Patent ID: 7311678

Claim:
Pulsator apparatus for applying pressure-pulses to the outer surface of a body, particularly useful in pressure-pulse therapy, comprising: an enclosure open at one end and having a longitudinal axis extending through said open end; a pressure-pulse source within said enclosure, at the end thereof opposite to said open end, to generate primary pressure pulses; a flexible diaphragm enclosing said open end of the enclosure and adapted to be brought into contact with the surface of the body to receive the pressure pulses; a liquid pulse-transmitting medium between said pressure-pulse source and said flexible diaphragm; and an acoustical coupling member located with respect to said pressure-pulse source and said liquid pulse-transmitting medium so as to be effective to convert said primary pressure pulses to composite pressure pulses propagated outwardly of said flexible diaphragm in the direction of said longitudinal axis of the enclosure, each of said composite pressure pulses including a non-focussed portion, and at least one focussed portion focussed to a focal point within said non-focussed portion and outwardly of said flexible diaphragm.