Abstract: An apparatus for making a hollow elongated member having a plurality of apertures therein comprising: a first component for supporting a hollow elongated member in a predetermined position and orientation for formation of a plurality of apertures therein; and a second component for forming a plurality of apertures at a predetermined position and orientation and of a predetermmined dimension thereof in the hollow elongated member; the second component being guidably received within the first component for alignment therewith. Alternatively, the apparatus includes an insert comprising rod means for forming a plurality of apertures of a predetermined size; and means for forming and supporting the hollow bore of the elongated member. The rod means is positioned at a predetermined orientation with respect to the bore forming means so that the hollow elongated member receives a plurality of apertures therein at a predetermined position, orientation and dimension.

Abstract: A device is disclosed comprising a stretchable cylindrical net-like structure and at least one guide ring for partial placement over a fetus. The cylindrical net-like structure is formed such that as force is applied along its longitudinal axis, the length of the cylindrical structure is increased while the diameter of such cylindrical structure is decreased. The guide ring is expandable for passage therethrough of the fetal head and has an at rest diameter between that of the fetal neck and the fetal head.