Blades with functional balance asymmetries for use with ultrasonic surgical instruments
First Claim
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1. An ultrasonic clamp coagulator apparatus comprising:
- an ultrasonic waveguide having a blade extending distally from said distal end of said waveguide; and
said blade having an ultrasonically actuated motion in substantially a single plane of motion and comprises a curved treatment portion defining a plane of asymmetry perpendicular to the plane of motion and a balance portion including at least one balance asymmetry, wherein the balance asymmetry is positioned to counter motion of the blade in a plane orthogonal to the single actuation plane of motion.
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Abstract
Disclosed is an ultrasonic surgical instrument that includes a blade end-effector having a curved geometry. The curved geometry creates a curved surface with multiple asymmetries causing multiple imbalances within the blade. Imbalance due to the asymmetries of the blade is corrected by the appropriate selection of the volume and location of material removed from a functional asymmetry.
97 Citations
10 Claims
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1. An ultrasonic clamp coagulator apparatus comprising:
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an ultrasonic waveguide having a blade extending distally from said distal end of said waveguide; and said blade having an ultrasonically actuated motion in substantially a single plane of motion and comprises a curved treatment portion defining a plane of asymmetry perpendicular to the plane of motion and a balance portion including at least one balance asymmetry, wherein the balance asymmetry is positioned to counter motion of the blade in a plane orthogonal to the single actuation plane of motion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification