A hemodialysis catheter securement device

Abstract

The utility model relates to hemodialysis technical field especially a kind of hemodialysis catheter fixing device, including fixed base, guide pipe and dialysis catheter main body, multiple guide pipes are fixedly installed on the outer wall of fixed base, the dialysis catheter main body is movably penetrated in the inside of guide pipe, the inside of fixed base is equipped with hemodialysis catheter coiling fixed structure, the top of fixed base is equipped with catheter fixed limiting structure. The hemodialysis catheter fixing device, first ladder column and second ladder column are staggered by a distance arrangement, so that dialysis catheter main body is inserted into the through hole inside, around the outer wall of first ladder column and second ladder column in turn spiral winding, fixed in serpentine around ladder column, utilize large-area serpentine winding to fix dialysis catheter, the bending degree of dialysis catheter is within one hundred and eighty degrees, the bending degree is reduced, the bending force of stress received is also reduced, improve the fixing effect of hemodialysis catheter fixing device.

Description

Technical Field

[0001] This utility model relates to the field of hemodialysis technology, specifically a hemodialysis catheter fixation device. Background Technology

[0002] Hemodialysis is a form of renal replacement therapy, mainly used to treat patients with uremia. To perform this treatment, a vascular access is required. For example, a dialysis catheter can be inserted into a blood vessel to drain the blood. Hemodialysis requires two catheters: one catheter is used to draw the patient's blood into the hemodialysis machine, and the other catheter is used to pass the purified blood back into the patient's body.

[0003] For example, the authorization announcement number "CN219646499U" is titled "A Hemodialysis Catheter Fixing Device," which features an automatically winding rotating column to wind the hemodialysis catheter, avoiding the problem of the catheter being pulled due to its excessive length. However, existing hemodialysis catheter fixing devices use two vertical tubes to facilitate the winding and fixing of the catheter. Because hemodialysis catheters are designed to be slightly thicker than conventional tubes to reduce the risk of breakage and leakage, this reduces the flexibility of the dialysis catheter. The bending radius of the vertically wound dialysis catheter is no less than 360 degrees, which causes a relatively high rate of bending and breakage on the catheter wall. Therefore, after prolonged use, the dialysis catheter will become bent and uneven, which not only reduces blood delivery efficiency but also easily leads to serious problems such as creases and cracks, resulting in an unsatisfactory fixing effect of the hemodialysis catheter fixing device. Utility Model Content

[0004] This invention addresses the problem of unsatisfactory fixation effect of existing hemodialysis catheter fixation devices by proposing a new hemodialysis catheter fixation device.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A hemodialysis catheter fixation device is designed, comprising a fixation base, guide tubes, and a dialysis catheter body. Multiple guide tubes are fixedly installed on the outer wall of the fixation base. The dialysis catheter body is movably inserted through the interior of the guide tubes. The interior of the fixation base is provided with a hemodialysis catheter coiling and fixing structure, and the top of the fixation base is provided with a catheter fixing and limiting structure.

[0007] Preferably, the hemodialysis catheter coiling and fixing structure includes a first step column and a second step column, a plurality of first step columns are fixedly connected to the top of the fixing base, a plurality of second step columns are fixedly connected to the top of the fixing base, a protective layer is fixedly connected to the top surface of the fixing base, and through holes are fixedly opened on the inner side of a plurality of guide tubes.

[0008] Preferably, the outer wall of the first stepped column is movably connected to the main body of the dialysis catheter, and the outer walls of the plurality of second stepped columns are movably connected to the other side of the main body of the dialysis catheter. The plurality of first stepped columns and second stepped columns are arranged in parallel and staggered manner.

[0009] Preferably, the conduit fixing and limiting structure includes a top plate and protrusions. The top plate is movably connected above the fixing seat. The inner wall of the top plate is fixedly provided with multiple splicing holes. Arc-shaped grooves are fixedly carved on both sides of the inner wall of the multiple splicing holes. The multiple protrusions are fixedly connected to the top of the first step column and the second step column. Elastic sheets are fixedly connected to the outer wall of the multiple protrusions. Two actuating blocks are fixedly connected to the outer wall of the top plate.

