Multiple end effectors ultrasonic surgical instruments
First Claim
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1. A surgical instrument, comprising:
- a transducer defining a longitudinal axis, the transducer comprising a first end and a second end, the transducer further comprising;
a transduction portion disposed along the longitudinal axis and comprising a first end and a second end, the transduction portion configured to produce vibration in a first direction along the longitudinal axis at a predetermined frequency, the transduction portion configured to produce vibrations in a second direction along the longitudinal axis at the predetermined frequency, wherein the second direction is substantially opposite the first direction;
a first resonator portion disposed along the longitudinal axis and configured to receive ultrasonic vibration in the first direction from the first end of the transduction portion, the first resonator portion comprising a first end coupled to the first end of the transduction portion and a second end adapted to receive the first ultrasonic transmission waveguide;
a first ultrasonic transmission waveguide disposed along the longitudinal axis and configured to receive ultrasonic vibrations in the first direction from the second end of the first resonator portion, the first ultrasonic transmission waveguide comprising a first end coupled to the second end of the first resonator portion;
a first deployable ultrasonic end effector disposed along the longitudinal axis coupled to a second end of the first ultrasonic transmission waveguide;
a second resonator portion disposed along the longitudinal axis and configured to receive ultrasonic vibration in the second direction from the second end of the transduction portion, the second resonator portion comprising a first end coupled to the second end of the transduction portion and a second end adapted to receive a second ultrasonic transmission waveguide;
a second ultrasonic transmission waveguide disposed along the longitudinal axis and configured to receive ultrasonic vibrations in the second direction from the second end of the second resonator portion, the second ultrasonic transmission waveguide comprising a first end coupled to the second end of the second resonator portion;
a second deployable ultrasonic end effector disposed along the longitudinal axis coupled to a second end of the second ultrasonic transmission waveguide;
wherein, when the first resonator portion receives ultrasonic vibrations in the first direction, the second resonator portion receives ultrasonic vibrations in the second direction;
wherein, when one of the deployable ultrasonic end effectors is deployed, the other deployable ultrasonic end effector is non-deployed to prevent contact with unwanted objects; and
wherein, when the deployed deployable ultrasonic end effector is loaded by tissue the non-deployed deployable ultrasonic end effector is unloaded by tissue and consumes less power and generates less heat than the deployed ultrasonic end effector.
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Abstract
A surgical instrument includes a transducer configured to produce vibrations along a longitudinal axis at a predetermined frequency. The transducer includes a first end and a second end. A first resonator portion includes a first end coupled to the first end of the transducer. The first resonator includes a second end adapted to receive a first ultrasonic transmission waveguide. A second resonator portion includes a first end coupled to the second end of the transducer. The second resonator includes a second end adapted to receive a second ultrasonic transmission waveguide.
611 Citations
9 Claims
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1. A surgical instrument, comprising:
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a transducer defining a longitudinal axis, the transducer comprising a first end and a second end, the transducer further comprising; a transduction portion disposed along the longitudinal axis and comprising a first end and a second end, the transduction portion configured to produce vibration in a first direction along the longitudinal axis at a predetermined frequency, the transduction portion configured to produce vibrations in a second direction along the longitudinal axis at the predetermined frequency, wherein the second direction is substantially opposite the first direction; a first resonator portion disposed along the longitudinal axis and configured to receive ultrasonic vibration in the first direction from the first end of the transduction portion, the first resonator portion comprising a first end coupled to the first end of the transduction portion and a second end adapted to receive the first ultrasonic transmission waveguide; a first ultrasonic transmission waveguide disposed along the longitudinal axis and configured to receive ultrasonic vibrations in the first direction from the second end of the first resonator portion, the first ultrasonic transmission waveguide comprising a first end coupled to the second end of the first resonator portion; a first deployable ultrasonic end effector disposed along the longitudinal axis coupled to a second end of the first ultrasonic transmission waveguide; a second resonator portion disposed along the longitudinal axis and configured to receive ultrasonic vibration in the second direction from the second end of the transduction portion, the second resonator portion comprising a first end coupled to the second end of the transduction portion and a second end adapted to receive a second ultrasonic transmission waveguide; a second ultrasonic transmission waveguide disposed along the longitudinal axis and configured to receive ultrasonic vibrations in the second direction from the second end of the second resonator portion, the second ultrasonic transmission waveguide comprising a first end coupled to the second end of the second resonator portion; a second deployable ultrasonic end effector disposed along the longitudinal axis coupled to a second end of the second ultrasonic transmission waveguide; wherein, when the first resonator portion receives ultrasonic vibrations in the first direction, the second resonator portion receives ultrasonic vibrations in the second direction; wherein, when one of the deployable ultrasonic end effectors is deployed, the other deployable ultrasonic end effector is non-deployed to prevent contact with unwanted objects; and wherein, when the deployed deployable ultrasonic end effector is loaded by tissue the non-deployed deployable ultrasonic end effector is unloaded by tissue and consumes less power and generates less heat than the deployed ultrasonic end effector. - View Dependent Claims (2, 3, 4, 5)
