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AssigneeAsmund S. Laerdal A/S
InventorsEinar Egelandsdal, Geoffrey C. Garth, John Hamilton, David Johnson, Tore Laerdal, Charles A. Patterson
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A dummy for practicing cardiopulmonary resuscitation (CPR) of a human being comprising a simulation of the thorax and the head and a lungs simulation in the form of a bag which can be inflated through the mouth or nose opening of the head. The thorax is formed by a hollow body of plastic material, which is in air exchange relationship with the atmosphere and which has stiffening ribs which reproduce approximately human ribs. In that arrangement the number and size of the stiffening ribs are so selected that the compressibility and return force of the thorax correspond to those of a human thorax not only in regard to extent but also in terms of their nature and form, and thus provide a particularly good approximation to the behavior of a human thorax (FIG. 1).
A dummy for practicing cardiopulmonary resuscitation (CPR) of a human being, comprising a simulation of the thorax and the head, wherein the thorax simulation is formed by a hollow body of plastic material, which is in air exchange relationship with the atmosphere and which is of a wall thickness which is so selected that the compressibility and return force of the thorax simulation correspond to those of a human thorax, and further comprising a cover formed of an elastically deformable material which covers the hollow body and which is releasably mounted to the hollow body, wherein the elasticity of the cover determines the inflation resistance of the bag to approximate the inflation resistance of the human lungs, wherein the hollow body has a stomach portion in the form of a depression which with its ribcage simulates the costal arch, and wherein a spring element which can be inserted into the depression is fixed to the underside of the cover or into the depression.
Dependencies are inferred from the claim text.