clamping block to protrude outside the first connecting plug. The inner support spring supports the sliding insertion of the limit wedge-shaped clamping block and the middle hole position of the first connecting buckle. The sliding connection between the first connecting buckle and the first connecting plug realizes the unfolding of the main fixing belt and the tail fixing connecting belt. The main fixing belt and the tail fixing connecting belt surround the thigh through the gap where the first connecting buckle and the first connecting plug are separated.

[0007] Further, a middle winding shaft rotates circumferentially in the middle of the side fastening adjustment frame. Limiting insertion strips are slidably arranged on both sides of the middle winding shaft. The first end of the fastening connecting rope is fixed to the middle winding shaft. The middle of the fastening connecting rope is U-shaped bent along the tail connecting runner. Limiting blocks are annularly arranged in the middle of the side fastening adjustment frame. Connecting sliders are fixed to both the top and the bottom of the side fastening adjustment frame.

[0008] Further, a buffer spring is fixed between the limiting insertion strips on both sides of the middle winding shaft. The buffer spring supports the limiting insertion strips to be slidably inserted into the intervals between the limiting blocks. After the limiting insertion strips are slidably inserted between the limiting blocks, the middle winding shaft cannot rotate circumferentially, locking the position of the middle winding shaft and locking the length of the fastening connecting rope. A buffer spring is fixed inside the side fastening adjustment frame. The tail end of the fastening connecting rope is fixedly connected to the side fastening adjustment frame.

[0009] Further, the ventilation hood body is of an arc-shaped structure. Inner ventilation holes are arranged in an array on the inner side of the ventilation hood body. An inner centrifugal fan is fixed inside the ventilation hood body. A motor is arranged at the center of the inner centrifugal fan. The inner centrifugal fan is connected to a mobile power supply device through a USB interface. The inner centrifugal fan drives air to flow through the inner ventilation holes and contact the skin, keeping the skin opening dry.

[0010] Further, the connecting slider is slidably connected to the upper and lower chute of the tail connecting slide frame. The tail end of the buffer spring inside the side fastening adjustment frame is fixedly connected to the tail connecting slide frame. Tail connecting runners are rotatably arranged on both sides and in the middle of the ventilation hood body. The stretching of the buffer spring supports and adapts to the relaxation and contraction changes of the leg muscles when walking.

[0011] Further, the first connecting buckle at the tail end of the auxiliary fixing belt is slidably inserted and connected to the first connecting plug at the first end of the tail connecting belt. A side fixing belt is arranged on the opposite side of the auxiliary fixing belt. Magic tape fixing belts are attached to both outer sides of the side fixing belt. The auxiliary fixing belt, the tail connecting belt, and the side fixing belt are made of flexible fabric materials. The auxiliary fixing belt and the side fixing belt wrap the thigh.

[0012] Further, the tail connection wheels at both ends of the side fixing belt are rotatably connected to the side fastening adjustment frames at the head ends of the auxiliary fixing belts and the side fastening adjustment frames at the tail ends of the tail connection belts respectively through fastening connection ropes. By sliding the two limit inserts towards the middle, the limit inserts are separated from the limit blocks, and the angle limitation of the middle winding shaft is released. The middle winding shaft can rotate freely. The middle winding shaft rotates, and the fastening connection rope is wound around the middle of the middle winding shaft. When the middle winding shaft rotates, the fastening connection rope is retracted and shortened or released and extended. The distance of the fastening connection rope is shortened, and the fastening connection rope pulls the auxiliary fixing belt and the side fixing belt closer or farther away.

[0013] Further, the side fastening adjustment frames in the middle of the side fixing belt and the auxiliary fixing belt are connected to the tail connection wheels in the middle of the ventilation hood body and the main fixing belt through fastening connection ropes. The distance between the auxiliary fixing belt and the main fixing belt is also adjusted through the fastening connection rope, and the distance between the side fixing belt and the ventilation hood body is also adjusted through the fastening connection rope. The auxiliary fixing belt surrounds and fixes the leg muscles below the main fixing belt, providing double fixation and enhancing the fixing effect of the main fixing belt.

