US5993477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic bone anchor
Assignee: Ethicon Inc
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Filing: 1998-06-25
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Granted: 1999-11-30
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Expires: 2018-06-25
Abstract
Abstract Bone anchors, after insertion into bone, are designed to remain in place and provide a platform for holding tissue. An ultrasonic bone anchor is described, comprising a proximal end, a distal end, and a body between the proximal end of the bone anchor and the distal end of the bone anchor. There is an outer surface on the body of the bone anchor which may include at least one protrusion extending from the outer surface of the bone anchor body. A coupling element is located at the proximal end of the bone anchor. The ultrasonic bone anchor is adapted to reciprocate at an ultrasonic frequency with an excursion of 50 to 300 micrometers. An embodiment of the present invention includes an ultrasonic bone anchor wherein the coupling element includes threads formed in a right-hand screw pattern, and the protrusion is formed in a left-hand screw pattern. Alternately the threads may be formed in a left-hand pattern and the protrusion formed in a right-hand pattern.
Inventors
- 👤 Jeffrey J. Vaitekunas
- 👤 Narinderjit S. Sambi
- 👤 Navneet T. Sharma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:20
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/04; A61B17/0401; A61B2017/0409; A61B2017/044; A61B17/32; A61B17/320068; A61B2017/320071; A61B2017/320089
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
87 words
An ultrasonic bone anchor comprising: a proximal end, a distal end, a body between said proximal end of said bone anchor and said distal end of said bone anchor; an outer surface on said body of said bone anchor; a coupling element located at said proximal end of said bone anchor; and at least one protrusion extending from said outer surface of said bone anchor body; wherein said ultrasonic bone anchor is adapted to reciprocate at an ultrasonic frequency with an excursion of 50 to 300 micrometers.
Claim 2
Dependent Claim
87 words
An ultrasonic bone anchor comprising: a proximal end, a distal end, a body between said proximal end of said bone anchor and said distal end of said bone anchor; an outer surface on said body of said bone anchor; a coupling element located at said proximal end of said bone anchor; and at least one protrusion extending from said outer surface of said bone anchor body; wherein said ultrasonic bone anchor is adapted to reciprocate at an ultrasonic frequency with an excursion of 50 to 300 micrometers.
Claim 3
Dependent Claim
29 words
A bone anchor according to claim 1 wherein said coupling element includes threads formed in a right-hand screw pattern, and said protrusion is formed in a left-hand screw pattern.
Claim 4
Dependent Claim
29 words
A bone anchor according to claim 1 wherein said coupling element includes threads formed in a left-hand screw pattern, and said protrusion is formed in a right-hand screw pattern.
Claim 5
Dependent Claim
52 words
A bone anchor according to claim 1, said bone anchor body having a central portion between said distal end and said proximal end, said central portion having a length, wherein said protrusion is a thread, said thread having a thread pitch less than one turn per said bone anchor central portion length.
Claim 6
Dependent Claim
23 words
A bone anchor according to claim 4 wherein said thread pitch is about one quarter turn per said bone anchor central portion length.
Claim 7
Dependent Claim
16 words
A bone anchor according to claim 4, wherein said protrusion comprises a plurality of said threads.
Claim 8
Dependent Claim
116 words
An ultrasonic bone anchor comprising: a proximal end, a distal end, a body between said proximal end of said bone anchor and said distal end of said bone anchor; an outer surface on said body of said bone anchor; a coupling element located at said proximal end of said bone anchor; and at least one protrusion extending from said outer surface of said bone anchor body, wherein said protrusion is formed in a substantially straight line along said bone anchor body length, from said bone anchor proximal end to said bone anchor distal end; and wherein said ultrasonic bone anchor is adapted to reciprocate at an ultrasonic frequency with an excursion of 50 to 300 micrometers.
Claim 9
Dependent Claim
116 words
An ultrasonic bone anchor comprising: a proximal end, a distal end, a body between said proximal end of said bone anchor and said distal end of said bone anchor; an outer surface on said body of said bone anchor; a coupling element located at said proximal end of said bone anchor; and at least one protrusion extending from said outer surface of said bone anchor body, wherein said protrusion is formed in a substantially straight line along said bone anchor body length, from said bone anchor proximal end to said bone anchor distal end; and wherein said ultrasonic bone anchor is adapted to reciprocate at an ultrasonic frequency with an excursion of 50 to 300 micrometers.
