Asmund S. Laerdal A/s

John Hamilton

Geoffrey C Garth

Charles A Patterson

Einar Egelandsdal

David Johnson

Tore Laerdal

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.

Dummy for practicing cardiopulmonary resuscitation (CPR) of a human being

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 comprises a simulation of the thorax, the head and the lungs, with a spring device arranged in the thorax simulation to simulate the compression resistance of the thorax. The thorax simulation is a three-dimensional structure with a thorax cavity, which is cut out of flat foldable web material, for example, cardboard, along predetermined contour lines, folded along predetermined fold lines to provide the three-dimensional structure, and joined.

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Torrance, CA, United States of America

John Hamilton