US7163548B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic surgical blade and instrument having a gain step
Assignee: Cilag GmbH International
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Filing: 2003-11-05
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Granted: 2007-01-16
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Expires: 2023-11-05
Abstract
Abstract An ultrasonic surgical blade, and an instrument, having a gain step. The blade body has, in any half wave length of the ultrasonic-surgical-blade body, a first vibration antinode, a vibration node, a second vibration antinode, and a gain step. The gain step is located between the second vibration antinode and the first vibration antinode. The gain step is spaced apart from the vibration node by a gain-step distance greater than 5% of the distance between the second vibration antinode and the first vibration antinode. The instrument includes the blade, a handpiece having an ultrasonic transducer, and an ultrasonic transmission rod whose proximal end is operatively connected to the ultrasonic transducer and whose distal end activates the blade. In one option, the first vibration antinode is the distal tip, and the gain step is located between the vibration node and the distal tip, resulting in an increased active length of the blade.
Inventors
- 👤 Foster B. Stulen
- 👤 Steven K. Neuenfeldt
- 👤 Kevin L. Houser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:03
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/320068; A61B17/22; A61B18/00; A61B18/18; A61B18/20; A61B18/22; A61B18/26; A61M; A61M1/00; A61B17/22004; A61B17/22012; A61B2017/22014; A61B2017/22015; A61B2017/22018; A61B2017/320072; A61B2017/32008; A61B2017/320089; A61B2217/00; A61B2217/002; A61B2217/005
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
80 words
An ultrasonic surgical blade comprising an ultrasonic-surgical-blade body having a distal tip which is a most-distal vibration antinode, having a most-distal vibration node, having a second-most-distal vibration antinode, and having a gain step, wherein the gain step is disposed between the second-most-distal vibration antinode and the distal tip, and wherein the gain step is spaced apart from the most-distal vibration node by a gain-step distance greater than 5% of the distance between the second-most-distal vibration antinode and the distal tip.
Claim 2
Dependent Claim
80 words
An ultrasonic surgical blade comprising an ultrasonic-surgical-blade body having a distal tip which is a most-distal vibration antinode, having a most-distal vibration node, having a second-most-distal vibration antinode, and having a gain step, wherein the gain step is disposed between the second-most-distal vibration antinode and the distal tip, and wherein the gain step is spaced apart from the most-distal vibration node by a gain-step distance greater than 5% of the distance between the second-most-distal vibration antinode and the distal tip.
Claim 3
Dependent Claim
31 words
The ultrasonic surgical blade of claim 1 , wherein the gain-step distance is bedtween substantially 25% and substantially 45% of the distance between the second-most-distal vibration antinode and the distal tip.
Claim 4
Dependent Claim
45 words
The ultrasonic surgical blade of claim 1 , wherein, between the second-most-distal vibration antinode and the distal tip, the maximum vibration amplitude of the ultrasonic-surgical-blade body proximal the gain step is less than the maximum vibration amplitude of the ultrasonic-surgical-blade body distal the gain step.
Claim 5
Dependent Claim
45 words
The ultrasonic surgical blade of claim 1 , wherein, between the second-most-distal vibration antinode and the distal tip, the maximum vibration amplitude of the ultrasonic-surgical-blade body proximal the gain step is greater than the maximum vibration amplitude of the ultrasonic-surgical-blade body distal the gain step.
Claim 6
Dependent Claim
23 words
The ultrasonic surgical blade of claim 1 , wherein the gain step is disposed between the most-distal vibration node and the distal tip.
Claim 7
Dependent Claim
24 words
The ultrasonic surgical blade of claim 1 , wherein the gain step is disposed between the most-distal vibration node and the second-most-distal vibration antinode.
Claim 8
Dependent Claim
76 words
The ultrasonic surgical blade of claim 1 , wherein the ultrasonic-surgical-blade body has a longitudinal axis and consists essentially of a first geometric solid having a substantially constant first transverse cross-sectional area from the gain step to the distal tip and a second geometric solid having a substantially constant second transverse cross-sectional area from the gain step to the second-most-distal vibration antinode, wherein the second transverse cross-sectional area is different than the first transverse cross-sectional area.