[0010] Preferably, the inner sides of the plurality of splicing holes are movably connected to the protrusions, and the outer walls of the plurality of elastic sheets are movably connected to the inner sides of the arc-shaped grooves.

[0011] Preferably, two connecting nails are fixedly connected to the top outer wall of the fixing base, and a hanging rope is fixedly connected above the two connecting nails.

[0012] The hemodialysis catheter fixing device proposed in this utility model has the following advantages: the first and second step columns are staggered and spaced apart by a certain distance. After the main body of the dialysis catheter is inserted into the through hole, it coils and winds around the outer walls of the first and second step columns in a serpentine shape for fixing. By using a large area of ​​serpentine winding to fix the dialysis catheter, the bending degree of the dialysis catheter is within 180 degrees. The reduced bending degree also reduces the bending force, thereby improving the fixing effect of the hemodialysis catheter fixing device. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 for Figure 1 A frontal sectional view;

[0015] Figure 3 for Figure 1 A side sectional view;

[0016] Figure 4 for Figure 2 An enlarged schematic diagram of part A in the middle;

[0017] Figure 5 for Figure 3 Enlarged schematic diagram of part B;

[0018] Figure 6 for Figure 3 An enlarged schematic diagram of section C.

[0019] In the diagram: 1. Fixing base, 2. Guide tube, 3. Dialysis catheter body, 4. Hemodialysis catheter coiling and fixing structure, 41. First step column, 42. Second step body, 43. Protective layer, 44. Through hole, 5. Catheter fixing and limiting structure, 51. Top plate, 52. Assembly hole, 53. Arc groove, 54. Protrusion, 55. Elastic sheet, 56. Actuating block, 61. Connecting pin, 62. Hanging rope. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] Example 1:

[0022] Please see Figure 1-6 In this embodiment, a hemodialysis catheter fixing device includes a fixing base 1, a guide tube 2, and a dialysis catheter body 3. Multiple guide tubes 2 are fixedly installed on the outer wall of the fixing base 1. The guide tubes 2 are used to guide the dialysis catheter body 3 into the fixing base 1 for fixing and placement. The dialysis catheter body 3 is movably inserted through the inside of the guide tubes 2. The dialysis catheter body 3 is made of thermoplastic polyurethane (TPU) material and has skin-friendly and infection-proof properties. The fixing base 1 is provided with a hemodialysis catheter coiling fixing structure 4 inside, and a catheter fixing limiting structure 5 is provided above the fixing base 1.

[0023] The hemodialysis catheter coiling and fixing structure 4 includes a first step column 41 and a second step column 42. Multiple first step columns 41 are fixedly connected to the top of the fixing base 1. The first step columns 41 and the second step columns 42 are of the same height. Multiple first step columns 41 and multiple second step columns 42 are arranged side by side. The first step columns 41 and the second step columns 42 are staggered and spaced apart by a certain distance. In this way, after the dialysis catheter body 3 is inserted into the through hole 44, it coils and winds around the outer walls of the first step columns 41 and the second step columns 42 in sequence, forming a serpentine shape to fix it around the step columns 42.

[0024] Then, the dialysis catheter body 3 is fixed between each first step post 41 and second step post 42 through tension and friction. Then, the other end of the dialysis catheter body 3 extends out of the corresponding through hole 44 of the guide tube 2. Multiple second step posts 42 are fixedly connected to the top of the fixing base 1. A protective layer 43 is fixedly connected to the top surface of the fixing base 1. The protective layer 43 is made of soft rubber material that is not easy to scratch the dialysis catheter body 3. In this way, the protective layer 43 can closely fit the dialysis catheter that is wrapped and fixed to provide protection. Through holes 44 are fixedly opened on the inner side of multiple guide tubes 2.

[0025] The first step column 41 and the second step column 42 are of the same height. Multiple first step columns 41 and multiple second step columns 42 are arranged side by side. The first step columns 41 and the second step columns 42 are arranged alternately at a distance. After the dialysis catheter body 3 is inserted into the through hole 44, it coils and winds around the outer walls of the first step columns 41 and the second step columns 42 in a serpentine shape to fix it. Then, the dialysis catheter body 3 is fixed by tension and friction between each first step column 41 and the second step column 42.

