A venting device for wearing on a patient's limb, comprising:
- a flexible outer covering having an outer surface and an inner surface, the outer covering having a first end and a second end and a longitudinal axis therebetween, wherein the outer covering is tubular such that the first and second ends are open;
- a tubular assembly inside the outer covering and supported substantially coaxially thereof, wherein the tubular assembly has a diameter inside which the patient's limb is received, the tubular assembly comprising:
- a set of venting strips arranged at angularly spaced positions to each other around the longitudinal axis to define seams between each adjacent pair of the venting strips, wherein the venting strips are anchored to the inner surface of the outer covering, wherein the venting strips extend axially and angularly in a common direction about the longitudinal axis to follow substantially parallel and helical paths about the longitudinal axis, wherein the venting strips have outer surfaces facing the outer covering and inner surfaces arranged to face the patient's limb;
- and
- a set of buffers respectively arranged in the seams and following respective helical paths around the longitudinal axis;
- wherein the buffers are respectively anchored to one of the adjacent pair of the venting strips located on a common side thereof relative to a first direction around the longitudinal axis to be arranged in fixed relation to each other, and wherein the buffers are free from anchoring to another one of the adjacent pair of the venting strips on a common side thereof relative to a second direction around the longitudinal axis opposite to the first direction, so as to form a plurality of subassemblies of the tubular assembly which are detached from each other, each of the subassemblies comprising one of the buffers and one of the venting strips;
- wherein the venting strips and the buffers are flexible axially and angularly of the longitudinal axis to permit twisting of the tubular assembly around the longitudinal axis for varying the diameter of the tubular assembly to fit the patient's limb;
- and
- wherein each of the buffers comprises a separation panel in a corresponding one of the seams and forming a barrier between adjacent venting strips and a shielding panel of the buffer affixed to the separation panel and disposed outside the corresponding seam and in opposite relation to the outer covering, wherein the shielding panel is disposed radially inwardly of the inner surfaces of the adjacent venting strips relative to the longitudinal axis for contacting skin of the patient's limb and maintaining the inner surfaces of the venting strips in spaced relation to the skin.