Method for manufacturing small diameter medical devices
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United States of America Patent
Stats
-
Nov 18, 2003
Grant Date -
Sep 12, 2002
app pub date -
Mar 6, 2002
filing date -
Mar 7, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus and method for manufacturing small diameter ultrasonic probes capable of vibrating in a transverse mode that can be used in ultrasonic tissue ablation. The apparatus includes a die, a style puller which is used to engage a functional end of the medical device, and a die room puller which is used to draw the medical device through the die. The die includes a bell-shaped lead-in on a front side of the die and a bell-shaped lead-in on a back side 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 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.
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