Actuation mechanisms and load adjustment assemblies for surgical instruments
First Claim
1. An ultrasonic surgical instrument, comprising:
- a shaft assembly, comprising;
an inner tube defining a longitudinal axis, the inner tube comprising a first alignment feature; and
an outer tube extending along the longitudinal axis, wherein the outer tube at least partially surrounds the inner tube;
an ultrasonic transducer assembly comprising an ultrasonic transducer; and
an end effector assembly, comprising;
an ultrasonic blade comprising a second alignment feature, wherein the ultrasonic blade is acoustically coupled to the ultrasonic transducer, wherein the ultrasonic blade extends through the inner tube, and wherein the first alignment feature is aligned with the second alignment feature, and wherein the first alignment feature is configured to engage the second alignment feature in an assembled configuration; and
a clamp member pivotably movable between an open configuration and an approximated configuration relative to the ultrasonic blade, wherein the clamp member is pivotably coupled to the outer tube, and wherein relative movement between the outer tube and the inner tube transitions the clamp member between the open configuration and the approximated configuration.
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Accused Products
Abstract
An ultrasonic surgical instrument includes an inner tube, an outer tube, an ultrasonic blade, and a clamp member pivotably moveable relative to the ultrasonic blade. The ultrasonic blade is acoustically coupled to an ultrasonic transducer. The clamp member pivotably movable relative to the ultrasonic blade between an open configuration and an approximated configuration with respect to the ultrasonic blade, wherein the clamp member is pivotably coupled to the inner tube, wherein the clamp member is pivotably coupled to the outer tube, and wherein movement of the outer tube relative to the inner tube between the first position and the second position transitions the clamp member between the open configuration and the approximate configuration.
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Citations
12 Claims
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1. An ultrasonic surgical instrument, comprising:
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a shaft assembly, comprising; an inner tube defining a longitudinal axis, the inner tube comprising a first alignment feature; and an outer tube extending along the longitudinal axis, wherein the outer tube at least partially surrounds the inner tube; an ultrasonic transducer assembly comprising an ultrasonic transducer; and an end effector assembly, comprising; an ultrasonic blade comprising a second alignment feature, wherein the ultrasonic blade is acoustically coupled to the ultrasonic transducer, wherein the ultrasonic blade extends through the inner tube, and wherein the first alignment feature is aligned with the second alignment feature, and wherein the first alignment feature is configured to engage the second alignment feature in an assembled configuration; and a clamp member pivotably movable between an open configuration and an approximated configuration relative to the ultrasonic blade, wherein the clamp member is pivotably coupled to the outer tube, and wherein relative movement between the outer tube and the inner tube transitions the clamp member between the open configuration and the approximated configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An ultrasonic surgical instrument, comprising:
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a shaft assembly, comprising; an inner tube defining a longitudinal axis, the inner tube comprising a first alignment feature; and an outer tube extending along the longitudinal axis, wherein the outer tube at least partially surrounds the inner tube; an ultrasonic transducer assembly comprising an ultrasonic transducer; an end effector assembly, comprising; an ultrasonic blade comprising a second alignment feature, wherein the ultrasonic blade is acoustically coupled to the ultrasonic transducer, wherein the ultrasonic blade extends through the inner tube, and wherein the first alignment feature is aligned with the second alignment feature; and a clamp member pivotably movable between an open configuration and an approximated configuration relative to the ultrasonic blade, wherein the clamp member is pivotably coupled to the outer tube, and wherein relative movement between the outer tube and the inner tube transitions the clamp member between the open configuration and the approximated configuration; and wherein the first alignment feature comprises a first flat section, wherein the second alignment feature comprises a second flat section corresponding to the first flat section, and wherein the clamp member is actuatable to generate a clamping force, and wherein the clamping force is substantially perpendicular to a plane defined by the second flat section.
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10. An ultrasonic surgical instrument, comprising:
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a shaft assembly, comprising; an inner tube defining a longitudinal axis, the inner tube comprising a first alignment feature; and an outer tube extending along the longitudinal axis, wherein the outer tube at least partially surrounds the inner tube; an ultrasonic transducer assembly comprising an ultrasonic transducer; an end effector assembly, comprising; an ultrasonic blade comprising a second alignment feature, wherein the ultrasonic blade is acoustically coupled to the ultrasonic transducer, wherein the ultrasonic blade extends through the inner tube, and wherein the first alignment feature is aligned with the second alignment feature; and a clamp member pivotably movable between an open configuration and an approximated configuration relative to the ultrasonic blade, wherein the clamp member is pivotably coupled to the outer tube, and wherein relative movement between the outer tube and the inner tube transitions the clamp member between the open configuration and the approximated configuration; and wherein the second alignment feature comprises a slot, and wherein the first alignment feature comprises a constraining member configured to be received in the slot. - View Dependent Claims (11)
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12. An ultrasonic surgical instrument, comprising:
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a shaft assembly, comprising; an inner tube defining a longitudinal axis, the inner tube comprising a first alignment feature; and an outer tube extending along the longitudinal axis, wherein the outer tube at least partially surrounds the inner tube; an ultrasonic transducer assembly comprising an ultrasonic transducer; an end effector assembly, comprising; an ultrasonic blade comprising a second alignment feature, wherein the ultrasonic blade is acoustically coupled to the ultrasonic transducer, wherein the ultrasonic blade extends through the inner tube, and wherein the first alignment feature is aligned with the second alignment feature; and a clamp member pivotably movable between an open configuration and an approximated configuration relative to the ultrasonic blade, wherein the clamp member is pivotably coupled to the outer tube, and wherein relative movement between the outer tube and the inner tube transitions the clamp member between the open configuration and the approximated configuration; and wherein the second alignment feature comprises a slot, wherein the first alignment feature comprises a constraining member configured to be received in the slot, wherein the inner tube comprises a wall including a side opening, and wherein the constraining member is received by the slot through the side opening, and wherein the constraining member is fixedly attached to the wall at the side opening.
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Specification