Patent US5012797A successfully refreshed from Google Patents.
US5012797A
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Method for removing skin wrinkles
Assignee: LANG MARC D
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Filing: 1990-01-08
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Granted: 1991-05-07
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Expires: 2010-01-08
Abstract
Abstract Mammal skin having wrinkles can be treated to remove wrinkles by abrading elevated portions of the epithelial layer with an ultrasonic surgical tool adapted to abrade soft tissue. The subcutaneous tissue in the selected region is medicated by subcutaneous injection of anaesthetic, vaso constrictor and spreading factor in effective quantities.
Inventors
- 👤 Marc D. Liang
- 👤 Krishna Narayanan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:15
CPC Classifications
A; A61; A61N; A61N7/00; A61B; A61B5/00; A61B5/24; A61B5/316; A61B5/318; A61B5/325; A61B17/00; A61B2017/00743; A61B2017/00747; A61B2017/00761; A61B17/32; A61B2017/320004; A61B17/320068; A61B2017/32007
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
150 words
A method for removing skin wrinkles from a region of living mammal skin, said skin wrinkles including raised portions of the epithelial layer which are elevated above a normal surface of said skin, by use of a high frequency vibrating tool having an output tip which comprises: a. introducing subcutaneously in said region (1) an effective amount of anesthetic; (2) an effective amount of vasoconstrictor; (3) an effective amount of enzyme spreading factor; b. selecting engaging said raised portions of the epithelial layer of said skin in said region with the output tip of said high frequency vibrating tool oscillating at frequencies from 20,000 to 50,000 Hertz to abrade selectively said raised portions of the epithelial skin layer in said region and to expose the subepithelial layer beneath said raised portions; c. allowing the exposed subepithelial skin layers to heal, whereby the region of skin has reduced skin surface irregularities.
Claim 2
Independent Claim
150 words
A method for removing skin wrinkles from a region of living mammal skin, said skin wrinkles including raised portions of the epithelial layer which are elevated above a normal surface of said skin, by use of a high frequency vibrating tool having an output tip which comprises: a. introducing subcutaneously in said region (1) an effective amount of anesthetic; (2) an effective amount of vasoconstrictor; (3) an effective amount of enzyme spreading factor; b. selecting engaging said raised portions of the epithelial layer of said skin in said region with the output tip of said high frequency vibrating tool oscillating at frequencies from 20,000 to 50,000 Hertz to abrade selectively said raised portions of the epithelial skin layer in said region and to expose the subepithelial layer beneath said raised portions; c. allowing the exposed subepithelial skin layers to heal, whereby the region of skin has reduced skin surface irregularities.
Claim 3
Dependent Claim
11 words
The method of claim 1 in which the anaesthetic is lidocaine.
Claim 4
Dependent Claim
11 words
The method of claim 1 in which the vasonconstrictor is epinephrine.
Claim 5
Dependent Claim
13 words
The method of claim 1 in which the enzyme spreading factor is hyaluronidase.
Claim 6
Dependent Claim
22 words
The method of claim 1 in which the said high frequency vibrating tool has a power input of 35 to 50 watts.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-05-06 | 1994-11-05 | 1995-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-06 | 1998-11-05 | 1999-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-06 | 2002-11-05 | 2003-05-07 | $7700.00 | Window Closed / Lapsed |