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(12) United States Patent
(io) Patent No.: US 6,471,712 B2 (45) Date of Patent: Oct. 29,2002
(54) DERMABRASION AND SKIN CARE APPARATUS
(76) Inventor: Steven A. Burres, 465 North Roxbury, Beverly Hills, CA (US) 90210
( * ) Notice: Subject to any disclaimer, the term ol this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days.
(21) Appl. No.: 09/789,968
(22) Filed: Feb. 21, 2001
(65) Prior Publication Data
US 2002/0107527 Al Aug. 8, 2002
Related U.S. Application Data
(60) Provisional application No. 60/238,167, filed on Oct. 5, 2000.
(51) Int. CI.7 A61B 17/50
(52) U.S. CI 606/131; 606/133
(58) Field of Search 606/131, 133;
15/104.93, 104.94, 229.12, 229.13, 229.11, 209.1; 132/76.4, 75.3, 75.8, 73.6; 51/295,
(56) References Cited
U.S. PATENT DOCUMENTS
1,482,837 A * 2/1924 Buck 132/73.6
5,171,315 A * 12/1992 Cabrero 606/131
5,261,919 A * 11/1993 Niedertscheider 606/133
5,849,018 A * 12/1998 Rosson et al 606/133
Methods and apparatus for abrading, cleaning, massaging, buffing or otherwise treating the skin, fingernails, toenails or other body surfaces. The basic apparatus comprises a small motor mounted within a hand held housing and a cylindrical member rotatably mounted on the housing. The cylindrical member is rotatably driven by the motor and is covered with a treatment-effecting covering such as abrasive material, cloth, brush bristles, adhesive, massaging projections, etc. The cylindrical member may be placed in contact with the skin, nails or other body surface while rotating, thereby abrading, cleaning, massaging, buffing or otherwise treating the skin, nails or other body surface. In a more advanced embodiment, the device may incorporate a suction apparatus for suctioning away severed particles of skin or other matter. In either embodiment, the device may incorporate a drag for causing the rotation of the cylinder to stop when a predetermined maximum pressure is applied by the cylinder on the underlying body surface, thereby avoiding excessive abrasion or injury to the skin or other body surface being treated.
13 Claims, 2 Drawing Sheets
DERMABRASION AND SKIN CARE
This application claims priority to United States Provisional Patent Application Ser. No. 60/238,167 entitled Dermabrasion and Skin Care Apparatus filed on Oct. 5, 2000, the entire disclosure of such provisional application being expressly incorporated herein by reference.
FIELD OF THE INVENTION
This invention relates generally to medical/ cosmetological devices and methods, and more particularly to devices and methods for performing dermabrasion pro- is cedures.
BACKGROUND OF THE INVENTION
The human skin consists of three layers. The Epidermis or outer layer provides protection from the environment. The 20 Dermis or middle layer primarily acts to provide structure and support. The third layer, which is the Subcutaneous Fat layer provides insulation and acts as a shock absorber.
The Epidermis is divided into three sublayers, the outer- ^ most of which is the Stratum Cornium. The Stratum Cornium consists of several layers of dead squamous cells and varies in thickness depending on location on the body. In certain disease states like eczema and psoriasis the stratum cornium may become abnormally thick and can 3Q cause irritation to the peripheral nerves and other skin components. The Stratum cornium tends to thicken as a result of age, sun exposure or other environmental exposure thereby resulting in the formation of wrinkles and creases. The formation of wrinkles or creases due to thickening of the 3J Stratum Cornium can be attenuated somewhat by techniques known as exfoliation, dermabrasion or dermaplaning. In each of these techniques, all or a portion of the Stratum Cornium is removed.
