US5458601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable ligament anchor
Assignee: MUSC Foundation for Research and Development
•
Filing: 1994-03-28
•
Granted: 1995-10-17
•
Expires: 2014-03-28
Abstract
Abstract The invention provides an adjustable ligament anchor for attaching a ligament to a bone. The ligament anchor comprises a housing having an exterior surface, an interior surface, an intra-articular end and an opposite extra-articular end. The interior surface defines a bore that extends longitudinally through the housing, joining the ends. A member is dimensioned to be received within the bore and having a first end and an opposite second end, wherein the ligament is attached to the first end. Adjusting means comprise a longitudinal chamber opening through the second end, and extending into at least a portion of the member. The chamber has threads and is dimensioned to receive a screw having a shaft with threads complimentary to threads in chamber.
Inventors
- 👤 Franklin A. Young, Jr.
- 👤 Yuehuei An
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:34
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/08; A61F2/0811; A61B; A61B17/00; A61B17/04; A61B17/0401; A61B2017/044; A61B2017/0496; A61F2/0805; A61F2/30; A61F2/30721; A61F2/30749; A61F2/30767; A61F2/30771; A61F2002/0876; A61F2002/0882; A61F2002/30001; A61F2002/30108; A61F2002/3011; A61F2002/30138; A61F2002/30143; A61F2002/30316; A61F2002/30329; A61F2002/30331; A61F2002/30362; A61F2002/3037; A61F2002/30372; A61F2002/30383; A61F2002/3039; A61F2002/30398; A61F2002/30405; A61F2002/30535; A61F2002/30537; A61F2002/30553; A61F2002/3085; A61F2220/00; A61F2220/0008; A61F2220/0025; A61F2220/0033; A61F2230/00; A61F2230/0002; A61F2230/0017; A61F2250/00; A61F2250/0004; A61F2250/0008; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00017; A61F2310/00023; A61F2310/00029; A61F2310/00035; A61F2310/00131
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
178 words
An adjustable ligament anchor for attaching a ligament to a bone using a ligament attaching means, comprising: (a) a housing having an exterior surface, an intra-articular end and an opposite extra-articular end and an interior surface defining a bore extending longitudinally through the housing, joining the ends; (b) a member dimensioned to be received within the bore and having a first end and an opposite second end; (c) a longitudinal chamber opening through the second end, and extending into a portion of the member, wherein the chamber is threaded; (d) a screw having a shaft with threads thereon being complimentary to the threads in the chamber, and having a head on one end of the shaft adjacent the extra-articular end of the housing, the head being formed of a portion of the shaft having a larger cross-sectional dimension than the shaft adjacent the head, wherein the largest cross-sectional dimension of the head is larger than the smallest cross-sectional dimension of the bore; and (e) means on the first end of the member for receiving the ligament attaching means.
Claim 2
Dependent Claim
178 words
An adjustable ligament anchor for attaching a ligament to a bone using a ligament attaching means, comprising: (a) a housing having an exterior surface, an intra-articular end and an opposite extra-articular end and an interior surface defining a bore extending longitudinally through the housing, joining the ends; (b) a member dimensioned to be received within the bore and having a first end and an opposite second end; (c) a longitudinal chamber opening through the second end, and extending into a portion of the member, wherein the chamber is threaded; (d) a screw having a shaft with threads thereon being complimentary to the threads in the chamber, and having a head on one end of the shaft adjacent the extra-articular end of the housing, the head being formed of a portion of the shaft having a larger cross-sectional dimension than the shaft adjacent the head, wherein the largest cross-sectional dimension of the head is larger than the smallest cross-sectional dimension of the bore; and (e) means on the first end of the member for receiving the ligament attaching means.
Claim 3
Dependent Claim
11 words
The anchor of claim 1, wherein the exterior surface is non-uniform.
Claim 4
Dependent Claim
11 words
The anchor of claim 2, wherein the exterior surface is crenulated.
Claim 5
Dependent Claim
11 words
The anchor of claim 2, wherein the exterior surface is threaded.
Claim 6
Dependent Claim
11 words
The anchor of claim 2, wherein the exterior surface is beaded.
Claim 7
Dependent Claim
57 words
The anchor of claim 1, wherein the surface defining the bore defines a slot extending through at least a portion of the bore, and wherein the member has an exterior surface defining a longitudinally extending key dimensioned to be received within the slot, whereby the member is prevented from rotating about its longitudinal axis within the bore.
Claim 8
Dependent Claim
44 words
The anchor of claim 1, wherein the surface defining the bore defines an area of reduced diameter, forming a subchamber adjacent the extra-articular end, and wherein the shaft is dimensioned to pass through the area of reduced diameter and is rotatable within the bore.
Claim 9
Dependent Claim
29 words
The anchor of claim 7, wherein the largest cross-sectional dimension of the head is larger than the largest cross-sectional dimension of the bore in the area of reduced diameter.
Claim 10
Dependent Claim
23 words
The anchor of claim 8, wherein the largest cross-sectional dimension of the head is smaller than the smallest cross-sectional dimension of the subchamber.
References Cited (Backward Citations)
US2112007A
Cited
GB2078528A
Cited
US5084050A
Cited
EP0232049A1
Cited
US4772286A
Cited
US4828562A
Cited
US4870957A
Cited
US5108433A
Cited
US5151104A
Cited
US5129902A
Cited
US5108431A
Cited
US5100405A
Cited
US5152790A
Cited
US5116337A
Cited
FR2688689A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-10-16 | 1999-04-17 | 1999-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-16 | 2003-04-17 | 2003-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-16 | 2007-04-17 | 2007-10-17 | $7700.00 | Window Closed / Lapsed |