Anti-soaking protective sleeve for Picc catheter

Abstract

The utility model discloses a Picc catheter anti-soaking protective sleeve which comprises an external protective sleeve, a wrist fixing assembly, an arm fixing assembly and an internal protective sleeve, one end of the protective sleeve is connected to the wrist fixing assembly, the other end of the external protective sleeve penetrates through the arm fixing assembly and is in threaded connection to the wrist fixing assembly, and the other end of the external protective sleeve is in threaded connection with the arm fixing assembly. The arm fixing assembly is arranged on the outer protective sleeve in a sliding mode, the inner protective sleeve is arranged in the outer protective sleeve in the length direction of the outer protective sleeve, and one end of the inner protective sleeve is bonded to the wrist fixing assembly. The external protective sleeve is tightened through mutual engagement of the rotating sleeve and the threaded sleeve, so that the impact force of water flow is absorbed by the external protective sleeve, and dislocation of the connector and the needle head caused by direct impact of the water flow on the PICC film is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical supplies nursing, in particular to a Picc catheter anti-wetting protection sleeve. Background Technique

[0002] PICC is to puncture through the peripheral arm vein and insert a catheter, and the catheter reaches the large artery near the heart, avoiding the direct contact between chemotherapy drugs and arm veins. Coupled with the very fast blood flow speed in the large vein, the chemotherapy drugs can be quickly diluted, preventing the drugs from irritating the blood vessels. The peripherally inserted central catheter has the advantages of avoiding repeated venous punctures, reducing the pain of patients, protecting blood vessels, and having safe use and long indwelling time, and is widely used in clinical applications.

[0003] Chinese Patent Publication No. CN207520434U discloses a PICC waterproof protection sleeve, which includes a cylindrical sleeve body for accommodating the arm at the catheterization site. The cylindrical sleeve body is a sleeve body made of waterproof material. An upper edge air ring for inflation is arranged at the upper edge of the cylindrical sleeve body. An upper edge inflation port is arranged on the upper edge air ring. A lower edge air ring for inflation is arranged at the lower edge of the cylindrical sleeve body. A lower edge inflation port is arranged on the lower edge air ring. Both the upper edge air ring and the lower edge air ring are air rings made of waterproof material.

[0004] However, when the waterproof sleeve is impacted by water, the impact force of the water will directly act on the venous catheter, resulting in the dislocation or even detachment of the needle and the catheter. And there is a cloverleaf adapter connected to the catheter. This adapter is in direct contact with the patient's skin and is fixed to the skin with adhesive tape. Long-term compression is likely to cause skin indentation and skin and mucous membrane damage. Content of the Utility Model

[0005] The problem to be solved by the utility model is to overcome the disadvantages in the above-mentioned prior art that when the waterproof sleeve is impacted by water, the impact force of the water will directly act on the venous catheter, resulting in the dislocation or even detachment of the needle and the catheter. And there is a cloverleaf adapter connected to the catheter. This adapter is in direct contact with the patient's skin and is fixed to the skin with adhesive tape. Long-term compression is likely to cause skin indentation and skin and mucous membrane damage.

[0006] A Picc catheter anti-wetting protection sleeve is proposed, which includes an external protection sleeve, a wrist fixing component, an arm fixing component and an internal protection sleeve. One end of the external protection sleeve is connected to the wrist fixing component, and the other end of the external protection sleeve passes through the arm fixing component and is threadedly connected to the wrist fixing component. The arm fixing component is slidably arranged on the external protection sleeve. The internal protection sleeve is arranged inside the external protection sleeve along the length direction of the external protection sleeve, and one end of the internal protection sleeve is bonded to the wrist fixing component.

[0007] In the technical solution of the utility model, after the top of the external protective sleeve is fixed on the patient's skin by the arm fixing component, the wrist fixing component can be fixed on the patient's wrist by the first airbag, and then the threaded sleeve is meshed with the rotating sleeve, and then the rotating sleeve is rotated. When the threaded sleeve moves downward under the action of the rotating sleeve, the external protective sleeve will be tightened. At this time, after the water flow hits the external protective sleeve, the impact force will be absorbed by the external protective sleeve, thereby avoiding the water flow from directly hitting the catheter connector and the needle, and the catheter connector will be placed in a placement bag, and the inner wall of the placement bag is bonded with a sponge, so the catheter connector will not directly contact the patient's skin, thereby not causing pressure on the patient's skin, so as to solve the problem mentioned in the technical background that when the waterproof sleeve is impacted by water, the impact force of the water will directly act on the intravenous catheter, causing the needle and catheter to be dislocated or even dislocated, and the catheter is connected to a clave connector, which is in direct contact with the patient's skin and fixed to the skin with tape. Long-term pressure can easily cause indentations on the skin, causing skin and mucous membrane damage.

