Waterproof protective sleeve applied to PICC (Peripherally Inserted Central Catheter)

Abstract

The utility model discloses a waterproof protective sleeve applied to a PICC (peripherally inserted central catheter), which belongs to the field of medical instruments and comprises a protective mechanism sleeved on an arm and elastic bands fixedly mounted at two ends of the protective mechanism. The protection mechanism comprises a skin-friendly layer which is fixedly installed between the two elastic bands and makes contact with the skin, a water absorption layer fixedly installed on the skin-friendly layer, a breathable layer fixedly installed on the water absorption layer and a hydrophobic layer fixedly installed on the breathable layer, the water absorption layer is arranged between the skin-friendly layer and the breathable layer, the breathable layer is arranged between the water absorption layer and the hydrophobic layer, and the hydrophobic layer is arranged between the water absorption layer and the hydrophobic layer. The protection mechanism further comprises a breathable net fixedly installed on the breathable layer and a drying piece which sequentially penetrates through the hydrophobic layer and the breathable net and makes contact with the water absorption layer. Through cooperative use of the devices, water drops are isolated by the hydrophobic layer when a patient takes a bath or uses the waterproof protective sleeve in other environments with water, and the probability that the affected part of the patient is infected due to contact with water is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a waterproof protective sleeve applied to a PICC catheter. Background Technique

[0002] PICC, that is, peripherally inserted central catheter, is to puncture through the vein in the peripheral arm using a catheter, and the catheter reaches directly to the large vein close to the heart, avoiding the direct contact between chemotherapy drugs and arm veins. Coupled with the very fast blood flow rate in the large vein, the chemotherapy drugs can be quickly diluted, preventing the drugs from stimulating the blood vessels. PICC catheterization can effectively protect the upper limb veins, reduce the occurrence of phlebitis, relieve the pain of patients, and improve the quality of life of patients. Therefore, it is often used for medium- and long-term intravenous therapy of more than five days or intravenous infusion of hypertonic and irritating drugs. It has the advantages of high catheterization success rate, safe operation, and long indwelling time, and can avoid the pain caused by multiple intravenous punctures to patients and the stimulation of drugs to the wounds of patients. At present, it has been widely used in clinical practice. According to the actual needs of patients, the PICC catheter can be indwelled in the body for a long time, and sometimes it may reach 6 months to 1 year.

[0003] In the prior art, in order to prevent the catheter and the connector from shifting under external force during this period, and even the PICC catheter from being pulled out, medical staff generally use stockings to fix it. However, when the patient takes a bath, it is easy for the liquid to penetrate the stockings and come into contact with the wound. When the wound encounters water, it is easy to cause wound infection and there is a risk of deterioration of the condition.

[0004] Therefore, the utility model provides a waterproof protective sleeve applied to a PICC catheter to solve the above problems. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] The utility model provides a waterproof protective sleeve applied to a PICC catheter, aiming to solve the problems raised in the background technique.

[0007] (2) Technical Solutions

[0008] To achieve the above purpose, the utility model provides the following technical solution: A waterproof protective sleeve applied to a PICC catheter, which includes a protective mechanism sleeved on the arm and elastic bands fixedly installed at both ends of the protective mechanism.

[0009] The protective mechanism includes a skin-friendly layer fixedly installed between the two elastic bands and in contact with the skin, a water-absorbing layer fixedly installed on the skin-friendly layer, a breathable layer fixedly installed on the water-absorbing layer, and a hydrophobic layer fixedly installed on the breathable layer. The water-absorbing layer is arranged between the skin-friendly layer and the breathable layer, and the breathable layer is arranged between the water-absorbing layer and the hydrophobic layer.

[0010] A winding film is fixedly connected to the outer wall of the hydrophobic layer, and a rubber band adapted to the winding film is sleeved on the outer wall of the elastic band.

[0011] As a preferred technical solution of the present application, the protection mechanism further includes a ventilation net fixedly installed on the ventilation layer, and a drying sheet sequentially penetrating through the hydrophobic layer and the ventilation net and contacting the water absorption layer, and the ventilation net penetrates through the skin-friendly layer and contacts the skin.

[0012] As a preferred technical solution of the present application, the protection mechanism further includes bumps fixedly installed on the hydrophobic layer, and a plurality of bumps are provided, and the plurality of bumps are evenly distributed on the hydrophobic layer.

[0013] As a preferred technical solution of the present application, the drying sheet is set to a convex platform shape, and the cross-sectional area of the drying sheet near the skin-friendly layer end is not greater than the cross-sectional area of the drying sheet far from the skin-friendly layer end.

