Surgery – Instruments – Electrical application
Reexamination Certificate
1998-11-17
2002-05-07
Evanisko, George R. (Department: 3762)
Surgery
Instruments
Electrical application
C607S104000
Reexamination Certificate
active
06383184
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to devices and methods for resurfacing skin and, more particularly, to devices and methods for treating wrinkles.
2. Description of the Related Art
Devices utilizing laser energy exist for resurfacing or tightening skin. These devices burn the skin with a superficial application of laser energy which is sufficient to penetrate the subdermal layers and cause shrinkage of the collagen components of these deep skin layers. Unfortunately, these devices produce a second degree burn in the outer layers of the skin which is painful and results in sloughing of these layers. There is, therefore, a need for a new and improved device which overcomes these advantages.
OBJECTS OF THE INVENTION
In general, it is an object of the present invention to provide a radio frequency device and method for resurfacing skin.
Another object of the invention is to provide a radio frequency device and method of the above character in which collagen molecules in the skin are denatured to tighten the epidermis layer of the skin.
Another object of the invention is to provide a radio frequency device and method of the above character in which the subdermal layers of the skin are heated to denature the collagen therein.
Another object of the invention is to provide a radio frequency device and method of the above character which minimizes burning of the superficial layers of the skin.
Another object of the invention is to provide a radio frequency device and method of the above character in which radio frequency energy is carried by an electrically conductive liquid to the surface of the skin.
Another object of the invention is to provide a radio frequency device and method of the above character in which a flow of the electrically conductive liquid engages the skin to actively cool the skin.
Additional objects and features of the invention will appear from the following description in which the preferred embodiments are set forth in detail in conjunction with the accompanying drawings.
REFERENCES:
patent: 4832048 (1989-05-01), Cohen
patent: 5195959 (1993-03-01), Smith
patent: 5277696 (1994-01-01), Hagen
patent: 5348554 (1994-09-01), Imran et al.
patent: 5401272 (1995-03-01), Perkins
patent: 5458596 (1995-10-01), Lax et al.
patent: 5507790 (1996-04-01), Weiss
patent: 5584972 (1996-12-01), LaFontaine et al.
patent: 5685877 (1997-11-01), Pagedas et al.
patent: 5755753 (1998-05-01), Knowlton
Evanisko George R.
Glenn Michael A.
Sharkey Hugh R.
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