Patent US5015227A successfully refreshed from Google Patents.
US5015227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for providing enhanced tissue fragmentation and/or hemostasis
Assignee: Integra Lifesciences Ireland Ltd
•
Filing: 1990-04-03
•
Granted: 1991-05-14
•
Expires: 2010-04-03
Abstract
Abstract An improved device for delivering RF current to the operating tool of an ultrasonic surgical apparatus which comprises a switch module for selecting said RF current, an electrically conducting metal band connected to the switch module and an electrically conductive O-ring in electrical contact with the metal band and located around the acoustic conecting member of the apparatus.
Inventors
- 👤 Alan Broadwin
- 👤 Joseph N. Logan
- 👤 Peter J. Kuhl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:53
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/22; A61B17/22004; A61B17/22012; A61B17/32; A61B17/320068; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B2017/00973; A61B2017/320084; A61B2018/00005; A61B2018/00011; A61B2018/00053; A61B2018/00059; A61B2018/00071; A61B2018/00077; A61B2018/00571; A61B2018/00589; A61B2018/0091; A61B2018/00916; A61B2018/00958; H; H01; H01H; H01H2300/00; H01H2300/014
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
142 words
In a surgical apparatus for performing one or more surgical procedures at a surgical site on a patient comprising: a handpiece; a tool supported by said hand-piece; said tool having a vibrating tool tip; vibrating means including a metal connecting member for ultrasonically vibrating said tool tip; and RF current means selectively operable for providing an RF current to said tool tip for allowing performance of an electrosurgical procedure at the surgical site; said RF current means including switching means for switching the RF current provided to said tool tip to at least an RF cutting current during ultrasonic vibration, the improvement wherein said switching means comprises a switch module for selecting said RF current, an electrically conducting metal band connected to said switch module and an electrically conductive O-ring around said connecting member and in electrical contact with said metal band.
Claim 2
Dependent Claim
142 words
In a surgical apparatus for performing one or more surgical procedures at a surgical site on a patient comprising: a handpiece; a tool supported by said hand-piece; said tool having a vibrating tool tip; vibrating means including a metal connecting member for ultrasonically vibrating said tool tip; and RF current means selectively operable for providing an RF current to said tool tip for allowing performance of an electrosurgical procedure at the surgical site; said RF current means including switching means for switching the RF current provided to said tool tip to at least an RF cutting current during ultrasonic vibration, the improvement wherein said switching means comprises a switch module for selecting said RF current, an electrically conducting metal band connected to said switch module and an electrically conductive O-ring around said connecting member and in electrical contact with said metal band.
Claim 3
Dependent Claim
24 words
An apparatus according to claim 1, in which said conductive O-ring is made from an elastomer impregnated with electrically-conducting particles of silver coated aluminum.
Claim 4
Dependent Claim
25 words
An apparatus according to claim 1, in which said electrically conducting metal band is connected to the switch module through an electrically conducting bifurcated terminal.
Claim 5
Dependent Claim
64 words
An apparatus according to claim 1, in which said tool tip has a tip opening and a tool passageway therethrough communicating with said tip opening, and the apparatus includes aspirating means for applying a suction pressure on said tool passageway for aspirating tissue particles and fluid at the surgical site through said tip opening through said tool passageway and away from the surgical site.
References Cited (Backward Citations)
US2714890A
Cited
US3589363A
Cited
US3636943A
Cited
US3693613A
Cited
US3815604A
Cited
DE2460481A1
Cited
US4063557A
Cited
US4378801A
Cited
US4562838A
Cited
US4552143A
Cited
US4492832A
Cited
US4674498A
Cited
WO1987001276A1
Cited
US4750902A
Cited
WO1987006116A1
Cited
US4747820A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-05-13 | 1994-11-12 | 1995-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-13 | 1998-11-12 | 1999-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-13 | 2002-11-12 | 2003-05-14 | $7700.00 | Window Closed / Lapsed |