Mild exfoliation can be accomplished by simply scrub- 40 bing the skin with a brush, terry cloth or particulate abrasive such as pumice. More aggressive exfoliation is typically performed by topical application of a chemical exfoliating agent (i.e., a "chemical peel"). Exfoliation typically removes only a portion of the Stratum Cornium and is useful in 45 lessening fine lines and small wrinkles. Some chemical exfoliation procedures, such as those using alpha-hydroxy acids in relatively low concentrations, can be carried out at home or by a cosmetologist. More extensive "chemical peel" procedures are typically performed by physicians. 50
Dermaplaning is a technique wherein a device known as a dermatome is used to cut away a surface layer of skin. Dermatomes use sharp, precisely positioned cutting blades to remove predetermined thicknesses of skin. Because the amount of skin to be removed varies, the professional skill 55 and judgment of a physician skilled in dermaplaning is typically required.
Dermabrasion is a technique wherein controlled surgical scraping is used to remove substantially all of the Stratum Cornium in one or more specific regions of the body. 60 Dermabrasion is effective in removing some age related wrinkles or creases and can be used to soften the sharp edges of surface irregularities, giving the skin a smoother appearance. In addition to use in removing age related wrinkles and creases dermabrasion is often performed by physicians to 65 improve the appearance of skin that has been scarred by trauma or prior surgery. The dermabrasion devices of the
prior art have typically been designed such that an abrasive pad or disc is rotated about an axis that is generally perpendicular to the skin surface and the disc or pad is placed in contact with the skin while moving to abrade the surface of the skin. Because it is undesirable to remove too much skin during the dermabrasion process, skilled operator technique has been required to avoid excessive abrasion of the patient's skin. The application of slightly excessive force on the dermabraider during the procedure can result in overabrasion of the skin (e.g., removal of the entire epidermis). For this reason, most dermabrasion devices have been relatively sophisticated and costly devices which are marketed primarily to physicians. Also, for this reason and possibly others, most dermabrasion procedures have heretofore been performed by physicians, despite the fact that if the amount of skin removed during the dermabrasion procedure is appropriately limited the procedure is extremely safe and could otherwise be performed on one's self at home or by a cosmetologist.
In view of the foregoing, there exists a need in the art for the design and development of a simple, relatively inexpensive dermabrasion device that a) can be used with minimal training by consumers and cosmetologists as well as more highly trained medical personnel and b) is equipped to minimize the likelihood of over abrading or injuring the skin.
SUMMARY OF THE INVENTION
The present invention provides simple, relatively inexpensive dermabrasion devices that can be used with minimal training by untrained consumers and cosmetologists or, in some cases, by physicians and other trained professionals. The dermabrasion devices of the present invention generally comprise a) a housing sized and configured to be grasped by a human hand; b) a motor disposed within the housing; c) a body-contacting cylinder rotatably mountable on said housing such that one side of the cylinder may be placed in contact with the body (e.g, skin surface, nail surface, tongue, etc.); and, a drive system connecting the motor to the body-contacting cylinder such that the motor will cause the cylinder to rotate while the cylinder is in contact with the patient's body (e.g, the skin, nails or tongue). The body contacting cylinder may be removable and interchangeable, and a variety of different cylinders may be provided, each such cylinder having a different surface covering suitable for a different purpose. For example, body-contacting cylinders may be covered with: abrasives such as diamond fragments or sandpaper for dermabrasion, corrugated rubber for small bumps or massaging, terry cloth for cleaning or buffing, an adhesive for removing dead cells or other particulate matter and/or a brush for brushing, buffing or the like. The motor may be powered by batteries, rechargeable batteries or by an electrical power cord connected to a power outlet.
Further in accordance with the invention, the bodycontacting cylinder may, in at least some embodiments, be mounted in a recessed cavity or slot formed in the device housing such that only one side of the rotating cylinder is exposed for contact with the patient's skin or other body part. Also, in at least some embodiments, the bodycontacting cylinder rotate about an axis that is parallel (or nearly parallel) to the skin or other body surface with which the rotating body-contacting cylinder is placed in contact. This partial shielding of the rotating cylinder and/or the fact that the cylinder rotates about an axis that is parallel to the patient's skin or body surface is/are in contrast to prior devices that employ a brush or disc that rotates about an axis that is generally perpendicular to the skin or body surface