Ultrasonic surgical instruments
First Claim
1. A surgical instrument for the treatment of tissue, comprising:
- a transducer configured to produce vibrations at a predetermined frequency;
an ultrasonic blade extending along a longitudinal axis coupled to the transducer, wherein the ultrasonic blade comprises;
a substantially solid, substantially cylindrical blade body without a channel and having a first length, wherein the substantially solid, substantially cylindrical blade body comprises 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;
a treatment region extending from the proximal end to the distal end; and
a tapered inner concave surface forming a conical shape formed at the distal end extending inwardly into the substantially solid, substantially cylindrical blade body substantially along the longitudinal axis, wherein the conical shape comprises an apex within the substantially solid, substantially cylindrical blade body, wherein the tapered inner concave surface terminates at or before the apex of the conical shape, wherein the tapered inner concave surface comprises a second length between the distal end and the apex, wherein the first length is at least three times the second length such that vibrations produced along the substantially solid, substantially cylindrical blade body are substantially uniform to provide substantially even distribution of energy to the tissue, and wherein the tapered inner concave surface is configured to cause fluid droplets to converge along the longitudinal axis when the fluid droplets collide with the tapered inner concave surface to enhance visibility of a surgical site by reducing a mist plume produced by fluids contacting a surface of the energized ultrasonic blade during ultrasonic surgical procedures.
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0 Petitions
Accused Products
Abstract
A surgical instrument includes a transducer configured to produce vibrations at a predetermined frequency. The transducer is configured to produce vibrations along a longitudinal axis at a predetermined frequency. An ultrasonic blade extends along the longitudinal axis and is coupled to the transducer. The ultrasonic blade includes a body having a proximal end and a distal end. The distal end is movable relative to the longitudinal axis by the vibrations produced by the transducer. The body includes a treatment region that extends from the proximal end to the distal end. The body includes a tapered concave surface which extends inwardly into the body defining a variety of shapes including a conical shape, a frusto-conical shape, or a partial spheroid.
787 Citations
31 Claims
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1. A surgical instrument for the treatment of tissue, comprising:
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a transducer configured to produce vibrations at a predetermined frequency; an ultrasonic blade extending along a longitudinal axis coupled to the transducer, wherein the ultrasonic blade comprises; a substantially solid, substantially cylindrical blade body without a channel and having a first length, wherein the substantially solid, substantially cylindrical blade body comprises 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; a treatment region extending from the proximal end to the distal end; and a tapered inner concave surface forming a conical shape formed at the distal end extending inwardly into the substantially solid, substantially cylindrical blade body substantially along the longitudinal axis, wherein the conical shape comprises an apex within the substantially solid, substantially cylindrical blade body, wherein the tapered inner concave surface terminates at or before the apex of the conical shape, wherein the tapered inner concave surface comprises a second length between the distal end and the apex, wherein the first length is at least three times the second length such that vibrations produced along the substantially solid, substantially cylindrical blade body are substantially uniform to provide substantially even distribution of energy to the tissue, and wherein the tapered inner concave surface is configured to cause fluid droplets to converge along the longitudinal axis when the fluid droplets collide with the tapered inner concave surface to enhance visibility of a surgical site by reducing a mist plume produced by fluids contacting a surface of the energized ultrasonic blade during ultrasonic surgical procedures. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An ultrasonic surgical blade for the treatment of tissue, comprising:
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a substantially solid, substantially cylindrical blade body defining a longitudinal axis, the substantially solid, substantially cylindrical blade body without a channel and having a first length, wherein the substantially solid, substantially cylindrical blade body comprises a proximal end and a distal end, wherein the distal end is movable relative to the longitudinal axis by the vibrations produced by a transducer; a treatment region extending from the proximal end to the distal end; and a tapered inner concave surface forming a conical shape formed at the distal end extending inwardly into the substantially solid, substantially cylindrical blade body substantially along the longitudinal axis, wherein the conical shape comprises an apex within the substantially solid, substantially cylindrical blade body, wherein the tapered inner concave surface terminates at or before the apex of the conical shape, wherein the tapered inner concave surface comprises a second length between the distal end and the apex, wherein the first length is at least three times the second length such that vibrations produced along the substantially solid, substantially cylindrical blade body are substantially uniform to provide substantially even distribution of energy to the tissue, and wherein the tapered inner concave surface is configured to cause fluid droplets to converge along the longitudinal axis when the fluid droplets collide with the tapered inner concave surface to enhance visibility of a surgical site by reducing a mist plume produced by fluids contacting a surface of the energized ultrasonic blade during ultrasonic surgical procedures. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An ultrasonic surgical blade for the treatment of tissue, comprising:
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an elongated, substantially solid blade body having a first length and comprising a proximal end and a distal end, wherein the elongated, substantially solid blade body is configured to acoustically couple to an acoustic assembly configured to produce vibratory motion in the elongated, substantially solid blade body; a treatment region; and a first edge at the distal end of the elongated, substantially solid blade body; a tapered inner concave surface defining a cavity that extends along an axis into the elongated, substantially solid blade body from the first edge, wherein the cavity terminates at a proximal end of the tapered inner concave surface and has a second length between the first edge and the proximal end, wherein the first length is at least three times the second length such that vibrations produced along the elongated, substantially solid blade body are substantially uniform to provide substantially even distribution of energy to the tissue, and wherein the tapered inner concave surface is configured to cause fluid droplets to converge along the axis when the fluid droplets collide with the tapered inner concave surface when the elongated, substantially solid blade body is in vibratory motion to enhance visibility of a surgical site. - View Dependent Claims (23, 24, 25, 26)
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27. An ultrasonic surgical blade for the treatment of tissue, comprising:
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an elongated, substantially solid blade body having a first length and comprising a proximal end and a distal end, wherein the proximal end is configured to acoustically couple to an acoustic assembly configured to produce vibratory motion in the elongated, substantially solid blade body; a treatment region; a first edge at the distal end of the elongated, substantially solid blade body; and a cavity comprising a taper, wherein the cavity extends along an axis into the elongated, substantially solid blade body from the first edge, wherein the cavity terminates at a proximal end of the taper and has a second length between the first edge and the proximal end, wherein the first length is at least three times the second length such that vibrations produced along the elongated, substantially solid blade body are substantially uniform to provide even distribution of energy to the tissue, and wherein the cavity is configured to cause fluid droplets to converge along the axis when the fluid droplets collide with the cavity when the elongated, substantially solid blade body is in vibratory motion to enhance visibility of a surgical site. - View Dependent Claims (28, 29, 30, 31)
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Specification