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Dissection handpiece and method for reducing the appearance of cellulite

  • US 9,364,246 B2
  • Filed: 06/26/2012
  • Issued: 06/14/2016
  • Est. Priority Date: 09/07/2005
  • Status: Active Grant
First Claim
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1. A minimally invasive skin treatment device, comprising:

  • a handpiece having a perimeter elevation and a top which cooperatively define a recessed area, an inner side of the perimeter elevation and the top defining an apposition surface facing into the recessed area;

    a conduit extending through a side of the perimeter elevation to the recessed area;

    a needle configured to at least partially extend through the conduit and into the recessed area;

    a guidance track operably connected to the handpiece, wherein the guidance track is configured to constrain a portion of the needle in contact with the guidance track to move along a predetermined path to cooperatively move a distal end of the needle within the recessed area in a plane substantially parallel to the top of the handpiece and within a region of a predetermined shape defined by the predefined path;

    a pump;

    a source of injectable fluids in fluid communication with said pump; and

    wherein the needle is in fluid communication with the pump, the needle being configured to inject the injectable fluids into a tissue disposed in the recessed area;

    a microprocessor having graphical user interface, wherein the pump is configured to communicate information specifying a volume of a fluid injected into the tissue to the microprocessor;

    wherein the microprocessor is configured to use the graphical user interface to prompt a user to enter information specifying at least one of a concentration of a component of the fluid and a weight of a patient;

    wherein the microprocessor includes logic for determining a maximum dosage the fluid injected based on the weight of the patient, the concentration of the component of the fluid, and the volume of the fluid injected;

    wherein the microprocessor is configured to cause the graphical interface to display at least one warning message when the volume of the fluid injected exceeds a predefined threshold which is less than the maximum dosage; and

    wherein the microprocessor is configured to instruct the pump to terminate an injection when the volume of the fluid injected reaches the maximum dosage.

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