Powered surgical instrument
A surgical instrument including a housing, an endoscopic portion, a shaft portion and an end effector is disclosed. The endoscopic portion extends distally from the housing and defines a longitudinal axis. The shaft portion is selectively connectable to a distal end of the endoscopic portion. The end effector is selectively connectable to a distal end of the shaft portion.
1. A surgical instrument, comprising:
a housing;
a drive gear disposed at least partially within the housing, the drive gear rotatable about a drive gear axis extending therethrough and being selectively movable along the drive gear axis;
a drive motor including a drive motor shaft extending distally therefrom, the drive motor shaft being mechanically engaged with the drive gear and being configured to rotate the drive gear; and
a shift motor disposed in mechanical cooperation with the drive gear and configured to move the drive gear along the drive gear axis.
2. The surgical instrument of claim 1 , further including an end effector disposed in mechanical cooperation with the drive gear.
3. The surgical instrument of claim 2 , wherein the shift motor is configured to move the drive motor along the drive gear axis.
4. The surgical instrument of claim 3 , further including a shift sensor associated with the shift motor and arranged to determine the position of the drive gear.
5. The surgical instrument of claim 4 , wherein the shift sensor is arranged to determine the longitudinal position of the drive motor.
6. The surgical instrument of claim 2 , wherein the housing includes a screen for displaying information concerning a status of the surgical instrument.
7. The surgical instrument of claim 6 , wherein the screen is a touch screen.
8. The surgical instrument of claim 2 , further including at least one switch for controlling the surgical instrument.
9. The surgical instrument of claim 2 , further including a shift screw, the shift motor driving the shift screw to move the drive gear along the drive gear axis.
10. The surgical instrument of claim 9 , further comprising a screw housing, the shift screw being in engagement with the screw housing for moving the screw housing longitudinally.
11. The surgical instrument of claim 2 , wherein information from the shift sensor is communicated to a screen associated with the surgical instrument.
12. The surgical instrument of claim 11 , wherein the status of the shift motor is communicated to a screen associated with the surgical instrument.
13. The surgical instrument of claim 4 , wherein the shift sensor communicates with at least one switch to start or stop the shift motor.
14. The surgical instrument of claim 4 , further including a position lock for engaging the drive motor in one of a plurality of positions.
15. The surgical instrument of claim 14 , wherein the shift sensor interacts with the position lock to determine the status of the shift motor.