Antibacterial polyurethane foam dressing

By designing an antibacterial polyurethane foam dressing, the problem of frequent changes required by traditional dressings has been solved. This allows for timed dressing changes and reuse of the airbag, reducing the burden and cost on patients. It also provides pressure hemostasis and antibacterial effects, promoting wound healing.

CN223799870UActive Publication Date: 2026-01-16HENAN CANGDI BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422997022.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-05
Publication Date
2026-01-16
Estimated Expiration
2034-12-05

AI Technical Summary

Technical Problem

Traditional dressings require frequent changes when there is a lot of exudate, which increases the burden on patients, and the airbags cannot be reused, leading to increased costs.

Method used

An antibacterial polyurethane foam dressing was designed, comprising a fixing ring, a detachable pressure device, and an antibacterial layer. The fixing ring is attached to the skin by an adhesive layer. The dressing can be changed periodically. The air bladder is detachable and reusable and is fixed with Velcro. The connecting strap has a cross-shaped structure. The inflation tube has a one-way valve. The dressing contains an antibacterial layer and an overflow hole.

Benefits of technology

It enables timed dressing changes and reusable airbags, reducing the frequency and cost of dressing changes, while also providing pressure hemostasis and antibacterial functions to promote wound healing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model particularly relates to an antibacterial polyurethane foam dressing which comprises a fixing ring arranged outside, a through hole is formed in the middle of the fixing ring, the fixing ring is made of polyurethane materials, an adhesive layer is arranged at the bottom of the fixing ring, isolation paper is arranged at the bottom of the adhesive layer, and the dressing is placed at the position of the hole of the fixing ring. A detachable pressurizing device is installed at the top of the dressing and comprises an air bag, a connecting belt is connected to the top face of the air bag, the bottom of the connecting belt is connected with the top face of the fixing ring through a fixing device, an inflation pipe is arranged at the top of the air bag and penetrates through the connecting belt, and limiting grooves are symmetrically formed in the top of the fixing ring. Limiting pieces are symmetrically arranged outside the dressing and matched with the limiting grooves. The air bag plays a role in pressurizing and stopping bleeding.
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Description

TECHNICAL FIELD

[0001] The utility model relates to dressing equipment field, concretely relates to an antibacterial polyurethane foam dressing. BACKGROUND

[0002] Dressing refers to the material used for the main material of the article. The traditional dressing is mainly dry gauze, and the modern dressing has foam dressing, hydrocolloid dressing and the like, which can promote the healing of the wound and prevent secondary pollution. The contrast file CN2023222516426 discloses a kind of pressurized hemostatic dressing, if liquid leakage is more at the beginning, dressing needs to be frequently replaced, if patient needs to replace dressing, air bag will also be discarded, increase the burden of patient. SUMMARY

[0003] The utility model provides a kind of antibacterial polyurethane foam dressing.

[0004] The technical scheme of the utility model is as follows: a kind of antibacterial polyurethane foam dressing, including the fixed ring being set at outside, the middle position of fixed ring is through -hole, fixed ring is polyurethane material, the bottom of fixed ring is provided with adhesive layer, the bottom of adhesive layer is provided with isolation paper, the position of the hole of fixed ring is placed with dressing, the top of dressing is equipped with detachable pressurizing device, detachable pressurizing device includes air bag, the top of air bag is connected with connecting band, the bottom of connecting band is connected between the top of fixed ring by fixed device, the top of air bag is provided with inflation tube, inflation tube is set through connecting band, the top of fixed ring is provided with limit slot symmetrically, the outside of dressing is provided with limit sheet symmetrically, limit sheet cooperates with limit slot.

[0005] Fixed device includes magic tape nappe and magic tape thorn face, magic tape nappe is symmetrically distributed on the top of fixed ring, magic tape thorn face is fixedly connected at the bottom of connecting band.

[0006] The bottom of fixed ring is provided with placement slot for placing catheter.

[0007] The end of inflation tube is equipped with one-way valve.

[0008] Dressing includes antibacterial layer at bottom surface, the top of antibacterial layer is liquid absorption layer, the top of liquid absorption layer is outer protective layer, outer protective layer is polyurethane film, and antibacterial layer is anionic antibacterial layer.

[0009] A plurality of vertically arranged overflow holes are formed on the antibacterial layer.

[0010] The utility model has the following positive effects: the utility model includes fixed ring, which can be adhered to the skin, and dressing is placed in the middle and needs to be replaced regularly; the air bag can be detached, and after the dressing is replaced, the air bag can still be used, which is reusable, saves costs, and the air bag plays a role in pressurizing and hemostasis.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the structure schematic view of the utility model.

[0012] Figure 2 It is the top view of fixed ring.

[0013] Figure 3 It is the bottom view of air bag.

