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Ultrasonic device with sheath and transverse motion damping

  • US 5,397,293 A
  • Filed: 11/25/1992
  • Issued: 03/14/1995
  • Est. Priority Date: 11/25/1992
  • Status: Expired due to Term
First Claim
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1. An ultrasonic angioplasty device for use with an ultrasonic waveform generator, comprising:

  • a wire having a proximal end operatively connectable to said waveform generator;

    a sheath surrounding said wire; and

    transverse motion damping means disposed within said sheath for minimizing transverse motion of the wire while permitting axial motion of said wire during transmission of an ultrasonic waveform along said wire, said motion damping means including a thread extending in a substantially radial plane inside said sheath, said thread having opposite ends connected to said sheath.

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