| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a surgical instrument. <P>SOLUTION: The surgical instrument includes: a housing; an elongated shaft that extending distally from the housing and defining a first longitudinal axis; a firing rod disposed in the elongated shaft; a drive mechanism disposed at least partially within the housing, mechanically cooperating with the firing rod; a sensor that senses parameters of light reflected from the surface of the firing rod; and a measurement unit that determines a parameter of the motion of the firing rod based on the sensed parameter of the light reflected from the surface of the firing rod. <P>COPYRIGHT: (C)2011,JPO&INPIT |
