US5458596A
Expired / Lapsed
US
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Method and apparatus for controlled contraction of soft tissue
Assignee: Oratec Interventions Inc
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Filing: 1994-05-06
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Granted: 1995-10-17
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Expires: 2014-05-06
Abstract
Abstract An apparatus and method are provided for control contraction of tissue that includes collagen fibers. The apparatus includes a handpiece, and an electrode with an electrode proximal end associated with the handpiece. A distal end of the electrode has a geometry that delivers a controlled amount of energy to the tissue for a desired contraction of the collagen fibers. This is achieved while dissociation and breakdown of the collagen fibers is minimized. The handpiece, with electrode, is adapted to be introduced through an operating cannula in percutaneous applications. Additionally, an operating cannula may be included in the apparatus and be attached to the handpiece. The apparatus and method provides for a desired level of contraction of collagen soft tissue without dissociation or breakdown of collagen fibers.
Inventors
- 👤 Ronald G. Lax
- 👤 Gary S. Fanton
- 👤 Stuart D. Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:04
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/148; A61N; A61N1/00; A61N1/40; A61B2018/00005; A61B2018/00011; A61B2018/00023; A61B2018/00053; A61B2018/00059; A61B2018/00071; A61B2018/00083; A61B2018/00315; A61B2018/00452; A61B2018/00636; A61B2018/00696; A61B2018/00702; A61B2018/00773; A61B2018/00791; A61B2018/1405; A61B2018/1425; A61B2018/143; A61B2018/1472; A61B2018/1497; A61B18/18; A61B18/1815; A61B2018/1861
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
178 words
An orthopedic apparatus for delivering RF energy to ligaments, joint capsules and connective tissue to effect the controlled contraction of collagen fibers, the apparatus comprising: an orthopedic electrode including an electrode proximal end and an electrode distal end, the distal end including an energy delivering distal electrode portion comprising a tip having a generally planar surface with the periphery of the planer surface curving into a depending wall with radiused edges for delivering substantially uniform energy across the surface of the energy delivering distal electrode portion to an area of collagen fibers adjacent to the electrode to cause a controlled amount of contraction of the collagen fibers while minimizing dissociation and breakdown of the collagen fibers and minimizing ablation of tissue neighboring the collagen fibers; a handpiece connected to the electrode proximal end for enabling the energy delivering portion of the electrode to be moved relative to the collagen fibers to be contracted during the application of thermal energy; an RF energy source; and a cable to connect the RF energy source to the handle and the electrode.
Claim 2
Dependent Claim
178 words
An orthopedic apparatus for delivering RF energy to ligaments, joint capsules and connective tissue to effect the controlled contraction of collagen fibers, the apparatus comprising: an orthopedic electrode including an electrode proximal end and an electrode distal end, the distal end including an energy delivering distal electrode portion comprising a tip having a generally planar surface with the periphery of the planer surface curving into a depending wall with radiused edges for delivering substantially uniform energy across the surface of the energy delivering distal electrode portion to an area of collagen fibers adjacent to the electrode to cause a controlled amount of contraction of the collagen fibers while minimizing dissociation and breakdown of the collagen fibers and minimizing ablation of tissue neighboring the collagen fibers; a handpiece connected to the electrode proximal end for enabling the energy delivering portion of the electrode to be moved relative to the collagen fibers to be contracted during the application of thermal energy; an RF energy source; and a cable to connect the RF energy source to the handle and the electrode.
Claim 3
Dependent Claim
17 words
The apparatus of claim 1, wherein the energy delivering distal electrode portion has substantially no square edges.
Claim 4
Dependent Claim
16 words
The apparatus of claim 1, wherein the electrode distal end has a substantially disc shaped geometry.
Claim 5
Dependent Claim
62 words
The apparatus of claim 1, wherein the electrode has a central lumen for receiving an electrolytic solution from an electrolytic solution source, and delivering the electrolytic solution to the collagen fibers through a plurality of apertures formed in the electrode distal end, the electrolytic solution serving to provide a substantially uniform distribution of thermal energy from the electrode to the collagen fibers.
Claim 6
Dependent Claim
62 words
The apparatus of claim 1, wherein the electrode has a central lumen for receiving an electrolytic gel from an electrolytic gel source, and delivering the electrolytic gel to the collagen fibers through a plurality of apertures formed in the electrode distal end, the electrolytic gel serving to provide a substantially uniform distribution of thermal energy from the electrode to the collagen fibers.
Claim 7
Dependent Claim
18 words
The apparatus of claim 1, wherein the energy delivering distal electrode portion has an oval cross sectional geometry.
Claim 8
Dependent Claim
16 words
The apparatus of claim 1, wherein the electrode distal end has an oval cross sectional geometry.
Claim 9
Dependent Claim
22 words
The apparatus of claim 1, wherein the energy delivering distal electrode portion delivers RF energy to the the area of collagen fibers.
