WO1997047249A1 - Electrosurgical instrument with conductive ceramic or cermet and method of making same - Google Patents
Electrosurgical instrument with conductive ceramic or cermet and method of making same Download PDFInfo
- Publication number
- WO1997047249A1 WO1997047249A1 PCT/US1997/010146 US9710146W WO9747249A1 WO 1997047249 A1 WO1997047249 A1 WO 1997047249A1 US 9710146 W US9710146 W US 9710146W WO 9747249 A1 WO9747249 A1 WO 9747249A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carbide
- electrosurgical instrument
- cermet
- ceramic
- ceramics
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00107—Coatings on the energy applicator
- A61B2018/00119—Coatings on the energy applicator with metal oxide nitride
Definitions
- the conducting ceramic or cermet active electrode surface is supported on a metal core
- the conducting ceramic or cermet may contain a metal component that is the same metal as the metal core.
- the electrosurgical instrument may be fabricated by contacting the metal core with carbon, boron, nitride, or conductive ceramic/ cermet mixture to produce a coating on a surface of the metal core.
- the active electrode surface is maintained at the desired electrical potential by a means for maintaining the active electrode surface at a desired electrical potential, as is well known in the art. See for example, U.S. Patents No. 4,927,420 and 5,007,908, both of which are incorporated herein by reference.
- cermets that may be used in the present invention include materials composed of one or more metals together with a carbide, boride, or nitride ceramic (or mixture thereof) .
- suitable metals include Ag, Cu, Pt, Ta, V, Co, Ni, Fe, Mo, Ti, Hf, Zr, Nb, W and Al and examples of suitable ceramics include WC, TiC, TiB 2 , TiN and B 4 C.
- the cermets of the present invention may be prepared using conventional methods including cold press and sintering, hot pressing, isostatic hot pressing, and molten metal infiltrating.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10501806A JP2000512521A (en) | 1996-06-12 | 1997-06-11 | Electrosurgical instrument using conductive ceramic or cermet and method of manufacturing the same |
EP97931124A EP0912141A4 (en) | 1996-06-12 | 1997-06-11 | Electrosurgical instrument with conductive ceramic or cermet and method of making same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/661,980 | 1996-06-12 | ||
US08/661,980 US5925039A (en) | 1996-06-12 | 1996-06-12 | Electrosurgical instrument with conductive ceramic or cermet and method of making same |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997047249A1 true WO1997047249A1 (en) | 1997-12-18 |
Family
ID=24655896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1997/010146 WO1997047249A1 (en) | 1996-06-12 | 1997-06-11 | Electrosurgical instrument with conductive ceramic or cermet and method of making same |
Country Status (5)
Country | Link |
---|---|
US (1) | US5925039A (en) |
EP (1) | EP0912141A4 (en) |
JP (1) | JP2000512521A (en) |
CA (1) | CA2258026A1 (en) |
WO (1) | WO1997047249A1 (en) |
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WO2013023740A1 (en) * | 2011-08-15 | 2013-02-21 | Olympus Winter & Ibe Gmbh | Shaft of a laparoscopic instrument |
US9320562B2 (en) | 2009-02-03 | 2016-04-26 | Aesculap Ag | Surgical instrument |
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US5007908A (en) * | 1989-09-29 | 1991-04-16 | Everest Medical Corporation | Electrosurgical instrument having needle cutting electrode and spot-coag electrode |
US5071419A (en) * | 1990-04-30 | 1991-12-10 | Everest Medical Corporation | Percutaneous laparoscopic cholecystectomy instrument |
US5331971A (en) * | 1990-05-10 | 1994-07-26 | Symbiosis Corporation | Endoscopic surgical instruments |
US5192280A (en) * | 1991-11-25 | 1993-03-09 | Everest Medical Corporation | Pivoting multiple loop bipolar cutting device |
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-
1996
- 1996-06-12 US US08/661,980 patent/US5925039A/en not_active Expired - Fee Related
-
1997
- 1997-06-11 CA CA002258026A patent/CA2258026A1/en not_active Abandoned
- 1997-06-11 JP JP10501806A patent/JP2000512521A/en active Pending
- 1997-06-11 WO PCT/US1997/010146 patent/WO1997047249A1/en not_active Application Discontinuation
- 1997-06-11 EP EP97931124A patent/EP0912141A4/en not_active Withdrawn
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US4674498A (en) | 1983-07-06 | 1987-06-23 | Everest Medical Corporation | Electro cautery surgical blade |
US4802476A (en) | 1987-06-01 | 1989-02-07 | Everest Medical Corporation | Electro-surgical instrument |
US4862890A (en) * | 1988-02-29 | 1989-09-05 | Everest Medical Corporation | Electrosurgical spatula blade with ceramic substrate |
US4922903A (en) | 1988-10-06 | 1990-05-08 | Everest Medical Corporation | Handle for electro-surgical blade |
US4927420A (en) | 1988-11-14 | 1990-05-22 | Colorado Biomedical, Inc. | Ultra-sharp tungsten needle for electrosurgical knife |
US5396900A (en) | 1991-04-04 | 1995-03-14 | Symbiosis Corporation | Endoscopic end effectors constructed from a combination of conductive and non-conductive materials and useful for selective endoscopic cautery |
US5217458A (en) | 1992-04-09 | 1993-06-08 | Everest Medical Corporation | Bipolar biopsy device utilizing a rotatable, single-hinged moving element |
US5342381A (en) | 1993-02-11 | 1994-08-30 | Everest Medical Corporation | Combination bipolar scissors and forceps instrument |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007055417A1 (en) * | 2007-11-20 | 2009-06-04 | Aesculap Ag | Surgical forceps comprises handle part comprising two branches pressable against each other, forceps head carried by the handle part, fixing elements and locking means for protecting the elements and the branches against axial displacement |
DE102007055417B4 (en) * | 2007-11-20 | 2011-04-14 | Aesculap Ag | Surgical forceps |
US9320562B2 (en) | 2009-02-03 | 2016-04-26 | Aesculap Ag | Surgical instrument |
EP2292172A1 (en) * | 2009-09-02 | 2011-03-09 | Tyco Healthcare Group, LP | Electrosurgical electrode with insulative coating |
US8398625B2 (en) | 2009-09-02 | 2013-03-19 | Covidien Lp | Electrosurgical electrode with insulative coating |
WO2013023740A1 (en) * | 2011-08-15 | 2013-02-21 | Olympus Winter & Ibe Gmbh | Shaft of a laparoscopic instrument |
US9517057B2 (en) | 2011-08-15 | 2016-12-13 | Olympus Winter & Ibe Gmbh | Shaft of a laparoscopic instrument |
Also Published As
Publication number | Publication date |
---|---|
EP0912141A1 (en) | 1999-05-06 |
US5925039A (en) | 1999-07-20 |
EP0912141A4 (en) | 1999-12-15 |
JP2000512521A (en) | 2000-09-26 |
CA2258026A1 (en) | 1997-12-18 |
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