[0008] Preferably, the wrist fixing assembly includes a rotating sleeve, a wrist fixing ring, a first airbag and a first water-absorbing gasket. The rotating sleeve cover is arranged on the outside of the wrist fixing ring and is rotatably connected to the wrist fixing ring, and the external waterproof cover is connected to the external waterproof cover through the rotating sleeve. The first airbag is transversely arranged in the middle position of the inner wall of the wrist fixing ring and is connected to the wrist fixing ring. The first water-absorbing gasket is located above the first airbag and is bonded to the inner wall of the wrist fixing ring. The end of the internal protective cover is bonded to the wrist fixing ring. After being inflated, the first airbag will begin to squeeze the patient's wrist and stick to the skin of the patient's wrist, so that moisture will not enter the interior of the internal protective cover from the patient's wrist.

[0009] Preferably, the end of the outer protective sleeve is connected to a threaded sleeve, which is threadedly connected to the inside of the rotating sleeve. During the rotation of the rotating sleeve, the threaded sleeve and the outer protective sleeve are pulled downward to tighten the outer protective sleeve, thereby preventing water from directly hitting the catheter connector and the needle.

[0010] Preferably, the arm fixing assembly includes an arm fixing ring, a second airbag and a second absorbent pad. The second airbag is laterally arranged in the middle position inside the arm fixing ring and is connected to the arm fixing ring. The second absorbent pad is located below the second airbag and is bonded to the inner wall of the arm fixing ring. The second airbag of the arm fixing assembly will squeeze the outer protective cover onto the skin of the patient's arm to prevent water vapor from entering the interior of the outer protective cover from the patient's arm.

[0011] For the optimization of the technical solution of the present utility model, a catheter groove is provided at the middle position of the inner protective sleeve, and a cover plate is provided at the position of the catheter groove. A placement bag and a fixing strap are provided on the cover plate. The catheter connector can be placed in the placement bag, and a sponge layer is adhered to the inner wall of the placement bag. Therefore, the catheter connector will not directly contact the patient's arm, thus avoiding pressing on the patient's arm.

[0012] For the optimization of the technical solution of the present utility model, the inner protective sleeve is sewn by a first silicone layer, a water-color-changing layer, a water-absorbing layer, and a second silicone layer. The water-absorbing layer is located inside the first silicone layer, the water-color-changing layer is arranged at the middle position between the first silicone layer and the water-absorbing layer, and the second silicone layer is located at the inner wall position of the water-absorbing layer. The airbag of the wrist fixing assembly will wrap around the patient's wrist after inflation, thus sealing the gap at the patient's wrist and preventing water vapor from entering the inside of the outer protective sleeve from the patient's wrist.

[0013] For the optimization of the technical solution of the present utility model, a groove is provided at the end of the second silicone layer, and a pull rope is arranged at the position of the groove of the second silicone layer inside the first silicone layer. A rope stop is provided at the end of the pull rope. After the air in the groove inside the second silicone layer is discharged by the pull rope, the second silicone layer can adsorb on the patient's skin by the air pressure difference, thus sealing the gap between the inner protective sleeve and the patient's skin to prevent water flow from entering the inside of the inner protective sleeve.

[0014] The beneficial effects of the present utility model compared with the prior art are as follows:

[0015] After the middle part of the outer protective sleeve is fixed to the arm by using the arm fixing assembly in the present utility model, by the meshing of the rotating sleeve and the threaded sleeve, the outer protective sleeve is tightened, so as to use the outer protective sleeve to absorb the impact force of the water flow, prevent the water flow from directly hitting the PICC membrane and causing the connector and the needle to be misaligned. At the same time, the outer protective sleeve adopts a double-layer waterproof structure to improve the waterproof effect. When in use, when part of the water seeps in from the arm fixing assembly, it will be blocked by the inner protective sleeve, making the inside of the inner protective sleeve in a dry state. And when taking a bath, the catheter connector is placed inside the placement bag on the inner protective sleeve to avoid the situation that the connector is in direct contact with the patient's skin under long-term compressive contact, resulting in skin indentation. Brief Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of a Picc catheter anti-wetting protection sleeve;

