Skin contact material
AssigneeConvatec Limited
InventorStewart LEE
Life of this patent
Estimating the term…
Abstract
A substrate based skin contact material formed from a hydrocolloid having a silicone based component extending over regions of the substrate surface. The adhesive is formed non-continuously over the substrate to provide areas devoid of adhesive to allow appreciable moisture transfer between the skin and substrate and improve the skin friendliness of the material during use and allow convenient removal with avoidance of skin irritation.
Claims20
A skin contact material for positioning against human or animal skin, the material comprising:
- a hydrocolloid substrate having a first surface intended to be positioned against the skin and a second surface intended to be facing away from the skin;
- a silicone adhesive layer provided on the first surface and intended to be
- positioned in contact with the skin to adhere the material to the skin, the silicone adhesive layer being non-continuous over the first surface such that areas of the first surface are not concealed by the silicone adhesive layer, the areas capable of positioning directly adjacent and/or in contact with the skin.
The material as claimed in any preceding claim further comprising gelatine or pectin.
The material as claimed in any preceding claim wherein the hydrocolloid further comprises a carboxymethylcellulose in a polyisobutylene matrix.
The material as claimed any preceding claim wherein the silicone adhesive is a composite and comprises a plurality of different silicones and/or silicone based materials.
The material as claimed in any proceeding claim wherein the hydrocolloid substrate comprises a thickness in the range 0.5 to 5.0 mm.
The material as claimed in any proceeding claim wherein the silicone adhesive is formed as lines, dots, flecks or marks on the first surface.
The material as claimed in any preceding claim wherein the silicone adhesive is formed as lines or ridges extending over the first surface.
A medical dressing comprising a skin contact material according to any preceding claim.
A skin contact material for positioning against human or animal skin, the material comprising:
- a substrate having a first surface intended to be positioned against the skin and a second surface intended to be facing away from the skin, the substrate comprising any one or a combination of a hydrocolloid, a low density polyethylene, a high density
- polyethylene, a polypropylene, a polyester or a silicone based material;
- a silicone adhesive layer provided on the first surface and intended to be positioned in contact with the skin to adhere the material to the skin, the silicone adhesive layer being non-continuous over the first surface such that areas of the first surface are not concealed by the silicone adhesive layer, the areas capable of positioning directly adjacent
- and/or in contact with the skin.
Dependencies are inferred from the claim text.