Overlapping tourniquet cuff system

An overlapping tourniquet cuff system comprising:

• a sheath having an inner side, an outer side, side edges, end edges, a center axis located equidistant between the side edges and a length dimension along the center axis between the end edges, and having an inflating portion and a non-inflating portion extending along the length of the sheath, wherein the length of the sheath is sufficient for the sheath to overlap when the sheath is applied circumferentially around a limb at a desired location;
• first sheath securing means having a first element on the outer side of the sheath and a second element attached to the inner side of the sheath at a selected location in the non-inflating portion and extending across the center axis at the location so that the second element engages the first element to secure the sheath when the sheath is applied around the limb;
• second sheath securing means for securing the overlapping sheath in a substantially circumferential direction around the limb such that the sheath remains overlapped and secured if the second element of the first sheath securing means does not engage the first element of the first sheath securing means or becomes ineffective while the inflating portion of the sheath is inflated to a pressure sufficient to occlude flow in blood vessels in the limb encircled by the sheath;
• and
• pressure regulator means adapted to supply the inflating portion of the sheath with pressurized gas.

An overlapping tourniquet cuff system having secondary securing means for improved safety, comprising:

• a sheath having an inner side, an outer side, side edges, end edges, a center axis located equidistant between the side edges and a length dimension along the center axis between the end edges, and having an inflating portion and a non-inflating portion extending along the length of the sheath, wherein the length of the inflating portion of the sheath is sufficient for the inflating portion to overlap when the sheath is applied circumferentially around a limb at a desired location on the limb;
• first sheath securing means having a first element on the outer side of the sheath and a second element on the inner side of the sheath at a selected sheath location and extending across the center axis at the location so that the second element engages the first element to secure the sheath when the sheath is applied around the limb, wherein the second element has a width dimension between the side edges which is not greater than the distance between the side edges at the selected sheath location and a length dimension along the center axis which is not greater than the width dimension;
• and
• second sheath securing means having a third element on the outer side of the sheath across the center axis of the sheath and having a fourth element attached to the outer side of the sheath across the center axis and extending past one of the end edges to engage the third element across the center axis of the sheath when the sheath is applied around the limb at the desired location, thereby securing the overlapping sheath in a substantially circumferential direction around the limb such that the sheath remains overlapped and secured if the second element of the first securing means does not engage or becomes ineffective while the inflating portion of the sheath is inflated to a pressure sufficient to occlude flow in blood vessels in the limb encircled by the sheath.