Ultrasonic surgical apparatus with silicon waveguide
First Claim
1. An ultrasonic core for an ultrasonic surgical apparatus, the core comprising:
- a longitudinally elongated, generally planar waveguide constructed from a single crystal or polycrystalline material, the waveguide including a transduction portion and a distal resonator, the transduction portion and the distal resonator having the same thickness; and
a transducer structure affixed to the transduction portion of the waveguide;
wherein the distal resonator is configured to vary the magnitude of a mode of ultrasonic vibration created in the transduction portion and includes a proximal end having first transverse extent, a distal end having a second, lesser transverse extent, and a body generally narrowing between the first and second transverse extents; and
wherein the edges of the body of the distal resonator are asymmetric with respect to the central longitudinal axis of the wave guide.
4 Assignments
0 Petitions
Accused Products
Abstract
Ultrasound surgical apparatus are disclosed, including: medical ultrasound handpieces with proximally mounted ultrasound radiators configured to create a distally-focused beam of ultrasound energy, in combination with distal guide members for control of focal point depth; medical ultrasound handpieces with proximally mounted ultrasound radiators configured to create a distally-focused beam of ultrasound energy, in combination with distal rolling members for manipulability and control of focal point depth; medical ultrasound handpiece assemblies with coupled end effectors providing a probe with a probe dilation region configured to have an average outside diameter that is equal to or greater than the average outside diameter of a probe tip and neck; as well as junctions to an ultrasonically inactive probe sheath; medical ultrasound handpiece assemblies with coupled end effectors having positionable, ultrasonically inactive probe sheath ends slidably operable to both cover and expose at least a probe tip; and ultrasound transducer cores including a transducer structure affixed to a longitudinally elongated, generally planar, single crystal or polycrystalline material waveguide.
163 Citations
40 Claims
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1. An ultrasonic core for an ultrasonic surgical apparatus, the core comprising:
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a longitudinally elongated, generally planar waveguide constructed from a single crystal or polycrystalline material, the waveguide including a transduction portion and a distal resonator, the transduction portion and the distal resonator having the same thickness; and a transducer structure affixed to the transduction portion of the waveguide; wherein the distal resonator is configured to vary the magnitude of a mode of ultrasonic vibration created in the transduction portion and includes a proximal end having first transverse extent, a distal end having a second, lesser transverse extent, and a body generally narrowing between the first and second transverse extents; and wherein the edges of the body of the distal resonator are asymmetric with respect to the central longitudinal axis of the wave guide. - View Dependent Claims (2, 3, 4)
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5. An ultrasonic core for an ultrasonic surgical apparatus, the core comprising:
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a longitudinal elongated, generally planar waveguide constructed from a single crystal or polycrystalline material, the waveguide including a transduction portion and a distal resonator, the transduction portion and the distal resonator having the same thickness; and a transducer structure affixed to the transduction portion of the waveguide; wherein the transducer structure includes a transducer indirectly bonded to a carrier, and the carrier is indirectly bonded to the transduction portion by a surface mount electrical contact; wherein the transducer is indirectly bonded to the carrier by a discontinuous pattern of a first bonding material, and further indirectly bonded to the carrier by a second bonding material, wherein at least the second bonding material is a conductive bonding material serving as a driving electrode for the transducer structure; and wherein the transducer is dimensioned to have a greater longitudinal extent than the longitudinal extent of the carrier. - View Dependent Claims (6, 7)
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8. An ultrasonic core for an ultrasonic surgical apparatus, the core comprising:
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a longitudinally elongated, generally planar waveguide constructed from a single crystal of polycrystalline material, the waveguide including a transduction portion and a distal resonator, the transduction portion and the distal resonator having the same thickness; and a transducer structure affixed to the transduction portion of the waveguide; and an encased coil surrounding the transducer structure and the transduction portion, wherein the transducer structure includes a transducer constructed from a magnetostrictive material. - View Dependent Claims (9, 10, 11)
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12. An ultrasonic core for an ultrasonic surgical apparatus, the core comprising:
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a longitudinally elongated, generally planar waveguide constructed from a single crystal or polycrystalline material, the waveguide including a transduction portion and a distal resonator; and a transducer structure affixed to the transduction portion of the waveguide, wherein the transduction portion includes at least one surface mount electrical contact, and the transducer structure is joined to the at least one surface mount electrical contact by a braze. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An ultrasonic core for an ultrasonic surgical apparatus, the core comprising:
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a longitudinally elongated, generally planar waveguide constructed from a single crystal or polycrystalline material, the waveguide including a transduction portion and a distal resonator; and a transducer structure affixed to the transduction portion of the waveguide, wherein the longitudinally elongated, generally planar waveguide includes a proximal resonator, disposed proximally from the transduction portion, and an end mass is affixed to the proximal resonator. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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30. An ultrasonic core for an ultrasonic surgical apparatus, the core comprising:
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a longitudinally elongated, generally planar waveguide constructed from a single crystal or polycrystalline material, the waveguide including a transduction portion and a distal resonator, the transduction portion and the distal resonator having the same thickness; a transducer structure affixed to the transduction portion of the waveguide; and an instrument housing surrounding at least the transduction portion and transducer structure, wherein the waveguide includes an end effector configured to provide a blunt side surface disposed at a distal-most anti-node, and wherein the housing includes a flexible tine extending along the waveguide, the flexible tine having a tissue pad opposing the blunt side surface. - View Dependent Claims (31, 32, 33)
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34. An ultrasonic core for an ultrasonic surgical apparatus, the core comprising:
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a longitudinally elongated, generally planar waveguide constructed from a single crystal or polycrystalline material, the waveguide including a transduction portion and a distal resonator, the transduction portion and the distal resonator having the same thickness; and a transducer structure affixed to the transduction portion of the waveguide; wherein the waveguide includes an end effector having a distal tip constructed from a second, dissimilar material, the second, dissimilar material being selected from a group consisting of a metallic, glassy, polycrystalline, or crystalline material having a greater toughness than the single crystal or polycrystalline material, wherein the waveguide is a laminated structure including a plurality of planar layers of the single crystal or polycrystalline material, and wherein the distal tip includes a tang projecting proximally into the end effector. - View Dependent Claims (35, 36, 37)
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38. An ultrasonic core for an ultrasonic surgical apparatus, the core comprising:
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a longitudinally elongated, generally planar waveguide constructed from a single crystal or polycrystalline material, the waveguide including a transduction portion and a distal resonator, the transduction portion and the distal resonator having the same thickness; a transducer structure affixed to the transduction portion of the waveguide; and an additional longitudinally elongated, generally planar waveguide constructed from the single crystal or polycrystalline material and affixed to an opposite side of the transducer structure to form a mutually opposing pair of spaced apart waveguides, wherein the waveguides each include an end effector projecting beyond a spacer disposed between the waveguides at a distal node. - View Dependent Claims (39, 40)
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Specification