[0026] Then, the other end of the dialysis catheter body 3 extends out of the corresponding through hole 44 of the guide tube 2. The protective layer 43 is made of soft rubber material that is not easy to scratch the dialysis catheter body 3. In this way, the protective layer 43 can closely fit the dialysis catheter that is wrapped and fixed to provide protection. The dialysis catheter is fixed by using a large area of ​​serpentine winding. The bending degree of the dialysis catheter is within 180 degrees. The bending degree is reduced, and the bending force of the stress is also reduced, which improves the fixation effect of the hemodialysis catheter fixation device.

[0027] The outer wall of the first step column 41 is movably connected to the dialysis catheter body 3, and the outer walls of the multiple second step columns 42 are movably connected to the other side of the dialysis catheter body 3. The multiple first step columns 41 and second step columns 42 are arranged in parallel and staggered manner.

[0028] The catheter fixing and limiting structure 5 includes a top plate 51 and protrusions 54. The top plate 51 is movably connected above the fixing seat 1. The inner wall of the top plate 51 is fixedly provided with multiple splicing holes 52. The size and specifications of the top plate 51 are consistent with the fixing seat 1 below. After the dialysis catheter body 3 is coiled inside the fixing seat 1, the top plate 51 can be pressed down onto the top of the fixing seat 1. The inner walls of the multiple splicing holes 52 are fixedly carved with arc-shaped grooves 53 on both sides. The multiple protrusions 54 are fixedly connected to the top of the first step column 41 and the second step column 42. The splicing holes 52 carved on the inner side of the top plate 51 can be sequentially engaged and spliced ​​with the protrusions 54.

[0029] Multiple protrusions 54 are fixedly connected to the outer wall of an elastic sheet 55. The elastic sheet 55 is made of rubber arc-shaped block with a certain deformation. After the protrusion 54 is inserted into the splicing hole 52, the elastic sheet 55 will pop out and fill the inner wall of the arc groove 53. Then the elastic block 55 will lock the top plate 51 for fixation. The top plate 51 covers the top of the fixing seat 1 and can limit the dialysis catheter body 3 that is coiled and fixed. Two actuating blocks 56 are fixedly connected to the outer wall of the top plate 51. When the top plate 51 needs to be removed, simply press the actuating blocks 56 on both sides with both hands and then pull the top plate 51 upward to remove it.

[0030] The inner sides of multiple splicing holes 52 are movably connected to the protrusions 54, and the outer walls of multiple elastic plates 55 are movably connected to the inner sides of the arc-shaped grooves 53.

[0031] Working principle:

[0032] Hemodialysis catheter fixation devices are used near hemodialysis medical devices. Because hemodialysis tubing needs to connect to the patient's body to perform dialysis, excessively long dialysis tubing is not conducive to the patient's dialysis process and can easily cause stretching and discomfort and pain. Therefore, dialysis catheter fixation devices are needed to store and fix excessively long dialysis tubing.

[0033] The serpentine coiled fixation structure of the hemodialysis catheter fixation device:

[0034] Multiple first-step columns 41 and multiple second-step columns 42 are arranged side by side. The first-step columns 41 and the second-step columns 42 are staggered and spaced apart. After the dialysis catheter body 3 is inserted into the through hole 44, it coils and winds around the outer walls of the first-step columns 41 and the second-step columns 42 in a serpentine shape to fix it. Then, the tension and friction between each first-step column 41 and the second-step column 42 fix the dialysis catheter body 3. Then, the other end of the dialysis catheter body 3 protrudes into the through hole 44 of the corresponding guide tube 2, thus fixing the dialysis catheter.

[0035] The protective layer 43 is made of a soft rubber material that is not easily scratched by the dialysis catheter body 3, so that the protective layer 43 can closely adhere to the dialysis catheter that is wrapped and fixed to provide protection.

