| 摘要 |
<p>PURPOSE: To provide a device such that a constriction can be enlarged easily and surely without problems by improving a device for enlarging a constriction in the artery, urethra, bile duct, or similar constrictions in a body cavity part. CONSTITUTION: This device is provided with an endoprosthesis 1 made of a shape memory alloy and having an outer contour in the form of an almost cylindrical circumferential wall, a lock member 2 surrounding the endoprosthesis 1 and radically coupled to the endoprosthesis 1, and an applicator 3 for the endoprosthesis 1.</p> |
