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Liposuction apparatus and associated method

  • US 5,419,761 A
  • Filed: 08/03/1993
  • Issued: 05/30/1995
  • Est. Priority Date: 08/03/1993
  • Status: Expired due to Term
First Claim
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1. A liposuction method comprising the steps of:

  • providing an elongate rigid tube having a distal end and a proximal end and an axially extending lumen;

    forming an incision in a skin surface of a patient;

    inserting only said tube through said incision into subcutaneous adipose tissues of the patient;

    upon insertion of said tube through said incision, generating an ultrasonic pressure wave at said proximal end of said tube;

    transmitting said ultrasonic wave through said tube to establish a longitudinal standing wave therein;

    producing cavitation bubbles at said distal end of said tube in response to said standing wave;

    by virtue of the production of said cavitation bubbles, liquefying adipose tissues of the patient at a surgical site located distally of said distal end;

    applying suction to said lumen, thereby aspirating the liquefied adipose tissues from said surgical site through said lumen; and

    maintaining said distal end and said adipose tissues at said surgical site at approximately body temperature during said steps of producing cavitation bubbles and liquefying.

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