[0017] Figure 2 It is a schematic structural diagram of a Picc catheter anti-wetting protection sleeve (the rotating sleeve is a whole, with a piece removed to show the internal structure.);

[0018] Figure 3 It isFigure 2 Schematic enlarged view of point A;

[0019] Figure 4 Schematic diagram of the structural cooperation between the inner protective sleeve and the wrist fixing component of a Picc catheter anti-wetting protective sleeve (the rotating sleeve is a whole, with a piece removed to show the internal structure).;

[0020] Figure 5 Schematic diagram of the inner protective sleeve structure of a Picc catheter anti-wetting protective sleeve;

[0021] Figure 6 Schematic diagram of the distribution of the water-sensitive color-changing layer of the inner protective sleeve of a Picc catheter anti-wetting protective sleeve;

[0022] Figure 7 is Figure 5 Schematic enlarged view of point B;

[0023] Figure 8 Schematic diagram of the wrist fixing component structure of a Picc catheter anti-wetting protective sleeve;

[0024] Figure 9 Schematic diagram of the wrist fixing component structure of a Picc catheter anti-wetting protective sleeve;

[0025] Figure 10 Schematic diagram of the arm fixing component structure of a Picc catheter anti-wetting protective sleeve;

[0026] Figure 11 Schematic diagram of the arm fixing component structure of a Picc catheter anti-wetting protective sleeve;

[0027] Figure 12 Schematic diagram of the working state of a Picc catheter anti-wetting protective sleeve;

[0028] In the figure: 1 - outer protective sleeve, 11 - threaded sleeve, 2 - wrist fixing component, 21 - rotating sleeve, 22 - wrist fixing ring, 23 - first airbag, 24 - first water-absorbing gasket, 3 - arm fixing component, 31 - arm fixing ring, 32 - second airbag, 33 - second water-absorbing gasket, 4 - inner protective sleeve, 41 - first silicone layer, 42 - water-sensitive color-changing layer, 43 - water-absorbing layer, 44 - second silicone layer, 45 - groove, 46 - pull rope, 47 - rope stop, 5 - cover plate, 51 - placement bag, 52 - fixing belt. Detailed implementation mode

[0029] Next, the technical solutions in the embodiments of the present utility model will be described in detail in conjunction with the attached Figures 1-12 in the embodiments of the present utility model.

[0030] Such as Figures 1-2As shown in the figure, a moisture-proof protection sleeve for a Picc catheter includes an external protection sleeve 1, a wrist fixing component 2, an arm fixing component 3, and an internal protection sleeve 4. One end of the external protection sleeve 1 is bonded to the end face of the wrist fixing component 2. The arm fixing component 3 is located above the wrist fixing component 2. The other end of the external protection sleeve 1 passes through the center of the arm fixing ring 31 and then turns outwards, and then is threadedly connected to the wrist fixing component 2. The arm fixing component 3 is slidably arranged on the external protection sleeve 1.

[0031] As Figures 1-2 shown in the figure, after the external protection sleeve 1 is fixed on the patient's arm through the wrist fixing component 2 and the arm fixing component 3, the external protection sleeve 1 inside the arm fixing component 3 will be fixed on the patient's arm by the second airbag 32 of the arm fixing component 3. Therefore, the distance between the protection sleeves at the inner wall positions of the arm fixing component 3 and the wrist fixing component 2 will not change at this time, and the end of the protection sleeve outside the arm fixing component 3 will be in a taut state when connected to the wrist fixing component 2.

[0032] As Figures 1-2 shown in the figure, therefore, the impact force of the water flow directly hitting the external protection sleeve 1 during bathing will be absorbed by the taut external protection sleeve 1, thus avoiding the impact force of the water flow directly hitting the catheter joint and the needle. The internal protection sleeve 4 is arranged inside the external protection sleeve 1 along the length direction of the external protection sleeve 1, and one end of the internal protection sleeve 4 is bonded to the wrist fixing ring 22. The external protection sleeve 1 is made of medical silicone. When the patient takes a bath, the patient's arm will be along the axis direction of the internal fixing sleeve, and medical silicone itself has elasticity and ductility.

