Surgical devices and systems with rotating end effector assemblies having an ultrasonic blade
Surgical devices and systems having rotating end effector assemblies for treating tissue are provided. Methods for using the same are also provided.
1. A surgical device, comprising:
an instrument shaft;
a waveguide extending through the instrument shaft;
a rotation assembly having an inner sleeve; and
an end effector assembly at a distal end of the instrument shaft, the end effector assembly having a clamping element that is coupled to the inner sleeve and an ultrasonic blade that is in acoustic communication with the waveguide, the inner sleeve having a sliding mechanism that is configured to selectively rotate the clamping element relative to the ultrasonic blade;
a first locking assembly having a first plurality of teeth that extend circumferentially around a proximal end of the inner sleeve and a first spring arm configured to engage the first plurality of teeth to thereby prevent the inner sleeve from rotating in the first direction; and
a second locking assembly having a second plurality of teeth that extend circumferentially around the proximal end of the inner sleeve and a second spring arm configured to engage the second plurality of teeth to thereby prevent the inner sleeve from rotating in second direction that is different than the first direction.
2. The device of claim 1 , further comprising an ultrasonic transducer, wherein the waveguide is acoustically coupled with the ultrasonic transducer.
3. The device of claim 1 , further comprising a clamping assembly that is coupled to the clamping element and configured to selectively move the clamping element towards and away from the ultrasonic blade.
4. The device of claim 1 , wherein the instrument shaft has an articulable region and a non-articulable region.
5. The device of claim 4 , further comprising an articulation means for deflecting the end effector assembly from a position aligned with a longitudinal axis, wherein the longitudinal axis extends along the non-articulable section of the instrument shaft.
6. The device of claim 1 , further comprising a handle housing having the instrument shaft extending therefrom.
7. The device of claim 1 , further comprising an instrument housing that is configured to be mounted to an electromechanical arm, wherein the instrument shaft extends from the instrument housing.
8. The device of claim 1 , further comprising a rotation assembly comprising a pin plate and an actuator rod, and wherein the pin plate has one or more pins extending radially outward therefrom and configured to slide within a plurality of channels defined in the inner sleeve in response to axial translation of an actuator rod relative to the instrument shaft.
9. The device of claim 8 , wherein the pin plate a first unlock arm configured to interact with the first spring arm and a second unlock arm configured to interact with the second spring arm so as to disengage one of the first or second locking assemblies to allow the inner sleeve to rotate in the first direction or the second direction.
10. The device of claim 9 , where the first unlock arm and the second unlock arm are offset from each other and extend from opposing sides of the pin pate.
11. A surgical device, comprising:
a housing having an ultrasonic transducer disposed therein;
an instrument shaft extending from the housing, the instrument shaft having an inner sleeve and outer sleeve;
a flexible waveguide extending through the instrument shaft;
an end effector assembly at a distal end of the instrument shaft, the end effector assembly having a jaw and an ultrasonic blade, the ultrasonic blade being is coupled to the waveguide;
an articulation assembly having an articulation member that is coupled to the instrument shaft, the articulation assembly configured to selectively articulate a distal portion of the instrument shaft to cause the end effector assembly to move between an unarticulated condition and an articulated condition; and
at least one locking assembly for selectively allowing the inner sleeve to rotate in a first direction or a second direction relative to the outer sleeve of the instrument shaft while the end effector assembly is in the unarticulated condition or the articulated condition, wherein the at least one locking assembly comprises at least one ratchet-like mechanism.
12. The device of claim 11 , wherein the articulation assembly is further configured to selectively articulate the distal portion of the instrument shaft to cause the end effector assembly to move between a plurality of articulated conditions.
13. The device of claim 11 , wherein the articulation member is further coupled to at least one actuator rod that extends through the instrument shaft.
14. The device of claim 11 , further comprising a rotation means that comprises an inner sleeve having a plurality of channels defined therein and one or more pins configured to selectively slide within the channels to thereby cause rotation of the jaw about the ultrasonic blade.
15. The device of claim 11 , further comprising an electromechanical arm having a motor disposed therein, wherein the housing is mounted to the electromechanical arm.
16. The device of claim 11 , wherein the instrument shaft includes a clamping assembly coupled to the end effector assembly, the clamping assembly being configured to drive movement of the jaw relative to the instrument shaft such that the jaw selectively moves towards and away from the ultrasonic blade.