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Electric toothbrush and method combining bristle and pulsed liquid irrigation cleansing to oral cavity

  • US 6,203,320 B1
  • Filed: 04/14/1999
  • Issued: 03/20/2001
  • Est. Priority Date: 12/22/1998
  • Status: Expired due to Fees
First Claim
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1. An electronically operated toothbrush comprising:

  • (i) a handle;

    (ii) a brushhead connected to the handle, the brushhead having a plurality of non-circular cross-section hollow filament bristles;

    (iii) at least one passageway through the handle and brushhead for transporting water into and through the hollow filament bristles;

    (iv) a source of electrical energy attached to the handle; and

    (v) a vibrational element activated by the source of electric energy, the vibrational element imparting an ultrasonic wave pulsation to the water being transported to the hollow filament bristles.

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