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US 11,304,719 B2Granted
Ultrasonic dissector and sealer
AssigneeCovidien LP
InventorsDavid J. Van Tol, Anthony B. Ross, Robert B. Stoddard
Life of this patent
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Abstract
A method for ultrasonically treating tissue includes accessing a surgical site with an ultrasonic surgical instrument, dissecting tissue with a first portion of the blade, and sealing tissue with a second portion of the blade. The instrument includes a blade that defines a longitudinal axis. The blade is configured to oscillate along the longitudinal axis to ultrasonically treat tissue.
Claims10
A tool assembly comprising:
- an ultrasonic blade defining a longitudinal axis and including a proximal portion and a distal portion, the distal portion including:
- a top surface configured to seal tissue;
- a bottom surface having a notch defined therein, the notch first planar surface and a second planar surface that are in contact with each other and extend from the bottom surface towards the top surface, at least one of the first planar surface or the second planar surface configured to dissect tissue;
- and
- side segments extending between the top and bottom surfaces;
- and
- a jaw member configured to move relative to the ultrasonic blade and to contact the top surface.
4 more elements
An ultrasonic surgical instrument, comprising:
- a handle assembly;
- an elongated body extending distally from the handle assembly, the elongated body defining a longitudinal axis and including a waveguide;
- and
- a tool assembly including a blade having a proximal portion and a distal portion, the proximal portion coupled to a distal end of the waveguide, the distal portion including:
- a top surface configured to seal tissue;
- a bottom surface having a notch defined therein, the notch first planar surface and a second planar surface that are in contact with each other and extend from the bottom surface towards the top surface, at least one of the first planar surface or the second planar surface configured to dissect tissue;
- and
- side segments extending between the top and bottom surfaces.
5 more elements
Dependencies are inferred from the claim text.