US5562659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-surgical instrument and method of fabrication
Assignee: MEDICAL COATINGS Corp
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Filing: 1992-09-09
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Granted: 1996-10-08
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Expires: 2012-09-09
Abstract
Abstract A method for producing an exceptionally durable electrical insulation coating for electro-surgical instrumentation with excellent insulative properties in the 500 KHZ to 1 MHZ frequency range which can drastically reduce, if not totally eliminate, many problems of current electrical insulation materials in use. A process of ceramic plasma deposition is used. A thin ceramic coating can be readily applied to new or existing mono/bipolar surgical instrumentation.
Inventors
- 👤 James R. Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:05
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1206; A61B18/1233; A61B2018/00053; A61B2018/00107; A61B2018/00119
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
54 words
An electro-surgical instrument comprising: (a) a surgical instrument substrate; (b) a durable ceramic coating on said substrate providing excellent electrical insulative properties to said substrate in the 500 KHZ to 1 MHZ frequency range and having a thickness of at least about 0.01 inches; and (c) a silicone sealant layer over said ceramic coating.
Claim 2
Dependent Claim
54 words
An electro-surgical instrument comprising: (a) a surgical instrument substrate; (b) a durable ceramic coating on said substrate providing excellent electrical insulative properties to said substrate in the 500 KHZ to 1 MHZ frequency range and having a thickness of at least about 0.01 inches; and (c) a silicone sealant layer over said ceramic coating.
Claim 3
Dependent Claim
25 words
The electro-surgical instrument of claim 1, wherein said durable ceramic being selected from the group consisting of aluminum oxide, magnesium oxide, zirconia yttria and zirconia-calcia.
Claim 4
Dependent Claim
17 words
The electro-surgical instrument of claim 1, wherein the thickness of said ceramic composite coating is 0.010-0.03 inches.
Claim 5
Dependent Claim
20 words
The electro-surgical instrument of claim 1, wherein a molybdenum bonding layer is present between said substrate and said ceramic coating.
Claim 6
Dependent Claim
35 words
The electro-surgical instrument of claim 1, wherein a molybdenum bonding layer is present between said substrate and said ceramic coating and an aluminum oxide and titanium dioxide color layer is present over said ceramic coating.
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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) | 1999-10-08 | 2000-04-08 | 2000-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-10-08 | 2004-04-08 | 2004-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-10-08 | 2008-04-08 | 2008-10-08 | $7700.00 | Window Closed / Lapsed |