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US 2019/0290318 A1Published application
Surgical devices and systems with rotating end effector assemblies having an ultrasonic blade
AssigneeEthicon, Inc.
InventorChad P. Boudreaux
Life of this patent
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Abstract
Surgical devices and systems having rotating end effector assemblies for treating tissue are provided. Methods for using the same are also provided.
Claims21
A surgical device, comprising:
- a housing;
- an instrument shaft extending from the housing, the instrument shaft including an outer sleeve having an articulable region and a non-articulable region, the instrument shaft further including,
- a waveguide that is acoustically coupled to an ultrasonic transducer, wherein a portion of the articulable region is aligned with a flexible portion of the waveguide, and
- a rotation assembly having an inner sleeve;
- and
- an end effector assembly at a distal end of the outer sleeve, the end effector assembly having a clamping element and an ultrasonic blade that is in acoustic communication with the waveguide,
- wherein the inner sleeve is coupled to the clamping element, the inner sleeve having a sliding mechanism that is configured to selectively rotate the clamping element relative to the ultrasonic blade, the sliding mechanism having a predetermined pattern of projections that project radially outward from the inner sleeve to form channels therebetween and one or more pins that are configured to selectively slide within the channels upon a force applied to an input operatively coupled to the one or more pins to thereby cause rotation of the clamping element.
4 more elements
-3. (canceled)
A robotic surgical system, comprising:
- an electromechanical arm having a motor disposed therein;
- an instrument housing mounted to the electromechanical arm;
- an instrument shaft extending from the housing, the instrument shaft including an outer sleeve and further including,
- an articulable ultrasonic waveguide acoustically coupled to an ultrasonic transducer and extending through the instrument shaft,
- an actuation assembly having a first actuator rod that is operably coupled to the motor, and
- a rotation assembly having an inner sleeve that includes a predetermined pattern of projections that project radially outward from the inner sleeve to form channels therebetween and one or more pins coupled to a distal end of the first actuator rod;
- and
- an end effector assembly formed at a distal end of the outer sleeve, the end effector assembly having a jaw and an ultrasonic blade that is acoustically coupled to the articulable ultrasonic waveguide,
- wherein the actuation assembly is operatively coupled to the jaw, and wherein the first actuator rod is configured to axially translate relative to the outer sleeve to slide the one or more pins within the channels to selectively rotate the jaw while the ultrasonic blade remains stationary.
6 more elements
-12. (canceled)
A method, comprising:
- directing a surgical device having an end effector assembly to a surgical site, the end effector assembly operably coupled to an instrument shaft that contains an ultrasonic waveguide and a rotation assembly, the end effector assembly having an ultrasonic blade and a clamping element, the rotation assembly having an inner sleeve that is operatively coupled to the clamping element and includes a predetermined pattern of projections that project radially outward from the inner sleeve to form channels therebetween and one or more pins;
- selectively rotating the clamping element relative to the ultrasonic blade;
- selectively actuating a clamping assembly to cause the clamping element to move towards the ultrasonic blade to and thereby apply a clamping force to tissue disposed between the clamping element and the ultrasonic blade;
- and
- transmitting ultrasonic energy to the ultrasonic blade to treat the tissue clamped between the clamping element and the ultrasonic blade.
2 more elements
Dependencies are inferred from the claim text.