Method of producing tapered or pointed cannula

Details Method of producing tapered or pointed cannula Method of producing tapered or pointed cannula

2006-07-18

2006-07-18

Tolan, Ed (Department: 3725)

Metal deforming

With temperature modification of tool or of specified...

Distinct temperature modifications at distinct locations of...

C072S342100, C072S302000, C219S059100, C225S002000, C604S264000

Reexamination Certificate

active

07076987

ABSTRACT:
A method of producing a tubular device is provided. The method comprises providing a tubular stock having an axial passage, heating the tubular stock at a first heating location to form a softened section, the softened section separating a workpiece portion of the tubular stock from a remaining portion of the tubular stock, and drawing the workpiece portion away from the remaining portion to elongate the softened section and separate the workpiece portion from the remaining portion to form the tubular device. The drawing is performed at a rate such that the tubular device has an axial passage having a substantially uniform inside diameter, and an end of the tubular device formed from the elongated softened section is tapered.

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