Skin treatment tool applicator tip

US11291474B2 · kind B2 · utility

Inventors

• Ed F. Nicolas · Signal Hill, US
• William Cohen · Long Beach, US

Key dates

• Filing date: Aug 13, 2020
• Grant date: Apr 5, 2022
• Expiry date: Aug 13, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2217/005
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The present invention is an applicator tip for a hand piece assembly used in dermal abrasion procedures, the applicator tip having a cap shape with a plurality of apertures that form ports communicating with a fluid supply line in the hand piece assembly and a vacuum source to remove the abrading fluid. The fluid is introduced onto the outer abrading surface of the applicator tip through a first central aperture and spreads out along the outer abrading surface when the applicator tip is placed against the patient's skin. Recesses in the outer abrading surface establish pathways for the abrading fluid to move along as the applicator tip is moved over the patient's skin. The fluid emitting from the central port is moved into one of four quadrants defined by recesses in the outer abrading surface, each quadrant serving as a fluid chamber that receives fluid from the central fluid supply port. Each sector shaped chamber includes within its border a C-shaped barrier with its opening facing a dividing sector wall. As the applicator tip forms a seal with the patient's skin, fluid is introduced through the supply port and through the entrance of the chamber, filling each chamber with worki…