Self-locking tourniquet and automated timer

摘要

Tourniquet assemblies are provided including a pressure applicator adapted to be secured around a limb and a tensioning mechanism for applying a working tension to the pressure applicator. The tensioning mechanism may include a platform, a clip and a tensioning member. The tensioning mechanism may be configured to apply the working tension via rotation of the tensioning member, and the clip may be configured to receive, and at least temporarily inhibit rotation of, the tensioning member. A tension indicator may also be provided including a base configured to attach to a tourniquet strap, a platform configured to move relative to the base when subjected to a tourniquet working pressure, and one or more tactile or visual indicators configured to provide a variable tactile or visual indicator based on the tourniquet working pressure.

主权项

1. A tourniquet assembly comprising:
a pressure applicator adapted to be secured around a limb; a tensioning mechanism for applying a working tension to the pressure applicator, the tensioning mechanism including a platform, a clip and a tensioning member; wherein, the tensioning mechanism is configured to apply the working tension via rotation of the tensioning member, and the clip is configured to receive, and at least temporarily inhibit rotation of, the tensioning member; and a tension indicator, wherein said tension indicator comprises:
a base configured to attach to the pressure applicator;a tension indicator platform configured to move relative to the base when subjected to the working tension;a tactile indicator configured to provide a variable tactile indicator based on relative lateral motion of the platform to the base;a visual indicator configured to provide a variable visible indicator based on the working tension, wherein:
said visual indicator comprises a reservoir, a timing strip, and a seal between the reservoir and the timing strip; andan initiator configured to apply a variable pressure to the visual indicator based on relative lateral motion of the tension indicator platform to the base, wherein:
said initiator includes a moveable member that is configured to apply the variable pressure to the reservoir via vertical displacement of the moveable member in response to the relative lateral motion of the tension indicator platform to the base.