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Absorbent Foam Dressings
by：Huawei
2020-09-04
Foam dressings are one of several many absorbent dressings to be found in the market now days time. A normal foam dressing has an absorbent porous hydrocellular polyurethane center. This dressing is going to be laminated with a semiocclusive outer layer.
Different types of foam dressings have varying Moisture Vapor Transmission Rates (MVTRs) of their outer .
Moisture Vapor Transmission Rates basically defines the capacity of the foam soak up. i.e. a dressings with a very high Moisture Vapor Transmission Rates are said to be semiocclusive and allow evaporation of moisture.
Foam dressings with a much higher MVTR have greater absorbent capacity and are sturdier i.e. they have longer wear times as compared to occlusive backings that possess a lower MVTR.
Second generation foam dressings could have pores of variable sizes. This allows partial fluid retention as well as to fluid exchange. In case your dressing has larger pore sizes this will permit moisture to be exchanged between the base in the ulcer and the dressing on the other hand smaller sized pores get saturated and hold back moisture from the wound.
Moisture in a foam dressing is retained underneath the polyurethane backing in the lacunae of the mobile material. An area where foam dressings come in handy is when the wound is highly exuding. The foam dressing helps keep periwound maceration and the tissue damage associated places to a minimum.
Dressings made of foam are said to be nonocclusive and as an end result are permeable to gases and water. This is effective as it lets the wound bed to breathe and permits quick evaporation of excess moisture.
A foam dressing without having occlusive backing the excess moisture will slowly evaporate from the exposed the surface of a highly exuding harm. Also the fluid might transfer to more absorbent secondary dressing.
These dressings are mostly if not always nonbioresorbable and nonadherent. The issue about these kinds of dressings is that process, which is be shaped to fit wounds of any size easily. This includes wounds that have deeper some other primary.
Some specific foam dressings come with a secondary coating which is in the dressing and wound surface junction. These specific dressing might have an adhesive or soft silicone layer. The purpose of the silicon layer is to reduce trauma that might happen towards the wound bed and also pain suffered by affected person during dressing removal.
Foam dressings are indicated for use with highly exudating venous ulcers but are contraindicated in dry wounds as in dry wounds there is no element of absorbency of moisture.
Different types of foam dressings have varying Moisture Vapor Transmission Rates (MVTRs) of their outer .
Moisture Vapor Transmission Rates basically defines the capacity of the foam soak up. i.e. a dressings with a very high Moisture Vapor Transmission Rates are said to be semiocclusive and allow evaporation of moisture.
Foam dressings with a much higher MVTR have greater absorbent capacity and are sturdier i.e. they have longer wear times as compared to occlusive backings that possess a lower MVTR.
Second generation foam dressings could have pores of variable sizes. This allows partial fluid retention as well as to fluid exchange. In case your dressing has larger pore sizes this will permit moisture to be exchanged between the base in the ulcer and the dressing on the other hand smaller sized pores get saturated and hold back moisture from the wound.
Moisture in a foam dressing is retained underneath the polyurethane backing in the lacunae of the mobile material. An area where foam dressings come in handy is when the wound is highly exuding. The foam dressing helps keep periwound maceration and the tissue damage associated places to a minimum.
Dressings made of foam are said to be nonocclusive and as an end result are permeable to gases and water. This is effective as it lets the wound bed to breathe and permits quick evaporation of excess moisture.
A foam dressing without having occlusive backing the excess moisture will slowly evaporate from the exposed the surface of a highly exuding harm. Also the fluid might transfer to more absorbent secondary dressing.
These dressings are mostly if not always nonbioresorbable and nonadherent. The issue about these kinds of dressings is that process, which is be shaped to fit wounds of any size easily. This includes wounds that have deeper some other primary.
Some specific foam dressings come with a secondary coating which is in the dressing and wound surface junction. These specific dressing might have an adhesive or soft silicone layer. The purpose of the silicon layer is to reduce trauma that might happen towards the wound bed and also pain suffered by affected person during dressing removal.
Foam dressings are indicated for use with highly exudating venous ulcers but are contraindicated in dry wounds as in dry wounds there is no element of absorbency of moisture.
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