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US 2003/0111448 A1Published application
Method of forming chamfered blind holes in surgical needles using a diode pumped nd-yag laser
AssigneeEthicon, Inc.
InventorReza K. Mosavi
Life of this patent
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Abstract
A method of laser drilling surgical needles. The method utilizes a diode pulsed laser to produce a laser beam consisting of a train of high energy pulses. The method produces laser drilled chamfered blind bore holes in surgical needles.
Claims8
A method of laser drilling surgical needles, the method comprising the steps of:
- providing a diode pulsed laser Nd-YAG drilling system;
- providing a surgical needle having a proximal end, a distal end, and a proximal end face:
- producing a first beam of laser pulses having sufficient power to effectively drill a chamfer cavity in the proximal end of the surgical needle through the proximal end face;
- directing the first beam of laser pulses onto the proximal end face of the proximal end of a surgical needle to produce a chamfer cavity having a distal bottom;
- producing a second beam of laser pulses having sufficient power to effectively drill a blind bore hole in the proximal end of the surgical needle;
- directing the second beam of laser pulses onto the distal bottom of the chamfer cavity to produce a chamfer cavity having a distal bottom, wherein said blind bore hole is in communication with the chamfer cavity.
3 more elements
Dependencies are inferred from the claim text.