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US 7,600,405 B2Granted
Microsurgical probe
AssigneeAlcon Inc.
InventorsRobert S. Maurer, Jr., Brian D. Burkman, Randall R. Martin, Dale E. Ketner, Jr.
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Abstract
Microsurgical probes having a distal tip with a flat outer surface and a flat inner surface, and methods of forming such probes, are disclosed.
Claims1
A method of forming a vitrectomy probe, comprising;
- disposing a tubular needle within a collet;
- rotating said collet and said needle at high speed;
- providing a tool having a generally flat distal surface with a convex spherical projection extending from said generally flat distal surface;
- contacting an edge of a distal end of said needle with said convex, spherical projection;
- and
- moving said tool across said distal end of said needle from said edge to slightly past a centerline of said needle so that said distal end of said needle is formed into a closed distal tip having a flat outer surface and a flat inner surface.
3 more elements
Dependencies are inferred from the claim text.