[0014] As a preferred technical solution of the present application, the ventilation net is set to a T shape, and the ventilation net is closely attached to the skin-friendly layer.

[0015] (III) Beneficial effects

[0016] The utility model has a simple structure and is convenient to use. Through the arrangement of the skin-friendly layer, the water absorption layer, the ventilation layer and the hydrophobic layer, this multi-layer structure can effectively isolate water droplets, prevent water from penetrating into the wound, and at the same time ensure the internal air circulation, keep the skin dry, and reduce the discomfort of the patient. Description of the drawings

[0017] Figure 1 It is a schematic structural diagram of a waterproof protective sleeve applied to a PICC catheter;

[0018] Figure 2 It is a cross-sectional view of the protection mechanism in a waterproof protective sleeve applied to a PICC catheter;

[0019] Figure 3 It is a side view of the protection mechanism in a waterproof protective sleeve applied to a PICC catheter;

[0020] Figure 4 It is Figure 3 The enlarged schematic diagram at A in

[0021] Figure 5 It is a cross-sectional view of the winding film in a waterproof protective sleeve applied to a PICC catheter.

[0022] In the figure:

[0023] 1. Protection mechanism; 11. Skin-friendly layer; 12. Water absorption layer; 13. Ventilation layer; 14. Ventilation net; 15. Hydrophobic layer; 16. Bump; 17. Drying sheet; 18. Winding film; 19. Rubber band;

[0024] 2. Elastic band. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model provides a waterproof protective cover for PICC catheter, such as Figures 1-4 As shown, the waterproof protective cover comprises a protective mechanism 1 which is sleeved on the arm and elastic bands 2 which are fixedly mounted on both ends of the protective mechanism 1 .

[0027] The protective mechanism 1 includes a skin-friendly layer 11 fixedly installed between two elastic bands 2 and in contact with the skin, a water-absorbing layer 12 fixedly installed on the skin-friendly layer 11, a breathable layer 13 fixedly installed on the water-absorbing layer 12, and a hydrophobic layer 15 fixedly installed on the breathable layer 13. The water-absorbing layer 12 is arranged between the skin-friendly layer 11 and the breathable layer 13, and the breathable layer 13 is arranged between the water-absorbing layer 12 and the hydrophobic layer 15.

[0028] The outer wall of the hydrophobic layer 15 is fixedly connected with a winding film 18 , and the outer wall of the elastic band 2 is sleeved with a rubber band 19 matched with the winding film 18 .

[0029] When the PICC catheter is set on the patient's arm, the operator takes the waterproof protective sleeve and puts it on the patient's affected part, places the affected part at the center of the protective mechanism 1, and places the two elastic bands 2 at both ends of the affected part respectively, so that the skin-friendly layer 11 contacts the patient's skin, reducing the probability of the patient being allergic to the waterproof protective sleeve.

[0030] The rolling film 18 and the rubber band 19 are respectively arranged at the two ends of the hydrophobic layer 15. When the patient takes a bath or is placed in other water environments while using the waterproof protective cover, the patient moves the rolling film 18 with his hand to stretch and open the rolling film 18. After the rolling film 18 covers the hydrophobic layer 15, the rubber band 19 is pulled to fasten one end of the rolling film 18 to the elastic band 2 so that the water droplets are isolated by the rolling film 18. After use, the rubber band 19 is loosened, and the rolling film 18 shrinks according to its own elastic potential energy for next use.

[0031] In daily use, liquids such as sweat and water drops dripping from the patient's head come into contact with the hydrophobic layer 15, and the water drops are isolated by the hydrophobic layer 15, so that the water drops slide along the surface of the hydrophobic layer 15, reducing the probability of the patient's affected part contacting water, thereby reducing the probability of the patient's affected part being infected by the water drops.

[0032] Furthermore, in order to improve the comfort of the patient, the protection mechanism 1 further includes a ventilation net 14 fixedly installed on the ventilation layer 13, and a drying sheet 17 that sequentially penetrates through the hydrophobic layer 15 and the ventilation net 14 and contacts the water absorption layer 12. The ventilation net 14 penetrates through the skin-friendly layer 11 and contacts the skin.

