| 摘要 |
<p>Cardiac laser surgery apparatus (10) includes a CO2 laser, and a laser delivery system (18, 20) for delivering laser pulses from the laser to patient's heart. Also inclosed are mirror adjustment devices for remotely adjusting mirrors (48) sealed inside a laser housing; an RF power supply used to both preionize the laser gas, and to fire the laser by providing RF voltage pulses of longer duration than the prionizing RF voltage pulses; attaching laser optics to an integral fin along extruded laser housing; optical elements receiving a rectangular laser beam and converting it to square laser beam of the desired dimensions; nonconductive spacers (60) each connecting one or electrode to the other (56, 58) in the laser chamber (22); barbed inserts (64) in the electrodes that connect inductors to the electrodes; a plurality of resilient contact elements (62) extending along a bottom of an electrode and supported on an internal ledge structure of the housing to provide good electrical connection between the electrode and the housing.</p> |