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6. A surgical system, comprising:
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a transducer housing; a transducer coupled to the ultrasonic signal generator, the transducer defining a longitudinal axis, the transducer comprising a first end, a second end, a transduction portion, a first resonator portion, and a second resonator portion; the transduction portion disposed along the longitudinal axis and comprising a first end, a plurality of piezoelectric elements arranged in a stack to form a piezoelectric stack, and a second end, the piezoelectric stack comprising a bore through which a coupling member extends, the piezoelectric stack configured to produce vibrations in a first direction and a second direction along the longitudinal axis at a predetermined frequency, wherein the second direction is substantially opposite to the first direction, and the transduction portion mounted to the transducer housing by at least two flanges; the first resonator portion disposed along the longitudinal axis and configured to receive ultrasonic vibration in the first direction from the first end of the transduction portion; the first ultrasonic transmission waveguide comprising a first end coupled to the second end of the first resonator portion; the second resonator portion disposed along the longitudinal axis and configured to receive ultrasonic vibrations in the second direction from the second end of the transduction portion;
the second resonator portion comprises a first end coupled to the coupling member at the second end of the transduction portion and a second end adapted to receive a second ultrasonic transmission waveguide; anda second ultrasonic transmission waveguide disposed along the longitudinal axis and configured to receive ultrasonic vibrations in the second direction from the second end of the second resonator portion, the second ultrasonic transmission waveguide comprising a first end coupled to the second end of the second resonator portion; wherein, when one resonator portion receives ultrasonic vibrations in the first direction, the other resonator portion receives ultrasonic vibrations in the second direction. - View Dependent Claims (7, 8)
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9. A surgical instrument, comprising:
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a transducer defining a longitudinal axis, the transducer comprising a first end and a second end, the transducer further comprising; a transduction portion disposed along the longitudinal axis and comprising a first end and a second end, the transduction portion configured to produce vibrations in a first direction along the longitudinal axis at a predetermined frequency, the transduction portion configured to produce vibrations in a second direction along the longitudinal axis at the predetermined frequency, the second direction substantially opposite to the first direction; a first resonator portion disposed along the longitudinal axis and configured to receive ultrasonic vibration in the first direction from the first end of the transduction portion, the first resonator portion comprising a first end coupled to the first end of the transduction portion and a second end adapted to receive a first ultrasonic transmission waveguide; a first ultrasonic transmission waveguide disposed along the longitudinal axis and configured to receive ultrasonic vibrations in the first direction from the second end of the first resonator portion, the first ultrasonic transmission waveguide comprising a first end coupled to the second end of the first resonator portion; a first deployable ultrasonic end effector disposed along the longitudinal axis coupled to a second end of the first ultrasonic transmission waveguide, the first deployable ultrasonic end effector movable from a deployed position to a non-deployed position; a second resonator portion disposed along the longitudinal axis and configured to receive ultrasonic vibration in the second direction from the second end of the transduction portion, the second resonator portion comprising a first end coupled to the second end of the transduction portion and a second end adapted to receive a second ultrasonic transmission waveguide; a second ultrasonic transmission waveguide disposed along the longitudinal axis and configured to receive ultrasonic vibrations in the second direction from the second end of the second resonator portion, the second ultrasonic transmission waveguide comprising a first end coupled to the second end of the second resonator portion; a second deployable ultrasonic end effector disposed along the longitudinal axis coupled to a second end of the second ultrasonic transmission waveguide, the second deployable ultrasonic end effector movable from a deployed position to a non-deployed position; wherein, when the first resonator portion receives ultrasonic vibrations in the first direction, the second resonator portion receives ultrasonic vibrations in the second direction; wherein, when one of the deployable ultrasonic end effectors is deployed, the other deployable ultrasonic end effector is non-deployed to prevent contact with unwanted objects; and wherein, when the deployed deployable ultrasonic end effector is loaded by tissue the non-deployed deployable ultrasonic end effector is unloaded by tissue and consumes less power and generates less heat than the deployed ultrasonic end effector.
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Specification