US5669922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonically driven blade with a radial hook that defines a circular recess
Assignee: Individual
•
Filing: 1996-02-20
•
Granted: 1997-09-23
•
Expires: 2016-02-20
Abstract
Abstract An ultrasonically driven blade which has a radial hook. The radial hook defines a recess that has a circular cross-section. The radially hook shape blade has a relatively small amount of mass located at an anti-node of the blade assembly. The relatively light anti-nodal tip provides a large energy gain and efficiently transfers ultrasonic energy to surrounding tissue. Additionally, the ultrasonic energy is transferred from the hook to tissue primarily along a longitudinal axis of the blade, thereby increasing the energy efficiency of the overall assembly.
Inventors
- 👤 Larry Hood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:13
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/320068; A61B2017/00017; A61B2017/00137; A61B2017/00141; A61B2017/00146; A61B2017/0015; A61B2017/320072; A61B2017/320078; A61B2017/320089
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
72 words
An ultrasonic blade, comprising: a blade which has a proximal end, a distal end and a pair of steps located between said proximal and distal ends, said blade having a hook at said distal end and a tip the extends toward said proximal end, said blade having a uniform width from said proximal end to said distal end, and said hook having a diameter that is no greater than said blade width.
Claim 2
Dependent Claim
72 words
An ultrasonic blade, comprising: a blade which has a proximal end, a distal end and a pair of steps located between said proximal and distal ends, said blade having a hook at said distal end and a tip the extends toward said proximal end, said blade having a uniform width from said proximal end to said distal end, and said hook having a diameter that is no greater than said blade width.
Claim 3
Dependent Claim
27 words
The blade as recited in claim 1, wherein said blade has a first anti-node located at said proximal end and a second anti-node located at said hook.
Claim 4
Dependent Claim
20 words
The blade as recited in claim 1, wherein said hook extends from an arm which has a radius of curvature.
Claim 5
Dependent Claim
18 words
The blade as recited in claim 1, further comprising a sleeve that couples said blade to an extender.
Claim 6
Dependent Claim
22 words
The blade as recited in claim 4, wherein said sleeve has a plurality of pins that are coupled to a voltage source.
Claim 7
Dependent Claim
24 words
The blade as recited in claim 4, wherein said sleeve has a plurality of lumens that are coupled to a source of pressurized air.
Claim 8
Dependent Claim
24 words
The blade as recited in claim 4, wherein said sleeve has a plurality of lumens that are coupled to a source of argon gas.
Claim 9
Dependent Claim
47 words
An ultrasonic blade assembly, comprising: a blade with a radial hook that defines a recess which has a circular cross-section, said hook extends from an arm that has a pair of steps located at a node of said blade; and, a vibrating device that vibrates said blade.
Claim 10
Dependent Claim
47 words
An ultrasonic blade assembly, comprising: a blade with a radial hook that defines a recess which has a circular cross-section, said hook extends from an arm that has a pair of steps located at a node of said blade; and, a vibrating device that vibrates said blade.
Claim 11
Dependent Claim
25 words
The assembly as recited in claim 8, wherein said vibrating device moves said blade at a first frequency that is modulated by a second frequency.
Claim 12
Dependent Claim
20 words
The assembly as recited in claim 8, wherein said vibrating device switches between a first frequency and a second frequency.
Claim 13
Dependent Claim
27 words
The assembly as recited in claim 8, wherein said blade has a first anti-node located at a coupling end and a second anti-node located at said hook.
Claim 14
Dependent Claim
20 words
The assembly as recited in claim 8, wherein said hook extends from an arm which has a radius of curvature.
Claim 15
Dependent Claim
18 words
The assembly as recited in claim 8, further comprising a sleeve that couples said blade to an extender.
Claim 16
Dependent Claim
22 words
The assembly as recited in claim 13, wherein said sleeve has a plurality of pins that are coupled to a voltage source.
Claim 17
Dependent Claim
24 words
The assembly as recited in claim 13, wherein said sleeve has a plurality of lumens that are coupled to a source of pressurized air.
Claim 18
Dependent Claim
24 words
The assembly as recited in claim 13, wherein said sleeve has a plurality of lumens that are coupled to a source of argon gas.
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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) | 2000-09-22 | 2001-03-24 | 2001-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-09-22 | 2005-03-24 | 2005-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-09-22 | 2009-03-24 | 2009-09-23 | $7700.00 | Window Closed / Lapsed |