US5660836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for controlled contraction of collagen tissue
Assignee: Solta Medical Inc
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Filing: 1995-05-05
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Granted: 1997-08-26
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Expires: 2015-05-05
Abstract
Abstract A method and apparatus applies radiant energy through the skin to an underlying subcutaneous layer or deeper soft tissue layers that includes loculations of fat with fibrous septae made of collagen tissue. This creates a desired contour effect without substantially modifying melanocytes and other epithelial cells in the epidermis. A membrane conforms a contacting exterior surface of the membrane to a skin layer. One or more thermal electrodes positioned in the membrane. A focussing element focuses thermal energy to the underlying collagen tissue. The focusing element and the electrolytic solution create a reverse thermal gradient from the skin to the collagen tissue. A thermal power source is coupled to the thermal electrodes.
Inventors
- 👤 Edward W. Knowlton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:57
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/1206; A61B18/14; A61M; A61M15/00; A61M15/0028; A61M15/003; A61M15/0033; A61M15/0035; A61M15/0036; A61M15/0041; A61N; A61N5/00; A61N5/02; A61N5/04; A61B2018/00315; A61B2018/00482; A61B2018/00488; A61B2018/00636; A61B2018/0066; A61M2202/00; A61M2202/06; A61M2202/064; A61M2205/00; A61M2205/07; A61M2205/071; A61M2205/073
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
94 words
A method of liposculpturing an area of the body including a skin surface with multiple layers, and an underlying area made of a loculation of fat that has collagen tissue as a fibrous septae, comprising: providing an electromagnetic energy delivery device; creating a reverse thermal gradient through a surface of the skin while heating the underlying collagen containing tissue; heating the skin surface and underlying collagen containing tissue sufficiently to partially denature at least a portion of the collagen containing tissue while minimizing cellular destruction; contracting the collagen containing tissue; and tightening the skin.
Claim 2
Independent Claim
94 words
A method of liposculpturing an area of the body including a skin surface with multiple layers, and an underlying area made of a loculation of fat that has collagen tissue as a fibrous septae, comprising: providing an electromagnetic energy delivery device; creating a reverse thermal gradient through a surface of the skin while heating the underlying collagen containing tissue; heating the skin surface and underlying collagen containing tissue sufficiently to partially denature at least a portion of the collagen containing tissue while minimizing cellular destruction; contracting the collagen containing tissue; and tightening the skin.
Claim 3
Dependent Claim
17 words
The method of claim 1, wherein the reverse thermal gradient produces a net mobilization of intracellular fat.
Claim 4
Dependent Claim
17 words
The method of claim 1, wherein the electromagnetic energy delivery device includes one or more RF electrodes.
Claim 5
Dependent Claim
21 words
The method of claim 3, further comprising: a source of electrolytic solution configured to deliver electrolytic solution to the RF electrodes.
Claim 6
Dependent Claim
18 words
The method of claim 4, wherein RF energy is transferred from the RF electrodes to the electrolytic solution.
Claim 7
Dependent Claim
18 words
The method of claim 5, further comprising: a cooling fluid lumen positioned in the electromagnetic energy delivery device.
Claim 8
Dependent Claim
20 words
The method of claim 6, further comprising a source of cooling medium that is introduced into the cooling fluid lumen.
Claim 9
Dependent Claim
15 words
The method of claim 1, wherein the collagen containing tissue is in a subdermal layer.
Claim 10
Dependent Claim
16 words
The method of claim 1, wherein the collagen containing tissue is in a deep dermal layer.
Claim 11
Dependent Claim
15 words
The method of claim 1, wherein the collagen containing tissue is in a subcutaneous layer.
Claim 12
Dependent Claim
16 words
The method of claim 1, wherein the collagen containing tissue is in fascial and muscle tissue.
Claim 13
Dependent Claim
24 words
The method of claim 1, wherein the collagen containing tissue is heated to a temperature in the range of 30 to 80 degrees C.
Claim 14
Dependent Claim
24 words
The method of claim 1, wherein the collagen containing tissue is heated to a temperature in the range of 30 to 75 degrees C.
Claim 15
Dependent Claim
24 words
The method of claim 1, wherein the collagen containing tissue is heated to a temperature in the range of 30 to 70 degrees C.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-08-25 | 2001-02-24 | 2001-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-08-25 | 2005-02-24 | 2005-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-08-25 | 2009-02-24 | 2009-08-26 | $7700.00 | Window Closed / Lapsed |