[0036] Post-fixation limiting structure of the hemodialysis catheter fixation device:

[0037] The size and specifications of the top plate 51 are consistent with those of the lower fixing seat 1. After the dialysis catheter body 3 is coiled inside the fixing seat 1, the top plate 51 can be placed downwards on the top of the fixing seat 1. The splicing hole 52 chiseled on the inner side of the top plate 51 can be sequentially engaged with the protrusion 54. The elastic sheet 55 is made of rubber arc block with a certain deformation. After the protrusion 54 is inserted into the splicing hole 52, the elastic sheet 55 will pop out and fill the inner wall of the arc groove 53. Then the elastic block 55 will lock the top plate 51 for fixation. The top plate 51 covering the fixing seat 1 can limit the position of the coiled and fixed dialysis catheter body 3.

[0038] When it is necessary to remove the top plate 51, simply press down on the two sides of the lever 56 with both hands, and then pull the top plate 51 upwards to remove it.

[0039] Example 2:

[0040] Please see Figure 1-6In this embodiment, a hemodialysis catheter fixing device includes two connecting nails 61 fixedly connected to the top outer wall of the fixing base 1. The connecting nails 61 are made of high-strength stainless steel nails and can be firmly driven into the interior of the fixing base 1. In this way, the two connecting nails 61, together with the inner hanging rope 62, are installed above the fixing base 1. The hanging rope 62 can facilitate the entire dialysis catheter fixing device to be hung on the wall or hook for placement and storage. The hanging rope 62 is fixedly connected above the two connecting nails 61.

[0041] Working principle:

[0042] The connecting nail 61 is made of high-strength stainless steel and can be firmly driven into the inside of the fixing base 1. In this way, the two connecting nails 61, together with the inner hanging rope 62, are installed above the fixing base 1. The hanging rope 62 can make it easy to hang the entire dialysis catheter fixing device on the wall or hook for placement and storage.

[0043] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A hemodialysis catheter fixing device, comprising a fixing base (1), guide tubes (2), and a dialysis catheter body (3), wherein a plurality of the guide tubes (2) are fixedly installed on the outer wall of the fixing base (1), characterized in that: The main body (3) of the dialysis catheter is movably inserted inside the guide tube (2). The fixed seat (1) is provided with a hemodialysis catheter coiling and fixing structure (4). The fixed seat (1) is provided with a catheter fixing and limiting structure (5) above it.

2. The hemodialysis catheter fixation device according to claim 1, characterized in that: The hemodialysis catheter coiling and fixing structure (4) includes a first step column (41) and a second step column (42). Multiple first step columns (41) are fixedly connected to the top of the fixing base (1), and multiple second step columns (42) are fixedly connected to the top of the fixing base (1). A protective layer (43) is fixedly connected to the top surface of the fixing base (1), and multiple guide tubes (2) have through holes (44) fixedly opened on their inner sides.

3. The hemodialysis catheter fixation device according to claim 2, characterized in that: The outer wall of the first step column (41) is movably connected to the dialysis catheter body (3), and the outer walls of the multiple second step columns (42) are movably connected to the other side of the dialysis catheter body (3). The multiple first step columns (41) and second step columns (42) are arranged in parallel and staggered arrangement.

4. The hemodialysis catheter fixation device according to claim 1, characterized in that: The catheter fixing and limiting structure (5) includes a top plate (51) and protrusions (54). The top plate (51) is movably connected above the fixing seat (1). The inner wall of the top plate (51) is fixedly provided with multiple splicing holes (52). The inner walls of the multiple splicing holes (52) are fixedly carved with arc-shaped grooves (53) on both sides. The multiple protrusions (54) are fixedly connected to the top of the first step column (41) and the second step column (42). The outer walls of the multiple protrusions (54) are fixedly connected with elastic sheets (55). The outer wall of the top plate (51) is fixedly connected with two actuating blocks (56).

5. The hemodialysis catheter fixation device according to claim 4, characterized in that: The inner sides of the plurality of splicing holes (52) are movably connected to the protrusions (54), and the outer walls of the plurality of elastic sheets (55) are movably connected to the inner sides of the arc grooves (53).

6. The hemodialysis catheter fixation device according to claim 1, characterized in that: Two connecting nails (61) are fixedly connected to the top outer wall of the fixed base (1), and a hanging rope (62) is fixedly connected above the two connecting nails (61).

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