[0014] The beneficial effects are as follows:

[0015] 1. The main fixing belt and the ventilation hood body surround the root of the thigh. The ventilation hood body covers and fixes the dialysis tube body and the skin opening. The inner centrifugal fan drives the air flow to keep the skin opening dry, and can accelerate the evaporation of sweat even after sweating, reducing the maintenance frequency and burden of the skin around the dialysis tube body for the user.

[0016] 2. By rotating the middle winding shaft to wind the fastening connection rope, the fastening connection rope pulls the main fixing belt and the ventilation hood body closer or farther away, adjusting the fastening tightness of the thigh. It can be adjusted after wearing, eliminating the need to disassemble and adjust the existing bandage or elastic band, which may result in insufficient fastening force during adjustment and easy disturbance of the position of the dialysis tube body, making it less safe to use.

[0017] 3. The auxiliary fixing belt fixes the leg below the main fixing belt. The auxiliary fixing belt reduces the movement amplitude of the leg muscles, enhances the fixing effect of the main fixing belt, and reduces the movement amplitude of the main fixing belt when the user walks.

[0018] 4. A buffer spring is arranged between the side fastening adjustment frame and the tail connection sliding frame. The buffer spring supports the thigh in the inflated state when the side fastening adjustment frame and the tail connection sliding frame are tightly surrounded. The stretching of the buffer spring also adapts to the relaxation and contraction changes of the leg muscles when walking, ensuring firm connection to the thigh while having a certain redundant change, improving the comfort of the user when walking. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0020] The accompanying drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0021] In the accompanying drawings:

[0022] Figure 1 is a schematic structural diagram of the overall extracorporeal fixation device for a kidney dialysis tube according to an embodiment of the present invention.

[0023] Figure 2 is a schematic structural diagram of the separated state of the first connection buckle and the first connection plug of the extracorporeal fixation device for a kidney dialysis tube according to an embodiment of the present invention.

[0024] Figure 3 is a schematic structural diagram of the cross-section of the first connection plug of the extracorporeal fixation device for a kidney dialysis tube according to an embodiment of the present invention.

[0025] Figure 4 is of the extracorporeal fixation device for a kidney dialysis tube according to an embodiment of the present invention Figure 3 schematic enlarged structural diagram at position A.

[0026] Figure 5 is a schematic cross-sectional structural diagram of the side fastening adjustment frame of the extracorporeal fixation device for a kidney dialysis tube according to an embodiment of the present invention.

[0027] Figure 6 is a schematic structural diagram of the side fastening adjustment frame of the extracorporeal fixation device for a kidney dialysis tube according to an embodiment of the present invention.

[0028] Figure 7 is a schematic structural diagram of the split structure of the right vertical beam and the door body of the extracorporeal fixation device for a kidney dialysis tube according to an embodiment of the present invention.

[0029] Figure 8 is a schematic cross-sectional structural diagram of the ventilation hood body of the extracorporeal fixation device for a kidney dialysis tube according to an embodiment of the present invention.

[0030] Figure 9 is a schematic structural diagram of the auxiliary fixing belt of the extracorporeal fixation device for a kidney dialysis tube according to an embodiment of the present invention.

[0031] Figure 10 is a schematic structural diagram of the split state of the extracorporeal fixation device for a kidney dialysis tube according to an embodiment of the present invention.

[0032] List of reference numerals

[0033] 1. Main fixing belt; 101. First connecting buckle; 102. First connecting plug; 103. Limiting wedge-shaped clamping block; 104. Tail fixing connection belt; 105. Tail connecting carriage; 106. Inner support spring; 2. Side fastening and adjusting frame; 201. Middle winding shaft; 202. Limiting insertion strip; 203. Limiting block; 204. Connecting slider; 205. Buffer spring; 206. Fastening connection rope; 207. Tail connecting runner; 3. Ventilation hood; 301. Inner ventilation hole; 302. Inner centrifugal fan; 4. Auxiliary fixing belt; 401. Tail connecting belt; 402. Side fixing belt; 403. Magic tape fixing belt. Detailed implementation manner

[0034] In order to make the purpose, scheme and advantages of the technical scheme of the present invention clearer, the technical scheme of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the specific embodiments of the present invention.

