MEDICAL DRESSING FOR A CONVEX BODY PART

• US 20190328579A1
• Filed: 01/10/2018
• Published: 10/31/2019
• Est. Priority Date: 01/11/2017
• Status: Active Grant

• Current Assignee: Molnlycke Health Care AB (Mölnlycke Holding AB)
• Original Assignee: Molnlycke Health Care AB (Mölnlycke Holding AB)
• Inventors: Leppanen, Timo, Ostan, Karin, Rodzewicz, Patrick, Martensson, Malin
• Granted Patent: US 11,395,766 B2
• Time in Patent Office: Days
• CPC Class Codes: A61F 13/00 Bandages or dressings radioactive dressings A61N5/1029; Absorbent pads
• CPC Class Codes: A61F 13/0203 with fluid retention members
• CPC Class Codes: A61F 13/025 having a special distribution arrangement of the adhesive
• CPC Class Codes: A61F 13/0266 especially adapted for wound covering/occlusive dressings
• CPC Class Codes: A61F 13/0289 manufacturing of adhesive dressings
• CPC Class Codes: A61F 13/061 for knees incorporating non-textile reinforcing elements, e.g. springs or stays, A61F5/0111; Patella supports
• CPC Class Codes: A61F 13/064 for feet incorporating non-textile reinforcing elements, e.g. springs or stays A61F5/0111; corn-pads, corn-rings A61F13/063
• CPC Class Codes: A61F 13/101 for the elbow, e.g. decubitus ulcer bandages A61F13/107 takes precedence
• CPC Class Codes: A61F 2013/00578 conformable; soft or flexible, e.g. elastomeric
• CPC Class Codes: A61F 2013/00604 Multilayer

Abstract

Disclosed is a medical dressing having a pad and a border portion. The pad can have a rim and the border portion extends along said rim. The medical dressing can be arranged in a first substantially planar configuration and be folded along a first line, and a second portion of said medical dressing is formed and a second substantially cup-shaped configuration. The first portion can be facing and contacting said second portion. Said first substantially planar configuration the first and second portions can be connected by means of a fixed connection along a second line, which defines a second line segment having a first and a second end-point. The first and second line segments are connected at their respective first end-points such that an angle between 90 and 175 degrees is formed between the first and second line segments when the medical dressing is in the first substantially planar configuration.

Claims

1. A medical dressing for use on a convex part of the human body, said medical dressing comprises a pad and a border portion;

wherein said pad comprises a rim and said border portion extends along said rim and comprises an adhesive body contact layer; and

wherein said medical dressing can be arranged in a first substantially planar configuration and a second substantially cup-shaped configuration;

wherein in said first substantially planar configuration;

said medical dressing is folded along a first line defining a first line segment having a first and a second end-point such that a first portion and a second portion of said medical dressing is formed, wherein said first portion of said medical dressing is facing and contacting said second portion of said medical dressing;

said first and second portions of said medical dressing are connected by means of a fixed connection along a second line defining a second line segment having a first and a second end-point;

said first and second line segments being connected at their respective first end-points such that an angle between 90 and 175 degrees is formed between said first and second line segments;

wherein in said second substantially cup-shaped configuration;

said border portion forms a peripheral edge of said medical dressing; and

said second end-points of said first and second line segments lay on said peripheral edge of said medical dressing.

2. The medical dressing according to claim 1, wherein said pad comprises an indentation, and wherein said fixed connection of the medical dressing is provided in said indentation.

3. The medical dressing according to claim 1, wherein the ratio of the length of said first line segment and the length of said second line segment is 0.30-1.5.

4. The medical dressing according to claim 1, wherein in said second substantially cup-shaped configuration, said first and second line segments span a symmetry plane of said pad and of said medical dressing.

5. The medical dressing according to claim 1, wherein said fixed connection of said first and second portions is provided by means of a welded seam.

6. The medical dressing according to claim 1, wherein said medical dressing further comprises at least one gripping tab outwardly projecting from said border portion.

7. The medical dressing according to claim 1, wherein said border portion has a tensile strength of between 3.5 and 10 N at an elongation of 25%, as measured by ASTM D 882-12.

8. The medical dressing according to claim 1, wherein said border portion is formed by said adhesive body contact layer and a backing layer;

wherein said adhesive body contact layer and said backing layer each has an extension such that said pad is provided between said adhesive body contact layer and said backing layer; and

wherein said adhesive body contact layer and said backing layer extend beyond the rim of said pad to define said border portion.

9. The medical dressing according to claim 8, wherein said backing layer has a friction coefficient of less than 1.5 N, as measured by the test method ASTM D 1894-14.

10. The medical dressing according to claim 8, wherein said fixed connection of said first and second portions is provided by means of a welded seam that extends through the adhesive body contact layer and the backing layer.

11. The medical dressing according to claim 8, wherein said adhesive body contact layer comprises an adhesive layer which covers at least 60% of the surface of the medical dressing.

12. The medical dressing according to claim 8 wherein said adhesive body contact layer comprises two sub-layers;

wherein a first sub-layer of said body contact layer comprises a polymer film; and

wherein a second sub-layer of said body contact layer is an adhesive silicone layer.

13. A method for providing a medical dressing for a convex part of the human body, said method comprising:

providing a medical dressing having a backing layer, a pad, an adhesive body contact layer and a release layer, wherein said pad is provided between said backing layer and said adhesive body contact layer, and said release layer is provided on said adhesive body contact layer;

folding said medical dressing along a first line segment such that a first portion of the backing layer comes into contact with a second portion of the backing layer and wherein said release layer thereby becomes the outermost layer of the folded medical dressing;

welding said medical dressing along a second line segment such that a welded seam is provided, wherein said welding is done through the backing layer, adhesive body contact layer and release layer, such that a first part of the backing layer and a first part of the adhesive body contact layer become fixedly connected to a second part of the backing layer and a second part of the adhesive body contact layer by means of said welded seam.

14. A method for providing a medical dressing for a convex part of the human body according to claim 13, said method further comprising:

providing said first and second line segments such that they are connected at a respective first end-point; and

such that an angle between 90 and 175 degrees is formed between said first and second line segments.

15. A method for providing a medical dressing for a convex part of the human body according to claim 13, wherein said backing layer and said adhesive body contact layer extend beyond the rim of said pad to define a border portion of the medical dressing, wherein a respective second end point of the first and second line segments are distanced from each other and provided on a peripheral edge of said border portion.