Waterproof protective cover for hemodialysis catheter with tunnel and dacron cover

Abstract

This utility model relates to the technical field of tunneled polyester-sheathed catheters, and discloses a special waterproof protective cover for hemodialysis tunneled polyester-sheathed catheters. It includes a cover body with a catheter storage sleeve connected to its outer side. The first end of the catheter storage sleeve has a storage opening communicating with the catheter storage cavity. The bottom surface of the cover body has an annular skin-friendly adhesive area and a central non-adhesive area. The central non-adhesive area has an inwardly recessed internal sealing cavity that communicates with the storage opening. The external catheter is stored in the catheter storage cavity of the catheter storage sleeve through the storage opening. The internal sealing cavity of the cover body seals the insertion port. The cover body is then attached to the patient's skin through the annular skin-friendly adhesive area, and the catheter storage sleeve is fixed to the patient's skin, providing waterproofing. Because this design is a sealed design, it addresses the needs of patients during daily showering and swimming, protecting the insertion port and catheter. This design is washable and reusable.

Description

Technical Field

[0001] This utility model relates to the technical field of tunneled catheters with polyester sheaths, and more specifically, to a special waterproof protective cover for hemodialysis tunneled catheters with polyester sheaths. Background Technology

[0002] Hemodialysis is one of the renal replacement therapies for patients with acute and chronic renal failure. For patients with poor limb vascular conditions and poor cardiac function who cannot establish their own arteriovenous fistula, a long-term central venous catheter (TCC) is required. Because this catheter is in place for a long time, it causes great inconvenience to patients when bathing or swimming.

[0003] The current common method is to cover and paste the catheter and dressing with a large sheet of transparent dressing. However, disposable transparent dressings increase the economic burden on patients. Furthermore, the appearance of this transparent dressing also prevents patients from swimming. In order to solve the problems of daily showering and swimming for patients, a special waterproof protective cover for hemodialysis tubes with polyester sheaths has been designed and manufactured. Utility Model Content

[0004] The purpose of this invention is to provide a special waterproof protective cover for hemodialysis tubes with tunnels and polyester sheaths, aiming to solve the problems of daily showering and swimming for patients in the existing technology.

[0005] This utility model is implemented as follows: a waterproof protective cover for a hemodialysis tube with a tunnel and polyester sheath includes a cover body, a tube storage sleeve connected to the outer side of the cover body, a tube storage cavity for storing the tube in the tube storage sleeve, a storage opening communicating with the tube storage cavity at the first end of the tube storage sleeve, and an adhesive end face for attaching to the skin on the tube storage sleeve; an annular skin-friendly adhesive area and a central non-adhesive area are provided on the bottom end face of the cover body, and the central non-adhesive area has an inwardly recessed internal sealing cavity that communicates with the storage opening.

[0006] Furthermore, the thickness of the cover is designed to gradually decrease from the inside out, and the annular skin-friendly adhesive area is arranged circumferentially around the outer side of the central adhesive-free area.

[0007] Furthermore, a skin-friendly water-resistant strip and a waterproof adhesive strip are provided on the outer side of the annular skin-friendly adhesive area. The skin-friendly water-resistant strip is arranged around the outer circumference of the annular skin-friendly adhesive area, and the waterproof adhesive strip is arranged around the outer circumference of the skin-friendly water-resistant strip.

[0008] Furthermore, the waterproof adhesive strip has a structure similar to the edge of swimming goggles, and the bottom surface of the waterproof adhesive strip is coated with a hydrogel layer.

[0009] Furthermore, the bottom end of the conduit storage sleeve is closed, the storage opening is located on the bottom end surface of the cover, and a telescopic sealing ring is provided on the storage opening, the sealing ring being arranged around the circumference of the storage opening.

[0010] Furthermore, an elastically deformable rubber ring is provided on the outside of the catheter storage sleeve, and a circular skin-friendly adhesive patch is connected to both ends of the rubber ring, the circular skin-friendly adhesive patch forming a 90° angle with the catheter storage sleeve.

[0011] Furthermore, the cover consists of a waterproof layer, a breathable layer, and an antibacterial layer from the outside in.

[0012] Furthermore, radial drainage grooves are provided on the surface of the waterproof layer.

[0013] Furthermore, the antibacterial layer is a removable silicone pad with a chlorhexidine coating on its surface.

[0014] Furthermore, an elastic strap is provided on the outer side of the cover, and the end of the elastic strap is provided with a medical hypoallergenic Velcro.

[0015] Compared with existing technologies ， This utility model provides a waterproof protective cover for hemodialysis catheters with tunnels and polyester sheaths. The external catheter is stored in the catheter storage cavity of the cover through a storage port. The internal sealing cavity of the cover seals and wraps the insertion port. The cover is then attached to the patient's skin via a ring-shaped skin-friendly adhesive area, and finally, the catheter storage cover is fixed to the patient's skin, providing waterproofing. Because this design is airtight, it addresses the needs of patients during daily showering and swimming, protecting the insertion port and catheter. This design is washable and reusable. Attached Figure Description

[0016] Figure 1 This is a rear sectional view of the waterproof protective cover for the hemodialysis tube tunnel with polyester sheath provided by this utility model.

