Patent US5199943A successfully refreshed from Google Patents.
US5199943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic surgical handpiece
Assignee: Alcon Research LLC
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Filing: 1991-12-12
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Granted: 1993-04-06
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Expires: 2011-12-12
Abstract
Abstract An ultrasonic surgical handpiece having a generally hollow body with a reduced diameter portion at a free end and an interior surface, an ultrasonic horn coaxially mounted inside the body, terminating at the free end and defining a fluid flow passage at the reduced diameter portion and a spiral thread formed in the interior surface at the reduced diameter portion for reducing shearing of a fluid flowing through the fluid flow passage created by an ultrasonic vibration of the horn.
Inventors
- 👤 Peter Wypych
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:01
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/007; A61F9/00736; A61F9/00745; A61B; A61B17/00; A61B17/32; A61B17/320068; A61B2017/320084
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
94 words
An ultrasonic surgical handpiece, comprising: a) a generally rigid, hollow body having a reduced diameter portion at a free end and an interior surface; b) an ultrasonic piezo-electric horn coaxially mounted inside the body, terminating at the free end and defining a fluid flow passage between the horn and the interior surface of the body at the reduced diameter portion; and c) a spiral thread formed in the interior surface at the reduced diameter portion for reducing shearing created by ultrasonic vibration of the horn of a fluid flowing through the fluid flow passage.
Claim 2
Dependent Claim
94 words
An ultrasonic surgical handpiece, comprising: a) a generally rigid, hollow body having a reduced diameter portion at a free end and an interior surface; b) an ultrasonic piezo-electric horn coaxially mounted inside the body, terminating at the free end and defining a fluid flow passage between the horn and the interior surface of the body at the reduced diameter portion; and c) a spiral thread formed in the interior surface at the reduced diameter portion for reducing shearing created by ultrasonic vibration of the horn of a fluid flowing through the fluid flow passage.
Claim 3
Dependent Claim
97 words
An ultrasonic surgical handpiece, comprising: a) a generally rigid, hollow body having a reduced diameter portion at a free end and an interior surface; b) an ultrasonic piezo-electric horn coaxially mounted inside the body, terminating at the free end and defining a fluid flow passage between the horn and the interior surface of the body at the reduced diameter portion; and c) a plurality of spaced, concentric rings formed in the interior surface at the reduced diameter portion for reducing shearing created by ultrasonic vibration of the horn of a fluid flowing through the fluid flow passage.
Claim 4
Dependent Claim
97 words
An ultrasonic surgical handpiece, comprising: a) a generally rigid, hollow body having a reduced diameter portion at a free end and an interior surface; b) an ultrasonic piezo-electric horn coaxially mounted inside the body, terminating at the free end and defining a fluid flow passage between the horn and the interior surface of the body at the reduced diameter portion; and c) a plurality of spaced, concentric rings formed in the interior surface at the reduced diameter portion for reducing shearing created by ultrasonic vibration of the horn of a fluid flowing through the fluid flow passage.
Claim 5
Dependent Claim
98 words
An ultrasonic surgical handpiece, comprising: a) a generally rigid, hollow, stainless steel body having a reduced diameter portion at a free end and an interior surface; b) an ultrasonic piezo-electric horn having a bore coaxially mounted inside the body, the horn terminating at the free end and defining a fluid flow passage between the horn and the interior surface of the body at the reduced c) a spiral thread formed in the interior surface at the reduced diameter portion for reducing shearing created by ultrasonic vibration of the horn of a fluid flowing through the fluid flow passage.
Claim 6
Dependent Claim
98 words
An ultrasonic surgical handpiece, comprising: a) a generally rigid, hollow, stainless steel body having a reduced diameter portion at a free end and an interior surface; b) an ultrasonic piezo-electric horn having a bore coaxially mounted inside the body, the horn terminating at the free end and defining a fluid flow passage between the horn and the interior surface of the body at the reduced c) a spiral thread formed in the interior surface at the reduced diameter portion for reducing shearing created by ultrasonic vibration of the horn of a fluid flowing through the fluid flow passage.
Claim 7
Dependent Claim
104 words
An ultrasonic surgical handpiece, comprising: a) a generally rigid, hollow, stainless steel body having a reduced diameter portion at a free end and an interior surface; b) an ultrasonic piezo-electric horn having a bore coaxially mounted inside the body, the horn terminating at the free end and defining a fluid flow passage between the horn and the interior surface of the body at the reduced diameter portion; and c) a plurality of spaced, concentric rings formed in the interior surface at the reduced diameter portion for reducing shearing created by ultrasonic vibration of the horn of a fluid flowing through the fluid flow passage.
Claim 8
Dependent Claim
104 words
An ultrasonic surgical handpiece, comprising: a) a generally rigid, hollow, stainless steel body having a reduced diameter portion at a free end and an interior surface; b) an ultrasonic piezo-electric horn having a bore coaxially mounted inside the body, the horn terminating at the free end and defining a fluid flow passage between the horn and the interior surface of the body at the reduced diameter portion; and c) a plurality of spaced, concentric rings formed in the interior surface at the reduced diameter portion for reducing shearing created by ultrasonic vibration of the horn of a fluid flowing through the fluid flow passage.
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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) | 1996-04-05 | 1996-10-05 | 1997-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-05 | 2000-10-05 | 2001-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-05 | 2004-10-05 | 2005-04-06 | $7700.00 | Window Closed / Lapsed |