US5397330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Posterior cruciate ligament retractor for use in performing knee surgery
Assignee: Individual
•
Filing: 1994-02-08
•
Granted: 1995-03-14
•
Expires: 2014-02-08
Abstract
Abstract A method of performing knee surgery and retractors and a femoral distractor for use in performing such method are provided, said retractors including a PCL tibial retractor, lateral patellar retractor, collateral ligament retractor, posterior cruciate ligament retractor and unicompartmental retractor designed to cooperate with one another in performing such method.
Inventors
- 👤 E. Michael Mikhail
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:31
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/02; A61B17/025; A61B2017/0268
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
157 words
A posterior cruciate ligament retractor for use in performing knee surgery comprising: (a) a handle extending along a longitudinal axis; (b) an integral support extending downwardly from said handle when the portion of said handle adjacent thereto is in a horizontal position and following initially a curved path and then a straight line path, said integral support having spaced apart edges, said spaced apart integral support edges being parallel and each lying in a plane substantially parallel to said longitudinal axis; and (c) an integral tip extending from said integral support and following a curved path which is reverse in direction to the curved path of said integral support, said integral tip having a pair of edges, each converging inwardly toward one another directly from one of said integral support edges, said pair of edges tapering in a straight line path toward a vertical plane lying on said longitudinal axis and terminating in a point free end.
Claim 2
Dependent Claim
157 words
A posterior cruciate ligament retractor for use in performing knee surgery comprising: (a) a handle extending along a longitudinal axis; (b) an integral support extending downwardly from said handle when the portion of said handle adjacent thereto is in a horizontal position and following initially a curved path and then a straight line path, said integral support having spaced apart edges, said spaced apart integral support edges being parallel and each lying in a plane substantially parallel to said longitudinal axis; and (c) an integral tip extending from said integral support and following a curved path which is reverse in direction to the curved path of said integral support, said integral tip having a pair of edges, each converging inwardly toward one another directly from one of said integral support edges, said pair of edges tapering in a straight line path toward a vertical plane lying on said longitudinal axis and terminating in a point free end.
Claim 3
Dependent Claim
150 words
A posterior cruciate ligament retractor comprising: (a) a handle extending along a longitudinal axis; (b) an integral support extending downwardly from said handle when the portion of said handle adjacent thereto is in a horizontal position and following initially a curved Oath and then a straight line path, the breadth of said support being 0.43 inch +/-0.02 inch, and; (c) an integral tip extending from said integral support and following a curved path which is reverse in direction to the curved path of said integral support, said integral tip having edges tapering toward a vertical plane lying on said longitudinal axis and terminating in a pointed free end, said tip having a length of 1.10 inch +/-0.02 inch and two edges, each disposed at an angle of 4° +/-1° to vertical plane lying on said longitudinal axis, the end of said tip having a thickness of 0.045 inch +/-0.01 inch.
Claim 4
Dependent Claim
150 words
A posterior cruciate ligament retractor comprising: (a) a handle extending along a longitudinal axis; (b) an integral support extending downwardly from said handle when the portion of said handle adjacent thereto is in a horizontal position and following initially a curved Oath and then a straight line path, the breadth of said support being 0.43 inch +/-0.02 inch, and; (c) an integral tip extending from said integral support and following a curved path which is reverse in direction to the curved path of said integral support, said integral tip having edges tapering toward a vertical plane lying on said longitudinal axis and terminating in a pointed free end, said tip having a length of 1.10 inch +/-0.02 inch and two edges, each disposed at an angle of 4° +/-1° to vertical plane lying on said longitudinal axis, the end of said tip having a thickness of 0.045 inch +/-0.01 inch.
Claim 5
Dependent Claim
165 words
A posterior cruciate ligament retractor comprising: (a) a handle extending along a longitudinal axis; (b) an integral support extending downwardly from said handle when the portion of said handle adjacent thereto is in a horizontal position and following initially a curved path and then a straight line path; said integral support is disposed at an angle of 22° +/-1.5° from the adjacent handle portion and having a breadth of 0.43 inch +/-0.02 inch, and; (c) an integral tip extending from said integral support and following a curved path which is reverse in direction to the curved path of said integral support, said integral tip having edges tapering toward a vertical plane lying on said longitudinal axis and terminating in a pointed free end, said tip having a length of 1.10 inch +/-0.02 inch and two edges, each disposed at an angle of 4° +/-1° to vertical plane lying on said longitudinal axis, the end of said tip having a thickness of 0.045 inch +/-0.01 inch.
Claim 6
Dependent Claim
165 words
A posterior cruciate ligament retractor comprising: (a) a handle extending along a longitudinal axis; (b) an integral support extending downwardly from said handle when the portion of said handle adjacent thereto is in a horizontal position and following initially a curved path and then a straight line path; said integral support is disposed at an angle of 22° +/-1.5° from the adjacent handle portion and having a breadth of 0.43 inch +/-0.02 inch, and; (c) an integral tip extending from said integral support and following a curved path which is reverse in direction to the curved path of said integral support, said integral tip having edges tapering toward a vertical plane lying on said longitudinal axis and terminating in a pointed free end, said tip having a length of 1.10 inch +/-0.02 inch and two edges, each disposed at an angle of 4° +/-1° to vertical plane lying on said longitudinal axis, the end of said tip having a thickness of 0.045 inch +/-0.01 inch.
References Cited (Backward Citations)
US1313417A
Cited
FR462077A
Cited
US1474497A
Cited
US2362957A
Cited
US2427128A
Cited
US2695607A
Cited
US2863444A
Cited
FR1487486A
Cited
US3565061A
Cited
GB1274432A
Cited
US3750652A
Cited
US3731673A
Cited
US3776240A
Cited
US3801989A
Cited
US3955568A
Cited
USD245918S
Cited
SU634740A1
Cited
DE2808970A1
Cited
US4190042A
Cited
US4187840A
Cited
US4259068A
Cited
US4481947A
Cited
US4355631A
Cited
US4520797A
Cited
US4567885A
Cited
US4501266A
Cited
DD215468A1
Cited
US4747395A
Cited
US4621619A
Cited
US4726356A
Cited
US4686972A
Cited
US4738248A
Cited
US5002547A
Cited
US5035700A
Cited
SU1595499A1
Cited
US4945897A
Cited
US5122144A
Cited
US4993875A
Cited
US5190549A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-03-13 | 1998-09-12 | 1999-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-03-13 | 2002-09-12 | 2003-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-03-13 | 2006-09-12 | 2007-03-14 | $7700.00 | Window Closed / Lapsed |