| 摘要 |
A vitrectomy probe has a disposable tip portion and a reusable hand piece portion. The disposable tip portion has a shaft terminating in a blade and a sleeve with an opening. The shaft is slideably disposed within the sleeve and capable of reciprocating in the sleeve. The reusable hand piece has a channel for receiving the shaft, first and second coils for driving the shaft in a reciprocating fashion, and a housing enclosing the channel and the first and second coils. The first and second coils are alternately energized to drive the shaft in a reciprocating fashion. |
