Surgical dressing with thermoplastic polyurethane resin thin film serving as #-shaped reinforcing rib layer

Abstract

The invention relates to a surgical dressing with thermoplastic polyurethane resin thin film serving as a #-shaped reinforcing rib layer. The surgical dressing is characterized in that an elastic fabric serves as base cloth (1), the base cloth (1) is in a shape of a rectangle or a rounded rectangle, the inner face of the base cloth (1) is coated with a mucilage glue layer (2), a sponge fabric is pasted on a mucilage glue layer in the middle of the base cloth (1) to serve as a protection layer (3), the protection layer (3) is wrapped with release paper (4), and the outer edge of the release paper (4) is fixed to the corresponding exposed part on the periphery of the base cloth (1). The surgical dressing is characterized in that the medical thermoplastic polyurethane resin thin film fixed through hot pressing is adopted in the outer side of the base cloth (1) for serving as the reinforcing rib layer (5), the reinforcing rib layer (5) is of a #-shaped structure and is divided into transverse reinforcing ribs (5.1 and 5.2) and longitudinal reinforcing ribs (5.3 and 5.4), the two transverse reinforcing ribs (5.1 and 5.2) are parallel to the short edge of the base cloth (1) and equally divide the base cloth (1) into three parts in the long edge direction, the two longitudinal reinforcing ribs (5.3 and 5.4) are parallel to the long edge of the base cloth (1) and equally divide the base cloth (1) into three parts in the short edge direction, the width of the reinforcing ribs is 5%-10% of the width of the base cloth (1), and the thickness of the reinforcing rib layer ranges from 0.1 mm to 0.5 mm.

Description

field of invention [0001] The invention relates to a medical dressing. Background technique [0002] Medical dressings generally include an adhesive layer, a base cloth and a protective layer, which are attached to the surface of the wound through the protective layer to prevent further infection of the wound. However, in order to ensure that the surface is breathable and movable, the general dressing base layer often adopts materials with high air permeability, low elastic modulus, and high elongation, but this material has poor fixation performance. When it is fixed to a certain extent, it cannot meet the needs, and the medical thermoplastic polyurethane resin (TPU) film has a high elastic modulus, which can fix the wound well, but it is completely airtight, the sense of restraint is too strong, and the use compliance not good. Invention content: [0003] The invention provides a medical dressing with a thermoplastic polyurethane resin film as a reinforcement layer, wh...

AI Technical Summary

Problems solved by technology

However, in order to ensure that the surface is breathable and movable, the general dressing base layer often adopts materials with high air permeability, low elastic modulus, and high elongation, but this material has poor fixation performance. When it is fixed to a certain extent, it cannot meet the needs, and the medical thermoplastic polyurethane resin (TPU) film has a high elastic modulus, which can fix the wound well, but it is completely airtight, the sense of restraint is too strong, and the use compliance not good

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