Ultrasonic surgical handpiece with torsional transducer
AssigneeKogent Surgical, LLC
InventorsJohanna Bryan, David Wuchinich
Life of this patent
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Abstract
A surgical handpiece includes a motor that has a torsional transducer assembly along a central axis of the surgical handpiece. The motor is configured for operative connection to a power source. The torsional transducer assembly includes a plurality of torsional transducers. Each torsional transducer has a support band surrounding the torsional transducer. The surgical handpiece includes a surgical attachment that has a first end detachably connected to the motor and a second end defining a working plane for engagement with biological tissue.
Claims25
A surgical handpiece, comprising:
- a motor having a torsional transducer assembly along a central axis of the surgical handpiece, the motor being configured for operative connection to a power source, wherein the torsional transducer assembly comprises a plurality of torsional transducers, each torsional transducer having a support band surrounding the torsional transducer;
- and
- a surgical attachment having a first end detachably connected to the motor and a second end defining a working plane for engagement with biological tissue.
A surgical handpiece, comprising:
- a motor having a torsional transducer assembly along a central axis of the surgical handpiece, the motor being configured for operative connection to a power source, the torsional transducer assembly including a torsional transducer stack having a plurality of torsional transducers stacked end to end, a bolt holding the torsional transducers in the torsional transducer stack, support bands surrounding the corresponding torsional transducers, and a set of electrodes electrically connected to the corresponding torsional transducers;
- and
- a surgical attachment having a first end detachably connected to the motor and a second end defining a working plane, the surgical attachment including an ultrasonic tip at the working plane for engagement with biological tissue.
A surgical handpiece, comprising:
- a plurality of torsional transducers along a central axis of the surgical handpiece, the plurality of torsional transducers being configured for operative connection to a power source;
- support bands surrounding the corresponding torsional transducers to support the corresponding torsional transducers;
- and
- a surgical attachment operably coupled to the plurality of torsional transducers, the surgical attachment having an ultrasonic tip at a working plane for engagement with biological tissue;
- wherein the plurality of torsional transducers are configured to create a standing wave along the central axis in response to the application of an electrical current and voltage from the power source, the standing wave defining an alternating pattern of nodes and anti-nodes along the central axis, wherein a position of one of the anti-nodes along the center axis corresponds with the position of the working plane.
Dependencies are inferred from the claim text.