Claim 10
Dependent Claim
172 words
An orthopedic apparatus for delivering RF energy to ligaments, joint capsules and connective tissue to effect the controlled contraction of collagen fibers, the apparatus comprising: an orthopedic electrode including an electrode proximal end and an electrode distal end, the distal end including an energy delivering distal electrode portion, comprising a tip having a generally planar central surface with the periphery of the planer surface curving into a depending wall with radiused edges for delivering substantially uniform energy across the surface of the energy delivering distal electrode portion to an area of collagen fibers adjacent to the electrode to cause a controlled amount of contraction of the collagen fibers while minimizing dissociation and breakdown of the collagen fibers and minimizing ablation of tissue neighboring the collagen fibers; and a handpiece connected to the electrode proximal end carrying a connector to couple the electrode to a RF source for enabling the energy delivering portion of the electrode to be moved relative to the collagen fibers to be contracted during the application of thermal energy.
Claim 11
Dependent Claim
172 words
An orthopedic apparatus for delivering RF energy to ligaments, joint capsules and connective tissue to effect the controlled contraction of collagen fibers, the apparatus comprising: an orthopedic electrode including an electrode proximal end and an electrode distal end, the distal end including an energy delivering distal electrode portion, comprising a tip having a generally planar central surface with the periphery of the planer surface curving into a depending wall with radiused edges for delivering substantially uniform energy across the surface of the energy delivering distal electrode portion to an area of collagen fibers adjacent to the electrode to cause a controlled amount of contraction of the collagen fibers while minimizing dissociation and breakdown of the collagen fibers and minimizing ablation of tissue neighboring the collagen fibers; and a handpiece connected to the electrode proximal end carrying a connector to couple the electrode to a RF source for enabling the energy delivering portion of the electrode to be moved relative to the collagen fibers to be contracted during the application of thermal energy.
Claim 12
Dependent Claim
17 words
The apparatus of claim 1, wherein the energy delivering distal electrode portion has substantially no square edges.
Claim 13
Dependent Claim
16 words
The apparatus of claim 1, wherein the electrode distal end has a substantially disc shaped geometry.
Claim 14
Dependent Claim
62 words
The apparatus of claim 1, wherein the electrode has a central lumen for receiving an electrolytic gel from an electrolytic gel source, and delivering the electrolytic gel to the collagen fibers through a plurality of apertures formed in the electrode distal end, the electrolytic gel serving to provide a substantially uniform distribution of thermal energy from the electrode to the collagen fibers.
Claim 15
Dependent Claim
18 words
The apparatus of claim 1, wherein the energy delivering distal electrode portion has an oval cross sectional geometry.
Claim 16
Dependent Claim
16 words
The apparatus of claim 1, wherein the electrode distal end has an oval cross sectional geometry.
Claim 17
Dependent Claim
49 words
The apparatus of claim 4 wherein the electrode distal end further includes a second electrode distal end portion and an insulation layer covering the second portion of the electrode distal end, the insulating layer preventing the second portion of the electrode distal end from delivering energy to the tissue.
Claim 18
Dependent Claim
30 words
The apparatus of claim 15 wherein the plurality of apertures formed in the electrode distal end are positioned at the energy delivering distal electrode portion of the electrode distal end.
Claim 19
Dependent Claim
46 words
The apparatus of claim 5 wherein the electrode distal end further includes a second electrode distal end portion and an insulation layer covering the second portion of the electrode distal end, the insulating layer preventing the second portion of the electrode distal end from delivering energy.
Claim 20
Dependent Claim
30 words
The apparatus of claim 17 wherein the plurality of apertures formed in the electrode distal end are positioned at the energy delivering distal electrode portion of the electrode distal end.
Claim 21
Dependent Claim
46 words
The apparatus of claim 12 wherein the electrode distal end further includes a second electrode distal end portion and an insulation layer covering the second portion of the electrode distal end, the insulating layer preventing the second portion of the electrode distal end from delivering energy.
Claim 22
Dependent Claim
30 words
The apparatus of claim 19 wherein the plurality of apertures formed in the electrode distal end are positioned at the energy delivering distal electrode portion of the electrode distal end.
Claim 23
Dependent Claim
46 words
The apparatus of claim 12 wherein the electrode distal end further includes a second electrode distal end portion and an insulation layer covering the second portion of the electrode distal end, the insulating layer preventing the second portion of the electrode distal end from delivering energy.
Claim 24
Dependent Claim
30 words
The apparatus of claim 21 wherein the plurality of apertures formed in the electrode distal end are positioned at the energy delivering distal electrode portion of the electrode distal end.
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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) | 1998-10-16 | 1999-04-17 | 1999-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-16 | 2003-04-17 | 2003-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-16 | 2007-04-17 | 2007-10-17 | $7700.00 | Window Closed / Lapsed |