Claim 10
Dependent Claim
95 words
An ultrasonic bone anchor comprising: a proximal end, a distal end, a body between said proximal end of said bone anchor and said distal end of said bone anchor; an outer surface on said body of said bone anchor; a coupling element located at said proximal end of said bone anchor, wherein said coupling element includes a tapered surface; and at least one protrusion extending from said outer surface of said bone anchor body, wherein said ultrasonic bone anchor is adapted to reciprocate at an ultrasonic frequency with an excursion of 50 to 300 micrometers.
Claim 11
Dependent Claim
95 words
An ultrasonic bone anchor comprising: a proximal end, a distal end, a body between said proximal end of said bone anchor and said distal end of said bone anchor; an outer surface on said body of said bone anchor; a coupling element located at said proximal end of said bone anchor, wherein said coupling element includes a tapered surface; and at least one protrusion extending from said outer surface of said bone anchor body, wherein said ultrasonic bone anchor is adapted to reciprocate at an ultrasonic frequency with an excursion of 50 to 300 micrometers.
Claim 12
Dependent Claim
52 words
A bone anchor according to claim 8, said bone anchor body having a central portion between said distal end and said proximal end, said central portion having a length, wherein said protrusion is a thread, said thread having a thread pitch less than one turn per said bone anchor central portion length.
Claim 13
Dependent Claim
23 words
A bone anchor according to claim 9 wherein said thread pitch is about one quarter turn per said bone anchor central portion length.
Claim 14
Dependent Claim
13 words
A bone anchor according to claim 9, comprising a plurality of said protrusions.
Claim 15
Dependent Claim
146 words
An ultrasonic bone anchor comprising: a proximal end, a distal end, a body between said proximal end of said bone anchor and said distal end of said bone anchor; said bone anchor body having a central portion between said distal end and said proximal end, said central portion having a length; an outer surface on said body of said bone anchor; a coupling element located at said proximal end of said bone anchor, wherein said coupling element includes a tapered surface; and at least one protrusion extending from said outer surface of said bone anchor body wherein said protrusion is formed in a substantially straight line along said bone anchor body length, from said bone anchor proximal end to said bone anchor distal end, and wherein said ultrasonic bone anchor is adapted to reciprocate at an ultrasonic frequency with an excursion of 50 to 300 micrometers.
Claim 16
Dependent Claim
146 words
An ultrasonic bone anchor comprising: a proximal end, a distal end, a body between said proximal end of said bone anchor and said distal end of said bone anchor; said bone anchor body having a central portion between said distal end and said proximal end, said central portion having a length; an outer surface on said body of said bone anchor; a coupling element located at said proximal end of said bone anchor, wherein said coupling element includes a tapered surface; and at least one protrusion extending from said outer surface of said bone anchor body wherein said protrusion is formed in a substantially straight line along said bone anchor body length, from said bone anchor proximal end to said bone anchor distal end, and wherein said ultrasonic bone anchor is adapted to reciprocate at an ultrasonic frequency with an excursion of 50 to 300 micrometers.
Claim 17
Dependent Claim
63 words
An ultrasonic bone anchor comprising: a proximal end, a distal end, a body between said proximal end of said bone anchor and said distal end of said bone anchor; and a coupling element located at said proximal end of said bone anchor; wherein said ultrasonic bone anchor is adapted to reciprocate at an ultrasonic frequency with an excursion of 50 to 300 micrometers.
Claim 18
Dependent Claim
63 words
An ultrasonic bone anchor comprising: a proximal end, a distal end, a body between said proximal end of said bone anchor and said distal end of said bone anchor; and a coupling element located at said proximal end of said bone anchor; wherein said ultrasonic bone anchor is adapted to reciprocate at an ultrasonic frequency with an excursion of 50 to 300 micrometers.
Claim 19
Dependent Claim
16 words
An ultrasonic bone anchor according to claim 13, wherein said coupling element includes a tapered surface.
Claim 20
Dependent Claim
17 words
An ultrasonic bone anchor according to claim 14, wherein said ultrasonic bone anchor comprises a polymeric material.
Claim 21
Dependent Claim
14 words
An ultrasonic bone anchor according to claim 13, wherein said coupling element includes threads.
Claim 22
Dependent Claim
17 words
An ultrasonic bone anchor according to claim 16, wherein said ultrasonic bone anchor comprises a polymeric material.
References Cited (Backward Citations)
US5019083A
Cited
US5318570A
Cited
US5413578A
Cited
US5441502A
Cited
US5449370A
Cited
US5417712A
Cited
US5411523A
Cited
US5520696A
Cited
US5522845A
Cited
RU2072801C1
Cited
JPH09173344A
Cited
US5662658A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-11-29 | 2003-05-31 | 2003-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-11-29 | 2007-05-31 | 2007-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-11-29 | 2011-05-31 | 2011-11-30 | $7700.00 | Window Closed / Lapsed |