Anchoring and occluding surgical dressing

A surgical dressing comprising:

• a dressing upper portion having a rear surface adapted to contact a patient, a front surface adapted to face away from a patient, attaching means on said rear surface for attaching said dressing upper portion to a patient, an opening defined in said dressing upper portion, an elongate band attached at one end thereof to said dressing upper portion adjacent said opening, said band having another end thereof adapted to be attached to a medical device extending through said opening and at an angle with respect to said upper portion, said another end being adapted to be attached to such surgical device at a location spaced from said dressing upper portion front surface for anchoring such medical device to a patient via said dressing upper portion;
• and
• a dressing lower portion foldably connected to said dressing upper portion, said dressing lower portion having a rear surface and a front surface, second attaching means on said dressing lower portion front surface which attaches to said dressing upper portion front surface when said dressing lower portion is positioned to overlie said dressing upper portion so that when said lower portion overlies said upper portion those dressing portions are attached together with said dressing lower portion completely convering and occluding said opening area to prevent foreign matter from passing through said opening when no surgical device is located in said opening.