Patent US1718982A successfully refreshed from Google Patents.
Patent US4657549A successfully refreshed from Google Patents.
US4657549A
Expired / Lapsed
US
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Anchoring rod for tubular bones
Assignee: Waldemar Link GmbH and Co KG
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Filing: 1985-08-07
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Granted: 1987-04-14
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Expires: 2005-08-07
Abstract
Abstract A device for anchoring a tension element in a tubular bone comprises an anchoring device attached eccentrically and in a hinged manner on the end of the tension element, the longitudinal dimension of the anchoring device being somewhat larger than the diameter of the medullary canal.
Inventors
- 👤 Arnold Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:53
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/72; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/30721; A61F2/30723; A61F2/30749; A61F2/30767; A61F2/30771; A61F2002/30904; A61F2220/00; A61F2220/0008
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
69 words
Apparatus for anchoring a tubular bone having a medullary cavity of a given diameter, said apparatus comprising: a tension rod; an ablong plate having a longitudinal axis greater than said given diameter, a transverse axis less than said given diameter, and an eccentric hole sized for loose passage of said tension rod therethrough; and first and second heads along said tension rod capable of retaining said oblong plate therebetween.
Claim 2
Dependent Claim
69 words
Apparatus for anchoring a tubular bone having a medullary cavity of a given diameter, said apparatus comprising: a tension rod; an ablong plate having a longitudinal axis greater than said given diameter, a transverse axis less than said given diameter, and an eccentric hole sized for loose passage of said tension rod therethrough; and first and second heads along said tension rod capable of retaining said oblong plate therebetween.
Claim 3
Dependent Claim
16 words
Apparatus according to claim 1 in which said oblong plate has one edge of curved shape.
Claim 4
Dependent Claim
14 words
Apparatus according to claim 1 in which said oblong plate is oval in shape.
Claim 5
Dependent Claim
38 words
Apparatus according to claim 1, 19 or 20 further comprising serrations along the edges of said oblong plate at each end of said longitudinal axis capable of anchoring said plate to the inner surface of said medullary cavity.
Claim 6
Dependent Claim
20 words
Apparatus according to claim 1 in which said longitudinal axis is about 1.05 to about 1.4 times said given diameter.
Claim 7
Dependent Claim
48 words
Apparatus according to claim 1 further comprising means for applying elongating tension to said tension rod to tilt said oblong plate with respect thereto and thereby anchor the edges of said oblong plate at each end of said longitudinal axis against the inner surface of said medullary cavity.
Claim 8
Dependent Claim
109 words
Apparatus for anchoring a tubular bone having a medullar cavity of a given diameter, said apparatus comprising: a tension rod; a plate of oval shape, having a longitudinal axis greater than said given diameter, a transverse axis less than said given diameter, and serrations along the rim thereof at each end of said longitudinal axis, said plate being tiltably mounted to said tension rod at one end thereof at a point on said plate off-center along said longitudinal axis; and means at the other end of said tension rod for applying sufficient elongating tension to said tension rod to tilt said plate when resistance is applied to said serrations.
Claim 9
Dependent Claim
109 words
Apparatus for anchoring a tubular bone having a medullar cavity of a given diameter, said apparatus comprising: a tension rod; a plate of oval shape, having a longitudinal axis greater than said given diameter, a transverse axis less than said given diameter, and serrations along the rim thereof at each end of said longitudinal axis, said plate being tiltably mounted to said tension rod at one end thereof at a point on said plate off-center along said longitudinal axis; and means at the other end of said tension rod for applying sufficient elongating tension to said tension rod to tilt said plate when resistance is applied to said serrations.
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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) | 1990-04-13 | 1990-10-13 | 1991-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-13 | 1994-10-13 | 1995-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-13 | 1998-10-13 | 1999-04-14 | $7700.00 | Window Closed / Lapsed |