[0033] As Figures 1-2 shown in the figure, the center position of the internal fixing sleeve passes through until the patient's wrist passes through the wrist fixing component 2 and then is exposed outside the external fixing sleeve. Since the internal protection sleeve 4 is made of medical silicone, the internal protection sleeve 4 will stick to the skin of the patient's arm at this time. One end of the internal protection sleeve 4 close to the arm fixing ring 31 is provided with an inclination angle. Therefore, even if water flow enters the external protection sleeve 1, it will not stay at the place where the internal protection sleeve 4 contacts the patient's arm.

[0034] As Figures 3-4 shown in the figure, one end of the external protection sleeve 1 is bonded to the wrist fixing ring 22 of the wrist fixing component 2. A threaded sleeve 11 is bonded to the other end of the external protection sleeve 1 after passing through the arm fixing ring 31 and turning outwards. A rotating sleeve 21 is sleeved outside the wrist fixing ring 22, and the rotating sleeve 21 meshes with the threaded sleeve 11. The rotating sleeve 21 is rotatably connected to the wrist fixing ring 22.

[0035] As Figures 3-4As shown, after the arm fixing component 3 fixes the middle part of the outer protective sleeve 1 on the patient's arm through the airbag, when the threaded sleeve 11 is inserted into the inside of the rotating sleeve 21 and then the rotating sleeve 21 is rotated, the threaded sleeve 11 will pull the outer protective sleeve 1 downward during the downward movement. At this time, the outer protective sleeve 1 will be in a taut state, so as to prevent the water flow from directly hitting the catheter connector and the needle.

[0036] As Figures 5-7 shown, one end of the inner protective sleeve 4 is bonded to the wrist fixing component 2. A catheter groove is provided at the middle position of the inner protective sleeve 4 along the length direction of the inner protective sleeve 4. When the inner protective sleeve 4 is moved upward from the patient's wrist to the patient's arm and sleeved on the patient's arm, until the catheter connector and the needle on the patient's arm move to the position of the catheter groove, the inner protective sleeve 4 can stop moving upward. A cover plate 5 is provided at the position of the catheter groove on the inner protective sleeve 4.

[0037] As Figures 5-7 shown, a placement bag 51 is provided on the cover plate 5. The placement bag 51 is sewn on the cover plate 5. After the catheter groove moves to the position of the catheter connector and the needle, the catheter connector can be passed through the catheter groove and then placed inside the placement bag 51. Then the cover plate 5 can be attached to the inner fixing sleeve through the magic tape. A sponge pad is bonded to the outer wall of the placement bag 51. Therefore, even if the cover plate 5 is attached to the inner fixing sleeve through the magic tape, the sponge pad will absorb the pressure brought by the catheter connector, so the catheter connector will not leave indentations on the patient's arm.

[0038] As Figures 5-7 shown, a fixing strap 52 is also provided on the cover plate 5. One end of the fixing strap 52 is sewn on the inner fixing sleeve, and the other end of the fixing strap 52 is bonded to the cover plate 5 through the magic tape. Therefore, after the catheter connector is placed inside the placement bag 51, the position of the catheter connector in the placement bag 51 can be fixed through the fixing strap 52 to prevent the catheter connector from falling out of the placement bag 51.

[0039] As Figures 5-7 shown, the inner protective sleeve 4 is sewn by a first silicone layer 41, a water-sensitive color-changing layer 42, a water-absorbing layer 43 and a second silicone layer 44. The water-absorbing layer 43 is located inside the first silicone layer 41. The water-sensitive color-changing layer 42 is arranged between the first silicone layer 41 and the water-absorbing layer 43. The second silicone layer 44 is arranged on the inner wall of the water-absorbing layer 43 and is in direct contact with the patient's skin. The water-sensitive color-changing layer 42, the water-absorbing layer 43 and the second silicone layer 44 are sewn together, and the first silicone layer 41 is bonded to the water-sensitive color-changing layer 42. After the water vapor enters the inside of the outer protective sleeve, it will slide on the surface of the first silicone layer 41.

[0040] As Figures 5-7As shown, it will not accumulate at the contact position between the inner protective sleeve 4 and the patient's skin, and the end face of the inner protective sleeve 4 is provided with an inclination angle. Therefore, after the water vapor flows to the end of the inner protective sleeve 4, it will also flow downward from the surface of the first silicone layer 41 through the inclination angle at the end of the inner protective sleeve 4, and the water vapor can be absorbed by the water absorption layer 43 after flowing to the end of the inner protective sleeve 4 to prevent it from continuing to flow into the interior of the inner protective sleeve 4. The water absorption layer 43 can be made of a high water absorption resin layer or a sponge layer.

