SHOCK WAVE FOCUSING DEVICE, SHOCK WAVE GENERATION APPARATUS, AND SHOCK WAVE ABLATION SYSTEM

摘要

Provided is a shock wave focusing device for a shock wave ablation system for coagulating and necrosing cardiac muscle tissue that becomes a cause of arrhythmia. A shock wave generation apparatus (10) comprises: a shock wave focusing device (11) which has a concave surface (11a); an optical fiber (12) which is inserted into the shock wave focusing device (11); a tubular catheter (13) which guides the optical fiber; an enclosure (14) which constitutes a space to be filled with liquid at the tip of the optical fiber (12); and the liquid (L) which is filled into the enclosure (14). The shock wave focusing device (11) is configured from a ring-shaped coupling part (16) provided with a central hole (11b), and 16 blade parts (17) curved outward from the edge of the coupling part (16) toward the front and provided elastically to the edge of the coupling part (16), and can be folded by rotating the blade parts (17) with respect to the coupling part (16).

主权项

1. A shock wave focusing device for shock wave generating device, having a shape in which a curved surface rotating body is cut by a flat plane, and having a concave surface with a central hole formed on the axis of the curved surface rotating body for inserting an optical fiber, where a tip of the optical fiber is set on the axis of the curved surface rotating body in a cavity of the concave surface, and a shock wave generated on the tip of the optical fiber is then reflected by the concave surface and focused to outside of the cavity of the concave surface, comprising;
a coupling portion provided with the central hole, and blade portions extended radially from the coupling portion and curved outwardly toward a front, wherein an inner surface of blade portions which is set in a predetermined angle against the center axis of the coupling portion forms the concave surface.