[0035] Embodiment 1: Please refer to Figures 1 to 10 as shown:

[0036] The present invention provides an extracorporeal fixing device for a kidney dialysis tube, including a main fixing belt 1. A first connecting buckle 101 is fixed at the head end of the main fixing belt 1. A first connecting plug 102 is slidably inserted at the tail of the first connecting buckle 101. A limiting wedge-shaped clamping block 103 slides in the middle of the first connecting plug 102. The tail end of the first connecting plug 102 is fixedly connected to a tail fixing connection belt 104. A tail connecting carriage 105 is fixed at the tail end of the tail fixing connection belt 104. An inner support spring 106 is fixed in the middle of the first connecting plug 102. Side fastening and adjusting frames 2 are arranged on both sides of the main fixing belt 1. A middle winding shaft 201 rotates circumferentially in the middle of the side fastening and adjusting frame 2. Limiting insertion strips 202 slide on both sides of the middle winding shaft 201. The head end of the middle winding shaft 201 is fixedly connected to a fastening connection rope 206. The middle of the fastening connection rope 206 is U-shaped bent along the tail connecting runner 207. The fastening connection rope 206 can also be U-shaped bent by sliding through the semicircular hole in the middle of the tail connecting runner 207. Limiting blocks 203 are annularly arranged in the middle of the side fastening and adjusting frame 2. Connecting sliders 204 are fixed at the top and bottom of the side fastening and adjusting frame 2. A buffer spring 205 is fixed between the limiting insertion strips 202 on both sides of the middle winding shaft 201. The buffer spring 205 supports the limiting insertion strip 202 to slide and insert into the interval of the limiting block 203. After the limiting insertion strip 202 slides and inserts between the limiting blocks 203, the middle winding shaft 201 cannot rotate circumferentially, locking the position of the middle winding shaft 201 and locking the length of the fastening connection rope 206. A buffer spring 205 is fixed inside the side fastening and adjusting frame 2. The tail end of the fastening connection rope 206 is fixedly connected to the side fastening and adjusting frame 2;

[0037] The main fixing belt 1 is provided with a ventilation hood 3 on one side facing each other. A secondary fixing belt 4 is provided below the main fixing belt 1. The first connecting buckle 101 at the end of the secondary fixing belt 4 and the first connecting plug 102 at the head end of the tail connecting belt 401 are slidably inserted and connected. A side fixing belt 402 is provided on one side facing each other of the secondary fixing belt 4. Magic tape fixing belts 403 are attached to both outer sides of the side fixing belt 402. The secondary fixing belt 4, the tail connecting belt 401, and the side fixing belt 402 are made of flexible fabric material. The secondary fixing belt 4 and the side fixing belt 402 wrap around the thighs. The tail connecting rollers 207 rotatably provided at both ends of the side fixing belt 402 are respectively connected to the side tightening adjustment frame 2 at the head end of the secondary fixing belt 4 and the side tightening adjustment frame 2 at the tail end of the tail connecting belt 401 through the tightening connecting rope 206. By sliding the two limit inserts 202 towards the middle, the limit inserts 202 are separated from the limit blocks 203, and the angle limit of the middle winding shaft 201 is released. The middle winding shaft 201 can rotate freely. The middle winding shaft 201 rotates, and the tightening connecting rope 206 is wound around the middle of the middle winding shaft 201. When the middle winding shaft 201 rotates, the tightening connecting rope 206 is retracted and shortened or released and extended. The distance of the tightening connecting rope 206 is shortened, and the tightening connecting rope 206 pulls the secondary fixing belt 4 and the side fixing belt 402 closer or farther away to adjust the tightening degree on the thighs, and the tightness can be adjusted after wearing.

[0038] Among them, the head end of the inner support spring 106 is fixedly connected to the limit wedge-shaped block 103. The front part of the limit wedge-shaped block 103 is a bevel structure. When the first connecting plug 102 and the first connecting buckle 101 are slidably inserted, the front bevel of the limit wedge-shaped block 103 is contacted by the first connecting buckle 101 and is compressed and moved inward. The inner support spring 106 supports the limit wedge-shaped block 103 to protrude outside the first connecting plug 102. The inner support spring 106 supports the limit wedge-shaped block 103 and the middle hole of the first connecting buckle 101 for sliding insertion. The sliding connection of the first connecting buckle 101 and the first connecting plug 102 realizes the unfolding of the main fixing belt 1 and the tail fixing connecting belt 104. The main fixing belt 1 and the tail fixing connecting belt 104 are used to surround the thighs in a circular shape through the gap where the first connecting buckle 101 and the first connecting plug 102 are separated, which is more convenient for wearing.

