Housing arrangements for ultrasonic surgical instruments
First Claim
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1. A surgical instrument, comprising:
- a transducer configured to produce vibrations, wherein said transducer comprises;
at least one piezoelectric element; and
a transducer housing at least partially surrounding said at least one piezoelectric element;
an end effector operably coupled to said transducer, wherein said transducer is configured to produce a standing wave of vibrations in said transducer and said end effector, and wherein said standing wave comprises a node and an anti-node; and
an end effector housing at least partially surrounding said end effector, wherein said end effector housing is mounted to said end effector near said node, and wherein said transducer housing is mounted to said end effector housing.
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Abstract
In one general aspect, various embodiments are directed to an ultrasonic surgical instrument that comprises a transducer configured to produce vibrations along a longitudinal axis at a predetermined frequency. In various embodiments, an ultrasonic blade extends along the longitudinal axis and is coupled to the transducer. In various embodiments, the ultrasonic blade includes a body having a proximal end and a distal end, wherein the distal end is movable relative to the longitudinal axis by the vibrations produced by the transducer.
877 Citations
20 Claims
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1. A surgical instrument, comprising:
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a transducer configured to produce vibrations, wherein said transducer comprises; at least one piezoelectric element; and a transducer housing at least partially surrounding said at least one piezoelectric element; an end effector operably coupled to said transducer, wherein said transducer is configured to produce a standing wave of vibrations in said transducer and said end effector, and wherein said standing wave comprises a node and an anti-node; and an end effector housing at least partially surrounding said end effector, wherein said end effector housing is mounted to said end effector near said node, and wherein said transducer housing is mounted to said end effector housing. - View Dependent Claims (2, 3, 4)
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5. A surgical instrument, comprising:
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a transducer configured to produce a standing wave of vibrations, wherein said standing wave of vibrations comprises a node and an anti-node; a waveguide operably coupled to said transducer; an end effector operably coupled to said waveguide, wherein said transducer is configured to transmit said standing wave of vibrations through said waveguide to said end effector; a sheath at least partially surrounding said waveguide, wherein said waveguide is supported within said sheath near said node; and a transducer housing connected to said sheath, wherein said transducer is configured to float within said transducer housing. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A surgical instrument, comprising:
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a transducer configured to produce a standing wave of vibrations, wherein said standing wave of vibrations comprises a node and an anti-node, and wherein said transducer comprises at least one piezoelectric element; a waveguide operably coupled to said transducer; an end effector extending from said waveguide, wherein said transducer is configured to produce a standing wave of vibrations in said transducer, said waveguide and said end effector; and a housing, comprising; a first housing portion, wherein said waveguide is supported within said first housing portion near said node; and a second housing portion, wherein said at least one piezoelectric element is configured to float within said second housing portion. - View Dependent Claims (18, 19, 20)
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Specification