ULTRASONIC CUTTING TOOL
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Accused Products
Abstract
The ultrasonic surgical tool has an elongate waveguide (1) operatively connected or connectable at a proximal end to a source of ultrasonic vibrations. At a distal end, an operative element comprises a radially-extending ridge (2) defined between a substantially parallel pair of grooves (4) extending longitudinally of the waveguide (1). The operative element is curved in a plane transverse to that of the ridge (2). This arrangement is ergonomically superior and allows a surgeon to work for longer and with improved control. It also allows a clear visualisation of the operative elements of the tool and the target tissue.
832 Citations
20 Claims
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1-10. -10. (canceled)
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11. An ultrasonic surgical tool comprising:
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elongate waveguide means, a source of torsional mode ultrasonic vibrations operatively connected or connectable to a proximal end of said waveguide means, and an operative element adjacent a generally cylindrical distal end of said waveguide means and comprising a radially-extending ridge means defined between a substantially parallel pair of groove means extending longitudinally of the waveguide means from a distal end thereof, said operative element being curved in a plane transverse to that of the ridge means. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. An ultrasonic surgical tool comprising:
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elongate waveguide means, a source of torsional mode ultrasonic vibrations operatively connected or connectable to a proximal end of said waveguide means, an operative element adjacent a generally cylindrical distal end of said waveguide means and comprising a radially-extending ridge means defined between a substantially parallel pair of groove means extending longitudinally of the waveguide means from a distal end thereof, said operative element being curved in a plane transverse to that of the ridge means, and a controllably pivotable non-vibrated jaw mechanism comprising a jaw member with a curvature corresponding with that of the ridge means, the jaw member being operable to be brought down into contact with an upper surface of the ridge means and to trap tissue to be cut and coagulated therebetween.
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Specification