[0039] Among them, the ventilation hood 3 is of an arc structure. Inner ventilation holes 301 are arranged in an array on the inner side of the ventilation hood 3. An inner centrifugal fan 302 is fixed inside the ventilation hood 3. A motor is arranged at the center of the inner centrifugal fan 302. The inner centrifugal fan 302 is connected to a mobile power device through a USB interface. The inner centrifugal fan 302 drives the air to flow through the inner ventilation holes 301 and contact the skin, keeping the skin at the opening dry. After sweating, it can also accelerate the evaporation of sweat, reduce the manual wiping of sweat by personnel, and reduce the maintenance frequency of the skin around the dialysis tube by personnel.

[0040] Among them, the connecting slider 204 is slidably connected to the upper and lower chute of the tail connecting carriage 105. The tail end of the buffer spring 205 inside the side fastening adjustment frame 2 is fixedly connected to the tail connecting carriage 105. Tail connecting wheels 207 are rotatably provided on both sides and the middle of the ventilation hood body 3. The stretching support of the buffer spring 205 adapts to the relaxation and contraction changes of the leg muscles during walking, ensuring a firm connection to the thigh while also having an activity redundancy to adapt to the expansion of the thigh, thus improving the comfort of personnel use.

[0041] Among them, the side fastening adjustment frame 2 fixedly provided in the middle of the side fixing belt 402 and the auxiliary fixing belt 4 is connected to the tail connecting wheel 207 rotatably provided in the middle of the ventilation hood body 3 and the main fixing belt 1 through the fastening connecting rope 206. The distance between the auxiliary fixing belt 4 and the main fixing belt 1 is also adjusted through the fastening connecting rope 206. The distance between the side fixing belt 402 and the ventilation hood body 3 is also adjusted through the fastening connecting rope 206. The auxiliary fixing belt 4 surrounds and fixes the leg muscles below the main fixing belt 1, providing double fixation to enhance the fixing effect of the main fixing belt 1, strengthening the limitation of the muscle amplitude during operations such as deep squatting by personnel, reducing the movement amplitude of the leg muscles, enhancing the reminder effect, and avoiding the situation of personnel forgetting or neglecting.

[0042] In the second embodiment, a magnetic block is provided inside the first connecting buckle 101, and a magnetic block is provided at the head end of the first connecting plug 102. The magnetic blocks at the head ends of the first connecting buckle 101 and the first connecting plug 102 are attractively arranged with opposite magnetic poles. The magnetic blocks of the first connecting buckle 101 and the first connecting plug 102 accelerate the speed of sliding connection, and the magnetic blocks assist the sliding insertion of the first connecting buckle 101 and the first connecting plug 102, making it more convenient for personnel to use, reducing the auxiliary force of personnel for the sliding insertion of the first connecting buckle 101 and the first connecting plug 102, achieving the purpose of more labor-saving connection, and facilitating single-handed operation.

[0043] In the third embodiment, a cover plate is slidably provided at the ventilation hole of the inner centrifugal fan 302 on the outer side of the ventilation hood body 3, which can cover and block when the inner centrifugal fan 302 is not in use, reducing the air exchange between the dialysis tube body, the skin opening and the outside, enhancing the sealing effect of the skin opening, adjusting the size of the air flow between the dialysis tube body and the skin opening by the size of the coverage area of the ventilation hole, adjusting the wind force, and adjusting the comfort according to individuals.

