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Probe unit, treatment instrument, and treatment system

  • US 10,555,749 B2
  • Filed: 09/08/2017
  • Issued: 02/11/2020
  • Est. Priority Date: 09/27/2013
  • Status: Active Grant
First Claim
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1. A probe unit for treating a bone surrounded by living tissue, the probe unit comprising:

  • a probe configured to treat the bone by ultrasonic vibration;

    a hollow sheath surrounding the probe, the hollow sheath including;

    a first portion disposed at a first distance from a central axis of the hollow sheath and having a first diameter, anda second portion disposed at a second distance from the central axis that is greater than the first distance of the first portion, the second portion having a second diameter that is longer than the first diameter of the first portion and intersects the first diameter of the first portion at right angles; and

    a knob configured to rotate the hollow sheath relative to the probe; and

    a circular-ring-shaped balloon attached to an outer circumferential surface of the hollow sheath in vicinity of a distal end of the hollow sheath, the circular-ring-shaped balloon being configured to be inflated and deflated.

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