| 摘要 |
A small diameter laser powered surgical instrument usable in ophthalmology employs laser pulses which impinge on a target material made of titanium or zirconium or alloys thereof. These target materials create a plasma when subjected to the laser pulses. This plasma creates shockwaves that are transmitted through a saline media within a chamber at the distal end of the instrument to a port where the shockwaves impinge upon tissue held at the port. The shockwaves fracture tissue which is then aspirated out of an aspirating passageway.
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