[0041] As Figures 5-7 shown, and after the water absorption layer 43 absorbs the water vapor, it will transfer the water vapor to the water-sensitive color-changing layer 42. The water-sensitive color-changing layer 42 includes an elastic cloth layer and a thin layer of water-sensitive color-changing material coated on the outside of the elastic cloth. Therefore, the water-sensitive color-changing layer 42 itself has elasticity and ductility and can well wrap the patient's arm. After the water-sensitive color-changing layer 42 comes into contact with the water vapor, it can change color by using the chemical properties of the water-sensitive color-changing material thin layer of its own material. The outer protective sleeve 1 and the first silicone layer 41 are both made of transparent medical silicone.

[0042] As Figures 5-7 shown, therefore, after the water-sensitive color-changing layer 42 changes color, it will immediately remind the patient, and both ends of the water-sensitive color-changing layer 42 can be set into different protection sections (such as Figure 6 the A, B, and C sections in

[0043] As Figures 5-7 shown) centered on the cover plate 5 according to its length direction. The water-sensitive color-changing layer 42 in different protection sections reacts with different colors after encountering water. Therefore, the patient can directly observe the position of the water vapor according to the colors of different water-sensitive color-changing layers 42. A groove 45 is formed on the inner wall of the second silicone layer 44 at the end of the inner protective sleeve 4, and a drawstring 46 is arranged inside the first silicone layer 41 at the position of the groove 45 of the second silicone layer 44.

[0044] As Figures 8-12As shown, the wrist fixing assembly 2 includes a rotating sleeve 21, a wrist fixing ring 22, a first airbag 23 and a first water-absorbing gasket 24. The rotating sleeve 21 covers the outside of the wrist fixing ring 22 and is rotatably connected to the wrist fixing ring 22. Threads are provided on the inner wall of the rotating sleeve 21, and the rotating sleeve 21 can be threadedly connected to the threaded sleeve 11 through the threads. The first airbag 23 is horizontally arranged at the middle position on the inner wall of the wrist fixing ring and is adhered to the wrist fixing ring 22. The nozzle of the first airbag 23 passes through the wrist fixing ring 22 and is arranged outside the wrist fixing ring 22.

[0045] As Figures 8-12 shown, the inside of the first airbag 23 can be directly inflated through the nozzle. After the first airbag 23 expands and deforms, it can wrap around the patient's arm or wrist to prevent water vapor from entering the inside of the inner protective sleeve 4 through the patient's wrist. The first water-absorbing gasket 24 is located above the first airbag 23 and is adhered to the inner wall of the wrist fixing ring 22. The first water-absorbing gasket 24 can be made of superabsorbent resin material or sponge layer. Therefore, when water vapor flows in from the position between the first airbag 23 and the patient's skin, it can be directly absorbed by the first water-absorbing gasket 24.

[0046] As Figures 8-12 shown, the arm fixing assembly 3 includes an arm fixing ring 31, a second airbag 32 and a second water-absorbing gasket 33. The second airbag 32 is horizontally arranged at the middle position inside the arm fixing ring 31 and is adhered to the arm fixing ring 31. The nozzle of the second airbag 32 passes through the wrist fixing ring 22 and is arranged outside the arm fixing ring 31. Therefore, the inside of the second airbag 32 can be directly inflated through the nozzle. After the second airbag 32 expands and deforms, it will start to squeeze the outer protective sleeve 1, making the inner wall of the outer protective sleeve 1 closely adhere to the skin of the patient's arm.

[0047] As Figures 8-12 shown, the second water-absorbing gasket 33 is located below the second airbag 32 and is adhered to the inner wall of the arm fixing ring 31. A through hole is provided in the outer protective sleeve 1 at the position of the arm fixing ring 31. Therefore, even when water vapor enters the inside of the outer protective sleeve 1 from the end of the outer protective sleeve 1 at the position of the second airbag 32, it can be directly absorbed by the second water-absorbing gasket 33 to prevent the water vapor from continuing to flow towards the inner protective sleeve 4. The second water-absorbing gasket 33 can also be made of superabsorbent resin material or sponge layer.