[0017] Figure 2 This is a schematic diagram of the formal structure of the waterproof protective cover for the hemodialysis belt tunnel with polyester sheath provided by this utility model.

[0018] In the diagram: 10 cover, 20 conduit storage sleeve, 30 rubber ring, 40 round skin-friendly adhesive patch, 50 elastic strap, 11 ring-shaped skin-friendly adhesive area, 12 internal sealing cavity, 13 skin-friendly water-blocking strip, 14 waterproof adhesive strip, 15 radial guide groove, 21 conduit storage cavity, 22 storage port, 23 sealing ring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0021] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0022] Reference Figure 1-2 The image shown is a preferred embodiment of the present invention.

[0023] A waterproof protective cover for a hemodialysis tube with a tunnel and polyester sheath includes a cover body 10. A tube storage sleeve 20 is connected to the outer side of the cover body 10. The tube storage sleeve 20 has a tube storage cavity 21 for storing the tube. The first end of the tube storage sleeve 20 has a storage opening 22 that communicates with the tube storage cavity 21. The tube storage sleeve 20 has an adhesive end face for sticking to the skin. The bottom end face of the cover body 10 has an annular skin-friendly adhesive area 11 and a central non-adhesive area. The central non-adhesive area has an inwardly recessed internal sealing cavity 12 that communicates with the storage opening 22.

[0024] The aforementioned waterproof protective cover for hemodialysis tubes with tunnels and polyester sheaths allows the external catheter to be stored in the catheter storage cavity 21 of the catheter storage sleeve 20 through the storage port 22. The internal sealing cavity 12 of the cover 10 seals and wraps the insertion port. The cover 10 is then attached to the patient's skin through the annular skin-friendly adhesive area 11, and the catheter storage sleeve 20 is then fixed to the patient's skin, providing a waterproof function. Because this design is a closed design, it solves the problem of patients' daily showering, swimming, and other needs, protecting the insertion port and catheter. This design is washable and reusable.

[0025] The diameter of the internal sealing cavity 12 is larger than the outer diameter of the polyester sleeve.

[0026] In this embodiment, the thickness of the cover 10 gradually decreases from the inside out, and the annular skin-friendly adhesive area 11 is arranged circumferentially around the outer side of the central adhesive-free area. This makes the cover 10 more suitable for attaching to the patient's skin and increases its adhesion stability.

[0027] In this embodiment, a skin-friendly water-blocking strip 13 and a waterproof adhesive strip 14 are provided on the outer side of the annular skin-friendly adhesive area 11. The skin-friendly water-blocking strip 13 is arranged around the outer circumference of the annular skin-friendly adhesive area 11, and the waterproof adhesive strip 14 is arranged around the outer circumference of the skin-friendly water-blocking strip 13.

[0028] The skin-friendly water-blocking strip 13 can be made of skin-friendly silicone or similar material. Its main function is to passively adhere and compress (by attaching the waterproof strip 14 to the patient's skin, and then attaching it to the patient's skin through the annular skin-friendly adhesive area 11, the two adhering and compressing the skin-friendly water-blocking strip 13), so that it can be tightly attached to the patient's skin and form a water-blocking barrier around the outside of the insertion port, thereby playing a waterproof role. The width of the waterproof strip 14 can be 8-12mm, and the material is medical-grade silicone.

[0029] In this embodiment, the waterproof adhesive strip 14 is a structure that mimics the edge of swimming goggles, and the bottom surface of the waterproof adhesive strip 14 is coated with a hydrogel layer.

[0030] The mimicking edge structure of swimming goggles makes it easier for the waterproof adhesive strip 14 to adhere to the patient's skin. The hydrogel layer is used for skin-friendly adhesion. The hydrogel layer, as a hydrogel dressing, can also continuously provide a moist environment for the wound, promote the growth and migration of epithelial cells, and avoid the dryness and scabbing problems caused by traditional dressings.

[0031] In this embodiment, the bottom end of the catheter storage sleeve 20 is closed, and the storage opening 22 is located on the bottom end surface of the cover 10. A telescopic sealing ring 23 is provided on the storage opening 22, and the sealing ring 23 is arranged around the circumference of the storage opening 22. In this way, the outer circumference of the catheter can be sealed and wrapped by the sealing ring 23, thereby isolating the catheter storage cavity 21 from the internal sealed cavity 12 and improving the waterproof effect.

[0032] In this embodiment, an elastically deformable rubber ring 30 is provided on the outside of the catheter storage sleeve 20, and a circular skin-friendly adhesive patch 40 is connected to both ends of the rubber ring 30. The circular skin-friendly adhesive patch 40 forms a 90° angle with the catheter storage sleeve 20.

