US5199943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic surgical handpiece
Assignee: Alcon Research LLC
•
Filing: 1991-12-12
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Granted: 1993-04-06
•
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 12:55
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.
References Cited (Backward Citations)
US3589363A
Cited
US3693613A
Cited
US4180074A
Cited
US4223676A
Cited
US4428748A
Cited
US4515583A
Cited
US4808154A
Cited
US4652255A
Cited
US4578059A
Cited
US4609368A
Cited
US4573979A
Cited
US4634420A
Cited
US4804364A
Cited
US4816018A
Cited
US4643717A
Cited
US4787889A
Cited
US4983160A
Cited
US4681561A
Cited
US4816017A
Cited
US4922902A
Cited
US4705500A
Cited
WO1988003783A1
Cited
US5058570A
Cited
US4886060A
Cited
DE3826414A1
Cited
US4869715A
Cited
US5123903A
Cited
US5151084A
Cited
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 |