[0048] The movement process of this embodiment: When taking a bath, first wrap the internal protective sleeve 4 around the patient's arm from the wrist upwards until the catheter connector moves to the position of the cover plate 5 and then stop. After placing the catheter connector inside the placement bag 51 and fixing it with the fixing strap 52, the cover plate 5 can be re-bonded to the internal protective sleeve 4 using Velcro. Then, pull out the drawstring 46 until the air inside the groove 45 of the second silicone layer 44 is completely exhausted, and then use the drawstring stopper 47 to fix the drawstring 46. Subsequently, the arm fixing ring 31 can be moved upwards so that it can completely wrap the internal protective sleeve 4.

[0049] Stop moving upwards until the arm fixing ring 31 moves to the opening position of the external protective sleeve 1. Then, inflate the second airbag 32 to make it fully expand and wrap around the patient's arm. After the second airbag 32 fixes the external protective sleeve 1 on the patient's arm, pull down the threaded sleeve 11 to make it engage with the rotating sleeve 21. Then, inflate the first airbag 23 to make it expand. After it is fixed on the patient's arm, rotate the rotating sleeve 21 until the external protective sleeve 1 is completely tightened, and then stop rotating the rotating sleeve 21. Then, the patient can take a shower.

[0050] The above embodiments are only used to illustrate the technical idea of the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution according to the technical idea proposed by the present invention fall within the protection scope of the present invention.

Claims

1. A Picc catheter anti-wetting protective cover, characterized in that: The invention comprises an external protective sleeve (1), a wrist fixing component (2), an arm fixing component (3) and an internal protective sleeve (4), wherein one end of the external protective sleeve (1) is connected to the wrist fixing component (2), and the other end of the external protective sleeve (1) passes through the arm fixing component (3) and is threadedly connected to the wrist fixing component (2), the arm fixing component (3) is slidably arranged on the external protective sleeve (1), the internal protective sleeve is arranged inside the external protective sleeve (1) along the length direction of the external protective sleeve (1), and one end of the internal protective sleeve (4) is bonded to the wrist fixing component (2).

2. The Picc catheter anti-wetting protective cover according to claim 1, characterized in that: The wrist fixing assembly (2) comprises a rotating sleeve (21), a wrist fixing ring (22), a first airbag (23) and a first water-absorbing pad (24); the rotating sleeve (21) is disposed on the outside of the wrist fixing ring (22) and is rotatably connected to the wrist fixing ring (22); the external waterproof cover is connected to the external waterproof cover via the rotating sleeve (21); the first airbag (23) is transversely disposed at the middle section of the inner wall of the wrist fixing ring (22) and is connected to the wrist fixing ring (22); the first water-absorbing pad (24) is located above the first airbag (23) and is bonded to the inner wall of the wrist fixing ring (22); and the end of the internal protective cover (4) is bonded to the wrist fixing ring (22).

3. The Picc catheter anti-wetting protective cover according to claim 2, characterized in that: The end of the outer protective sleeve (1) is connected to a threaded sleeve (11), and the threaded sleeve (11) is threadedly connected to the inside of the rotating sleeve (21).

4. The Picc catheter anti-wetting protective cover according to claim 1, characterized in that: The arm fixing assembly (3) comprises an arm fixing ring (31), a second air bag (32) and a second water-absorbing pad (33); the second air bag (32) is arranged transversely in the middle of the arm fixing ring (31) and is connected to the arm fixing ring (31); the second water-absorbing pad (33) is located below the second air bag (32) and is bonded to the inner wall of the arm fixing ring (31).

5. The Picc catheter anti-wetting protective cover according to claim 2, characterized in that: A catheter groove is provided at the middle portion of the inner protective sleeve (4), and a cover plate (5) is provided at the position of the catheter groove. A placement bag (51) and a fixing belt (52) are provided on the cover plate (5).

6. The Picc catheter anti-wetting protective cover according to claim 5, characterized in that: The internal protective cover (4) is formed by sewing a first silicone layer (41), a water-discoloring layer (42), a water-absorbing layer (43) and a second silicone layer (44); the water-absorbing layer (43) is located inside the first silicone layer (41); the water-discoloring layer (42) is arranged in the middle of the first silicone layer (41) and the water-absorbing layer (43); and the second silicone layer (44) is located on the inner wall of the water-absorbing layer (43).

7. The Picc catheter anti-wetting protective cover according to claim 6, characterized in that: A groove (45) is provided at the end of the second silicone layer (44), a drawstring (46) is provided inside the first silicone layer (41) at the position of the groove (45) of the second silicone layer (44), and a rope stop buckle (47) is provided at the end of the drawstring (46).

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