Enhanced dilatation devices are contemplated which incorporation of a number of new features, principally among them an
actuator for producing reciprocating
linear motion in at least the
insertion end of the dilatation device to aid in, automate, and enhance the dilatation and / or sexual stimulatory function of the dilatation device, and a rear rigid arcuate member configured for placement over an
anatomical surface such as the mons pubis or the
perineum, and an expansion region incorporating an expanding
balloon on its inner arcuate face configured to expand against and frictionally engage with the
anatomical surface to assist with retaining the dilatation device in place during use. Such enhanced dilatation devices may be embodied by a new dilatation device, or may be implemented in the form of an optional attachment which may be used to
upgrade an existing dilatation device.