Powered surgical instrument
First Claim
1. A surgical instrument, comprising:
- a housing;
an endoscopic portion extending distally from the housing and defining a longitudinal axis;
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;
a shift motor disposed in mechanical cooperation with the drive gear and being configured to move the drive gear along the drive gear axis;
an end effector disposed in mechanical cooperation with the drive gear and being adjacent a distal portion of the endoscopic portion; and
a shift sensor associated with the shift motor and arranged to determine the position of the drive gear;
wherein the shift motor is configured to move the drive motor along the drive gear axis, and wherein the shift sensor is arranged to determine the longitudinal position of the drive motor.
3 Assignments
0 Petitions
Accused Products
Abstract
A surgical instrument including a housing, an endoscopic portion, a drive gear, a drive motor, a shift motor and an end effector is disclosed. The endoscopic portion extends distally from the housing and defines a longitudinal axis. The drive gear is disposed at least partially within the housing and is rotatable about a drive gear axis which extends therethrough. The drive gear is selectively movable along the drive gear axis. The drive motor is disposed in mechanical cooperation with the drive gear and is configured to rotate the drive gear. The shift motor is disposed in mechanical cooperation with the drive gear and is configured to move the drive gear along the drive gear axis. The end effector is disposed adjacent a distal portion of the endoscopic portion.
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Citations
28 Claims
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1. A surgical instrument, comprising:
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a housing; an endoscopic portion extending distally from the housing and defining a longitudinal axis; 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; a shift motor disposed in mechanical cooperation with the drive gear and being configured to move the drive gear along the drive gear axis; an end effector disposed in mechanical cooperation with the drive gear and being adjacent a distal portion of the endoscopic portion; and a shift sensor associated with the shift motor and arranged to determine the position of the drive gear; wherein the shift motor is configured to move the drive motor along the drive gear axis, and wherein the shift sensor is arranged to determine the longitudinal position of the drive motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A surgical instrument, comprising:
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a housing; an endoscopic portion extending distally from the housing and defining a longitudinal axis; 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; a shift motor disposed in mechanical cooperation with the drive gear and being configured to move the drive gear along the drive gear axis; an end effector disposed in mechanical cooperation with the drive gear and being adjacent a distal portion of the endoscopic portion; a shift sensor associated with the shift motor and arranged to determine the position of the drive gear; a position lock for engaging the drive motor in one of a plurality of positions, wherein the position lock is configured for engaging the drive motor in one of a plurality of longitudinally spaced positions; and a drive motor casing at least partially surrounding the drive motor, the drive motor casing including at least three slots therein, wherein each slot is matable with the position lock to maintain the drive gear in a desired longitudinal position. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification