| 摘要 |
<p>An apparatus and method for manufacturing small diameter ultrasonic probes (1) capable of vibrating in a transverse mode that can be used in ultrasonic tissue ablation. The apparatus includes a die (20), a syle puller (30) which is used to engage a functional end of the medical device, and a die room puller (40) which is used to draw the medical device through the die. The die (20) includes a bell-shaped lead-in (22) on a front side (24) of the die (20) and a bell-shaped lead-in (23) on a back side (25) of the die allowing for reversal of the direction of the draw. The method of manufacturing includes heat treating a large diameter medical device, drawing the large diameter device through a die (20) and reversing the draw of the medical device through the die to provide a medical device having a varying diameter along a length of the device. The method is repeated until a final diameter is reached.</p> |
