Abstract: A subatmospheric pressure dressing can be readily applied by a single person and includes a flexible base which supports a gas permeable screen. A flexible sheet encloses the base and screen. The screen is connected with a source of low pressure (vacuum) by a suction tube. Transmittal of low fluid pressure causes the flexible sheet to be drawn into close contact with the screen to indicate that suction has been established. If a leak develops, the flexible sheet is no longer drawn to the screen to provide a clear indication of the leak.

Abstract: A method of inhibiting and/or treating wounds on a patient's skin includes applying a covering of collodion over an area on the patient's skin which is prone to formation of an ulcer or to a wound on the patient's skin where a wound has formed. The covering of collodion may contain an active ingredient to stimulate healing of the area covered by the collodion.

Abstract: A dissecting device includes a plurality of blades which are pivotally mounted on a base. A wire is connected with each of the blades to effect pivotal movement of the blades relative to the base. The base includes a guide wire passage. When the appearance of a patient's skin is to be changed, the dissecting device is moved onto a guide wire which has been inserted beneath a selected portion of the patient's skin. The dissecting device is moved along the wire to a location beneath the selected portion of the skin and is actuated to dissect connective tissue. An implant, such as a collagen sheet, mesh, or other material, is positioned at the location beneath the selected portion of the patient's skin.