[0044] Specific usage method and function of this embodiment: Press the limit wedge-shaped block 103, and the limit wedge-shaped block 103 moves to the inside of the first connection buckle 101. The limit wedge-shaped block 103 no longer blocks the first connection buckle 101, and the first connection buckle 101 and the first connection plug 102 slide and separate. The main fixing belt 1 and the ventilation hood 3 are unfolded into a straight line. The main fixing belt 1 and the ventilation hood 3 are wound around the root of the thigh. The auxiliary fixing belt 4 and the tail connection belt 401 are also separated and released by sliding through the first connection buckle 101 and the first connection plug 102. Both the main fixing belt 1 and the ventilation hood 3 are made of flexible materials and fit the outside of the thigh. The first connection buckle 101 and the first connection plug 102 slide and insert. The inner support spring 106 supports the limit wedge-shaped block 103 to protrude and engage with the middle hole position of the first connection buckle 101. The first connection buckle 101 and the first connection plug 102 are locked and cannot be separated. The main fixing belt 1 and the ventilation hood 3 form a ring and are wound around the outside of the thigh. The ventilation hood 3 covers and fixes the dialysis tube body and the skin opening. The inner centrifugal fan 302 is started to generate wind. The inner centrifugal fan 302 drives the air to flow through the inner ventilation holes 301 and contact the skin, keeping the skin opening dry. Even after sweating, it can accelerate the evaporation of sweat, reduce the frequency and burden of skin maintenance around the dialysis tube body for personnel, reduce the situation of personnel wiping sweat, and avoid the uncomfortable situation of existing similar gauze bandages being wet after sweating;

[0045] By sliding the two limit insertion strips 202 towards the middle, the limit insertion strips 202 and the limit block 203 are separated, and the angle limit of the middle winding shaft 201 is released. The middle winding shaft 201 can rotate freely. The middle winding shaft 201 rotates, and the middle winding shaft 201 winds the fastening connection rope 206 in the middle. The middle winding shaft 201 rotates to retract or extend the fastening connection rope 206. The distance of the fastening connection rope 206 is shortened, and the fastening connection rope 206 pulls the main fixing belt 1 and the ventilation hood 3 closer or farther away. The auxiliary fixing belt 4 and the side fixing belt 402 are operated in the same way to move closer or farther away, adjusting the fastening tightness of the thigh. It can adjust the tightness after wearing, eliminating the need to disassemble and adjust existing bandages or elastic bands, resulting in the lack of fastening force when adjusting the bandage or elastic band, being unable to maintain the position fixation of the dialysis tube body, being prone to disturbing the position of the dialysis tube body during adjustment, and the bandage pulling the dialysis tube to cause position movement, making the use less safe;

[0046] The secondary fixing belt 4 and the main fixing belt 1 are also adjusted in distance by fastening the connecting rope 206, and the side fixing belt 402 and the ventilation cover body 3 are also adjusted in distance by fastening the connecting rope 206. The secondary fixing belt 4 surrounds and fixes the leg muscles below the main fixing belt 1, and double fixation enhances the fixing effect of the main fixing belt 1, and enhances the restriction of the muscle amplitude of the personnel in large-scale squatting and other operations. The secondary fixing belt 4 reduces the movement amplitude of the leg muscles, improves the reminder effect, avoids the situation that the personnel forgets or neglects, and reduces the movement amplitude of the main fixing belt 1 when the personnel walks; the secondary fixing belt 4 presses the tail section of the dialysis tube body, and the tail joint of the dialysis tube body is pressed and fixed by the Velcro fixing belt 403. The Velcro fixing belt 403 is fixed and adjusted in position by the Velcro and the secondary fixing belt 4, ensuring that the dialysis tube body moves with the human body, and avoiding the shaking of the tail joint of the dialysis tube body;

[0047] A buffer spring 205 is arranged between the side fastening adjustment frame 2 and the tail connecting slide 105, and the fastening connecting rope 206 is used to fasten the thigh in the relaxed state and the force expanded state. The buffer spring 205 supports the side fastening adjustment frame 2 and the tail connecting slide 105 to fasten and surround the thigh in the force expanded state. When the thigh is relaxed, the buffer spring 205 is stretched to support the side fastening adjustment frame 2 and the tail connecting slide 105 to move, and the side fastening adjustment frame 2 slides along the slide groove of the tail connecting slide 105 through the connecting slider 204. The buffer spring 205 supports the side fastening adjustment frame 2 and the tail connecting rotating wheel 207 to move away from each other, and the fastening connecting rope 206 remains in a taut state. The stretched support of the buffer spring 205 adapts to the relaxation and contraction changes of the leg muscles when walking, ensures that the connection to the thigh is firm while also having a certain redundant change, thereby improving the comfort of people when walking.

