Patent ID: 8529451
Filing Date: 2013-09-10
Classification: A61B

Abstract:
1. A spacer for positioning between a patient and the lens of a focused shock wave applicator, the spacer comprises; a membrane being in the form of a bag-like structure or housing adapted to be filled with a fluid, the membrane or housing being devoid of any air or gasses, and when filled forms a spacer volume for passing acoustic shock waves at low impedance, wherein the space between the lens and the tissue is varied by the amount of fluid in the membrane and the wave pattern passing from the lens of the shock wave applicator enters through an oil or gel coated layer on the bag-like structure or housing and the lens as converging to a focus inside the membrane and exits through the opposite side of the membrane through an oil or gel coated layer on the bag like structure or housing coupled to the tissue in a diverging wave form into the tissue to be treated, the membrane being a spacer positioned separate from but adjacent to the shock wave applicator between a lens of the shock wave applicator and the patient.