Claim 9
Dependent Claim
43 words
The ultrasonic surgical blade of claim 7 , wherein the shape and size of the first external perimeter of the first transverse cross-sectional area is substantially equal to the shape and size of the second external perimeter of the second transverse cross-sectional area.
Claim 10
Dependent Claim
24 words
The ultrasonic surgical blade of claim 1 , wherein the ultrasonic-surgical-blade body has a longitudinal axis and is substantially symmetrical about the longitudinal axis.
Claim 11
Dependent Claim
90 words
The ultrasonic surgical blade of claim 1 , wherein the ultrasonic-surgical-blade body has an additional gain step which is spaced-apart from the gain step, which is disposed between the second-most-distal vibration antinode and the distal tip, and which is spaced apart from the most-distal vibration node by a gain-step distance greater than 5% of the distance between the second-most-distal vibration antinode and the distal tip, wherein the ultrasonic-surgical-blade body has a longitudinal axis and a longitudinally hole, and wherein the longitudinal hole has a shoulder defining the additional gain step.
Claim 12
Dependent Claim
124 words
An ultrasonic surgical instrument comprising: a) a handpiece including an ultrasonic transducer; b) an ultrasonic transmission rod having a proximal end and a distal end, wherein the proximal end is operatively connected to the ultrasonic transducer; and c) an ultrasonic surgical blade activated by the distal end and including an ultrasonic-surgical-blade body having a distal tip which is a most-distal vibration antinode, having a most-distal vibration node, having a second-most-distal vibration antinode, and having a gain step, wherein the gain step is disposed between the second-most-distal vibration antinode and the distal tip, and wherein the gain step is spaced apart from the most-distal vibration node by a gain-step distance greater than 5% of the distance between the second-most-distal vibration antinode and the distal tip.
Claim 13
Dependent Claim
124 words
An ultrasonic surgical instrument comprising: a) a handpiece including an ultrasonic transducer; b) an ultrasonic transmission rod having a proximal end and a distal end, wherein the proximal end is operatively connected to the ultrasonic transducer; and c) an ultrasonic surgical blade activated by the distal end and including an ultrasonic-surgical-blade body having a distal tip which is a most-distal vibration antinode, having a most-distal vibration node, having a second-most-distal vibration antinode, and having a gain step, wherein the gain step is disposed between the second-most-distal vibration antinode and the distal tip, and wherein the gain step is spaced apart from the most-distal vibration node by a gain-step distance greater than 5% of the distance between the second-most-distal vibration antinode and the distal tip.
Claim 14
Dependent Claim
82 words
An ultrasonic surgical blade comprising an ultrasonic-surgical-blade body having, in any half wave length of the ultrasonic-surgical-blade body, a first vibration antinode, a vibration node, a second vibration antinode, and a gain step, wherein the gain step is disposed between the second vibration antinode and the first vibration antinode, and wherein the gain step is spaced apart from the vibration node by a gain-step distance greater than 5% of the distance between the second vibration anti node and the first vibration antinode.
Claim 15
Dependent Claim
82 words
An ultrasonic surgical blade comprising an ultrasonic-surgical-blade body having, in any half wave length of the ultrasonic-surgical-blade body, a first vibration antinode, a vibration node, a second vibration antinode, and a gain step, wherein the gain step is disposed between the second vibration antinode and the first vibration antinode, and wherein the gain step is spaced apart from the vibration node by a gain-step distance greater than 5% of the distance between the second vibration anti node and the first vibration antinode.
References Cited (Backward Citations)
US5318570A
Cited
US5180363A
Cited
US5112300A
Cited
US5380274A
Cited
US5695510A
Cited
US5269297A
Cited
US5527273A
Cited
US5746756A
Cited
US5971949A
Cited
US6309400B2
Cited
US6328751B1
Cited
US6660017B2
Cited
US6227853B1
Cited
US6254623B1
Cited
US6432118B1
Cited
US6652547B2
Cited
US6773444B2
Cited
US6423082B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2010-01-15 | 2010-07-17 | 2011-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2014-01-15 | 2014-07-17 | 2015-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2018-01-15 | 2018-07-17 | 2019-01-16 | $7700.00 | Window Closed / Lapsed |