Claims

1. An extracorporeal fixation device for a dialysis tube for kidney disease, comprising: A main fixing belt (1), characterized in that side tightening adjustment frames (2) are arranged on both sides of the main fixing belt (1), a ventilation hood (3) is arranged on the opposite side of the main fixing belt (1), a secondary fixing belt (4) is arranged below the main fixing belt (1), a first connecting buckle (101) is fixed at the head end of the main fixing belt (1), a first connecting block (102) is slidably connected at the tail of the first connecting buckle (101), a sliding limited wedge-shaped clamping block (103) is arranged in the middle of the first connecting block (102), the tail end of the first connecting block (102) is fixedly connected to the tail fixed connecting belt (104), a tail connecting slide (105) is fixed at the tail end of the tail fixed connecting belt (104), and an inner supporting spring (106) is fixed in the middle of the first connecting block (102).

2. The in vitro fixing device for kidney disease dialysis tube according to claim 1, characterized in that: The front end of the inner support spring (106) is fixedly connected to the limiting wedge-shaped block (103); the inner support spring (106) supports the limiting wedge-shaped block (103) to protrude to the outside of the first connecting plug block (102); the inner support spring (106) supports the limiting wedge-shaped block (103) to slide into the middle hole of the first connecting buckle (101).

3. The in vitro fixing device for kidney disease dialysis tube according to claim 1, characterized in that: A central winding shaft (201) is rotatably provided in the middle of the side fastening adjustment frame (2), and limiting inserts (202) are slidably provided on both sides of the central winding shaft (201). The central winding shaft (201) and the head end of the fastening connection rope (206) are fixed, and the central portion of the fastening connection rope (206) is U-shapedly bent along the tail connection rotating wheel (207). A circular array limiting block (203) is provided in the middle of the side fastening adjustment frame (2), and connecting sliders (204) are fixed at the top and bottom of the side fastening adjustment frame (2).

4. The in vitro fixing device for kidney disease dialysis tube according to claim 3, characterized in that: A buffer spring (205) is fixed between the limiting inserts (202) on both sides of the middle winding shaft (201), and the buffer spring (205) supports the limiting inserts (202) to slide in the interval of the limiting blocks (203). A buffer spring (205) is fixed inside the side fastening adjustment frame (2), and the tail end of the fastening connection rope (206) is fixedly connected to the side fastening adjustment frame (2).

5. The in vitro fixing device for kidney disease dialysis tube according to claim 1, characterized in that: The inner side of the ventilation hood (3) is provided with an array of internal ventilation holes (301), and an internal centrifugal fan (302) is fixed inside the ventilation hood (3).

6. The in vitro fixing device for kidney disease dialysis tube according to claim 4, characterized in that: The connecting slide block (204) is slidably connected to the upper and lower sliding grooves of the tail connecting slide frame (105), the tail end of the buffer spring (205) inside the side fastening adjustment frame (2) is fixedly connected to the tail connecting slide frame (105), and the two sides and the middle of the ventilation cover body (3) are both rotatably provided with tail connecting wheels (207).

7. The in vitro fixing device for kidney disease dialysis tube according to claim 4, characterized in that: The first connecting buckle (101) at the rear end of the secondary fixing belt (4) and the first connecting plug block (102) at the front end of the rear connecting belt (401) are slidably connected, and a side fixing belt (402) is arranged on the opposite side of the secondary fixing belt (4), and Velcro fixing belts (403) are attached to both sides of the outside of the side fixing belt (402).

8. The in vitro fixing device for kidney disease dialysis tube according to claim 7, characterized in that: The tail connection wheels (207) rotating at both ends of the side fixing belt (402) are respectively connected to the side fastening adjustment frame (2) at the head end of the auxiliary fixing belt (4) and the side fastening adjustment frame (2) at the tail end of the tail connection belt (401) through the fastening connection rope (206).

9. The in vitro fixing device for kidney disease dialysis tube according to claim 8, characterized in that: The side fixing belt (402) and the side fastening adjustment frame (2) in the middle of the auxiliary fixing belt (4) are connected to the ventilation hood body (3) and the tail connecting wheel (207) in the middle of the main fixing belt (1) through a fastening connecting rope (206).