主权项 |
1. A method of laser drilling bore holes in a surgical needle, comprising:
A. providing a percussive laser drilling system, comprising:
a fiber seed laser producing a low power beam;a modulator to receive and pulse the beam;at least one solid state NdYAG amplifier to receive and amplify the pulsed beam, wherein the beam has a peak power of between about 5 kW to about 80 kW; and,focusing optics; B. focusing the pulsed beam from the optics onto a proximal end of a surgical needle; and, C. percussively drilling a bore hole in the proximal end of the surgical needle such that there is effectively no recast or remelt, wherein the M2 value of the focused and pulsed beam ranges from about 2 to about 6, and the focused and pulsed beam has a pulse duration of about 3 to about 30 microseconds. |