US6274963B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods and devices for controlling the vibration of ultrasonic transmission components
Assignee: Ethicon Endo Surgery Inc
•
Filing: 1999-08-31
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Granted: 2001-08-14
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Expires: 2019-08-31
Abstract
Abstract A transducer assembly in accordance with the present invention includes at least one transducer element having a first end and a second end. A first electrode is coupled to the first end and a segmented electrode is coupled to the second end. The segmented electrode is adapted to allow the transducer element to be simultaneously driven by a plurality of electric signals. A generator in accordance with the present invention includes a frequency control loop to generate an electrical signal having a desired level of vibration. A first amplifier having a selected gain receives the electrical signal from the frequency control loop. The first amplifier generates a first output signal to drive the transducer element. A second amplifier having a selected gain receives the electrical signal from the frequency control loop. The second amplifier generates a second output signal to drive the transducer element.
Inventors
- 👤 Brian Estabrook
- 👤 Scott Kellogg
- 👤 Stephen J. Alam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:39
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/320068; B; B06; B06B; B06B1/00; B06B1/02; B06B1/0207; B06B1/0223; B06B1/0269; B06B1/0276; B06B1/06; B06B1/0607; B06B1/0611; B06B1/0614; B06B1/0618; B06B1/0622; G; G10; G10K; G10K11/00; G10K11/02; A61B2017/00017; A61B2017/00132; A61B2017/00973; A61B2017/320069; A61B2017/320071; A61B2017/320089; B06B2201/00; B06B2201/70; B06B2201/76
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
75 words
A generator to drive at least one transducer element comprising: a phase lock loop; a zero crossing detector coupled to the phase lock loop; a filtering device coupled to the phase lock loop and to a plurality of amplifiers; the plurality of amplifiers generating a plurality of signals to drive the at least one transducer element; and a control device coupled to each of the plurality of amplifiers to adjust the gain of the amplifiers.
Claim 2
Dependent Claim
75 words
A generator to drive at least one transducer element comprising: a phase lock loop; a zero crossing detector coupled to the phase lock loop; a filtering device coupled to the phase lock loop and to a plurality of amplifiers; the plurality of amplifiers generating a plurality of signals to drive the at least one transducer element; and a control device coupled to each of the plurality of amplifiers to adjust the gain of the amplifiers.
Claim 3
Dependent Claim
26 words
The generator of claim 1 further comprising a plurality of sensors coupled to a respective output of the plurality of amplifiers to detect the drive signal.
Claim 4
Dependent Claim
22 words
The generator of claim 1 wherein the drive signal comprises one of a voltage signal, current signal, impedance signal, and phase signal.
Claim 5
Dependent Claim
19 words
The generator of claim 1 further comprising a plurality of inductors coupled to a respective output of the amplifiers.
Claim 6
Independent Claim
86 words
A method of driving at least one transducer element comprising the steps of: i) providing a phase lock loop; ii) providing a zero crossing detector coupled to said phase lock loop; iii) providing a filtering device coupled to said phase lock loop and to a plurality of amplifiers; said plurality of amplifiers generating a plurality of signals to drive the at least one transducer element; and iv) providing a control device coupled to each of said plurality of amplifiers to adjust the gain of said amplifiers.
Claim 7
Independent Claim
86 words
A method of driving at least one transducer element comprising the steps of: i) providing a phase lock loop; ii) providing a zero crossing detector coupled to said phase lock loop; iii) providing a filtering device coupled to said phase lock loop and to a plurality of amplifiers; said plurality of amplifiers generating a plurality of signals to drive the at least one transducer element; and iv) providing a control device coupled to each of said plurality of amplifiers to adjust the gain of said amplifiers.
Claim 8
Dependent Claim
30 words
The method of claim 5 further comprising the step of providing a plurality of sensors coupled to the respective outputs of said plurality of amplifiers to detect the drive signal.
Claim 9
Dependent Claim
22 words
The method of claim 6 wherein said drive signal comprises one of a voltage signal, current signal, impedance signal, and phase signal.
Claim 10
Dependent Claim
24 words
The method of claim 6 further comprising the step of providing a plurality of inductors, each coupled to a respective output of said amplifiers.
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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) | 2004-08-13 | 2005-02-12 | 2005-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-08-13 | 2009-02-12 | 2009-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-08-13 | 2013-02-12 | 2013-08-14 | $7700.00 | Window Closed / Lapsed |