[0014] Figure 4 It is the connection schematic view of dressing. DETAILED DESCRIPTION

[0015] As Figures 1-4 The utility model discloses an antibacterial polyurethane foam dressing, including the fixed ring 1 of setting outside, the middle position of fixed ring 1 is through -hole 2, and fixed ring 1 is polyurethane material, and the bottom of fixed ring 1 is provided with adhesive layer 3, and the bottom of adhesive layer 3 is provided with isolation paper 4, and the position of the hole of fixed ring 1 places dressing 5, and the top of dressing 5 is installed with detachable pressure device, and detachable pressure device includes air bag 6, and the top of air bag 6 is connected with connecting belt 7, and the bottom of connecting belt 7 is connected through fixing device between the top of fixed ring 1, and the top of air bag 6 is provided with inflation tube 8, and inflation tube 8 sets through connecting belt 7, and the top of fixed ring 1 is provided with limit slot 9 symmetrically, and the outside of dressing 5 is provided with limit sheet 10 symmetrically, and limit sheet 10 cooperates with limit slot 9, and specifically, fixed ring 1 takes the wound as the center, tears off isolation paper 4 at the bottom of fixed ring 1, sticks on the skin through adhesive layer 3, places dressing 5 at the position of through -hole 2, i. e. at the position of the wound, then places air bag 6 on the top of dressing 5, fixes connecting belt 7 on the top of fixed ring 1 through fixing device, inserts the syringe on inflation tube 8 to inflate air bag 6, and the wound is pressed to stop bleeding, and dressing 5 can be replaced regularly, and air bag 6 can be repeatedly used, and cost is saved.

[0016] The fixing device includes magic tape velvet 17 and magic tape thorn face 18, and magic tape velvet 17 is symmetrically distributed on the top of fixed ring 1, and magic tape thorn face 18 is fixedly connected on the bottom of connecting belt 7, and specifically, connecting belt 7 is fixed on the top of fixed ring 1 through magic tape velvet 17 and magic tape thorn face 18, and it is convenient to replace dressing 5.

[0017] The bottom of fixed ring 1 is provided with placing slot 11 for placing catheter.

[0018] Connecting belt 7 is the cross structure.

[0019] The end of inflation tube 8 is installed with one -way valve 12.

[0020] The dressing 5 comprises an antibacterial layer 14 on the bottom surface, the top of the antibacterial layer 14 is a liquid absorption layer 13, the top of the liquid absorption layer 13 is an outer protective layer 15, the outer protective layer 15 is a polyurethane film, and the antibacterial layer 14 is an anion antibacterial layer; specifically, silver ions can directly kill bacteria, control wound infection, and accelerate wound healing.

[0021] A plurality of vertically arranged overflow holes 16 are formed on the antibacterial layer 14 and are evenly distributed; if there is blood at the wound, the blood will enter the liquid absorption layer 13 upward through the overflow holes 16 and be absorbed by the liquid absorption layer 13.

Claims

1. An antimicrobial polyurethane foam dressing, characterized by: The utility model provides a kind of detachable pressure device for fixing ring, it is including being placed in outside, the middle position of fixed ring is through-hole, fixed ring is polyurethane material, the bottom of fixed ring is provided with adhesive layer, the bottom of adhesive layer is provided with isolation paper, the position of the hole of fixed ring is placed with dressing, the top of dressing is equipped with detachable pressure device, detachable pressure device includes air bag, the top surface of air bag is connected with connecting band, the bottom of connecting band is connected between the top surface of fixed ring by fixing device, the top of air bag is provided with inflation tube, inflation tube is set through connecting band, the top of fixed ring is provided with limit slot symmetrically, the outside of dressing is provided with limit sheet symmetrically, limit sheet is matched with limit slot.

2. An antimicrobial polyurethane foam dressing according to claim 1, characterized in that: The fixing device includes a Velcro fleece and a Velcro prickle surface, the Velcro fleece is symmetrically distributed on the top surface of the fixed ring, and the Velcro prickle surface is fixedly connected to the bottom of the connecting band.

3. The antimicrobial polyurethane foam dressing of claim 1, wherein: The bottom of the fixed ring is provided with a placement slot for placing a catheter.

4. The antimicrobial polyurethane foam dressing of claim 1, wherein: The end of the inflation tube is provided with a one-way valve.

5. The antimicrobial polyurethane foam dressing of claim 1, wherein: The dressing includes an antibacterial layer on the bottom surface, an absorbent layer on the top of the antibacterial layer, and an outer protective layer on the top of the absorbent layer. The outer protective layer is a polyurethane film, and the antibacterial layer is an anionic antibacterial layer.

6. An antimicrobial polyurethane foam dressing according to claim 5, characterized in that: A plurality of vertically arranged overflow holes are evenly distributed on the antibacterial layer.