Ultrasonic surgical apparatus and methods for use thereof

摘要

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 transducing structure affixed to a longitudinally elongated, generally planar, single crystal or polycrystalline material waveguide.

主权项

1. An ultrasonic surgical apparatus comprising:
a medical ultrasound handpiece assembly having an ultrasound transducer; and an end effector coupled to the ultrasound transducer, the end effector having, in order, a distal probe tip, a probe neck, a probe dilation region, and an ultrasonically active shaft, with the shaft being coaxially held within an ultrasonically inactive probe sheath and conducting a standing ultrasonic wave between the ultrasound transducer and the distal probe tip; wherein the probe dilation region is configured to have an average outside diameter that is equal to or greater than the average outside diameter of the probe tip and the average outside diameter of the probe neck; wherein the probe sheath is configured to have an outside diameter that is approximately equal to the outside diameter of the probe dilation region, with the probe sheath and the probe dilation region forming an annular junction about the distal end of the ultrasonically active shaft; and wherein the probe dilation region is located proximate the first anti-node of the standing ultrasonic wave proximal from the distal probe tip.