[0033] A groove for placing the drying sheet 17 is formed on the hydrophobic layer 15. When the waterproof protective cover is in use, the sweat generated by the skin penetrates into the ventilation net 14, and then the water absorption layer 12 absorbs the sweat inside the ventilation net 14, keeping the patient's skin dry. Furthermore, the water adsorbed by the water absorption layer 12 is absorbed by the drying sheet 17. When the drying sheet 17 needs to be replaced after long-term use of the waterproof protective cover, the drying sheet 17 is taken out from the hydrophobic layer 15, and then a new drying sheet 17 is embedded into the groove on the hydrophobic layer 15 for use. At the same time, through the setting of the ventilation layer 13, air is allowed to circulate from the patient's skin, keeping the skin dry, reducing the discomfort caused by sweating and dampness, and improving the comfort of the patient.

[0034] Even further, in order to reduce the wear of the waterproof protective cover during daily use, as Figure 2 shown, the protection mechanism 1 further includes bumps 16 fixedly installed on the hydrophobic layer 15. There are multiple bumps 16, and the multiple bumps 16 are evenly arranged on the hydrophobic layer 15.

[0035] When the waterproof protective cover is rubbed, the bumps 16 on the hydrophobic layer 15 first contact the external object and undergo friction, thereby reducing the contact area between the hydrophobic layer 15 and the external object and increasing the service life of the hydrophobic layer 15.

[0036] Among them, in order to improve the efficiency of the drying sheet 17, as Figure 3 and Figure 4 shown, the drying sheet 17 is set in a frustum shape, and the cross-sectional area of the drying sheet 17 at the end close to the skin-friendly layer 11 is not greater than the cross-sectional area of the drying sheet 17 at the end far from the skin-friendly layer 11.

[0037] When there is water in the water absorption layer 12, the drying sheet 17 absorbs the water inside the water absorption layer 12. Through the frustum shape setting, the contact area between the drying sheet 17 and the water absorption layer 12 is increased, improving the drying efficiency, and at the same time making it convenient for the operator to replace the drying sheet 17.

[0038] It should be noted that in order to improve the installation stability of the ventilation net 14, as Figure 4 shown, the ventilation net 14 is set in a T shape, and the ventilation net 14 is closely attached to the skin-friendly layer 11.

[0039] Through the setting of the ventilation net 14, the contact area between the ventilation net 14 and the skin-friendly layer 11 is increased, so that the ventilation net 14 and the skin-friendly layer 11 are further closely engaged, improving the installation stability of the ventilation net 14.

[0040] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A waterproof protective cover for a PICC catheter, characterized in that: The waterproof protective sleeve comprises a protective mechanism (1) sleeved on the arm, and elastic bands (2) fixedly mounted on both ends of the protective mechanism (1); The protective mechanism (1) comprises a skin-friendly layer (11) fixedly mounted between the two elastic bands (2) and in contact with the skin, a water-absorbing layer (12) fixedly mounted on the skin-friendly layer (11), a breathable layer (13) fixedly mounted on the water-absorbing layer (12), and a hydrophobic layer (15) fixedly mounted on the breathable layer (13), wherein the water-absorbing layer (12) is arranged between the skin-friendly layer (11) and the breathable layer (13), and the breathable layer (13) is arranged between the water-absorbing layer (12) and the hydrophobic layer (15); The outer wall of the hydrophobic layer (15) is fixedly connected with a rolling film (18), and the outer wall of the elastic band (2) is sleeved with a rubber band (19) that is compatible with the rolling film (18).

2. The waterproof protective cover for PICC catheter according to claim 1, characterized in that: The protective mechanism (1) further comprises a breathable net (14) fixedly mounted on the breathable layer (13), and a drying sheet (17) which sequentially penetrates the hydrophobic layer (15) and the breathable net (14) and contacts the water-absorbing layer (12); the breathable net (14) penetrates the skin-friendly layer (11) and contacts the skin.

3. The waterproof protective cover for PICC catheter according to claim 2, characterized in that: The protective mechanism (1) further comprises a protrusion (16) fixedly mounted on the hydrophobic layer (15), wherein a plurality of the protrusions (16) are provided, and the plurality of the protrusions (16) are evenly arranged on the hydrophobic layer (15).

4. The waterproof protective cover for PICC catheter according to claim 2, characterized in that: The drying sheet (17) is configured as a boss type, and the cross-sectional area of ​​the end of the drying sheet (17) close to the skin-friendly layer (11) is not greater than the cross-sectional area of ​​the end of the drying sheet (17) away from the skin-friendly layer (11).

5. The waterproof protective cover for PICC catheter according to claim 2, characterized in that: The breathable net (14) is arranged in a T-shape, and the breathable net (14) is closely fitted to the skin-friendly layer (11).

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