[0033] The round skin-friendly adhesive patch 40 is used to be applied to the patient's skin. The rubber ring 30 and the round skin-friendly adhesive patch 40 are reinforced designs, and can be applied in a comfortable position according to the patient's skin condition, and can be adjusted at will.

[0034] In this embodiment, the cover 10 consists of a waterproof layer, a breathable layer, and an antibacterial layer from the outside to the inside.

[0035] The waterproof layer serves to prevent water damage. The breathable layer has a honeycomb mesh structure with a mesh size of 0.3-0.8mm and an air permeability of ≥0.8cm3 / cm3 / s. It is made of medical-grade silicone composite non-woven fabric, which provides breathability. The antibacterial layer enhances the antibacterial effect.

[0036] In this embodiment, radial drainage grooves 15 are provided on the surface of the waterproof layer. The waterproof layer is made of medical-grade TPU material. The radial drainage grooves 15 have a depth of 0.5-1.2mm and a groove spacing of 3-5mm, which are used to disperse the impact of water flow.

[0037] In this embodiment, the antibacterial layer is a removable silicone pad coated with a chlorhexidine coating. This saves costs while still providing an antibacterial effect. The end of the antibacterial layer that adheres to the skin has a wavy texture, reducing the contact area by 30%-50%.

[0038] In this embodiment, an elastic band 50 is provided on the outer side of the cover 10, and a medical hypoallergenic Velcro is provided at the end of the elastic band 50. The elastic band 50 is made of highly elastic hypoallergenic fiber with an elongation rate of ≥300%, and the end is provided with a medical hypoallergenic Velcro, which supports one-handed wrapping and fixing, thereby improving the stability of the cover 10 when attached.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterproof protective cover for a hemodialysis tube with a tunnel and polyester sheath, characterized in that, The device includes a cover, on the outer side of which is connected a catheter storage sleeve. The catheter storage sleeve has a catheter storage cavity for storing catheters. The first end of the catheter storage sleeve has a storage opening that communicates with the catheter storage cavity. The catheter storage sleeve has an adhesive end face for attaching to the skin. The bottom end face of the cover has an annular skin-friendly adhesive area and a central non-adhesive area. The central non-adhesive area has an inwardly recessed internal sealing cavity that communicates with the storage opening.

2. The waterproof protective cover for a hemodialysis tube with a tunnel and polyester sheath as described in claim 1, characterized in that, The thickness of the cover is designed to gradually decrease from the inside to the outside, and the annular skin-friendly adhesive area is arranged around the outer periphery of the central adhesive-free area.

3. The waterproof protective cover for a hemodialysis tube with a tunnel and polyester sheath as described in claim 1, characterized in that, A skin-friendly water-resistant strip and a waterproof strip are provided on the outer side of the annular skin-friendly adhesive area. The skin-friendly water-resistant strip is arranged around the outer circumference of the annular skin-friendly adhesive area, and the waterproof strip is arranged around the outer circumference of the skin-friendly water-resistant strip.

4. The waterproof protective cover for a hemodialysis tube with a tunnel and polyester sheath as described in claim 3, characterized in that, The waterproof adhesive strip has a structure similar to the edge of swimming goggles, and the bottom surface of the waterproof adhesive strip is coated with a hydrogel layer.

5. The waterproof protective cover for a hemodialysis tube with a tunnel and polyester sheath, as described in any one of claims 1 to 4, is characterized in that... The bottom end of the conduit storage sleeve is closed, and the storage opening is located on the bottom end surface of the cover. A telescopic sealing ring is provided on the storage opening, and the sealing ring is arranged around the circumference of the storage opening.

6. The waterproof protective cover for a hemodialysis tube with a tunnel and polyester sheath as described in claim 5, characterized in that, The catheter storage sleeve has an elastically deformable rubber ring on its outer surface. Both ends of the rubber ring are connected to circular skin-friendly adhesive patches, which form a 90° angle with the catheter storage sleeve.

7. The waterproof protective cover for a hemodialysis tube with a tunnel and polyester sheath as described in claim 6, characterized in that, The cover consists of a waterproof layer, a breathable layer, and an antibacterial layer from the outside in.

8. The waterproof protective cover for a hemodialysis tube with a tunnel and polyester sheath as described in claim 7, characterized in that, The surface of the waterproof layer is provided with radial flow channels.

9. The waterproof protective cover for a hemodialysis tube with a tunnel and polyester sheath as described in claim 8, characterized in that, The antibacterial layer is a removable silicone pad with a chlorhexidine coating on its surface.

10. The waterproof protective cover for a hemodialysis tube with a tunnel and polyester sheath as described in any one of claims 1 to 4, characterized in that, An elastic strap is provided on the outer side of the cover, and a medical hypoallergenic Velcro is provided at the end of the elastic strap.

Images