Pump element of a device for artificial respiration

A manually-operated pump element of a device for artificial respiration of human beings safely both as to children as well as adults having different lung capacity for volume of air to be supplied free of danger and without risk of pressure-overloading to lungs, respectively;

• said pump element comprising in combination:
• a gastight, elastomeric, self-expanding hollow body having a periphery and an essentially circular cross section;
• said hollow body including a wall having only two actual indentations integrated therein which extend in the axial direction of said hollow body;
• said two indentations, when viewed on a given cross section of said hollow body, being separated from one another by an angle in a range of approximately 100.degree. to 140.degree. as a result of which said hollow body can be grasped via the palm of the hand, and the fingers span the periphery of said hollow body by engagement therewith rather than visually so that when said hollow body is compressed manually, such hollow body thus being emptied either approximately one third or two thirds for children as well as adults respectively;
• a first tubular connecting piece joined to said hollow body as an air-inlet opening;
• and
• a second tubular connecting piece joined to said hollow body as an air-exit opening.